corpusid
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255M
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24
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|---|---|---|---|
129,236,498 |
{
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"DOI": "10.1029/GL010I012P01180",
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|
An analysis using SAGE data for the period February 1979 to April 1980 was performed to determine the spatial extent and frequency of cirrus clouds over a large portion of the earth's surface. These results should be of interest to, among others, both the researchers concerned with global monitoring and modeling of the earth's radiation budget and climate and to reentry vehicle designers concerned about anomalous aerodynamic effects or damage due to the ice particles found in cirrus clouds. A by-product of the study reveals the statistics of tropospheric observational opportunities for a limb-sounding satellite sensor by determining the percentage of times of successful penetration to 7 km.
The results of the analysis showed that optically thick cirrus clouds are found most often in the mid-latitudes and over the tropics with distinct minima near the ± 20 to 30° latitude bands. Thin cirrus clouds (as defined in this paper), on the other hand, occur much less often than the optically thick cirrus clouds. A comparison of the optically thick cirrus clouds observed by SAGE was made zonally with surface-based observations and was found to generally agree. The percentage of tropospheric observational opportunities down to 7 km was as high as 60 percent in the upper latitudes but fell to about 30 percent in the tropics.
|
2022-10-28T15:23:19.384Z
|
122,378,275 |
{
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"ArXiv": null,
"DOI": "10.1088/0022-3719/18/7/015",
"MAG": "2081359798",
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"status": null,
"url": null
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|
A theoretical formulation for the cyclotron resonance linewidth in n-InSb at low temperatures has been developed. The present formulation consists of two competing scattering mechanisms, long-range ionised-impurity scattering and short-range multiple impurity scattering, and yields a minimum in the linewidth as a function a magnetic field, as observed experimentally. The magnetic field position corresponding to the minimum observed corresponds to a radius of the Landau orbit, almost equal to the correlation length between impurities.
|
2022-12-21T10:40:46.523Z
|
83,891,258 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1111/j.1399-3089.1997.tb00190.x",
"MAG": "1981199990",
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"license": null,
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"url": null
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|
Abstract: We have isolated and characterized a murine monoclonal antibody, 10–14, that is reactive with an 85 kDa glycoprotein found on porcine peripheral blood lymphocytes, cultured aortic endothelial cells, fetal cardiomyocytes, and mixed neural/glial cell cultures. In contrast to the anti‐CD44 antibody Z062, which reacted with both porcine and murine CD44, the 10–14 antibody did not react with monkey, rabbit, rat, or murine cells, suggesting that 10–14 recognized a novel epitope found exclusively on the porcine CD44 molecule; 10–14 is thus a novel reagent for identification of xenotransplanted porcine cells. The reagent has been used in this study as an immunohistochemical probe to detect porcine neural cell grafts in the central nervous system of the rat and to label porcine fetal cardiomyocytes. Moreover, the antibody provides information on the expression of the CD44 molecule that is critical for lymphocyte adhesion and trafficking.
|
2023-01-01T17:44:49.654Z
|
61,809,246 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICCES.2018.8639219",
"MAG": "2914337762",
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},
"license": null,
"status": null,
"url": null
}
|
today the treatment and diagnosis of diseases heavily rely on medical images. These images are produced in huge amount, which causes a bottleneck in the process of investigation. One of the most important diseases, which heavily rely on images, is Breast Cancer. We introduce a classification system based on a hybrid feature extractor that relies on Completed Local Binary Pattern (CLBP), Singular Value Decomposition (SVD), Gabor Filter, Wavelet Transform and Support Vector Machines classifier (SVM). The purpose of this research is to increase the level of classification automation of Breast Cancer (BC) Histopathological image. The Experimental approach was used to investigate the effect of the proposed algorithm which has shown promising results. These results were benchmarked against a standard dataset of BC Histopathological image.
|
2022-04-30T06:30:05.183Z
|
83,642,889 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1266/JJG.57.343",
"MAG": "1966679805",
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},
"license": null,
"status": null,
"url": null
}
|
A somatic hybrid plant between Nicotiana tabacum with N. debneyi cytoplasm and N. glutinosa was crossed with N. tabacum cv. `Samsun' pollen. Resulting individuals were further backcrossed with the same pollen donor in two successive generations. Analyses of polypeptide compositions of Fraction I protein contained in progenies of backcrossed generations indicated that the large subunit type was never changed and identical to original hybrid from (N. glutinosa type), and at the third backcrossing, N. glutinosa type small subunit was completely disappeared. A male sterile character, stigmatic-antheroid lacking anthers, appearing in a somatic hybrid was proven to be a cytoplasmic event, and was inherited in the backcrossed generations throughout.
|
2022-06-08T09:13:10.089Z
|
81,156,729 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.4236/OJOG.2018.86062",
"MAG": "2807360470",
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},
"license": null,
"status": null,
"url": null
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|
The objective of this study was to assess the efficacy and safety of the
2 hourly oral misoprostol for labor induction. Between May and November 2013,
the hospital records of 83 women who were induced for labor and met the eligibility
criteria were retrospectively reviewed. Eligibility criteria were singleton pregnancy of at least 34 weeks’
gestation and a baseline Bishop score 6. Women with a previous cesarean section or other
uterine surgery, severe pregnancy-induced hypertension, and parity of 4 or more
were excluded. Oral misoprostol was administered as 20 μg 2 hourly unless
active labor. A maximum of 12 doses was allowed. The age of the women was 27.9
± 5.3 years (mean ± SD). Vaginal delivery within 24 hours occurred in 38
(45.8%) women. Cesarean delivery occurred in 17 (20.5%) women. Although more
parous women achieved vaginal delivery within 24 hours (52.6%) compared with nulliparous
women (40.0%), the difference was not significant (P = .35).
Uterine tachysystole occurred in 12 (14.5%) women. No perinatal deaths or
neonatal intensive care unit admission occurred in the study group. Evidence
supporting an optimal regimen is lacking, and additional research is warranted
to optimize the use of oral misoprostol for the induction of labor.
|
2022-09-08T16:43:07.426Z
|
119,995,205 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/00949658608810948",
"MAG": "1966790253",
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"license": null,
"status": null,
"url": null
}
|
Repeated measurements experiments usually are analyzed either as a univariate analysis of variance or using a multivariate analysis. Only the multivariate analysis is correct for all normal errors, but the univariate analysis of variance has greater power for certain covariance structures. Using an approximation to the distribution of the analysis of variance test statistic, the power of these competing tests is compared.
|
2022-09-13T19:20:17.712Z
|
162,016,446 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5860/choice.193677",
"MAG": "1179135732",
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},
"license": null,
"status": null,
"url": null
}
|
Foreword Preface: Black Spanish Blood Acknowledgments Introduction Part I: History 1: From "Repression" to "Possession!" Part II: The Films 2: Blood Across Borders: The International Co-productions 3: The Hidden Steps: The National Productions 4: Selections for Further Consideration Part III: What's Past Is Prologue 5: Aftermath and Rebirth Appendix Selective Filmography Bibliography Index About the Author
|
2022-11-17T17:52:16.198Z
|
216,297,241 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1155/2020/9515710",
"MAG": "3013513883",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://downloads.hindawi.com/journals/mpe/2020/9515710.pdf"
}
|
Many small and medium enterprises (SMEs) with capital constraints often have no access or find it costly to obtain a loan from a bank; the retailer tends to borrow money from other enterprises in the supply chain by trade credit financing. We consider an emission-dependent supply chain with one emission-dependent manufacturer and one capital-constrained retailer in need of financing to explore the optimal operational and environmental strategies of a low-carbon supply chain under trade credit financing. We use a Stackelberg game model to depict the low-carbon supply chain. We analyse the optimal carbon-emission reduction effort, wholesale price, and order quantity in the equilibrium state. The impacts of key parameters, such as the retailer’s internal working capital, the manufacturer’s risk-aversion degree, and the carbon-trading price on the supply chain operation, are analysed. The results show that the retailer’s capital constraint causes the carbon-emission reduction effort, wholesale price, and order quantity to improve synchronously. The supply chain achieves a win-win outcome for both the manufacturer and the retailer when the capital-constrained retailer is funded via trade credit from the manufacturer. The in-depth development of financing is beneficial to the manufacturer but is a disadvantage for the retailer. When the initial carbon-emission quota is low, the manufacturer benefits from a relatively lower carbon-trading price. Otherwise, a higher carbon-trading price is better for the manufacturer. The “carbon-trading price trap” ensures that the retailer’s profit is minimal. We further investigate the scenario in which the manufacturer is risk averse and find that the retailer will purchase fewer products and that the manufacturer will gain less profit to decrease the carbon-emission reduction effort. The manufacturer’s risk aversion is unfavourable to both the economic and environmental outcomes of the whole supply chain. This research provides strategic support for a low-carbon supply chain to carry out operational decisions in the context of enterprise capital constraint. To examine the theoretical results, the data used in the existing literature are further used to simulate the corresponding conclusions. Our research enriches the existing supply chain finance literature and provides decision support for the supply chain core enterprise.
|
2022-11-25T01:04:40.843Z
|
188,979,081 |
{
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"ArXiv": null,
"DOI": "10.1145/3219104.3219120",
"MAG": "2836041025",
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"license": null,
"status": null,
"url": null
}
|
As we move towards peta-to-exascale machines, large-scale physics based simulations are expected to generate large amount of I/O traffic based on unprecedented growth in the volume and types of data. It is imperative to understand and characterize the I/O behavior of scientific applications, including complex checkpoint/restart options, on different hardware-software configurations including large shared parallel file systems, node local flash, and burst buffer technologies, to tune and improve the overall application performance. In this work, we study the I/O behavior of WRF, a widely used scientific application for atmospheric research and operational weather forecasting, on high performance computing systems. WRF provides a rich collection of I/O strategies such as using different parallel I/O libraries (PnetCDF, NetCDF) and I/O quilting options with these libraries, as well as configurable I/O "knobs" that can be used to modify the I/O frequency. We evaluate the effectiveness of using various I/O strategies within WRF in conjunction with parallel file system parameter tuning on Comet and Stampede2 HPC systems. We discuss the impact of using various parallel I/O strategies and further show the use of an I/O profiling tool to analyze an anomalous parallel I/O behavior. Overall, we provide a discussion on tuning and performance insights gained from our evaluations.
|
2022-12-25T04:22:31.832Z
|
110,220,113 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.2749/101686604777963711",
"MAG": "2048665095",
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},
"license": null,
"status": null,
"url": null
}
|
The Milwaukee Art Museum Quadracci Pavilion is an architectural and engineering masterpiece.The complex landmark building includes unusual shapes of concrete and steel, cantilevered concrete canopies that stretch the limits of the material, and a unique cable-stayed bridge. Its signature feature is a moveable roof, whose 66 m wingspan opens and closes on top of a pavilion of steel and glass all in a little over three minutes.Through the ingenious use of classical structural forms, counter-balancing loads, and materials such as steel, concrete and glass, the building celebrates light, space, material, form and structure.
|
2022-02-10T05:17:22.462Z
|
24,265,912 |
{
"externalids": {
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"DOI": "10.2169/INTERNALMEDICINE.40.246",
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"url": null
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|
A 69-year-old woman with idiopathic thrombocytopenic purpura, who was regularly followed and treated with prednisolone and danazol, was admitted to our hospital because of shortness of breath. Chest roentgenogram showed a large amount of left-sided pleural effusion. Gram-positive branching rods, subsequently identified as Nocardia farcinica, were isolated from the fluid. Antibiotic treatment together with pleural drainage with an intercostal catheter resulted in complete remission of pyothorax. Pulmonary nocardiosis is a rare disease, but recognition of the disease in immunocompromised patients and the prompt initiation of appropriate treatments based on isolation of the pathogen can lead to a successful outcome.
|
2022-09-09T23:37:49.470Z
|
29,386,213 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/TE.1983.4321628",
"MAG": "2028136137",
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"license": null,
"status": null,
"url": null
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|
This paper focuses on continuing engineering education (CEE) as distinguished from degree-oriented education and retraining. In its complementary role to work assignments, supervision and coaching, and career planning, CEE is a means for helping individuals develop themselves in order to accelerate the process of "joining up," perform more effectively on current jobs, prepare for new jobs, gain greater personal satisfaction from their work, and enhance their identiflcation with or commitment to an organization. Societal forces (such as new technology, decreasing mobility, tight supply of technical professionals, slow-growth economy, and intensity of foreign competition) are highlighting the importance of CEE in the 1980's and 90's. Factors determining the usefulness of CEE are discussed. The primary obstacles facing CEE and suggestions for meeting them are described.
|
2022-09-11T15:35:18.985Z
|
254,335,829 |
{
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"ArXiv": null,
"DOI": "10.2139/ssrn.4284857",
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|
Permanently injecting the atmospheric CO2 into the subsurface aquifer is considered one of the safest and quickest solutions to meet the climate goal (i.e., keep the global temperature below 1.5 to 2.0C). The Longship ful-scale CCS project is one such initiative by the Norwegian Government and the Northern Lights JV (a joint venture company owned by Equinor, Shell, and TotalEnergies) to store CO2 underground in the Horda Platform area (Aurora prospect), offshore Norway. In phase-1, every year 1.5 Mt. of captured CO2 will be injected into a saline aquifer at a depth of 2600 meters below the seabed (Northern Lights). The reservoir rocks in the Aurora prospect comprise Early Jurassic Cook and Johansen formation sandstones, while the Early Jurassic Drake Formation shale is the primary caprock. In the Aurora injection site, a thin shale layer called Upper Amundsen/Burton Formation is prenetrated by well 31/5-7 (a recently drilled confirmation well that will be used as an injector when the project starts) within the reservoirs sandstones of Cook and Johansen formations. The lateral distribution of the Upper Amundsen Formation shale is critical for connectivity between the Cook and Johansen formation sandstones and so will play an essential role for vertical CO2 flow, pressure build-up (if flow barrier), and evolution/migration of the plume. . In the near future, the Upper Amundsen Formation shale will play even significant role when the Longship project upscales CO2 storage potential (5 Mt per year in phase-2). Therefore, the connectivity between the Johansen and Cook formations can be controlled by the Upper Amundsen shale and influenced the injectivity and storage capacity of the project Thus, the total connected pore volume of Johansen and Cook sandstones is dependent on the spatial distribution of the Upper Amundsen shale; therefore, it is crucial to assess the lateral distribution and thickness of the Upper Amundsen Formation to evaluate the connectivity of the Cook and Johansen formation sandstones. The main objective of this study is to identify the lateral distribution of the Upper Amundsen shale in and around the Aurora prospect. In this study, we use we perform seismic inversion to calculate shale volume (Vsh) cube. The inversion method has been described in Fawad et al. (2021). The Vsh fraction ranges from 0.5 to 1 assumed to clay zone where 0.5 to 0.75 is defined as silty shale, and 0.75 to 1 represents the clay-dominated shale. The Vsh cut-offs are implemented into the ‘Horizon probe’ module in petrel-2019, where the upper surface and lower surfaces are used as base Drake and top Johansen formation horizons, respectively. Cook (Sandy part) and upper Amundsen (shaly unit) formations represent the interval between these two horizons. The volume of shale of the sandy unit (i.e., 0 to 0.5) is made transparent using the ‘Horizon probe’ to clearly visualize the lateral distribution of the shale s. Two transmissibility cut-offs (0.5 & 0.75) are used to identify the distributions of the silt and clay-dominated parts . The shaly part (Vsh=0.75-1) of the studied interval is illustrated in figure 1. In general, the Upper Amundsen shale is PCCC5 Md Jamilur Rahman 2 not present throughout the study area. A northeast-southwest missing section of the Upper Amundsen shale zone is identified located north of the well 31/5-7 even in cut-off 0.5 (Fig. 1a). Moreover, in the well (31/5-7) location, the Vsh value represented ~0.55, which extended towards the southeast direction. However, according to our assumption regarding the silty and clay-dominated cut-offs, the upper Amundsen shale is mostly silty shale. The clay-dominated upper unit is sparsely distributed, mainly in the northeast and southeastern part of the study area. Although the proxy of Vsh as mineralogy has limitations, the silty upper Amundsen shale in the study area has better matched with the predicted log-based Vsh. Based on this research, we conclude that the Cook and Johansen formation sandstones are often juxtaposed in the area with possible connections between the two formations. This plumbing mechanism will reduce the total connected pore volume (reservoir capacity) and influence the injectivity especially in phase 2. However, we need numerical simulation to identify the Aurora storage site's optimal injectivity rate, potential storage capacity, and plume evolution (shape and direction of plume migration). Figure 1: Seismic Inverted shale volume from a 3D seismic cube in between the base Drake shale and top Johansen reservoir interval illustrated the lateral distribution of upper Amundsen shale around the Aurora injection site (red dot, well 31/5-7) with a Vsh cut-off of 0.5 (a) and 0.75 (b). The light blue lines represent the major (i.e., TF Tusse Fault; SF – Svartalv Fault; TrF – Troll Fault) and minor faults, while the purple boundary illustrated the northern limit of the first CCS exploitation license (EL001) boundary in the Horda Platfrm area. The light pink polygon represents the Troll Gas Fields (i.e., TE – Troll East; TW – Troll West, further north of the injection point). The well 31/5-7 and 31/5-2 are added for reference.
|
2022-12-07T22:36:01.949Z
|
3,351,236 |
{
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"DOI": "10.1159/000325682",
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|
OBJECTIVE
To investigate the sensitivity and specificity of the Pap smear for detection of adenocarcinoma in situ of the cervix (AIS), endocervical adenocarcinoma (ECAC) and endometrial adenocarcinoma (EAC) as well as the overall specificity of the smear for detection of glandular lesions in general.
STUDY DESIGN
Computer records of the laboratory of the QE II Health Sciences Center, Halifax, were searched for patients who had AIS, ECAC or EAC diagnosed on histology between June 1, 1999, and May 31, 2001 and who had had a Pap smear within the preceding year. Computer records were also searched for patients who had a Pap smear result consisting of suspicious or positive for AIS or adenocarcinoma (AC) with subsequent tissue diagnosis during the same time. The histologic and cytologic findings were correlated.
RESULTS
One hundred percent of patients with AIS, 80% with ECAC and 22% with EAC on histology had positive findings on a Pap smear performed within a year of the histologic diagnosis. One hundred percent of patients with a Pap smear result consisting of suspicious or positive for AIS or AC and follow-up histology had a lesion on histology: 13% AIS, 13% ECAC, 37% EAC, 23% other AC, 10% high grade squamous lesion and 0.3% low grade squamous lesion.
CONCLUSION
This study confirmed the good overall specificity of the Pap smear for glandular lesions in general. It also confirmed the good sensitivity for glandular lesions of the cervix and the poor sensitivity for glandular lesions of the endometrium. It thus confirmed that the Pap smear is not an effective screening tool for endometrial AC, and that the quest for alternative screening methods should continue.
|
2022-12-12T10:24:25.058Z
|
44,276,540 |
{
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"DOI": "10.1002/jemt.21130",
"MAG": "2109451296",
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"license": null,
"status": null,
"url": null
}
|
Brazilian endemic species Diplodon expansus (Küster, 1856) is found in freshwater bodies in the country's southeast, in large anthropogenic influence regions especially with an extensive agriculture emphasis. One of the main pesticides used in the species occurrence region is the atrazine herbicide, which has a great contamination potential in the aquatic environment. Therefore, several studies into its toxicity in aquatic systems have been developed. However, the tested concentrations are usually very high and rarely found in the environment and the short‐term exposure responses in other aquatic organisms such as native bivalves are still scarce. Thus, this study sought to consider the potential effects of environmentally realistic concentrations of atrazine herbicide on the surface morphology of gill filaments of the bivalve D. expansus under laboratory‐controlled conditions after short‐term exposure. None of the animals died before the end of the experiment. The main alterations were observed on the frontal surface of filaments, which include mucus accumulation, cilia loss, and disruption. Mucus increased secretion and accumulation in the frontal filaments region preceded as a protective mechanism. Cilia loss and disruption on the frontal surface of the gill filament indicated that ciliated frontal cells were more sensitive to atrazine exposure and these alterations may cause gills functional damages, compromising the uptake of food particles and respiration. Therefore, higher sublethal concentrations of atrazine may compromise the survival and consequently the population of D. expansus in agriculture areas after a longer period of continuous exposure. Microsc. Res. Tech. 75:807–813, 2012. © 2011 Wiley Periodicals, Inc.
|
2022-12-03T19:11:52.521Z
|
144,043,925 |
{
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"DOI": "10.1177/000169938402700408",
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"status": null,
"url": null
}
|
Kenneth D. Wald’s Crosses on the Ballot is in most respects an extraordinary book. It is in my opinion one of the most impressive pieces of work coming out of the ’cleavage tradition’ of which the seminal article of Lipset & Rokkan (1967) is the main theoretical basis. This tradition puts the emphasis on the electoral consequences of social division and on the relationship between social structure and partisanship. Wald describes and interprets the structures of voter alignments under the Third Reform Act (1885-1917) and explains the dramatic transformation of
|
2022-12-21T04:11:27.500Z
|
8,612,534 |
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"DOI": "10.1039/c3cp53263a",
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"status": "GREEN",
"url": "https://lirias.kuleuven.be/bitstream/123456789/423316/5/postprint_silver_nitrates.pdf"
}
|
The synthesis, structural, thermal and electrochemical properties of fluorine-free silver-containing ionic liquids are presented. The ionic liquid cations are formed by a silver(i) ion surrounded by two 1-alkylimidazole ligands, with the counter anions being nitrate ions. Depending on the alkyl chain length, the complexes were found to be liquids at room temperature or melting slightly above this. For the solid compounds it was possible to elucidate the structure by single crystal X-ray analysis. The ionic liquids are electroactive, have good mass transport properties and can be used for the electrodeposition of silver at high current densities. The thermal properties and stability of these compounds were tested by differential scanning calorimetry and thermogravimetric analysis. The viscosity of the ionic liquids follows a Vogel-Tamman-Fulcher relationship as a function of temperature. The electrochemical properties of the complexes were tested by cyclic voltammetry and the resulting electrodeposits were examined using scanning electron microscopy and atomic force microscopy.
|
2022-12-18T12:20:08.451Z
|
119,282,618 |
{
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"ArXiv": "0903.0794",
"DOI": "10.1103/PHYSREVB.80.094508",
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|
The strange metal phase of optimally and overdoped cuprates exhibits a number of anomalous transport properties: unsaturating linear T resistivity, distinct relaxation times for Hall angle and resistivity, temperature dependent anisotropic relaxation times, and a characteristic crossover from supposed Fermi Liquid to linear T behavior. All receive natural explanations and quantitative fits in terms of the Hidden Fermi Liquid theory.
|
2022-12-31T18:47:59.692Z
|
188,740,755 |
{
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"DOI": "10.1093/med/9780190225483.003.0011",
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|
The chapter Predicting Prognosis with the Exercise Test: Putting It All Together synthesizes the diagnostic and prognostic components other the presence or absence of ST depression that can increase the power of exercise testing. These components include resting heart rate, time of onset and magnitude of ST depression, angina, exercise duration, heart rate recovery, chronotropic incompetence, and the ST Heart Rate Index. The sensitivity and specificity of exercise testing and Bayes theorem are reviewed in conjunction with the challenge of determining a satisfactory gold standard for defining coronary artery disease (CAD) and ischemia. The implications of the decrease in the burden of CAD in the United States and other industrialized countries is reviewed, including the opportunity to include ≥1.5 mm of upsloping ST depression as a criterion of an abnormal exercise test. The implications of Bayes Theorem and post-referral bias are scrutinized. Emerging data suggesting that habitual physical activity and physical fitness may decrease cancer risk is examined.
|
2022-01-27T14:35:20.443Z
|
237,386,495 |
{
"externalids": {
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"ArXiv": "2109.01032",
"DOI": "10.1088/1741-4326/ac49ab",
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"license": null,
"status": "GREEN",
"url": "http://arxiv.org/pdf/2109.01032"
}
|
We present a procedure to examine energetic particle phase-space during long range frequency chirping phenomena in tokamak plasmas. To apply the proposed method, we have performed self-consistent simulations using the MEGA code and analyzed the simulation data. We demonstrate a traveling wave in phase-space and that there exist specific slices of phase-space on which the resonant particles lie throughout the wave evolution. For non-linear evolution of an n = 6 toroidicity-induced Alfvén eigenmode (TAE), our results reveal the formation of coherent phase-space structures (holes/clumps) after coarse-graining of the distribution function. These structures cause a convective transport in phase-space which implies a radial drift of the resonant particles. We also demonstrate that the rate of frequency chirping increases with the TAE damping rate. Our observations of the TAE behavior and the corresponding phase-space dynamics are consistent with the Berk–Breizman theory.
|
2022-08-20T10:44:25.897Z
|
97,205,266 |
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"DOI": "10.1021/JP802922F",
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}
|
A comprehensive study including (i) the synthesis of colloidal zeolite-β nanoparticles with size below 100 nm from precursor suspensions, (ii) kinetics of the crystallization process of zeolite-β, (iii) stabilization of the β nanocrystals in coating suspensions, (iv) preparation of homogeneous thin films by a spin-coating approach, and (v) physicochemical characterizations of the films are the focus of this paper. It has been demonstrated that the crystallization process of β was completed within 7 days, and the final size and shape of the nanocrystals resemble the amorphous particles in the precursor suspensions. Next, the crystalline β particles were stabilized in colloidal suspensions under addition of inorganic silica-based binders and further applied for a spin-on process of films. It has been confirmed that the number of coating steps, speed of deposition, concentration of coating suspensions, and type of binders had a pronounced influence on the thickness, mechanical, and optical properties of the ...
|
2022-09-11T23:33:36.199Z
|
143,999,362 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3366/ELR.2005.9.3.395",
"MAG": "2019742280",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper is one of a set of studies on the contribution of Lord Cooper of Culross (1892–1955) to the development and understanding of Scots law, including its history, and to the phenomenon of Scottish legal nationalism. Cooper is one of the major figures of Scots law in the twentieth century. He practised at the bar between the two world wars, became an MP and Lord Advocate (the principal Scottish Law Officer) in the 1930s, and in 1941 was appointed to the Court of Session bench, first as Lord Justice Clerk and, then, in 1947, as Lord Justice General and Lord President, head of the Scottish judiciary. He was also, in 1934, one of the founders of the Scottish legal history society, the Stair Society, and made significant contributions to its early volumes, in particular with editions of the medieval texts Regiam Majestatem, Quoniam Attachiamenta and the “Register of Brieves”. Cooper was also a prolific writer and commentator on the law in aspects other than its history, and a collection of his papers appeared after his premature death following a cerebral thrombosis. My principal reason for first becoming interested in Cooper many years ago was his work on the medieval history of Scots law, and the English influences which were so important to that history. He had certain theories on this subject with which I soon found myself in significant (although not total) disagreement. I do not wish to elaborate further on this theme here; most of my observations on the
|
2022-10-07T00:33:03.852Z
|
100,979,717 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2174/1573411010666141119220515",
"MAG": "2317803406",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this work is suggested a Clark type electrode with disposable enzyme membrane for phe- nols determination. This approach allows avoiding the electrode fouling by recording the oxygen re- duction current, and obtaining a stable and reproducible sensor response. An appropriate method for enzyme membrane fabrication by cellulose acetate filters coating with tyrosinase through the use of biocompatible hydrogels was proposed and tested. The sensitivity of the catechol determination, as an example, was found to be 0.89 ∝A mmol -1 L. The detection limit equaled 1 ∝mol L -1 . The achieved RSD was 1.22%.
|
2022-12-12T02:08:57.827Z
|
32,454,103 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/ajop.12052",
"MAG": "1969816022",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study investigated the differential influence of contextual risks for positive psychosocial functioning and participation in education or employment in a representative sample of 12- to 17-year-old Aboriginal youth (N = 674) using data drawn from the Western Australian Aboriginal Child Health Survey (WAACHS) 2000-2002. The authors modeled the influence of 3 empirical risk measures (risk factor, cumulative risk, and single risks) on positive psychosocial functioning and participation in education or employment. Results showed different risks for different developmental outcomes. Single sociodemographic risks were associated with reduced likelihood of positive psychosocial functioning, whereas cumulative risk and composite Family Health and Community Risk measures were associated with reduced likelihood of participation in education or employment. Methodological issues and implications for interventions to support young Aboriginal people's adaptation are discussed.
|
2022-12-20T14:32:35.121Z
|
250,048,394 |
{
"externalids": {
"ACL": null,
"ArXiv": "2206.12402",
"DOI": "10.3847/1538-4357/ac8eab",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://doi.org/10.3847/1538-4357/ac8eab"
}
|
The dynamical stability of hierarchical triple systems is a long-standing question in celestial mechanics and dynamical astronomy. Assessing the long-term stability of triples is challenging because it requires computationally expensive simulations. Here we propose a convolutional neural network model to predict the stability of equal-mass hierarchical triples by looking at their evolution during the first 5 × 105 inner binary orbits. We employ the regularized few-body code tsunami to simulate 5 × 106 hierarchical triples, from which we generate a large training and test data set. We develop 12 different network configurations that use different combinations of the triples’ orbital elements and compare their performances. Our best model uses six time series, namely, the semimajor axes ratio, the inner and outer eccentricities, the mutual inclination, and the arguments of pericenter. This model achieves excellent performance, with an area under the ROC curve score of over 95% and informs of the relevant parameters to study triple systems stability. All trained models are made publicly available, which allows predicting the stability of hierarchical triple systems 200 times faster than pure N-body methods.
|
2022-11-11T08:10:16.255Z
|
249,593,080 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5937/biljlek2203259m",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "GOLD",
"url": "https://scindeks-clanci.ceon.rs/data/pdf/0354-6160/2022/0354-61602203259M.pdf"
}
|
The research was prompted by the assumption that users of plant protection products (PPPs) in Serbia are not sufficiently familiar with the regulations and trained for efficient and safe application of PPPs. The aim of the research was to obtain answers to selected questions on the basis of which the training and behavior of users could be assessed, ie whether the application of PPPs is in accordance with the regulations for users supplied with PPPs in smaller stores. Thanks to the initiative and support of the Ana and Vlade Divac Foundation, a survey of PPP users on knowledge of regulations and behavior related to the use of PPP was organized on the territory of the Republic of Serbia. The survey was preceded by training of interviewers, and the questionnaire was designed to examine the attitudes of respondents on behavior in the selection, application, storage, use of personal protective equipment, knowledge of regulations in this area, packaging waste management and other selected important aspects related to PPPs use. Interviewers conducted the survey from 7-17. May 2021, during which 1030 farmers were interviewed in a random and representative sample, in 116 municipalities and 227 agricultural pharmacies. The answers to the questions from the questionnaire were grouped into logical units, analyzed and presented for the territory of the Republic of Serbia, the segmentation of the results of the total sample by regions, gender, age and level of education was done. The survey mostly covered farms with an arable land size of up to 10 ha (71.8% for the whole of Serbia), and the most represented were respondents older than 50 years (58.7%), with completed high school (74.7%). Small shops of agricultural inputs are the main supplier of PPPs (96.2%), and the majority of respondents make the decision in choosing PPPs (83.8%). Before buying PPP, 91.5% of respondents consult with experts, and the most useful advice for choosing PPP is received from sellers at the point of sale (67.4%), advisors from advisory services (18.9%), representatives of PPP manufacturers (7.5%) and at least via the internet, TV and press (2.3%). The majority of respondents apply PPPs according to the label (85.7%), and records on the types and quantities of PPPs stored and used are kept by 75.7% of respondents. A large percentage of PPP users do not use any personal protective equipment (4.6%), while only 21.3% of respondents use complete personal protective equipment. About 6% of respondents bought illegal PPPs, and the main reasons were higher trust (56.6%), better price (25.3%) and recommendations (13.1%). Of the total number of respondents, only 15.6% store PPPs in a special room for this purpose, as many as 24.2% of respondents do not use the rinsing of PPPs containers. The behavior related to the management of packaging waste from PPPs is worrying, with 50% of respondents disposing of packaging in municipal waste, 37.4% destroying it by burning, 3.3% disposing of it in the field, and only 9.3% keeping it until collection from packaging collection companies. Of the total sample, the sprayer is owned by 95.7% of respondents, with their calibration before the application of PPPs performed by 38%. Some articles of the Law on Plant Protection Products ("Official Gazette of RS", No. 41/09 and 17/19) enter into force on January 1, 2022. Of special importance are the provisions related to the inspection of equipment for the application of PPPs, and as many as 82% of respondents are not familiar with this. Only 27.4% of respondents know the Law on Plant Protection Products. Of the total number of respondents, 57% are of the opinion that they do not need training about PPPs, 22.2% that they need it, 14.5% that they need it, but they cannot take the time to do so or do not know who to contact (6.2 %). The majority of respondents (40.6%) believe that advisors from extension services should be educators of PPPs users, then representatives of PPPs producers (23.2%), distributors (22.3%), professors and scientists (11.4%). Training of PPPs users is of great importance and in accordance with the Law on PPPs will be mandatory from January 1, 2022, with a small percentage of respondents (11.6%) aware of this. Only 37.7% of respondents in this survey support that the same regulations on plant protection products apply in Serbia as in the EU, 30.3% are against, and 32% do not know which regulations they are. The obtained results show that PPPs users in Serbia are not sufficiently familiar with the regulations and trained for efficient and safe application of PPPs, that PPPs are largely not applied in accordance with regulations and that there is a high risk to human health and the environment. In this regard, it is necessary to introduce a system of permanent training, periodic testing of knowledge and certification of PPPs users, then a system to control the correctness of equipment for the application of PPPs and mandatory knowledge and compliance with legislation and keeping records on the application of PPPs.
|
2022-07-09T05:12:00.608Z
|
153,512,284 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4000/REMI.2825",
"MAG": "1969653930",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Les transferts migratoires constituent un enjeu de taille pour les pays en developpement. Nous analysons ici uniquement la part officielle des transferts, mesuree dans la Balance des Paiements, etant donnees les difficultes de mesure de leur composante informelle, dont le poids peut pourtant etre lourd. Les donnees confirment l’hypothese d’un taux de transfert plus eleve pour les migrants installes dans les pays du Golfe que dans les pays industrialises a l’economie diversifiee tels la France. La presence des pays du Golfe dans le peloton de tete des pays emetteurs de transferts est la preuve du role des migrants dans la redistribution de la manne petroliere. La comparaison des principales destinations des flux a pres de vingt ans d’intervalle (1985 et 2003) pour un echantillon de 103 pays en developpement, met en evidence une relative stabilite, du moins dans la hierarchie des plus gros destinataires. Faut-il y voir une dependance des pays a l’egard des flux de transferts ? La comparaison des transferts a quatre indicateurs macro-economiques (PIB, revenus du tourisme, exportations, investissements directs etrangers (IDE) permet d’affiner l’analyse en revelant l’heterogeneite intra-regionale des situations.
|
2022-07-08T03:55:24.244Z
|
207,502,414 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3109/09638288.2015.1044032",
"MAG": "1854618023",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
Abstract Purpose: We investigated the combined effects of repeated sauna therapy and exercise training on subjective symptoms, cardiac function, daily activities and ambulation capacity in patients with chronic heart failure. Methods: Fifty four patients including 26 patients with repeated sauna therapy and exercise training (combined therapy group) and 28 patients with repeated sauna therapy (monotherapy group) participated in the study. Repeated sauna therapy and exercise training were performed once a day, 5 days a week. Clinical symptoms, brain natriuretic peptide concentration, cardiac functions evaluated by echocardiography, cardiac size on chest radiography, Barthel Index (BI) and ambulation capacity were examined and compared between the time of hospital admission and the time of discharge. Results: Both the groups showed significantly improved New York Heart Association functional class, cardiothoracic ratio, brain natriuretic peptide concentration, left ventricular ejection fraction, BI score and ambulation capacity grade. The changes of New York Heart Association functional class, BI score and ambulation capacity in the combined therapy group were a higher level of statistical significance than those in monotherapy group. Notably, significant between group difference was observed in the changes of BI score. Conclusions: The addition of exercise training programs to repeated sauna therapy may be efficient and effective for improvement of cardiac function and daily activities for patients with chronic heart failure. Implications of Rehabilitation Repeated sauna therapy is an effective means of improving cardiac, vascular function and mental health in CHF patients. Exercise training is an effective means of improving exercise capacity, thus improving ADL. Combination of repeated sauna therapy and exercise training may be recommended as a comprehensive treatment to improve cardiac function, ambulation capacity, and ADL in CHF patients.
|
2022-12-11T19:45:34.618Z
|
237,391,794 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/jvh.13605",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We read with great interest the study conducted by Kim et al.1 , which considerably enriches the body of knowledge on the benefits of chronic hepatitis C virus (HCV) infection cure, from the patient's point of view. Based on data collected before and up to 10 months after HCV treatment ended in 89 adult patients who achieved HCV cure, findings showed significant improvements in a wide range of symptoms. The authors cite the relatively small sample size and single-center recruitment as study limitations1 .
|
2022-12-17T11:13:42.329Z
|
164,746,693 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.15781/T2F47H88S",
"MAG": "2757037578",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Bennett explains and describes the classification and numbering conventions to Knossos and Pylos tablets and the logic behind their new organization.
|
2022-02-08T20:18:01.062Z
|
110,669,702 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/CEN-V083N045.P009A",
"MAG": "2064631244",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
After eight weeks of resistance, vaccine maker Chiron has accepted a sweetened offer by Novartis, the Swiss drug giant. Novartis will acquire the 58% of Chiron that it doesn't already own for $45.00 per share, or about $5.1 billion in cash. Novartis, which has owned 42% of Chiron for some 10 years, first offered to acquire the rest of the company on Sept. 1 for $40.00 per share, or $4.5 billion. At the time, Chiron rejected the offer as inadequate (C&EN, Sept. 12, page 12). With the deal, expected to be complete in first-half 2006, Novartis will get the world's fifth largest vaccine maker, albeit one that has been beset by quality problems. Novartis CEO Daniel Vasella says his plan is "to turn around the Chiron vaccine business, which will require investments in R&D and manufacturing to increase quality and capacity." Big drugmakers are becoming interested in vaccines after years of indifference. Novartis, for example, ...
|
2022-02-10T04:51:41.013Z
|
241,954,625 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.36290/neu.2020.027",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "http://solen.cz/doi/10.36290/neu.2020.027.pdf"
}
|
Teriflunomid je léčivý preparát pro léčbu roztroušené sklerózy jako jedna z možností terapie 1. linie. Dle studií na zvířatech má teratogenní a embryotoxický potenciál. Data o užívání v těhotenství u žen jsou omezená a jeho užívání v graviditě je kontraindikováno. Článek se zabývá problematikou gravidity během expozice teriflunomidem. Klíčová slova: roztroušená skleróza, teriflunomid, těhotenství.
|
2022-09-07T12:10:26.989Z
|
121,131,029 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1118/1.2241314",
"MAG": "2042333943",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Purpose: To improve immobilization and setup accuracy of patients undergoing extracranial radiosurgery(SBRT therapy). Make possible SBRTtreatments of oversized patients. Method and Materials: Advantages of frame based extracranial therapy are: (i) Reduction of the imprecision of positioning. (ii) Reduction of the geometrical treatment error in case frameless delivery tools malfunction. (iii) Efficient and reliable method of abdomen pressure for decreasing tissue motion effects. (iv) Comfort positioning that diminishes body movements caused by fatigue or pain manifest for an extended period of treatment. To utilize advantages of frame based approach to extracranial radiotherapy, and to also address some of the shortcomings of the existing immobilization devices, the new stereotactic body frame (SBF) has been constructed. The frame has been designed to be light, strong and rigid. The frame allows minimizing the disturbance of the penetrating radiation and facilitates its easy handling by therapists/physicists/physicians. The frame displays necessary rigidity to minimize errors associated with potential deformation. For these reasons the frame, as well as all accessories, have been all built from carbon fiber. The system is additionally equipped with the multimodal marker sources allowing synchronizing images of frame and patient body from a variety of imaging platforms. In summary, the new SBF frame allows dealing effectively with: (i) patient size limitations, (ii) abdominal pressure adjustments and pressure monitoring, (iii) stability and positioning accuracy of the measuring arc, (iv) fixation mechanism connecting frame to the couch (to utilize automatic couch motion capability), (v) facilitating extended distance SAD treatments.Results: The device satisfying considerations discussed above have been constructed. The device's parameters and accessories have been evaluated and its clinical applications defined and verified. Conclusion: The new carbon fiber immobilization frame for SBRTtreatments is ready for clinical evaluation. Conflict of Interest: Research supported by a grant from Varian Medical Systems.
|
2022-02-09T20:23:21.819Z
|
21,893,012 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1183/09031936.93.06101507",
"MAG": "1940839230",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://erj.ersjournals.com/content/erj/6/10/1507.full.pdf"
}
|
The association of asthma with the release of inflammatory mediators, through a mechanism that involves the immune system, has taken almost 100 years to evolve. While studies on lung tissue from patients who had died from asthma pointed to inflammation of the airways as a major lesion, clinicians have, until relatively recently, preferred to consider the disease more in terms of airways dysfunction rather than the cause(s) of this dysfunction. Bronchial mucosal biopsy and lavage has reaffirmed the view that asthma is a special type of airway inflammation involving mast cells and eosinophils which is orchestrated by T-lymphocytes of a Th2-like phenotype. Through cytokine release, these cells upregulate the function of mast cells and eosinophils. However, other factors are now considered important in the maintenance and chronicity of the inflammatory response both through tissue remodelling (e.g. fibrosis) and through the secretion of cytokines from epithelial, endothelial and constitutive mesenchymal cells. Evidence is accumulating that these events are genetically-linked although this is likely to involve multiple genes. Of special importance is the role of the environment both in the induction of allergen sensitised airways and the subsequent inflammatory response that follows. Included in these are intrauterine events, early life exposure to allergens, pollutants and viruses. If prevention of asthma is to be a future target for intervention, then future work should concentrate on those early genetic and environmental factors that initiate the inflammatory response rather than relying on strategies that attempt to reverse established disease.
|
2022-11-18T00:58:47.762Z
|
196,706,248 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/CHIN.201533060",
"MAG": "1943239999",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A catalytic system comprised of a bis(alkoxo)palladium complex and Xantphos is tested in the heteroarylation of 2-methylthiophene (I) and heteroarenes (VI).
|
2022-12-14T02:55:20.357Z
|
234,193,486 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21608/JASEP.2021.136068",
"MAG": "3120985765",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
هدفت الدراسة إلى التعرف على دور التخطيط في تطوير أداء معلم الکبار وفق مهارات القرن الحادي والعشرين. ولتحقيق هدف الدراسة تم اتباع المنهج الوصفي المسحي، وتکونت عينة الدراسة التي تم اختيارها بطريقة العينة العشوائية البسيطة، وتم استخدام الاستبانة أداة للدراسة وزعت على (390) معلم من معلمي الکبار. وتوصلت نتائج الدراسة إلى أن للتخطيط لتطوير أداء معلم الکبار وفق مهارات القرن الحادي والعشرين دور في تحسين أداءهم التدريسي، وفي ضوء تلک النتائج تم تقديم مجموعة من التوصيات کان من أبرزها: ضرورة التخطيط لبرامج تدريبيه لمعلم الکبار تدربه على مهارات تصميم التعليم وکيفية التخطيط للعملية التعليمية؛ ضرورة إلحاق معلم الکبار بدورات تدربه على البحث العلمي، ضرورة التخطيط لإنشاء مراکز لتصميم وإنتاج البرامج والمواد التعليمية لتعليم الکبار بما يتماشى مع تحديات التحول الرقمي وانعکاساته على التعليم .
|
2022-01-27T04:14:17.059Z
|
62,610,436 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/ECJA.4410771105",
"MAG": "2067246665",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper explains a system configuration for long-span applications of repeaterless optical transmissions for their corresponding efficiency. From the results of a year-long field test and in-house experiments, the practicality of the CPFSK heterodyne delay demodulation method for 2.5 Gbit/s using a high-output optical fiber amplifier has been evaluated.
|
2022-02-11T14:30:52.972Z
|
143,926,995 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/13619469408581291",
"MAG": "2001652044",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This article analyses the relationship between the London press and politicians in respect of the Indian Empire during the first two decades of the twentieth century. The gathering and transmission of news from the subcontinent is discussed, it being argued that structural constraints upon the supply of information facilitated its management by Government. Also investigated is the process by which the British Government sought to direct public expression on Indian policy. Techniques employed to influence news coverage are examined, particular emphasis being placed upon the prevailing system of control by means of personal persuasion and informal contact between journalists and politicians. The evolving rationale and methods of press control are accounted for by reference both to political developments in Britain and Europe and the resurgence of Indian radicalism. Focusing on the period 1917–22 permits us to gain insights into the circumstances affecting the scope of press influence, and to highlight, by m...
|
2022-08-28T22:18:38.279Z
|
155,894,547 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/0010414017710256",
"MAG": "2304708287",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
What determines partisan portfolio allocation in African democracies? Despite the vast literature on government formation in Europe and Latin America, there have been no studies of partisan portfolio allocation in Africa. Although coalition governments are increasingly common in Africa, most studies focus on national leaders, and, thus, we know little about how ministerial posts are divided among cabinet parties. Using an original dataset of coalition governments in Africa from 1990 to 2014, we show that existing theories of partisan portfolio allocation can be successfully applied to African democracies. We find that African parties receive ministerial portfolios in rough proportion to their size, that formateur parties in Africa receive more ministerial portfolios than their European counterparts, and that the “formateur bonus” is greater in Africa’s presidential democracies than in its parliamentary ones. Our analyses suggest that scholars can benefit from paying more attention to both coalition governments and legislatures in their analyses of African politics.
|
2022-09-11T05:18:40.954Z
|
205,477,244 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/bies.201600175",
"MAG": "2561913126",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Mayaro, Oropouche, and O'Nyong‐Nyong share many traits with more prominent arboviruses, like dengue and yellow fever, chikungunya, and Zika. These include severe clinical symptoms, multiple animal hosts, and widespread vector species living in close proximity to human habitats, all of which constitute significant risk factors for more frequent outbreaks in the future, greatly increasing the potential of these hidden enemies to follow Zika and become the next wave of global arboviral threats. Critically, the current dearth of knowledge on these arboviruses might impede the success of future control efforts, including the potential application of Wolbachia pipientis. This bacterium inherently possesses broad anti‐pathogen properties and a means of genetic drive that allows it to eliminate or replace target vector populations. We conclude that control of obscure arboviruses with Wolbachia might be possible, but successful implementation will be critically dependent on the ability to transinfect key vector species.
|
2022-09-16T09:48:00.685Z
|
237,761,945 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.36085/JSAI.V4I2.1513",
"MAG": "3182290366",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Deteksi dini terhadap adanya indikasi pasien dengan gejala COVID-19 perlu dilakukan untuk mengurangi penyebaran virus. Salah satu cara yang dapat dilakukan untuk mendeteksi virus COVID-19 adalah dengan cara mempelajari citra chest x-ray pasien dengan gejala Covid-19. Citra chest x-ray dianggap mampu menggambarkan kondisi paru-paru pasien COVID-19 sebagai alat bantu untuk diagnosa klinis. Penelitian ini mengusulkan pendekatan deep learning berbasis convolutional neural network (CNN) untuk klasifikasi gejala COVID-19 melalui citra chest X-Ray. Evaluasi performa metode yang diusulkan akan menggunakan perhitungan accuracy, precision, recall, f1-score, dan cohens kappa. Penelitian ini menggunakan model CNN dengan 2 lapis layer convolusi dan maxpoling serta fully-connected layer untuk output. Parameter-parameter yang digunakan diantaranya batch_size = 32, epoch = 50, learning_rate = 0.001, dengan optimizer yaitu Adam. Nilai akurasi validasi (val_acc) terbaik diperoleh pada epoch ke-49 dengan nilai 0.9606, nilai loss validasi (val_loss) 0.1471, akurasi training (acc) 0.9405, dan loss training (loss) 0.2558.
|
2022-11-11T07:41:04.580Z
|
120,783,955 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/21642583.2013.839966",
"MAG": "1967643443",
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://www.tandfonline.com/doi/pdf/10.1080/21642583.2013.839966?needAccess=true"
}
|
The authors have introduced optimal disturbance cancellation controllers as a class of controllers minimizing a non-standard quadratic performance index explicitly including disturbances. This paper discusses the application of the classical loop transfer recovery (LTR) technique to the optimal disturbance cancellation controller for step disturbances entering the plant output. The estimation error dynamics of the Kalman filter jointly estimating the plant states and the disturbances is chosen as a target of the LTR design. The weighting coefficient of the performance index is used to recover the target which has guaranteed stability margins as in the standard LTR design. It is shown by a numerical example that the proposed design provides flexible tuning of the disturbance rejection capability with sufficient stability margins.
|
2022-12-10T21:58:17.433Z
|
137,137,103 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1049/MNL.2012.0272",
"MAG": "1526621273",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this Letter, mesoporous γ-aluminas have been successfully synthesised by calcining self-synthesised alumina sol in the presence of room temperature ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate. N2-adsorption measurements presented that the ionic liquid had a significant influence on the textural structure of the final product. Aluminas prepared in this way displayed very rich porosities with large mesopores. As the ionic liquid concentration (IL/Al molar ratio) increased successively from 0 to 0.10, the products showed much larger pore volumes (0.30–1.26 cm3/g) and higher specific surface areas (247–339 m2/g). X-ray diffraction patterns and 27Al magic-angle spinning nuclear magnetic resonance spectra revealed that the self-synthesised alumina sol first transformed into boehmite phase and then became well-crystallised γ-alumina particles by calcining at 500°C.
|
2022-02-09T10:47:20.287Z
|
40,534,337 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1215/03616878-6-3-419",
"MAG": "1971514478",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
As government has attempted to deal with complex social problems, the inevitability of error has become increasingly apparent to students of public policy and implementation. This essay focuses on errors of service, initially drawing on the experience of the Veterans Administration (VA) medical system to explore problems of defining, detecting and correcting such errors when government directly delivers care. It probes the complex blend of errors of liberality and stringency that appeared to be present in the VA during the 1970s, the formidable barriers to error correction, and the steps taken by the VA in response to the problem. Second, the essay examines whether a commercial market strategy, as embodied by Medicare or Medicaid, offers certain advantages in dealing with service errors similar to those confronted by VA. The experience of Medicare and Medicaid casts doubt on whether a commercial market model yields superior results in coping with these kinds of error. Finally, the study points to some more general implications of the VA's experience for discussions of service problems in the health policy arena.
|
2022-07-31T13:33:41.400Z
|
55,342,983 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1515/GMJ.2004.613",
"MAG": "2138187468",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract Border homology and cohomology groups of pairs of uniform spaces are defined and studied. These groups give an intrinsic characterization of Čech type homology and cohomology groups of the remainder of a uniform space.
|
2022-09-01T12:48:22.519Z
|
144,570,084 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3406/DS.1977.952",
"MAG": "2065462748",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
S'il est un trait caracteristique de notre epoque, c'est qu'on denonce toujours la violence sans reellement la definir et qu'on met sous ce terme des phenomenes pour le moins heterogenes. Il en ressort que la violence est le mal social, qu'elle est transgression non seulement de lois ecrites mais encore de normes profondes d'une socialite consideree comme valeur positive, du consensus social, tabou dans nos societes democratiques. Faute d'une definition prealable, qui se devrait d'etre exhaustive, du bien et du mal, la definition de la violence, son etude scientifique restent impossibles. Ce qui, en revanche, est objectivable et etudiable, c'est la proliferation de la violence, le volume croissant du discours sur elle, de sa denonciation. Les auteurs, a propos d'une situation de violence collective, mettent en evidence l'utilisation par l'Etat de l'etiquette violence comme arme ideologique et, dans le public, des attitudes qui vont de l'incomprehension radicale a une certaine comprehension en passant par la victimisation du violent et la fascination par la violence. Toutes ces attitudes sont ambivalentes. La valorisation de la violence existe mais, refoulee, elle n'apparait qu'indirectement.
|
2022-09-13T17:01:23.620Z
|
25,562,771 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/CCD.1810080108",
"MAG": "2021467797",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This prospective study was performed to determine whether complications that occur immediately before or after the time of scheduled catheterization are as much disease-related as procedure-related. During 24 months all complications associated with 1,606 diagnostic cardiac catheterizations were recorded if they occurred from 24 hours before the time the procedure was scheduled to 72 hours later, longer if complications were clearly procedure-related. Pseudo complications are spontaneous medical or surgical incidents that occur during the 24-hour period before catheterization is scheduled to be performed. Procedure-related complications are incidents that occur during or after the catheterization procedure. There were 13 (0.81%) procedure-related complications but not deaths. There were 13 (0.81%) pseudo complications including 4 (0.24%) deaths. All complications were similar in nature except for 3 instances of vascular injury, which were procedure-related. Pseudo complications occur as commonly as procedure-related complications and at times are more severe. Complications occurring before catheterization are related to the underlying disease process and not medical intervention. It is likely that similar disease-caused incidents occur after a catheterization and are not necessarily procedure-related.
|
2022-09-15T02:10:20.549Z
|
53,305,207 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4103/0366-6999.245158",
"MAG": "2900044463",
"PubMedCentral": "6247592"
},
"license": "CCBYNCND",
"status": "GOLD",
"url": "https://doi.org/10.4103/0366-6999.245158"
}
|
Background: Focal segmental glomerulosclerosis (FSGS) is a kidney disease that is commonly associated with proteinuria and the progressive loss of renal function, which is characterized by podocyte injury and the depletion and collapse of glomerular capillary segments. The pathogenesis of FSGS has not been completely elucidated; however, recent advances in molecular genetics have provided increasing evidence that podocyte structural and functional disruption is central to FSGS pathogenesis. Here, we identified a patient with FSGS and aimed to characterize the pathogenic gene and verify its mechanism. Methods: Using next-generation sequencing and Sanger sequencing, we screened the causative gene that was linked to FSGS in this study. The patient's total blood RNA was extracted to validate the messenger RNA (mRNA) expression of coenzyme Q10 monooxygenase 6 (COQ6) and validated it by immunohistochemistry. COQ6 knockdown in podocytes was performed in vitro with small interfering RNA, and then, F-actin was determined using immunofluorescence staining. Cell apoptosis was evaluated by flow cytometry, the expression of active caspase-3 was determined by Western blot, and mitochondrial function was detected by MitoSOX. Results: Using whole-exome sequencing and Sanger sequencing, we screened a new causative gene, COQ6, NM_182480: exon1: c.G41A: p.W14X. The mRNA expression of COQ6 in the proband showed decreased. Moreover, the expression of COQ6, which was validated by immunohistochemistry, also had the same change in the proband. Finally, we focused on the COQ6 gene to clarify the mechanism of podocyte injury. Flow cytometry showed significantly increased in apoptotic podocytes, and Western blotting showed increases in active caspase-3 in si-COQ6 podocytes. Meanwhile, reactive oxygen species (ROS) levels were increased and F-actin immunofluorescence was irregularly distributed in the si-COQ6 group. Conclusions: This study reported a possible mechanism for FSGS and suggested that a new mutation in COQ6, which could cause respiratory chain defect, increase the generation of ROS, destroy the podocyte cytoskeleton, and induce apoptosis. It provides basic theoretical basis for the screening of FSGS in the future.
|
2022-11-17T02:41:18.518Z
|
237,216,236 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1176/appi.ajp.2021.20081202",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
OBJECTIVE
The authors sought to estimate the prevalence of past-12-month and lifetime cannabis use and cannabis use disorder among U.S. veterans; to describe demographic, substance use disorder, and psychiatric disorder correlates of nonmedical cannabis use and cannabis use disorder; and to explore differences in cannabis use and cannabis use disorder prevalence among veterans in states with and without medical marijuana laws.
METHODS
Participants were 3,119 respondents in the 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions-III (NESARC-III) who identified as U.S. veterans. Weighted prevalences were calculated. Logistic regression analyses tested associations of nonmedical cannabis use and cannabis use disorder with demographic and clinical correlates and examined whether prevalence differed by state legalization status.
RESULTS
The prevalences of any past-12-month cannabis use and cannabis use disorder were 7.3% and 1.8%, respectively. Lifetime prevalences were 32.5% and 5.7%, respectively. Past-12-month and lifetime cannabis use disorder prevalence estimates among nonmedical cannabis users were 24.4% and 17.4%, respectively. Sociodemographic correlates of nonmedical cannabis use and use disorder included younger age, male gender, being unmarried, lower income, and residing in a state with medical marijuana laws. Nonmedical cannabis use and use disorder were associated with most psychiatric and substance use disorders examined.
CONCLUSIONS
Among veterans, the odds of nonmedical cannabis use and use disorder were elevated among vulnerable subgroups, including those with lower income or psychiatric disorders and among survey participants residing in states with medical marijuana laws. The study findings highlight the need for clinical attention (e.g., screening, assessment) and ongoing monitoring among veterans in the context of increasing legalization of cannabis.
|
2022-12-12T19:36:34.322Z
|
10,909,014 |
{
"externalids": {
"ACL": null,
"ArXiv": "1009.5745",
"DOI": "10.1214/09-AOAS264",
"MAG": "2072849899",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We present a flexible branching process model for cell population dynamics in synchrony/time-series experiments used to study important cellular processes. Its formulation is constructive, based on an accounting of the unique cohorts in the population as they arise and evolve over time, allowing it to be written in closed form. The model can attribute effects to subsets of the population, providing flexibility not available using the models historically applied to these populations. It provides a tool for in silico synchronization of the population and can be used to deconvolve population-level experimental measurements, such as temporal expression profiles. It also allows for the direct comparison of assay measurements made from multiple experiments. The model can be fit either to budding index or DNA content measurements, or both, and is easily adaptable to new forms of data. The ability to use DNA content data makes the model applicable to almost any organism. We describe the model and illustrate its utility and flexibility in a study of cell cycle progression in the yeast Saccharomyces cerevisiae.
|
2022-12-15T00:18:41.506Z
|
11,894,730 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1152/JN.1995.74.3.1343",
"MAG": "2463041108",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
1. In the present study we investigate the expression of a persistent Na+ conductance (INaP) in identified medium-sized neostriatal neurons. Nomarski optics and infrared videomicroscopy were used for cell visualization and identification in thick slices (350 microns). Current- and voltage-clamp recordings were obtained utilizing whole cell patch-clamp methodology. 2. Application of depolarizing ramp voltage commands from a holding potential of -70 mV induced a slow, noninactivating inward current that occurred before and independent of the rapidly inactivating sodium current that subserves action potential generation. INaP began to activate at potentials less negative than -70 mV and peaked at -34 +/- 1 (SE) mV. Its average peak amplitude was -100 +/- 17 pA. INaP was abolished by tetrodotoxin (TTX, 0.5-1 microM) or an Na(+)-free solution. In contrast, it was not affected by Ca2+ channel blockers. Depolarizing ramp commands also induced tetraethylammonium-sensitive outward currents. 3. Dopamine (DA) (20-100 microM) produced a significant reduction of INaP. 4. These results demonstrate the existence of a TTX-sensitive persistent Na+ conductance in medium-sized neostriatal neurons. This conductance is modulated by DA and could play a role in the generation of rhythmic oscillations and in supporting repetitive firing.
|
2022-12-20T10:13:55.767Z
|
115,265,289 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1515/emj-2017-0022",
"MAG": "2766193681",
"PubMedCentral": null
},
"license": "CCBYNCND",
"status": "GOLD",
"url": "https://content.sciendo.com/downloadpdf/journals/emj/9/3/article-p10.pdf"
}
|
Abstract The oil and gas industry nowadays is challenged by dealing with nonconventional reserves and offshore environments. Decision-making associated with projects in the petroleum sector has to handle various technological issues, risks, and uncertainty. The Smart Fields approach was introduced to cope with complicated production conditions and make the production of hydrocarbons economically efficient. A significant part of this approach is proactive planning which implies taking into account the uncertainty, or lack of knowledge of the recoverable reserves, future hydrocarbon prices and various operational issues inherent in the projects. In this study, a multi-stage stochastic programming approach is employed to cover the relevant engineering issues of oilfield development and petroleum production while addressing the geophysical uncertainty related to the developed deposit. The proposed model covers such aspects as well drilling, gathering pipeline infrastructure planning, capacity selection for the infrastructure and the processing units, as well as planning the production operations with consideration of artificial lift efficiency. The model aims to optimise the entire field lifecycle, given the chosen planning criterion, that is an economic criterion of the project’s net present value. The contribution of the developed model to the area of planning in the petroleum industry is the detailed consideration of the technology: the flows and pressures in the planned infrastructure, reservoir behaviour, and the artificial lift performance. The goal of including these technological details is to apprehend the economic tradeoff between investments, operating costs and the prospective revenues, given the lack of knowledge of the geophysical properties of the developed deposit. The stochastic modelling implemented in this study is relevant to the development projects in nonconventional environments, where several deposits of various sizes are present; however, not each deposit's properties get to be studied in detail.
|
2022-12-23T02:07:32.674Z
|
75,759,280 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5505/ABANTMEDJ.2015.82473",
"MAG": "2332660315",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Amac: Gunumuzde Hepatit A virus (HAV) ile karsilasma cocukluktan ileri yaslara dogru kaymakta ve eriskilerde ciddi klinik tablolara yol acmaktadir. Bu calismadaki amacimiz da Istanbul'da farkli eriskin yas gruplari arasinda Hepatit A (HAV) seroprevalansini arastirmaktir. Yontem: Bu calismada 30 Ekim 2011 ve 31 Aralik 2013 tarihleri arasinda Bezmialem Vakif Universitesi Tip Fakultesi hastanesi'ne basvuran hastalarin anti-HAV IgG seropozitifligi retrospektif olarak degerlendirildi. Anti-HAV IgG testi kemiluminesans immunassay yontemi (Cobas 6000, Roche, Almanya) ile calisildi. Bulgular: Calismaya eriskin yas gruplarinda 390'i (%49.5) erkek ve 397'si (%50.4) kadin olmak uzere toplam 787 hasta alindi. Hastalardan alinan kan orneklerinin 630'unda (%80) Anti-HAV IgG pozitif bulundu. Anti HAV IgG seropozitif kisilerin 318'i (%50.5) erkek, 312'si (%49.5) kadindi. Calismada 17-27 eriskin yas gruplari arasinda %57.2 oraninda seronegatiflik saptandi. Sonuc: HAV enfeksiyonlari eriskin yaslarda cocuklardakinden daha ciddi seyirli olmaktadir. Biz bu calismada 17-27 yas grubundaki genc eriskinlerde HAV enfeksiyonlarina karsi yuksek oranda duyarlilik saptadik. Bu nedenle genc eriskin yas grubundaki bireylerin de rutin asilama semasi icerisinde yer almasini oneriyoruz. Objective: Currently incidence of hepatitis A is shifting to an advanced age and the virus seem to cause a significant clinical disease at advanced ages. There is a considerable segment of population susceptible to H AV. The aim of the study was to investigate the seroprevalance of hepatitis A for adults age groups. Method: In this study, the seropositivity of hepatitis A infection of patients who had attended to Bezmialem Vakif University Hospital were retrospectively evaluated between 30 October 2011 and 31 December 2013. Anti-HAV IgG was tested by chemiluminescence method (Cobas 6000, Roche, Almanya). Results: A total of 787 adult patients, 390 (49.5%) male and 397 (50.5%) female, were included in the study. Anti HAV IgG positivity was detected in 630 (80.0%) patients. Of the anti-HAV IgG positive patients, 318 (50.5%) were male, and 312 (49.5%) were female. Anti-HAV IgG seropositivity increased with age. However, 57.2% of the patients in 17- 27 years age group were still anti-HAV IgG negative. Conclusion: HAV infections in adult patients is more severe than in children. In our study high seronegativity against to HAV infection in young adults were noticed. Therefore, we recommend that subjects who are susceptible against to HAV infections in the 17-27 age group might be included in the routine immunization schedule.
|
2022-01-27T08:06:45.560Z
|
214,321,691 |
{
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"ArXiv": null,
"DOI": "10.24176/bmaj.v2i2.3804",
"MAG": "3002448531",
"PubMedCentral": null
},
"license": "CCBYSA",
"status": "GOLD",
"url": "https://jurnal.umk.ac.id/index.php/bmaj/article/download/3804/1804"
}
|
This study aims to determine the effect of Return on Assets (ROA), Liquidity Funding Ratio (LFR), Non Performing Loan (NPL) and Capital Adequacy Ratio (CAR) on lending. The objects of this research are PT Bank Negara Indonesia (Persero) Tbk, PT Bank Rakyat Indonesia (Persero) Tbk, PT Bank Tabungan Negara (Persero) Tbk, and PT Bank Mandiri (Persero). This research was conducted during the period 2013 - 2017. The method of analysis used in this study is multiple linear regression. The results showed that ROA, LFR, and CAR were negatively related to lending. Whereas NPL has a positive effect on lending. The implication of the research results is that in order to increase lending, it must reduce ROA, LFR and CAR and increase the NPL value.
|
2022-02-08T02:31:03.106Z
|
85,356,984 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1142/S0218957702000897",
"MAG": "2063008749",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The degeneration of intervertebral discs is one of the pathophysiological causes of lowback pain which has been seriously disturbing human health at the present, No clinical approach can provide prophylaxis or treatment for disc degeneration. But people are now thinking about gene transfer for the prevention of disc degeneration to reduce the incidence of back pain. This idea originated from the development of molecular biology; the deep understanding of the physiology and biochemistry of the intervertebral discs, and the growing scope of gene therapy. The increasing publications on gene therapy for disc degeneration have shown us the future of this research field, and revealed possible difficulties in the process of the study. This article focuses on several important aspects of gene therapy for disc degeneration.
|
2022-09-07T05:35:23.122Z
|
39,094,511 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1104/PP.14.2.377",
"MAG": "2062778429",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Sanguinaria canadensis L. is reported by Taubenhaus and Ezekiel (6) to be highly resistant to the Phymatotrichum root rot. It has long been of interest on account of its alkaloidal content. Dana (1) isolated the alkaloid, sanguinarine, from this species in 1827. Since that time chelerythrine, protopine, and ?and ?-homochelidonine have been isolated from the rhizome and roots (5). For these reasons this plant seems an exceptionally good object for investigation in connection with the theory of alkaloids as a possible factor in the resistance of some plants to Phymatotrichum omnivorum (Shear) Duggar (3, 4). In the work reported here certain alkaloids were isolated from crude extracts of roots and rhizomes of S. canadensis and incorporated in various concentrations into the substrates ordinarily used for the pure culture of P. omnivorum. The effect of these substances on the growth and development of the fungus are discussed.
|
2022-11-11T07:34:34.281Z
|
133,894,413 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21307/ACEE-2017-012",
"MAG": "2891182495",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract Poland was collected 9.6 million tonnes of municipal waste in 2012 (plus update). The primary method of dealing with municipal waste collected was organized depositing them in landfills. Mixed municipal waste accounted for almost 90% of all municipal waste collected (8.6 million tonnes). Poland is one of the lowest in the EU in terms of the use energy from waste. The analysis of complex real-time physical processes, thermal waste processing and determination of their optimal parameters requires a series of studies and detailed analysis of constituents of elementary processes (degassing, gasification, combustion). The apparent simplicity of process implementation often determines knowledge and practical experience required in their application. The relationships known and used in the design usually concern a homogeneous substance (conventional fuels) and do not correspond to the conditions and needs of processing of complex substances of a different chemical composition and physic-chemical properties. Due to the complexity of the real process, numerical calculations were carried out to simulate the operation of a waste incineration technology. For this purpose a mathematical model was developed as well as its implementation in the programming code of a high-level language. In order to calibrate and validate the model (compliance with the real process) calculations were performed on a specially prepared set of validation data. The authors analysed a group of processes that belong to one technology, looking into connections between degassing, gasification and combustion of carbonized substances in pure oxygen.
|
2022-12-03T10:35:05.380Z
|
219,442,021 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/adom.202000036",
"MAG": "3028477763",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Understanding of charge trapping processes in halide perovskites is vital to further improve performance of perovskite optoelectronic devices such as solar cells, photodetectors, and LEDs. In this work, transient photocurrent, time‐delayed collection field and transient fluorescence techniques along with numerical simulations are combined to address charge carrier trapping processes during their lateral motion in prototypical methylammonium lead iodide perovskite films formed on interdigitated electrodes. Carrier mobility decreases on hundreds of ns timescale, and its rate depends on the motion character—it is faster when charge carriers drift in the electric field and slower when the motion is caused by diffusion only. This difference becomes particularly evident at low temperatures. Based on the time‐delayed collection field data and carrier motion modelling results, it is demonstrated that the rapid mobility decay at low temperatures is mainly caused by the energy barriers, most likely formed at crystallite boundaries. Even though these barriers are surmountable at room temperature, they still play a major role in determining carrier mobility and diffusion rates. Suggested concept of the potential barriers moves beyond the conventional understanding of carrier mobility, diffusion, and recombination processes in hybrid perovskites.
|
2022-12-11T07:37:56.905Z
|
41,642,807 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1126/science.1194923",
"MAG": "2073733082",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A return to traditional screening methods has rapidly produced a candidate malaria drug. Every so often, the tide turns in a field of science. In malaria research, for a while an approach called “rational design” held sway, with great optimism that new drugs would emerge from understanding the biology of the malaria parasite at the molecular level. On page 1175 of this issue, however, Rottmann et al. (1) take our thinking back up to the level of the parasite.
|
2022-12-16T01:42:36.037Z
|
62,227,017 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/CCECE.2003.1226152",
"MAG": "2098871488",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper presents a methodology that provides decision support for the iterative development of requirements engineering (RE) processes, which is a significant step towards bridging the gap between RE theory and practice. The methodology presented is based on a multicriteria decision making model C. Zopounidis et al. (2000) and an N-dimensional process development methodology A. Eberlein et al. (2001) in order to provide support for requirements engineers to tailor/define RE process models and to select the most appropriate RE techniques for a specific project. Currently available RE models and techniques are stored in a RE process knowledge base (REPKB) which is the basis for decision support. The general theory behind this methodology is described and an algorithm for the implementation of our decision support is discussed in the paper. Preliminary results suggest that the framework makes a useful contribution to requirements engineering by helping requirements engineers to develop better RE processes.
|
2022-12-15T07:40:23.874Z
|
54,909,991 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1049/EL.2009.2036",
"MAG": "1997393698",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
An SOA-based all-optical high-speed Mach-Zehnder interferometer exclusive-OR (XOR) gate fabricated in a silica III-V hybrid-integration technology platform is demonstrated. The device includes integrated time delays for rapid diffcrential operation as well as integrated phase shifters for fine tuning of power splitters and interferometer bias enabling highly optimiscd XOR gate operation. XOR functionality is verified through inspection of the output pulse sequence and the carrier-suppressed output spectrum. A 2.3 dB penalty for a 42.6 Gbit/s RZ-OOK signal at a 10 -9 bit error rate is observed.
|
2022-12-22T16:03:59.865Z
|
124,864,583 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/10407782.2015.1069675",
"MAG": "2229987694",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
ABSTRACT This study aims to investigate the influence of a conveyor angle on capillary flow during the wave soldering process. Finite volume-based simulation is utilized to study the capillary flow of molten solder. Molten solder filling through capillary action of a pin-through-hole (PTH) is considered at different conveyor angles (i.e., 0–10°). Two PTH positions, namely, center (r/R = 0.2) and offset (r/R = 0.6), are investigated. The effects of a conveyor angle on molten solder filling volume, time, pressure profile, and velocity vector are numerically analyzed.
|
2022-12-24T18:07:04.115Z
|
250,953,057 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/jfbc.14333",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Hepatocellular carcinoma is a common cancer type, especially among men. Although cucurbitacin I (CuI), widely found in plants belonging to the Ecballium elaterium (E. L) plant family, has been shown to have antitumorigenic properties in many cancer types, its anticancer effect, molecular mechanism, and apoptotic effect mediated by signal pathways on hepatocellular carcinoma have not been fully clarified. In the present study, we investigated the anticancer effect of CuI treated at different doses on the HepG2 cell line and the underlying mechanism in vitro. High-purity CuI was obtained from the E. elaterium plant with the aid of HPLC. The effects of this substance on the viability of cells were studied by the MTT assay. The effects of CuI on cell cycle progression and apoptosis were studied with flow cytometry. DNA breaks were analyzed by the Comet assay method. The proteins and genes involved in the JAK/STAT3, MAPK/ERK, and AKT/mTOR signaling pathways were investigated using Western blot and qRT-PCR, respectively. The results of this study demonstrated that CuI significantly reduced HepG2 cell growth in vitro, induced antiproliferation, and G2/M phase of the cell cycle was interrupted. PRACTICAL APPLICATIONS: CuI administration was shown to downregulate the levels of proteins in the PI3K/AKT/mTOR, MAPK, and JAK2/STAT3 cascades in HepG2 cells. CuI also reduced the expression of MAPK, STAT3, mTOR, JAK2, and Akt genes in different concentrations. DNA breaks are formed as a result of this effect. CuI, by reducing cell proliferation and promoting apoptosis, was found to have potential as a chemotherapeutic agent of hepatocellular carcinoma.
|
2022-12-30T18:07:58.293Z
|
23,680,499 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/RSETE.2012.6260538",
"MAG": "2038698770",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Based on data from the China new-generation weather radar (CINRAD), a comprehensive study is performed of three heavy snow processes in the south of Northeast China during 2004-2007. Results show that the heavy snow in the south of Northeast China (HSSNC) is characterized as follows: 1) the area of echo over 18 dBZ is larger than 5×103km2 in the CINRAD base reflectivity product and hourly snowfall is positively correlated with the snow echo; 2) there is large gradient of echo intensity at the boundary between rainfall and snowfall; 3) the echo intensity of the study snow is usually less than 30 dBZ, and the snow is mainly made up of liquid precipitation particles or melting solid precipitation particles when the intensity is larger than 40 dBZ; 4) the precipitation features and rain-snow boundary can be distinguished according to the echo intensity and its gradient, and the radiosonde and surface temperature records, which is meaningful to the forecast. At the beginning of heavy snowfall process, the zero line is clear with a structure like "S", which is the structure of warm advection wind. At the mature stage, the recombination wind field which is superposition of warm advection and large scale convergence predicts that the echo would be strongest. For the products of wind profile, the low-level water vapour transport has a direct intuitive significance for the change of precipitation intensity. During the heavy snow processes, the height of the echo top (ET) is low, slightly changing and relatively even, with its area a little smaller than that of the base intensity product. Meanwhile, products of the vertically integrated liquid (VIL) underestimate evidently the snowfall, and its area is much smaller than area of base reflectivity. Doppler radar detection and estimation of the hourly snowfall by optimization method on the extremely heavy snow on March 4th, 2007 has the similar trend with the observation, showing that the samples 50-100 km away from the radar are most in accord with the observation, and that up to 72% of the samples within a distance of 100 km from the radar overvalue the snowfall, which should be noted and revised in operational application.
|
2022-02-12T19:05:53.671Z
|
234,068,740 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.32749/NUCLEODOCONHECIMENTO.COM.BR/SAUDE/PREVENCAO-DA-PREMATURIDADE",
"MAG": "3128502410",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Prematuridade é um problema de saúde pública e resulta de diversas origens, sendo a hipertensão gestacional o fator de risco mais importante no mundo e no Brasil. Ela é a causadora de aproximadamente 90% dos casos. Esse fato mostra a importância do enfermeiro na prevenção do parto prematuro em gestantes hipertensas. Objetivo: Revisar na literatura o papel do enfermeiro na assistência à gestante hipertensa, evitando a prematuridade. Sendo assim, realizamos uma revisão sistemática com abordagem qualitativa. Os artigos da revisão foram obtidos das fontes: LILACS, Google acadêmico, PubMed, SciELO, Manuais do Ministério da Saúde e livros. O material coletado foi publicado no período que compreende de 2007 a 2017. Entraram no artigo 62 publicações relacionadas ao tema. Os resultados mostram que gestantes com hipertensão arterial são mais propensas a terem parto prematuro, com menos de 37 semanas de gestação. A prematuridade provoca várias repercussões para a mãe e para os recém-nascidos. O enfermeiro desempenha importante papel na prevenção da prematuridade. Os cuidados de enfermagem que contribuem para a redução do parto pré-termo são: monitoração da pressão arterial da gestante, orientação para uma alimentação saudável, controle do peso da gestante, frequente avaliação da vitalidade fetal e a avaliação da dinâmica uterina de acordo com a idade gestacional.
|
2022-06-07T04:32:59.785Z
|
130,720,338 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4000/chinaperspectives.4303",
"MAG": "122893345",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://journals.openedition.org/chinaperspectives/pdf/4303"
}
|
This fascinating book recounts the evolution of population control policies applied from the foundation of the People’s Republic in 1949 up to the present. The author bases her research on the political origins of birth control as well as its crucial role in China’s quest for modernity. In contrast with the wealth of existing literature on the subject, White’s main emphasis is not on the sociological, demographic, or anthropological aspects, but on the political dimension: how and why was the...
|
2022-09-13T04:13:39.663Z
|
137,910,744 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ECTC.2003.1216255",
"MAG": "2136355324",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This project set out to evaluate the critical issues of toxicity and public health effects, material availability, and the environmental impacts of raw material extraction and metal finishing, with the goal of using environmental impact as a factor in selecting feasible lead-free alloys.
|
2022-09-12T02:33:59.862Z
|
190,694,297 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4000/VERTIGO.16413",
"MAG": "2152994655",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
La gestion des dechets a Buenos Aires, metropole argentine de 14,5 millions d’habitants, a connu des reconfigurations importantes depuis les annees 2000. Les revendications citoyennes en faveur d’une gestion plus respectueuse de l’environnement emergent en pleine crise de 2001, et ne sont pas sans rappeler les debuts du systeme sociotechnique instaure en 1977. Au lendemain du coup d’Etat militaire, le gouvernement de facto lancait l’un des projets d’amenagement du territoire metropolitain des plus amples. Les dechets participent durant plusieurs decennies a la construction physique des territoires, avant que les accusations d’atteinte a la securite sanitaire des riverains n’entravent ce processus. L’article part de l’hypothese que ces phases de rupture et de reorganisation de la gestion des dechets sont liees aux dynamiques spatiales et temporelles de la metropole. Les crises permettent donc de comprendre l’evolution differenciee d’une agglomeration inegalement reliee au reste du monde, mais dependante des recommandations internationales pour planifier son devenir. Dans le but de montrer ce que le temps « fait » a l’action publique territoriale des dechets, le travail se divise en trois parties. La premiere presente la construction du cinturon ecologico en 1977. La seconde montre comment ce dispositif est ebranle par les changements des territoires metropolitains, du paradigme environnemental et des modalites de la gouvernance territoriale. La derniere presente les interrogations inedites que suscitent les transformations mises en œuvre suite a cette crise. Elles portent sur la maniere de « bien faire » dans le futur, tout en invitant a tirer des enseignements du passe.
|
2022-11-04T01:09:14.901Z
|
119,208,975 |
{
"externalids": {
"ACL": null,
"ArXiv": "1311.4511",
"DOI": "10.1088/1748-0221/9/01/P01005",
"MAG": "2006896793",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A novel light detection scheme has been tested for use in medium-pressure gas TPCs, in view of rare events searches in low energy particle physics. It has the advantage of minimal interference with the ionization collection system, used for track imaging. It provides an absolute time reference, which allows an absolute determination of the Z coordinate of events, along the direction of the drift field. This makes possible a fiducial cut along the Z-axis, allowing to reduce the background from the ends of the drift volume.
|
2022-12-11T09:11:24.666Z
|
119,366,703 |
{
"externalids": {
"ACL": null,
"ArXiv": "1804.10311",
"DOI": "10.1103/PHYSREVMATERIALS.2.053603",
"MAG": "2962999429",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The beryllides MBe13 (M = rare earths and actinides) crystallize in a NaZn13-type cubic structure, which can be categorized as a cage-structured compound. In this study, powder X-ray diffraction measurements have been performed on LaBe13, SmBe13, and UBe13 in the temperature range between 7 and 300 K in order to investigate their crystallographic characteristics systematically. They keep the NaZn13-type cubic structure down to the lowest temperature. We estimated their Debye temperature to be 600 - 750 K from analyses of the temperature dependence of a lattice parameter, being in good agreement with the values reported previously. Rietveld refinements on the obtained powder patterns revealed that the M atom in the 8a site is located in an almost ideal snub cube formed by 24 Be atoms in the 96i site, whose caged structure is unchanged even at the low temperatures. In addition, it is argued from the temperature variation of an isotropic mean-square displacement parameter that the MBe13 compounds commonly have a low-energy phonon mode, which can be described by a model assuming an Einstein oscillation of the M atom with a characteristic temperature of ~ 160 K.
|
2022-12-12T18:40:35.159Z
|
21,866,619 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/11024159950188547",
"MAG": "2167882534",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://academic.oup.com/ejs/article-pdf/165/Supplement_9/45/34932826/ejs627.pdf"
}
|
Mediastinitis after cardiac surgery is a rare but life-threatening complication. The omentum is particularly well-suited for the treatment of severe sternal wound infections, because it contains large numbers of immunologically active cells that seem to be responsible for the high anti-infective activity of the omentum. The additional transposition of parts of the greater omentum into the thorax was discussed in the development of a protocol for the planned ATMI study, which will investigate the effectiveness of immunoglobulins in the treatment of severe sternal wound infections that require reoperation. We present two different points of view about whether omentopexy should be allowed within the study design.
|
2022-12-16T15:27:44.185Z
|
12,197,375 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/HUMANOIDS.2016.7803383",
"MAG": "2568614793",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this paper, we address the issue of whole-body compliance with hierarchical force propagation for omnidirectional mobile manipulators. Using the multimodal tactile feedback (force and proximity) provided by an artificial skin, our objective is to generate prioritized compliant behaviors in response to multicontact physical interactions between a mobile robot and its external environment. To be more specific we want the force components which cannot be properly propagated using upper-limbs, to be projected onto the mobile base in order to generate suitable compliant motions. Using Quadratic Programming (QP), we propose a general method allowing to properly estimate and propagate these force components while respecting the robot physical constraints. In this way, a robust human-like whole-body compliance can be achieved. We finally test and validate our method on a complex robot system.
|
2022-12-18T04:55:36.822Z
|
84,171,589 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3354/MEPS07070",
"MAG": "2325014788",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A key requirement for implementing ecosystembased management is to obtain timely information on significant fluctuations in the ecosystem (Botsford et al. 1997). However, obtaining all necessary information about physical and biological changes at appropriate temporal and spatial scales is a daunting task. Intuitively, one might assume that physical data are more important for the interpretation of ecosystem changes than biological data, but analyses of time series data suggest otherwise: physical data are more erratic and
|
2022-12-18T22:38:56.396Z
|
40,691,584 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1136/GUT.25.12.1432",
"MAG": "1981392303",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Endoscopic treatment of bile duct stones: (apples and oranges) and lychees? SIR,-We read Dr Peter Cotton's well balanced editorial on endoscopic sphincterotomy for common bile duct stones with interest.' While we agree that there is no place for any surgical complacency with the nationwide incidence of retained stones remaining in the region of 10%, the benefit of operative choledochoscopy is perhaps less than fairly treated. He quotes Rattner with an incidence of 6% and Feliciano3 with an incidence of 8.9% retained stones. Do these two series represent some lychees among his apples and oranges? Rattner reported eight retained stones in 144 patients 5-6, not 6%. In two of these patients, however, the stones were visualised with the choledochoscope but were not removed; the failure rate of choledochoscopy was thus six of 144 patients 4.2%. Feliciano found seven patients with retained stones in 79 patients 8.9%. We have recently reviewed the published literature on choledochoscopy, with clarification of the number of stone positive bile duct explorations by correspondence with the authors where necessary. In a total of 37 reports on operative choledochoscopy retained stones occurred in 99 of 3159 patients less than 3*1%. Feliciano's report was one of only five papers in which the incidence of retained stones exceeded 5%.4 Few surgeons resent the contribution that endoscopic sphincterotomy has made to the care of patients with common bile duct stones and the early experience of dealing with symptomatic common duct stones endoscopically in patients with gall bladders in situ is of great interest. Although these patients may now represent 50% of patients undergoing endoscopic sphincterotomy they do, of course, represent only a proportion of the 12% patients with gall stone disease who have stones in the bile duct as well as the gall bladder. We entirely agree that endoscopic treatment should be used more widely. The weight of evidence that has amassed in favour of choledochoscopy compared with conventional bile duct exploration indicates the pressing need for routine endoscopy at the time of common bile duct exploration rather than afterwards.
|
2022-12-23T02:00:26.119Z
|
235,279,535 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/1755-1315/769/3/032083",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://doi.org/10.1088/1755-1315/769/3/032083"
}
|
Longitudinal profiled steel plate (LP steel plate) is a green steel product, which is widely used in steel structure fields such as ships and bridges. In this paper, the effect of Heat-treatment Online Process (HOP) on microstructure and uniformity of LP steel plate was investigated by thermal simulation test. The results show that the microstructure consists of grain boundary allotriomorphs, upper bainite, acicular ferrite and carbon-enriched austenite at 550°C. During the isothermal process, the austenite transforms into bainite, the acicular ferrite grows and coarsens, and the bainite laths gradually “fuse” to form large granular bainite. After online tempering at 650°C, the austenite transforms into ferrite, acicular ferrite and bainite undergo tempering transformation, in which the size of bainite decreases and some acicular ferrite transforms into polygonal ferrite. After tempering at different temperatures (650∼750°C), the microstructure consists of grain boundary allotriomorphs, coarsened acicular ferrite and a small amount of granular bainite. With the increase of tempering temperature, the tempering transformation degree of acicular ferrite and bainite is intensified. Elongated carbides at grain boundaries become short rods and particles, which decreases the size and aggregation of carbides. Compared with the traditional process, the difference of microstructure and hardness of LP steel plate with different thickness specifications after HOP process is reduced, and the hardness is higher, which is beneficial to improve the performance and uniformity.
|
2022-02-25T01:05:40.721Z
|
26,931,896 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1142/S0192415X99000318",
"MAG": "2008290680",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Twenty threatened abortive patients in the 7-8th week of gestation were treated with a classical miscarriage prevention tea (Shou-Tai-Tang) combined with psychological consultation. All of the patients had a history of unexplained recurrent abortions. This treatment succeeded in sixteen out of 20 patients. The plasma concentrations of beta-endorphin (beta-EP), gonadotrophin releasing hormone (GnRH), human chorionic gonadotrophin (hCG), and progesterone (P4) were measured by radioimmunoassay before and after treatment. Compared to control subjects, beta-EP levels were significantly higher, while GnRH, hCG, and P4 were lower than before treatment. Concentrations of these peptides/hormones returned to normal ranges after successful treatment.
|
2022-07-31T02:17:48.862Z
|
126,040,376 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.28991/CEJ-030983",
"MAG": "2786109728",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this paper, four known analytical methods including Wang (1993), Penzien (2000), Park et al. (2009), and Bobet (2010) were Evaluated based on seismic design of circular tunnel in Tehran Metro Line 6. For this purpose, a quasi-static numerical method was applied in the framework of finite difference method (FDM) under the same assumptions. In both numerical and analytical methods, to consider the nonlinear behavior of soil, linear equivalent properties of soil derived from ground analysis were incorporated in EERA software. obtained results shown that the Park’s analytical solution under various conditions of interaction between the tunnel lining and soil provides very close results to the of numerical modeling. Afterward, a comprehensive validation was performed to assess the impact of the rigidity of the surrounding ground and the maximum shear strain value. In this regard, several earthquake scenarios with different shear wave rates were used to achieve a wide range of flexibility ratio (F) and maximum shear strain. The results showed a significant difference between the results of Penzine’s and Bobet’s methods under the no-slip conditions and those of numerical analyses for a certain range of flexibility and shear strain ratios. In the final part of the paper, a quasi-static seismic numerical study was performed under realistic soil-structure interaction conditions to illustrate the importance of the actual interaction between the tunnel lining and surrounding soil. The results showed that the actual interaction conditions governing estimation of the axial force play a very important role. Also, it was found that Park’s solution, because of the ability to consider the slip at the interface provides results very close to those of the numerical modeling. In contrast, one of the serious limitations of the other analytical methods is their inability to simulate the slip interface between the tunnel lining and soil.
|
2022-12-09T13:48:30.250Z
|
87,277,058 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1093/EE/13.1.1",
"MAG": "2316042797",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The Spruce Budworm Technology Transfer Program for the Lake States Region was part of the Canada-United States Spruce Budworms Program. The goal of our technology transfer project was to provide land managers in the Lake States with pest management information on the spruce budworm. We summarize our technology transfer program, give examples of the development of four information packages, and discuss important factors that help technology transfer efforts in forest pest management.
|
2022-09-16T03:06:50.977Z
|
149,510,724 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1075/LPLP.00022.PYM",
"MAG": "2809925149",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Mediation strategies are deployed when people use translation, interpreting, lingua francas, intercomprehension, language learning, or any combination of these to communicate in situations where there is more than one language in play. Such choices can be seen as enacting trade-offs between the goals of mobility (across geolinguistic borders) and inclusion (primarily into labor markets and government services). Mediation strategies are nevertheless selected in accordance with complex sets of criteria by which they are evaluated and compared in each particular situation. Case studies suggest that, if seen as performative language policy, the strategies tend to give more priority to social inclusion than to language diversity. They might thus constitute a challenge to some approaches to official language policy.
|
2022-11-08T16:31:53.849Z
|
18,348,080 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICMCS.2014.6911407",
"MAG": "1994084749",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Activity recognition datasets are generally imbalanced, meaning certain activities occur more frequently than others. Not incorporating this class imbalance results in an evaluation that may lead to disastrous consequences for elderly persons. In this work, we evaluate various types of resampling methods: at algorithmic level using CS-SVM and at data level using SMOTE-CSVM and OS-CSVM combined with the discriminative classifier named Soft-Margin Support Vector Machines (CSVM) in order to handle imbalanced data problem. We conduct several experiments using three real world activity recognition datasets and show that the SMOTE-CSVM and OS-CSVM are able to surpass CRF, CSVM and CS-SVM. OS-CSVM is slightly better than SMOTE-CSVM for classifying the activities using binary and ubiquitous sensors.
|
2022-12-17T21:43:52.056Z
|
30,183,550 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1079/cabicompendium.84004",
"MAG": "568472644",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This datasheet on equine coital exanthema covers Identity, Overview, Associated Diseases, Pests or Pathogens, Distribution, Hosts/Species Affected, Further Information.
|
2022-12-13T07:42:00.560Z
|
214,630,702 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3390/brainsci10030179",
"MAG": "3011386637",
"PubMedCentral": "7139350"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.mdpi.com/2076-3425/10/3/179/pdf?version=1585290950"
}
|
Background: The aim of this prospective, a three-year follow-up study, was to establish the role of high on-treatment platelet reactivity (HTPR) in predicting the recurrence of vascular events in patients after cerebrovascular incidents, particularly in the aspect of stroke etiology. Methods: The study included 101 subjects with non-embolic cerebral ischemia (69 patients with ischemic stroke and 32 patients with transient ischemic attack) treated with 150 mg of acetylsalicylic acid (aspirin) a day. The platelet reactivity was tested in the first 24 h after the onset of cerebral ischemia by impedance aggregometry. Recurrent vascular events, including recurrent ischemic stroke, transient ischemic attack, myocardial infarction, systemic embolism, or sudden death of vascular reason, were assessed 36 months after the onset of cerebral ischemia. Results: Recurrent vascular events occurred between 3 and 9 months after onset in 8.5% of all subjects; in the HTPR subgroup, recurrent vascular events occurred in 17.9%; in the normal on-treatment platelet reactivity (NTPR) subgroup, they occurred in 4.6%. We did not notice early or long-term recurrent events. Aspirin resistant subjects had a significantly higher risk of recurrent vascular events than did aspirin sensitive subjects (Odds ratio (OR) = 4.57, 95% Confidence interval (CI) 1.00–20.64; p = 0.0486). Cox proportional hazard models showed that large-vessel disease (Hazard ratio (HR) 12.04, 95% CI 2.43–59.72; p = 0.0023) and high on-treatment platelet reactivity (HR 4.28, 95% CI 1.02–17.93; p = 0.0465) were independent predictors of recurrent vascular events. Conclusion: Aspirin resistance in the acute phase of cerebral ischemia was associated with a higher risk of recurrent medium-term vascular events, coexisting with large-vessel etiology of stroke. Platelet function-guided personalized antiplatelet treatment should be considered for patients with recurrent strokes, especially when due to large-vessel disease.
|
2022-12-25T17:00:44.459Z
|
149,946,693 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5958/0974-1283.2019.00072.0",
"MAG": "2940992853",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Background/Objectives: This study compared the characteristics and the anatomical learning effects of a hamate bone model printed from DICOM images on a 3D printer. Method/Statistical Analysis: After printing a hamate bone model from DICOM images obtained from a wrist joint examination using a 3D printer, this study examined the anatomical understanding of 102 university students in public health departments. Findings: The intuitive awareness and the morphological awareness of the students on the protrusion, front and back of the hamate bone, and 5-way joint contact surfaces which were difficult to identify in conventional 2D and 3D medical images were improved by 60.7% and 58%, respectively. Improvements/Applications: The experiment showed that instrumenting of shape through 3D printing as a knowledge transfer method for students learning anatomy can improve the learning effect.
|
2022-01-27T13:13:17.356Z
|
126,513,681 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5400/JTS.2009.V14I3.229-238",
"MAG": "2914413045",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The effect of NPK compound (6:16:7) on chemical soil properties of Thapic Epiaquands, growth and yield of cucumber (Cucumis sativus) has been studied in Punthuk Rejo Village, Karanganyar District. The aims were to study the influence of NPK fertiliser on chemical soil properties, growth and yield of cucumber. The treatments were arranged in Randomized Complete Block Design and replicated three times. The treatments were rate of NPK fertilisers including control, NPK standard, 150 kg NPK compound (6:16:7) ha-1, 300 kg NPK compound (6:16:7) ha-1, 450 kg NPK compound (6:16:7) ha-1, 600 kg NPK compound (6:16:7) ha-1, 300 kg NPK compound (6:16:7) ha-1 + ¼ NPK standard, and 300 kg NPK compound (6:16:7) ha-1 + ½ NPK standard. The NPK standard originated from single fertiliser, namely urea, SP-36 and KCl, while the NPK compound was Agrotop, containing 6.15% N, 16.23% P2O5 and 6.87% K2O following named NPK compound (6:16:7). The rate of NPK standard was 100 kg urea ha-1, 100 kg SP-36 ha-1 and 200 kg KCl ha-1 referring to the local recommended fertiliser rate. Application of NPK, both NPK (6:16:7) and NPK Standard, improved the chemical soil properties, namely N, P and K total as well available P. So far, application of 300 kg NPK compound ha-1 significantly increased the number of cucumber fruits and cucumber yield. Compared to the control, the increases were 13% and 44% for the number of cucumber fruits and cucumber yield, respectively. So far, combination of NPK compound (6:16:7) at the rate of 300 kg ha-1 with half recommended rate of NPK standard yielded a significant effect on both the number of cucumber fruits and weight of cucumber. These improvements were comparable to the NPK standard under fully recommended rate. The relative agronomic effectiveness value of combination of NPK (6:16:7) at the rate of 300 kg ha-1 with half recommended rate of NPK standard were about 100%, similar with the value of NPK standard. The economic analysis indicated that NPK standard with recommended application rate and combination of NPK Agrotop at the rate of 300 kg ha-1 with half recommended rate of NPK standard gave high benefit, B/C ratio and IBCR. The B/C ratio and IBCR were higher than one.
|
2022-04-01T01:04:29.342Z
|
243,487,830 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.24018/ejbmr.2021.6.5.1123",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "GOLD",
"url": "https://www.ejbmr.org/index.php/ejbmr/article/download/1123/594"
}
|
With the acceleration of the wave of technological developments, the advertising industry started to abandon its traditional tools adopted in addressing customers. The advertising landscape through social media networks has become the most visible way to communicate and interact with customers. However, the advertising messages launched by marketers on these networks do not receive an adequate response from the target customers. The credibility of the information provided by advertisements on social media networks platforms is still questionable by many customers. Which may reduce the effectiveness of these advertisements and undermine the efforts of marketers to generate sufficient conviction among customers to buy. Therefore, this study seeks to test the impact of advertising credibility on purchase intentions among Iraqi Facebook users. In order to achieve this goal, adopted a quantitative approach by surveying a sample of 487 respondents. The results showed that advertising credibility had a moderately positive effect on purchase intentions. The study recommended that marketers should be keen to provide realistic and honest information about marketing offers in their advertising messages.
|
2022-10-05T15:15:13.506Z
|
35,122,989 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/TAP.2012.2201087",
"MAG": "2008237938",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Adopting a method of moments/physical optics (MoM-PO) hybrid method, this communication explores the electromagnetic scattering from three-dimensional (3-D) isotropic or anisotropic impedance surface, based on an impedance boundary condition (IBC). According to the surface equivalence principle, the electromagnetic scattering can be replaced by the radiation of surface electromagnetic currents in a MoM- and a PO-region, with the currents expanded in Rao-Wilton-Glisson (RWG) vector basis functions. The simulation of impedance surface is performed with the electromagnetic parameters characterized by a surface impedance dyadic. The hybrid method allows for a substantial reduction of computation time and memory requirement, while the numerical results agree well with the exact solutions such as Mie series, which proves the validity of the proposed method.
|
2022-12-02T04:03:00.393Z
|
250,118,810 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/SGSMA51733.2022.9806010",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Data quality plays a crucial role in successful applications of synchrophasor data in power system operation and control. This paper presents the results of a data quality analysis of a multi-year field-recorded synchrophasor dataset. The analysis has identified several typical data quality issues encountered in the field data. An examination of the PMU status words included with the dataset has revealed several inconsistent implementations and the lack of correlation between the PMU data quality and the status word, which impacts the usefulness of such information. Our investigation has concluded that the status word alone as found in the recorded field dataset could not be used as a reliable indicator of data quality for field-recorded data. Several recommendations are proposed to improve the usefulness of the PMU status word.
|
2022-12-02T03:59:54.566Z
|
157,875,657 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.18260/1-2--6369",
"MAG": "2608999101",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://peer.asee.org/6369.pdf"
}
|
The UNESCO Supported International Centre for Engineering Education (USICEE) was established in the Faculty of Engineering at Monash University on the recommendation of the UNESCO Steering Committee on Technical Human Resource Development under the chairmanship of Dr Adnan Badran, Deputy DirectorGeneral of UNESCO1. The USICEE is the world’s first and only centre for engineering education established under the auspices of UNESCO. It is a unique development which has been endorsed by a number of academic institutions and professional organisations worldwide. The establishment of the USICEE is regarded as the most important undertaking in the internationalisation of engineering education. Clearly the needs and opportunities to break down cross-cultural barriers, in this case in engineering education, are great, thereby promoting international trade, goodwill, peace and development. The establishment of the USICEE is our response to this call.
|
2022-10-14T01:23:43.423Z
|
25,533,744 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2116/ANALSCI.23.395",
"MAG": "1978318696",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The development of an NMR interface microchip and its applications to the real-time monitoring of chemical reactions are described. The microchip device was named "MICCS" (MIcro Channeled Cell for Synthesis monitoring), and the method using it was named "MICCS-NMR". MICCS was inserted into a 5 mm Phi NMR sample tube. Thus standard solution NMR probes without any modifications can be used in MICCS-NMR measurements. A gap between MICCS and the sample tube was filled with a deuterated solvent for an NMR lock. The reaction temperature and reaction time in MICCS can be easily changed by adjusting the temperature of the NMR probe and changing the flow rates, respectively. The effectiveness of the MICCS-NMR was verified in the real-time monitoring of the Wittig reaction. Preliminary data on the direct detection of intermediates of the Grignard reaction is also reported. Besides real-time monitoring of chemical reactions, MICCS-NMR would be useful as a qualitative detection method for microchip-based synthesis.
|
2022-12-10T22:45:08.743Z
|
140,758,923 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4471/QRE.2013.30",
"MAG": "4985751",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The article examines the cultivation of revolutionary nationalism and the production of postcolonial subjectivity under a foreign regime. The analysis centers on The Philippine Readers , one of the longest published and most widely adopted reading series for elementary students in grades 1 to 7 in the Philippines from 1920s to 1960s. Due to its use and scope, the Readers significantly impacted the development of Filipino mind, character, teaching, and learning for generations. The article mobilizes Michel Foucault’s notion of care of the self, whereby individuals undergo intensive self-scrutiny through texts that serve as manuals for living. It contends that the Readers functioned as a crucial guide that enabled Filipinos to care for themselves in instilling furtive yet subversive forms of nationalism under United States rule. More specifically, two forms of nationalism are discussed, and the concepts of covert and hybrid nationalism are situated within scholarly discussions regarding colonial complicity and opposition as well as Western and indigenous influences.
|
2022-12-16T02:24:35.091Z
|
96,436,246 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/pca.2829",
"MAG": "2929173078",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
INTRODUCTION
The Paeonia ostii T. Hong & J. X. Zhang seed shell, characterised by a high content of oligostilbenes, is one of the two most important by-products in the preparation of seed oil. Oligostilbenes are considered characteristic constituents of the genus Paeonia, and can be used in fingerprinting to determine the geographical origin and the quality of raw materials.
OBJECTIVE
To develop and optimise a simple and reproducible high-performance liquid chromatography diode array detection (HPLC-DAD) method for the simultaneous determination of seven oligostilbenes in P. ostii seed shell from different geographical areas, and to associate the cultivation area.
METHODOLOGY
A validated HPLC method coupled with a DAD detector was performed for the detection and determination of target compounds in the samples. Optimal chromatographic conditions were achieved using an Agilent Zorbax Eclipse SB-AQ-C18 column and a gradient elution with acetonitrile and potassium dihydrogen phosphate solution.
RESULTS
The proposed quantitative method showed appropriate accuracy and precision, and was successfully applied to the routine analysis of seven oligostilbenes and the quality evaluation of 50 P. ostii seed shell samples. There were significant differences between the contents of the seven oligostilbenes in different samples (P < 0.01).
CONCLUSION
The results demonstrated that the oligostilbenes were main secondary metabolites in the P. ostii seed shells, and the content of seven components in P. ostii seed shells sourced from different cultivation areas in China was different.
|
2022-12-19T13:03:50.918Z
|
245,134,020 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3389/fpubh.2021.663783",
"MAG": null,
"PubMedCentral": "8715956"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.frontiersin.org/articles/10.3389/fpubh.2021.663783/pdf"
}
|
Introduction: Planetary health (PH) has emerged as a leading field for raising awareness, debating, and finding solutions for the health impacts of human-caused disruptions to Earth's natural systems. PH education addresses essential questions of how humanity inhabits Earth, and how humans affect, and are affected by, natural systems. A pilot massive open online course (MOOC) in PH was created in Brazil in 2020. This MOOC capitalized on the global online pivot, to make the course accessible to a broader audience. This study describes the process of course creation and development and assesses the impact evaluation data and student outcomes of the PH MOOC. Methods: The PH MOOC pilot was launched in Brazilian Portuguese, using the TelessaúdeRS-UFRGS platform on 4/27/2020 and concluded on 7/19/2020 with a total load of 80 h. It was composed of 8 content modules, pre and post-test, 10 topics in a forum discussion, and an optional action plan. This study analyzes the course database, profile of participants, answers to questionnaires, forum interaction, and action plans submitted. Results: Two thousand seven hundred seventy-seven participants enrolled in the course, of which 1,237 (44.54%) gave informed consent for this study. Of the 1,237 participants who agreed to participate in the research, 614 (49.8%) completed the course, and 569 (92.67%) were accredited by TelessaúdeRS-UFRGS. The majority of the participants were concerned with climate change, trained in the health area, and worked in primary health care in places that lacked ongoing sustainability programs. Two hundred forty-one action plans were submitted, major topics identified were food and nutrition, infectious diseases, and garbage and recycling. Discussion: The use of the PH lens and open perspective of the course centered the need to communicate planetary health topics to individuals. The local plans reflected the motto of “think global and act local.” Brazil presents a context of an unprecedented social, political, and environmental crisis, with massive deforestation, extensive fires, and biomass burning altering the biomes, on top of an ongoing necropolitical infodemic and COVID-19 pandemic. In the face of these multiple challenges, this MOOC offers a timely resource for health professionals and communities, encouraging them to address planetary challenges as fundamental health determinants.
|
2022-12-21T19:43:19.485Z
|
219,066,217 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3892/etm.2020.8701",
"MAG": "3022449073",
"PubMedCentral": "7296293"
},
"license": "CCBYNCND",
"status": "GOLD",
"url": "https://www.spandidos-publications.com/10.3892/etm.2020.8701/download"
}
|
Diabetic nephropathy (DN) is one of the late complications of diabetes, which seriously affects the lives of patients. Baicalin (BA) is a flavone glycoside that has been identified to improve renal function in patients with DN. The present study aimed to investigate the roles and mechanisms of BA in DN. For that purpose, podocytes were cultured for 48 h under conditions of high glucose (HG; 30 mM D-glucose) or normal glucose (NG; 5 mM D-glucose). Then, the cells were treated with different concentrations of BA (6.25, 12.5 and 25 µM) for 24 h. Cell viability and apoptosis were determined using an MTT assay and flow cytometry, respectively. Protein and mRNA expression levels were analyzed using western blotting and reverse transcription-quantitative PCR, respectively. BA treatment was identified to promote the viability of podocytes and suppress cell apoptosis in a dose-dependent manner. Compared with the results in the NG group, HG stimulation significantly decreased the viability of podocytes and increased the apoptotic rate, whereas BA treatment following HG stimulation increased the viability of podocytes and decreased the apoptotic rate. Moreover, the effect of BA was revealed to be associated with the sirtuin 1/NF-κB signaling pathway in DN. In conclusion, the results of the present study suggested that BA treatment may significantly decrease HG-induced podocyte apoptosis, which indicated that BA might be a promising agent for DN treatment.
|
2022-12-25T22:54:48.743Z
|
203,592,379 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/1873-3468.13625",
"MAG": "2975030538",
"PubMedCentral": null
},
"license": "CCBY",
"status": "HYBRID",
"url": "https://febs.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/1873-3468.13625"
}
|
Reprogramming of cellular identity is fundamentally at odds with replication of the genome: cell fate reprogramming requires complex multidimensional epigenomic changes, whereas genome replication demands fidelity. In this review, we discuss how the pace of the genome's replication and cell cycle influences the way daughter cells take on their identity. We highlight several biochemical processes that are pertinent to cell fate control, whose propagation into the daughter cells should be governed by more complex mechanisms than simple templated replication. With this mindset, we summarize multiple scenarios where rapid cell cycle could interfere with cell fate copying and promote cell fate reprogramming. Prominent examples of cell fate regulation by specific cell cycle phases are also discussed. Overall, there is much to be learned regarding the relationship between cell fate reprogramming and cell cycle control. Harnessing cell cycle dynamics could greatly facilitate the derivation of desired cell types.
|
2023-01-01T17:11:25.600Z
|
14,108,315 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ITHET.2011.6018679",
"MAG": "2133019575",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Digital communications is a basic concept for rapidly growing fields of Electrical, Computer and Electronics Engineering like wireless and mobile communication systems, radar and electronic warfare, telemetry and many signal processing techniques. A re-designed digital communications course with ICT (Information and Communication Technologies) based diverse tools including matlab assignments, remote experiments and interactive simulators is described in this study. First, the objectives of the course, learning outcomes and evaluation methods are described. The re-designed course is offered in the last semester at Atilim University, and performance increase in students is compared with the previous year's offering, and by evaluating the course on a topic-based approach.
|
2022-02-13T03:01:12.490Z
|
33,066,001 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1432-1033.1973.TB02578.X",
"MAG": "2072822788",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
1
The binding curves of oestradiol and testosterone to plasma membranes from male or female rat livers show no specific sites of high affinity.
2
Plasma membranes from male and female rat livers show no disulphide interchange activity. It is concluded that no steroid-promoted association of ribosome with plasma membranes occurs.
3
Microsomes prepared from a homogenate from which plasma membranes have already been isolated, show a slightly higher concentration of specific high-affinity steroid-binding sites than do standard preparations of microsomes. It is concluded that standard microsomal preparations are contaminated only to a slight extent by fragments derived from the plasma membrane.
|
2022-02-12T10:30:21.080Z
|
3,345,119 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1159/000281243",
"MAG": "1977882725",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Sequential staining with Giemsa and quinacrine mustard on direct cytogenetic preparations was employed to characterize the karyotype of five bladder tumors of different stage and grade (TNM classification). The use of QFQ-banding allowed: the characterization of 2 euploid and 1 pseudodiploid cases, and the identification, in the two hyperdiploid cases, of a number of rearranged chromosomes otherwise morphologically indistinguishable from the normal ones. The importance of banding technique on direct cytogenetic preparations is stressed.
|
2022-09-08T11:04:33.605Z
|
235,295,458 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1101/2021.06.01.21258140",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GREEN",
"url": "https://www.medrxiv.org/content/medrxiv/early/2021/06/02/2021.06.01.21258140.full.pdf"
}
|
Background: The COVID-19 pandemic has reinforced, amplified and created new health inequalities. There is less evidence on how COVID-19 prevalence varies by measures of work and occupation which represent a key social determinant of health. The aim of the study is to evaluate how occupational inequalities in the prevalence of COVID-19 varies across England and their possible explanatory factors. Methods: We used data for 363,651 individuals (2,178,835 observations) aged 18 years and over between 1st May 2020 and 31st January 2021 from the ONS Covid Infection Survey, a representative longitudinal survey of individuals in England. We focus on two measures of work; employment status for all adults, and work sector of individuals currently working. Multi-level binomial regression models were used to estimate the likelihood of testing positive of COVID-19, adjusting for known explanatory covariates. Results: 0.9% of participants tested positive for COVID-19 over the study period. COVID-19 prevalence was higher among adults who were students or furloughed (i.e., temporarily not working). Among adults currently working, COVID-19 prevalence was highest in adults employed in the hospitality sector, with higher prevalence for individuals employed in transport, social care, retail, health care and educational sectors. Inequalities by work were not consistent over time. Conclusions: We find an unequal distribution of infections relating to COVID-19 by work and employment status. Our findings demonstrate the need for greater workplace interventions to protect employees, but also that a large proportion of SARS-CoV-2 transmission occurs outside of work. In particular, populations who experienced social and economic harms through being furloughed were also more likely to experience a double burden of increased likelihood of COVID-19.
|
2022-09-16T04:49:41.517Z
|
75,139,641 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/chem.201900120",
"MAG": "2921991964",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GREEN",
"url": "https://zenodo.org/record/3608854/files/Kaneko%20Photoinduced%20Emission%20Color%20Change%20MS.pdf"
}
|
The mechanoresponsive behavior and photochemical response of a new bis(cyanostyryl)benzene fluorophore (CSB-5) were investigated. Green fluorescence with λem,max of 507 nm was found for CSB-5 in chloroform solution, mirroring the behavior of a previously reported similar dye (CSB-6). Alternatively, crystalline samples of CSB-5 exhibited orange fluorescence with λem,max of 620 nm, attributable to excimer emission. Although the emission color change was not clearly noticeable by naked eye, CSB-5 exhibited mechanochromic luminescence, due to transformation into the amorphous state upon grinding the crystalline powder. Interestingly, rubbed films of CSB-5 prepared on glass substrates exhibited a pronounced emission color change from orange to green when exposed to UV light. This response is the result of a photochemical reaction that occurs in the amorphous state and which causes a decrease of the excimer emission sites so that the emission color changes from excimer to monomer. The crystalline material did not display such a photoinduced emission color change and the difference in photochemical reactivity between crystalline and amorphous states was exploited to pattern the emission color of rubbed films.
|
2022-10-28T01:14:30.743Z
|