Heuristic environment as condition of art criticism competence development for future teachers

Essential factor of professionally significant competences development of future art direction teachers is the educational environment as which it is necessary to understand the integrity of pedagogical conditions, interactions, processes, components of pedagogical process which is specially organized for achievement of the educational purposes. Results of a theoretical research which purpose was studying characteristics of the heuristic environment as conditions of development of competences of future art direction teachers are presented in article. The main intrinsic characteristic of the heuristic educational environment is the following: recognition of value of creative activity of subjects of educational process; implementation of stimulation, support and encouragement of creative activity of students; granting opportunities for inclusion in creative activity. The empirical research was directed to studying influence of specially organized heuristic educational environment on development of art criticism competence of future art direction teachers. Testing, observation, method of expert evaluations of results of creative activity were used by us for realization of a pedagogical experiment. The conducted research allowed to reveal that specially organized heuristic environment promotes high-quality development of art criticism competence which is shown in the following: future art direction teachers acquire culturological and art criticism contents at the levels above an average and high; barriers to transition to creative activity in the field of art criticism are broken; personalization of development of art criticism competence is carried out. Keywords: educational environment, heuristics, heuristic environment, art criticism competenc

The possibilities of an educational terrencure in the education of a health-saving type of personality

The percentage of young people with deviations in the state of health is growing every year, so the preservation and promotion of health remains an urgent problem in our time. The purpose of this study is using an educational terrencure with elements of tourism in physical education classes for students of secondary vocational education as a means of increasing motivation to maintain physical activity. The work carried out the diagnostics of the motor-activity motive of students of secondary vocational education (n = 66) for physical culture lessons. The results of the study showed a positive trend in the development of this motive for classes. the number of students with a high level of need for movement increased by 9 %.С каждым годом число молодых людей, имеющих отклонения в состоянии здоровья, увеличивается, поэтому сохранение и укрепление здоровья остается актуальной проблемой современности. Целью данного исследования является оценка эффективности применения образовательного терренкура на занятиях физической культурой для студентов среднего профессионального образования в качестве средства повышения мотивации к поддержанию двигательной активности. Проведена диагностика двигательно-деятельностного мотива у студентов (n = 66), побуждающего их к занятиям физической культурой. Результаты исследования показали положительную динамику развития данного мотива: количество студентов с высоким уровнем потребности к движению увеличилось на 9 %

CONTINUITY OF STAGES OF EDUCATION IN THE EDUCATION OF VALUE ATTITUDE TO THE PRESERVATION OF HEALTH OF BACHELORS OF PEDAGOGICAL EDUCATION

The article presents the results of a study of the formation of the OPK-6 bachelors of Pedagogical education, which is considered by the authors as a criterion for the readiness of graduate students to lead a healthy lifestyle. As a result of the conducted research, the problem is revealed that the current pedagogical system for the formation of students ' readiness to lead a healthy lifestyle is not sufficiently effectiveВ статье представлены результаты исследования сформированности ОПК-6 бакалавров педагогического образования, которая рассматривается авторами как критерий готовности студентов выпускного курса к ведению здорового образа жизни. В результате проведенного исследования выявляется проблема, что действующая в настоящее время педагогическая система по формированию готовности студентов вести здоровый образ жизни, является недостаточно эффективной

Photoinduced dynamics in ferroelectric semiconductor Sn2P2S6

This work was partly supported by the Russian Ministry of Science and Higher Education (grant 3.7500.2017/9.10) and Russian Foundation of Basic Research (grant 18-32-20047). The studies were performed using the equipment of the Joint Center for Collective Use RTU MIREA

Red fluorescent genetically encoded indicator for intracellular hydrogen peroxide

Reactive oxygen species (ROS) are conserved regulators of numerous cellular functions, and overproduction of ROS is a hallmark of various pathological processes. Genetically encoded fluorescent probes are unique tools to study ROS production in living systems of different scale and complexity. However, the currently available recombinant redox sensors have green emission, which overlaps with the spectra of many other probes. Expanding the spectral range of recombinant in vivo ROS probes would enable multiparametric in vivo ROS detection. Here we present the first genetically encoded red fluorescent sensor for hydrogen peroxide detection, HyPerRed. The performance of this sensor is similar to its green analogues. We demonstrate the utility of the sensor by tracing low concentrations of H2O2 produced in the cytoplasm of cultured cells upon growth factor stimulation. Moreover, using HyPerRed we detect local and transient H2O2 production in the mitochondrial matrix upon inhibition of the endoplasmic reticulum Ca(2+) uptake

Influence of hyperinsulinemic – hypoglycemic clamp on induced platelet aggregation, activity of physiological anticoagulants and von Willebrand factor in patients with type I diabetes

Background. Intensive glycaemic control in patients with type 1 diabetes may lead to hypoglycaemia and thus increase the risk of cardiovascular and cerebrovascular events. Platelet activation and/or decreased activity of physiological anticoagulants during hypoglycaemia may play a role in the development of cardiovascular or cerebrovascular complications. Aims. To investigate induced platelet activity, the activity of physiological anticoagulants, and the von Wil-lebrand factor in patients with type 1 diabetes with the hyperinsulinaemichypoglycaemic clamp. Materials and methods. We examined 11 patients with type 1 diabetes without macro- and micro-vascular complications (6 males, 5 females, mean age 23.7 5.6 years, A1C 9.7 2.3%). Induced platelet aggregation, physiological anticoagulants (Protein S, Protein C, AT III) and the von Willebrand factor were studied at hyperglycaemic, euglycaemic, and hypoglycaemic stages during use of a hyperinsulinaemic (1 mU/kg/min) hypoglycaemic clamp. Results. Platelet aggregation to all agonists increased significantly during the hypoglycaemic stage, compared with the euglycaemic or hyperglycaemic stages. There was no difference in platelet aggregation between the euglycaemic and hyperglycaemic stages. Platelet aggregation to all agonists increased during the hypoglycaemic stage compared with the hyperglycaemic period: thrombin23.9%, ADP30.6%, arachidonic acid30.9%, collagen69.4% and ristocetin70.8%. During hypoglycaemia aggregation to ADP, arachidonic acid and collagen remained within normal limits (upper quartile); aggregation to thrombin was significantly above normal limits and aggregation to ristocetin remained significantly below lower limits. Protein S activity was significantly increased during hypoglycaemia compared with euglycaemia (p = 0.046) and hyperglycaemia (p = 0.046). Antithrombin-III activity decreased significantly at the euglycaemic and hypoglycaemic stages, compared with the hyperglycaemic period, but still remained significantly elevated above the upper threshold. Protein C and vWf activity did not change significantly. Conclusions. In patients with type 1 diabetes platelet aggregation and protein S activity increases significantly at the hypoglycaemic stage of the hyperinsulinaemichypoglycaemic clamp. Platelet activation is directly caused by hypoglycaemia and not by decreasing glucose levels. Increased protein S activity is a compensatory response to platelet activation

Ultrafast optical generation of coherent phonons in CdTe1-xSex quantum dots

We report on the impulsive generation of coherent optical phonons in CdTe0.68Se0.32 nanocrystallites embedded in a glass matrix. Pump probe experiments using femtosecond laser pulses were performed by tuning the laser central energy to resonate with the absorption edge of the nanocrystals. We identify two longitudinal optical phonons, one longitudinal acoustic phonon and a fourth mode of a mixed longitudinal-transverse nature. The amplitude of the optical phonons as a function of the laser central energy exhibits a resonance that is well described by a model based on impulsive stimulated Raman scattering. The phases of the coherent phonons reveal coupling between different modes. At low power density excitations, the frequency of the optical coherent phonons deviates from values obtained from spontaneous Raman scattering. This behavior is ascribed to the presence of electronic impurity states which modify the nanocrystal dielectric function and, thereby, the frequency of the infrared-active phonons

DC-electric-field-induced and low-frequency electromodulation second-harmonic generation spectroscopy of Si(001)-SiO2_2 interfaces

The mechanism of DC-Electric-Field-Induced Second-Harmonic (EFISH) generation at weakly nonlinear buried Si(001)-SiO$_2$ interfaces is studied experimentally in planar Si(001)-SiO$_2$-Cr MOS structures by optical second-harmonic generation (SHG) spectroscopy with a tunable Ti:sapphire femtosecond laser. The spectral dependence of the EFISH contribution near the direct two-photon $E_1$ transition of silicon is extracted. A systematic phenomenological model of the EFISH phenomenon, including a detailed description of the space charge region (SCR) at the semiconductor-dielectric interface in accumulation, depletion, and inversion regimes, has been developed. The influence of surface quantization effects, interface states, charge traps in the oxide layer, doping concentration and oxide thickness on nonlocal screening of the DC-electric field and on breaking of inversion symmetry in the SCR is considered. The model describes EFISH generation in the SCR using a Green function formalism which takes into account all retardation and absorption effects of the fundamental and second harmonic (SH) waves, optical interference between field-dependent and field-independent contributions to the SH field and multiple reflection interference in the SiO$_2$ layer. Good agreement between the phenomenological model and our recent and new EFISH spectroscopic results is demonstrated. Finally, low-frequency electromodulated EFISH is demonstrated as a useful differential spectroscopic technique for studies of the Si-SiO$_2$ interface in silicon-based MOS structures.Comment: 31 pages, 14 figures, 1 table, figures are also available at http://kali.ilc.msu.su/articles/50/efish.ht

Measurement of Dijet Angular Distributions at CDF

We have used 106 pb^-1 of data collected in proton-antiproton collisions at sqrt(s)=1.8 TeV by the Collider Detector at Fermilab to measure jet angular distributions in events with two jets in the final state. The angular distributions agree with next to leading order (NLO) predictions of Quantum Chromodynamics (QCD) in all dijet invariant mass regions. The data exclude at 95% confidence level (CL) a model of quark substructure in which only up and down quarks are composite and the contact interaction scale is Lambda_ud(+) < 1.6 TeV or Lambda_ud(-) < 1.4 TeV. For a model in which all quarks are composite the excluded regions are Lambda(+) < 1.8 TeV and Lambda(-) < 1. 6 TeV.Comment: 16 pages, 2 figures, 2 tables, LaTex, using epsf.sty. Submitted to Physical Review Letters on September 17, 1996. Postscript file of full paper available at http://www-cdf.fnal.gov/physics/pub96/cdf3773_dijet_angle_prl.p

Search for charged Higgs decays of the top quark using hadronic tau decays

We present the result of a search for charged Higgs decays of the top quark, produced in $p\bar{p}$ collisions at $\surd s =$ 1.8 TeV. When the charged Higgs is heavy and decays to a tau lepton, which subsequently decays hadronically, the resulting events have a unique signature: large missing transverse energy and the low-charged-multiplicity tau. Data collected in the period 1992-1993 at the Collider Detector at Fermilab, corresponding to 18.7$\pm$0.7~pb$^{-1}$, exclude new regions of combined top quark and charged Higgs mass, in extensions to the standard model with two Higgs doublets.Comment: uuencoded, gzipped tar file of LaTeX and 6 Postscript figures; 11 pp; submitted to Phys. Rev.