6,227 research outputs found
No news for Kerr-Schild fields
Algebraically special fields with no gravitational radiation are described.
Kerr-Schild fields, which include as a concrete case the Kinnersley photon
rocket, form an important subclass of them.Comment: 4 pages, Revtex
Analysis of the Literary Text's Conceptosphere in the Process of Teaching Literary Translation
AbstractThe paper is devoted to the problem of the concept “painting” realization in the “Moon and sixpence” by S. Maugham. It is argued that application of cognitive discourse analysis and analysis of the conceptosphere of the literary text is helpful in overcoming difficulties in interpretation of the original literary text. Various methods of studying literary text existing in modern methodology are shown. The contribution of Russian and foreign science in determining approaches to the analysis of communicative and cognitive components of the text and application of interdisciplinary approaches and consideration of cultural aspects of literary texts of the target language are emphasized. The need for incorporating development of important translational competences into the process of carrying out cognitive-discourse analysis of the literary text is demonstrate
НЕЛИНЕЙНОСТЬ И ФРАКТАЛЬНЫЕ СВОЙСТВА СЕЙСМОТЕКТОНИЧЕСКОЙ МОДЕЛИ EВРОПЕЙСКО- CРЕДИЗЕМНОМОРСКОГО РЕГИОНА
This paper presents research results of the study which aim is to reveal and quantitatively describe fractal properties of the European-Mediterranean seismotectonic model applied for seismic hazard assessment of the region under study.Several seismotectonic provinces are defined, and their nonlinear properties are calculated using both linear elements (boundaries of seismogenic units) and surface areas of the seismogenic units.The research is conducted on the basis of only formal relationships, not with data on real fault structures or other seismogenic elements, as the relationships have been accepted for seismic hazard calculations by the team of SESAME Project (Project Leader M. Jimenec) and published by Jimenec et al. [2001].Special attention is paid to the Balkan seismotectonic model in order to develop a common seismotectonic model which uses data from the seismic hazard map for a period of 475 years (according the EUROCODE8), that was published in Muco et al. [2008].All the calculations considered only the seismogenic units located in the earth crust, but not deeper seismogenic layers.It is concluded that most of the seismogenic provinces are similar in their fractal properties, which varied in a narrow range, except for the Adriatic one. The formal approach does not permit to explain these peculiarities.В статье представлены результаты исследований, целью которых было установление и количественная оценка фрактальных свойств сейсмотектонической модели Европейско-Средиземноморского региона, по которой была проведена оценка сейсмической опасности для изучаемого региона.Был выделен ряд сейсмотектонических провинций. Для них определены нелинейные свойства как по линейным элементам (как границам сейсмогенных участков), так и по площадям занимаемых ими поверхностей.Исследование проведено на базе формальных зависимостей, а не по реальным разломным структурам или другим сейсмогенным элементам, по методу, принятому для расчетов сейсмической опасности группой проекта SESAME (руководитель М. Jimenec) [Jimenec et al., 2001].Особое внимание уделено сейсмотектонической модели Балканского региона в связи с необходимостью разработки общей сейсмотектонической модели с использованием расчетов по карте сейсмической опасности за период 475 лет (в соответствии с EUROCODE8) по публикации [Muco et al., 2008].Для всех расчетов рассмотрены только сейсмогенные участки, расположенные в земной коре, без учета глубоких сейсмогенных слоев.Сделан вывод, что большинство сейсмогенных провинций характеризуются сходными фрактальными свойствами, которые варьируются в близком диапазоне, за исключением участка Адриатики. Формальный подход не позволяет найти объяснение таким особенностям
Teaching Literary Translation on the Basis of the Literary Text's Cognitive Discourse Analysis
AbstractThe traditional approaches to discourse's definition, the role of cognitive linguistics in work with literary texts on foreign languages and the translation lessons, the theoretical bases of discourse analysis, and also study of the text through a prism of cognitive approach are shown in our research paper. The method of teaching literary translation on the basis of cognitive discourse analysis of the text is also presented, given its scientific justification, which is efficiency confirmed in practice as a result of shown skilled and experimental work. Also, the system of the exercises and tasks directed on the formation of the corresponding competences is described in our research paper
Is the ground state of Yang-Mills theory Coulombic?
We study trial states modelling the heavy quark-antiquark ground state in
SU(2) Yang-Mills theory. A state describing the flux tube between quarks as a
thin string of glue is found to be a poor description of the continuum ground
state; the infinitesimal thickness of the string leads to UV artifacts which
suppress the overlap with the ground state. Contrastingly, a state which
surrounds the quarks with non-abelian Coulomb fields is found to have a good
overlap with the ground state for all charge separations. In fact, the overlap
increases as the lattice regulator is removed. This opens up the possibility
that the Coulomb state is the true ground state in the continuum limit.Comment: 10 pages, 9 .eps figure
Intracellular interactions between APOBEC3G, RNA, and HIV-1 Gag: APOBEC3G multimerization is dependent on its association with RNA
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens
Racial and ethnic differences in incident myocardial infarction in end-stage renal disease patients: The USRDS
African Americans have a greater risk of cardiovascular disease (CVD) than Caucasians in early chronic kidney disease; however, limited data describe racial and ethnic differences in the risk of incident myocardial infarction (MI) among patients with end-stage renal disease (ESRD). We conducted a prospective, observational cohort study among 271 102 incident dialysis patients receiving renal replacement therapy enrolled in the United States Renal Data System (USRDS) for whom Medicare was the primary insurer between 1995 and 2000. The incidence and risk of any MI (non-fatal or fatal) estimated by Cox proportional hazards models was the primary outcome of interest. Of those with prevalent CVD at baseline (118 708), 14 849 had an incident non-fatal MI compared with 9926 events for those without prevalent CVD (152 394). Patients with prevalent CVD had higher crude rates of combined fatal and non-fatal MI (99.3/1000 person-years vs 42.9/1000 person-years) compared with those without prevalent CVD. Among those with prevalent CVD, African Americans (adjusted relative risk (aRR)=0.65, 95% confidence interval (CI):0.62–0.68), Asian Americans (aRR=0.74, 95% CI: 0.66–0.83), and Hispanics (aRR=0.72, 95% CI: 0.68–0.77) were 26–35% less likely to have an incident MI compared to Caucasians. Similarly, among those without prevalent CVD, racial/ethnic minorities were 26–42% less likely to have an incident MI compared to Caucasians. We conclude that in a national setting where comparable access to dialysis and associated medical care, exist, racial/ethnic minorities were found to have a lower risk of non-fatal and fatal MI than Caucasians
Plasma Sprayed Bioceramic Coatings on Ti-Based Substrates: Methods for Investigation of Their Crystallographic Structures and Mechanical Properties
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