Development and technique of application of the multimedia technology at lectures on physics

Сформулированы основные требования, предъявляемые к презентациям на лекции. Описаны методические особенности применения мультимедийных технологий. Указаны основные проблемы внедрения данных технологий.Main requirements, which are shown to presentations at lecture, are formulated. Methodical especially of application of the multimedia technology are described. Main problems of introduction of giver technology are indicated

Data for increase of Lymantria dispar male survival after topical application of single-stranded RING domain fragment of IAP-3 gene of its nuclear polyhedrosis virus

This data article is related to the research article entitled “The RING for gypsy moth control: topical application of fragment of its nuclear polyhedrosis virus anti-apoptosis gene as insecticide” [1]. This article reports on significantly higher survival of gypsy moth Lymantria dispar male individuals in response to topical application of single-stranded DNA, based on RING (really interesting new gene) domain fragment of LdMNPV (L. dispar multicapsid nuclear polyhedrosis virus) IAP-3 (inhibitor of apoptosis) gene and acted as DNA insecticide

Measurement of the K+→μ+νμγK^+\rightarrow{\mu^+}{\nu_{\mu}}{\gamma} decay form factors in the OKA experiment

A precise measurement of the vector and axial-vector form factors difference $F_V-F_A$ in the $K^+\rightarrow{\mu^+}{\nu_{\mu}}{\gamma}$ decay is presented. About 95K events of $K^+\rightarrow{\mu^+}{\nu_{\mu}}{\gamma}$ are selected in the OKA experiment. The result is $F_V-F_A=0.134\pm0.021(stat)\pm0.027(syst)$. Both errors are smaller than in the previous $F_V-F_A$ measurements.Comment: 9 pages, 8 figure

ЭКСПРЕСС-МЕТОД ОЦЕНКИ ЭФФЕКТИВНОСТИ ПРОТИВОМОРОЗНЫХ ДОБАВОК

Usage of chemical additives while executing concrete works at negative temperatures is considered as a convenient and economical method. Range of the used antifreeze additives is rather wide. A great number of new additives are advertised but their characteristics have not been practically studied. Evaluation of the antifreeze additive efficiency is unfortunately rather long process and it does not provide comprehensive data on concrete structure formation processes. Due to this development of rapid and comprehensive methodology for construction companies is urgently required.Freezing processes of antifreeze additive aqueous solutions and hardening of cement paste with them have been investigated in the paper. The paper proposes a methodology for determination of freezing point for aqueous solutions of chemical additives of various applications. Identity of  freezing point for a chemical additive aqueous solution and cement paste with an equal concentration of the additive in the paste pore fluid has been determined while taking  calcium nitrate and sodium formate additives as an example. The paper demonstrates the possibility to evaluate efficiency of antifreeze additive action on the basis of kinetics in temperature changes of the cement paste with additives by its consecutive freezing and defrosting.  A methodology for operational evaluation in the field of chemical additive application for concreting items at negative temperatures has been offered in the paper.  The methodology does not require  deficient and expensive test-equipment. It can be applied at ordinary construction companies and it is comprehensible for personnel of low-qualification.  The paper shows the possibility to develop an original methodology for designing concrete structure which is based on operating efficiency determinations  for single and integrated antifreeze additives.Использование химических добавок в практике ведения бетонных работ при отрицательных температурах – удобный и экономичный метод. Гамма используемых противоморозных добавок весьма широка. Рекламируются многочисленные новые добавки, характеристики которых практически не изучены. Оценка эффективности противоморозных добавок, к сожалению, длительна и не дает исчерпывающей информации о процессах структурообразования бетона, в связи с чем разработка оперативной и доступной для строительных организаций методики настоятельно необходима.Исследованы процессы замерзания водных растворов противоморозных добавок и твердения цементного теста с ними. Предложена методика определения температуры замерзания водных растворов химических добавок различного назначения. На примере добавок нитрата кальция и формиата натрия установлена идентичность температуры замерзания водного раствора химической добавки и цементного теста с равной концентрацией добавки в поровой жидкости теста. Показана возможность оценки эффективности действия противоморозных добавок по кинетике изменения температуры цементного теста с добавками посредством его последовательного замораживания и размораживания. Предложена методика оперативной оценки области применения химических добавок для бетонирования изделий при отрицательных температурах. Методика не требует дефицитного и дорогостоящего испытательного оборудования, применима в рядовых строительных организациях, доступна работникам низкой квалификации. Показана возможность разработки оригинальной методики проектирования состава бетона, основывающейся на оперативных определениях эффективности одинарных и комплексных противоморозных добавок

Voting 'against all' in postcommunist Russia

Since the early 1990s voters in Russia (and most of the other post-Soviet republics) have been offered the opportunity to vote ‘against all’ parties and candidates. Increasing numbers have done so. The evidence of two post-election surveys indicates that ‘against all’ voters are younger than other voters, more urban and more highly educated. They do not reject liberal democracy, but are critical of the contemporary practice of Russian politics and find no parties that adequately reflect their views. With the ending of the ‘against all’ facility in 2006 and other changes in the Russian electoral system under the Putin presidency, levels of turnout are likely to fall further and the protest vote will seek other outlets within or outside the parliamentary system

FORMATION OF RESPONSE OF RATS ORGANISM ON SINGLE INFLUENCE OF TERIZIDONE - 300 MG

The article presents the materials of experimental study of Terizidone preparation in conditions of single peroral influence on animals in different doses with a view to reveal response of an organism for using in the evaluation of general toxic action of an advanced antituberculous preparation

FORMATION OF RESPONSE OF RATS ORGANISM ON SINGLE INFLUENCE OF TERIZIDONE - 250 MG + PYRIDOXINE HYDROCHLORIDE - 10 MG

The article presents the materials of experimental study of Terizidone in combination with pyridoxine hydrochloride in conditions of single peroral influence on animals in different doses with a view to reveal response of an organism for using in the evaluation of general toxic action of an advanced antituberculous preparation

Оценка термонапряженного состояния бетонного массива

The paper describes a technique for assessing the thermally stressed state of a concrete massif of a foundation slab made of a self-compacting concrete mixture. The proposed method consists in a preliminary calculation of temperature fields in hardening concrete. The objects of research have been self-compacting concrete mix and structural concrete in the structure mass. The choice of materials for the preparation of a concrete mixture is given and substantiated. The composition of self-compacting concrete has been used to assess the thermally stressed state. A binder with a reduced exotherm has been used in order to reduce the self-heating of concrete. Studies have been carried out to assess the specific heat release of the recommended cement depending on the initial water-cement ratio. The effect of a chemical additive on the rate and magnitude of the specific heat release of cement has been studied.  The paper presents the main theoretical provisions and an algorithm for calculating the thermal stress state of a concrete massif. The finite difference method has been used to calculate the expected temperatures and their distribution in the structure mass, and the temperature stresses in the sections of the concrete mass have been calculated to assess the thermally stressed state. The performed calculations of the temperature fields have made it possible to estimate the maximum possible temperatures and temperature differences over the sections of the concrete massif depending on the initial temperature of the concrete mixture and the average daily temperature of the outside air. Analysis of the temperature distribution has revealed the most dangerous sections of the concrete mass. An assessment of the thermal stress state of the concrete mass has been made on the basis of the results pertaining to calculation of temperature fields. The calculation of temperature stresses in the most dangerous sections of the concrete massif has been performed. It is shown that the calculated value of the temperature stress can serve as a characteristic of the thermally stressed state of the concrete mass. The formation of temperature cracks in a concrete mass is possible when the calculated value of the temperature stress exceeds the actual tensile strength of concrete. Comparison of the calculated and actual values of temperatures in the sections of the foundation slab has made it possible to conclude that the calculations of the temperature fields and, as a consequence, possible temperature deformations are correct.В статье изложена методика оценки термонапряженного состояния бетонного массива фундаментной плиты, изготовленной из самоуплотняющейся бетонной смеси. Предлагаемая методика заключается в предварительном расчете температурных полей в твердеющем бетоне. Объектами исследований являлись самоуплотняющаяся бетонная смесь и конструкционный бетон в массиве конструкции. Приведен и обоснован выбор материалов для приготовления бетонной смеси. Для оценки термонапряженного состояния использован состав самоуплотняющегося бетона. С целью снижения величины саморазогрева бетона применяли вяжущее с пониженной экзотермией. Выполнены исследования по оценке удельного тепловыделения рекомендованного цемента в зависимости от начального водоцементного отношения. Изучено влияние химической добавки на скорость и величину удельного тепловыделения цемента. Приведены основные теоретические положения и алгоритм расчета термонапряженного состояния бетонного массива. Для расчета ожидаемых температур и их распределения в массиве конструкции использовали метод конечных разностей, а для оценки термонапряженного состояния рассчитывали температурные напряжения в сечениях бетонного массива. Выполненные расчеты температурных полей позволили оценить максимально возможные температуры и температурные перепады по сечениям бетонного массива в зависимости от начальной температуры бетонной смеси и среднесуточной температуры наружного воздуха. Анализ распределения температур выявил наиболее опасные сечения бетонного массива. На основании результатов расчета температурных полей проведена оценка термонапряженного состояния бетонного массива. Выполнен расчет температурных напряжений в наиболее опасных сечениях бетонного массива. Показано, что характеристикой термонапряженного состояния бетонного массива может служить расчетная величина температурного напряжения. Образование температурных трещин в бетонном массиве возможно при превышении расчетного значения температурного напряжения над фактической прочностью бетона на растяжение. Сравнение расчетных и фактических значений температур в сечениях фундаментной плиты позволило сделать вывод о правильности выполненных расчетов температурных полей и, как следствие, о возможных температурных деформациях

Molecular alliance of Lymantria dispar multiple nucleopolyhedrovirus and a short unmodified antisense oligonucleotide of its anti-apoptotic IAP-3 gene: A novel approach for gypsy moth control

Baculovirus IAP (inhibitor-of-apoptosis) genes originated by capture of host genes. Unmodified short antisense DNA oligonucleotides (oligoDNAs) from baculovirus IAP genes can down-regulate specific gene expression profiles in both baculovirus-free and baculovirus-infected insects. In this study, gypsy moth (Lymantria dispar) larvae infected with multiple nucleopolyhedrovirus (LdMNPV), and LdMNPV-free larvae, were treated with oligoDNA antisense to the RING (really interesting new gene) domain of the LdMNPV IAP-3 gene. The results with respect to insect mortality, biomass accumulation, histological studies, RT-PCR, and analysis of DNA apoptotic fragmentation suggest that oligoRING induced increased apoptotic processes in both LdMNPV-free and LdMNPV-infected insect cells, but were more pronounced in the latter. These data open up possibilities for promising new routes of insect pest control using antisense phosphodiester DNA oligonucleotides