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

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

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

PLASTID TRNL INTRON VARIABILITY IN FABOIDEAE SPECIES (FABACEAE)

The intron located between the first and second nucleotide of the leucine tRNA anticodon is the only representative of group I introns in higher plants. In this paper, for the first time the intron sequence of the plastid trnL gene is described in 16 legume species, and putative secondary structures of the entire intron and some of its functional domains are reconstructed. It has been found that genera of the Fabaceae family, as well as species within a single genus, are highly diverse in this sequence. Single nucleotide polymorphisms have been found in sequences of the catalytic center, believed to be highly conserved