57 research outputs found

    Процедура и результаты международных сличений эталона РЭМП и государственного эталона РФ

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    Описана методика процедури та висновки міжнародних двосторонніх звірень еталонів імпульсних електричних та магнітних полів України та Російської Федерації.The method of procedure and conclusions of international two-sided comparisons of standards the pulsed electrical and magnetic fields of Ukraine and Russian Federation is described

    Проект энергоблока АЭС с реактором типа ВВЭР-600

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    Объектом исследования является проект энергоблока с реактором ВВЭР-600. Цель работы – расчет реакторной установки, парогенератора, принципиальной схемы ПТУ методом энергетического баланса, конденсационной установки и регенеративного подогревателя низкого давления поверхностного типа. В процессе работы рассчитаны и спроектированы основные составляющие ядерной энергетической установки: реакторная установка, парогенератор, расчет на прочность парогенераторной установки.The object of research is the development of a power unit with VVER-600. The purpose of the work – calculation of reactor plant, steam generator schematic diagrams of the PTU method energy balance of the condensing unit and the regenerative heater low pressure surface type. In the process, designed the basic components of a nuclear power plant: reactor, steam generator, calculating the strength of steam plant. Final qualifying work is executed in a text editor Microsoft word 2010, graphs are constructed in a workbook in Microsoft Excel 2010, and the drawings made with the program Corel DRAWX5, equation editor Math CAD 15

    Increased compensatory kidney workload results in cellular damage in a short time porcine model of mixed acidemia – Is acidemia a ‘first hit’ in acute kidney injury?

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    Acute kidney injury (AKI) corrupts the outcome of about 50% of all critically ill patients. We investigated the possible contribution of the pathology acidemia on the development of AKI. Pigs were exposed to acidemia, acidemia plus hypoxemia or a normal acid-base balance in an experimental setup, which included mechanical ventilation and renal replacement therapy to facilitate biotrauma caused by extracorporeal therapies. Interestingly, extensive histomorphological changes like a tubular loss of cell barriers occurred in the kidneys after just 5 hours exposure to acidemia. The additional exposure to hypoxemia aggravated these findings. These 'early' microscopic pathologies opposed intra vitam data of kidney function. They did not mirror cellular or systemic patterns of proinflammatory molecules (like TNF-α or IL 18) nor were they detectable by new, sensitive markers of AKI like Neutrophil gelatinase-associated lipocalin. Instead, the data suggest that the increased renal proton excretion during acidemia could be an 'early' first hit in the multifactorial pathogenesis of AKI

    Разработка и проектирование устройств для мобилизации людей в аэропортах

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    Объектом исследования выступает организация обслуживания авиапассажиров в аэропортах. Цель работы: проектирование устройства для мобилизации людей в аэропортах и разработка программного обеспечения на базе ОС Android для использования авиапассажирами в качестве управления транспортным средством. В процессе исследования проводится анализ организации предполетного обслуживания авиапассажиров в аэропортах. Основные характеристики: работа состоит из введения, трёх глав, заключения, списка использованных источников и ряда приложений. В результате исследования было разработано и спроектировано инновационное устройство для мобилизации людей в аэропортах и мобильное приложение на базе операционной системы Android, позволяющее осуществлять управление транспортным средством в помещении.The object of the research is the organization of the service of air passengers at airports. Objective: to design a device for mobilizing people at airports and developing Android-based software for use by air passengers as a means of driving a vehicle. In the course of the study, an analysis of the organization of pre-flight service of air passengers at airports is carried out. Main characteristics: the work consists of an introduction, three chapters, conclusion, list of references and a number of applications. As a result of the study, an innovative device for mobilizing people at airports and a mobile application based on the Android operating system were developed and designed to control the vehicle indoors

    C-Reactive Protein Causes Blood Pressure Drop in Rabbits and Induces Intracellular Calcium Signaling

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    Systemic diseases characterized by elevated levels of C-reactive protein (CRP), such as sepsis or systemic inflammatory response syndrome, are usually associated with hardly controllable haemodynamic instability. We therefore investigated whether CRP itself influences blood pressure and heart rate. Immediately after intravenous injection of purified human CRP (3.5 mg CRP/kg body weight) into anesthetized rabbits, blood pressure dropped critically in all animals, while control animals injected with bovine serum albumin showed no response. Heart rate did not change in either group. Approaching this impact on a cellular level, we investigated the effect of CRP in cell lines expressing adrenoceptors (CHO-α1A and DU-145). CRP caused a Ca(2+)signaling being dependent on the CRP dose. After complete activation of the adrenoceptors by agonists, CRP caused additional intracellular Ca(2+)mobilization. We assume that CRP interacts with hitherto unknown structures on the surface of vital cells and thus interferes with the desensitization of adrenoceptors

    Women in Medicine: there is no Hogwarts Sorting Hat for female fellow physicians

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