Components Influence On Dielectric Properties Of Ferroelectric Composite Materials

The dielectric properties of ferroelectric composite (NH4HSO4)x/(PbTiO3)1-x is studied for x ranging from 0,00 to 0,50. Measurements of permittivity were performed by heating-cooling mode temperature range from 130 K to 380 K. The value of the temperature interval of existence of the ferroelectric phase increases by ~5 degrees and independent at the volume fraction of particulate inclusions in composites. It is shown that the inclusion of PbTiO3 particles gives rise to hysteresis upper temperature phase transition, which may indicate a change in the type of phase transition of the second order on the first-order phase transition

Risks of Educational Inclusion: The Experience of Regional Studies in Tyumen State University

The paper presents the results of sociological research in the universities of the Tyumen Province, Russia (2081 questionnaires from 9 state institutions of higher education, 2016, April). In the paper, we consider only one aspect of inclusion, namely, joint training of healthy students and students with disabilities. The aim of the study is to assess the risks of inclusive education and its risk factors. Inclusive education is interpreted as 1) a social value, 2) an alternative to social exclusion 3) a resource for development, and 4) an educational innovation with risk potential. The authors developed the concept of «risk» and «risk-factor» for inclusive education, offering their classification. The responses is structured and grouped into three risks mega-groups: 1) general social risks, 2) institutional and group risks, and 3) risks for education actors. These include the risks of falling quality of general, tertiary and vocational education, the risks of social dependency, organizational risks, threat of simulation inclusion and the formal inclusion, personal and professional risks of students, teachers, parents and administrators. Insufficient level of inclusive educational environments in institutions of general, vocational and higher education, lack of skills and competences of teachers for inclusive education, the deficit tolerant attitudes towards persons with disabilities in society and school class are all identified as risk factors. The research leads to conclusions about the need for a conscious administrative influence on the factors to overcome their negative consequences for the success of inclusion. This work was supported by grant 543873-TEMPUS-1-2013-1-DE-TEMPUS-JPCR

The Gender Dimension of the Inclusion: The Case of the Western Siberian Universities

The paper focuses on the attitude of university staff towards students with disabilities and on the readiness for inclusive higher education in members of the academic staff. It is stressed that one of the main tasks of the resource and training centers network is to help overcome such powerful barriers as social stereotypes and incompetence in inclusive education and to assist university teachers in establishing contacts and interaction with students with disabilities. The paper presents a study that involved 2181 university teachers from 10 universities of the Tyumen region. The study had two objectives: first, to explore the attitude of the academic staff of the universities to students with disabilities and the former’s readiness for inclusive education; secondly, to reveal gender differences in relation to inclusion. The main outcomes of the study are as follows. Women working in higher education are more positive towards inclusive education and its prospects, more tolerant and sympathetic to persons with disabilities. They are more focused on active inclusive behavior, on acquiring new knowledge and skills, and on rendering extensive support to students with disabilities. They value their own skills and competencies in inclusive teaching and collaboration highly enough. The paper concludes that women working at the universities of the Tyumen regions are an important resource for achieving the goals of resource training centers in the field of inclusive higher education

THE FEATURES OF SPACE COMPONENTS OF THE SECOND ORDER OF BRAGG’S DIFFRACTION I N INTERMEDIATE MODE WITH LIGHT-ULTRASONIC WAVE INTERACTION UNDER BRAGG’S DOUBLE ANGLE

Исследуются селективные свойства пространственных составляющих второго порядка при взаимодействии света и звука под двойным углом Брэгга в промежуточном режиме дифракции. Значения дифракционной эффективности определялись с помощью численного решения системы связанных дифференциальных уравнений Рамана-Ната методом непрерывных дробей. Приведены результаты вычислений дифракционной эффективности составляющих первого и второго порядков от частоты ультразвука при различных значениях волнового параметра.Досліджуються селективні властивості просторових складових другого порядку при взаємодії світла і звуку під подвійним кутом Брегга в проміжному режимі дифракції. Значення дифракційної ефективності визначалися за допомогою числового розв’язання системи зв’язаних диференційних рівнянь Рамана-Ната методом неперервних дробів. Приведені результати обчислення дифракційної ефективності складових першого та другого порядків від частоти ультразвуку при різних значення хвилевого параметру.The article treats selective qualities of the second order space components with light-sound interaction under Bragg’s double angle in intermediate diffraction. The value of diffraction efficiency is estimated by mathematical calculation of the system of connected differential Raman-Nath equations using the method of continued fractions. There are given the results of the calculations of the diffraction efficiency for the components of the first and second orders dependent on ultrasonic frequency under the different values of wave parameter

To the question about measuring of speed of moving of ionosphere indignations by the method of non-coherent dispersion of radio waves with application of cross-correlation method

В статье проанализированы возможности измерения скорости перемещения искусственных возмущений ионосферы методом некогерентного рассеяния радиоволн с применением корреляционного способа измерения скорости дрейфа ионосферной плазмы. Обосновано, что измерение скорости дрейфа ионосферной плазмы в рассматриваемом случае сводится к вычислению отношения мнимой части автокорреляционной функции тепловых флуктуаций электронной концентрации атмосферы к ее реальной части. Предложено устройство, реализующее указанную операцию и проанализирована его работоспособность.У статті проаналізовані можливості виміру швидкості переміщення штучних обурень іоносфери методом некогерентного розсіяння радіохвиль із застосуванням кореляційного способу виміру швидкості дрейфу іоносферної плазми. Обгрунтовано, що вимір швидкості дрейфу іоносферної плазми в даному випадку зводиться до обчислення відношення уявної частини автокореляційної функції теплових флуктуацій електронної концентрації атмосфери до її реальної частини. Запропоновано пристрій, що реалізовує цю операцію та проаналізовано його працездатність.In the article possibilities of measuring of speed of moving of artificial indignations of ionosphere are analysed by the method of non-coherent dispersion of radio waves with the use of cross-correlation method of measuring of speed of drift of ionosphere plasma. It is grounded, that measuring of speed of drift of ionosphere plasma in examined case is taken to the calculation of relation of imaginary part of autocorrelation function of thermal fluctuations of electronic concentration of atmosphere to its real part. A device, realizing the indicated operation and his capacity is analysed, is offered