Development of individual plans for students with disabilities as a factor in successful university education

Определяется необходимость разработки индивидуальных планов обучения студентов с ограниченными возможностями здоровья, приводится нормативная документация, обеспечивающая реализацию этих планов, обосновываются педагогические подходы, использующиеся при организации процесса обученияThe article discusses the need to develop individual plans for students with disabilities health. Presented regulatory documentation ensuring their implementation. Suggests the pedagogical approaches used in the proces

Inhomogeneous nuclear spin polarization induced by helicity-modulated optical excitation of fluorine-bound electron spins in ZnSe

Optically-induced nuclear spin polarization in a fluorine-doped ZnSe epilayer is studied by time-resolved Kerr rotation using resonant excitation of donor-bound excitons. Excitation with helicity-modulated laser pulses results in a transverse nuclear spin polarization, which is detected as a change of the Larmor precession frequency of the donor-bound electron spins. The frequency shift in dependence on the transverse magnetic field exhibits a pronounced dispersion-like shape with resonances at the fields of nuclear magnetic resonance of the constituent zinc and selenium isotopes. It is studied as a function of external parameters, particularly of constant and radio frequency external magnetic fields. The width of the resonance and its shape indicate a strong spatial inhomogeneity of the nuclear spin polarization in the vicinity of a fluorine donor. A mechanism of optically-induced nuclear spin polarization is suggested based on the concept of resonant nuclear spin cooling driven by the inhomogeneous Knight field of the donor-bound electron.Comment: 12 pages, 11 figure

Problems of attracting adult populationto implementation of the regulations of the all-russian sports complex "Ready for labor and defense"

The article deals with the problem of popularizing the GTO complex among the adult population. According to the plan for the implementation of the All-Russian sports complex “Ready for Labor and Defense”, from 2018 the standards of the Complex should be met en masse, by all categories of the population, but the question arises, why does the percentage of the adult population involved remain extremely low? The purpose of this study is to identify the main causes of insufficient participation of adults in the implementation of the standards of complex “Ready for Labor and Defense”. Based on the analysis of modern publications, statistical materials and regulatory documents, we have identified several reasons for the insufficient participation of adults in the implementation of standards.В статье рассмотрена проблема популяризации комплекса ГТО среди взрослого населения

Research teen awareness about the dangers of smoking and the reasons

This article discusses the reasons associated with the abuse of adolescent smoking. The questions of the harmful effects of tobacco on the human body components. Referent group were students of rural schoolsВ статье рассматриваются причины, связанные со злоупотреблением подростками курением. Освещены вопросы вредного воздействия компонентов табака на организм человека. Реферетной группой являлись школьники сельской школ

Psychological predictors of human hardiness formation

The relevance of the researched problem is conditioned by the growing social and psychological tension in the ever-changing post-industrial society and psychoemotional disorders affecting the human lifespan, developing on this background. The goal of the article is to disclose and analyse psychological predictors of hardiness formation, stipulating self-preservation and longevity of human. Identification of personal and reactive anxiety of young people, as well as assessment of their adaptive capacity are the leading methods in the study of this problem, allowing for complex consideration of the factors influencing the hardiness formation. The article discloses and justifies psychological indicators, serving as predictors of contemporary human hardiness, needed to overcome the difficulties of life arising in the course of personality ontogenesis. Article data may be useful for psychologists, psycho-physiologists, teachers and other professionals concerned with support and assistance to people experiencing problems in difficult situations. © 2016 Zeer et al

Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots

We have studied the Faraday rotation and ellipticity signals in ensembles of singly-charged (In,Ga)As/GaAs quantum dots by pump-probe spectroscopy. For degenerate pump and probe we observe that the Faraday rotation signal amplitude first grows with increasing the time separation between pump and probe before a decay is observed for large temporal separations. The temporal behavior of the ellipticity signal, on the other hand, is regular: its amplitude decays with the separation. By contrast, for detuned pump and probe the Faraday rotation and ellipticty signals both exhibit similar and conventional behavior. The experimental results are well described in the frame of a recently developed microscopic theory [Phys. Rev. B 80, 104436 (2009)]. The comparison between calculations and experimental data allows us to provide insight into the spectral dependence of the electron spin precession frequencies and extract the electron g-factor dependence on energy.Comment: 9 pages, 7 figure

Spin dynamics of electrons and holes in InGaAs/GaAs quantum wells at milliKelvin temperatures

The carrier spin dynamics in a n-doped (In,Ga)As/GaAs quantum well has been studied by time-resolved Faraday rotation and ellipticity techniques in the temperature range down to 430 milliKelvin. These techniques give data with very different spectral dependencies, from which nonetheless consistent information on the spin dynamics can be obtained, in agreement with theoretical predictions. The mechanisms of long-lived spin coherence generation are discussed for the cases of trion and exciton resonant excitation. We demonstrate that carrier localization leads to a saturation of spin relaxation times at 45 ns for electrons below 4.5 K and at 2 ns for holes below 2.3 K. The underlying spin relaxation mechanisms are discussed.Comment: 8 pages, 8 figure

Optical control of spin coherence in singly charged (In,Ga)As/GaAs quantum dots

Electron spin coherence has been generated optically in n-type modulation doped (In,Ga)As/GaAs quantum dots (QDs) which contain on average a single electron per dot. The coherence arises from resonant excitation of the QDs by circularly-polarized laser pulses, creating a coherent superposition of an electron and a trion state. Time dependent Faraday rotation is used to probe the spin precession of the optically oriented electrons about a transverse magnetic field. Spin coherence generation can be controlled by pulse intensity, being most efficient for (2n+1)pi-pulses.Comment: 5 pages, 4 figure