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255M
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206,321,445 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1103/PHYSREVLETT.62.1937",
"MAG": "2007274290",
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|
A low-energy equivalence between two apparently unrelated Lagrangians with fractional statistics is reported. Exploiting this equivalence, it is possible to study the quantum disordered phase of the nonlinear sigma model with Hopf term. It is found that the quasi-particles in the disordered phase also have fractional statistics. There appears to be a dual relationship between the ordered and disordered phases.
|
2022-12-11T10:44:55.928Z
|
39,790,760 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/BI001441Y",
"MAG": "2081304983",
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},
"license": null,
"status": null,
"url": null
}
|
Most proteins are denatured by heat treatment, and the process is usually irreversible. However, some proteins, such as hyperthermophilic proteins are known to be stable even at the boiling temperature of water. We here describe a systematic investigation of thermal behavior of proteins by purifying and characterizing some heat-resistant proteins (HRPs) that are not aggregated upon heat treatment. Although most proteins were precipitated by boiling in a water bath, about 20 and 70 wt % of total proteins appeared to be heat-resistant in Jurkat T-cell lysates and human serum, respectively. We identified major HRPs from Jurkat T-cells and human serum by N-terminal amino acid sequencing and Western blot analysis. HRPs of 20 and 45 kDa (HRP20 and HRP45) were identified as alpha-synuclein and calreticulin, respectively, and HRPs of 60, 27, and 16 kDa (HRP60, HRP27, and HRP16) were identified as human serum fetuin, apolipoprotein A-I, and transthyretin, respectively. By a systematic investigation of the effect of heat on the secondary structure of the purified HRPs by circular dichroic spectroscopy, we observed four major types of thermal behavior, suggesting that the proteins could protect themselves through these pathways. Although our analysis is restricted to protein secondary structural changes, our data indicate that heat resistance of protein can be achieved in several different ways depending on the thermodynamic stability of native (N), unfolded (U), denatured (D), and intermediate (I) states.
|
2022-12-12T18:43:15.144Z
|
1,572,412 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3113/FAI.2007.0214",
"MAG": "2064006045",
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},
"license": null,
"status": null,
"url": null
}
|
Background: Gymnastics is a competitive and popular sport that is started at an early age, and elite female gymnasts reach their prime in mid-teenage years. The level of intensity of practice and competition, the number of events, and the degree of difficulty of the maneuvers make gymnastics one of the most injury-producing sports. Methods: Over a 3-year period, 14 elite, female gymnasts were seen in one foot and ankle center. The mean age was 17 (range 14 to 21) years. All gymnasts sustained acute or sub-acute injuries to the foot or ankle requiring surgery. The mechanism of injury, the type of injury, operative repair, and followup were recorded. Results: There were five Lisfranc fracture-dislocations, and five talocalcaneal, two multiple metatarsal, one medial malleolar, one phalangeal, and one sesamoid fracture. All injuries had operative repair. One gymnast with a Lisfranc injury was able to return to full competition; all others with a Lisfranc injury retired from gymnastics, were lost to followup, or graduated from college. One gymnast with a talar osteochondral injury was not able to return to competition but all other injured gymnasts were able to return to gymnastics at the same level or higher. Conclusion: Elite female gymnasts can sustain significant injury to the foot and ankle region. In our study, Lisfranc injuries were most likely career-ending.
|
2022-12-17T10:57:40.908Z
|
16,358,622 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5483/BMBRep.2016.49.8.079",
"MAG": "2414729055",
"PubMedCentral": "5070728"
},
"license": null,
"status": null,
"url": null
}
|
MG53 is a member of the TRIM-family protein that acts as a key component of the cell membrane repair machinery. MG53 is also an E3-ligase that ubiquinates insulin receptor substrate-1 and controls insulin signaling in skeletal muscle cells. Since its discovery in 2009, research efforts have been devoted to translate this basic discovery into clinical applications in human degenerative and metabolic diseases. This review article highlights the dual function of MG53 in cell membrane repair and insulin signaling, the mechanism that underlies the control of MG53 function, and the therapeutic value of targeting MG53 function in regenerative medicine. [BMB Reports 2016; 49(8): 414-423]
|
2022-12-19T04:08:42.371Z
|
110,206,649 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/TCS.1983.1085277",
"MAG": "2038534140",
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},
"license": null,
"status": null,
"url": null
}
|
An RC op amp chaos generator is presented with experimental results showing the practicality and convenience of the system. The circuit is achieved by inserting dynamics on a nondynamic semistate variable of a second-order bent hysteresis Lienard system, the idea stemming from observations of Shinriki et al.
|
2022-12-20T06:33:59.088Z
|
136,424,372 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/0957-4484/16/1/003",
"MAG": "2031476466",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
An economic method is presented to grow undoped/doped tungsten oxide nanowires with high purity and erect orientation, simply by heating a tungsten filament in a vacuum chamber with some room air leakage. Tungsten oxide nanowires were studied using scanning electron microscopy (SEM), energy dispersion x-ray spectroscopy (EDS) and transmission electron microscopy (TEM). Wires are found standing straight and clean on the filament, nm in diameter and up to a few tens of micrometres long. The composition along the wire is uniform for all elements including dopants.
|
2022-12-28T18:36:58.419Z
|
193,720,965 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.29344/07194145.30.394",
"MAG": "2621944053",
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "https://dialnet.unirioja.es/descarga/articulo/7392154.pdf"
}
|
Resena: Historia de los Hermanos de La Salle en Chile. Hno. Enrique Garcia Ahumada, FSC. Santiago de Chile: La Salle, 2013, 305 paginas
|
2022-02-08T08:20:32.414Z
|
9,825,982 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1523/JNEUROSCI.04-12-03112.1984",
"MAG": "2127716952",
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},
"license": null,
"status": null,
"url": null
}
|
Metalloendoprotease activity was identified in retinal homogenates using a synthetic fluorogenic metalloendoprotease substrate and specific metalloendoprotease inhibitors. The requirement of metalloendoprotease activity in neurotransmitter release was examined during the depolarization-induced release of [3H]glycine from the retina of Xenopus laevis. Neurons with high affinity uptake and calcium- dependent, K+-stimulated release of glycine have been described previously in this retina. When isolated retinas preloaded with [3H]glycine are depolarized by 22 mM K+, the usual efflux of [3H]glycine is completely abolished by the metalloendoprotease inhibitor, 1,10-phenanthroline (100 micrograms/ml). The inhibition of [3H]glycine release by 1,10-phenanthroline is dose dependent; furthermore, 1,10-phenanthroline blocks release by chelating metal and not Ca2+, since addition of equimolar calcium does not alter the inhibition. The metalloendoprotease inhibitor, carbobenzoxy (CBZ)-L- phenylalanine, also prevents release, whereas the amino acid, L- phenylalanine, has no effect. Synthetic carbobenzoxy dipeptide amides which are metalloendoprotease substrates (e.g., CBZ-Gly-Leu-amide, CBZ- Ser-Leu-amide, and CBZ-Gly-Phe-amide) also prevent [3H]glycine release in a dose-dependent and reversible manner. The synthetic dipeptide CBZ- Gly-Gly-amide, however, is not a metalloendoprotease substrate and has no effect on release. The ability of synthetic dipeptides to inhibit neurotransmitter release is amino acid specific, dose dependent, reversible, and matches their ability to interact with characterized metalloendoproteases. Depolarization-stimulated transmitter release may therefore require the activity of a metalloendoprotease.
|
2022-02-13T07:22:20.112Z
|
137,695,227 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/PI.4160",
"MAG": "2125777770",
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},
"license": null,
"status": null,
"url": null
}
|
Two supplementary approaches in terms of thermal degradation kinetics and Taguchi's experimental design were employed toward developing a design effort for intumescent coatings. A model intumescent system including ammonium polyphosphate (APP), pentaerythritol (PER), melamine (MEL), thermoplastic acrylic resin and liquid hydrocarbon resin was chosen and then subjected to thermogravimetric analysis and heat insulation tests to provide experimental data. Kinetic analysis of the thermogravimetric data based on the Friedman and Kissinger methods revealed that activation energy (Ea) and reaction order (n) could be used as parameters to accurately judge whether the selected intumescent components represented coordinated thermal characteristics. Examination of the calculated Ea and n values showed that the decomposition of thermoplastic acrylic resin and liquid hydrocarbon resin occurred first and that the APP, PER and MEL components were degraded immediately after. Such a degradation sequence was quite consistent with the functional mechanism of intumescent systems. In addition, simultaneous implementation of analysis of variance and mean effect assessment on the Taguchi data demonstrated that the designed formulation, based on the optimized coupling of 10 g MEL into APP/PER 25 g/11 g, exhibited the highest fireproofing time among the prepared coating samples. The APP content had the most important contribution to the flame retardant behaviour, and APP versus PER interactions showed the highest severity index. Scanning electron microscopy showed that the higher flame retardancy of the optimized sample was related to the presence of a large number of micropores in the expanded charring layer structure. Copyright © 2012 Society of Chemical Industry
|
2022-04-29T20:51:41.891Z
|
24,585,266 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1055/S-2008-1046510",
"MAG": "2024460094",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A 3 1/2 month old girl was found to have a large abdominal tumor originating in the upper pole of the right kidney. At laparotomy the tumor had infiltrated the perirenal fat, the right lobe of the liver and the diaphragm. Partial nephrectomy was performed and the tumor was completely resected. However, an adequate safety margin could not be achieved. Histology showed a congenital mesoblastic nephroma of the cellular subtype. Postoperatively no chemotherapy was considered necessary. 11 months after diagnosis the patient had an extensive local recurrence with infiltration of the perirenal fat, mesenterium and colon. Complete resection could not be achieved and the tumor was classified as stage III. There was a striking morphological change from spindle cells in the initial tumor to malignant round cells in the relapse specimen. The patient was treated with Vincristine, Actinomycin-D and Adriblastin. Radiotherapy was not given. 38 months after relapse the patient is free of disease and developing normally. Our patient obviously had an aggressive variant of CMN. The significance of the potentially aggressive variant of CMN, atypical mesoblastic nephroma, is discussed and possibilities are suggested for management.
|
2022-07-30T05:23:11.961Z
|
215,803,976 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2340/16501977-2663",
"MAG": "3016383177",
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://www.medicaljournals.se/jrm/content_files/download.php?doi=10.2340/16501977-2663"
}
|
Missing (Cochrane Corner).
|
2022-09-09T05:09:17.371Z
|
97,377,345 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1142/S0218625X99000871",
"MAG": "2095617554",
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},
"license": null,
"status": null,
"url": null
}
|
The (001) surface of a Au3Pd single crystal was studied with different surface analytical techniques. The main results reported about structure, composition and dynamics of the surface are based on ion scattering methods and LEED. We find segregation of Au to the surface forming a complete Au overlayer. The second layer has approximately the bulk Pd concentration. There is no evidence for chemical order in the near surface layers, i.e. Pd is randomly distributed in the lattice. The Au and Pd atoms in the first and the second layer respectively have approximately the same thermal vibrational amplitudes.
|
2022-09-23T00:30:02.533Z
|
123,258,831 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/02678299108055002",
"MAG": "2092152789",
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},
"license": null,
"status": null,
"url": null
}
|
Abstract Here the method of propagation of optic modes to examine the alignment in a ferroelectric liquid crystal layer is fully discussed. A sample geometry which allows the excitation of optic modes in a ferroelectric liquid crystal cell is presented and the data obtained in terms of reflectivity. The data are analysed by modelling the expected reflectivity from such a cell for a selection of proposed models for the optic tensor configuration. Models where the smectic layering lies perpendicular to the cell surfaces, or bends slowly across a cell are seen to be incorrect. It is found that a discontinuity in the smectic layering in the middle of the cell must be included to model the data well. This is consistent with the chevron structure seen in X-ray scattering work, and leads to an optic tensor alignment which is largely uniform across the ferroelectric layer. The relation between this and observation of conventional ferroelectric cells is discussed.
|
2022-09-15T12:49:10.211Z
|
197,725,493 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.24106/KEFDERGI.2497",
"MAG": "2921966065",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The aim of the study is to develop a computer self-efficacy scale (CSES) to assess teachers’ computer self-efficacy beliefs in terms of technology integration. A valid and reliable instrument is a need for technology integration studies because computer self-efficacy has been shown as a generic variable in different technology adaptation studies. This scale provides with an alternative measurement for researchers through a major focus on technology integration related dimensions. 110 pre-service, and 134 in-service teachers participated in the study. Exploratory and confirmatory factor analyses, and reliability analyses indicated high validity and reliability of CSES. Five subscales were revealed and confirmed after EFA and CFA. Each factor has reliability coefficients higher that .89. All the results supported that CSES is an acceptable instrument to measure teachers’ computer self-efficacy beliefs.
|
2022-12-11T06:30:29.475Z
|
34,579,990 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1126/SCIENCE.6301016",
"MAG": "2039251849",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Empty capsids of polyoma virus interact with DNA in a cell-free system to form polyoma-like particles (PLP). The DNA in these particles is protected from the action of pancreatic deoxyribonuclease. Transfer of genetic information by PLP has been accomplished by using a restriction fragment containing the transforming sequences of polyoma DNA as a model gene. Infection of rat F111 cells by PLP containing these sequences results in DNA-mediated cellular transformation. Gene transfer by PLP is 50 to 150 times more efficient than by the calcium phosphate precipitation method.
|
2022-12-19T14:55:59.982Z
|
246,836,781 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3390/app12041904",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.mdpi.com/2076-3417/12/4/1904/pdf?version=1644829521"
}
|
The aim of this study was to examine the effects of different agility training methods on skill-related physical capabilities in young volleyball players. Twenty-seven young female volleyball players were randomly assigned to a shuttle-run training group (STG, n = 9), an agility-ladder training group (ATG, n = 9), and a control group (CG, n = 9). The intervention program was carried out three times a week for six weeks. Before and after the training period, participants’ 10 m sprint (10 MS), agility T-test, and digging agility test (DAT) performances were assessed. Within-group analysis showed significant improvements (p < 0.05) in the DAT, agility T-test, and 10 MS performance from pre- to post-test for the STG (6.08%, 2.64%, and 5.68%, respectively) and ATG (4.05%, 3.28%, and 3.27%, respectively). In the group analysis, there were significant differences (p < 0.05) between the STG and CG in the DAT and agility T-test. The STG and ATG were significantly superior to the CG in the 10 MS (p < 0.05). In conclusion, the results indicate that appropriate agility training can enhance the agility of lateral movements and speed of sprinting, as well as enable players to rapidly complete movements during a moving defense.
|
2022-12-19T17:00:26.305Z
|
52,915,669 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.34763/devperiodmed.20182203.255259",
"MAG": "3008691248",
"PubMedCentral": "8522884"
},
"license": null,
"status": null,
"url": null
}
|
Abstract The method and technique of feeding a young child affect the shape of the maxillofacial complex. Breastfeeding is the recommended method of feeding in the first six months of life. It is encouraged to continue natural feeding in later months, simultaneously developing other food extraction techniques. The correct formation of the stomatognathic system is a result of the correct organization of the motor patterns during feeding.
|
2022-02-11T22:06:01.878Z
|
122,076,722 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1117/12.855497",
"MAG": "2027589087",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Detecting dominant points is an important subject in pattern recognition and computer vision. The paper sums up the traditional corner detection methods based on Freeman codes and presents a new way to detect corner. Firstly, the points are classified using the differential code and the exact corners and uncertain corners are got. Then the curvature of the uncertain corners is calculated, and the points whose curvature is greater than the threshold are candidate corner. At last the right corners based on the Moving Line method is got. Experimental results show that the proposed method is superior to the conventional methods. Besides, the proposed method can be carried out more quickly.
|
2022-02-09T19:32:55.464Z
|
16,440,581 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5121/IJSEA.2015.6203",
"MAG": "2333260944",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
It is a well-known fact that precise definitions play significant role in the development of correct and robust software. It has been recognized and emphasized that appropriately defined formal conceptual framework of the context/problem domain proves quite useful in ensuring precise definitions, including those for software metrics, which are consistent, unambiguous and language independent. In this paper, a formal conceptual framework for defining metrics for component-based system is proposed, where the framework formalises the behavioural aspects of the problem domain. The framework in respect of structural aspects has been discussed in another paper.
|
2022-04-22T04:44:51.046Z
|
196,708,739 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/CHIN.201344200",
"MAG": "1984372146",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A total synthetic approach towards the title compound (VII), a natural compound from Acremonium zeae with interesting phytotoxic activity, is presented from orcinol monohydrate and involves 9 steps.
|
2022-09-07T12:15:35.923Z
|
199,008,483 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2991/ICHSSD-19.2019.116",
"MAG": "2960878951",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Online taxi tourism is one of the important ways of daily tourism. The operator carries out a single evaluation method for the driver's service quality, lacking a comprehensive study of service quality from multiple dimensions of order activity satisfaction, resulting in a high degree of hidden danger to passenger safety and rights. In this paper, an improved principal component analysis (PCA) method, namely Fuzzy C-Mean Clustering (FCM-PCA) based on PCA, is proposed. Experiments show that in the research of target object evaluation, the principal component values and principal component scores of target samples can be used as new indicators for clustering, so as to improve the efficiency of high-dimensional data clustering on the basis of reducing information loss. This study provides a way of thinking for the selection of important service components and a research method for the comprehensive analysis of different drivers' service levels.
|
2022-02-08T05:55:19.480Z
|
44,492,571 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2166/wst.2015.471",
"MAG": "2323235637",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
An upflow anaerobic sludge bed (UASB) system with sludge immobilized on granular activated carbon was developed for fermentative hydrogen production continuously from herbal medicine wastewater at various organic loading rates (8-40 g chemical oxygen demand (COD) L(-1) d(-1)). The maximum hydrogen production rate reached 10.0 (±0.17) mmol L(-1) hr(-1) at organic loading rate of 24 g COD L(-1) d(-1), which was 19.9% higher than that of suspended sludge system. The effluents of hydrogen fermentation were used for continuous methane production in the subsequent UASB system. At hydraulic retention time of 15 h, the maximum methane production rate of 5.49 (±0.03) mmol L(-1) hr(-1) was obtained. The total energy recovery rate by co-production of hydrogen and methane was evaluated to be 7.26 kJ L(-1) hr(-1).
|
2022-12-03T09:47:44.456Z
|
135,832,546 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4028/www.scientific.net/KEM.457.267",
"MAG": "2033795287",
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},
"license": null,
"status": null,
"url": null
}
|
This work addresses an urgent problem which is saving alloying elements (Ni, Mo, Nb, V, W and others) -which very scarce in Ukraine and other countries- while increasing the physical, mechanical and operational properties of the new designed and developed wear-resistant cast irons. Optical microscopy, x-ray structure analysis, transmission and scanning (fracture) electron microscopy methods, different-thermal, magnetometric and x-ray analyses, as well as hardness and micro-hardness tests, impact energy, and abrasive wear tests in environments of cast-iron shots were employed in the research. The work summarizes the controlling conditions for forming various metastable phases by including deformation (or strain) induced phase transformation (DIPT) and through realization in the process of testing. New wear-resistant economical alloyed cast irons with a metastable austenite-carbide and austenite-martensite-carbide structure are developed, which are being strain- hardened under impact-abrasive wearing operation conditions due to the realization of process DIPT in the superficial layer. These new cast irons are intended for manufacturing parts of different equipment (protective plates of sinter machines, furnaces, tracks for transferring raw materials at iron and steel works, etc.). These cast irons do not contain expensive and deficit alloying components, like nickel, molybdenum, vanadium, and more expensive similar materials. Simultaneously they possess enhanced impact-abrasive wear resistance.
|
2022-12-10T08:50:37.378Z
|
36,312,253 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.20944/PREPRINTS201609.0056.V1",
"MAG": "2521233239",
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"status": null,
"url": null
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|
Green manure could improve soil nutrients and crop production, playing a significant role in sustainable agriculture. However, the impacts of green manure on crop health and the roles soil microbial communities play in the process haven't been clarified clearly yet. In this study, we investigated soil microbial community composition and structure in four tobacco farmlands, which were treated with different green manure (control, ryegrass, pea and rape), using 16S rRNA gene amplicons sequencing. Results showed that green manure had significant impacts on soil properties, microbial communities and tobacco health. First, soil total C, N and Ca content increased significantly in groups treated with green manure than control. Second, soil community diversity was significantly higher in groups treated with green manure. Third, green manure especially ryegrass, decreased tobacco disease (bacterial wilt) rate dramatically, and the process might be mediated by soil microbial communities. On the one hand, several microbial populations were found to be potentially disease inducible or suppressive. For example, the abundances of Dokdonella and Rhodanobacter were positively correlated to tobacco disease rate, while Acidobacteira_Gp4 and Gp6 had negative correlations with tobacco disease. On the other hand, soil microbial communities were shaped by soil properties (e.g., pH, C and N content). In conclusion, our research showed that green manure could increase soil nutrients directly, and further improve tobacco health mediated by soil microorganisms, which may shed light on revealing interactions among soil properties, microorganisms and plants.
|
2022-12-20T01:19:39.520Z
|
46,924,588 |
{
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"ArXiv": null,
"DOI": "10.3233/978-1-61499-872-3-58",
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"url": null
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|
This presentation will be in a workshop format with a panel of presenters representing four countries. All speakers are authors and will address various aspects from the content of the book published as a result of the NI 2016 Post Conference in Switzerland, Forecasting Informatics Competencies for Nurses in the Future of Connected Health [1], before inviting the audience to discuss and share their views. The discussion will be focused on defining the informatics competencies for nurses in practice and the requirements for informatics training in nursing programs around the world.
|
2022-12-29T15:16:29.264Z
|
239,715,389 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.22034/HYD.2021.45107.1582",
"MAG": "3197482077",
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"license": null,
"status": null,
"url": null
}
|
وجود چشمههای آب ساحلی به دلیل تاثیر بر روی شوری و دمای آب و به تبع آن تاثیر بر روی چگالی محیط اطراف در مطالعات دریایی از اهمیت بالایی برخوردار است. هدف از پژوهش حاضر، مدلسازی عوامل موثر بر ناهنجاری دمای آبهای ساحلی و تعیین نواحی احتمالی خروج سفرههای آب زیرزمینی به داخل دریا میباشد. در این تحقیق به منظور تعیین ناهنجاری دمایی ناشی از نواحی احتمالی تخلیهی آب زیرزمینی به خلیج فارس در سواحل استان هرمزگان، ابتدا با اعمال تصحیحات لازم (اتمسفریک، رادیومتریک، هندسی) بر دادههای حرارتی باند 10 لندست 8، نقشهی دمای سطح دریا (SST) تهیه و نقشهی ناهنجاری دمایی استاندارد (STA) استخراج شد. سپس با تعیین سطح مشترک ناهنجاری دمایی طی سالهای 96 و 97، نواحی احتمالی تخلیه آب زیرزمینی زیردریایی به خلیج فارس مشخص شد. سپس شاخصهای ژئومرفومتری شامل: ارتفاع، شیب، انحنای طولی، انحنای عرضی، انحنای عمومی و موقعیت توپوگرافی (TPI) تعیین شده و ارزیابی شد. نتایج نشان داد که ناهنجاریهای ایجاد شده در سواحل بندرمقام، بندرنخیلو، بندردیوان، بندرشناس، بندرلنگه و بندرکنگ به ترتیب 53/43، 7/83، 18/65، 5/16، 2/46، 12/98 هکتار دارای احتمال بسیار بالای خروج سفرههای آب زیرزمینی به داخل دریا میباشند. این سطح در کل سواحل محدوده مورد مطالعه 100/53هکتار است که به خلیج فارس تخلیه میشود. همچنین بر اساس نتایج آزمون جکنایف حساسترین شاخص ژئومرفومتری، متغیر ارتفاع (درحالت منفی برابر با عمق دریا) است که به تنهایی AUC برابر با 90% ایجاد میکند لذا اگر از دادههای ورودی مدل حذف شود، بیشترین تاثیر کاهشی را در نتایج پیش بینی مدل خواهد داشت.
|
2022-01-27T10:03:46.901Z
|
139,625,774 |
{
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"DOI": "10.17863/CAM.16630",
"MAG": "2769782497",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The magnetotransport properties of three new superconducting compounds
(Y l-xCaxBa2Cu307-8, ThBa2Cu06+8 and RNhB2C) have been investigated. The study
has principally involved measurements of the anisotropic resistivity, magnetoresistance,
and Hall effect of these compounds, using a new 15 Tesla superconducting magnet
system.
Results of measurements of the resistivity, Hall effect and magnetoresistance of
sintered and thin film samples of Y l-xCaxBa2Cu307-8 are presented. The Hall coefficient
of the fully oxygenated overdoped material is smaller in magnitude and has a weaker
temperature dependence than that of optimally doped material, while the resistivity has an
upward curvature and can be well fitted by A + BT + CT2. Despite these large changes in
P and RH, cot(SH) shows remarkably little variation with doping, as is the case for
underdoped YBa2Cu307-8. In addition, it is shown that overdoping Y l-xCaxBa2Cu307-8
causes the mixed-state resistivity to shift rather than broaden in applied magnetic fields.
Measurements of the c-axis magnetoresistance of single crystals of
T12Ba2Cu06+8 (TI-2201) reveal a striking four-fold angular dependence as the magnetic
field is rotated in the ab-plane. A metallic c-axis resistivity (dpc/dT > 0) indicates that the
out-of-plane transport may be coherent, and based on this assumption a simple model for
this system is developed, using Boltzmann transport theory with an anisotropic relaxation
time 'to CalCulations based on this model are used to extract the anisotropy in the in-plane
mean free path from the experimental results. It is shown the measured changes in the
anisotropy in 't cannot fully account for the temperature dependence of the in-plane Hall
coefficient. Furthermore, despite a metallic c-axis resistivity, the c-axis mean free path is
estimated to be less than the c-axis lattice parameter for all but the lowest temperatures.
Finally, the new class of rare earth intermetallic borocarbides RNi2B2C has been
investigated. The results of resistivity, susceptibility, thermoelectric power, Hall effect
and magnetoresistance measurements are presented for nonsuperconducting and
superconducting, magnetic and nonmagnetic members of this family (R = Y, La, Ho, Er,
Lu). These results clarify the nature of the electronic transport in these compounds, and
reveal some important connections between the normal-state properties and the
superconductivity. In particular, measurements of single-crystals show for the first time
that Pc = Pa. Furthermore, a negative longitudinal magnetoresistance in HoNhB2C above
TN, which scales as HIT, demonstrates unambiguously the presence of spin-disorder
scattering in this compound.
|
2022-02-09T09:30:36.834Z
|
236,547,238 |
{
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"DOI": "10.1002/ygh2.496",
"MAG": "3160557662",
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},
"license": null,
"status": null,
"url": null
}
|
Helicobacter pylori (H pylori) assessment in patients who stop taking proton pump inhibitor (PPI) in less than 2 weeks has never been established. Experts have suggested using pathology rather than rapid urease test (RUT). Unfortunately, pathology is not widely available in limited resource areas. We aimed to evaluate the detection rate of RUT at antrum and body compared with pathology in those patients.
|
2022-07-19T11:02:18.233Z
|
251,602,555 |
{
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"ArXiv": null,
"DOI": "10.21776/ub.jcerdik.2021.001.01.06",
"MAG": null,
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},
"license": "CCBY",
"status": "HYBRID",
"url": "https://jurnalcerdik.ub.ac.id/index.php/jurnalcerdik/article/download/45/7"
}
|
The purpose of this classroom action research is to improve the students’ speaking skill by using Pantomime, it is also to share toward the teachers the new media of teaching and learning in the classroom. This action research is the research that has been done in two cycles. Cycle one consists of three meeting while cycle two consists of two meeting. It is done in the tenth grade of State Senior High School 4 Malang. There are thirty three students in it. The result of this classroom action research shows that the using of Pantomime can improve the students' speaking skill.
|
2022-08-19T19:01:08.459Z
|
154,127,803 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2139/ssrn.871461",
"MAG": "1872614229",
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "https://helda.helsinki.fi/bitstream/10138/16660/1/roleofge.pdf"
}
|
This paper reviews a broad range of micro-, macroeconomic and development economics literature on the impact of gender equality on economic development and growth. Stylized facts are reported as well as the results of both empirical and theoretical research. Globally, women's roles are found to be in the midst of change. These changes may stem from technological improvement, as industrialization has made extensive home-based production obsolete and reduced the demand for children. Instead of the gendered specialization in autarkic households, contemporary specialization in the market place may have led to lower fertility and consequent shifts in women's economic roles. As historic hierarchical gender valuations appear in many different guises, adjustment to these changes pose challenges on many different levels. Overall the literature suggests that issues in gender inequality as it relates economic development fall into the categories of: values and religion, cultural restrictions and roles, legal and inheritance laws and practices, resource allocation within marriage, labor market access, education, fertility, gender specific market failures in finance, and power in decision making.
|
2022-11-18T07:19:51.266Z
|
3,859,533 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1021/acssynbio.6b00245",
"MAG": "2923231789",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Incorporation of unnatural amino acids (uAAs) via codon reassignment is a powerful approach for introducing novel chemical and biological properties to synthesized polypeptides. However, the site-selective incorporation of multiple uAAs into polypeptides is hampered by the limited number of reassignable nonsense codons. This challenge is addressed in the current work by developing Escherichia coli in vitro translation system depleted of specific endogenous tRNAs. The translational activity in this system is dependent on the addition of synthetic tRNAs for the chosen sense codon. This allows site-selective uAA incorporation via addition of tRNAs pre- or cotranslationally charged with uAA. We demonstrate the utility of this system by incorporating the BODIPY fluorophore into the unique AGG codon of the calmodulin(CaM) open reading frame using in vitro precharged BODIPY-tRNACysCCU. The deacylated tRNACysCCU is a poor substrate for Cysteinyl-tRNA synthetase, which ensures low background incorporation of Cys into the chosen codon. Simultaneously, p-azidophenylalanine mediated amber-codon suppression and its post-translational conjugation to tetramethylrhodamine dibenzocyclooctyne (TAMRA-DIBO) were performed on the same polypeptide. This simple and robust approach takes advantage of the compatibility of BODIPY fluorophore with the translational machinery and thus requires only one post-translational derivatization step to introduce two fluorescent labels. Using this approach, we obtained CaM nearly homogeneously labeled with two FRET-forming fluorophores. Single molecule FRET analysis revealed dramatic changes in the conformation of the CaM probe upon its exposure to Ca2+ or a chelating agent. The presented approach is applicable to other sense codons and can be directly transferred to eukaryotic cell-free systems.
|
2022-12-10T16:34:13.586Z
|
3,019,156 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1471-4159.1987.tb01029.x",
"MAG": "2089640239",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract: Exposure to high hydrostatic pressure produces neurological changes referred to as the high‐pressure nervous syndrome (HPNS). Manifestations of HPNS include tremor, EEG changes, and convulsions. These symptoms suggest an alteration in synaptic transmission, particularly with inhibitory neural pathways. Because spinal cord transmission has been implicated in HPNS, this study investigated inhibitory neurotransmitter function in the cord at high pressure. Guinea pig spinal cord synaptosome preparations were used to study the effect of compression to 67.7 atmospheres absolute on [3H]glycine and [3H]γ‐aminobutyric acid ([3H]GABA) release. Pressure was found to exert a significant suppressive effect on the depolarization‐induced calcium‐dependent release of glycine and GABA by these spinal cord presynaptic nerve terminals. This study suggests that decreased tonic inhibitory regulation at the level of the spinal cord contributes to the hyperexciltability observed in animals with compression to high pressure.
|
2022-12-03T14:41:57.343Z
|
143,305,157 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1468-2478.2009.00552.X",
"MAG": "1766806247",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study re-examines the empirical support for one of the most influential explanations of leadership tenure, “selectorate theory,” by testing for consistency across key regime categories. The argument made herein is that if the measures are good, the consistency of their relationships should not be limited to particular nominal regime categories, and they should capture the implications of the theory differentiating it from competing theories. Current measures of selectorate theory concepts are wanting on both fronts. I find that the measure used for winning coalition size is correlated with the destabilization of leaders in democracies and the stabilization of leaders in nondemocracies. I also find that the measure of selectorate size exhibits two behaviors inconsistent with the theory: larger selectorates are only stabilizing after the leader has already been in office for an extended period of time; and the effect is only substantial for differentiating between types of military regimes. These findings have five implications: (1) they cast serious doubt on the utility of current measures of selectorate theory; (2) they raise conceptual questions about the treatment of political regimes as vectors or categories; (3) they define substantive, not just statistical, issues that future measures will need to address; (4) they give baselines for re-analysis of the effect of these measures on other implications of interest; and (5) they provide an interesting comment on the comparative politics literature on hybrid regimes and the effect of parliamentary institutions in nondemocratic regimes.
|
2022-12-14T18:44:27.217Z
|
21,975,345 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1740-8261.1998.TB01614.X",
"MAG": "2062919636",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A 7-month-old La Mancha doe was presented with a right head tilt and ventral strabismus while circling to the left. History and physical examination led to a tentative diagnosis of a cerebral abscess. Computed tomography revealed a large, complex mass with ring enhancement in the left cerebral hemisphere, supporting the diagnosis. Postmortem examination confirmed the cerebral abscess. Bacterial cultures yielded heavy growth of Actinomyces pyogenes.
|
2022-12-20T04:40:34.670Z
|
213,364,585 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1094/php-11-19-0081-rs",
"MAG": "3000866092",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Nonionizing, ultraviolet (UV) radiation is effective for mitigating powdery mildew associated with a variety of crops including strawberry, grapes, rosemary, tomato, rose, and cucumber. The effectiveness of UV radiation depends upon the dose (irradiance × duration), the frequency of dosing, the time of application, and the sensitivity of the crop to UV radiation. Reported here are the results of two laboratory studies examining the impact of UV-C (254 nm) on cucumber and its obligate powdery-mildew-causing pathogen Podosphaera xanthii. In the first study, doses of UV-C (72 and 144 J m–²) applied every night were more effective at reducing disease severity than dosing every day. However, leaf area was reduced more following nighttime applications than daytime applications, suggesting that both day and night applications of UV-C could compromise yield without necessarily eliminating the disease. The second study showed that a dose of UV-C (7.2 J m–²) applied every night or a higher dose (70 J m–²) applied every fourth night were both effective for eliminating powdery mildew without significantly reducing leaf area. These findings, if confirmed in the field, could provide cucumber growers with additional options for controlling powdery mildew without compromising yield.
|
2022-12-20T17:35:56.059Z
|
38,870,799 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1365-294X.2005.02590.x",
"MAG": "2107526399",
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},
"license": null,
"status": null,
"url": null
}
|
Climatic oscillations during the Pleistocene epoch had a dramatic impact on the distribution of biota in the northern hemisphere. In order to trace glacial refugia and postglacial colonization routes on a global scale, we studied mitochondrial DNA sequence variation in a freshwater fish (burbot, Lota lota; Teleostei, Gadidae) with a circumpolar distribution. The subdivision of burbot in the subspecies Lota lota lota (Eurasia and Alaska) and Lota lota maculosa (North America, south of the Great Slave Lake) was reflected in two distinct mitochondrial lineages (average genetic distance is 2.08%). The lota form was characterized by 30 closely related haplotypes and a large part of its range (from Central Europe to Beringia) was characterized by two widespread ancestral haplotypes, implying that transcontinental exchange/migration was possible for cold‐adapted freshwater taxa in recent evolutionary time. However, the derived mitochondrial variants observed in peripheral populations point to a recent separation from the core group and postglacial recolonization from distinct refugia. Beringia served as refuge from where L. l. lota dispersed southward into North America after the last glacial maximum. Genetic variation in the maculosa form consisted of three mitochondrial clades, which were linked to at least three southern refugia in North America. Two mitochondrial clades east of the Continental Divide (Mississippian and Missourian clades) had a distinct geographical distribution in the southern refuge zones but intergraded in the previously glaciated area. The third clade (Pacific) was exclusively found west of the Continental Divide.
|
2022-12-31T15:46:26.950Z
|
91,569,131 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.4165/KAPPS.60.61",
"MAG": "2889424509",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Mosaic diseases and wilt are caused by viral infections, and cause loss of cucumber yield. It is a serious problem for cucumber cultivation in Japan. In Osaka prefecture, the main virus type detected in cucumber plants with the disease symptoms was Zucchini yellow mosaic virus (ZYMV). Greenhouse shade treatment reduced the temperature differences between sunny and cloudy or rainy days and occurrence of wilt symptoms caused upon ZYMV inoculation. The result supported the hypothesis that wilting caused by viral infection was probably induced by drastic changes in temperature from cloudy or rainy days to clear sunny days. The combined use of CUBIO ZY-02 (ZYMV vaccine) and greenhouse shading prevented the reduction in cucumber yield, due to ZYMV infection, from the nursery stage.
|
2022-02-10T18:15:35.128Z
|
55,249,382 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5958/2277-937X.2017.00002.8",
"MAG": "2599287503",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The aim of this paper was to study the diversity of Chrysomelidae beetle in Garbhanga Reserve Forest. Five plots with vegetation structure covering different habitats were selected for diversity study. The study was conducted from April to October in 2011 and 2012. A total of 1713 individuals belonging to 21 species were recorded from the chosen plots. Species richness estimators were used to measure the diversity of Chrysomelidae beetle. Diversity index study indicated that vegetation cover with moist deciduous type was rich in diversity in comparison to other vegetation type.
|
2022-02-11T20:09:09.684Z
|
218,499,064 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/15567036.2016.1235904",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://www.tandfonline.com/doi/pdf/10.1080/15567036.2016.1235904?needAccess=true"
}
|
In volume 38, issue 15 of Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, an incorrect author affiliation appeared in Isolation of fermentative microbial isolates from sugar cane and beet molasses and evaluation for enhanced production of bioethanol by H. I. Hamouda, et al., pages 2170-2180. The correct affiliation is shown below. The publisher apologizes for any inconvenience caused.
|
2022-04-08T00:59:56.947Z
|
26,277,669 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1300/J162v01n02_06",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper is intended to show how the unique feature of the Variable Instruction Computer (VIC) make it valuable for application requiring high reliability. By careful choice of components, use of error checking circuits, and selected application of redundant hardware, the basic unextended reliability of the VIC is comparable with the state-of-the art. This is verified by a standard MIL-HDBK-217 type of analysis.
The variable instruction technique is briefly described by use of a block diagram. The method for extending reliability by use of variable instruction is explained and an example is given. The concept of algorithm change to achieve controlled gradeful degradation is discussed. An analysis of a typical application of this technique is given and extensions of the variable instruction concept to more advanced reliability requirements are discussed.
|
2022-06-30T18:26:00.126Z
|
18,066,820 |
{
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"ArXiv": null,
"DOI": "10.1109/ICRA.2016.7487563",
"MAG": "2417835333",
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},
"license": null,
"status": null,
"url": null
}
|
This paper presents the novel mobile robotic gait rehabilitation system MOPASS and the first results from its usability testing in the clinics. Consisting of an adjustable mobile platform and a modular powered orthosis attached to the platform, the MOPASS system is able to cope with individual needs of patients during the overground walking training. The control system of MOPASS allows generation of individual gait patterns. The adjustment of the gait patterns to the patient is done over a graphical user interface by simple manipulation of the gait pattern curves displayed on the screen. The first results on the system application were obtained in two clinics with 20 patients in total. The results show a high degree of acceptance by both, therapists and patients, and indicate good prospects for the MOPASS system.
|
2022-12-13T02:50:23.848Z
|
95,758,495 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.2109/JCERSJ2.118.91",
"MAG": "2005639873",
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},
"license": null,
"status": null,
"url": null
}
|
We succeeded in synthesizing Ba2RBiO6 (R = La, Ce, Nd, Sm, Eu, Gd, and Dy) with a double-perovskite structure. Its photocatalytic activities were then investigated for a degradation of methylene blue (MB) solution and gaseous 2-propanol (IPA). High photocatalytic activities were observed under visible light irradiation and also a rare earth dependence of photocatalytic activities in the IPA degradation. We carried out first-principle calculations of the band structure based on the all-electron Full-potential Linear Augmented Plane-Wave (FLAPW) method and discuss the relationship between the high photocatalytic activities and the band structure in this paper.
|
2022-12-30T18:09:50.748Z
|
244,667,309 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.30872/psikostudia.v10i3.5621",
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},
"license": "CCBYSA",
"status": "HYBRID",
"url": "http://e-journals.unmul.ac.id/index.php/PSIKO/article/download/5621/pdf_1"
}
|
Burnout adalah stres berkepanjangan yang muncul karena beban pekerjaan yang berlebih. Salah satu profesi di bidang pendidikan yang mengalami burnout adalah guru di SMPN Y Surabaya. Salah satu upaya menurunkan tingkat burnout yakni melalui Pelatihan ‘ASIMERU’. Pelatihan ini berbasis penerapan Modal Psikologis yakni mengimplementasikan HERO (Hope, Self-efficacy, Resiliency & Optimism). Penelitian ini menggunakan pendekatan kuantitatif dengan metode eksperimen pretest-posttest design. Penelitian ini menggunakan teknik purposive sampling dengan jumlah 10 paritisipan. Tingkat burnout diukur dengan skala burnout oleh Maslach, Jackson, Leiter (1996) yang diberikan sebelum dan sesudah pelatihan yang kemudian dianalisis menggunakan paired sample t-test. Hasil penelitian menunjukkan bahwa Pelatihan ‘ASIMERU’ efektif untuk menurunkan tingkat burnout para guru di SMPN Y Surabaya. Burnout is a prolonged stress arising due to an excessive workload. Teachers at Public Junior High School Y Surabaya has experienced burnout. ‘ASIMERU’ training, which is based on Psychological Capital (Hope, Self-efficacy, Resiliency & Optimism) was designed to reduce burnout rate. This study used a quantitative approach with an experimental method with a pretest-posttest design type. This study utilized a purposive sampling technique which then obtained 10 participants. The study used the burnout scale by Maslach, Jackson, Leiter (1996) given before and after training which then analyzed by using paired sample t-test. The results showed that the "ASIMERU" training was effective in reducing the burnout rate of the teachers at Public Junior High School Y Surabaya.
|
2022-01-27T01:59:03.178Z
|
149,557,539 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1080/08905762.2018.1540750",
"MAG": "2909665754",
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},
"license": null,
"status": null,
"url": null
}
|
Claribel Alegría (b. 1924, Estelí, Nicaragua; d. 2018, Managua, Nicaragua) was one of Central America’s most important voices in the twentieth and twenty-first centuries. After living abroad for many years, she returned to Nicaragua in 1979, after the fall of Somoza, when the Sandinistas came to power. During the 1950s and ’60s, Alegría belonged to what was known as “the committed generation,” and throughout her career she published in various genres—poetry, fiction, essays, and children’s literature—many in collaboration with her husband, Darwin Flakoll. Her publications in translation include Flowers from the Volcano (1982; trans. Carolyn Forché), Luisa in Realityland (1987), Woman of the River (1989), Family Album (1990), Ashes of Izalco (1995), and Halting Steps: Collected Poems (2013). She was awarded the Casa de las Américas prize for Sobrevivo (I Survive) in 1978 and the Premio Reina Sofía de Poesía in 2017. The following memorial text by her compatriot Sergio Ramírez appeared in Carátula 82 (February 2018).
|
2022-02-09T04:17:50.496Z
|
143,668,303 |
{
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"ArXiv": null,
"DOI": "10.5408/1.3544245",
"MAG": "1973869408",
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},
"license": null,
"status": "CLOSED",
"url": null
}
|
Five high schools in British Columbia, Canada, participated in an atmospheric sciences project during the winter of 2006-07 established by researchers at the University of Calgary. Precipitation gauges and temperature and relative humidity probes were installed at each school and students were asked to collect a water sample each day that precipitation accumulated. These samples were used to trace the evolution of stable water isotopes across southwestern Canada. Researchers visited schools to talk about water resources and climate change, and data were collated and given to teachers to use in an atmospheric science project. The participatory nature of this project gave students exposure to data collection and basic analytical techniques used in atmospheric sciences. This was a first attempt at collaboration between our research group and secondary schools, and we point out a number of issues that arose in our study with respect to a successful two-way engagement between researchers and students. These include school engagement, the geographic distribution of the participating schools, the time span of the project, and the time available to schools. There are also a number of data quality considerations, but we were successful overall in acquiring a unique, high-quality dataset that satisfies our research objectives.
|
2022-03-07T22:59:06.974Z
|
128,489,496 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1346/CCMN.1969.0170103",
"MAG": "2037145172",
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},
"license": null,
"status": null,
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}
|
AbstractPreviously reported deposits of kaolin of hydrothermal origin in Mexico have been described from igneous parent rocks dominantly extrusive in occurrence. Recently observed evidence from other localities confirms an intrusive mode of occurrence, however, for hydrothermally kaolinized agglomerate and tuff within limestone host rock. Three such occurrences have been recognized near Jasso-Calera, north of Mexico City, and near Coacoyula, Guerrero, and Sombrerete, Zacatecas.The contacts of these clay deposits with limestone show regularly a concentration of iron-rich minerals such as red to brown oxides and/or nontronite, but less commonly an irregular development of grossularite, and bands or pockets of endellite. Silica gossans indicate that hypogene altering solutions were active into the current geomorphic cycle. Kaolinite at the center of the clay body and endellite at the border zones are interpreted as originating, respectively, from in situ alteration of solid rock and deposition from ambient solutions.RésuméDe gisements déjà découverts de kaolin d’origine hydrothermique au Mexique ont été décrits; ils proviennent d’une roche de départ ignée et surtout extrusive. Pourtant sur la base des observations récentes dans d’autres endroits, on a l’impression d’une origine intrusive de l’aggloméré kaolinisé de manière hydrothermique et du tuf dans une roche de départ calcaire. On a reconnu trois formations de ce genre près de Jasso-Calera au nord de Mexico City, et dans la région de Coacoyula, Guerrero, et Sombrerete, Zacatecas.Les contacts entre ces gisements d’argile et la roche calcaire montrent régulièrement une concentration de minéraux à forte teneur de fer, p.e. les oxides rouges ou bruns et/ou le nontronite, mais de manière moins commune un développement irrégulier de grossularite, et des bandes ou poches d’endellite. Les gossans de silice montrent que des solutions modifiant l’hypogène étaient actives dans le cycle géomorphique actuel. Le kaolinite au centre de l’accumulation d’argile et l’endellite aux zones marginales sont censés avoir leur origine respectivement dans l’altération in situ de la roche solide et dans la déposition à partir des solutions environnantes.KurzreferatKaolinablagerungen hydrothermischen Ursprungs in Mexiko, über die bereits früher berichtet wurde, sind als Massengestein von vorherrschend extrusivem Zustandekommen beschrieben worden. Vor kurzem beobachtetes Material von anderen Orten bestätigt jedoch die intrusive Ablagerung von hydrothermisch kaolinisiertem Agglomerat und vulkanischem Tuff innerhalb eines Kalkmuttergesteines. Drei solche Vorkommen sind in der Nähe von Jasso-Calera im Norden von Mexico-City und in der Nähe von Coacoyula, Guerrero sowie Sombrerete, Zacatecas festgestellt worden.Die Berührungsstellen dieser Tonablagerungen mit Kalk weisen regelmässig eine Konzentration eisenreicher Minerale wie roter bis brauner Oxyde und/oder von Nontronit, jedoch weniger häufig eine unregelmässige Entwicklung von Grossularit, und Bänder oder Nester von Endellit auf. Silikahaltiger eisenschüssiger Letten deutet darauf hin, dass hypogene Verwandlungslösungen in den gegenwärtigen geomorphischen Zyklus hinein wirksam waren. Das Vorkommen von Kaolinit im Inneren des Tongesteines von Endellit in den Grenzzonen wird auf Veränderung des Festgesteins an Ort und Stelle bzw. auf Ablagerungen aus umlaufenden Lösungen zurückgeführt.РезюмеОбразование известных гидротермальных месторождений каолина в Мексике связывается с изменением изверженных пород, преимущественно экструзивных. Приводятся новые данные о гидротермально каолинизированных агломератах и туфах, залегающих в известняках в Хассо-Калера (севернее города Мехико), а также в окрестностях Коакоюла (штат Герреро) и Сомбререте (Закатекас).
Для контактов глин с известняком характерна концентрация обогащенных железом минералов—красных до бурых окислов железа и/или нонтронита, реже гроссуляра; наблюдаются также выделения галлуазита. Каолинит в центральной части залежи и галлуазит в ее краевых частях рассматриваются как образовавшиеся соответственно in situ (путем замещения) и путем отложения из растворов.
|
2022-08-28T02:53:11.047Z
|
525,346 |
{
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"DOI": "10.1103/PHYSREVD.47.R3690",
"MAG": "1991986162",
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|
We calculate the next-to-leading-order corrections to the perturbative QCD calculation of the decay [ital J]/[psi][r arrow][pi][sup +][pi][sup [minus]] that cannot be factorized into either initial or final state wave functions. When using either the asymptotic or Chernyak-Zhitnitsky distribution amplitudes for the pion we find that these corrections are small ([similar to]5%). Since the leading process is proportional to [ital F][sub [pi]][sup 2]([ital M][sub [ital J]][sup 2]), we suggest that the pion form factor at a large timelike [ital Q][sup 2] can be extracted from the measured decay rate of charmonium. Normalizing to the corresponding leptonic decay channels, we thus obtain that [ital M][sub [ital J]][sup 2][ital F][sub [pi]]([ital M][sub [ital J]][sup 2])[approx]0.9, approximately a factor of 2 larger than what might have been commonly expected.
|
2022-09-19T14:39:55.986Z
|
29,729,206 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1365-2125.1975.TB01569.X",
"MAG": "2088997855",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
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|
1 Twelve normal subjects were tested on a large battery of tests after a hypnotic dose of flunitrazepam(1 or 2 mg) and a placebo. Psychological tests were given 12 h after the drug and physiological tests 12, 15 and 18 h after the drug. 2 The tests included self-ratings of hypnotic effects and mood, the electroencephalogram, the auditory electroencephalographic evoked response, skin conductance, tapping, card-sorting and the symbol copying test. 3 Both doses of flunitrazepam were effective hypnotics according to the ratings, with an anxiolytic effect the following day. The EEG was significantly altered up to 18 h after the drug and the behavioural tests showed a motor impairment 12 h after drug administration. 4 Nearly all changes displayed linear dose-related trends.
|
2022-12-10T06:48:50.940Z
|
137,982,930 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1051/NAMES2007010",
"MAG": "2325474533",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Formability of the titanium sheets essentially depends on a normal anisotropy parameter (R) of the investigated material. The magnitude of the R-parameter was defined from orientation distribution function (ODF) data in the context of the suggested plastic deformation model. In the present paper we study influence of texture on the normal plastic anisotropy parameter R for example of Ti sheet samples.
|
2022-12-10T11:16:55.901Z
|
11,300,265 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1371/journal.pone.0010172",
"MAG": "1973763399",
"PubMedCentral": "2854717"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0010172&type=printable"
}
|
Background Previous work by our lab and others has implicated glutamate as a major excitatory signal to gonadotropin hormone releasing hormone (GnRH) neurons, with gamma amino butyric acid (GABA) serving as a potential major inhibitory signal. However, it is unknown whether GABAergic and/or glutamatergic synaptic appositions to GnRH neurons changes on the day of the proestrous LH surge or is affected by aging. Methodology/Principal Findings To examine this question, synaptic terminal appositions on GnRH neurons for VGAT (vesicular GABA transporter) and VGLUT2 (vesicular glutamate transporter-2), markers of GABAergic and glutamatergic synaptic terminals, respectively, was examined by immunohistochemistry and confocal microscopic analysis in young and middle-aged diestrous and proestrous rats. The results show that in young proestrous rats at the time of LH surge, we observed reciprocal changes in the VGAT and VGLUT2 positive terminals apposing GnRH neurons, where VGAT terminal appositions were decreased and VGLUT2 terminal appositions were significantly increased, as compared to young diestrus control animals. Interestingly, in middle-aged cycling animals this divergent modulation of VGAT and VGLUT2 terminal apposition was greatly impaired, as no significant differences were observed between VGAT and VGLUT2 terminals apposing GnRH neurons at proestrous. However, the density of VGAT and VGLUT2 terminals apposing GnRH neurons were both significantly increased in the middle-aged animals. Conclusions/Significance In conclusion, there is an increase in glutamatergic and decrease in GABAergic synaptic terminal appositions on GnRH neurons on proestrus in young animals, which may serve to facilitate activation of GnRH neurons. In contrast, middle-aged diestrous and proestrous animals show a significant increase in both VGAT and VGLUT synaptic terminal appositions on GnRH neurons as compared to young animals, and the cycle-related change in these appositions between diestrus and proestrus that is observed in young animals is lost.
|
2022-12-16T12:56:52.021Z
|
101,936,495 |
{
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"ACL": null,
"ArXiv": null,
"DOI": "10.1021/IE502864U",
"MAG": "2325077895",
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"license": null,
"status": null,
"url": null
}
|
It remains a great challenge for the simple and affordable production of membranes for oil/water separation. We prepare low-cost but highly efficient paper-based membranes for oil/water separation through hydrophobic modification to filter papers. The simple modification contains only two steps: a thin layer of aluminum oxide is first coated on the surface of the filter paper by atomic layer deposition, and silane molecules are subsequently coupled on the precoated aluminum oxide layer via their reaction with hydroxyl groups on the surface. Both the alumina layer and the silanization layer are very thin with a total thickness less than 10 nm. The modified filter paper is endowed with strong hydrophobicity and oleophilicity, therefore exhibits strongly retarded permeation to water and enhanced permeation to nonpolar oils. The modified filter paper is demonstrated to show excellent separation efficiencies greater than 90% in the separation of various types of oils and organic solvents from their mixtures wi...
|
2022-12-19T11:05:29.715Z
|
153,434,755 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4396/209",
"MAG": "1562554949",
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},
"license": null,
"status": null,
"url": null
}
|
There is a close link between money and language, but there are two acceptations of money. The first is a social object, the second is a concept. In the absence of this distinction, John Searle’s theory on social object is weak. It’s necessary to go back to Kant and Hegel to search for the key of this dissimilarity. Space and time can be the parameters that allow to distinguish the social object “money” from the concept “money”, and it’s essential to separate the historic origin from logic origin of money. The social object “money” owns two characteristics: a specific sign and the social intentionality. Furthermore, concepts such as money, currency, debt, financial products, and derivatives seem to belong to the same field, whereas on the contrary the economic crises that succeed one another are prompting us to reflect on the kind of anthropology and cultural horizon within which such concepts have emerged and solidified. Whereas economy is a set of social relations that unfolds in the three fields of production, circulation, and distribution of goods, the definition of finance and the nature and typology of financial products are less clear.
|
2022-02-09T02:21:18.410Z
|
73,600,515 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.14499/INDONESIANJPHARM0ISS0PP84-92",
"MAG": "1918330940",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The study was designed to study the Biological importance and nutritional benefits of Perilla frutescence plant. This plant has very high biological activities. It contains various phytoconstituents such as different phenolic compounds (like rosemarinic acids, luteolin chrysoeriol, quercetin, catcehin, apigenin, etc), vitamins, minerals etc. Perilla seeds contained 30-40% fixed oil, contained both saturated (palmitic acid 5-7%, stearic acid 1-3%), unsaturated (UFAs) or polyunsaturated (PUFAs) (oleic acid 12-22%, linoleic acid 13-20%, γ-linolenic acid 0-1%, α-linolenic acid 52-64%, icosanoic acid 0-1%) fatty acids. Perilla oil is highly unsaturated oil among the all current discovered natural vegetable oils. Whole perilla plant has many important functions on improving and accelerating human health and is effective in prevention of various diseases. Key words: Perilla frutescence, biological activities, phyto-constituents, polyphenols, polyunsatured fatty acids.
|
2022-06-01T12:45:26.865Z
|
93,064,432 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5935/0100-4042.20140125",
"MAG": "1518057088",
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://doi.org/10.5935/0100-4042.20140125"
}
|
This aim of this work was to compare two methods for copper determination in insulating oils from power transformers by GFAAS. The first method was extraction induced by emulsion breaking, which determined the preconcentration of copper in an aqueous solution and exhibited a limit of quantification of 0.27 µg L-1. Also, a second method based on the direct introduction of samples into GFAAS in the form of detergent emulsions, prepared with Triton X-114 and HNO3, was investigated. In this case, the limit of quantification was 1.7 µg L-1. Seven samples of used oils were successfully analyzed by both methods.
|
2022-05-20T06:49:55.121Z
|
155,070,651 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1108/EB057765",
"MAG": "2149703026",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Dans beaucoup de pays au tourisme developpe, la participation des stations thermales et climatiques au tourisme est importante depuis longtemps. Elle est due a l'experience historique, mais a notre epoque il s'est produit un tournant important des exigences de la societe envers la mission du thermalisme. Apres avoir ecarte les conflits theoriques et pratiques en relation avec les objectifs de la medecine clinique et de la pharmacotherapie, la position du thermalisme s'est consolidee. Nonobstant les recessions dues aux crises des economies nationales (haute inflation, chomage durable, etc.) dans plusieurs Etats a l'epoque recente, il faut constater qu'a l'echelon mondial un developpement incessant du thermalisme comme facteur important du tourisme est incontestable.
|
2022-07-31T04:00:21.544Z
|
145,096,702 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/09589230220139773",
"MAG": "2082982606",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Women's experiences of war are highly misrepresented in mainstream media. A 'news blackout' of women's war experiences, or ongoing distortions of these experiences, inadvertently hide many crucial issues that would otherwise improve the public's understanding of war. The variety and frequency of occurrence of gendered interpretations of war coverage are well worth investigating. This paper provides a comparative study of gendered reporting of the Kosovo conflict using a context analysis model and applying it to the media of twenty-one nations. Additionally, the study briefly traces the commercial, political and social factors within the media business that contribute to ongoing gendered coverage of women and war.
|
2022-11-05T14:37:52.149Z
|
146,063,395 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/ACS.JPCC.9B00750",
"MAG": "2935904797",
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},
"license": null,
"status": null,
"url": null
}
|
Nearly, all metals form spontaneously an oxygenated surface upon exposure to air. Here, we demonstrate that the reaction of such an oxygenated surface with hydrogen results in the clustering of met...
|
2022-12-14T06:16:13.320Z
|
121,972,296 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1365-246X.1992.TB00086.X",
"MAG": "2152066045",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
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|
SUMMARY The Earth’s orientation in space changes in response to the action of a variety of torques, generated both externally and internally. External torques arising from the gravitational forces of the Sun and Moon act upon the Earth, causing it to undergo periodic motions known as the lunisolar precession and nutations. Internal dynamical processes that change the deformable Earth’s inertia tensor, or that generate relative angular momentum, also cause the Earth’s orientation in space to change, the resulting motions being known as wobble (or polar motion) and changes to the length-of-day. Historically, it was thought that observations determined the location of the rotation pole within some rotating reference frame fixed to the solid Earth, and theoretical expressions for the nutations and wobble were developed and given in terms of the Earth’s rotation axis. However, it has been (relatively recently) argued that observatories, being located on the surface of the Earth, are more nearly moving with the Earth’s surface, and hence observations more nearly reflect the motion of the Earth’s figure axis, rather than its rotation or angular momentum axes. This argument was accepted by the International Astronomical Union, and the current 1980 Theory of Nutation refers to an axis, the celestial ephemeris pole, that is more closely associated with the Earth’s figure axis than it is with the Earth’s rotation axis. Polar motion values, as reported by modern Earth rotation services, give the location of the celestial ephemeris pole within some rotating, body-fixed reference frame. The celestial ephemeris pole does not correspond to either the Earth’s instantaneous figure axis, its instantaneous rotation axis, or its instantaneous angular momentum axis, but rather corresponds to an axis that exhibits no nearly diurnal motions in either the terrestrial, body-fixed reference frame or the celestial, space-fixed frame. The focus of this paper is not on the nutational motions of the Earth generated by external torques, but rather on the wobble. The goal of this paper is to write in terms of reported values the standard theoretical equation describing the Earth’s wobble, namely, the linearized conservation of angular momentum equation known as the Liouville equation. In terms of the location m(t) =rn,(t)+irn2(t) of the rotation pole, the Liouville equation is usually written as
|
2022-12-20T08:29:53.886Z
|
254,721,035 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.55779/nsb14411331",
"MAG": null,
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},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.notulaebiologicae.ro/index.php/nsb/article/download/11331/9522"
}
|
Cryptosporidium species cause high morbidity and sometimes high mortality rates among cattle, resulting in serious economic threats. This present study is aimed at investigating the presence, prevalence, distribution, and risk factors associated with Cryptosporidium species infection among cattle in Kwara State, Nigeria. To achieve this, 333 apparently healthy cattle were sampled from abattoirs and different cattle herds over a one-year period. Faecal samples were collected and subjected to the formalin-ethyl acetate (formol-ether) sedimentation technique. Sediments from the formol-ether sedimentation method were used for the modified Ziehl-Neelsen staining technique. The Microsoft Excel (2016) spreadsheet and the Statistical Package for the Social Sciences (SPSS, Chicago, Illinois, USA) for Windows version 22.0 were used for the data analysis. Of the cattle sampled, 99 were positive for the enteric protozoan (29.73%; 95% confidence interval (CI) = 25.07–34.85). There was no distinct pattern in the monthly prevalence of Cryptosporidium infection in cattle. Breeds of cattle, physiological status, and seasons were statistically associated with the prevalence of Cryptosporidium species in cattle. There is a need to educate pastoralists on the control and preventive measures of this enteric protozoan to improve the economy of the cattle industry and prevent possible transmission to humans in Kwara State and Nigeria in general.
|
2022-12-18T14:13:47.551Z
|
96,453,119 |
{
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"ArXiv": null,
"DOI": "10.4028/www.scientific.net/KEM.396-398.561",
"MAG": "2072431716",
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},
"license": null,
"status": null,
"url": null
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|
Polymeric sponges coated with hydroxyapatite were used in lead and cadmium uptake experiments in order to mimetizes heavy metal incorporation by bone tissue. The hydroxyapatite-coated sponges (S-HA) were obtained by hydrothermal alkali conversion from monetite. The results showed that S-HA were efficient in immobilizing Pb and Cd. The uptake experiments using hydroxyapatite powder (HA) removed almost 100% of Pb2+ and 59% of Cd2+. When polymeric sponges coated with hydroxyapatite were used, the removal of Cd2+ and Pb2+ decreased, respectively, to closely 14 % and 74%, after 24 hours sorption. Before and after sorption experiment MEV analysis indicated precipitation of pyromorphite on hydroxyapatite-coated sponges.
|
2022-12-20T04:10:20.897Z
|
3,801,095 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5664/jcsm.6840",
"MAG": "2773966678",
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "https://europepmc.org/articles/pmc5695989?pdf=render"
}
|
STUDY OBJECTIVES
REM sleep behavior disorder (RBD) is a parasomnia that is commonly associated with neurodegenerative disorders. We aimed to validate the Hong Kong version of the self-reported RBD questionnaire (RBDQ-HK) with the Korean version (RBDQ-KR) and to investigate its clinical usefulness.
METHODS
One-hundred five patients with RBD and 105 age- and sex-matched controls were enrolled. Thirty were randomly selected for a retest with the questionnaire after 2 to 4 weeks without any treatment. Receiver operating characteristic curve and exploratory factor analysis were used to evaluate the scale, which had a score ranging from 0 to 100.
RESULTS
There was no difference in mean age and sex in patients with RBD and control subjects. Patients with RBD had a significantly higher total RBDQ-KR score than the control group (P < .001). The RBDQ-KR demonstrated high sensitivity (93.3%), specificity (89.5%), positive predictive value (89.9%), and negative predictive value (93.1%). Cronbach α coefficient for internal consistency of the total score of the RBDQ-KR was 0.9, which shows high reliability. Exploratory factor analysis showed two components, dream-related and behavioral factors, consistent with the main clinical features of RBD. Based on the results, the best cutoff for the total score ranging from 0 to 100 was at 18/19 and for factor 2 ranging from 0 to 75 was at 11.
CONCLUSIONS
This study showed RBDQ-KR is a valid and reliable questionnaire for RBD symptoms and severity in Korea. It serves as an effective tool to identify patients with RBD and to facilitate future clinical and research studies.
|
2023-01-01T19:13:39.601Z
|
208,339,743 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/0885713X9601100308",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
care systems, the traditional preeminence of the hospital as the center for patient care services, medical education, innovation, and research has waned somewhat. Therefore, this special issue is somewhat important to remind readers that the professional literature continues to promote scientific inquiry and reporting on topics that are predominately focused on hospital-based issues, initiatives, and studies. A number of articles published during recent months exemplify the rich array of medical quality management activities that are underway in hospitals.
|
2022-01-27T18:34:43.187Z
|
151,415,724 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.24201/edu.v15i02.516",
"MAG": "2567005167",
"PubMedCentral": null
},
"license": "CCBYNCND",
"status": "HYBRID",
"url": "https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/download/516/509"
}
|
Parvis Khalatbari (comp .), Bevolkerungs-Theorie und Bevolkerungs politik, Akademie-Verlag. Berlin 1981.
|
2022-03-04T12:08:56.710Z
|
6,750,929 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICFCC.2010.5497519",
"MAG": "2038038945",
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},
"license": null,
"status": null,
"url": null
}
|
The self-similarity of complex has extensive practical background in real world. It is similar to the phenomena of social relationships: “things of one kind come together, birds of a feather flock together”. Hence, we proposed the self-similarity network evolving model based on attributes similarity between the nodes. In network each node has the attribute value, by this computed similarity between the nodes. If two nodes attribute similarity falls in certain sector, then established the connection between nodes. The simulations make clear that the degree distribution of the self-similarity network similar to the small-world networks. The clustering and the average path of the self-similarity network are smaller than BA model and are bigger than small world. Similarity network model is a new characteristic of complex network except the BA mode and the small world mode. On the other hand, the self-similarity network has good robustness to random fault and deliberately attack.
|
2022-09-08T06:16:54.976Z
|
81,000,823 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4103/JOTR.JOTR_18_18",
"MAG": "2900497811",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Background: Chronic Anterior Knee pain is the most common post-operative complication following Intramedullary interlocking nailing of Tibial shaft fractures. Its incidence has been reported to range between 10 % to 86% but no definite cause can be attributed. This study was conducted to analyse the prevalence & severity of anterior knee pain in post tibial nailing patients with relation to nail protrusion, approach and proximal screw size. Methods and Material: 92 consecutive patients with an isolated tibia shaft fracture; treated with reamed IMIL nailing from 2014 to 2016 were included in the study. Chronic Anterior knee pain was assessed as per VAS. Besides X-ray, Ultrasound evaluation of patellar tendon morphology and nail protrusion was done. Statistical analysis used: student t test. Chi square test. Results: In the symptomatic group (28), 25patients (89%) had nail protrusion and only 3 patients (11%) did not have nail protrusion beyond proximal tibia cortical bone. In asymptomatic group, 20(33%) patients had nail protrusion and 40(67%) patients did not have nail protrusion. This difference was statistically significant with P value 0.00. In symptomatic group, 11(39%) patients had larger screws and 17(61%) patients had normal length screws. In asymptomatic group, 41(68%) patients had normal length and 19(32%) had large screw. P value came out to be 0.48. Conclusions: Anterior knee pain may be related to protrusion of nail beyond proximal tibial cortical bone [p value 0.01], and larger proximal screw length [p value 0.08].
|
2022-10-28T00:17:51.927Z
|
122,610,575 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/NME.1620371905",
"MAG": "2081250717",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
New multiple-quadrature-point underintegrated finite elements with hourglass control are developed. The elements are selectively underintegrated to avoid volumetric and shear locking and save computational time. An approach for hourglass control is proposed such that the stabilization operators are obtained simply by taking the partial derivatives of the generalized strain rate vector with respect to the natural co-ordinates so that the elements require no stabilization parameter. To improve accuracy over the traditional one-point-quadrature elements, several quadrature points are used to integrate the internal forces, especially for tracing the plastic fronts in the mesh during loading and unloading in elastic–plastic analysis. Two- and four-point-quadrature elements are proposed for use in the two- and three-dimensional elements, respectively. Other multiple-quadrature points can also be employed. Several numerical examples such as thin beam, plate and shell problems are presented to demonstrate the applicability of the proposed elements.
|
2022-12-12T19:28:44.927Z
|
253,257,830 |
{
"externalids": {
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"DOI": "10.1111/jocn.16563",
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"license": null,
"status": null,
"url": null
}
|
AIMS AND OBJECTIVES
The purpose of this paper was to clarify the concept of ethical conflict in nursing and highlight the importance of tackling this issue.
BACKGROUND
Ethical conflict is on the rise in the nursing context. It is associated with the compromise of nurses' well-being and patient care. However, there is no thorough conceptual understanding of this concept.
DESIGN
Concept analysis.
METHODS
Databases (PubMed, PsycINFO, CINAHL, Scopus, Embase, Web of Science and SocINDEX) were searched for studies between 1984 and 2021. Both quantitative and qualitative studies related to ethical conflict in nursing were included. Walker and Avant's method of concept analysis was used to identify the defining attributes, antecedents and consequences of the concept of ethical conflict in nursing. We followed the PRISMA-ScR checklist to report the study.
RESULTS
Thirty studies were included for conceptualization. Defining attributes were divided into four categories: (1) emotional responses, (2) incompatible values, (3) competing interests and (4) ambiguous obligations. The antecedents were (1) ethical sensitivity, (2) negative ethical climate, (3) insufficient authority, (4) unrealistic expectations, (5) poor collaboration and (6) inadequate resources. The consequences were identified as (1) moral residue, (2) loss of identity, (3) professional burnout and (4) poor patient care.
CONCLUSIONS
A unified conceptual model of ethical conflict in nursing shed light on the ethical issues nurses might come across in practice. Despite the fact that ethical conflict is inherently negative, we conceptualised this concept as a neutral fact and an opportunity for nursing action. The construct identification provides basis for both the development of practice and the development of staff support and education.
RELEVANCE TO CLINICAL PRACTICE
A clearer understanding of such an important facet of nursing practice helps nurses raise awareness of ethical conflict and implement effective coping strategies to improve their well-being and patient care.
NO PATIENT OR PUBLIC CONTRIBUTION
This is a review article conducted by the researchers, so there is no patient or public contribution.
|
2022-11-05T16:26:04.641Z
|
34,542,605 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/j.1399-302X.2008.00432.x",
"MAG": "2098773566",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
INTRODUCTION
Periapical lesions arise as a result of the activation and interaction of the host immune responses against root canal infection. Recently identified Toll-like receptors (TLR) seem to be involved in the recognition and development of immune responses against a myriad of microorganisms. However, very little information is available on the role of TLR in the induction of periapical lesions.
METHOD
The role of TLR-2 and TLR-4 in the activation of murine macrophages stimulated using Fusobacterium nucleatum and Peptostreptococcus anaerobius was investigated. The production of nitric oxide (NO) and reactive oxygen species (ROS) was assessed.
RESULTS
The results demonstrate that TLR-2 and TLR-4 are involved in the production of ROS by activated macrophages. The microorganisms induced similar levels of NO production by TLR-2-competent and TLR-2-deficient macrophages, regardless of the addition of interferon-gamma (IFN-gamma), ruling out a role for TLR-2 in the NO production induced by these bacteria. Only P. anaerobius induced NO production by TLR-4-competent macrophages without the addition of IFN-gamma. However, after IFN-gamma addition, F. nucleatum induced macrophage NO production. Therefore, NO production stimulated by IFN-gamma and these microorganisms seems to be TLR-4-independent.
CONCLUSION
TLR-2 seems to be involved in the induction of ROS production by macrophages in response to prevalent root canal bacteria, while only F. nucleatum induced ROS production by TLR-4-competent macrophages. Both microorganisms significantly induced large amounts of NO independent of TLR-2 and TLR-4. We conclude that microorganisms may participate in the induction and progression of periapical lesions through NO and ROS production by activated macrophages.
|
2022-12-20T00:07:26.025Z
|
225,867,428 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.15863/tas.2020.05.85.8",
"MAG": "3035415490",
"PubMedCentral": null
},
"license": null,
"status": "GOLD",
"url": "https://doi.org/10.15863/tas.2020.05.85.8"
}
|
This article covers the issues of territorial development and development of industrial sectors in Surkhandarya region.
|
2022-01-27T18:33:33.124Z
|
231,340,151 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3760/CMA.J.ISSN.1008-6706.2002.10.016",
"MAG": "3029182032",
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},
"license": null,
"status": null,
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}
|
目的探讨孕期全程监护与胎教对胎儿体重及大脑发育的影响.方法对30例确诊早孕者进行登记,并进行孕期全程监护,包括抽血查TORCH,定期产检,营养健康指导,胎教音乐磁带及录像,电话热线咨询,阅读孕期知识小册等.分娩后记录新生儿体重,Apgar评分,新生儿神经行为20项评分,并与对照组比较.结果实验组新生儿体重＞对照组,实验组新生儿神经行为20项评分＞对照组,P＜0.05,差异有显著意义.结论孕期全程监护及胎教,有助于胎儿发育,提高新生儿体重,促进大脑发育,特别是音乐胎教能使婴儿在出生时就具备良好的感觉功能,该方法简便易行,值得广泛推广应用.
|
2022-01-27T10:52:56.197Z
|
27,348,726 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1203/00006450-198507000-00195",
"MAG": "2023450838",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://www.nature.com/articles/pr19852407.pdf"
}
|
We have shown previously that removal of purines and pyrimidines from the diet (nucleotide free diet-NFD) decreases immune responses both in vivo and in vitro. Allograft rejection and mixed lymphocyte responses and resistance to infectious organisms were all significantly influenced by NFD as compared to chow or NFD with RNA or isolated bases added. NFD affects T-helper cell number and functions as well as suppressor cell activity. In addition, NFD significantly decreases graft-versushost disease mortality in allogeneic bone marrow irradiation chimeras suggesting that NFD impairs the functional T-cell maturation. To determine if this immunologic depression in our various diet fed mice is due to impaired maturation of T-lymphocytes, we assessed lymphoid tissues for the presence of terminal deoxynucleotidyl transferase (TDT). This enzyme is a well characterized marker for immature T-lymphocytes. A statistically higher number of cells positive for TDT activity were found in the thymus and bone marrow of mice on NFD (p<0.02) as compared to cells from animals on chow or NFD with added RNA, uracil, or adenine. These results are consistent with a requirement for either a pyrimidine or purine or both for development of T-helper cell populations. These effects are likely due to a greater dependence of these cells on nucleotide salvage in Gl phase than other lymphocytes. (Supported by Grants 14030 and 35492 from the NCI.)
|
2022-02-12T15:32:54.190Z
|
53,028,291 |
{
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"ArXiv": null,
"DOI": "10.1504/IJHPCN.2018.10016379",
"MAG": "2894078009",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Colourisation is a kind of computer-aided technology which automatically adds colours to greyscale images. This paper presents a scribble-based colourisation method which treats the flat and edge pixels differently. First, we classify the pixels to flat or edge pixel categories using the neighbourhood similarity pixels searching algorithm. Then, we compute the weighted coefficients of the edge pixels by solving a constraint quadratic programming problem and compute the weighted coefficients of the flat pixels based on their luminance distances. Finally, we transmit the weighted coefficients to the chrominance images according to the joint correlation property between luminance and chrominance channels, and combine with the colours scribbled on by the user to compute all the unknown colours. The experimental results show that our method is effective especially on reducing colour bleeding in the boundary parts and can give better results when only a few colours are scribbled on.
|
2022-02-11T22:04:49.821Z
|
85,324,066 |
{
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"ArXiv": null,
"DOI": "10.1271/BBB1961.39.1969",
"MAG": "2070735579",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A small amount of the component accompanied with human chorionic somatomammotropin has been separated on Sephadex ion exchanger. When polyacrylamide disc gel electrophoresis was performed at pH 9.3, the two bands were very close each other in electrophoretic mobility. They possess lacogenic activity for the pigeon crop sac test. A comparison of their physicochemical properties was made. The major component was in excellent agreement with the minor more acidic component in amino acid analyses, n-terminal amino acid analyses and circular dichroism studies. Immunological studies indicated some common properties between them, whereas they differed significantly in the electrophoretic mobility of precipitin arc.
|
2022-02-10T23:25:34.469Z
|
119,704,403 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1086/529511",
"MAG": "1995448791",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
We study collisions between dust aggregates to construct a model of their structural evolution in protoplanetary disks. We carry out three-dimensional simulations of aggregate collisions and examine their compression and disruption processes following our previous two-dimensional simulations. We take clusters of ballistic cluster-cluster aggregation (BCCA) formed by a hit-and-stick process as initial structures and study their head-on collisions with the use of realistic binding forces. Our numerical results indicate that the energy criteria for compression and disruption of BCCA clusters are consistent with previous two-dimensional simulations. For aggregate compression at a collision, we succeed in obtaining a scaling law in which the gyration radius of the resultant aggregate is proportional to E−0.10imp, where Eimp is the impact energy. Furthermore, we derive an “equation of state” of aggregates which reproduces the scaling law for compression. The equation of state is useful for describing the density evolution of dust aggregates during their growth.
|
2022-12-26T07:48:18.273Z
|
159,118,078 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5860/choice.38-4664",
"MAG": "1496193468",
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GREEN",
"url": "https://www.h-net.org/reviews/showpdf.php?id=6842"
}
|
Introduction 2. Immigration control 3. Control without visas 4. New restrictions after the Anschluss, March to October 1938 5. From Kristallnacht to the outbreak of war, November 1938 to September 1939 6. Refugees from Czechoslovakia 7. War-time policy 8. The response to the Holocaust 9. Post-war decisions 10. Conclusion.
|
2022-12-30T00:53:05.084Z
|
84,382,311 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1158/1538-7445.AM2011-2975",
"MAG": "2000228530",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL
Diverse approaches have shown that interphase Cyclin dependent kinases 2, 4, and 6 drive phosphorylation of retinoblastoma family proteins, transcription of E2F-dependent genes, and entry into the cell cycle in cultured mammalian cells. In contrast, targeted gene disruption of interphase Cdks and activating E2Fs in mice, individually and in combination, is surprisingly well tolerated. For example, absence of all activating E2Fs did not reduce proliferation of intestinal epithelial cells, the most highly proliferative cells in mammals. These observations have raised doubt about the need for Cdk2/4/6 and E2F activity for most normal development and tissue homeostasis. However, targeted gene disruption carries the important caveat of protein under-expression. Absence of interphase Cdks creates voids filled by Cdk1, which displays compensatory increased binding to interphase cyclins. In an alternative approach to dissect the role of Cdk2/4/6 in normal tissues, we generated transgenic mice with conditional expression of p16Ink4a from a doxycycline (Dox)-inducible promoter (TetO-p16). p16 is a major tumor suppressor and specific Cdk2/4/6 inhibitor. p16 accumulates and contributes to cell cycle arrest in settings of replicative senescence, neoplasia, pre-neoplasia, and certain aging progenitors. Nonetheless, the ability of p16 to inhibit cell cycle entry in most normal tissues remains unclear. TetO-p16 mice are healthy and fertile but a few demonstrated spontaneous patches of alopecia, suggesting that leaky p16 expression may cause deficits in hair regeneration. To achieve broad p16 induction, we mated TetO-p16 mice to mice that express the reverse tetracycline transactivator from a cytomegalovirus promoter (CMV-rtTA). Exogenous p16 induction was readily detected by immunoblotting, immunohistochemistry, and immunofluorescence. Consistent with known properties of the CMV-rtTA transgene, Dox treatment resulted in widespread but mosaic p16 induction. In intestinal epithelial cells, exogenous p16 bound efficiently to Cdk4. p16 expression in crypt transit-amplifying cells inhibited bromodeoxyuridine (BrdU) incorporation by 75%. Expression in stem cells marked by the Lgr5-lacZ transgene inhibited BrdU incorporation by 85%. Mice treated with Dox from day 20 to 40 developed proliferative deficits in all rapidly renewing tissues and features of premature aging, including intestinal shortening, hair loss and hypopigmentation, weight loss, reduced fat stores, and anemia. These results suggest that Cdk2/4/6 activity is required for normal tissue maturation and homeostasis, that p16 is an effector of aging, and that inhibition of cell proliferation is sufficient to elicit signature features of aging. Initial results suggest that at least some p16-imposed aging features are reversible.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 2975. doi:10.1158/1538-7445.AM2011-2975
|
2022-02-11T00:23:41.429Z
|
42,582,577 |
{
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"ArXiv": null,
"DOI": "10.3928/0279-3695-19980401-13",
"MAG": "2607902101",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
1. When clients share their experiences with students, the experience helps sensitize students to the stigma of mental illness, and also facilitates the client's recovery. 2. Encouragement from staff, clinicians, other clients, and family members that they can succeed at this next step in what most often motivates a client-consumer to "try" something new or "try again". 3. Client involvement in community activities is effective in normalizing daily life experiences and in breaking down the barrier of stigma.
|
2022-12-11T20:08:34.869Z
|
11,079,772 |
{
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"ArXiv": null,
"DOI": "10.1021/ja4052075",
"MAG": "2949524804",
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},
"license": null,
"status": "GREEN",
"url": "https://europepmc.org/articles/pmc3756902?pdf=render"
}
|
Highly congested vicinal stereocenters comprised of tertiary and all-carbon quaternary centers were generated via Ir-catalyzed asymmetric allylic alkylation of β-ketoesters. These catalytic reactions proceed in excellent yields with a broad scope on either reaction partner and with outstanding regio-, diastereo-, and enantiocontrol. Implementation of a subsequent Pd-catalyzed alkylation affords dialkylated products with pinpoint stereochemical control of both chiral centers.
|
2022-12-13T12:51:22.816Z
|
244,937,839 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21603/2782-2435-2021-1-2-123-135",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "HYBRID",
"url": "https://doi.org/10.21603/2782-2435-2021-1-2-123-135"
}
|
Over its 300-year history, the Kuzbass Region has become one of the strongest industrial and coal mining areas. However, new environmental requirements stipulated by the Paris Agreement and the EU Energy Strategy require a new diversified and innovative economy, i.e. comfortable conditions for people to live and do business. The Strategy for Socio-Economic Development of Kuzbass through 2035 was approved by Regional Law No. 163‑OS on December 23, 2020. The Strategy covers human capital, ecology, reclamation water resources, digitalization, economy, investment, tourism, exhibitions, etc. All these aspects are highlighted in the monographs of the Strategy of the Kuzbass Region. The publications prove that a long-term strategy should combine traditional and novel competitive advantages of the region, which include hydrogen cluster, transport infrastructure, digitalization of business and other spheres, better environmental conditions, forest and land reclamation, sustainable use of water resources, as well as the importance of rebranding the region on the domestic and international arena.
|
2022-12-25T16:55:39.676Z
|
42,985,696 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/00220345560350020201",
"MAG": "2079978029",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
IN RECENT years there have been many reports1' 2 submitted and devices constructed to measure the forces acting on the dental arch. Most of these were concerned with vertical forces, or occlusal biting forces. The purpose of this experiment was to devise a technic to determine how much force the tongue could exert on a denture in an anterior direction in the area of the lower anterior teeth, and in a lateral direction on a lower denture in the second premolar-first molar area.
|
2022-09-10T07:01:21.013Z
|
214,515,711 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.6066/jtip.2019.30.2.152",
"MAG": "3004362358",
"PubMedCentral": null
},
"license": "CCBYSA",
"status": "GOLD",
"url": "https://journal.ipb.ac.id/index.php/jtip/article/download/24266/PDF"
}
|
Moringa oleifera seed has the potential as a source of new food ingredients having high nutritional content, especially protein. The objective of this study was to evaluate the effect of fermentation toward biochemical composition and in vitro protein digestibility (IVPD) of Moringa seed flour. Fermentation was carried out by soaking the seeds at room temperature (30±2°C) for 24 and 48 h, either naturally (without starter addition) and with starter addition (i.e. commercial starter containing lactic acid bacteria/LAB). Unfermented and fermented seeds were processed into flour and their proximate composition, antitrypsin, tannin and IVPD were analyzed. The statistical methods used were ANOVA and Duncan's test at confi-dence level of 95%. The best treated flour was chosen using the De Garmo method and the amino acid profile was then analyzed. Protein digestibility-corrected amino acids (PDCAAS) were calculated to deter-mine the biological quality of proteins. The results showed that fermentation affected the changes in bio-chemical composition of the flour. Longer fermentation time could reduce the crude protein and antitrypsin content in both types of fermentation. On the other hand, there was an increase in tannin content during fermentation. The IVPD also increased by 75% at 48 h fermentation from the initial digestibility of raw seeds of 71%, thus increase in tannin content did not affect the IVPD. Natural fermentation of moringa seeds for 48-hour resulted in the best flour with IVPD and PDCAAS values of 75.33% and 0.18 (18.31%) respectively.
|
2022-10-28T00:10:56.305Z
|
10,411,761 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1063/1.3555834",
"MAG": "2032017885",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
In recent years, the study of chaotic and complex phenomena in electronic circuits has been widely developed due to the increasing number of applications. In these studies, associated with the use of chaotic sequences, chaos is required to be robust (not occurring only in a set of zero measure and persistent to perturbations of the system). These properties are not easy to be proved, and numerical simulations are often used. In this work, we consider a simple electronic switching circuit, proposed as chaos generator. The object of our study is to determine the ranges of the parameters at which the dynamics are chaotic, rigorously proving that chaos is robust. This is obtained showing that the model can be studied via a two-dimensional piecewise smooth map in triangular form and associated with a one-dimensional piecewise linear map. The bifurcations in the parameter space are determined analytically. These are the border collision bifurcation curves, the degenerate flip bifurcations, which only are allowed to occur to destabilize the stable cycles, and the homoclinic bifurcations occurring in cyclical chaotic regions leading to chaos in 1-piece.
|
2022-10-25T10:29:53.041Z
|
145,344,532 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/2158244015577669",
"MAG": "2154240546",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "http://journals.sagepub.com/doi/pdf/10.1177/2158244015577669"
}
|
Of the three formal dispute resolution procedures provided by the Individuals With Disabilities Education Act of 2004(IDEA), due process hearings are the most costly in terms of time, fiscal resources, and impact on relationships between school personnel and parents. This study examined 258 due process hearings held over the past 8 years in Massachusetts to examine the characteristics of students at the center of these disputes, the issues that were addressed in the hearings, and the representation utilized by parents and school districts. The findings from this study indicated that (a) Massachusetts school districts utilized attorney representation and won due process hearings at notably higher levels than parents, and (b) the most frequently addressed issues at due process hearings were Individualized Education Program (IEP) development/implementation and educational program placement, which are issues that represent the core mandate of IDEA to provide a free appropriate public education in the least restrictive environment (34 C.F.R. §300.300, 300.550). The authors present recommendations for policy actions and areas for future research.
|
2022-12-12T19:50:56.139Z
|
248,667,861 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1208/s12249-022-02291-z",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Nature has been used as therapeutic resources in the treatment of diseases for many years. However, some natural compounds have poor water solubility. Therefore, physicochemical strategies and technologies are necessary for development of systems for carrying these substances. The self-emulsifying drug delivery systems (SEDDS) have been used as carriers of hydrophobic compounds in order to increase the solubility and absorption, improving their bioavailability. SEDDS are constituted with a mixture of oils and surfactants which, when come into contact with an aqueous medium under mild agitation, can form emulsions. In the last years, a wide variety of self-emulsifying formulations containing bioactive compounds from natural origin has been developed. This review provides a comprehensive overview of the main excipients and natural bioactive compounds composing SEDDS. In addition, applications, new technologies and innovation are reviewed as well. Examples of self-emulsifying formulations administered in different sites are also considered for a better understanding of the use of this strategy to modify the delivery of compounds from natural origin.
|
2022-12-18T10:11:50.787Z
|
131,655,432 |
{
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"ArXiv": null,
"DOI": "10.2113/GSEEGEOSCI.17.1.92",
"MAG": "2316162695",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Earth Surface Processes, Landform, and Sediment Deposits is a massive compendium by Bridge and Demicco and a must-have book for the engineering geologist because it so completely covers the full spectrum of surficial geologic issues with which we contend on most projects. Earth surface processes include landslides, debris flows, river floods, storm and tsunami surges, erosion and weathering, subsidence and uplift, neotectonics, and volcanism. All of these, and more, are richly covered in this book. However, in addition to just introducing processes as effects, Bridge and Demicco show how to recognize them in the geologic environment of landforms and in the sedimentary environment. Composed of 815 pages broken into twenty chapters, this book contains 52 pages of references and over 1800 citations, a 20 page index, and 572 figures, many of which are composite figures, and many of which are also original. The book is priced at only £45.00, an excellent value for the content of the book.
From chapter 1, “Definitions, Rationale and Scope of the Book,” it is clear that the authors understand that knowledge of the interconnection of earth systems is critical to the engineering geologist in terms of site characterization and prediction, and also in site remediation and restoration. The authors intend the book for the undergraduate- or beginning graduate-level student, but the book is invaluable as a reference for any professional geologist. In my opinion, the book's text is too “geological” for most geotechnical engineers, but the profusion of illustrations make for a good skim …
|
2022-12-20T11:34:42.707Z
|
17,495,418 |
{
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"ArXiv": null,
"DOI": "10.1109/ACC.2010.5531498",
"MAG": "2089752882",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this paper, the stability of a switched linear regular descriptor system is considered. It will be shown that if a certain simultaneous triangularization condition on the subsystems is fulfilled and all the subsystems are stable then the switched system is stable under arbitrary switching. The result involves different descriptor matrices and extends to the singular case well-known results from the standard one. Furthermore, an explicit construction of a common Lyapunov sequence for a set of discrete-time regular linear descriptor subsystems is performed. The main novelty of the proposed approach is that the common Lyapunov sequence can be easily computed in comparison with previous works which either presented computationally-demanding methods or did not construct the common Lyapunov sequence explicitly.
|
2022-12-20T20:30:55.009Z
|
153,482,801 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1596/0-8213-4444-7",
"MAG": "1846353168",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The magnitude of population displacement and its consequences have placed the issues of reconstructing the livelihoods of those displaced on the world's development agenda. Addressing these issues from a novel perspective, 'Risks and Reconstruction' offers a comparative analysis of the two largest groups of the world's displaced populations: resettlers being uprooted by development programs and refugees fleeing military conflicts or natural calamities. The book explores the condition of being 'displaced, ' the risks of impoverishment and social disarticulation, the rights and entitlements of those uprooted, and most importantly, how these groups can reconstruct their livelihoods. It uses a common set of concepts, derived from the impoverishment risks and reconstruction model. The world's interest in forced resettlers and refugees has considerably increased in the last two decades. About 10 million people around the world are displaced and resettled every year by development programs. Many governments, responding to national and international concerns, have strengthened their policies and assistance programs in this area. In the book, scholars and practitioners report on new empirical research, ideas and development projects from many parts of the world, including China, India, Africa, Argentina, Colombia, Greece. Although this volume focuses on developing countries, experiences from developed countries are also discussed. 'Risks and Reconstruction' is an invaluable reference tool for policymakers, academics, development practitioners, nongovernmental organizations, aid and refugee agencies, and anyone interested in today's international development issues.
|
2022-12-23T07:52:16.289Z
|
237,978,782 |
{
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"ArXiv": null,
"DOI": "10.21831/jep.v18i1.38688",
"MAG": "3173844689",
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},
"license": "CCBYSA",
"status": "GOLD",
"url": "https://journal.uny.ac.id/index.php/jep/article/download/38688/pdf_1"
}
|
Abstrak: Penelitian ini bertujuan untuk mengidentifikasikan nilai-nilai strategis, menganalisis lingkungan strategis yang mempengaruhi, dan merumuskan strategi yang dapat berfungsi secara efektif dan efisien dalam peningkatan kompetensi guru. Fokus penelitian ini mengenai strategi peningkatan kompetensi guru, sehingga menggunakan analisis SWOT sebagai instrumen utama dalam mengukur lingkungan untuk memperoleh strategi yang diperlukan dalam proses penyusunan perencanaan peningkatan kompetensi guru. Informan yang digunakan dalam pengumpulan data yaitu kepala sekolah, guru, siswa, pihak Dinas Pendidikan, yayasan, orang tua siswa, dan stakeholder terkait. Penentuan informan tersebut menggunakan teknik snowballing. Proses analisis yang dilakukan dengan identifikasi lingkungan internal dan eksternal untuk menilai kelemahan, kekuatan, peluang, dan ancaman dalam peningkatan kompetensi guru. Kemudian menganalisis strategi berdasarkan data-data yang ditemukan, baik mengenai kelemahan, kekuatan, peluang, maupun ancaman yang dimiliki ke dalam analisis SWOT, sehingga menghasilkan strategi SO, WO, ST, dan WT. Langkah selanjutnya yaitu mengidentifikasi isu-isu strategis berdasarkan hasil dari analisis SWOT dengan menggukanan tes litmus untuk menentukan alternatif-alternatif strategi, sehingga diperoleh penetapan strategi peningkatan kompetensi guru sebagai usaha intensifikasi pelaksanaan program pengembangan kompetensi guru. Abstract: This study aims to identify strategic values, analyze the influencing strategic environment, and formulate strategies that can effectively and efficiently increase teacher competence. This research focuses on strategies for improving teacher competence. It uses SWOT analysis to measure the environment to obtain the system needed in planning teacher competency improvement. The informants used in data collection were school principals, teachers, students, the Education Department, foundations, parents of students, and related stakeholders. Determination of the informants using snowballing techniques. The analysis process is carried out by identifying the internal and external environment to assess weaknesses, strengths, opportunities, and threats in increasing teacher competence. Then analyze the strategy based on the data found, both regarding the flaws, strengths, opportunities, and threats that are owned into the SWOT analysis, to produce SO, WO, ST, and WT strategies. The next step is to identify strategic issues based on the SWOT analysis results by using a litmus test to determine strategic alternatives to obtain a method for improving teacher competence to intensify the implementation of teacher competency development programs.
|
2022-06-03T13:35:21.186Z
|
24,271,674 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.2298/MPNS0210407S",
"MAG": "2020702053",
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},
"license": null,
"status": null,
"url": null
}
|
Obesity is characterized by excessive body fat accumulation which may lead to serious health problems and complications. Body mass index is the most optimal parameter to evaluate the level of nutritional status and diagnose obesity. However, modern techniques studying body composition can more accurately determine whether the gain of body weight was on the account of body fat, lean body mass or total body water. If one's body mass index is in the range of normal values but the amount of body fat is above normal range, we talk about sarcopenic obesity. In order to evaluate presence of sarcopenic obesity, a group of 140 normal weight students of the Faculty of Medicine in Novi Sad were measured. Apart from standard anthropometrical parameters the amount of body fat was also determined by using the method of bioelectrical impedance analysis. Sarcopenic obesity was diagnosed in 25.71% of examined students. By using body mass index values this type of obesity cannot be diagnosed, and knowing that a higher amount of body fat in normal weight persons can lead to complications, especially metabolic, it is of great importance to evaluate the amount of body fat accurately.
|
2022-08-27T05:30:35.814Z
|
118,334,816 |
{
"externalids": {
"ACL": null,
"ArXiv": "0706.2688",
"DOI": "10.1063/1.2778353",
"MAG": "1648810159",
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "http://arxiv.org/pdf/0706.2688"
}
|
The authors report about La0.67Sr0.33MnO3 single crystal manganite thin films in interaction with a gold capping layer. With respect to uncoated manganite layers of the same thickness, Au-capped 4nm thick manganite films reveal a dramatic reduction (≃185K) of the Curie temperature TC and a lower saturation low temperature magnetization M0. A sizable TC reduction (≃60K) is observed even when an inert SrTiO3 layer is inserted between the gold film and the 4nm thick manganite layer, suggesting that this effect might have an electrostatic origin.
|
2022-09-10T04:10:53.245Z
|
906,501 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1728-4457.2005.00068.X",
"MAG": "2138936919",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The own-children method, an indirect technique, is used to estimate fertility rates for two populations of Tibetans during the 1980s and 1990s: a sample of rural villages in the Tibet Autonomous Region of China and exiles living in India and Nepal. The analysis provides evidence that these two populations underwent remarkably similar fertility transitions in both timing and magnitude. In both cases total fertility rates declined from over six births per woman to below the level of replacement in a span of 15 years. The parallel nature of these fertility transitions is intriguing given that, although the populations share a common ethnic identity, they have lived under sharply differing political, economic, and social conditions since the 1960s. Copyright 2005 The Population Council, Inc..
|
2022-09-13T22:34:32.217Z
|
7,776,025 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1093/JNCIMONOGRAPHS/LGH017",
"MAG": "2117509872",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This article focuses on the routine use of patient-reported outcomes measures in oncology clinical practice to monitor patient progress and inform decision making; and in particular, on measuring patient-reported health-related quality of life (HRQOL). The article summarizes the current literature on the acceptability to patients and clinicians of HRQOL measurement and on the effectiveness of feedback to clinicians about their patients' concerns and quality of life. It also describes the experiences recounted by clinicians and researchers who have been implementing such efforts and concludes that in the United States, little HRQOL measurement occurs in oncology practice. That is, much methodological development has occurred, but many challenges to its widespread adoption exist. These challenges include limitations in knowledge about how to apply outcomes instruments, and clinician, patient-related, and health system issues. That effort deserves significant attention now. The way forward, however, does not lie simply in adding HRQOL measurement to other tasks that are part of everyday practice. Rather, attention to principles of effective dissemination and new information infrastructures and technologies, combined with redesign of care, should embed the routine use of patient-reported outcomes in the care process to provide timely response to patients' needs for information and services.
|
2022-12-20T00:05:19.908Z
|
73,676,171 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2139/ssrn.2620435",
"MAG": "652932701",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We explore the relationship between individual control perceptions and the degree to which a country's institutions and policies are consistent with the principles of economic freedom. Using data from the World Values Surveys (WVS) and the Economic Freedom of the World (EFW) index, we find that people living in more economically free countries are more likely to perceive greater control over their lives. This effect is not diminishing at higher levels of economic freedom. One possible channel that explains this relationship is the perception of procedural fairness and social mobility. Decomposing the EFW index, we further find that the area of sound money is what drives the results.
|
2022-12-25T13:03:00.822Z
|
54,944,385 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5897/IJPS2016.4530",
"MAG": "2562052958",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Fifteen iron ore samples collected from Wadi Sawawin, Duba, Saudi Arabia were analysed using X-ray diffraction in order to determine mineral composition. Atomic absorption analysis was used to determine concentrations of Al, Ca, Fe, K, Mg, Bi, Pb, Th and U. Natural radioactivity concentrations were determined using gamma-ray spectrometry based on a hyper pure germanium (HPGe) detector; concentrations ranged from 1.89±0.39 to 4.50±0.53 Bq kg-1, 1.21±0.16 to 3.60±0.56 Bq kg-1 and detection level to 10.33±1.32 Bq kg-1 for 226Ra, 232Th and 40K, respectively. In order to assess the potential radiological risks to human health, the absorbed dose rate, radium equivalent activity, annual absorbed dose and external hazards were determined and compared to limits recommended by UNSCEAR. Results were within recommended safe ranges, meaning that the area under study is radiologically safe for habitation and that local iron ores are radiologically safe to be used as construction materials.
Key words: Atomic absorption spectrometer, natural radioactivity, radiological hazard, X-ray powder diffraction (XRD).
|
2022-02-11T20:20:08.845Z
|
44,938,375 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.5505/JAEMCR.2013.94695",
"MAG": "2317933572",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Nitrophenols are common components of industrial effluents and have been detected in urban and agricultural waste. Dinitroortho-cresol (DNOC) can easily enter the body through inhalation, ingestion or the skin. Yellow staining is typical in toxications via skin contact. The main toxic effects of DNOC derivatives are due to an increase in cellular metabolism. It acts directly on metabolism by inducing cellular oxidation and inhibiting phosphorylation, leading to the uncoupling of oxidative phosphorylation. Cardiovascular effects appear to be secondary to cellular anoxia. We report here two consecutive patients admitted to the emergency department with an initial diagnosis of toxic exposure to DNOC. Further examination revealed that toxic exposure led to simultaneous acute coronary syndrome.
|
2022-02-12T01:01:50.271Z
|
208,016,927 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1504/ijmtm.2019.10024837",
"MAG": "2981771896",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Due to globalised marketing, supply chain of leather industries in India are now facing variety of risks. Hence, modelling and analysis of supply chain risk becomes paramount important. In this article, the major risks that affect the supply chain performance of leather industries in India were identified through systematic literature review and experts opinion. These risks are grouped using exploratory factor analysis (EFA) and the grouped risks are confirmed using confirmatory factor analysis (CFA). Structural equation modelling (SEM) was created and analysed. It is found that demand risks influence the operation risk with high impact. This analysis helps in understanding the relationship and the impact of each risk with other risks which in turn very much helpful in developing guidelines for managerial decision making process to mitigate supply chain risks.
|
2022-07-01T04:09:59.651Z
|
250,866,334 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/0253-6102/50/1/48",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Exchange anisotropy in FM/AFM bilayers has given a lot of static magnetization properties such as enhanced coercivity and magnetization loop shifts. These phenomena are primarily from the effective anisotropies introduced into a ferromagnet by exchange coupling with a strongly anisotropic antiferromagnet. These effective anisotropies can also be used to explain the dynamic consequences of exchange-biased bilayers. In this article, the dynamic consequences such as exchange-induced susceptibility, exchange-induced permeability, and the corresponding domain wall characteristics in the exchange-biased structures of ferromagnet/antiferromagnet1/antiferromagnet2 are studied. The results show that the second antiferromagnetic layer can largely affect the dynamic consequences of exchange-biased bilayers. Especially in the case of critical temperature, the effects become more obvious. Practically, the exchange anisotropy of biased bilayer system can be tuned by exchange coupling with the second antiferromagnetic layer.
|
2022-07-31T06:06:00.521Z
|
56,222,162 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.9744/JMK.16.1.17-26",
"MAG": "2098866971",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The purpose of this study was to explain the relationships between relational bonds, customers’ value, and customers’ loyalty of three consumer groups of Islamic banking in East Java. Samples were obtained from 613 Islamic banks’ customers in East Java and were analyzed using SEM. The findings were: For stayers, the three types of bonds raised utilitarian and hedonistic values, which raised loyalty. For dissatisfied switchers, only structural bond affected the utilitarian value, which raised loyalty. For satisfied switchers, social bond affected hedonistic value, while structural bond affected utilitarian value.
|
2022-09-03T06:35:52.109Z
|
26,900,303 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2486/INDHEALTH.25.225",
"MAG": "2032810226",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
gram of creatinine2) has been widely used for urinary biological monitoring.1) Previously, we established methods for the determination of concentrations of urinary metabolites of organic solvents by HPLC.3-10) An attempt was made in the present study to determine the concentrations of urinary metabolites and creatinine simultaneously by HPLC. Hippuric acid (HA), o-, mand p-methylhippuric acids (MHAs), and mandelic acid (MA) were obtained from Tokyo Kasei Co., Tokyo, and creatinine was
|
2022-09-09T11:23:18.924Z
|
28,725,793 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1093/brain/awt357",
"MAG": "2084701991",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://academic.oup.com/brain/article-pdf/137/3/683/13797650/awt357.pdf"
}
|
Many neurodegenerative disorders present with sensory loss. In the group of hereditary sensory and autonomic neuropathies loss of nociception is one of the disease hallmarks. To determine underlying factors of sensory neurodegeneration we performed whole-exome sequencing in affected individuals with the disorder. In a family with sensory neuropathy with loss of pain perception and destruction of the pedal skeleton we report a missense mutation in a highly conserved amino acid residue of atlastin GTPase 3 (ATL3), an endoplasmic reticulum-shaping GTPase. The same mutation (p.Tyr192Cys) was identified in a second family with similar clinical outcome by screening a large cohort of 115 patients with hereditary sensory and autonomic neuropathies. Both families show an autosomal dominant pattern of inheritance and the mutation segregates with complete penetrance. ATL3 is a paralogue of ATL1, a membrane curvature-generating molecule that is involved in spastic paraplegia and hereditary sensory neuropathy. ATL3 proteins are enriched in three-way junctions, branch points of the endoplasmic reticulum that connect membranous tubules to a continuous network. Mutant ATL3 p.Tyr192Cys fails to localize to branch points, but instead disrupts the structure of the tubular endoplasmic reticulum, suggesting that the mutation exerts a dominant-negative effect. Identification of ATL3 as novel disease-associated gene exemplifies that long-term sensory neuronal maintenance critically depends on the structural organisation of the endoplasmic reticulum. It emphasizes that alterations in membrane shaping-proteins are one of the major emerging pathways in axonal degeneration and suggests that this group of molecules should be considered in neuroprotective strategies.
|
2022-12-12T17:32:50.214Z
|