1,660 research outputs found

    Electrochemical processes and systems: application for tutors

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    The features of redox reactions and the principles of their balancing according to the medium composition are considered. The basic representations about electrochemical processes and systems are outlined. The reactions and principles of chemical sources of electric energy and electrolysis systems functioning are analyzed. A general idea is given about the chemical properties of metals, corrosion resistance in environments of various aggressiveness, and the protection principles are given. Multivariate tasks and exercises for students, and PhD student’s classroom and independent work are offered. For teachers, PhD students and students of universities of specialties "Chemical technologies and engineering", "Biotechnologies and bioengineering", "Oil and gas engineering and technologies".Розглянуто особливості окисно-відновних реакцій і принципи їх балансування залежно від складу середовища. Викладено фундаментальні уявлення про електрохімічні процеси і системи. Проаналізовано перебіг реакцій і принципи функціонування хімічних джерел електричної енергії та систем електролізу. Узагальнено уявлення щодо хімічних властивостей металів, корозійної стійкості у середовищах різної агресивності та наведено принципи організації захисту від руйнування. Запропоновано багатоваріантні завдання та вправи для аудиторної та самостійної роботи студентів і аспірантів. Розраховано на викладачів, аспірантів і студентів вищих навчальних закладів спеціальностей "Хімічні технології та інженерія”, "Біотехнології та біоінженерія", "Нафтогазова інженерія та технології"

    Current health and fitness technologies in Physical Education” as an academic discipline in the higher education system

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    The paper contains a theoretical analysis of methodological basis of current health and fitness technologies as an academic discipline and summarizes up-to-date information on importance and necessity a fitness specialist for modern societyВ статье представлен теоретический анализ методологических основ современных физкультурно-оздоровительных технологий как учебной дисциплины, обобщены современные сведения о значимости и необходимости для современного общества специалиста по фитнесс

    PROSPECTIVE «PROFESSIONAL IMAGE OF ME» AS A FACTOR OF IDENTITY FORMATION IN ACTIVITY

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    В статье обсуждается значимость самоопределения в деятельности для успешной профессиональной социализации. Показывается необходимость работы по формированию перспективного «профессионального образа я» для реализации самоопределенческих действий. Описываются практические шаги по реализации взаимодействия с обучающимися, приводящие к достижению эффектов самоопределенияThe paper covers the significance of identity formation in activity for successful professional socialization. It shows necessity in working on formation of the prospective "professional image of me" for implementation of activities on identity formation. The paper offers practice-oriented steps on implementation of collaboration with a learner leading to effects of identity formatio

    Rational use of forest as a renewable natural resource

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    This article is devoted to the formation of a mechanism for the rational use of forests as a renewable natural resource, including transfer of forest areas in rent taking into account market indicators, advantages and disadvantages in the process of timber sales. The total income received in the form of fees for the use of forest fund and for the use of forests in 2016 in the Russian Federation is amounted to 24.4 billion rubles, which is 0.9 billion rubles (by 3.8%) more compared with the previous year. According to the state report of the Ministry of Natural Resources and Ecology, in the reporting 2016 year this payment was received in the amount of 27.8 billion rubles, which is 3.4 billion rubles (almost 14%) more than in 2015. Thus, due to the fact that Russia's natural forest resources constitute powerful strategic competitive advantage in the world economic system, the article, on the basis of the system approach, reveals correlation between the level of rent payments and profitability from the sale of round wood, taking into account harvested and considered assortments, which allows forming forest payments on the basis of domestic and export market prices and as a result increasing financial contribution from the use of forests to the national budget.peer-reviewe

    Increase housing provision of citizens as a priority direction of social and economic development of the region

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    Set out the results of the study provide citizens with housing as a priority direction of social and economic development of the market; showed the causes of low housing provision of citizens of the Belgorod region, made conclusions and identified measures to increase housing provision in the cities of RussiayesBelgorod State National Research Universit

    АНАЛІЗ НЕСПРИЯТЛИВИХ ПОДІЙ ПІСЛЯ ІМУНІЗАЦІЇ ВАКЦИНАМИ ПРОТИ SARS CoV-2

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    Although the WHO-recommended coronavirus vaccines are safe and effective, vaccines provide new information to healthcare professionals about the extent and nature of adverse reactions to these drugs. The aim of the study is supplementing the available data on adverse reactions of vaccines on the example of the experience of vaccination of the teaching staff of the Cherkasy Medical Academy with vaccines COVISHIELD and COMIRNATY. Information for this study was collected retrospectively through a survey of 72 employees of the Cherkasy Medical Academy who were vaccinated with the COVISHIELD vaccine (first dose); 67 workers vaccinated with AstraZeneca (second dose); 54 workers who were vaccinated with COMIRNATY vaccine (first dose); 52 people vaccinated with this vaccine (second dose). The study confirmed that among the local side effects, the most common were pain at the injection site, among the systemic - fever, weakness, fatigue and drowsiness, headache, muscle pain, chills. Most of the side effects were most pronounced in young people, more often in women than in men.Although the WHO-recommended coronavirus vaccines are safe and effective, vaccines provide new information to healthcare professionals about the extent and nature of adverse reactions to these drugs. The aim of the study is supplementing the available data on adverse reactions of vaccines on the example of the experience of vaccination of the teaching staff of the Cherkasy Medical Academy with vaccines COVISHIELD and COMIRNATY. Information for this study was collected retrospectively through a survey of 72 employees of the Cherkasy Medical Academy who were vaccinated with the COVISHIELD vaccine (first dose); 67 workers vaccinated with AstraZeneca (second dose); 54 workers who were vaccinated with COMIRNATY vaccine (first dose); 52 people vaccinated with this vaccine (second dose). The study confirmed that among the local side effects, the most common were pain at the injection site, among the systemic - fever, weakness, fatigue and drowsiness, headache, muscle pain, chills. Most of the side effects were most pronounced in young people, more often in women than in men

    Transplantable Subcutaneous Hepatoma 22a Affects Functional Activity of Resident Tissue Macrophages in Periphery

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    Tumors spontaneously develop central necroses due to inadequate blood supply. Recent data indicate that dead cells and their products are immunogenic to the host. We hypothesized that macrophage tumor-dependent reactions can be mediated differentially by factors released from live or dead tumor cells. In this study, functional activity of resident peritoneal macrophages was investigated in parallel with tumor morphology during the growth of syngeneic nonimmunogenic hepatoma 22a. Morphometrical analysis of tumor necroses, mitoses and leukocyte infiltration was performed in histological sections. We found that inflammatory potential of peritoneal macrophages in tumor-bearing mice significantly varied depending on the stage of tumor growth and exhibited two peaks of activation as assessed by nitroxide and superoxide anion production, 5′-nucleotidase activity and pinocytosis. Increased inflammatory reactions were not followed by the enhancement of angiogenic potential as assessed by Vascular Endothelial Growth Factor mRNA expression. Phases of macrophage activity corresponded to the stages of tumor growth characterized by high proliferative potential. The appearance and further development of necrotic tissue inside the tumor did not coincide with changes in macrophage behavior and therefore indirectly indicated that activation of macrophages was a reaction mostly to the signals produced by live tumor cells
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