Determination Methods of Food Fibers Characteristics in Milk Mixtures with the Modified Fat Composition

The article presents main determination methods of technological parameters of food fibers in milk mixtures of the modified fat composition.The methods of studying the ability of food fibers to water and fat-absorption are offered. The values that characterize swelling parameters of vegetable ingredients in experimental mixtures are obtained.The effectiveness of the method of IR-spectroscopy for indentifying and comparing water-binding forms in mixtures of food fibers with water and butterdish is proved.The indices of thermal stability and degree of liquid fat outflow for mixtures with the modified fat composition with the maximal replacement of cream butter by 25 % of oil are obtained. The research results indicate objective possibilities for the effective use of food fibers Vicetal for stabilizing the structure and preventing consistence defects of products with the modified fat composition

Determination Methods Of Defrosted Protein-vegetable Mixtures Parameters Development

The aim of the work is to develop methods of investigating the influence of semolina and extruded semolina on quality and quantity parameters of mixtures with milk-protein concentrates in a cycle of freezing-defrost that allows to substantiate resource-saving in semi-products manufacturing.Obtained results of changes of the quality of protein-vegetable mixtures after the effect of negative temperatures confirm cryo-protective properties of carbohydrates of products of wheat processing.There were studied methods of extracting proteins of whey for getting albumin mass and using in the composition of milk-protein concentrates. It was established, that adding collagen-containing ingredients in amount 0,4 % for intensifying thermal coagulation of whey proteins decreases the duration of precipitation to (55±2) and (40±2) min respectively depending on a type of raw material processing. There were studied both native whey and protein concentrate, obtained by the method of ultra-filtration with mass share of dry substances (16±2) %.The method of thermal analysis determined a cryoscopic temperature of sour-milk fatless cheese and also albumin mass, obtained using «Collagen pro 4402». The calculation method, based on cryoscopic temperature indices determined an amount of moisture, frozen out in milk-whey mixtures with wheat processing products. The presented information is enough for estimating traditional modes of freezing milk-protein concentrates objectively.The obtained results of the studies indicate the effectiveness of the offered methods for determining parameters of protein-vegetable mixtures after defrosting. Measurements of quality parameters may be used for correcting mass losses of concentrates effectively

Re-Inventing Public Education:The New Role of Knowledge in Education Policy-Making

This article focuses on the changing role of knowledge in education policy making within the knowledge society. Through an examination of key policy texts, the Scottish case of Integrated Children Services provision is used to exemplify this new trend. We discuss the ways in which knowledge is being used in order to re-configure education as part of a range of public services designed to meet individuals' needs. This, we argue, has led to a 'scientization' of education governance where it is only knowledge, closely intertwined with action (expressed as 'measures') that can reveal problems and shape solutions. The article concludes by highlighting the key role of knowledge policy and governance in orienting education policy making through a re-invention of the public role of education

Systems of education governance and cultures of justice in Ireland, Scotland and Pakistan

This chapter compares the issue of cultures of justice in the systems of education governance in three education systems: Ireland, Scotland and Pakistan. The focus for the comparison are the current policies which shape the regulation of education. These policies were reviewed to identify key issues relating to social justice and equality, decision-making and accountability. From the analysis of each system, three central issues were identified: firstly, the improvement of a state education system; secondly, the degree of decentralisation and centralisation in governance structures and thirdly, the expectations placed on school leaders. The chapter concludes by discussing the tensions between the drive for system improvement and opportunities for school leaders to build strategies to address issues of inequality in schools

СТЕЙКХОЛДЕРНО-ИНТЕГРИРОВАННЫЙ ПОДХОД К ОЦЕНКЕ УРОВНЯ ИНЖЕНЕРНО-ИНФРАСТРУКТУРНОГО ОБЕСПЕЧЕНИЯ ГОРОДОВ

An algorithm for assessment of level in engineering and infrastructure support of urban area has been developed while using geographic information systems (GIS) in the framework of stakeholder-integrated approach. In order to achieve the target goal the following tasks have been solved: description of stakeholder-integrated approach to assessment of level in engineering and infrastructure support of cities; systematization of the existing approaches to assessment of level in engineering and infrastructure support of cities; development of an algorithm for determination of data for spatial models; development of spatial models for assessment of level in engineering and infrastructure support while using geographic information systems. A comprehensive approach has been proposed to simulate spatial factors in order to assess urban engineering and infrastructure support, which is different from the existing ones due to development and application of GIS tools. Spatial models of urban engineering and infrastructure support have been developed in the paper. They include territorial, ecological, power engineering, socio-economic and other characteristics. These models have made it possible to implement the proposed approach for simulation of the spatial factors. It is necessary to point out the fact that geographic information systems have been used and this approach provides a possibility to detailed consideration of models which reveal influence of spatial factors. So it is possible to increase objectivity of solving the problem.Разработан алгоритм оценки уровня инженерно-инфраструктурного обеспечения территории городов с использованием геоинформационных систем в рамках стейкхолдерно-интегрированного подхода. Для достижения поставленной цели решены следующие задачи: охарактеризован стейкхолдерно-интегрированный подход к оценке уровня инженерно-инфраструктурного обеспечения городов; систематизированы существующие подходы к оценке уровня инженерно-инфраструктурного обеспечения городов; разработан алгоритм определения данных пространственных моделей; построены пространственные модели для оценки уровня инженерно-инфраструктурного обеспечения с использованием геоинформационных систем. Предложен комплексный подход к моделированию пространственных факторов для оценки инженерно-инфраструктурного обеспечения города, который отличается от существующих разработкой и применением геоинформационного инструментария. Разработаны пространственные модели инженерно-инфраструктурного обеспечения территории города, включающие территориальные, экологические, энергетические, социально-экономические и другие характеристики, что позволило реализовать предложенный подход к моделированию пространственных факторов. Заслуживает внимания использование геоинформационных систем, что открывает возможность более детального рассмотрения моделей влияния пространственных факторов, позволяет повысить объективность решения поставленной проблемы

PROFESSORES DO PISA: A ESPERANÇA E A REALIZAÇÃO DA EDUCAÇÃO

RESUMO: As atividades do Programme for International Student Assessment (PISA) e os seus efeitos são diversos, sendo possível dizer que o PISA cria e forma uma fundamentação específica (HACKING, 1992) para discutir, falar e pensar sobre a educação. Neste estudo sobre as atividades do PISA, são analisadas as ideias sobre os professores, as atividades que realizam, e como estas são conceitualizadas no interior de uma narrativa própria ao PISA. Os resultados mostram que os professores são apresentados como sendo importantes e cruciais para a transformação e para o desenvolvimento da educação. Os professores também são representados como sendo essenciais para reduzir as "disparidades no desempenho" dos alunos medidas pelo teste PISA. Ademais, os "bons" professores e o ensino "eficaz" são descritos como os professores e as estratégias que conduzem a tal redução. Consequentemente, os principais relatórios do PISA enfatizam uma imagem dos professores como os atores que desenvolvem a educação e o ensino, e não como executantes de políticas determinadas pelo Estado. Deste modo, os professores são considerados como indicadores da eficácia dos sistemas de educação e importantes para elevar os padrões de desempenho, sendo assim considerados como a esperança e a realização da educação

The altered expression of α1 and β3 subunits of the gamma-aminobutyric acid A receptor is related to the hepatitis C virus infection

The modulation of the gamma-aminobutyric acid type A (GABA A) receptors activity was observed in several chronic hepatitis failures, including hepatitis C. The expression of GABA A receptor subunits α1 and β3 was detected in peripheral blood mononuclear cells (PBMCs) originated from healthy donors. The aim of the study was to evaluate if GABA A α1 and β3 expression can also be observed in PBMCs from chronic hepatitis C (CHC) patients and to evaluate a possible association between their expression and the course of hepatitis C virus (HCV) infection. GABA A α1- and β3-specific mRNAs presence and a protein expression in PBMCs from healthy donors and CHC patients were screened by reverse transcription polymerase chain reaction (RT-PCR) and Western blot, respectively. In patients, HCV RNA was determined in sera and PBMCs. It was shown that GABA A α1 and β3 expression was significantly different in PBMCs from CHC patients and healthy donors. In comparison to healthy donors, CHC patients were found to present an increase in the expression of GABA A α1 subunit and a decrease in the expression of β3 subunit in their PBMCs. The modulation of α1 and β3 GABA A receptors subunits expression in PBMCs may be associated with ongoing or past HCV infection

Аптамеры для диагностики и лечения глиальных опухолей человека

Purpose of the study: to evaluate the feasibility of using functional analogues of protein antibodies – dNa/ RNa aptamers in diagnostics, treatment and prognosis of human brain glial tumors.Material and Methods. The relevant literature sources were searched in scopus, Web of science, pubmed, elibrary with inclusion of publications from 2000 to 2023. sixty articles are presented in the review.Results. The analysis of the literature devoted to classification, diagnostics and therapy of brain glioblastomas was carried out and the feasibility of using for in vivo diagnostics and therapy of this disease aptamers, which are molecular recognition elements based on DNA/RNA oligonucleotides, capable of binding to the given molecular targets and distinguishing even separate functional groups in them, was studied. A list of aptamers to human glial brain tumors and their molecular targets that can be used for diagnostics and therapy of glioblastoma, including tumor imaging by pet/ct, mRi, plasmon resonance, fluorescence and confocal microscopy, etc., is presented. literature data suggest that DNA/RNA aptamers can be used to search for circulating tumor cells in the blood of glioblastoma patients, to target therapeutic drugs to the tumor and to inhibit tumor growth.Conclusion. Brain glioblastoma is a heterogeneous tumor consisting of cells at different stages of malignancy and, accordingly, with a different set of oncogenes. For this reason, a multitarget strategy that includes combined suppression of angiogenesis, invasion, metastasis, proliferation and survival of tumor cells should be proposed for the therapy of this disease. DNA/RNA aptamers tailored to key proteins involved in oncogenic transformation may be suitable candidates for the implementation of multitarget therapy for brain glioblastoma.Цель исследования – оценить возможность использования функциональных аналогов белковых антител – ДНК/РНК-аптамеров в диагностике, лечении и прогнозировании развития глиальных опухолей головного мозга человека.Материал и методы. Поиск соответствующих источников литературы проводили в системах scopus, Web of science, pubmed, elibrary с включением публикаций с 2000 по 2023 г. В обзоре представлены данные из 60 статей.Результаты. Проведен анализ литературы, посвященной классификации, диагностике и терапии глиобластом головного мозга и изучению возможности использования для in vivo диагностики и терапии этого заболевания аптамеров, которые представляют собой молекулярные распознающие элементы на основе ДНК/РНК-олигонуклеотидов, способных связываться с заданными молекулярными мишенями и различать в них даже отдельные функциональные группы. Приведен список из аптамеров к глиальным опухолям головного мозга человека и их молекулярных мишеней, которые могут быть использованы для диагностики и терапии глиобластомы, в том числе для визуализации опухоли методами ПЭТ/КТ, МРТ, плазмонного резонанса, флуоресцентной и конфокальной микроскопии и др. Данные литературы свидетельствуют о том, что с помощью ДНК/РНК-аптамеров можно осуществлять поиск циркулирующих опухолевых клеток в крови больных глиобластомой, адресную доставку к опухоли терапевтических препаратов и подавлять опухолевый рост.Заключение. Глиобластома головного мозга – гетерогенная опухоль, состоящая из клеток, находящихся на разной стадии злокачественности и, соответственно, с различным набором онкогенов. Именно поэтому для терапии этого заболевания должна быть предложена мультитаргетная стратегия, которая включает в себя комбинированное подавление ангиогенеза, инвазии, метастазирования, пролиферации и выживаемости опухолевых клеток. Подходящими кандидатами для реализации мультитаргетной терапии глиобластомы головного мозга могут стать ДНК/РНК-аптамеры, подобранные к ключевым белкам, участвующим в онкогенной трансформации

Integrated high-content quantification of intracellular ROS levels and mitochondrial morphofunction

Oxidative stress arises from an imbalance between the production of reactive oxygen species (ROS) and their removal by cellular antioxidant systems. Especially under pathological conditions, mitochondria constitute a relevant source of cellular ROS. These organelles harbor the electron transport chain, bringing electrons in close vicinity to molecular oxygen. Although a full understanding is still lacking, intracellular ROS generation and mitochondrial function are also linked to changes in mitochondrial morphology. To study the intricate relationships between the different factors that govern cellular redox balance in living cells, we have developed a high-contentmicroscopy-based strategy for simultaneous quantification of intracellular ROS levels and mitochondrial morphofunction. Here, we summarize the principles of intracellular ROS generation and removal, and we explain the major considerations for performing quantitative microscopy analyses of ROS and mitochondrial morphofunction in living cells. Next, we describe our workflow, and finally, we illustrate that a multiparametric readout enables the unambiguous classification of chemically perturbed cells as well as laminopathy patient cells