621 research outputs found
Remembering Volodymyr Vasilyovich Sharko
No full textWe lost Volodymyr Vasilyovich Sharko who passed away unexpectedly at theage of 65 on October 07, 2014 in Kiev. V. Sharko was the Deputy Director onScientic Works at the Institute of Mathematics and a corresponding memberof the National Academy of Sciences of Ukraine
Functions on manifolds
No full textThis monograph covers in a unified manner new results on smooth functions on manifolds. A major topic is Morse and Bott functions with a minimal number of singularities on manifolds of dimension greater than five. Sharko computes obstructions to deformation of one Morse function into another on a simply connected manifold. In addition, a method is developed for constructing minimal chain complexes and homotopical systems in the sense of Whitehead. This leads to conditions under which Morse functions on non-simply-connected manifolds exist. Sharko also describes new homotopical invariants of manifolds, which are used to substantially improve the Morse inequalities. The conditions guaranteeing the existence of minimal round Morse functions are discussed
Photovoltaic module V-I and P-V characterization through instrumentation control toolkit of MATLAB
No full textThis paper describes one experimental method for determining the V-I and P-V characteristic of the photovoltaic modules. The short-circuit current (Isc), open-circuit voltage (Voc) and the filling coefficient are measured, also. Direct characteristics of V-I and P-V curves under solar irradiance are measured and graphed in real time with system proposed for this reason. It describes the development of an automated monitoring system for a solar PV plant based on the use of Instrumentation Control Toolkit of MatLab Software. PV modules still have relatively low conversion efficiency; therefore, determining and controlling maximum power point tracking (MPPT) for the solar array is essential in a PV system
INVOLVING STUDENTS IN DESTINING AND DEVELOPING OF ELECTRONIC EDUCATIONAL ENVIRONMENTS IN PHYSICS AS A WAY OF THEIR PERSONALITYORIENTED TRAINING FOR METHODICAL ACTIVITY
No full textThe article reveals the possibilities of training of future teachers of Physics for methodical activity by involving them in destining and developing of electronic information&communication educational environments (EICEE) in school course in Physics.The author defines priority trends of teacher’s activity in teaching of Physics from the standpoint of the competence approach to measuring of physical education quality. They are characterized according to modern requirements. The main types of learners’ activities in Physics(theoretical material acquisition, solving various types of physical problems, making physical experiment confuction, the research carryng out) are represented in the context of the competence approach to organization of educational process. The author reveals the essence and structure of the notion “electronic information&communication educational environment” according to normative and didactic requirements. Integrated model of technology of personality-oriented training of future teachers of Physics for methodical activity is suggested. An algorithm of teacher’s and student’s actions for destining and developing of electronic information&communication educational environment as a type of teacher’s methodical activity is given. The advantages of personality-oriented technology of professional training of future teachers of Physics from the standpoint of individual, activity and competence approaches are defined.</jats:p
INVOLVING STUDENTS IN PROJECTING AND CREATING ELECTRONIC EDUCATIONAL ENVIRONMENTS IN PHYSICS AS A WAY OF THEIR PERSONALITY-ORIENTED TRAINING FOR METHODICAL ACTIVITY
No full textThe article reveals the possibilities of training future teachers of Physics for methodical activity by involving them in projecting and creating electronic information&communicationeducational environments (EICEE) in the school course in Physics.
The author defines priority directions of teacher’s activity in teaching Physics from the standpoint of the competence approach to measuring quality of physical education.They are characterized according to modern requirements. The main types of learners’ activities in Physics (theoretical material acquisition, solving various types of physical problems, making physical experiments, carrying out research)are represented in the context of the competence approach to organization of educational process.
The author reveals the essence and structure of the notion of “electronic information&communicationeducational environment”according to normative and didactic requirements.Integrated model of technology of personality-oriented training of future teachers of Physics for methodical activity is suggested. An algorithm of teacher’s and student’s actions for projecting and creating electronic information&communicationeducational environment as a type of teacher’s methodical activity is given. The advantages of personality-oriented technology of professional training of future teachers of Physics from the standpoint of individual, activity and competence approaches are defined
Enzootic ataxia and caprine arthritis/encephalitis virus infection in a New England goat herd
No full textAtaxia was diagnosed in kids from a New England goat herd. Concurrent infection with the caprine arthritis/encephalitis (CAE) virus contributed to the development of hind limb ataxia and weakness in one of the kids. Six kids from this herd had signs of hind limb ataxia and paralysis. Detailed evaluation of 2 of the affected kids revealed low liver and serum copper concentrations and spinal cord demyelination. One kid also had histologic changes in the CNS and lungs, compatible with a diagnosis of CAE. Serum copper concentration was determined in affected goat kids and their dams and was compared with serum copper concentration in clinically normal kids and their dams from the same herd. Serum copper concentration also was measured in dams and kids in a control herd that had no history of ataxia. The mean serum copper concentration in affected kids was 0.125 microgram/ml, compared with 0.45 microgram/ml in unaffected kid herdmates. Kids from the control herd had mean serum copper concentration of 0.6 microgram/ml. Mean serum copper concentration in dams of kids with neurologic signs also was low (0.25 microgram/ml), compared with that (0.5 microgram/ml) in dams of clinically normal kids of the affected herd and that (0.95 microgram/ml) in dams of kids of the control herd. Results of a serologic survey (by use of agar gel immunodiffusion) of the affected herd for CAE indicated that 69.5% of the goats were seropositive. Dietary copper intake was determined to be adequate in this goat herd; therefore, copper deficiency appeared to be conditioned by an interfering substance. However, a search for interfering substances was unrewarding.LR: 20031114; PUBM: Print; JID: 7503067; EIN: J Am Vet Med Assoc 1989 Feb 1;194(3):394; ppublis
Osobennosti biomekhaniki stopy pri diabeticheskoy artropatii Sharko
No full textЦель. Изучение биомеханики стоп при хронической стадии диабетической нейроостеоартропатии в среднем отделе. Материалы и методы. Обследованы 160 больных ДС, у 15 из них выявлена хроническая стадия АШ среднего отдела (основная группа) и у 145 пациентов без проявлений АШ, выраженных деформаций, но с наличием полинейропатии нижних конечностей (контрольная группа). Оценка тяжести нейропатии проводилась 10-гр. монофиламентом и биотезиометром на апикальной поверхности больших пальцев обеих стоп. У всех больных определялась отчётливая пульсация артерий стоп. Оценивали следующие показатели: начало и конец контакта стопы с поверхностью платформы (в % от времени контакта всей стопы), время контакта (абсолютное, миллисекунды и в % от времени контакта всей стопы); площадь контакта (см2); пиковые давления (максимальные давления) (кПа), интеграл давление-время (кПа-с); момент времени, когда сила достигает максимальной величины, и момент времени, когда давление становится максимальным; сила вычисляется как произведение давления на площадь; арочный индекс (отношение площади среднего отдела к площади всей стопы без учёта пальцев). Результаты. Анализ площади контакта показал, что площади пяточных областей и переднего отдела достоверно не различались. В то же время у больных с АШ отмечалось увеличение площади среднего отдела и уменьшение площади пальцев по сравнению с больными без артропатии. Различия во времени достижения масксимальной силы и давления в обследованных группах обусловлены характером деформаций при поражении среднего отдела. У пациентов с АШ максимальное давление определяется в большинстве случаев величиной второго пика давления. Максимальная сила и пиковое давление в среднем отделе у больных с АШ достигаются раньше по сравнению с контрольной группой. Выводы. У больных сахарным диабетом с артропатией Шарко в сравнении с пациентами с диабетической полинейропатией выявлены следующие особенности биомеханики поражённой стопы: снижение нагрузки на пятку; выраженная нагрузка на средний отдел за счет высоких давлений, увеличения времени и площади контакта стопы с поверхностью; существенное уменьшение нагрузки и времени контакта в переднем отделе; уменьшение участия пальцев в процессе переката
Mužská hnutí v postsovětském Rusku
No full textThis thesis examines the men's movement in post-Soviet Russia - the first grass-root gender-based movement of men and a social phenomenon unique for the whole post-Soviet area that emerged in Russia in 2000. The social phenomenon was studied by the method of non-participant remote ethnography, involving multi-year observation of online activity of the Russian men's community, using the theoretical framework, built on R. Connell's masculinity theory and the Russian and Western academic sources. The online texts and video narratives of the research sample were analyzed focusing on the social and economic reasons for this men's movement beginning and the evolution of their cause from anti-feminist backlash to a more progressive and gender-sensitive one over the 2000-2021 period of existence. The liberal wing of the Russian Men's Movement, the Egalitarian Men's Movement, undergoes special scrutiny to determine whether it signifies that progressive trend in the Russian masculinity transformation. The research project provides insight into the controversial views of the Russian men on feminism and the social role of women, as well as into the ways the Russian men construct, perform and contest their masculinities with all the contradictions and inconsistencies that this process may involve. Keywords:...Programme Gender StudiesProgram Genderová studiaFakulta humanitních studiíFaculty of Humanitie
Physical and physical chemical characteristics of the structure of the precursors of the destruction of metal constructions
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