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211,833,428 |
{
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"DOI": "10.1080/00016357.2020.1730436",
"MAG": "3009123177",
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},
"license": "CCBYNCND",
"status": "HYBRID",
"url": "https://doi.org/10.1080/00016357.2020.1730436"
}
|
Abstract Objective: The benefit of bibloc over monobloc appliances in treating obstructive sleep apnoea (OSA) has not been evaluated in randomized trials. We hypothesized that these types of appliances would be equally effective. Material and methods: In this multicentre, randomized equivalence trial, patients with OSA received one type of bibloc or one type of monobloc treatment. At baseline, a 1-night polygraphy study was done, and this was repeated after 1 year. The outcome was any change in the apnoea–hypopnoea index (AHI) and the limits of equivalence between the two devices were set at ±5 AHI units. Results: Of 302 patients, 146 were randomly assigned to bibloc and 156 to monobloc appliances. In 88 and 104 patients, respectively, there were significant reductions in the AHI (p < .001) with a mean change of −16.7 (95% CI −19.4 to −14.1) in the bibloc and −11.8 (−14.9 to −8.7) in the monobloc groups. The proportions of responders defined as having an AHI <10 were 68% and 65% for the bibloc and monobloc groups, respectively. Treatment-related adverse events were mild, transient and the dropouts were more frequent in the bibloc group. Conclusions: Both types of treatments positively and significantly reduced respiratory disturbances, but at the 1-year follow-up, they were not significantly different in treating OSA, with a numerically greater reduction of the AHI value with the bibloc appliance. However, the higher proportion of treatment-related adverse events and higher proportion of dropouts among bibloc users should be balanced against the advantage of a greater reduction in the AHI.
|
2022-12-23T01:53:03.755Z
|
121,004,603 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1061/(ASCE)0733-950X(1985)111:2(401)",
"MAG": "1990052945",
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},
"license": null,
"status": null,
"url": null
}
|
A representation for nonlinear random waves is obtained from a perturbatioh expansion method. The first‐order wave solution is assumed to be a zero‐mean, Gaussian process. The skewness measure and the skewness kernel for the nonlinear second‐order waves are examined numerically and are compared with hurricane‐generated, real ocean waves. These skewness measures are shown to always be positive and to increase as the water depth decreases. The effects of the angle of intersection between interacting wave trains are also examined numerically.
|
2022-02-09T20:31:16.633Z
|
116,163,075 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.15253/rev",
"MAG": "2330422147",
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},
"license": null,
"status": null,
"url": null
}
|
O presente estudo tem como objetivo avaliar a implementacao do quarto passo para a promocao do aleitamento materno em um hospital amigo da crianca em Recife-PE, Brasil. Trata-se de um estudo descritivo, observacional, transversal, quantitativo. A amostra correspondeu a 80 profissionais de saude, sendo 47 medicos e 33 da equipe de enfermagem. Os dados coletados oriundos de entrevista e observacao nao participativa foram analisados pelo programa Epi-Info versao 6.04, sendo realizada analise descritiva e bivariada, utilizando-se o teste qui-quadrado, considerando nivel de significância de 5%. Apenas 36,6% dos recem-nascidos foram contemplados com o 4o passo. Entre aqueles com Apgar ≥ 6 no 1o minuto, 59,3% nao foram colocados no peito e nem ficaram em contato pele a pele com sua mae. O parto transvaginal foi estatisticamente mais significante em comparacao ao cesareo. O hospital em estudo nao esta implementando como rotina o 4o passo para a promocao do aleitamento materno. Descritores: Aleitamento Materno; Saude da Mulher; Saude da Crianca.
|
2022-02-10T00:17:02.292Z
|
110,417,836 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4028/www.scientific.net/AMM.404.473",
"MAG": "2147995292",
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},
"license": null,
"status": null,
"url": null
}
|
Technical diagnostics that is currently the most important factor of reliability deals with the forms of speech disorders, process, detection and operation principle. As a tool, it ́s very important for the operation and maintaince of production equipments. It detects safety and reliability of economic efficiency, it optimizes costs for the continuity of production and quality of the final products. There is recorded great interest for it not only in the scientific sphere, but also in the application sphere of its results in the newly developed methods and their application in the professional practice. This article describes the use of tools of technical diagnostics in the workplaces to monitor the behaviour of production equipments.
|
2022-02-10T05:07:18.703Z
|
124,585,022 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5057/KEI.10.69",
"MAG": "2401890789",
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},
"license": null,
"status": null,
"url": null
}
|
This research is focused with profiling with form of the image and existence of emotion. Image profiling in this experiment we call it stereo type image. Research consists of 3 different types of experiments. Each experiment was given with items(words) for stimulating. 1st experiment was to building up hypothesis to check the existence of stereo type images. 2nd experiment was to check character of the stereo type image from opposite sex. 3rd experiment was done with Janpanese. To check stereo type image of the object when it is described in different type of word form( Kanji, Hiragana and Katakana). Experience can affect the stereo type image was proven through the experiment.
|
2022-05-28T17:50:15.408Z
|
200,989,816 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.13130/2037-2426/11961",
"MAG": "2964200569",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Recensione di Rosalba Galvagno, La litania del potere e altre illusioni. Leggere Federico De Roberto (Marsilio, 2017). Review of La litania del potere e altre illusioni. Leggere Federico De Roberto , by Rosalba Galvagno (Marsilio, 2017).
|
2022-07-09T01:58:56.482Z
|
235,203,677 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/03639045.2021.1934865",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
Abstract Colchicine (Col) is a drug used mainly for prevention and treatment of acute gouty arthritis. Unfortunately, colchicine has a narrow therapeutic index, with no obvious differentiation between toxic and nontoxic doses, resulting in a great deal of doubt and a disappointing outcome. To surmount such limitation, colchicine nanoemulsion systems (ColNE) were developed using water titration technique. The pseudoternary phase diagrams of surfactant (Span 20 or Span 60 or Tween 80), cosurfactant (ethanol) and oil (IPM) were constructed. The developed ColNE systems were characterized for particle size (PS), polydispersity index (PDI), zeta potential (ZP) and entrapment efficiency (EE %). ColNE-5 was selected as optimized system with PS = 103.34 ± 5.44 nm, ZP = 34.23 ± 0.94 mV, PDI = 0.26 ± 0.01% and EE % = 75.65 ± 0.34%. To track ColNE-5 in vivo, technetium 99 m (99mTc) was incorporated into this system via coupling with colchicine. 99mTc-ColNE-5 and 99mTc-Col solution (99mTc-ColS) were injected intra-articularly (IA) into the inflamed knee joint of Swiss albino mice joints stimulated by MSU crystals then the biodistribution pattern was studied. The findings revealed that IA injection of 99mTc-ColNE-5 significantly enhanced retention and the pharmacodynamic effects of Col compared to 99mTc-ColS. Herein, we concluded that nanoemulsion (NE) could be used as an IA injectable delivery vehicle to improve retention and localization of Col inside the inflamed joint.
|
2022-08-26T13:46:41.805Z
|
12,344,405 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1190/GEO2012-0209.1",
"MAG": "1987660609",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Accurate interpretation of seismic traveltimes and amplitudes in the exploration and global scales is complicated by the band-limited nature of seismic data. We discovered a stochastic method to reduce a seismic waveform into a most probable constituent spike train. Model waveforms were constructed from a set of candidate spike trains convolved with a source wavelet estimate. For each model waveform, a profile hidden Markov model (HMM) was constructed to represent the waveform as a stochastic generative model with a linear topology corresponding to a sequence of samples. Each match state in the HMM represented a sample in the model waveform, in which the amplitude was represented by a Gaussian distribution. Insert and delete states allowed the underlying source wavelet to dilate or contract, accounting for nonstationarity in the seismic data and errors in the source wavelet estimate. The Gaussian distribution characterizing each sample’s amplitude accounted for random noise. The Viterbi algorithm was employed to simultaneously find the optimal nonlinear alignment between a model waveform and the seismic data and to assign a score to each candidate spike train. The most probable traveltimes and amplitudes were inferred from the alignments of the highest scoring models. The method required no implicit assumptions regarding the distribution of traveltimes and amplitudes; however, in practice, the solution set may be limited to mitigate the nonuniqueness of solutions and to reduce the computational effort. Our analyses found that the method can resolve closely spaced arrivals below traditional resolution limits and that traveltime estimates are robust in the presence of random noise and source wavelet errors. The method was particularly well suited to fine-scale interpretation problems such as thin bed interpretation, tying seismic images to well logs, and the analysis of anomalous waveforms in global seismology.
|
2022-08-30T00:09:31.117Z
|
21,133,325 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1097/MD.0000000000007564",
"MAG": "2747382069",
"PubMedCentral": "5571993"
},
"license": null,
"status": null,
"url": null
}
|
Abstract This study aimed to identify the key differentially expressed genes (DEGs) following ischemic stroke (IS). The GSE22255 microarray dataset, which contains samples from peripheral blood mononuclear cells of 20 IS patients and 20 sex- and age-matched controls, was downloaded from the Gene Expression Omnibus. After data pre-processing, DEGs were identified using the Linear Models for Microarray Data package in R. The Search Tool for the Retrieval of Interacting Genes database was used to predict the interactions among the products of DEGs, and then Cytoscape software was used to visualize the protein–protein interaction (PPI) network. DEGs in the PPI network were then analyzed using the Database for Annotation, Visualization, and Integrated Discovery online software to predict their underlying functions through functional and pathway enrichment analyses. A total of 144 DEGs were identified in IS samples compared with control samples, including 75 upregulated and 69 downregulated genes. Genes with higher degrees in the PPI network included FOS (degree = 26), TP53 (degree = 22), JUN (degree = 20), EGR1 (degree = 18), JUNB (degree = 16), and ATF3 (degree = 15), and these genes may function in IS by interacting with each other (e.g., EGR1-JUN, EGR1-TP53, ATF3-FOS, and JUNB-FOS). Functional enrichment analysis indicated that the downregulated TP53 gene was enriched in immune response and protein targeting categories. ATF3 and EGR1 may have an important protective effect on IS, whereas FOS, JUN, and JUNB may be associated with the development of IS. In addition, TP53 may function as an indicator of poor prognosis for IS through its association with the immune response and protein targeting.
|
2022-12-15T22:23:45.711Z
|
85,749,131 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3168/JDS.S0022-0302(81)82827-5",
"MAG": "2166336046",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract To determine whether dairy rations influence the accuracy of component analyses, fat, protein, lactose, and total solids were measured in milk produced by Holstein cows fed a basal ration or a ration containing either 7% extruded soybeans, 15% whole cottonseed, or 30% whole cottonseed for the first 15 wk postpartum. Samples from individual milkings were collected in the 14th and 15th wk from 12 or 13 cows in each group. Reference methods were Mojonnier for fat, Udy dye-binding for protein, polarimetry for lactose, and forced-air oven for total solids. The methods compared to reference methods were Milkotester and Babcock for fat and Infrared Milk Analyzer for fat, protein, lactose, and solids-not-fat. Fatty acid composition was determined by gas chromatography. For cows fed 30% whole cottonseed, Infrared Milk Analyzer fat measurements averaged .14% lower than by Mojonnier. For cows fed extruded soybeans or whole cottonseed, Milkotester fat measurements were higher than by Mojonnier, and Infrared Milk Analyzer protein measurements were higher than by Udy dye-binding. For cows fed whole cottonseed, Infrared Milk Analyzer solids-not-fat measurements were higher than by forced air oven. For cows fed extruded soybeans or whole cottonseed, differences between Babcock and Mojonnier fat measurements and between Infrared Milk Analyzer and polarimetric lactose measurements were not affected. For cows fed whole cottonseed, the mean molecular weight of the fatty aicds of milk fat was increased.
|
2022-12-19T07:26:38.454Z
|
231,787,216 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1155/2021/6679708",
"MAG": null,
"PubMedCentral": "7840256"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://downloads.hindawi.com/journals/omcl/2021/6679708.pdf"
}
|
Periodontitis is usually sustained from microorganism of oral cavity, like Porphyromonas gingivalis (P. gingivalis). Periodontal disease is an infectious disease that afflicts a large number of people. Researches are investigating on the mesenchymal stem cells (MSCs) response to inflammatory events in combination with antioxidant substances. In particular, ascorbic acid (AA) increased cell proliferation, upregulated the cells pluripotency marker expression, provide a protection from inflammation, and induced the regeneration of periodontal ligament tissue. The purpose of the present research was to investigate the effects of AA in primary culture of human periodontal ligament stem cells (hPDLSCs) exposed to P. gingivalis lipopolysaccharide (LPS-G). The effect of AA on hPDLSCs exposed to LPS-G was determined through the cell proliferation assay. The molecules involved in the inflammatory pathway and epigenetic regulation have been identified using immunofluorescence and Western blot analyses. miR-210 level was quantified by qRT-PCR, and the ROS generation was finally studied. Cells co-treated with LPS-G and AA showed a restoration in terms of cell proliferation. The expression of NFκB, MyD88, and p300 was upregulated in LPS-G exposed cells, while the expression was attenuated in the co-treatment with AA. DNMT1 expression is attenuated in the cells exposed to the inflammatory stimulus. The level of miR-210 was reduced in stimulated cells, while the expression was evident in the hPDLSCs co-treated with LPS-G and AA. In conclusion, the AA could enhance a protective effect in in vitro periodontitis model, downregulating the inflammatory pathway and ROS generation and modulating the miR-210 level.
|
2022-12-30T01:02:07.029Z
|
165,656,981 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.7146/sl.v0i18.103652",
"MAG": "2786512243",
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},
"license": null,
"status": "BRONZE",
"url": "https://tidsskrift.dk/slagmark/article/download/103652/152635"
}
|
I juni 1769, samme ar som Napoleon Bonaparte blev fodt i Ajaccio pa Corsica, forlod en ung mand pa 25 ar Riga for at sejle ud pa en rejse i det bla. Han hed Johann Gottfried Herder, var fodt i 1744 i Mohrungen, en lille by i Ostpreussen, og var derfor tysk af sprog og kultur og luthersk af religion.
|
2022-02-08T19:52:49.356Z
|
221,174,515 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/2325967120S00406",
"MAG": null,
"PubMedCentral": "7407866"
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"status": null,
"url": null
}
|
Objectives: Variations in bony anatomy may be associated with failure of stabilization surgery. The aim of this study was to develop a method to measure bony morphology on magnetic resonance imaging (MRI) to identify risk factors for failure after Bankart repair. Methods: This was a retrospective case-control study of 118 patients. Cases of postoperative dislocation were compared to matched controls. Demographic data was obtained by chart review and radiographic data from preoperative MRI. Volume was measured using a 3-D model. Radius of curvature of the humeral head and glenoid was measured on axial MRI images. Statistical analysis used student’s t-test for continuous variables and either Fisher’s exact or Chi-squared test for categorical variables; P value < 0.05 was significant. Interrater reliability between reviewers was calculated using interclass correlation coefficients (r). Results: Forty-six patients who had a postoperative dislocation met inclusion criteria and were matched to 72 controls. There was no difference between groups for demographic (age, sex, percentage of contact athletes) or radiographic (glenoid bone loss, off-track Hill-Sachs lesions) parameters. The average number of preoperative dislocations was higher in the case group (3.2 vs. 2.0, p=0.003). The humeral head (68.8 ml vs 62.8 ml, p=0.05) volume was greater in the case group, though this did not reach statistical significance. Glenoid volume (13.5 ml vs 12.8 ml, p=0.31) was similar between groups. The radius of curvature of the glenoid was larger, or shallower, in the case group compared to the control group (23.6 mm vs 22.6 mm, p=0.05), though the difference did not reach statistical significance. A greater percentage of patients with a glenoid radius of curvature > 24.5 mm experienced a postoperative dislocation compared to those who had a smaller radius of curvature (62.0% vs 29.8%, p < 0.01). In fact, patients who had glenoid radius of curvature > 24.5 mm were 5 times as likely to experience a postoperative dislocation compared to those who did not (odds ratio 5.04, 95% CI 2.13 – 11.94, p < 0.01) There was no significant difference between the number of preoperative dislocations between patients with larger or smaller glenoid radius of curvature (2.6 vs 2.3, p = 0.55). There was a strong interrater reliability for measurement of humeral head volume, glenoid volume, radius of curvature of glenoid and radius of curvature of humeral head (r = 0.94, 0.88, 0.89, 0.95). Conclusion: The results of this study demonstrate that a larger radius of curvature, indicative of a shallower glenoid, is associated with failure following primary arthroscopic Bankart. These findings suggest that the bony concavity of the glenoid may play a role in stability. Figure 1.
|
2022-01-24T22:24:47.639Z
|
153,330,769 |
{
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"ArXiv": null,
"DOI": "10.1080/09585199400000011",
"MAG": "2018021040",
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"license": null,
"status": null,
"url": null
}
|
The paper reports the results of a contents analysis performed on fifty personnel and HRM texts. It suggests that there is a common set of person-nel/HRM tasks across cultures. Within this common set there are differences in the priority accorded to particular tasks. British HRM texts give priority to organizational theory, American HRM texts prioritize corporate strategy, while personnel texts prioritize industrial relations and collective bargaining. The conclusion considers as possible explanations the divergence in the systems of industrial relations of the two countries and the markets towards which the texts are oriented. It argues that a more likely explanation derives from the differential cultural values which inform managerial research in Britain and America.
|
2022-09-01T09:02:52.135Z
|
95,738,501 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/02757549608035346",
"MAG": "1991230424",
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},
"license": null,
"status": null,
"url": null
}
|
Abstract The ability of microbial populations to mediate the anaerobic transformation of four aromatic compounds (aniline, benzoic acid, pyridine, and quinoline) in sediments of the Tsengwen River was examined. Along the river, from a freshwater (0.0° salinity) to an oceanic (37.0° salinity) environment, five sampling stations were chosen to collect the sediment. Sediment slurries were incubated in an anaerobic mineral salts medium that was amended with multiple electron acceptors, including manganese (IV) and ferric (III) oxides, and the concentrations of the aromatic substrates were followed over a 3- to 4-month period. Most sediment samples showed a complete loss of benzoic acid and quinoline (0.12–0.21 mM) within approximately three months. Pyridine was transformed after a lag period of 53 days in the sediment slurries from the freshwater environment which had been amended with both metal oxide (either Fe (OH)3 or MnO2) and inhibitor (either BESA or molybdate). Pyridine was not transformed in other se...
|
2022-09-06T02:41:04.272Z
|
38,698,797 |
{
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"ACL": null,
"ArXiv": null,
"DOI": "10.3109/15563658908994421",
"MAG": "2069755886",
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},
"license": null,
"status": null,
"url": null
}
|
Exposure to caustic agents is a common problem, affecting thousands of individuals annually. Despite this incidence, the factors responsible for the production of injury remain poorly defined. Although extremes of pH seem to correlate well with the production of esophageal lesions, pH alone fails to explain the damage resulting from exposure to agents with near neutral pH, such as soldering flux containing zinc chloride. We determined titratable acid/alkaline reserve (TAR) in 38 potentially caustic household agents. A subset of these products was evaluated in an in-vitro canine esophageal model to determine whether TAR correlated with esophageal injury. The results indicate that for the products evaluated TAR correlated better than pH with the production of caustic esophageal injury.
|
2022-09-07T02:04:02.485Z
|
55,753,995 |
{
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"ArXiv": null,
"DOI": "10.1515/sggw-2016-0011",
"MAG": "2483978427",
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},
"license": null,
"status": "GOLD",
"url": "https://doi.org/10.1515/sggw-2016-0011"
}
|
Abstract Variability of suspended sediment grain size distribution in winter floods. The work presents the results of research concern variability of suspended sediment grain size, transported during the winter floods in agricultural catchment, in the period of hydrological years 2012-2015. The information about grain size distribution from nine winter flood events were collected over the study period, which allowed to analyze the variability of suspended sediment particle size during the various events. Grain size of sediment was determined using a laser particle size analyzer Mastersizer Microplus from Malvern Instruments Ltd. Variability of individual particle size classes were observed in each flood. Sand fraction dominated in seven of nine measured events. There was no significant increase of suspended sediment size in relation to the maximum of discharge. It can be explain by a relatively low discharge of recorded events. The percentage of material classified as clay (<4 μm) ranged from 0.08 to 1.01%, silt-sized material (>4 and <63 μm) ranged between 9.31 and 67.17% and sand-size material (>63 μm) ranged from 32.01 to 90.61%. The relationship between the particle size and the discharge requires further studies. The diameter d10, d50 and d90 and a standard deviation were calculated for each flood. Mean values of d50 for individual flood ranged between 41.05 and 191.32 μm with average value of 99.01 μm and average standard deviation of 32.57.
|
2022-12-17T00:41:19.327Z
|
20,737,591 |
{
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"ArXiv": null,
"DOI": "10.1109/PROC.1981.11986",
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"status": null,
"url": null
}
|
The purpose of this paper is to present a systematic survey of the theoretical/experimental work accomplished in the area of digital phase-locked loops (DPLL's) during the period of 1960 to 1980. The DPLL represents the heart of the Building blocks required in the implementation of coherent (all digital) communications and tracking receivers. This survey is particularly motivated by the fact that microprocessor technology is advancing rapidly to the extent that sophisticated and flexible signal processing algorithms for communications and control can be realized in the digital domain. In fact, it is anticipated that the use of this signal processing technology will continue to expand rapidly in the development of advanced communications and tracking receivers, e.g., all digital modems. Consequently, one major purpose of this paper is to provide the reader with a survey and an overview of the theoretical and experimental work accomplished to date, thereby offering speedy access to the techniques and hardware developments which have been presented in a scattered literature. In addition, the authors feel that a tutorial article revealing the various theories, their relationships to one another, their shortcomings, their advantages and the assumptions on which each is based, would be of tremendous value to the engineer trying to decide what particular analysis procedure is applicable to his peculiar problem. Consequently, a byproduct of this presentation will be to point out unsolved problems of practical interest. A broad class of digital modulation techniques, viz. I-Q modulations and demodulation, are studied in a rather general way.
|
2022-12-25T22:57:13.986Z
|
88,368,185 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1002/biuz.201510580",
"MAG": "2290201278",
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"url": null
}
|
Der Boden ist einer der individuen‐ und artenreichsten Lebensräume der Erde und Ort vielfältiger ökosystemarer Dienstleistungen. Aktuelle Forschungsprojekte zur Entstehung und Entwicklung von Bodentiergemeinschaften, zu den vielfältigen Wechselwirkungen innerhalb des Bodennahrungsnetzes und zur Verbreitung von Bodentieren geben unter anderem Einblick in die ökologischen Ansprüche und Anpassungsfähigkeit der Welt unter unseren Füßen und tragen so dazu bei, eine nachhaltige Nutzung der Ökoressource Boden zu gewährleisten.
|
2022-02-10T20:35:57.523Z
|
11,109,058 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.7748/NS.31.9.37.S42",
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"url": null
}
|
The banding system under Agenda for Change gives nurses a clear path for career progression, but it can require careful negotiation to move from compatible colleague to respected manager.
|
2022-02-13T05:39:26.663Z
|
74,955,812 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.18093/0869-0189-2012-0-3-88-92",
"MAG": "158763791",
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},
"license": "CCBY",
"status": "HYBRID",
"url": "https://journal.pulmonology.ru/pulm/article/download/86/85"
}
|
Retrospective cohort study included 135 patients with rheumatoid arthritis (RA). Patients were divided into two groups: 1) patients with pulmonary involvement (n=72) and 2) patients without pulmonary pathology (n=63). The standard clinical and biochemical examination, immunoassays, hemostasis system evaluation, electrocardiography, echocardiography, and the chest X"ray examination were performed. The study showed that rheumatoid nodules, Raynauds phenomenon, arterial hypertension, hepatomegaly, signs of hepatosis or diffuse changes in the liver according to ultrasound examination, neurological disorders, and abnormal IgA levels were found significantly more often in RA patients with pulmonary injury.
|
2022-04-15T00:24:19.722Z
|
20,308,014 |
{
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"ArXiv": null,
"DOI": "10.1159/000475152",
"MAG": "2282494611",
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"status": null,
"url": null
}
|
Xanthogranulomatous pyelonephritis is a rare disease that may mimic various renal lesions, especially renal tumors, in its focal form. We report a case of pseudoneoplastic xanthogranulomatous pyelonephritis in a young woman. This case is unusual, because it was diagnosed by a percutaneous renal puncture and furthermore total renal recovery was achieved by antibiotic treatment alone.
|
2022-08-24T05:56:07.244Z
|
71,285,703 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1055/S-2004-813278",
"MAG": "2003119221",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The limited lifetime and the correlation between graft occlusion and recurring symptoms underline the need for repeated imaging of coronary artery bypass grafts. CT and MRI allow for non-invasive imaging of coronary bypasses with high accuracies concerning the patency of these vessels. Multidetector CT seems to be the CT technique of choice, especially after the introduction of 16 slice CT scanners for morphologic assessment of coronary artery bypass grafts. Compared with MRI, CT is a robust technique for assessment of cardiac anastomoses, native coronary arteries, and for the detection of graft stenoses. MRI, however, is able to deliver functional information about the grafts and the recipient coronary arteries by determining the coronary flow reserve. Furthermore, it can be integrated in a multiparametric MR examination protocol. The follow-up of asymptomatic patients can primarily be done by these non-invasive techniques as nearly every third patient reveals an asymptomatic bypass occlusion 5 years after operation. Furthermore, patients with atypical complaints after the operation may undergo non-invasive imaging as long as documented patency of the bypass averts coronary angiography. Patients with recurrent angina pectoris and/or myocardial ischemia discovered by other cardiologic tests have to undergo coronary angiography.
|
2022-08-27T09:29:40.704Z
|
235,476,900 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1108/IJLSS-11-2019-0118",
"MAG": "3158943747",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The purpose of this study is to enhance the understanding of Japanese Lean management principles in South African contexts using Ubuntu, to improve buy-in during Lean implementation.,A scoping systematic literature review (SLR) was used to investigate the correlations and variations between Lean management principles and Ubuntu management principles.,Both similarities and differences were discovered between Ubuntu and Lean. It was noted that Lean adopts principles that do not have corresponding Ubuntu principles, such as levelling out workload, continuous process flow, stopping to fix the problem and visual management.,While this research only used a South African concept (Ubuntu) to develop a novel Lean analogy, future research could be pursued in a similar vein for other countries outside of Japan.,The similarities could assist in “translating” Lean concepts to a South African context, ergo improving the understanding of the Lean principles and possibly contributing to more successful Lean implementations.,To the researcher’s knowledge at time of publication, this study is the first comparison of these two management philosophies. Ergo, the Lean–Ubuntu analogy is a novel comparison of Lean.
|
2022-03-11T08:25:44.710Z
|
149,722,620 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/01488376.2018.1476292",
"MAG": "2809145031",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
ABSTRACT This study focuses on a program designed to engage at-risk youth in the National Civic Service (NCS) in Israel with the goal of enabling them to better integrate into normative adult lives. This exploratory study employed a cross-sectional design and compared groups of at-risk female volunteers (N = 426) with comparison groups of not at-risk participants in the NCS (N = 456). For both of them, three sub-groups were examined at different stages of their service: the beginning, near the end, and about one year after finishing the service. In both the at-risk and comparison groups, self-esteem was higher among the alumni compared to those at earlier stages of the program. Life satisfaction was generally much lower among the at-risk group, but after service completion, both groups reported higher life satisfaction. There were no significant differences between the groups in their future perceptions. The implications of these findings for policy and practice are discussed.
|
2022-09-11T04:07:05.537Z
|
239,679,128 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3390/d13090412",
"MAG": "3197671721",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.mdpi.com/1424-2818/13/9/412/pdf?version=1630232283"
}
|
Parrots have been transported and traded by humans for at least the last 2000 years and this trade continues unabated today. This transport of species has involved the majority of recognized parrot species (300+ of 382 species). Inevitably, some alien species either escape captivity or are released and may establish breeding populations in the novel area. With respect to parrots, established but alien populations are becoming common in many parts of the world. In this review, we attempt to estimate the total number of parrot species introduced into the wild in non-native areas and assess how many of these have self-sustaining breeding populations. Based the public databases GAVIA, eBird, and iNaturalist, 166 species of Psittaciformes have been introduced (seen in the wild) into 120 countries or territories outside of the native range. Of these, 60 species are naturalized, and an additional 11 species are breeding in at least one country outside of their native range (86 countries or territories total). The Rose-ringed Parakeet (Psittacula krameri) and Monk Parakeet (Myiopsitta monachus) are the most widely distributed and successful of the introduced parrots, being naturalized in 47 and 26 countries or territories, respectively. Far and away, the United States and its territories support the greatest number of naturalized parrots, with 28 different species found in either the continental US, or Hawaii or Puerto Rico. Naturalized species as well as urbanized native species of parrots are likely to continue increasing in numbers and geographical range, and detailed studies are needed to both confirm species richness in each area as well mitigate potential ecological impacts and conflicts with humans.
|
2022-11-01T16:04:53.928Z
|
36,703,901 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/0885066605284330",
"MAG": "2113923015",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Almost 2 million patients are admitted to hospitals in the United States each year for treatment of traumatic injuries, and these patients are at increased risk of late infections and complications of systemic inflammation as a result of injury. Host response to injury involves a general activation of multiple systems in defending the organism from hemorrhagic or infectious death. Clinicians have the capability to support the critically injured through their traumatic insult with surgery and improved critical care, but the inflammatory response generated by such injuries creates new challenges in the management of these patients. It has long been known that local tissue injury induces systemic changes in the traumatized patient that are often maladaptive. This article reviews the effects of injury on the function of immune system cells and highlights some of the clinical sequelae of this deranged inflammatory-immune interaction.
|
2022-12-14T00:54:12.350Z
|
19,726,891 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICCME.2007.4381738",
"MAG": "2092829196",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Medical information system such as electronic medical record is very expensive. And it cannot completely satisfy medical care staff. Recently, in some of Japanese hospitals, medical operating support systems are built by medical care staffs. In such cases, FileMaker Pro which is commercial database software is frequently used. In this paper we describe the usefulness and benefit of such a system made with FileMaker Pro.
|
2022-12-21T01:12:09.225Z
|
164,510,005 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4067/S0718-84712016000100008",
"MAG": "2559334094",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Este ensayo explora el uso del mito griego, particularmente el episodio del sacrificio de prisioneros troyanos ejecutado por Aquiles ante la tumba de Patroklos (Il. XXIII, 175-176) en monumentos funerarios de Apulia y Etruria en el siglo IV a.C. Mediante una comparacion iconografica, se analizara el significado del mito en la ideologia funeraria de estas culturas.
|
2022-01-24T18:07:48.624Z
|
218,544,429 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/10486801.2019.1654677",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Sarah Bartley is a Teaching Fellow in Contemporary Performance at the University of Leeds. Her research examines the intersections of work, participation, and performance at play within socially engaged and applied performance practices. Sarah has previously published with Research in Drama Education: The Journal of Applied Theatre and Performance and her monograph Performing Welfare: Applied Theatre, Unemployment, and Economies of Participation is forthcoming with Palgrave Macmillan.
|
2022-01-24T19:00:16.278Z
|
109,213,320 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4028/www.scientific.net/AMM.584-586.2011",
"MAG": "2013120395",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Steel claddings such as a long spanned roof have been damaged by metal fatigue affected by wind load or thermal load. To reduce damage of steel claddings, it is necessary for design and construction to consider metal fatigue influence. This paper shows a basic data for steel claddings to evaluate fatigue damage caused by cyclic thermal expansion exposed to solar radiation. Specimens are fabricated which specification are steel sidings and steel sandwich panels, and surface temperatures of specimens are measured throughout the year. Then, amplitude temperatures and their cyclic numbers are evaluated.
|
2022-02-10T06:22:48.200Z
|
93,217,579 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/0022-3727/22/7/002",
"MAG": "1978520731",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Three special cases of ohmic dissipation are considered where wall charges are deposited on a planar insulating barrier of surface resistance eta which separates the external electrodes from the discharge plasma in a typical external electrode discharge device. It is shown that the electrical potential Vs produced inside the discharge vessel by wall charges associated with small electrodes behaves as if it were produced by a point charge which recedes from the discharge at a constant speed 1/2 eta epsilon 0, where epsilon 0 is the vacuum permittivity. The other two cases relate to planar electrodes covered by an insulator of thickness h. For circular wall charge spots with gaussian radial charge density distributions of initial average radius r0, it is shown that the electrical potential developed by small spots (r0 >h the area of the wall charge spots increases linearly with time at a rate proportional to h/ eta epsilon 0. It is shown that the size dependence of the behaviour of the wall charge spots is due to the interaction of the wall charges with the image charges required to keep the electrode surfaces as equipotentials.
|
2022-02-10T17:57:03.066Z
|
250,890,724 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.7567/JJAP.34.L101",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Fixed and interface trap charges in hot-carrier degraded metal oxide semiconductor field effect transistors (MOSFET's) can be distinguished by ultraviolet light (λ=253.7 nm) annealing, and observing the resultant changes in the gate-to-drain capacitance. Trapped electrons anneal readily, resulting in large changes in the gate capacitance and the threshold voltage. This suggests a trap level below the conduction band edge of SiO2 that is smaller than the photon energy (4.9 eV). In contrast, trapped holes and interface traps do not anneal, or anneal insignificantly even after prolonged irradiation. This is consistent with a much deeper hole trap level in SiO2, generally reported.
|
2022-07-31T19:58:46.880Z
|
137,055,700 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/maco.201307141",
"MAG": "1687894529",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Aluminum‐based sacrificial anodes were installed to reinforced concrete to stop ongoing corrosion in cooling water tunnels in a Swedish nuclear power plant. The steel rebars were also unintentionally connected to stainless steel water pumps. Therefore, the consumption rate of the sacrificial anodes was higher than predicted. An experimental and a field study were performed to assess if the steel rebar suffer from galvanic corrosion and if the stainless steel pumps are responsible alone for the high consumption rate. It was found from the experimental study that there is an increased risk of galvanic corrosion for steel rebar when the corrosion potential is raised to −200 mV (SCE) for samples with 1% Cl− by mass of cement and −500 mV (SCE) for samples with 2% Cl− by mass of cement. The experimental results were compared with the corrosion potential measured in the cooling water tunnel where sacrificial anodes were in use and not mounted at all. The cooling water tunnel without sacrificial anodes had generally more anodic corrosion potentials compared to the tunnel with anodes. The tunnel with anodes had also more anodic potentials closer to the stainless steel pumps than further away which means that the rebar is affected by the stainless steel pumps. However, the measured corrosion potentials in the tunnels were not as anodic as the potentials needed for high galvanic current measured in the experimental study.
|
2022-09-08T22:34:48.152Z
|
236,389,719 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/00986283211015669",
"MAG": "3163083588",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Background: Findings from the testing effect literature suggest several ways to achieve testing effects in an authentic classroom, but few consider instructor workload, equity, and resources that determine feasibility and sustainability of testing effect methods in practice. Objective: To determine elements and procedures from the testing effect literature for practical application, devise a method for feasibly and sustainably implementing testing effect methods in practice, and determine if a simple way to incorporate retrieval practice into an existing introduction to psychology course was sufficient to observe testing effects. Method: Quiz scores of Introductory Psychology sections with and without retrieval practice were compared. Sections with retrieval practice also compared the effects of repeated and new questions on quiz performance. Results: Students with retrieval practice performed significantly better on quizzes than those without. Repeated and new retrieval practice were equally superior. Conclusion: Retrieval practices can successfully be implemented, feasibly and sustainably, in an authentic classroom environment. Retrieval practice questions can be related to delayed practice questions, rather than exact repeats, to achieve a testing effect. Teaching Implications: Distributing low stakes multiple-choice questions throughout lectures is effective for increasing test performance. The current method was neither burdensome to workload, content, or resources.
|
2022-09-10T11:59:04.727Z
|
22,535,149 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3171/JNS.2002.96.4.0770",
"MAG": "2022801838",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Although in several histological studies of arteriovenous malformation (AVM) nidi the presence of compartments has been documented, no clinical study has been published. The present study was conducted to determine the presence of nidus compartments in clinical cases by using a new radiographic method. Two patients with unruptured and one with a ruptured AVM (all Spetzler-Martin Grade III) were studied. A microcatheter was superselectively introduced into each of two or three feeding arteries of the AVMs under three-dimensional (3D) angiographic guidance to obtain 3D images of the nidus by using rotational digital subtraction angiography. On 3D images the different feeding arteries were found to be independent from one another, which allowed the authors to confirm the presence of compartments. On the other hand, separate feeding arteries often had a common draining vessel. Compartments in AVM nidi were demonstrated by a novel rotational 3D angiographic procedure by using superselective microcatheterization, which should be useful for designing treatment strategies for large and complex AVMs.
|
2022-09-12T06:44:44.738Z
|
57,311,041 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1590/S0100-69912002000600006",
"MAG": "1967927506",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
OBJETIVO: Relatar a experiencia no diagnostico e tratamento do cisto de coledoco no Hospital Municipal Jesus em cinco anos (1996-2001) e a experiencia brasileira publicada para o tratamento do cisto de coledoco em criancas. METODO: Avaliacao prospectiva dos pacientes operados com o diagnostico de cisto de coledoco em cinco anos no Hospital Municipal Jesus. RESULTADOS: Houve predominio de casos diagnosticados pela presenca de dor abdominal recorrente, ictericia e/ou massa abdominal palpavel. Apenas dois pacientes apresentavam a triade completa. Todos os pacientes foram submetidos a ultra-sonografia e houve duvida no diagnostico ultra-sonografico em apenas dois. Todos eram cistos do tipo 1 de Todani tratados atraves de resseccao completa e anastomose biliodigestiva em Y Roux. Houve complicacoes pos-operatorias imediatas em tres pacientes: um caso de hemorragia digestiva alta e dois casos de fistula biliar, um deles relacionado a problemas tecnicos na anastomose que necessitou de reoperacao. O seguimento variou de quatro meses a cinco anos, sem deteccao de complicacao tardia em nenhum caso. CONCLUSOES: O tratamento do cisto de coledoco atraves da resseccao completa na crianca e seguro, relacionado a poucas complicacoes e capaz de resolver por completo a sintomatologia pre-operatoria dos pacientes.
|
2022-11-11T08:12:47.688Z
|
205,770,389 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1039/c0mb00349b",
"MAG": "1989248578",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Secretagogin is a hexa EF-hand Ca(2+)-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. The protein has been noted for its expression in specific neuronal subtypes in the support of hierarchical organizing principles in the mammalian brain. Secretagogin has previously been found to interact with SNAP25 involved in Ca(2+)-induced exocytosis. Here, the cellular interaction network of secretagogin has been expanded with nine proteins: SNAP-23, DOC2alpha, ARFGAP2, rootletin, KIF5B, β-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2, based on screening of a high content protein array and validation and quantification of binding with surface plasmon resonance and GST pulldown assays. All targets have association rate constants in the range 10(4)-10(6) M(-1) s(-1), dissociation rate constants in the range 10(-3)-10(-5) s(-1) and equilibrium dissociation constants in the 100 pM to 10 nM range. The novel target SNAP23 is an essential component of the high affinity receptor for the general membrane fusion machinery and an important regulator of transport vesicle docking and fusion. Complementary roles in vesicle trafficking are known for ARFGAP2 and DOC2alpha in regulating fusion of vesicles to membranes, kinesin 5B and tubulin for transport of vesicles in the cell, while rootletin builds up the rootlet believed to function as a scaffold for vesicles. The identification of a discrete network of interacting proteins that mediate secretion and vesicle trafficking suggests a regulatory role for secretagogin in these processes.
|
2022-11-27T16:17:47.645Z
|
211,796,870 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1108/jbim-01-2018-0051",
"MAG": "2978669690",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study aims to assess how firm functional capability moderates the relationship between two types of open innovation and performance, with a special focus on the role of technological capability and the join effect market information management capability. This paper develops and tests a research model, which assesses how the performance implications of two open innovation forms are shaped by the technological capability and how such an effect is contingent on market information management capability.,Survey data were collected from 238 Chinese high-tech enterprises. Structural equation modeling and linear regression were used to test the data. Then, the main research questions were answered.,Empirically results show that technological capability strengthens the influence of inbound open innovation on firm performance. However, the moderate effect of technological capability on the relationship between outbound open innovation and firm performance remains unsupported. A higher technological capability with a high level of market information management capability increases the efficacy of outbound open innovation in gaining superior performance. Additional analysis shows that when firms implement inbound activities and possess a strong technological capability, they will achieve higher performance if they possess a moderate level of market information management capability, compared with a high or low level.,This paper provides new evidence on the benefits of different open innovation strategies on firm’s performance and, more importantly, the specific firm-level contingencies (technological capability and market information management capability) under which these benefits are more likely to be enhanced. It clarifies what the capabilities are and how they interact to foster the robust open innovation strategies, which sheds new light on the boundary conditions that affect the open innovations–firm performance relationship.
|
2022-12-17T12:01:34.597Z
|
22,878,904 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/rcm.7025",
"MAG": "2137298946",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
RATIONALE
In matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS), volatile small molecules have been nearly impossible to analyze because (1) such molecules evaporate under drying and vacuum conditions and (2) the organic matrix creates matrix peaks in the low mass-to-charge (m/z) range (m/z <500). In this work, the analysis of volatile small molecules using MALDI-TOFMS was realized using (1) a parylene-matrix chip to eliminate the matrix peaks of the organic matrix and (2) graphene for the effective adsorption of the small volatile molecules.
METHODS
The parylene-matrix chip was produced by deposition of a partially porous parylene-N thin film on a dried organic matrix array. The sample solution of volatile small molecules was mixed with the graphene and then placed on the parylene-matrix chip for MALDI-TOFMS. Analogs of chemical agents called dimethyl methyl phosphonate (DMMP) and 2-chloroethylethylsulfide (CEES) were used as model compounds for the small volatile molecules, and the sensing parameters were estimated, such as the limit of detection (LOD) and the detection range.
RESULTS
MALDI-TOFMS based on the parylene-matrix chip and graphene as the adsorbent could achieve a LOD of approximately 1 ppb in the detection range of 1 ppm-1 ppb for the highly volatile DMMP and CEES.
CONCLUSIONS
The parylene-matrix chip with graphene can be applied for the detection of volatile small molecule analytes in the m/z ratio range of small molecules (m/z <500) using graphene as an effective adsorbent.
|
2022-12-17T15:00:58.245Z
|
122,505,993 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2151/JMSJ.2014-401",
"MAG": "2095811796",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Energy balance climatology emerged from the 19th century thermodynamics and radiation research. Energy balance consideration offered an attractive intellectual ground to apply the conservation principle to a natural process. The climate system was often compared to the processes in a steam engine. Research into this field started with insufficient theory of radiation and turbulence, primitive instruments, and limited observational data. In the course of the last 150 years, energy balance climatology gradually gathered advanced theories, continuously improved instruments, newly acquired observation platforms, such as space, and high performance computational capability. In the present article, the processes of climate formation are examined by going back to the principle of energy conservation. Further, the development of this branch of science is presented in five stages characterized by similar stages of theoretical and technical progress. This review visits important steps in the course of these developments and examines their value in reaching the present stage of knowledge. Although the achievements of the last 150 years are impressive, the present understanding of energy balance is far from sufficient. The main problem stems from the fact that the scientific community has not fully used the outcome of laboratory experiments and precision field observations. As high-quality observations are presently being made throughout the entire world, a new and improved knowledge of energy balance will become available in the near future.
|
2022-12-20T20:50:15.168Z
|
239,664,336 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1155/2021/5885366",
"MAG": "3198885846",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://downloads.hindawi.com/journals/geofluids/2021/5885366.pdf"
}
|
Ultralow-permeability reservoirs are difficult to effectively develop using conventional technologies, so it generally produces using horizontal wells’ volume fracturing. Besides, oil wells also face the problems of short stable or no production period, rapid decline rate, and extremely low development degree. Water huff-n-puff of oil recovery technology is a quality and efficiency technology to improve the development effect of an ultralow-permeability reservoir. A systematic study on the related key influential factors of water huff-n-puff is done for improving the development effect of ultralow-permeability reservoirs. This manuscript studied the key influential factors of water huff-n-puff and related improving recovery methods using physical simulation experiments to put forward a beneficial condition for water huff-n-puff, combining with the field practice. The results show that imbibition and energy supplement are main mechanisms of water huff-n-puff; imbibition oil recovery is influenced by rock wettability, permeability, boundary condition, fracture length, water injection speed, and imbibition solution type; the stronger the water-wet reservoir rock is, the bigger the core permeability is, the longer the fracture length is, the larger the contacting area between imbibition solution and rock is, the stronger the ability of imbibition solution to change wettability, and to reduce the interfacial tension force between oil and water is, the better effect of water huff-n-puff is. So far, the field practice of water huff-n-puff has been conducted in 38 wells; the success rate can reach 92.1%, cycle oil increment of single well can reach 972 t, and accumulated oil in evaluation period can reach 36936 t, which further proves that water huff-n-puff can achieve a good effect. The effective methods to improve the development effect of an ultralow-permeability reservoir are changing reservoir physical property and supplying reservoir energy. Higher reservoir energy is good for oil flow, and better physical property can improve the displacement effect and imbibition function of injection solution. Artificial fracturing, higher injection-production ratio, and pretreatment of temporary stoppage fracturing are good methods to improve the development effect of water huff-puff.
|
2022-09-09T18:53:50.636Z
|
13,707,162 |
{
"externalids": {
"ACL": null,
"ArXiv": "0905.4384",
"DOI": "10.4171/CMH/382",
"MAG": "2950171744",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Let G be a group of type E8 of compact type over the field of rational numbers, let K be a field of characteristic 0, and q the 5-fold Pfister form which is the sum of 32 squares. J-P. Serre posed in a letter to M. Rost written on June 23, 1999 the following problem: Is it true that G is split over K if and only if q is hyperbolic over K?
In the present article we construct a cohomological invariant of degree 5 for groups of type E8 with trivial Rost invariant over any field k of characteristic 0, and putting the field of rational numbers for k answer positively this question of Serre. Aside from that, we show that a variety which possesses a special correspondence of Rost is a norm variety.
|
2022-12-02T11:07:55.079Z
|
254,124,580 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/jad.12130",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
INTRODUCTION
The mechanism behind how time perspective (TP) relates to subjective well-being is not fully understood and thinking styles might be potential mediators. However, our understanding of the relationship between thinking styles and subjective well-being is currently limited to adult studies. This study aims to extend the literature by examining the mediating role of thinking styles in the relationship between TP and subjective well-being in an adolescent sample.
METHODS
One hundred forty-nine male and one hundred and fourteen female secondary school students (13-18 years old) in Hong Kong responded to the Thinking Styles Inventory-Revised II (TSI-R2), the Zimbardo Time Perspective Inventory (ZTPI), the Positive and Negative Affect Schedule (PANAS), and the Temporal Satisfaction with Life Scale (TSWLS) in two waves separated by 2 months in 2017.
RESULTS
After controlling for gender and TP, internal and external styles positively predicted positive affect and future life satisfaction after 2 months. Adaptive Type I hierarchical style positively predicted both positive and negative affect after 2 months, which supports the two-dimensional structure of affect. Unexpectedly, maladaptive Type II styles did not predict subjective well-being. Longitudinal mediation using cross-lagged panel model showed that thinking styles mediated three relationships between TP and subjective well-being. The internal style mediated the relationship between Past-Negative TP, positive affect, and future life satisfaction, while the external style mediated the relationship between Future TP and future life satisfaction.
CONCLUSIONS
Thinking styles predicted adolescent subjective well-being and acted as mediators in the relationship between TPs and subjective well-being.
|
2022-12-07T21:14:16.629Z
|
44,934,216 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/LA052222M",
"MAG": "2036746647",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A novel technique to create biomolecular micropatterns of varying complexity on several types of polymer substrates is presented. This method uses a patterned PDMS stamp to preferentially expose or protect areas of an underlying polymer substrate from oxygen plasma. Following plasma treatment, the substrate is immersed in a biomolecular ink, whereby molecules preferentially adsorb to either the plasma-exposed or plasma-protected substrate regions, depending on the particular substrate/ink combination. Using this method, polyethylene (PE), polystyrene (PS), poly(methyl methacrylate) (PMMA), poly(dimethylsiloxane) (PDMS), and poly(hydroxybutyrate/hydroxyvalerate) (PHBV) were micropatterned with different aqueous-based biomolecular inks (i.e., goat anti-rabbit immunoglobulin G, poly-l-lysine, and bovine serum albumin (BSA)). Water contact angle measurements performed on substrates after oxygen plasma exposure showed that the hydrophilicity of substrate areas exposed to plasma was significantly greater than that of areas protected from plasma by the PDMS stamp. In addition, scanning electron microscopy results demonstrated that substrate areas exposed to plasma were physically modified (e.g., roughened) compared to adjacent, protected areas. Areas in contact with a patterned PDMS stamp during plasma exposure were found to be physically unaffected by plasma treatment, and exhibited spatial features/dimensions consistent with the corresponding features of the patterned stamp. Last, protein patterns of BSA on the polymer substrates were stable and distinct after 4 weeks of incubation at 37 degrees C.
|
2022-12-19T10:55:29.268Z
|
2,325,712 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1155/2013/279897",
"MAG": "1608671385",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "http://downloads.hindawi.com/journals/cjgh/2013/279897.pdf"
}
|
BACKGROUND
Adherence to surveillance colonoscopy guidelines is important to prevent colorectal cancer (CRC) and unnecessary workload.
OBJECTIVE
To evaluate how well Canadian gastroenterologists adhere to colonoscopy surveillance guidelines after adenoma removal or treatment for CRC.
METHODS
Patients with a history of adenomas or CRC who had surveillance performed between October 2008 and October 2010 were retrospectively included. Time intervals between index colonoscopy and surveillance were compared with the 2008 guideline recommendations of the American Gastroenterological Association and regarded as appropriate when the surveillance interval was within six months of the recommended time interval.
RESULTS
A total of 265 patients were included (52% men; mean age 58 years). Among patients with a normal index colonoscopy (n=110), 42% received surveillance on time, 38% too early (median difference = 1.2 years too early) and 20% too late (median difference = 1.0 year too late). Among patients with nonadvanced adenomas at index (n=96), 25% underwent surveillance on time, 61% too early (median difference = 1.85) and 14% too late (median difference = 1.1). Among patients with advanced neoplasia at index (n=59), 29% underwent surveillance on time, 34% too early (median difference = 1.86) and 37% later than recommended (median difference = 1.61). No significant difference in adenoma detection rates was observed when too early surveillance versus appropriate surveillance (34% versus 33%; P=0.92) and too late surveillance versus appropriate surveillance (21% versus 33%; P=0.11) were compared.
CONCLUSION
Only a minority of surveillance colonoscopies were performed according to guideline recommendations. Deviation from the guidelines did not improve the adenoma detection rate. Interventions aimed at improving adherence to surveillance guidelines are needed.
|
2022-12-20T04:26:52.228Z
|
221,841,657 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1039/d0cp03246h",
"MAG": "3084002997",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
It is challenging to identify effective electrocatalysts for nitrogen reduction in order to advance electrochemical nitrogen fixation under ambient conditions using methods that are powered by renewable energy. Silicon carbide was investigated computationally as a metal-free, surface-derived catalyst for the electrocatalytic nitrogen reduction reaction. As demonstrated by first-principle calculations, Si-terminated and C-terminated surfaces, with the Si and C as active sites, are all reactive for dinitrogen capture and activation, resembling the catalytic behavior of popular B-based electrocatalysts, but the latter (C-terminated) offers an ultralow over-potential of 0.39 V, which is lower than most metals and alloys, while retarding hydrogen evolution. This research enriches the design of catalysts for dinitrogen fixation under ambient conditions, and also highlights a new direction for Si-based materials for nitrogen reduction.
|
2022-09-01T10:35:46.591Z
|
249,022,392 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ACCESS.2022.3177270",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Internet of Things (IoT) is a network that can communicate between devices without human intervention. In this network, IoT devices collect sensor data and provide them for various applications. However, data collected from the device may include sensitive information. If this information is leaked, several serious problems will occur. Therefore, access control is presented to allow only authorized users to access important data. This paper proposes a model for organizing and managing groups with the group key (GK) so that only the authorized users can share data for access control. In particular, rekeying overhead is reduced. Because the IoT devices are resource-constrained, the network lifetime may be reduced as the rekeying overhead increases. There is a problem when group communication between multiple users is not used. If multiple users can easily access all data, the leakage of sensitive information will increase. To solve this problem, only users who need to share data join in a group based on the hyperledger fabric. Our approach groups users with the same GK and protects sensitive data by using secure communication links within the group. In addition, a trusted agent for rekeying sends a new GK to users in the group. Therefore, the security of data is guaranteed, and the network lifetime is extended. We analyze the storage cost, delay, and processing time for rekeying, and we also compare them according to the number of users and the depth of the key tree. The results of the performance analysis show that the proposed hyperledger fabric-based lightweight group management (H-LGM) outperforms the existing method in terms of storage cost, delay, and processing time.
|
2022-09-30T03:36:32.948Z
|
219,332,268 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4153/S000843952100014X",
"MAG": "3134028475",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract We provide a direct proof of the Medvedev–Scanlon’s conjecture from Medvedev and Scanlon (Ann. Math. Second Series 179(2014), 81–177) regarding Zariski dense orbits under the action of regular self-maps on split semiabelian varieties defined over a field of characteristic
$0$
. Besides obtaining significantly easier proofs than the ones previously obtained in Ghioca and Scanlon (Trans. Am. Math. Soc. 369(2017), 447–466; for the case of abelian varieties) and Ghioca and Satriano (Trans. Am. Math. Soc. 371(2019), 6341–6358; for the case of semiabelian varieties), our method allows us to exhibit numerous starting points with Zariski dense orbits, which the methods from Ghioca and Scanlon (Trans. Am. Math. Soc. 369(2017), 447–466) and Ghioca and Satriano (Trans. Am. Math. Soc. 371(2019), 6341–6358) could not provide.
|
2022-10-21T15:51:32.668Z
|
22,967,717 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1210/JCEM.75.5.1430080",
"MAG": "2033583816",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Due to unfavorable pharmacokinetics of the available androgen esters for substitution therapy of male hypogonadism, there is a demand for new testosterone (T) preparations producing constant serum levels in the physiological range. To assess the pharmacokinetics and pharmacodynamics of the new ester testosterone buciclate (TB) [20 Aet-1] in hypogonadal men a clinical phase I-study was performed. After two control examinations 8 male patients with primary hypogonadism were randomly assigned to 2 treatment groups (n = 2 x 4) given single doses of either 200 (group I) or 600 mg (group II) TB im. Blood samples were obtained 1, 2, 3, 5, and 7 days post injection and then weekly in the course of 4 months. In group I serum androgen levels did not rise to normal values. However, in group II androgens increased significantly and were maintained in the normal range up to 12 weeks with maximal serum levels of 13.1 +/- 0.9 nmol/L (mean +/- SE) in study week 6. No initial peak release of T was observed in either study group. Pharmacokinetic analysis revealed a terminal elimination t1/2 beta of 29.5 +/- 3.9 days and a mean residence time of 65.0 +/- 9.9 days in group II. In one patient in group II dihydrotestosterone levels slightly exceeded the upper normal limit during the study course. Sex hormone-binding globulin remained unchanged and estradiol serum levels never exceeded the normal range in any patient. In group II gonadotropins were significantly suppressed, whereas no change was seen in group I. A significant increase in body weight, hematological parameters, and libido/potency was observed after TB injection which was more pronounced in the higher dose group. Regardless of the dose administered, no significant change was seen in uroflow, prostate volume measured by transrectal ultrasonography, or prostate specific antigen. No adverse side-effects including changes in clinical chemistry were observed. In conclusion, single injections of 600 mg TB in hypogonadal patients show favorable pharmacokinetics and pharmacodynamics. This new long-acting T ester is a promising new agent for substitution therapy of male hypogonadism and for male contraception.
|
2022-12-09T10:05:11.234Z
|
73,148,216 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1442-200X.1981.tb01648.x",
"MAG": "2092618904",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A reproducible and sensitive rubella plaque neutralization test was established utilizing a Japanese, live, attenuated vaccine strain (KRT‐Kitasato, GMK 4/RT 36/RK 1) in a rabbit kidney cell line (RK‐13). Rubella strain, cell line derivation, addition of complement and temperature of incubation were all critical to the efficiency of plaque formation.
|
2022-12-12T06:53:55.868Z
|
254,213,438 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2991/978-2-494069-07-7_19",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://www.atlantis-press.com/article/125976754.pdf"
}
|
. The study entitled Analysis of the Impact of Covid-19 in the Pandemic Era on the socio-economic life and health of scavengers in the Medan Denai District, Medan City was carried out because the Corona Virus (Covid-19) is a new virus that has spread from 2020 to 2022 quickly resulted in social and economic problems that occurred where the scavenger community also felt the impactofCovid-19.Thejobasascavengerisoftenunderestimatedbysomepeople becauseitisclosetoadirtyenvironmentandlowincomeresults.Thisstudyaims toanalyzehowthesocio-economicandhealthimpactsoftheCovid-19Pandemic ErawastescavengersaroundTemporaryDisposalSites(TPS)intheareaofJalan PerjuanganandJalanMentengRaya,MedanDenaiDistrict.Themethodused inthisresearchisqualitativewithadescriptiveapproach.Themethodofdata collectionusingobservationandinterviews.Theresultsshowedthatthesocio-economicandhealthconditionsofthescavengersintheareasofJalanPerjuangan andJalanMentengRaya,MedanDenaiDistrict,overallexperiencedadecrease inturnoverandincomebyupto50%,aswellastheirsociallifeandhealth decreased.Theimplicationofthisresearchisthatitishopedthatpeoplewhowork asscavengersduringtheCovid-19periodpaymoreattentiontohealthprotocols such as wearing masks, washing hands, and keeping a distance when working as scavengers so that their income can increase and can meet the family’s living expenses, especially expenses. child education.
|
2022-12-17T11:21:39.258Z
|
72,355,291 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1001/ARCHSURG.1974.01350300112036",
"MAG": "2060694695",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The seventh edition of a book first appearing in 1932 demands more than a cursory examination. Its position of leadership in the orthopedic literature was firmly established by Mercer, but its recent continuity was assured by Duthie, who has been associated with the book in various capacities for at least 15 years. The book is divided into areas of general and specific knowledge. An excellent introduction to the basic science aspects of the musculoskeletal system comes before discussion of specific affections. A dual approach is used thereafter. Problems that tend to similarly affect most regions of the locomotor system, such as arthritis, infection, and tumors, are dealt with in separate sections. Thereafter a regional approach covering the diseases specific to each anatomic area is followed. The emphasis is on accurate and complete diagnosis, with methods of treatment discussed in a more general way. Excellent references, many of 1971 and 1972
|
2022-01-27T10:29:45.398Z
|
191,561,757 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2298/MUZ0505313S",
"MAG": "1996434456",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
(francuski) Les œuvres de Dejan Despic (1930), inspirees par Dubrovnik: Jadranski soneti op. 17 (1951-1954), Dubrovacki divertimento op. 18 (1952) et Dubrovacki kanconijer op. 96 (1989), revelent, outre leur theme commun, une parente supplementaire importante. Elles sont incitees et, d'une maniere essentielle, mediatisees par la poesie: soit par les vers de Jovan Ducic (1871-1943), poete du Parnasse et symbolisme serbe, soit par la poesie petrarquiste ragusaine. Or, ces compositions ne se montrent pas seulement en tant qu` issues de l`inspiration par la poesie sur Dubrovnik, mais aussi d'un conditionnement spirituel plus profond: de l`inspiration poetique du compositeur lui-meme par Dubrovnik. C`est le sentiment poetique du monde, en tant que constante de la vision creatrice de Dejan Despic, qui provient de cette inspiration particuliere. Ce monde ragusain du compositeur est le monde classique dans une signification universelle du concept, selon la nature meme du milieu evoque. Or, cela n implique pas une monochromie stylistique des compositions considerees. Au contraire, les perspectives musicales de l`impressionnisme, du neoclassicisme, voire, de la neorennaissance, varient ce cadre stylistique general, tout en marquant les traits distincts d'une poetique de composition tres individualisee.
|
2022-09-09T05:21:42.229Z
|
37,048,941 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1364/OFC.2016.TH3J.2",
"MAG": "2324100652",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
With a silicon-based modulator we generate single-polarization 16QAM signals at symbol rates of 63 GBd (252 Gbit/s, 22 fJ/bit, BER = 4.1×10-3). The experiments show a path towards Si-based 500 Gbit/s dual-polarization single-wavelength transmitters.
|
2022-09-15T09:55:07.553Z
|
53,608,879 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3906/ELK-1508-89",
"MAG": "2607215299",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this study, a model is proposed to determine synonymy by incorporating several resources. The model extracts the features from monolingual online dictionaries, a bilingual online dictionary, WordNet, and a monolingual Turkish corpus. Once it has built a candidate list, it determines the synonymy for a given word by means of those features. All these resources and the approaches are evaluated. Taking all features into account and applying machine learning algorithms, the model shows good performance of F-measure with 81.4%. The study contributes to the literature by integrating several resources and attempting the first corpus-driven synonym detection system for Turkish.
|
2022-09-09T04:54:08.428Z
|
214,618,140 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.13702/j.1000-0607.180489",
"MAG": "3012608222",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The literature of experimental research on diet-induced obesity treated with acupuncture was retrieved. The aspects of epigenetics, neuroendocrine system, intestinal flora, inflammatory response, oxidative stress and substance metabolism of the mechanism of acupuncture in the treatment of diet-induced obesity were summarized. It is suggested that the potential mechanism of acupuncture in the treatment of diet-induced obesity should be discussed in the aspects of the interaction of Toll-like receptors on obesity-intestinal flora-immune function, the improvement of insulin resistance, epigenetics and antioxidant stress.
|
2022-12-16T07:21:51.687Z
|
234,924,101 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.17879/MITTELALTERDIGI-2020-3232",
"MAG": "3153183560",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Die Sonne verdunkelnde Schwingen, Zahne scharf und lang wie Schwerter und ein Atem wie Feuer, geschutzt durch einen Panzer stahlharter Schuppen, gebettet auf einem Hort von Gold und Edelsteinen, nur uberwindbar von den tapfersten Helden: Keine Kreatur ist in unserer Vorstellungswelt heute so eng verbunden mit dem Mittelalter wie der Drache. Woher stammen diese Vorstellungen? Und wie stellten sich die Menschen des Mittelalters diese Kreatur vor?
|
2022-02-07T21:29:04.694Z
|
78,954,685 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.14748/SSM.V40I2.531",
"MAG": "2550484298",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Binder syndrome or maxillonasal dysplasia (nasomaxillary hypoplasia) is an uncommon developmental anomaly affecting primarily the anterior part of the maxilla and nasal complex. A 4-year-old boy with maxillonasal dysplasia (Binder's syndrome), featuring maxillary hypoplasia and relative mandibular prognathism, combined with acute leucosis. We review the literature and describe how 3-dimensional CT scanning was used to evaluate the facial morphology. The principal features, diagnosis and management of the syndrome are discussed. Scripta Scientifica Medica 2008; 40(2): 153-156.
|
2022-02-11T04:21:51.118Z
|
84,216,937 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5713/AJAS.2007.789",
"MAG": "1997901109",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A PCR-aided monitoring of verotoxin-producing Escherichia coli (VTEC) was performed over the period of 12 months by using fresh feces collected monthly from 5 dairy cows that had been identified as VTEC carriers. The PCR products were confirmed to be verotoxin genes by Southern hybridization using a gene fragment of verotoxin 2 as a probe. Although seasonal variation of VTEC shedding seemed to depend on each cow, several factors may have influenced the frequency of detection. Shedding of VTEC tended to be reduced during grazing from the middle of May up to the beginning of October. Only one cow was positive for VTEC in August. Dry-off was also suggested to have a depressive effect on VTEC shedding, i.e. 3 of 4 dry cows showed no shedding of VTEC. Contrary to these factors, winter or indoor rearing tended to increase VTEC with only 5/24 samples being negative during the period from November to April. Total VFA concentration was higher (p<0.05) in VTEC-positive feces than in VTEC-negative feces, while fecal pH and VFA proportions were not different. Partial sequences of verotoxin genes from feces of 4 VTEC-positive cows were nearly identical (99-100%), suggesting that gut bacteria sharing the same gene were distributed among the cows. The present results indicate that grazing and dry-off could be factors which reduce VTEC shedding, while winter/indoor rearing may be a factor which increases the shedding, possibly through on-farm interactions.
|
2022-02-28T07:37:15.778Z
|
96,408,141 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/AC00135A038",
"MAG": "2003200845",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this report, the authors describe the first successful coupling of an atmospheric-pressure He ICP to a commercial ICP-MS system. Minor modifications of the load coil and the plasma impedance matching network were made to sustain the annular He ICP in a low-gas-flow torch at a forward power of 500-900 W and a total gas flow of 8 L/min. The objectives of this work were to investigate the feasibility of using a mass spectrometer for fundamental studies in He ICPs and to explore the analytical capabilities of the He ICP-MS system for the determination of halogens and sulfur. Except for this report on the He ICP and an earlier study with an Ar-N/sub 2/ICP all previous investigations of ICP mass spectrometry have been concerned with Ar discharges.
|
2022-12-12T00:25:45.874Z
|
23,200,181 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1469-8749.2009.03416.x",
"MAG": "1999030469",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/j.1469-8749.2009.03416.x"
}
|
Our goal was to examine the feasibility of applying therapeutic robotics to children and adults with severe to moderate impairment due to cerebral palsy (CP). Pilot results demonstrated significant gains for both groups. These results suggest that robot‐mediated therapy may be an effective tool to ameliorate the debilitating effects of CP and provide new opportunities for reducing impairment and improving coordination.
|
2022-12-15T15:16:29.633Z
|
9,205,351 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1600-0773.1989.TB00662.X",
"MAG": "1967082034",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Single intravenous dose pharmacokinetics of theophylline in 10 rabbits were investigated before and after 5 days oral administration of verapamil in daily doses of 6 mg/kg. Verapamil caused a significant inhibition of theophylline elimination. Theophylline clearance was reduced from 126 to 98 ml/hr/kg (22.2%) whereas the steady state volume of distribution of the drug increased from 461 to 550 ml/kg (19.3%). The terminal half-life of theophylline increased from 2.7 to 4.0 hr (49.8%).
|
2022-12-16T04:34:37.789Z
|
15,280,937 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/SEARIS.2014.7152797",
"MAG": "1588436790",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Plasticity of 3D user interfaces refers to their capabilities to automatically fit to a set of hardware and environmental constraints. This area of research has already been deeply explored in the domain of traditional 2D user interfaces. Besides, during the last decade, interest in 3D user interfaces has grown. Designers find with 3D user interfaces new ways to promote and interact with data, such as e-commerce websites, scientific data visualization, etc. Because of the wide variety of Virtual Reality (VR) and Augmented Reality (AR) applications in terms of hardware, data and target users, there is a real interest in solutions for automatic adaption in order to improve the user experience in any context while reducing the development costs. An adaptation is performed in reaction to different criteria defining a system such as the targeted hardware platform, the user's context and the structure and the semantic of the manipulated data. This adaptation can then impact the system in different ways, especially content presentation, interaction techniques modifications and eventually the current distribution of the system across a set of available devices. We present the state of the art about plastic 3D user interfaces. Moreover, we present well known methods in the field of 2D user interfaces that could become relevant for 3D user interfaces. With this survey, we show that current solutions do not meet all plasticity requirements. That is why we propose an action plan to meet these requirements.
|
2022-12-23T01:52:48.786Z
|
234,211,087 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.22491/CMM.A042",
"MAG": "3120941331",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The Global War on Terror has consumed a great deal of American resources since 2001. Operating within Iraq and Afghanistan for almost two decades, the US has failed so far to put together a plan for war termination in the Middle East. This raises the question of whether, or not, al Qaeda’s – along with associated movements’ – strategy and related operations have been successful since war was declared on the United States. To respond to the question, we compared elements of al Qaeda’s plans and actions with Mao Zedong’s theory on how to carry out a protracted war in three stages. By doing so, it sounded reasonable to state that al Qaeda, although fairly successful in implementing its stage 1, failed to evolve its own army-like to deal with stages 2 and 3. It was also observed that neither al Qaeda nor al Qaeda in Iraq have timely reassessed their failing strategy.
|
2022-01-27T03:44:05.266Z
|
75,725,913 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2957/KANZO.51.35",
"MAG": "2315833382",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
症例は76歳女性．肝炎ウイルス陰性，アルコール歴なし．2005年近医で肝S6に腫瘍を指摘され当科受診した．画像診断では肝細胞腺腫や限局性結節性過形成（FNH）などの良性多血性腫瘍が疑われたが，経過観察中に腫瘍増大を認めたため，悪性腫瘍の可能性を否定しえず，2007年5月肝S6部分切除術を施行した．肉眼的に内部は黄色調で一部に出血を伴っていたが，明らかな中心瘢痕は認めず，病理組織学的に異型性のわずかな肝細胞がやや厚い索状構造を伴い増殖し，肝細胞腺腫と診断された．悪性転化の診断に有用とされるβ-cateninなどの免疫組織染色では陽性率は低かった．高齢女性に発生し，鑑別診断が困難であった本症例について，若干の文献的考察とともにこれを報告する．
|
2022-09-12T13:42:00.777Z
|
21,605,007 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1046/J.1440-1584.2002.00484.X",
"MAG": "2158808166",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The main objectives of this project, in rural Western Australia, were to collect information, compare and evaluate the functioning of novel types of psychiatric services, including rooming-in facilities, using outcome measurement tools, and to assess the attitude of mental health professionals towards routine outcome measurement. For the first time in rural health services, two outcome measurement tools were used for this purpose: the Health of the Nation Outcome Scales and the World Health Organization Short Disability Assessment Schedule. While staff at 11 rural sites were trained in the use of outcome measurements, only staff from three sites were able to participate in the data collection that spanned for a year and shed information on 39 patients. Two of these sites were rooming-in facilities with different models of care and patient characteristics. Shortage of staff, lack of adequate local information technology support on sites and technical difficulties limited participation. The assessment of staff attitudes towards routine outcome measurement revealed a need to provide staff with reasons and incentives for incorporating outcome measurement into routine practice, in addition to provision of a thorough and on-going training and support in time and resources from management.
|
2022-09-12T13:31:40.335Z
|
31,962,322 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/stvr.359",
"MAG": "2037255376",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/stvr.359"
}
|
A method for making a castor assembly having an upper fixing plate and a swivelling fork connected to a wheel comprising the steps of splitting the edge of a central aperture in a plate member forming the fixing plate, forming the cage to define a race for rolling elements, forming the remainder of said plate member, to a cup shape including an edge flange disposed in a plane surface spaced axially from said race and covering the fixing plate with a cover having extensions cooperating with said edge flange.
|
2022-12-10T09:02:01.610Z
|
120,510,125 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1063/1.1475372",
"MAG": "1985616503",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The effect of polymer permittivity on wave absorption in the quasi-microwave band has been elucidated for polymer composites containing magnetic metal particles. Absorbers composed of these composites can be thin when their real permittivities are high and their imaginary parts are low. However, in general, for polymer composites the real part actually increases as the imaginary part increases in this band. This implies that in designing absorbers we must choose a polymer species on the crossing area of the real and imaginary parts of the permittivity. Furthermore, to obtain thin absorbers, we should choose a polymer species with high real permittivities and low imaginary parts.
|
2022-12-13T01:28:55.329Z
|
198,275,821 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1096-3642.1994.TB01489.X",
"MAG": "2034031215",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract A morphometric and electrophoretic survey was conducted to examine taxonomic relationships among eight population samples of the Rana narina complex from the Ryukyu Archipelago of Japan and Taiwan. Five discrete morphotypes are differentiated, and these showed considerable genetic differentiation from each other. From the available information, each of the five morphotypes is judged to represent a species, and three are described as new. Rana utsunomiyaorum sip. nov. and R. supranarina sp. nov. are sympatric in Ishigakijima and Iriomotejima islands of the Yaeyama Group, and differ from the other members by having a shorter hindlimb. Rana utsunomiyaorum is the smallest in the complex, while R. supranarina is the largest. Rana amamiensis sip. nov. occurs on Amamioshima and Tokunoshima islands of the Amami Group and, like R. narina from Okinawajima of the Okinawa Group, has a long hindlimb; it differs from the latter species by having a larger body and relatively small tympanum. These two species differ from R. swinhoana from Taiwan by having a narrower disk on the third finger. A key to known species of the complex is given. Further, systematics of the R. narina complex within Rana , body size in the two sympatric species, and sexual dimorphism found in this complex are discussed.
|
2022-12-18T09:55:00.544Z
|
19,337,169 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1545-5300.2012.01394.x",
"MAG": "2045028748",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study explores how family therapy educators from privileged social locations understand issues of privilege and the process by which they integrate their personal and professional journeys to create and model equity in family therapy training and professional development. These educators developed awareness about issues of privilege and oppression and owned their privilege. Increased awareness involved personal struggles with guilt and managing internalized voices of prejudice that are constantly reinforced in society. These educators adopted a stance of action and accountability for equity. We hypothesize that the process leading to owning one's privilege involves the ability to be compassionate for others' suffering and one's own limitations.
|
2022-12-19T04:44:52.357Z
|
139,014,219 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2497/JJSPM.37.605",
"MAG": "2317922084",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Commercially pure titaniu., Co and Al-V alloy powders were mixed to produce the Ti-5wt%Co and Ti-6 wt%Al-4wt%V powders. The powder was processed by the injection molding.Acrylate, atactic-polypropyren e and wax were used as the binder.The carbon and oxygen contents in the sintered specimens were lea s in the case of the two step debinding process compared to that of the conventional debinding process. Addition of Co and Al-V alloy powder promoted the formation of the fine (α+β) two phase structure.The density of specimens sintered at 1300°C in vaccum were 95%.The bending strength of Ti-6Al-4V powder specimen was 1300MPa.
|
2022-09-22T19:24:21.463Z
|
43,636,042 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/JQE.2005.861825",
"MAG": "2370203710",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We present a procedure for the characterization of packaged Er-Yb-codoped phosphate glass waveguides. The procedure is based on precise measurements of the output optical powers when the waveguide is diode-laser pumped at 980 nm. The dependence of these optical powers on the input pump power is then fitted to the results from a numerical model that describes in detail the propagation of the optical powers inside the waveguide. The best fit is obtained for the following parameters: the signal wavelength scattering losses are /spl alpha/(1534)=8.3/spl times/10/sup -2/ dB/cm, the Yb/sup 3+/ absorption and emission cross sections (/spl ap/980 nm) are 5.4/spl times/10/sup -25/ m/sup 2/ and 7.0/spl times/10/sup -25/ m/sup 2/, the Er/sup 3+/ absorption and emission cross sections (/spl ap/980 nm) are 1.6/spl times/10/sup -25/ m/sup 2/ and 1.2/spl times/10/sup -25/ m/sup 2/, the Yb/sup 3+/--Er/sup 3+/ energy-transfer coefficient is 1.8/spl times/10/sup -23/ m/sup 3//s and the cooperative-upconversion coefficient is 8/spl times/10/sup -25/ m/sup 3//s. An approximate method is introduced that allows the determination of the absorption and emission cross section distributions for the erbium /sup 4/I/sub 13/2//spl hArr//sup 4/I/sub 15/2/ transition from the amplified spontaneous emission power spectrum.
|
2022-09-06T05:29:29.147Z
|
32,763,064 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/KAMW.2008.4810658",
"MAG": "2542959569",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Based on the principles of informational differences, non-uniqueness, minimal information, recognition base and acquiescence of the grey system theory, grey natures of the criminal investigation and solving cases are analyzed in this paper. Basic steps of building gray system model and designing relevant computer program of assistant criminal investigation and solving cases are put forward.
|
2022-12-14T03:14:06.300Z
|
249,077,809 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1017/S0036930622000102",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
That Brian Daley opens God Visible: Patristic Christology Reconsidered with the story of Aloys Grillmeier’s Christ in Christian Tradition is not accidental. Grillmeier’s is the standard text in the field and remains, for good reason, an indispensable source for learning the disagreements and compromises that led to Chalcedon’s claim of Christ as one person in two natures. His book is known for its now-standard treatment of pre-Chalcedonian Christology as coming in two forms: logos sarx and logos anthropos. The first account speaks of the incarnation as God becoming flesh, and the second is of God becoming human. Grillmeier largely divides this movement historically, so that conceptions of the incarnation develop steadily from anthropologically deficient ones toward more holistic views of Christ’s person as the period of the Chalcedonian council in 451 approaches. That Daley calls his a ‘reconsideration’ of patristic christology tips his hand: his reconsideration is primarily of Grillmeier. Daley’s concern is not merely methodological. Rather, he argues that Grillmeier trades much for his orderly account of history’s ‘arrival’ at Chalcedon. Grillmeier’s Whiggish view of Chalcedonian orthodoxy, in Daley’s mind, trades order for the true vision available of God in Christ that is revealed only when the full scope of the history of early christological disputes is considered. Chalcedon for Daley is the tradition’s attempt to affirm Nicaea while looking at Jesus. His view shares much in common with Coakley’s ideal of Chalcedon’s regulative function, but there is more at stake here, too. According to Daley, to consider Chalcedon as the final summation of how Christians should think about Christ is to miss many other interesting and important insights in the interest of order and clarity. In his words:
|
2022-12-14T22:05:11.220Z
|
207,640,675 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3899/jrheum.090242",
"MAG": "2067344963",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Objective. To determine factors associated with work in patients with ankylosing spondylitis (AS). Methods. Three hundred fifteen patients with AS were enrolled in a 24-week, randomized controlled study of adalimumab with a longterm, open-label, adalimumab extension phase. Patient-reported outcome (PRO) measures included the Medical Outcome Study Short Form 36 Health Survey (SF-36), AS Quality of Life Questionnaire (ASQOL), Health Utilities Index Mark 3 (HUI-3), and Work Productivity and Activity Impairment-Specific Health Problem Questionnaire (WPAI-SHP). Multivariate logistic regression was used to analyze differences between working and nonworking patients. The relationships between PRO and WPAI-SHP scores were assessed using Pearson correlation coefficients. Multivariate modeling was applied to determine factors associated with productivity while at work. WPAI-SHP was assessed through 3 years of adalimumab exposure. Results. Younger age (p = 0.002) and male sex (p < 0.001) were significantly and independently associated with working patients with AS. The SF-36 Physical Component Summary score (p < 0.001), ASQOL score (p < 0.001), HUI-3 scores (p < 0.001), and both patient’s global assessment of disease activity (p < 0.001) and nocturnal pain (p < 0.001) scores were independently associated with working status. Work absenteeism due to AS was weakly correlated with all PRO scores. WPAI-SHP components of work presenteeism (lack of productivity at work), activity impairment, and overall work productivity loss due to AS were moderately correlated with quality of life as measured by the ASQOL, the SF-36 Physical Component Summary score, and the SF-36 Bodily Pain domain. Linear multivariate analyses indicated that work presenteeism was significantly associated with pain, functioning, and disease activity. Longterm adalimumab treatment was associated with sustained improvements in WPAI-SHP scores. Conclusions. Quality of life and the physical consequences associated with AS have a direct relationship with a patient’s ability to work. Adalimumab sustains improvements in work outcomes in patients with AS.
|
2022-12-17T23:55:07.920Z
|
216,807,442 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21009/spatial.182.01",
"MAG": "3005660599",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "http://journal.unj.ac.id/unj/index.php/spatial/article/download/8910/5967"
}
|
The purpose of this study is to describe phenomena in thematic learning in elementary schools, where the ability to observe is included in the aspect of geographical skills. This research method uses descriptive method with a survey approach, by taking a sample of the school in SDN Rawamangun 12 Pagi, and taking a sample V class .The data analysis technique used is the description technique. Students who make observations can be seen from several activities below: Using various feelings to recognize an object; Record in detail the relevant facts of the object and everything around it; Identify similarities and differences; Using tools and materials to understand objects in detail. The results of this study basically students who study at SDN Rawamangun 12 Pagi have been able to observe social objects in social studies material using guided inquiry methods students experienced a significant increase. The use of models that prioritize aspects of high thinking in students, so that students experience good learning outcomes.
Keywords: Skills, Observations, Social Sciences
|
2022-12-23T22:44:29.501Z
|
11,111,420 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/JESTPE.2015.2475607",
"MAG": "1961152141",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper describes a distributed maximum power point tracking control scheme for photovoltaic (PV) systems at the submodule level. The system employs isolated differential power processing (DPP) converters that require no perturb and observe synchronization and little communication among power converters themselves. Design and benefits of this architecture with respect to control, communication, and converter efficiency are analyzed. Isolated dc-dc converter prototypes are constructed and employed within a string of series-connected PV submodules to experimentally validate the proposed control method. An experimental extraction efficiency of 99.12% is achieved for a three submodule connection with ~30% mismatch-a 10.19% improvement from the conventional, non-DPP architecture.
|
2022-12-29T17:42:26.254Z
|
245,210,349 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21608/jpp.2007.206720",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://jpp.journals.ekb.eg/article_206720_aa3e752135af4f811437165bfec05c41.pdf"
}
|
Peach rosette mosaic virus (PRMV) was detected in naturally infested grapevine (Vitis vinifera cv. Superior) plants growing in the Horticulture Institute Experimental Station Giza Governorate. The virus was found, then to be transmitted by mechanical, nematode (Xiphinema americanum and Meloidogyne incognita) and graft inoculation. Double antibody sandwich enzyme linked immunosorbent assay (DASELISA) was used to detect the presence of virus and to confirm the transmission. As for X. americanum, its effect was more pronounced at the highest nematode inoculum level than in plants infected with virus added to the lowest nematode level. Moreover, on grape plants infected with M. incognita, nematode inoculum levels significantly (P≤ o.o5 and 0.01) increased when nematodes were inoculated alone than when nematode and virus were inoculated simultaneously (where virus source and virus-free bait plants were grown simultaneously in the same pot).
|
2022-01-27T15:50:11.797Z
|
220,133,946 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1136/bmj.2.933.737",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
DR. ANDREW CLARK'S VISIT TO CANADA. THE short stay of Dr. Andrew Clark, the President of the Metropolitan Counties Branch of the British Medical Association, in Canada may perhaps prove an obstacle to any sufficient interchange of views with the profession in Canada as to the formation of a Canadian Branch of the Association. It may, however, be expected that a considerable number of our brethren in Canada may, when the subject is broached, entertain the same views as have lately prevailed in Jamaica, and as are understood to be entertained by many of the profession in Australia. The communion between British and Canadian medical men is based not only upon common scientific interests and pursuits, connection of blood and family relations, unity of language and of government, but also upon commingling of interests and the desirability of a common understanding as to the recognition of degrees, the standard of education and of ethical practice. On all these questions, our Canadian brethren have had, from time to time, to approach the British Government, and to negotiate with our registering and examining bodies. A large number of British graduates are resident in Canada; a large number of Canadian graduates visit this country and take service from time to time in the army, navy, and mercantile marine. In dealing with all local questions where they are affected by imperial decisions,
|
2022-01-24T21:16:35.466Z
|
86,496,207 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1096-3642.1948.TB00548.X",
"MAG": "2095600514",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The following table represents the results of an examination of birds which died in the Society's Gardens between 1939–1946. In no case can the numbers of Mallophaga be regarded as a total count, though the proportion of sexes is probably correct. In the majority of cases the genus only is given. The correct naming of each species would entail a review of each genus.
|
2022-02-10T22:21:18.955Z
|
245,741,617 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.25215/0904.059",
"MAG": "3214383256",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Specific learning disability (SLD) is one of the commonly diagnosed condition among school aged children. SLD often co-occur with other emotional and behavioural disorders, hence early diagnosis and intervention are vital for improving the quality of life of children with SLD. This research study was aimed to explore the intellectual profile of SLD-typical and SLD-ADHD group which is the common comorbid condition on Mallin’s Intelligence scale for Indian children (MISIC). It’s a retrospective cross-sectional study, 354 children referred for psychological assessment due to persistent academic difficulties and who had received a diagnosis of SLD-typical (mixed type), SLD-ADHD (Inattention/Hyperactivity) and SLD with borderline IQ at the end of the clinical evaluation were included. The results revealed that the SLD-typical and SLD-ADHD groups performed similarly on MISIC. All the three groups scored high on VSIQ than PSIQ, both SLD and SLD-ADHD groups obtained higher scores on verbal comprehension index (VCI) and perceptual reasoning index (PRI) compared to working memory (WMI) and processing speed index (PSI). We conclude that the research findings will allow for a richer understanding of the intellectual profile of children with SLD with and without ADHD on MISIC.
|
2022-07-25T19:51:53.661Z
|
88,798,546 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1017/S0890037X00040744",
"MAG": "2479506780",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Field experiments evaluated barnyardgrass, broadleaf signalgrass, and rhizomatous johnsongrass control with clethodim applied with Agri-Dex® crop oil concentrate at 1.0% v/v, the adjuvant Dash® at 1.0% v/v, the methylated seed oil Sun-It II® at 1.0% v/v, a blend of silicone surfactant plus methylated seed oil (Dyne-Amic® at 0.5% v/v) or nonionic surfactant (Kinetic® HV at 0.125% v/v), two silicone surfactants (Sylgard® 309 and Silwet L-77® surfactant) at 0.125% v/v, two other conventional nonionic surfactants (Latron AG-98™ and Induce®) at 0.25% v/v, and the acidified soya phospholipid LI-700®. When compared with the conventional nonionic or silicone-based surfactants and LI-700, clethodim at 70 g ai/ha controlled barnyardgrass more effectively when applied with Dash or Sun-It II. Broadleaf signalgrass and rhizomatous johnsongrass were controlled more effectively when clethodim was applied with Agri-Dex, Dash, Sun-It II, or Dyne-Amic. Clethodim at 70 g/ha applied with Dash or Sun-It II controlled grasses equally or greater than clethodim at 140 g/ha.
|
2022-09-11T01:56:21.537Z
|
93,330,073 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/0471264180.OS063.05",
"MAG": "1626437559",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
(S)-8a-Methyl-3,4,8,8a-Tetrahydro-1,6(2H, 7H)-Naphthalenedione
product: (S)-8a-Methyl-3,4,8,8a-Tetrahydro-1,6(2H, 7H)-Naphthalenedione
intermediate: 2-methyl-2-(3-oxobutyl)-1,3-cyclohexanedione
reactant: 2-Methyl-1,3-cyclohexanedione
reactant: Methyl vinyl ketone, bp 34°C/120 mm
Keywords:
addition, to CC–CO and CC–CN;
annulation, carbocyclic-[6];
cyclization, condensation;
assay methods, of enantiomeric purity of wieland-miescher ketone by NMR analysis with shift reagent;
dimethyl sulfoxide;
shift reagents, chiral;
methyl vinyl ketone
|
2022-09-12T13:43:13.993Z
|
248,425,019 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3389/fpsyg.2022.877288",
"MAG": null,
"PubMedCentral": "9106387"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.frontiersin.org/articles/10.3389/fpsyg.2022.877288/pdf"
}
|
This paper focuses on the characteristics of immersive media technology and the advantages, problems and solutions in applying this technology to improve the teaching effectiveness of ideological and political theory courses in colleges and universities. Firstly, it introduces the current development and characteristics of immersive media technology. Secondly, it analyzed the outstanding advantages of immersive media technology in teaching from the following perspectives: virtual reality and augmented reality; sensory stimulation and emotional experience; and human-computer interaction and self-harmony. Thirdly, it puts forward the ways to improve the teaching effectiveness based on immersive media technology from the aspects of theoretical study, history study, and practical study of ideological and political theory courses in colleges and universities. Finally, it discusses the problems in applying immersive media technology to teaching the above courses and puts forward some solutions.
|
2022-09-22T16:18:25.087Z
|
252,546,924 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3389/fphy.2022.915182",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.frontiersin.org/articles/10.3389/fphy.2022.915182/pdf"
}
|
The influence of the X-ray mirror errors on the performance of the beamline increases as the X-ray beam’s coherence improves in advanced light sources. The spatial dispersion of the X-ray beam is crucial for spatial resolution and field of view. However, selecting the appropriate merit function for expressing light distribution and identifying its relationship to optical error is very important in beamline design. We develop a high-efficiency wave-optics simulation platform and a deterministic analysis model to address this issue. The simulation experiments evaluated merit functions, including Strehl ratio, root-mean-square spot size, and encircled energy radius. We proved that the encircled energy radius is a good metric of the x-ray beam spatial dispersion, which matches the results of the Church-Takacs theory. In addition, it is found that limiting the contribution of the low frequency ( w a v e l e n g t h > 1 10 L ) error is effective for specifying the requirements of X-ray mirrors.
|
2022-09-30T17:23:06.472Z
|
129,946,102 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1029/2017JD027386",
"MAG": "2883014462",
"PubMedCentral": "6473597"
},
"license": null,
"status": null,
"url": null
}
|
Five years of Fe Boltzmann lidar's Rayleigh temperature data from 2011 to 2015 at McMurdo are used to characterize gravity wave potential energy mass density (Epm), potential energy volume density (Epv), vertical wave number spectra, and static stability N2 in the stratosphere 30–50 km. Epm (Epv) profiles increase (decrease) with altitude, and the scale heights of Epv indicate stronger wave dissipation in winter than in summer. Altitude mean E¯pm and E¯pv obey lognormal distributions and possess narrowly clustered small values in summer but widely spread large values in winter. E¯pm and E¯pv vary significantly from observation to observation but exhibit repeated seasonal patterns with summer minima and winter maxima. The winter maxima in 2012 and 2015 are higher than in other years, indicating interannual variations. Altitude mean N2¯ varies by ~30–40% from the midwinter maxima to minima around October and exhibits a nearly bimodal distribution. Monthly mean vertical wave number power spectral density for vertical wavelengths of 5–20 km increases from summer to winter. Using Modern Era Retrospective Analysis for Research and Applications version 2 data, we find that large values of E¯pm during wintertime occur when McMurdo is well inside the polar vortex. Monthly mean E¯pm are anticorrelated with wind rotation angles but positively correlated with wind speeds at 3 and 30 km. Corresponding correlation coefficients are −0.62, +0.87, and +0.80, respectively. Results indicate that the summer‐winter asymmetry of E¯pm is mainly caused by critical level filtering that dissipates most gravity waves in summer. E¯pm variations in winter are mainly due to variations of gravity wave generation in the troposphere and stratosphere and Doppler shifting by the mean stratospheric winds.
|
2022-10-14T00:35:47.548Z
|
225,012,046 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1364/OSAC.406041",
"MAG": "3086935411",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We report record output pulse energies from a cryogenic 8-pass Yb:YLF amplifier system operating at 10 Hz repetition rate. When seeded with 20-mJ, 1-ns stretched pulses, the amplifier produced output pulses with 305 mJ of energy at 1018.5 nm with a spectral width supporting sub-ps pulse-duration. The output beam profile was quite symmetric and had a measured beam quality factor (M2) of ∼1.45. To achieve this performance, the diameter of the beam inside the gain element is gradually increased via an adjustable telescope from around 4.6 mm to 6.2 mm. This enables adjustment of the fluence to a moderate value in subsequent passes: high enough for efficient extraction and low enough to prevent laser induced damage. To our knowledge, this is the highest pulse energy reported from cryogenically cooled Yb:YLF amplifiers to date. Further scaling in peak power and repetition rate is anticipated in future work.
|
2022-11-04T06:07:59.455Z
|
139,075,955 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5104/JIEP.3.431",
"MAG": "2509895668",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
近年,エ レク トロニクス製品は電子デバイスの高密度 ・ 高集積化 により小型 ・高機能な製品が次々と開発 され,人 間の生活 はより一層豊かになって きている。 しかし,こ れ らの電子製品の製造において,電 子部品のプリン ト配線板 への実装時に用いられているはんだに有害金属である鉛が 含 まれてお り,こ のはんだに含まれている鉛 は,寿 命 を迎 えた電子 ・電気製品の廃棄埋め立てに伴 う地中への流出に よる地下水汚染として問題視 されている。 この ような状況下で,NEDO(新 エネルギ開発機構)委 託事業 「鉛 フリーはんだの規格化のための研究開発」が産 業環境管理協会に委託され,日 本溶接協会がその再委託先 の1つ として研究プロジェクトが設立 された。 これまで,鉛 フリー化に対する研究は欧米での研究プロ ジェクト,日 本での各研究機関,会 社で取 り組みが行われ てきた。 しかし,こ れまでの取 り組みは,標 準となる試験 方法,実 験条件の整合がなされないままに行われてきたた め,実 用化に対する判断が各社各様となってお り,様 々な 組成の鉛フリー材料の提案がなされている。使われるはん だ材料が種々雑多になれば,そ れに対するフラックス,電 極めっきの組み合わせなども考えると無限の組み合わせの 中での実装となることが想定される。鉛フリー化 をすべて の製品レベルで実用化するには,ソ ルダリングの原理原則 に立ち返 り,標 準 となる試験 ・評価法に基づいて標準とな るはんだ組成,電 極材料,実 装条件などを見直す必要があ る。 そこで,日 本溶接協会のプロジェク トでは,鉛 フリーは んだの評価試験方法を標準化,な らびに種々提案されてい る鉛フリーはんだの特性の標準化を図ることにより,鉛 ブ リーはんだの実用化への共通尺度 を構築することを目的と して研究を行った。 なお,本 研究プロジェク トでは現状のSn-Pb共 晶はんだ による実装(材 料構成,実 装条件 など)を ベースにするの ではな く,鉛 フリー候補合金材料の特性 をベースに して, その材料を用いたときに,適 用可能 となる実装条件範囲, 材料構成などを明確 にすることを目指 したものである。
|
2022-12-03T18:33:15.313Z
|
233,524,646 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3238/ARZTEBL.M2021.0186",
"MAG": "3139056508",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Occupational exposure to SARS-CoV-2 does not just cause a significant number of cases of occupational disease, it also significantly more frequently results in severe COVID-19 disease in medical staff (1, 2). Aerosol-generating procedures such as intubation and ventilation, large numbers of patient contacts, or specialty-related close patient contact require the use of tightly fitting respirator masks. Filtering respirators
|
2022-08-23T23:04:29.261Z
|
220,234,863 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1136/bmj.2.1821.E81",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
(402) L.umlbar Puncture. QUINCHE (Berl. klin. Woch., October 14th, 1895) mentions the fact that the cerebrospinal fluid can distend the dural sac down to the sacral canal, and that some fluid may be drawn off even in the normal state by an exploring needle. No injury is done to the nerve roots by introducing the needle. In pathological states the condition of the fluid or the amount of the pressure is altered. This pressure should always be measured at the same as the puncture is made. This may be done by attaching indiarubber and glass tubing to the cannula, and noting the height to which the fluid rises about the level of the puncture when the glass tube is held in a vertical position. The normal cerebrospinal fluid has a specific gravity of 1007, and contains 0.2 to 0.5 pr. m. albumen and a little sugar. The author has used spinal puncture in 53 cases of various kinds, mostly when the pressure has been increased, as in cerebral tumour, hydrocephalus, and various forms of meniDgitis. The fluid is then mostly clear, more rarely turbid with leucocytes, etc., or discoloured with blood. The amount of alhumen present is increased in acute inflammation up to 1 to 3 pr. m.; in chronic inflammatory conditions it exceeds the normal very slightly or not at all; and in cerebral tumour it may amount to 7 pr. m. Sugar is often absent in inflammation. In cerebral hremorrhage rupturing into the ventricles, the fluid may contain blood. Cocci of various kinds may sometimes be found in the turbid fluid, or tubercle bacilli in the deposit or coagulum. Increased pressure is present in meningitis, but especially in tumour. Thus it would appear that moderately increased pressure with severe pressure symptoms points to an acute affection, whereas greatly increased pressure with slight pressure symptoms to a chronic one. The amount of fluid withdrawn in his cases varied from 3 to 60 c.cm., and gave an average of 20 c.cm. The diagnostic value of the puncture is very obvious from these facts. The local pain is slight, and anresthesia is extremely rarely necessary. In a few cases pain or a spastic stretching in one leg was noticed, but this passed off at once, or at most in twenty-four hours. The effect upon a distended fontanelle was obvious. In some cases a remission of some of the symptoms was noted after or during the puncture. In chronic lesions this was much less marked than in the acute. Therapeutic results were noted in serous or sero-puiulent meningitis, and these will become more frequent when spinal puncture is adopted earlier, and more frequently in the various acute forms of meningitis. The author describes the apparatus which he uses in spinal puncture. The technique is very simple. The needle is introduced in the middle line in children, and 5 to 10 mm. to the right in adults, the patient lying on the left side with the legs drawn up. If the needle impinges on bone it is slightly withdrawn and the direction altered. The author has never used aspiration like Fuirbringer. In cases where the prassure rises more or less quicklvafterpuncture the author has attempted to secure permanent drainage by incising the dura mater with a special scalpel. Here a few drops of fluid may escape at once, but more often the fluid drains away into the tissues, causing more or less cedema. He has never seen bad results follow this procedure.
|
2022-01-27T02:45:42.373Z
|
103,665,900 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1126/science.358.6366.1016-g",
"MAG": "2770114751",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
Inorganic Chemistry
The high-symmetry “buckyball” structure of C60 captured the imagination as a reflection of nature's intrinsic elegance at the molecular scale. Wang et al. now report a similar icosahedral cage composed of 180 silver ions, capped and compensated by an array of organic thiolate
|
2022-04-22T04:41:27.760Z
|
2,270,120 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/00140130500122573",
"MAG": "2022367373",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Ontologies, as a possible element of organizational memory information systems, appear to support organizational learning. Ontology tools can be used to share knowledge among the members of an organization. However, current ontology-viewing user interfaces of ontology tools do not fully support organizational learning, because most of them lack proper history representation in their display. In this study, a conceptual model was developed that emphasized the role of ontology in the organizational learning cycle and explored the integration of history representation in the ontology display. Based on the experimental results from a split-plot design with 30 participants, two conclusions were derived: first, appropriately selected history representations in the ontology display help users to identify changes in the ontologies; and second, compatibility between types of ontology display and history representation is more important than ontology display and history representation in themselves.
|
2022-09-15T09:44:33.403Z
|
153,370,451 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3162/036298003X200944",
"MAG": "2000251565",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This article characterizes the electoral consequences of messages of institutional loyalty and disloyalty sent by incumbent House members to their constituents. We show that, for the contemporary House, there is variation in these messages�not all incumbents in the contemporary House �run for Congress by running against Congress.� Moreover, we show that these messages can, under the right conditions, have significant electoral consequences, even after controlling for party affiliation and district political factors. In addition to demonstrating the electoral relevance of legislators' presentations, our results show an incumbent-level link between constituents' trust in government and their voting behavior�a link created by interaction between constituents' perceptions, legislators' party affiliations, and the messages that legislators send to their constituents.
|
2022-09-15T19:45:20.331Z
|
86,564,304 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1107/S1600536807046181",
"MAG": "2087331148",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In the title compound, C16H18FN3O2, the benzene and pyrimidine rings are oriented at a dihedral angle of 55.92 (2)°. In the crystal structure, intermolecular N—H⋯N and C—H⋯F hydrogen bonds are found.
|
2022-09-07T03:22:09.448Z
|
55,189,737 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5334/JOPD.34",
"MAG": "2801835318",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This dataset contains three repeated measures of a standard reward-based reinforcement-learning task from 29 healthy male individuals who participated in three experimental sessions exploring cognitive placebo effects on reward learning. The dataset includes behavioural data (accuracy, reaction times) during learning and transfer, estimates of model-free computational analysis, self-reported arousal values, and expectations about the interventions’ efficacy. The data were collected in 2014 at the Department of Clinical Neurophysiology, University Medical Center Goettingen, Germany. The data collection and formal analysis used a triple-blind study design as participants, operator and analyst were unaware of conditions. A github repository contains data and analyses for the paper “Placebo Intervention Enhances Reward Learning in Healthy Individuals”. The dataset can be used for further analysis, reference, validation studies, teaching purposes, and collaborative research. Funding statement: This study was supported by the DFG (PA 419/15-1) awarded to WP. The preparation of this manuscript was supported by the “Research program, University Medical Center, University of Goettingen” awarded to Z.T.
|
2022-12-03T17:41:06.579Z
|
2,084,563 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/BI7001168",
"MAG": "2088204596",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Cysteine biosynthesis in plants is partly regulated by the physical association of O-acetylserine sulfhydrylase (OASS) and serine acetyltransferase (SAT). Interaction of OASS and SAT requires only the 10 C-terminal residues of SAT. Here we analyze the thermodynamics of formation of a complex of Arabidopsis thaliana OASS (AtOASS) and the C-terminal ligand of AtSAT (C10 peptide) as a function of temperature and salt concentration using fluorescence spectroscopy and isothermal titration calorimetry (ITC). Our results suggest that the C-terminus of AtSAT provides the major contribution to the total binding energy in the plant cysteine synthase complex. The C10 peptide binds to the AtOASS homodimer in a 2:1 complex. Interaction between AtOASS and the C10 peptide is tight (Kd = 5-100 nM) over a range of temperatures (10-35 degrees C) and NaCl concentrations (0.02-1.3 M). AtOASS binding of the C10 peptide displays negative cooperativity at higher temperatures. ITC studies reveal compensating changes in the enthalpy and entropy of binding that also depend on temperature. The enthalpy of interaction has a significant temperature dependence (DeltaCp = -401 cal mol-1 K-1). The heat capacity change and salt dependence studies suggest that hydrophobic interactions drive formation of the AtOASS.C10 peptide complex. The potential regulatory effect of temperature on the plant cysteine synthase complex is discussed.
|
2022-12-04T00:48:44.420Z
|
13,023,795 |
{
"externalids": {
"ACL": null,
"ArXiv": "astro-ph/0007353",
"DOI": "10.1086/312870",
"MAG": "2963208485",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "http://iopscience.iop.org/article/10.1086/312870/pdf"
}
|
A new scenario for extracting energy from a Kerr black hole is proposed. With magnetic field lines connecting plasma particles inside the ergosphere with remote loads, the frame dragging twists the field lines so that energy and angular momentum are extracted from the plasma particles. If the magnetic field is strong enough, the energy extracted from the particles can be so large that the particles have negative energy as they fall into the black hole. So, effectively, the energy is extracted from the black hole. The particles inside the ergosphere can be continuously replenished with accretion from a disk surrounding the black hole, so a transition region with a sufficient amount of plasma is formed between the black hole's horizon and the inner edge of the disk. Thus, the energy can be continuously extracted from the black hole through the transition region. This may be the most efficient way for extracting energy from a Kerr black hole: in principle, almost all of the rotational energy (up to ≈29% of the total energy of the black hole) can be extracted.
|
2022-12-29T19:03:31.158Z
|
25,706,518 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICEAA.2017.8065452",
"MAG": "2764290310",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper presents our recent theoretical advances in extreme scattering engineering using metamaterials and nanostructures. Here, and in our conference talk, we will first briefly discuss the fundamental limitations (or lack thereof) on the possibility of reducing or enhancing the electromagnetic scattering cross section of a material body, as well as other bounds stemming from passivity, causality and reciprocity. We will then present our recent work on extreme scattering effects, anomalies and singularities in passive and active open systems, including embedded eigenstates, exceptional points, optical vortices, etc. We will also discuss the relation of these effects with emerging concepts of topological physics. These singularities enable intriguing electromagnetic phenomena, such as light trapping, unidirectional invisibility, slow light, enhanced emission/absorption, which may have important practical implications for nanophotonic devices and systems.
|
2022-02-12T18:06:25.209Z
|
100,532,825 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.17137/KORRAE.2016.24.3.101",
"MAG": "2555176726",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
: Concentrations of Chromium(Cr) and Manganese(Mn) in several kinds of dewatered organic sewage sludges generated from wastewater treatment plants of Pocheon City, Gyeongii Province were examined. In addition, bioaccumulations of Cr and Mn in the body of earthworm Eisenia fetida were also investigated by changing of feed sludge amounts. Cr and Mn concentrations in sludges were in the range of 0.0 ∼ 0.3 mg/kg and 3.6 ∼ 17.6 mg/kg, respectively, which would not cause acute toxicities to earthworm population. Cr was bioaccumulated in the earthworm body but bioaccumulation was not proportional to the amount of sludges supplied. The degree of bioaccumulation of Cr decreased in later phase as the supplied amounts of sludges increased. Meanwhile, there were rare bioaccumulation with regard to Mn. In this study, the value ranges of bioaccumulation factor (BAF) for Mn were 0.00 ∼ 0.12 when 60g of sludges was supplied. In the case of Cr, the value of BAF was 19.33 when 60g of human manure sludge was provided.
|
2022-07-31T09:04:54.985Z
|
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