124 research outputs found

    ПРОБЛЕМЫ БЕЗОПАСНОСТИ В КАСПИЙСКОМ РЕГИОНЕ В КОНТЕКСТЕ ИЗМЕНЕНИЯ ГЕОПОЛИТИЧЕСКОЙ СИТУАЦИИ

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    Article is devoted to research of geopolitical processes in Caspian region and to questions of regional security. In article is analyzed the influence on a situation in the region of the western countries. The questions connected with deliveries of hydrocarbonic resources from the countries of the Middle East are considered.Статья посвящена исследованию геополитических процессов в Каспийском регионе и вопросов региональной безопасности. Анализируется влияние на ситуацию в регионе западных стран. Рассматриваются вопросы, связанные с поставками углеводородных ресурсов из стран Ближнего Востока

    How Online Solutions Help Beat the Lockdown in Higher Education: A Central Asia Case Study

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    This chapter is aimed at summarizing the recent initiatives put in action for solving the problems in delivering the educational services in the Turin Polytechnic University in Tashkent, TTPU, after the lockdown, and the stringent measures taken by the Uzbek government in March 2020, for the pandemic explosion of the COVID-19 virus. The long-lasting connection between Politecnico di Torino, a European University, and this Central Asia Institution has been proven to be extremely effective, maximizing the benefits of TTPU in promptly offering online solutions for remote lectures, and the preparation of the technical substrate for both the exams and admission test which will be delivered after the completion of the second semester lectures. A summary of the IT tools adopted, with compact highlights of their features, as well as the qualitative feedback collected from the first courses offered with a reshaped structure suitable for online classes are thoroughly discussed in this work

    Неотложная эндовидеохирургия при острых заболеваниях органов брюшной полости

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    Summary. The basis of research included results of diagnostics and treatment by videoendoscopic interventions of 1812 patients with urgent surgical diseases of abdominal cavity and also the videolaparoscopy was done for patients with diagnostic purpose. During the carried-out researches it was established that the video laparoscopy is highly effective, safe, less traumatic way of surgical treatment. The quantity of the open laparotomies and their complications as eventration, postoperative hernias and suppurations of wounds was reduced.Key words:РЕЗЮМЕ. В основу исследования вошли результаты диагностики и лечения 1812 больных, которым были выполнены видеоэндоскопические вмешательства по поводу неотложных хирургических заболеваний брюшной полости, а также видеолапароскопия с диагностической целью. В ходе проведенных исследований установлено, что видеолапароскопия является высокоэффективным, безопасным, малотравматичным способом хирургического лечения. Сокращается количество напрасных лапаротомий и их осложнений в виде эвентраций, послеоперационных грыж и нагноений ран.Ключові слова:

    Inheritance of cleistogamy in interspecific hybridization of Gossypium barbadense L.

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    Studies of the inheritance and and variability of chasmo- and cleistogamous types of cotton flower on the base of intraspecies hybridization of Gossypium barbadense L. are an urgent genetical task, whose applications involve plant breeding and seed industry. The purpose of our study was to determine the genetic control of this trait on the base of the regularity of alternative chasmo- and cleistogamous types of flowers in intraspecific hybrids of G. barbadense species. It is of theoretical and practical significance in the development of isogenic forms, lines, and varieties with the fully closed cleistogamous type of flowers, possessing important commercial traits. A pioneering method was elaborated for determining the genetic control of chasmo- and cleistogamous types of flowers in inrtaspecific hybridization of Gossypium barbadense L., which was a continuation of our studies on interspecific cotton hybridization. Two strategies were applied to the genetic analysis of hybrids: (1) paired reciprocal hybrids F1, F2 and (2) backcrossed hybrids Fb. On the grounds of these strategies, we determined the inheritance mode of flower types in reciprocal hybrids F1, which possessed the c1cg1Cg2cg2 genotype with chasmogamous flowers without reciprocal difference. The classes segregated in F2 as follows: 1 (cg1cg1Cg2Cg2) : 2 (cg1cg1Cg2cg2) : 1 (cg1cg1cg2cg2), where cleistogamy was double recessive (This trait shows the complete dominance inheritance pattern.) Segregation into two phenotypic classes occurs in the 3:1 ratio, i.e., three plants with chasmogamous flowers per one cleistogamous. The segregation Fb is 1:1; i.e., 1 chasmogamous : 1 cleistogamous. Thus, cotton chasmogamy is inherited in F2 according to the Mendelian law in a completely dominant manner: 3:1, which is proven by the Fb cross

    Fabrication and characterization of porous mullite ceramics derived from fluoride assisted Metakaolin Al OH 3 annealing for filtration applications

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    In this work, polycrystalline mullite whiskers are synthesized by fluoride assisted method from metakaolin and several aluminum containing compounds such as amp; 947; Al OH 3, AlF3 3H2O, and amp; 945; Al2O3 corundum . The mullite formation and crystallization are assessed both in ex situ and in situ synchrotron X ray diffraction experiments under synthesis conditions. Polycrystalline mullite starts to form from metakaolin, Al OH 3, and AlF3 3H2O reactants at 680 C, whereas mullite does not form even at 1000 C when corundum is used. Porous mullite ceracmics are fabricated at sintering temperatures between 1000 and 1700 C and tested for water permeance. Scanning Electron Microscopy SEM and synchrotron X ray tomography amp; 956;CT reveal that ceramics are comprised of pore channels with an interlocked network of mullite whiskers. With competitive porosity up to 63 , compressive strength up to 20 MPa , and pure water flux up to 579 L m2 h at 1 bar , fabricated mullite ceramics are promising candidates for water filtration and purificatio

    Synthesis and characterization by experimental and theory research suitable on the CdS and CdO materials

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    In this paper, we have compared and analyzed experimental and theoretical research on A2B6 types semiconductor materials CdS and CdO. The XRD spectra of the samples were examined using an atomic force microscope and X-ray diffraction microscopy. During film deposition, the temperature of the crucible with a source (CdS) varied in the range Tsourse ≈ 800 ÷ 850°C, and the substrate temperature was maintained within the range Tp ≈ 250 ÷ 270°C. In this case, to ensure the reproducibility of the structures, a shutter was used, with the help of which the CdS deposition time was set, which ensured that the film thickness was the same from experiment to experiment

    Influence of the parameters to transition capacitance at nCdS-pSi heterostructure

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    It is important to research the dependence of the capacitance and capacitance on the parameters on the photodiodes. In this article, we aim research experimental and theoretical on the nCdSpSi heterostructure. A heavily doped n+CdS layer with a thickness of about 50 Å was created by deposition of a thin layer of indium (In) for 25-30 s on the surface of a CdS film in vacuum with a residual pressure of 10-5 Torr at a substrate temperature of 373 K, followed by annealing at 673 K in within 300s. Then, on the surface of this heavily doped n+CdS layer, a current-collecting “P”-shaped ohmic contact with an area of 3 mm2 was obtained also by the vacuum evaporation of In
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