58 research outputs found
Gyroscope deviation from geodesic motion: quasiresonant oscillations on a circular orbit
General relativistic spin-orbit interaction leads to the quasiresonant
oscillation of the gyroscope mass center along the orbital normal. The beating
amplitude does not include the speed of light and equals the ratio of the
intrinsic momentum of the gyroscope to its orbital momentum. The modulation
frequency equals the angular velocity of the geodetic precession that prevents
the oscillation from resonance. The oscillation represents the precession of
the gyroscope orbital momentum. Within an acceptable time the oscillation
amplitude reaches the values that are amenable to being analyzed
experimentally. Taking into account the source oblateness decreases the beating
amplitude and increases the modulation frequency by the factor that is equal to
the ratio of the quadrupole precession velocity to the geodetic precession
velocity. The period of the quadrupole precession turns out to be a quite
sufficient time to form a measurable amplitude of the oscillation.Comment: 5 pages, LaTeX2e, 1 eps figure, to appear in J. Exp. Theor. Phy
Stress and Strain State Analysis of Defective Pipeline Portion
The paper presents computer simulation results of the pipeline having defects in a welded joint. Autodesk Inventor software is used for simulation of the stress and strain state of the pipeline. Places of the possible failure and stress concentrators are predicted on the defective portion of the pipeline
THE RELATIONSHIP BETWEEN DISRUPTED ATTACHMENT STYLES AND DEPRESSION. WHAT ELSE WILL NEED TO STUDY?
Data are presented on the study of the relationship between impaired types of attachment and the development of depression. New objects of research are outlined, representing mediator factors that have not previously been in the focus of attention of researchers, necessary to explain the process of development of a depressive disorder with a disturbed type of attachment.Представлены данные об исследованиях взаимосвязи нарушенных типов привязанности и развития депрессии. Намечены новые объекты исследования, представляющие медиаторные факторы, ранее не попадавшие в фокус внимания исследователей, необходимые для объяснения процесса развития депрессивного расстройства при нарушенном типе привязанности
Building the capacity to solve complex health challenges in Sub-Saharan Africa : CARTA’s multidisciplinary PhD training
Objectives: To develop a curriculum (Joint Advanced Seminars- JAS) that produced PhD fellows who understood that health is an outcome of multiple determinants within complex environments and that approaches from a range of disciplines is required to address health and development within the Consortium for Advanced Research Training in Africa. We sought to attract PhD fellows, supervisors and teaching faculty from a range of disciplines into the program.
Methods: Multidisciplinary teams developed the JAS curriculum. CARTA PhD fellowships were open to academics in consortium member institutions, irrespective of primary discipline, interested in doing a PhD in public and population health. Supervisors and JAS faculty were recruited from CARTA institutions. We use routine JAS evaluation data (closed and open ended questions) collected from PhD fellows at every JAS, a survey of one CARTA cohort and an external evaluation of CARTA to assess the impact of the JAS curriculum on learning.
Results: We describe our pedagogic approach arguing its centrality to an appreciation of multiple disciplines and illustrate how it promotes working in multidisciplinary ways. CARTA has attracted PhD fellows, supervisors and JAS teaching faculty from across a range of disciplines. Evaluations indicate PhD fellows have a greater appreciation of how disciplines other than their own are important to understand health and its determinants and an appreciation and capacity to employ mixed methods research.
Conclusions: In the short-term, we have been effective in promoting an understanding of multidisciplinarity resulting in fellows using methods from beyond their discipline of origin. This curriculum has international application
Multimodal Learning in Health Sciences and Medicine: Merging Technologies to Enhance Student Learning and Communication
DOES PERFORMANCE IMPROVE FOLLOWING MULTISOURCE FEEDBACK? A THEORETICAL MODEL, META-ANALYSIS, AND REVIEW OF EMPIRICAL FINDINGS
Functional approach to overcome the stereotypes of managing the innovative activities of industrial enterprises
В статье раскрываются некоторые стереотипы управления инновациями и возможные пути их преодоления. Объектом исследования выступает инновационная деятельность промышленных предприятий. Обосновывается целесообразность и перспективность использования функционального подхода – способа исследования управления инновационной деятельностью как единого процесса реализации общих и специфических управленческих функций, осуществляемого через взаимозависимые базовые функционалы инновационного бизнеса, как элементы управляемой подсистемы СУИД1 предприятия. Определяются подходы к модернизации СУИД предприятия.The article considers some of the stereotypes of innovation management and possible ways to overcome them. The object of research is the innovative activity of industrial enterprises. The expediency and prospects of using of the functional approach – a method of research of managing the innovative activities of industrial enterprises as a unified process of implementation of general and specific management functions performed by the basic functionals of the innovative business, as elements of the manageable sub-system of the system managing the innovative activities of industrial enterprises (SMIA) is explains. Approaches to the modernization of the SMIA are defined
SCIENTIFIC JOURNAL AS THE BASIS OF PROFESSIONAL COMMUNICATION: PROBLEMS OF MODERN DEVELOPMENT
An article in a scientific journal is the key element of modern scholarly communication system, in which scientific journals act as conductors of national science and researchers to the international level. Integration of Russian scientific journals into the global knowledge system and improving their competitiveness are necessary conditions for improving the competitiveness of Russian science itself.Today, we see a low quality of Russian scientific periodicals with an excessive number of journals. The highly competitive environment and the total use of bibliometric approaches in the research and assessment of science born unfair race for indicators, developing imitation science.The study aims to analyze, determine and propose solutions of topical issues of Russian scientific journals. The article is a case study of the oldest monthly scientific and production journal “Occupational Safety in Industry”. The transformation of the work of the editorial board is considered within the 2016–2019 period. We analyze the history of formation, development and the common problems of restructuring the activities of the editorial boards that have occurred in recent years.It is shown that the formalization of scientometric indicators and their impact on funding cause a sharp increase in the number of authors with multiple affiliations. In general, the use of bibliometrics in Russia has generated a number of systemic risks that threaten the development of national science.The study formulates the tasks and nearest prospects for the development of scientific journals as the basis for a changing scholarly communication system. It is necessary to develop the qualitative scientometrics with new scientometric indices and qualitative author-evaluating indicators (with more precise scientometrics, new tools will appear, including those for identifying dishonest scientists).To improve the evaluation system of Russian scientific journals, we propose: improving the generally accepted scientometric methods taking into account Russian specifics and introducing a system for assessing and monitoring the quality of Russian scientific journals, combining the use of bibliometric information and independent expert evaluation. The creation of high-quality scientometrics is possible with the use of artificial intelligence systems.The proposed steps will build a self-regulatory ecosystem on the Russian space of scholarly communication with well-functioning high-quality expertise, which will determine the future of scientific journals
Crocidura ramona sp. nov. (Insectivora, Soricidae): a new species of shrew from the central Negev Desert, Israel
Volume: 61Start Page: 93End Page: 10
Discrimination of 2n=60 Spalax leucodon cytotypes (Spalacidae, Rodentia) in Turkey by means of classical and molecular cytogenetic techniques
WOS: 000261979300007PubMed: 19096209Comparative studies among seven populations of 2n = 60 S. leucodon employing classic cytogenetics (G-bands, C-bands, AgNOR-staining), fluorochrome staining, and fluorescence in situ hybridization of telomeric and rDNA probes are reported here for the first time. The studied specimens were assigned to two cytotypes: 2n = 60W and 2n = 60R. The basic karyotype of both cytotypes consisted of eight pairs of subtelocentric and 21 pairs of acrocentric autosomes, subtelocentric X and acrocentric Y chromosomes. Both cytotypes had variable numbers of B-chromosomes (1-3) and variable numbers of autosomal arms (NFa = 74-76) caused by amplification (deletion) of heterochromatin short arms in the second pair. The short arms of subtelocentric chromosomes were comprised of heterochromatin in both cytotypes. Nucleolar organizer regions (NORs) and rDNA clusters were detected at telomeric sites of the short arms in pairs Nos. 3, 5, 6, 9, and 13 in cytotype W, and in the short arms of pair No. 6, 8, 12, 13, and 16 in cytotype R. Different locations of rDNA clusters allowed unambiguous discrimination between two S. leucodon cytotypes possessing the same 2n = 60 and similar NFa (74-76) variability. Our findings suggest a high level of chromosomal divergence, which means that it is possible to consider these cytotypes as a well-differentiated, chromosomal lineage within the leucodon group. Copyright (C) 2008 S. Karger AG, BaselResearch Authority of Haifa UniversityThis study was supported by the Research Authority of Haifa University
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