Infective safety of blood and haemostatic potential of fresh frozen plasma

Comparative analysis of leucodepletion effectiveness and influence of filtering devices (FD) «Leucosep» («Interoco»). «Leukotrap WB» (Pall), «Leukoflex» (Macopharma) over blood-clotting was carried out. The effectiveness of leucodepletion by the listed filtering devices was found satisfactory.Leukodeplicity influence on blood coagulation was estimated, and the absence of changes in indexes of blood coagulation after been filtered by “Leukosep" was defined,and changes in (fibrinogen, fibrinolytic activity, prothrombin time) their components been filtered by «Leukoflex», as well as changes in indexes of APTV and antithrombin III in components been filtered «Leukotrap WB». Aberration of haemostatic potential FFP were within physiological norm. Influence of long-term keeping (240 days) fresh frozen plasma, been filtered by «Leukotrap WB» at a moderate law level of temperature (-41o C).At the process of keeping haemostatic potential FFP was saved. The most considerable changes were characterized for APTB (29,9%) and for time of lyses euglobulinum bundle.Изучали эффективность лейкодеплеции фильтрующими устройствами (ФУ) «Лейкосеп» («Интероко»), «Leukotrap WB» (Pall), «Leukoflex» (Macopharma), выявили удовлетворительную эффективность лейкодеплеции перечисленными фильтрующими устройствами. Оценивали влияние лейкодеплеции на свертывание крови, выявили отсутствие изменений показателей свертывания после фильтрации ФУ «Лейкосеп» и изменение их (фибриногена, фибринолитической активности, протромбинового времени) в компонентах, фильтрованных «Leukoflex», а также изменение показателей АПТВ и антитромбина III в компонентах, фильтрованных «Leukotrap WB». Отклонения гемостатического потенциала СЗП находились в пределах физиологической нормы. Определяли влияние долгосрочного хранения (240 дней) свежезамороженной плазмы, фильтрованной «Leukotrap WB» при умеренно низкой температуре (-41° С). Выявили сохранение гемостатического потенциала СЗП в процессе хранения. Наибольшие изменения были характерны для АПТВ (29,9%) и времени лизиса эуглобулинового сгустка (31,5%)

Optimal profile of input contacts of the attenuator plate on the basis of distributed resistive structures

Calculations and experimental results prove that the greatest values of the potential gradients and dissipated power are observed in the neighborhood of the input contact which reduces the level of the maximum allowable dissipated power. Below the methodology is suggested which allows determining the optimal profile of the input contacts and providing greater than double increase in the power dissipated by the plate

Objective reference points for compensation of teachers

The authors give an assessment of remuneration of higher school teachers and other socially significant professions. The new approach for remuneration of labor of these categories of theworkers is offered providing reproduction and accumulation of the human capital

Absorbing elements of chip-attenuators for the surface mounting

A topology of absorbing elements of chip-attenuators covering a wide range of attenuations has been proposed and the specified elements built on the basis of distributed resistance structures and designed for the surface mounting were calculated. The results of calculations and experimental investigations using practical samples of chip-attenuators and their full-scale models were presented

Calculation of U-shaped absorbing elements of chip-attenuators for surface mounting

A topology of absorbing elements of chip-attenuators of medium and large attenuations built on the basis of distributed resistive structures and intended for surface mounting is suggested and its calculation is performed. The results of calculations and experimental research on real samples of chip-attenuators and their large-scale models are provided

Definition of function of squares amount of angular part of film element

By means of exact conformal mapping method we have defined character of dependence of squares amounts of angular part of film element on angled part dimension. We propose relations, approximating obtained dependence. Calculation results and experimental researches of large-scale models are represented

Selection of initial approximation for reconstruction of images in impedance tomography

A new method was suggested for the selection of initial approximation to two fields of potentials at the reconstruction of images in impedance tomography