97 research outputs found

    Self-identity in modern conflicts reality: essence and concepts

    Full text link
    This article deals with the factors triggering the emergence of conflicting realities, the psychological analysis of the phenomenon and their features: «self-determination» and «professional self-determination»В статье раскрывается факторы инициирующие возникновение конфликтующих реальностей, психологический анализ феномена и их особенности: «самоопределения» и «профессионального самоопределения

    New data on the granite pedestal of the monument to Peter the Great “The Bronze Horseman” in Saint Petersburg

    Get PDF
    In order to expand and popularize knowledge about the stone decoration of Saint Petersburg, we present new data on the mineralogy and petrography of the famous Thunder-Stone, the parts of which were the basis for the monument to Peter the Great – the legendary “Bronze Horseman”. In the course of studying geological documentation of the monument's granite base, we examined the mineral composition and internal structure of granite, as well as the fragments of a pegmatite vein and veinlets found in it. 25 single-mineral samples were collected from the available micro-scaled shear fractures within the pedestal surface and studied by electron microscopy, electron probe and X-ray phase analysis. It was established that K-Na feldspar in the granite composition was represented by microcline, whereas micas were represented by annite-siderophyllite and muscovite.  Accessory minerals included monazite, xenotime, thorite, zircon, rutile, apatite, fluorite, Ti-, Nb-, Ta-bearing minerals, uranium phosphates. The presence of topaz is characteristic of pegmatites. The revealed structural and textural features of four granite boulders in the monument pedestal, as well as mineralogical and chemical composition of their rock-forming and accessory minerals, showed the similarity of this rock to Precambrian biotite-muscovite granites and topaz-containing pegmatites (stockscheiders) of the late formation phase of the Vyborg rapakivi granite massif. The research results are considered as the basis for further geological and mineralogical study of the Thunder-Stone origin and determining the place of its separation from the primary source

    Thermodynamic aspects of materials' hardness: prediction of novel superhard high-pressure phases

    Full text link
    In the present work we have proposed the method that allows one to easily estimate hardness and bulk modulus of known or hypothetical solid phases from the data on Gibbs energy of atomization of the elements and corresponding covalent radii. It has been shown that hardness and bulk moduli of compounds strongly correlate with their thermodynamic and structural properties. The proposed method may be used for a large number of compounds with various types of chemical bonding and structures; moreover, the temperature dependence of hardness may be calculated, that has been performed for diamond and cubic boron nitride. The correctness of this approach has been shown for the recently synthesized superhard diamond-like BC5. It has been predicted that the hypothetical forms of B2O3, diamond-like boron, BCx and COx, which could be synthesized at high pressures and temperatures, should have extreme hardness

    Digital receivers for low-frequency radio telescopes UTR-2, URAN, GURT

    Full text link
    This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. Since 1998, digital receivers performing on-the-fly dynamic spectrum calculations or waveform data recording without data loss have been used at the UTR-2 radio telescope, the URAN VLBI system, and the GURT new generation radio telescope. Here we detail these receivers developed for operation in the strong interference environment that prevails in the decameter wavelength range. Data collected with these receivers allowed us to discover numerous radio astronomical objects and phenomena at low frequencies, a summary of which is also presented.Comment: 24 pages, 15 figure

    Клинические особенности развития и прогрессирования первичной открытоугольной глаукомы у пациентов с отягощенным семейным анамнезом

    Get PDF
    PURPOSE. To identify clinical and epidemiological features of the course of primary open-angle glaucoma (POAG) in patients with a verified family history of the disease.METHODS. The study protocol included data from 103 people (103 eyes), among them 37 (35.9%) men and 66 (64.1%) women. Group 1 (44 people, 44 eyes) included patients with sporadic glaucoma. Group 2 consisted of patients with a hereditary form of the disease (41 people, 41 eyes). Healthy individuals (18 people, 18 eyes) comprised the control group. Mean age of all patients at the time of final examination was 60.6 (56.0; 66.3) years. In all cases, the diagnosis was established in accordance with the system of differential diagnosis of diseases. Examination was always carried out in person and included routine and specialized study methods (static automated perimetry, optical coherence tomography, examination of the thickness of the cornea in the central optical zone).RESULTS. The mean age of patients with a family history at the time of POAG diagnosis was 59.8 (53.9; 63.1) years, in patients with sporadic glaucoma — 63.85 (58.5; 67.9) years. Therefore, POAG in the group with a family history was diagnosed 4.05 years earlier. No significant differences in the structural and functional characteristics of the visual analyzer were established. A greater number of patients with the sporadic form of the disease undergo glaucoma surgery (47.7% and 34.1%, respectively) in comparable disease duration.CONCLUSION. In people with a family history of glaucoma, preventive screening should be carried out at an earlier age than the average in the population.ЦЕЛЬ. Определение клинико-эпидемиологических особенностей развития прогрессирования первичной открытоугольной глаукомы (ПОУГ) у пациентов с верифицированным семейным анамнезом.МЕТОДЫ. В протокол исследования были включены данные 103 человек (103 глаза), в числе которых было 37 (35,9%) мужчин и 66 (64,1%) женщин. В группу 1 (44 человека, 44 глаза) вошли пациенты со спорадической глаукомой. Пациенты с наследственно-отягощенной формой заболевания (41 человек, 41 глаз) составили группу 2.Здоровые лица (18 человек, 18 глаз) составили контрольную группу. Средний возраст всех пациентов на момент проведения финального обследования составил 60,6 (56,0; 66,3) лет. Во всех случаях диагноз был установлен в соответствии с системой дифференциальной диагн стики заболеваний. Обследование включало рутинные и специализированные методы исследования (статическая автоматизированная периметрия, оптическая когерентная томография, исследование толщины роговицы в центральной оптической зоне), и проводилось в очном формате.РЕЗУЛЬТАТЫ. Средний возраст пациентов с отягощенным семейным анамнезом на момент диагностирования ПОУГ составил 59,8 (53,9; 63,1) года, у пациентов со спорадической глаукомой — 63,85 (58,5; 67,9) года. Таким образом, ПОУГ в группе с наследственной отягощенностью была диагностирована на 4,05 года раньше. Достоверной разницы структурно-функциональных характеристик зрительного анализатора установлено не было. Большее число пациентов со спорадической формой заболевания оперируются по поводу заболевания (47,7% и 34,1% соответственно) на протяжении сопоставимого по срокам анамнеза заболевания.ЗАКЛЮЧЕНИЕ. Профилактические осмотры населения с целью выявления глаукомы у людей с наследственной отягощенностью по данному заболеванию, должны проводиться в более раннем возрасте, чем в среднем в популяции

    Preschool Education in the Rural Areas of Ukraine: Problems and Solution Approach Дошкольное образование в сельской местности Украины: проблемы и пути преодоления

    No full text
    The article is dedicated to the study of the condition of pre-school education in the rural areas of Ukraine and defining problems of its development. It gives the statistical analysis of the data from State Statistics Committee of Ukraine, calculates the indexes of development, makes structural analysis and reveals the main tendencies of development of pre-school education in the rural areas of Ukraine. Based on results of mentioned analysis the desirable directions of its development were defined.<br>Статья посвящена исследованию состояния дошкольного образования в сельской местности Украины и определению проблем ее развития. Проведен статистический анализ данных Государственного комитета статистики, рассчитаны показатели развития, проведено структурный анализ и выявлены основные тенденции развития дошкольного образования в сельской местности Украины. По результатам указанного анализа определены желаемые направления ее развития

    High Education in Rural Districts of Ukraine: Problems and Solutions Среднее образование в сельской местности Украины: проблемы и пути преодоления

    No full text
    The article is devoted to the study of the state of high education in rural districts of Ukraine and identification of problems of its development. It provides a statistical analysis of the data of State Statistics Committee, calculates indicators of development, conducts a structural analysis and reveals main tendencies of development of high education in rural districts of Ukraine. Results of the analysis are used for determining desirable directions of its development.Статья посвящена исследованию состояния среднего образования в сельской местности Украины и определению проблем ее развития. Проведен статистический анализ данных Государственного комитета статистики, рассчитаны показатели развития, проведен структурный анализ и выявлены основные тенденции развития среднего образования в сельской местности Украины. По результатам указанного анализа определены желаемые направления ее развития

    Healthcare in Rural Districts: State, Problems, Prospects of Development Сфера здравоохранения в селе: состояние, проблемы, перспективы развития

    No full text
    The article is devoted to the study of the state of the healthcare in rural districts of Ukraine and identification of the problems of its development. It conducts a statistical analysis of data of the State Committee of Statistics, calculates indicators of development, conducts a structural analysis and reveals main tendencies of development of healthcare in rural districts of Ukraine. It identifies desirable directions of its development on the basis of results of the conducted analysis.Статья посвящена исследованию состояния сферы здравоохранения в сельской местности Украины и определению проблем ее развития. Проведен статистический анализ данных Государственного комитета статистики, рассчитаны показатели развития, проведен структурный анализ и выявлены основные тенденции развития сферы здравоохранения в сельской местности Украины. По результатам указанного анализа определены желаемые направления ее развития

    Sphere of Culture in Rural Districts: State, Problems, Ways of Overcoming Сфера культуры в селе: состояние, проблемы, пути преодоления

    No full text
    The article studies the state of the sphere of culture in rural districts of Ukraine and identifies problems of its development. It conducts a statistical analysis of data of the State Statistics Committee, calculates development indicators, conducts a structural analysis and reveals main tendencies of development of the sphere of culture in rural districts of Ukraine. Results of this analysis are used for determining desirable directions of its development.Статья посвящена исследованию состояния сферы культуры в сельской местности Украины и определению проблем ее развития. Проведен статистический анализ данных Государственного комитета статистики, рассчитаны показатели развития, проведен структурный анализ и выявлены основные тенденции развития сферы культуры в сельской местности Украины. По результатам указанного анализа определены желаемые направления ее развития
    corecore