Change in blood glucose level in rats after immobilization

Experiments were carried out on male white rats divided into four groups. In group one the blood glucose level was determined immediately after immobilization. In the other three groups, two hours following immobilization, the blood glucose level was determined every 20 minutes for 3 hours 40 minutes by the glucose oxidase method. Preliminary immobilization for 2 hours removed the increase in the blood glucose caused by the stress reaction. By the 2nd hour of immobilization in the presence of continuing stress, the blood glucose level stabilized and varied within 42 + or - 5.5 and 47 + or - 8.1 mg %. Within 2 hours after the immobilization, the differences in the blood glucose level of the rats from the control groups were statistically insignificant

«Вероятный избиратель»: эволюция и модификации модели Гэллапа

В статье рассматриваются методики составления прогнозов результатов выборов на основе опросных данных. В основе большинства таких прогнозов лежит методика, сконструированная Дж. Гэллапом в середине прошлого века. Авторы прослеживают эволюцию модели Дж. Гэллапа от хрестоматийной «победы 1936 года» до современных модификаций. Описаны эксперименты, проведенные в ходе формирования прогнозных моделей, представлен перечень вопросов, используемых американскими полстерами для прогнозирования результатов выборов, подробно разобран механизм подсчета баллов в моделях отсечения (cutoff), рассмотрены ограничения модели Гэллапа

Classical swine fever: retrospective analysis of epidemic situation in Russian Federation (1996-2015)

Progress trends in classical swine fever (CSF) epidemic situation in the Russian Federation in 1996-2015 are discussed in the paper. Spatial shift of CSF outbreaks from the central regions of the country (2007-2012) to the western and eastern border regions of the Russian Federation (2013-2015) has been confirmed. Based on the analysis, a short-term prognosis for 2016 has been made as well as recommendations on DIVA-based measures for CSF eradication in domestic pigs and wild boars in the RF have been provided

Перестраиваемый полосно-пропускающий фильтр на элементах с сосредоточенными параметрами с независимым непрерывным управлением центральной частотой и шириной полосы пропускания

An approach to design tunable bandpass filters on coupled series LC-tanks with variable capacitors is proposed. Such filters are shown able to provide an independent continuous tuning of center frequency and bandwidth. Design, simulated and measured characteristics of a three-pole varactor-tuned bandpass filter are presented.Предложен подход к проектированию перестраиваемых полосно-пропускающих фильтров на связанных последовательных LC-контурах с переменными конденсаторами. Показано, что такие фильтры способны обеспечивать непрерывную независимую перестройку центральной частоты и ширины полосы пропускания в широких пределах. Представлены конструкция, а также результаты моделирования и экспериментального исследования характеристик трехзвенного перестраиваемого полосно-пропускающего фильтра, управляемого варикапами

Перестраиваемые полосно-пропускающие фильтры с постоянной шириной полосы пропускания на элементах с сосредоточенными параметрами

Lumped-element bandpass filters using LC-tanks and immittance inverters are considered. Tuning of the central frequency is provided by using variable capacitors of LC-tanks and immittance inverters. Tunability of constant-bandwidth bandpass filters is analyzed. Conditions to keep absolute and fractional bandwidth constant are presented. Tunability limitations due to to practical implementation of the immittance inverters and using of real controlling com.ponents (variable capacitors) are discussed. Design of a 3-pole tunable bandpass filter with constant absolute bandwidth is presented.Рассмотрены перестраиваемые полосно-пропускающие фильтры (ППФ) на элементах с сосредоточенными параметрами, состоящие из LC-контуров и инверторов сопротивления или проводимости. Перестройка центральной частоты обеспечивается переменными конденсаторами, входящими в контуры и инверторы. Проанализирован диапазон перестройки ППФ с сохранением постоянной ширины полосы пропускания. Приведены условия сохранения абсолютной и относительной ширины полосы пропускания. Обсуждены ограничения на диапазон перестройки ППФ, связанные с практической реализацией инверторов сопротивления/проводимости и с использованием реальных управляющих элементов (переменных конденсаторов). Представлены результаты проектирования перестраиваемого ППФ третьего порядка с постоянной абсолютной шириной полосы пропускания

Microwave-Assisted synthesis and evaluation of antibacterial activity of novel 6-fluoroaryl-[1,2,4]triazolo[1,5-A]pyrimidines

A series of 6-fluoroaryl substituted [1,2,4]triazolo[1,5-A]pyrimidines have been synthesized by using the microwave-Assisted Suzuki cross-coupling reaction from readily available 6-bromo-[1,2,4]triazolo[1,5-A]pyrimidine. The antimicrobial activity of new compounds has been evaluated in vitro against Mycobacterium tuberculosis H37Rv and gram-negative (Neisseria gonorrhoeae ATCC 49226) bacteria. © ARKAT-USA, Inc

Studying of the Polylactide or Polyglycylidactide Surface Layer Biodegradation in Neutral Media for the Subsequent Layered Composite Creation

  The processes of biodegradation in phosphate buffer with pH 7.4 and 0.9 wt.% NaCl of polymer polylactide or polyglycylidactide films for the subsequent creation of a layered composite with a biodegradable layer on the basis of a nickel-free shape memory alloy TiNbTaZr were studied. The structure of the samples was determined by SEM and an optical microscope. For polylactide films the rate of biodegradation did not depend on the mass of the film. A gradual decrease in the rate of biodegradation at any mass with a similar dependence on time is noted. With an increase in the mass of films based on poly(glycolide-lactide) the rate of biodegradation increased. And even at the initial stage the dissolution rate is 2-3 times higher than in pure polylactide. On day 180, complete dissolution of the polyglycolidelactide was observed (even a precipitate was not observed) and completely entire polylactide films, however, lost  their transparency, was noted

Gender Asymmetry of Small Business (on the Example of Moscow)

The article examines trends, problems and prospects for broader involvement in entrepreneurship of women as the most professionally educated part of the country’s manpower, which could, on the one hand, impart the necessary dynamics to the business development process, and, on the other hand, expand opportunities and flexibility of professional employment of women themselves. The purpose of the article is to analyse the existing gender asymmetry of the parameters of Russian entrepreneurship and their characteristics in the capital, to identify gender differences in the barriers that entrepreneurs face in their work, to assess the possibilities and conditions for expanding employment of women in small and medium businesses. The work is based on data from Rosstat, obtained in the framework of projects “Population survey on employment problems” and “Comprehensive monitoring of living conditions of the population”, as well as from a survey of Moscow population engaged in small business, which was conducted by the Institute of Economics of the Russian Academy of Sciences in 2015. The author showed that barriers faced by entrepreneurs in their activities are not discriminatory, and the differences in expectations for government support, demonstrated by male and female entrepreneurs, mainly reflect the difference in the size of their business and segregation of the business by economic activity

Gender Aspects of Pension Reform in Russia

The feminization of poverty at an elderly age is widespread throughout the world. The existing pension systems, as a rule, are oriented toward the male employee, for whom paid work on a constant basis in the course of an entire work day is typical.

Tunable lumped-element bandpass filters with constant bandwidth

Lumped-element bandpass filters using LC-tanks and immittance inverters are considered. Tuning of the central frequency is provided by using variable capacitors of LC-tanks and immittance inverters. Tunability of constant-bandwidth bandpass filters is analyzed. Conditions to keep absolute and fractional bandwidth constant are presented. Tunability limitations due to to practical implementation of the immittance inverters and using of real controlling com.ponents (variable capacitors) are discussed. Design of a 3-pole tunable bandpass filter with constant absolute bandwidth is presented