376 research outputs found

    Activation of learning and creative activity of the vocational pedagogical university students

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    The relevance of the problem under study is based on the society’s demand for training students - future professional training teachers ready to solve in a creative manner a wide range of professional and pedagogical tasks, as well as to develop professionally-oriented creative work in the process of training; it is also caused by the insufficient extent of the prior research within the vocational training theory of scientific and methodological mechanisms required for implementing this process. The purpose of the article is to develop a conceptual structural model of professionally-oriented learning and creative activity of the vocational pedagogical university students. Leading method for studying this problem is modelling which allows to consider this problem as the process of goaloriented and deliberate acquiring by future professionals the creative approaches to implementation of professional activity. The article presents a structural model of learning and creative activity of vocational pedagogical university students, justifies the necessity to single out in the structure of the students’ learning and creative activity three interconnected components (creative, professional-pedagogical and personal-acmeological), proves the productivity of activating the learning and creative activity of the vocational pedagogical university students by organizing it as quasi-professional process of searching and solving professional tasks which are subjectively and objectively new, on the basis of using synectics including association methods of activating creative thinking integrated into the its structure. The article can be useful for teachers within the vocational and pedagogical education system, as well as for professionals who develop creative abilities of students based on the heuristic creativity methods. © 2016 Krayukhina et al

    Determination of generations X, Y, Z user preferences in the Russian mobile application market

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    In the work, the authors reveal the user preferences of the mobile application market. The study is based on the Strauss–Howe generational theory. The mobile application market appears to be dynamic and fast-growing in an environment of exponential growth in consumer demand and a highly competitive environment. In the article, the authors classify and identify categories and subcategories of mobile applications based on their functional and value purpose. This classification formed the basis for determining the dependence based on the analysis of contingency matrices between the preference of the application for its purpose and the age category of the user, which made it possible to identify the relationship between generations of users and their choice of certain types of applications. The text provides a justification for the choice of certain applications on a daily basis by generations X, Y, Z. The relevance of the study lies in the fact that the authors examine a market, the rapid growth of which is conditioned by the global socio-economic situation. The information obtained during the analysis of user preferences of the Russian mobile application market can be used by specialists in determining the target audience of a digital product and developing marketing strategies

    ANXIOLYTIC EFFECT OF HERBAL REMEDY «NOOPHYT»

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    It was determined that liquid extract of herbal remedy «Noophyt» had. a sedative effect in unpunishable behaviour conditions. The remedy reliably increases number of exits and duration of stay in open branches of uplifted. X-shaped labyrinth number of transitions and. duration of stay in a light part of dark/light chamber

    Управление качеством химико-технологического процесса непрерывного синтеза активной фармацевтической субстанции лекарственных соединений в проточных микрореакторах

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    Objectives. The introduction of digital tools for the development of medicines, intelligent management systems, and quality control is stipulated not only by modern requirements for the chemical and pharmaceutical industry but also by strict regulatory requirements for manufactured products. This principle ensures the release of a quality product on the first attempt. The aim of this study is to develop information support for the intelligent quality management system for the production of active pharmaceutical substances (APSs) for medicines using a fundamentally new technology: continuous synthesis in flow microreactors. To develop the necessary information support, we developed appropriate systemic, informational, and mathematical models; algorithms for the online management of the experiment; and techniques and algorithms to qualitatively assess whether the product meets official regulatory documents.Methods. System analysis techniques, information and mathematical modeling techniques with multireference regression models, and online optimization using the Hook–Jeevs algorithm (a method of expert evaluation based on the concordance factor) were used to solve the problems formulated.Results. To manage the quality of the process of continuous APS synthesis in the flow microreactor, we developed theoretic multiple system models that were designed to build the digital information environment for the process of experimental research. We developed algorithms for mathematical modeling and optimization of the control process based on multiresponse regression models and an online optimization algorithm that allows the process to be managed step by step, taking into account the limitations. Our results show that the degree of conversion is higher in reactions that contain bromodiphenylmethan.Conclusions. Based on mathematical modeling method algorithms for the quality control of the process of continuous APS synthesis on a fundamentally new microreactor system, Qmix were developed. The applicability of the proposed methods and algorithms in the production of the drug diphenhydramine from chlorobenzohydrol and bromobenzohydrol as initial substances was proven by an experimental study. The built models were statistically adequate and valid.Цели. Внедрение цифровых инструментов в разработку лекарственных препаратов, интеллектуальных систем управления и контроля качества обусловлено не только современными требованиями к химико-фармацевтической отрасли, но и строгими регламентированными требованиями к выпускаемой продукции. При этом повышение эффективности разработки и производства лекарственных средств на всех этапах их жизненного цикла опирается на системное применение принципа Quality-by-Design (QbD) – «качество, запланированное при разработке». Это системный подход к разработке лекарственных препаратов, который начинается с четко определенных целей и оканчивается получением лекарственного препарата, с учетом понимания его процесса изготовления и стратегии контроля, основываясь на надежных научных данных и оценке рисков, связанных с качеством. Применение этого принципа позволяет гарантировать выпуск качественного продукта «правильно с первого раза». Это достигается применением на всех стадиях новых технологий цифровизации всех систем сбора, обработки и хранения информации. Целью работы является разработка информационной поддержки интеллектуальной системы управления качеством получения активных фармацевтических субстанций (АФС) лекарственных средств с помощью принципиально новой технологии непрерывного синтеза на микрореакторах проточного типа. Использование этих микрореакторов имеет ряд серьезных преимуществ по сравнению с традиционными периодическими процессами. Среди них возможность подключения аналитического оборудования в проточном режиме, что позволяет обеспечить высокий уровень компьютеризации управления синтезом. Для разработки необходимого информационного обеспечения были разработаны соответствующие системные, информационные и математические модели, алгоритмы online управления экспериментом, методики и алгоритмы оценки качества продукта на основе официальных регламентных документов. Методы. Для решения поставленных задач были использованы методы системного анализа, методы информационного и математического моделирования с построением многооткликовых регрессионных моделей и online оптимизации по алгоритму Хука-Дживса, метод экспертного оценивания на основе коэффициента конкордации. Приведенное алгоритмическое обеспечение реализовано с помощью программной среды SciLab.Результаты. Для управления качеством процесса непрерывного синтеза АФС на проточном микрореакторе построены теоретико-множественные системные модели, служащие для построения цифровой информационной среды процесса экспериментальных исследований. Разработаны алгоритмы математического моделирования и оптимизации процесса управления на основе многооткликовых регрессионных моделей и online алгоритма оптимизации, позволяющие осуществлять пошаговое управление процессом с учетом ограничений. Разработан алгоритм экспертного оценивания качества процесса синтеза на основе анализа эффективности и риска разрабатываемого лекарственного средства. Проведены тестовые испытания системы управления на микрореакторной системе Qmix на примере получения АФС дифенгидрамина при применении в качестве исходных веществ хлордифенилметана и бромдифенилметана. Показано, что степень конверсии выше в реакции, где участвует бромдифенилметан. В этом случае в полученной реакционной массе не остается примесей исходных реагентов.Выводы. На основе методов математического моделирования разработаны алгоритмы управления качеством процесса непрерывного синтеза АФС с использованием принципиально новой микрореакторной системе Qmix. Экспериментальными исследованиями доказана работоспособность предложенных методов и алгоритмов в производстве лекарственного средства димедрола из исходных веществ хлорбензогидрола и бромбензогидрола, показана статистическая адекватность и состоятельность построенных моделей

    Selection of a SARS-CoV-2 antibody quantification method and development of an antibody reference standard for ELISA to test immunoglobulin preparations

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    The development of COVID-globulin, a COVID-19-specific human immunoglobulin preparation, involved choosing a method to quantify antibodies to SARS-CoV-2. Antibody titre determination by virus neutralisation (VN) is labour-intensive and unsuitable for large-scale application. To enable routine testing, it was necessary to develop a less demanding method; the enzyme-linked immunosorbent assay (ELISA) was the most appropriate of solutions. The lack of international and industry reference standards (RS) prompted the preparation and certification of an RS for COVID-globulin potency control.The aim of the study was to examine the possibility of substituting ELISA for VN and to develop an RS for SARS-CoV-2 antibody quantification in immunoglobulin preparations.Materials and methods: the authors used commercial ELISA kits by several manufacturers, COVID-globulin by Microgen (48 batches), and human plasma samples from multiple sources (1499 samples). The tests were performed by VN, ELISA, and chemiluminescent microparticle immunoassay.Results: the authors validated an ELISA method for SARS-CoV-2 antibody quantification with the selected reagent kits by the National Medical Research Center for Hematology (NMRC for Hematology) and Euroimmun AG. The authors demonstrated the possibility of using ELISA instead of VN (with a correlation coefficient of more than 0.9). They developed and characterised an in-house RS for SARS-CoV-2 antibody content in human immunoglobulin preparations. The RS was certified in newly introduced anti-COVID units (ACU) and in international binding antibody units (BAU) using the World Health Organisation (WHO) international reference panel (NIBSC code: 20/268). The RS's potency was measured in terms of its neutralising activity in ACU (320 ACU/mL) and BAU (2234.8 BAU/mL). The authors established the relationship between ACU and BAU units. For the selected ELISA reagent kits, the conversion factors were 6.4 (NMRC for Hematology) and 7.0 (Euroimmun AG).Conclusions: the ELISA method for SARS-CoV-2 antibody quantification and the RS for SARS-CoV-2 antibody content can be applied to determine the potency of human anti-COVID-19 immunoglobulins
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