87 research outputs found
Formation of singularities on the surface of a liquid metal in a strong electric field
The nonlinear dynamics of the free surface of an ideal conducting liquid in a
strong external electric field is studied. It is establish that the equations
of motion for such a liquid can be solved in the approximation in which the
surface deviates from a plane by small angles. This makes it possible to show
that on an initially smooth surface for almost any initial conditions points
with an infinite curvature corresponding to branch points of the root type can
form in a finite time.Comment: 14 page
Piezomagnetism and Stress Induced Paramagnetic Meissner Effect in Mechanically Loaded High-T_c Granular Superconductors
Two novel phenomena in a weakly coupled granular superconductor under an
applied stress are predicted which are based on recently suggested piezophase
effect (a macroscopic quantum analog of the piezoelectric effect) in
mechanically loaded grain boundary Josephson junctions. Namely, we consider the
existence of stress induced paramagnetic moment in zero applied magnetic field
(piezomagnetism) and its influence on a low-field magnetization (leading to a
mechanically induced paramagnetic Meissner effect). The conditions under which
these two effects can be experimentally measured in high-T_$ granular
superconductors are discussed.Comment: 4 pages (REVTEX, epsf.sty), 2 PS figure
I surger to become I want? Investigation of factors of election of specialty
Northern state medical university, Arkhangelsk, Russian Federation The article presents the results of studying the factors of choosing a surgical specialty for senior students of medical schools (Arkhangelsk, Yekaterinburg, Voronezh). The students estimate the resources and capabilities of the university for the training of future surgeons.В статье представлены результаты изучения факторов выбора хирургической специальности студентами старших курсов медицинских вузов (Архангельск, Екатеринбург, Воронеж). Приведена оценка студентами ресурсов и возможностей вуза для подготовки будущих хирургов
On Field Induced Diaelastic Effect in a Small Josephson Contact
An analog of the diaelastic effect is predicted to occur in a small Josephson
contact with Josephson vortices manifesting itself as magnetic field induced
softening of the contact shear modulus C(T,H). In addition to Fraunhofer type
field oscillations, C(T,H) is found to exhibit pronounced flux driven
temperature oscillations near T_C
Innovative pedagogical forms of medical education of students of a medical university: the experience of the department of psychology and pedagogy
An experiment of the Department of Psychology and Pedagogy of Ural State Medical University on realization of innovative pedagogical forms of education of students of a medical school is exposed in this article. Such innovative pedagogical forms as story-role modelling of situations, art-therapeutic classes, mediation techniques of conflict management and project activities are presented and described. These pedagogical forms are relevant in the conditions of medical education and are focused on formation of common cultural and professional competences.В статье показан опыт кафедры психологии и педагогики УГМУ по реализации инновационных педагогических форм обучения студентов медицинского вуза. Представлено краткое описание таких форм практических занятий как сюжетно-ролевое моделирование ситуаций, арт-терапевтические занятия, медиативные формы управления конфликтами, проектная деятельность. Эти педагогические формы доказали эффективность при реализации концепции практико-ориентированного медицинского образования и нацелены на формирование как общекультурных, так и общепрофессиональных компетенций будущих медицинских работников
Point contact spectroscopy of the electron-doped cuprate superconductor Pr{2-x}Ce{x}CuO4: The dependence of conductance-voltage spectra on cerium doping, barrier strength and magnetic field
We present conductance-voltage (G-V) data for point contact junctions between
a normal metal and the electron doped cuprate superconductor Pr{2-x}Ce{x}CuO4
(PCCO). We observe a zero bias conductance peak (ZBCP) for the under-doped
composition of this cuprate (x=0.13) which is consistent with d-wave pairing
symmetry. For optimally-doped (x=0.15) and over-doped (x=0.17) PCCO, we find
that the G-V characteristics indicate the presence of an order parameter
without nodes. We investigate this further by obtaining point contact
spectroscopy data for different barrier strengths and as a function of magnetic
field.Comment: 13 pages, 9 figure
Real-time observation of dissipative soliton formation in nonlinear polarization rotation mode-locked fibre lasers
Formation of coherent structures and patterns from unstable uniform state or noise is a fundamental physical phenomenon that occurs in various areas of science ranging from biology to astrophysics. Understanding of the underlying mechanisms of such processes can both improve our general interdisciplinary knowledge about complex nonlinear systems and lead to new practical engineering techniques. Modern optics with its high precision measurements offers excellent test-beds for studying complex nonlinear dynamics, though capturing transient rapid formation of optical solitons is technically challenging. Here we unveil the build-up of dissipative soliton in mode-locked fibre lasers using dispersive Fourier transform to measure spectral dynamics and employing autocorrelation analysis to investigate temporal evolution. Numerical simulations corroborate experimental observations, and indicate an underlying universality in the pulse formation. Statistical analysis identifies correlations and dependencies during the build-up phase. Our study may open up possibilities for real-time observation of various nonlinear structures in photonic systems
Assessment of practical skills in primary accreditation of the specialist on the methody of «simulated patient»: the results of the piloting station «history in the primary outpatient medical visit”
The description and results of realization of the pilot project within the second stage of primary accreditation of specialists in 2017 (specialty «Medical job») are briefly presented. The pilot project’s goal is to assess the real opportunities of realization examination of the effective communicative skills to with patients during the collection of complaints and anamnesis on a primary outpatient medical appointment. The pilot station was tested in two universities: the First Moscow State Medical University and the Urals State Medical University, Yekaterinburg.Кратко представлены описание и результаты реализации пилотного проекта в рамках второго этапа первичной аккредитации специалистов в 2017 году (специальность «Лечебное дело»). Цель пилота — оценка возможностей реализации экзамена по владению практическими навыками эффективного общения с пациентами при сборе жалоб и анамнеза на первичном амбулаторном врачебном приеме. Пилотная станция проходила апробацию в двух вузах: Первом Московском государственном медицинском университете им. И.М. Сеченова и Уральском государственном медицинском университете, г. Екатеринбург
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