bluuebunny/crossref_metadata_2025 huggingface dataset:
Modern State in Higher Education Internationalization at Global and Local Levels (by the Example of SSU, SNAU, SSPU. Ukraine)
Authors: Chyrva Andrij , Statsenko Оlena , Kyrychenko Тetiana
Published: August 2021

The article aims to reveal modern state of higher education internationalization (HEI) at global and local levels. Synthesis of conceptual approaches to studying HEI allowed to concretize the meaning of HEI at modern stage in a global and institutional levels. Renovated notion has been proposed as “complete internationalization”. It is interpreted as engagement, devotion and commitment of both all education management levels and teaching stuff to multifaceted process of intentional long-lasting infusion and integration of international dimensions with comparative constituent into all functions and missions of higher education and active designing of policies, plans, programs, strategies and approaches for promotion of internationality in higher education. Due to theoretical method of conceptual and comparative analysis of research and strategic documents and the latest scientific publications on issues of global internationalization of higher education, analysis of foreign and local experience, conceptual approaches to studying HEI were depicted modern internationalization forms at global level. Interviews initiated with heads of international affairs offices enabled us to find out HEI state at local level. Questionnaires with international students, focused on likes and dislikes concerning infrastructure, teaching methods, communication with local students, future plans helped to identify the level of students’ satisfaction and attractiveness of Sumy universities. Main priorities of stakeholders are defined. Recommendations concerning further possible development of higher education internationalization are given.
Philosophy of a Transdisciplinary Approach in Designing an Open Information and Educational Environment of Institutions of Higher Education
Authors: Rostoka Marina , Guraliuk Andrii , Cherevychnyi Gennadii , Vyhovska Olha , Poprotskyi Igor , Terentieva Nataliia
Published: August 2021

The proposed article unveils a philosophical understanding of the technology of designing an open information and educational environment of higher education institutions. The expediency of introducing a transdisciplinary approach into this process as the most generalized and universal, one that overcomes the limits of disciplinary fragmentation with its shortcomings, gives a more complete picture of the world and fundamental relationships is shown. In philosophical terms, the goal of the proposed research involves the actualization of the study of the problems of transdisciplinary paradigmatics, namely, aspects of transdisciplinary education; focusing the attention of the scientific and educational community on the necessity and importance of transdisciplinary research and the development of strategies related to this phenomenon; the obviousness of obtaining a synergistic effect as a result of the introduction of a transdisciplinary approach in the design and formation of the information and educational environment of higher education institutions, recognition of the importance of adaptive management of social and pedagogical systems in this aspect. The article proposes the author's definition of the educational environment as a set of systems, technologies, means, relations, conditions, phenomena that interact with the educational process, contributing to the effective learning of the student and his formation as a person, as a professional specialist, as well as if you look into the academic context then a scientist. The article also points out the prospects of using cloud technologies in combination with a transdisciplinary approach. The introduction of modern technological and methodological approaches to the construction of the information and educational environment of the university blurs its boundaries, making it part of the global open information and educational space.
Determination of the Parameters of the Target Heterogeneous Medium During Centrifugal Arc Dispersion of Hard Alloys
Authors: Kolmakov K.M. , Zverovshchikov A.E. , Skhirtladze A.G. , Sokolov A.V.
Published: August 2021

The article considers the ballistic parameters of the trajectories of high-density alloy particles moving in a gaseous medium, accompanied by a phase transition of the of the particle material. A technique has been developed for determining the parameters of the target depending on the physical and mechanical characteristics of the materials of the captured particles and target layers. The possibility of maintaining the spheroidal shape of particles during the electric arc dispersion of high-density alloys has been determined.
Przestrzeń uwagi a współczesna inżynieria epistemiczna. O przyszłości uniwersytetu
Authors: Majewski Tomasz
Published: August 2021

Artykuł stanowi głos w sprawie współczesnej kondycji uniwersytetu oraz wprowadzanej od 2018 reformy szkolnictwa wyższego (tzw. reformy 2.0). Narzucana przez reformę kultura zarządzania, nakierowana na „naukową produktywność” i bibliometrię, pozostaje w konflikcie z etosem uniwersytetu, na jaki składa się dążenie do prawdy i kultura otwartej dyskusji, konstytutywna dla wspólnoty uczących się i uczonych. Autor argumentuje, że przywiązanie do tych wartości jest nie tylko kwestią tradycji, ale szczególnym zadaniem uniwersytetu w ramach współczesnej sfery publicznej, targanej przez aksjologiczne konflikty i rozpadającej się na szereg cyfrowych „plemion”. Uniwersytet jako instytucja rozwinął się wraz z kulturą aksjologicznego pluralizmu i racjonalnego wątpienia, którą sam wspierał. Wartości tych nie da się jednak utrzymać, jeśli w ramach akademickiej doksy przyjmie się założenia radykalnego relatywizmu poznawczego. „Antyrelatywistyczne minimum poznawcze” (Steven Lukes) i założenie względnej przekładalności języków, są niezbędne, jeśli uniwersytet ma pełnić nadal społecznie istotną funkcję wspierania dyspozycji krytycznych i uczenia samodzielności myślowej.
СРАВНИТЕЛЬНЫЙ АНАЛИЗ ПРЕДСТАВЛЕНИЙ О НЕРАВЕНСТВЕ ДОХОДОВ У ПОЖИЛЫХ В СТРАНАХ ЕС И РФ: ВЗАИМОСВЯЗЬ ФАКТИЧЕСКОГО И ВОСПРИНИМАЕМОГО НЕРАВЕНСТВА
Authors: Фролова Елена Александровна , Кашапова Эльмира Рамисовна , Маланина Вероника Анатольевна , Касати Фабио
Published: August 2021

В статье анализируется отношение населения к неравенству в старшем возрасте в европейских странах и России. Актуальность исследования обусловлена различиями в представлении о неравенстве и фактических его показателях, что оказывает влияние на востребованность государственных инструментов политики выравнивания, особенно старшим поколением. Целью исследования является оценка взаимосвязи фактического и воспринимаемого неравенства у старшего поколения в ЕС и РФ. Методы исследования: метод описательных статистик на выборках 8 волны Европейского социального исследования (ESS-2016) для возрастной группы 60+ лет в России и европейских странах. Для оценки фактического неравенства использовались данные World Inequality Database (2017) и данные ОЭСР (2018).  Для оценки взаимосвязи субъективных и фактических показателей неравенства применен корреляционно-регрессионный анализ. Результаты: комплексная оценка восприятия неравенства у пожилых людей в РФ близка к средним значениям по странам ЕС. Между тем существуют отличия от среднеевропейских значений по оценкам равенства возможностей и уровню толерантности к неравенству, обусловленному личными усилиями и возможностями. Проведенные оценки корреляции между фактическими и субъективными показателями неравенства показали, что существует обратная корреляция между оценками стандартов жизни и легитимностью талантов и усилий, коэффициентом Джини и показателем уровня жизни (GDP per capita). Показатели фактического неравенства демонстрируют тесную прямую связь с рисками бедности пожилых людей. Не выявлена статистически значимая взаимосвязь дифференциации доходов и комплексной оценки восприятия неравенства.
КАЧЕСТВО ГОРОДСКОЙ СРЕДЫ: ВОПРОСЫ ОРГАНИЗАЦИИ И СОЦИАЛИЗАЦИИ ОБЩЕСТВЕННОГО ПРОСТРАНСТВА
Authors: Артемова Ольга Васильевна , Савченко Анастасия Николаевна
Published: August 2021

Рассматриваются подходы к определению понятия «общественное пространство города». Представлена классификация видов общественных пространств, в том числе по новым признакам, введенным авторами (жизненный цикл человека, природно-климатические условия территории). Определено влияние общественного пространства города на социализацию местного сообщества; показано, что его содержательная наполняемость связана с вовлеченностью и активностью граждан. Выявлены проблемы в организации общественного пространства, предложен алгоритм действий по участию граждан в его преобразовании. Обоснована целесообразность использования проектного подхода к управлению городскими общественными пространствами. Цель исследования – рассмотреть, как общественное городское пространство, его состояние и особенности влияют на социализацию городского сообщества. Методы: пространственный подход к анализу городской среды, группировка и классификация видов общественных пространств, кейс-анализ практик организации общественных пространств. Результаты: уточнены место и роль общественных пространств города в развитии городской среды, определены признаки их социализации, предложена матрица на основе признаков классификации общественных территорий как инструмент организации общественных городских пространств для различных групп населения.
ПОДХОДЫ К ОРГАНИЗАЦИИ ПРОЕКТИРОВАНИЯ ГОРОДСКОЙ СРЕДЫ РАЗВИТИЯ: ГОРОД ДЛЯ ДЕТЕЙ
Authors: Зверев Алексей Игоревич , Алешина Елена Викторовна , Карачков Сергей Михайлович
Published: August 2021

Актуальность заключается в постановке проблемы анализа роли детей в проектировании ориентированной на них городской среды, в которой они развиваются и растут. Цель − исследование методов включения детей в процесс принятия решений по вопросам городского проектирования (как полноценных участников), в ходе которого формируется активная городская среда развития. Объектом выступает городская среда как совокупность условий жизнедеятельности детей. В качестве предметной области избрана возможность применения концепции и методологии партисипативного проектирования при формировании городской среды, дружественной детям. Выводы основаны на анализе ситуации вокруг создания городов, доброжелательных к ребенку, а также различных последствий, связанных с подчеркиванием значения интеграции, институционализации и инноваций. Интеграция подразумевает вовлечение детей в разработку проектов, ориентированных на них; институционализация – необходимость создания соответствующих структур и учреждений, которые удовлетворяют потребности детей на практике; инновация предполагает новые способы включения детей в сценарии городского развития как полноправных участников гражданских процессов. Другими словами, должна быть интеграция идей, действий и знаний, а также институционализация позитивного социального опыта и инновация эффективных способов удовлетворения потребностей ребенка. Авторы также пришли к заключению о том, что основная проблема среды современных городов заключается в ее недружелюбности по отношению к потребностям детского развития, низком образовательно-воспитательном потенциале, поскольку среда существенно ограничивает возможности активной деятельности детей.
Correlations of self-esteem with academic competencies and gender variations
Authors: Akoul Mustapha
Published: August 2021

In psychology, self-esteem is a concept that is largely used and analysed in the scientific literature. The goal of this study is to assess, with validated instruments, the corollary links between students’ academic results and the nature of perceptions of their skills and self-esteem. A total of 255 student volunteers with an average age of 21 years (91 female students and 164 male students) were included. We opted for two types of surveys: a questionnaire (SEQ) developed by Duclos, which measures self-esteem in five domains, and a questionnaire on the perception of competence on three domains of training. According to the results, even though students displayed a low sense of competence in the face of modest results during training, their self-esteem in the ‘family and social’ domains stayed stable with good scores. The study concludes that every person achieves high self-esteem when they achieve successes that are equal to or greater than their ambitions.
 
Keywords: Academic results, corollary links, gender, perception of competence, self-esteem.
Business Resilience: Managing the Business Uncertainty during High Times of Economic Slowdowns with Special Reference to COVID-19
Authors: Sharma Sunil
Published: August 2021

A pandemic breaks out and spreads to the geographies and regions of the entire world. Increased infections force governments to bring in lockdowns locking almost every activity. The restrictions are put on the movement of humans and goods. Supply lines are badly affected. The demands are not met due to disrupted supply chains at the beginning of such a breakout. And, consumer demand gets badly affected as we move through uncertain times while fighting and overcoming such unfortunate times. This paper examines the relevance of business resilience and management outlooks for ensuring sustainable business models coupled with community-oriented service models.
Émotions et sensibilité : pour une nouvelle perspective des études romanes
Authors: Swoboda Tomasz
Published: August 2021

To speak of a new functioning of “Romance philology”, the article reflects on the problems and challenges facing our discipline, resulting from the crisis in the humanities and their teaching. In this view, the perspective outlined by Martha Nussbaum and Michał Paweł Markowski shows that these problems and challenges are not only a risk but also an opportunity for “Romance philology” insofar as the idea of “teaching for democracy”, advocated by these two authors, corresponds perfectly to the actual content of our courses and research work, inextricably linked to the French tradition. They must, however, take a new form to circulate in the media reality of today.
La philologie romane est-elle capable de relever les défis du présent?
Authors: Abramowicz Maciej
Published: August 2021

The article comprises two sections: in Section One I sketch out the history and the evolution of French philology, understood both as an academic discipline and as an academic/administrative unit within Polish universities, officially known as Departments of French (Philology). In Section Two I reflect on my personal experience of that evolution, as it has affected my professional choices and academic career. Both meanings of “French philology” (discipline and institution) are rooted in German academic tradition to which the entire system of Polish humanities is indebted. Until the 1990s, French philology was synonymous with French studies, understood as the teaching and the academic study of French language and literature. Like other humanities departments in Poland, French philology departments inevitably functioned under the pressure of current political forces. Yet, French philologists in Poland never lost touch with the world’s evolving humanities or the changing scholarly paradigms. Following the radical political transformation of 1989, traditional French philology in Po-land opened up to a whole new range of scholarly fields (literatures and cultures of francophone countries), theories (postmodern and postcolonial studies), and approaches (interdisciplinary scho-larship). Thus Polish romanists have joined the international scholarly community. In the article, I document these processes, reflecting on my own university career: I started off as a traditional scholar doing research in the literature of French Middle Ages, then moved on to studying Canadian and American Francophone cultures, to eventually become involved in interdisciplinary studies at the Faculty of “Artes Liberales” at the University of Warsaw.
Effectiveness of using subjects in the rhythmic gymnastics classroom in preschool educational institutions
Authors: Kuzmenko Marianna V. , Boldyreva Vera B.
Published: August 2021

In the physical education of preschool children, the development of basic movements depends on the manifestations of motor qualities – speed, strength, endurance, which to a greater extent expand the functional capabilities of the child’s body. With insufficient development of physical qualities, teaching physical exercises is difficult, and in some cases even completely impossible. In this regard, in our study, we consider the effectiveness of using subjects in rhythmic gymnastics classes with preschool educational institutions. The research is devoted to physical education of preschoolers by means of rhythmic gymnastics. The work gives the characteristics of the imaginative and playing rhythmic gymnastics. The methodic features of using subjects in rhythmic gymnastics classes in preschool educational institutions are listed. We present the results of a comparative pedagogical experiment, the purpose of which is to reveal the effectiveness of the use of imaginative and playing rhythmic gymnastics exercises with gymnastic sticks in the classroom with children aged 6–7 years. The work shows the importance of rhythmic gymnastics, its influence on the development of physical qualities in preschoolers.
Features of project-oriented and game-based student learning using the modeling environment SketchUp
Authors: Sidlyar Mihail Y. , Kovaleva Olga A.
Published: August 2021

We discuss the principles of project work of students in a higher educational institution. Examples of teaching students in information specialties are given on the example of the basics of programming and design in the system of higher education in Europe and North America. Roles of distance and traditional education and the choice of individual trajectories in this learning are shown. Particular attention is paid to the description of the game team forms of learning when working in environments of three-dimensional modeling and prototyping. The different roles of the teacher at each stage in all game projects for the construction of complex design details are described. We show examples of the developed design work at the Derzhavin Tambov State University when working with 3D graphics and reducing it to three-dimensional printing, as well as embedding the results of work in sites and blogs and other Web 2.0 resources. The key stages of the team games are presented, including the selection of the team captain using the R. Belbin psychological role test and the professional qualities of students. Such work can be successfully scaled up to all areas of university preparation, as well as to profile areas for students of secondary specialized institutions. It is concluded that the knowledge of three-dimensional modeling and prototyping is consolidated in the course of the final game team work on the construction of a complex structure or a series of architectural structures
Development of communicative competence of high school students in the system of supplementary education
Authors: Bedina Vera Y. , Melekhova Viola M. , Pozdnyakova Natalya V.
Published: August 2021

We describe communicative competence as one of the key competencies of modern high school students, which is a resource for effective future professional realization. The research revealed the content of communicative competence, which is determined by more complex com-munication processes and network interactions. The stages, components and conditions for the development of communicative competence are identified, the levels of development are determined, psychological and pedagogical techniques and technologies for the development of communicative competence are proposed, and a supplementary general educational and developmental program of a socio-pedagogical direction “School of Successful Communication” is developed. The results of the research can be used to organize the development of communicative competence in the system of supplementary education. The main feature of the program is its variability and possibility of realization in both full-time and distance format.
Principles of designing bespoke corporate foreign language courses
Authors: Potapova Elena N.
Published: August 2021

We define methodic principles of designing corporate language learning programmes thoroughly considering needs and possibilities of corporate language learners. These principles are based on the analysis of psychological and pedagogical fundamentals of teaching corporate students and foreign language teaching and aimed at increasing efficiency of corporate language courses. They are defined as follows: 1) basing teaching aims on learners’ needs and language teaching standards; 2) applying interdisciplinary approach to selection of language, content and methods; 3) adapting discourse to learners’ professional needs; 4) selecting and arranging language in a logical sequence; 5) applying skills-based approach to selection of learning content and technologies; 6) arranging learning content and materials into modules; 7) integrating various knowledge, skills and learning methods; 8) considering psychological and pedagogical fundamen-tals of teaching corporate students; 9) considering possible difficulties of corporate language learning context. These principles reflect needs and features of corporate students and can be used by developers of corporate language courses.
Prospects for the evolution of a foreign language textbook for a non-linguistic university
Authors: Evdokimova Mary G.
Published: August 2021

We discuss issues related to rethinking the general status of a textbook as the main aid of teaching, its place and role in the system of teaching a foreign language (FL) at non-linguistic universities. A retrospective analysis of the main trends in the development of the concept of the foreign language textbook, the history of the transformation of its forms, functions and signific-ance is given. The increasing role of modern multimedia textbooks and integrated digital linguistic educational environments as an alternative to the traditional textbook is shown. The need for the textbook authors to take into account modern scientific and methodic ideas about the target, con-tent and procedural aspects of foreign language education is proved. The increasing relevance of intra-university publications is shown. An integrative methodology is proposed as a guideline for the development of the concept of a modern foreign language textbook at a non-linguistic university. The productivity of integrating profession-oriented foreign language training, the competence-based, communicative and intercultural approaches is substantiated. The contextual approach is considered as a way to actualize the profession-oriented vector of teaching foreign language at a non-linguistic university. It is shown that the implementation of the contextual approach requires that departments of foreign languages at non-linguistic universities of various profiles should specify the content of teaching a foreign language, in order to identify and clarify the features of professional communication of the specialists of a particular profile. In this case, it is necessary to take into account not only purely scientific and technical/ontological (subject context), but social, communicative, organizational aspects of communication (social context) as well. Summing up the results of the undertaken analysis, the author formulates the requirements for the content and structure of a modern textbook. A forecast is presented regarding the most probable directions of evolution of a foreign language textbook for non-linguistic universities.
About new properties of recurrent motions and minimal sets of dynamical systems
Authors: Afanas’ev Aleksandr P. , Dzyuba Sergei M.
Published: August 2021

The article presents a new property of recurrent motions of dynamical systems. Within a compact metric space, this property establishes the relation between motions of general type and recurrent motions. Besides, this property establishes rather simple behaviour of recurrent motions, thus naturally corroborating the classical definition given in the monograph [V.V. Nemytskii, V.V. Stepanov. Qualitative Theory of Differential Equations. URSS Publ., Moscow, 2004 (In Russian)].
Actually, the above-stated new property of recurrent motions was announced, for the first time, in the earlier article by the same authors [A.P. Afanas’ev, S. M. Dzyuba. On recurrent trajectories, minimal sets, and quasiperoidic motions of dynamical systems // Differential Equations. 2005, v. 41, № 11, p. 1544–1549]. The very same article provides a short proof for the corresponding theorem. The proof in question turned out to be too schematic. Moreover, it (the proof) includes a range of obvious gaps.
Some time ago it was found that, on the basis of this new property, it is possible to show that within a compact metric space α- and ω-limit sets of each and every motion are minimal. Therefore, within a compact metric space each and every motion, which is positively (negatively) stable in the sense of Poisson, is recurrent.
Those results are of obvious significance. They clearly show the reason why, at present, there are no criteria for existence of non-recurrent motions stable in the sense of Poisson. Moreover, those results show the reason why the existing attempts of creating non-recurrent motions, stable in the sense of Poisson, on compact closed manifolds turned out to be futile. At least, there are no examples of such motions.
The key point of the new property of minimal sets is the stated new property of recurrent motions. That is why here, in our present article, we provide a full and detailed proof for that latter property.
For the first time, the results of the present study were reported on the 28th of January, 2020 at a seminar of Dobrushin Mathematic Laboratory at the Institute for Information Transmission Problems named after A. A. Kharkevich of the Russian Academy of Sciences.
On permutable strongly 2-maximal and strongly 3-maximal subgroups
Authors: Gorbatova Yuliya V.
Published: August 2021

We describe the structure of finite solvable non-nilpotent groups in which every two strongly n-maximal subgroups are permutable (n = 2; 3). In particular, it is shown for a solvable non-nilpotent group G that any two strongly 2-maximal subgroups are permutable if and only if G is a Schmidt group with Abelian Sylow subgroups. We also prove the equivalence of the structure of non-nilpotent solvable groups with permutable 3-maximal subgroups and with permutable strongly 3-maximal subgroups. The last result allows us to classify all finite solvable groups with permutable strongly 3-maximal subgroups, and we describe 14 classes of groups with this property. The obtained results also prove the nilpotency of a finite solvable group with permutable strongly n -maximal subgroups if the number of prime divisors of the order of this group strictly exceeds n (n=2; 3).
Two-sided estimates for solutions of boundary value problems for implicit differential equations
Authors: Benarab Sarra
Published: August 2021

We consider a two-point (including periodic) boundary value problem for the following system of differential equations that are not resolved with respect to the derivative of the desired function:
f_i (t,x,x ̇,(x_i ) ̇ )=0,i= (1,n) ̅.
Here, for any i= (1,n) ̅ the function f_i:[0,1]×R^n×R^n×R→R is measurable in the first argument, continuous in the last argument, right-continuous, and satisfies the special condition of monotonicity in each component of the second and third arguments. Assertions about the existence and two-sided estimates of solutions (of the type of Chaplygin’s theorem on differential inequality) are obtained. Conditions for the existence of the largest and the smallest (with respect to a special order) solution are also obtained. The study is based on results on abstract equations with mappings acting from a partially ordered space to an arbitrary set (see [S. Benarab, Z.T. Zhukovskaya, E.S. Zhukovskiy, S.E. Zhukovskiy. On functional and differential inequalities and their applications to control problems // Differential Equations, 2020, 56:11, 1440–1451]).
Modeliranje višinske in debelinske rasti dominantnih dreves ter ocenjevanje indeksov produkcijske sposobnosti gozdnih rastišč
Authors: Bončina Andrej , Trifković Vasilije , Bončina Živa
Published: August 2021

Modeling the height and diameter growth of trees is an important part of forest management. Growth models provide the basis for determining the thinning regime, target tree dimensions and optimal proportions of developmental phases of forest stands. We developed individual height growth models for dominant Norway spruce (Picea abies (L.) Karst) and European beech (Fagus sylvatica L.) in two forest types (sessile oak-European beech forests and pre-Alpine silver fir-European beech forests). Based on the models, the site productivity index (SPI), defined as the dominant tree height at a diameter of 45 cm, was determined for spruce and beech in both forest types. Based on the diameter increment of the dominant trees, the age of trees in regard to their diameter was calculated, which was the basis for Height-Age modeling. The site productivity index (SPI) of spruce in sessile oak-beech forests and pre-Alpine silver fir-European beech forests is higher than that of beech: 31.3 and 29.7 vs 28.7 and 27.9, respectively. Estimated site indices (SI; dominant tree height at the age of 100 years) in sessile oak- European beech forests and pre-Alpine silver fir-European beech forests were 33.4 and 32.0 for spruce, and 29.0 and 27.0 for beech, respectively. Using the described procedure, it is possible to determine indices of site productivity of spruce and beech (SI and SPI) in the selected forest habitat types. Testing the procedure in other forest types and for other tree species is suggested.
Androgens, QT, Sex and Ventricular Repolarization: A Double-Edged Sword
Authors: Moey Melissa Y.Y. , Wilkin Marie , Gandjbakhch Estelle , Bachelot Anne , Abbar Baptiste , Pinna Bruno , Simon Jean-Marc , Funck-Brentano Christian , Salem Joe-Elie
Published: August 2021

The prevalence and incidence of cardiac pro-arrhythmic disorders are often influenced by sex due to specific effects on the QT interval. Androgens shorten QT, which may be protective against acquired long QT syndromes and their related arrhythmias in men such as torsade de pointes (TdP). On the other hand, androgens can potentiate Brugada and early repolarization syndromes, which are most prevalent in men. In this case series, we highlight four male patients with aborted SCD in the setting of abnormal testosterone status; two patients with TdP in a setting of testosterone deprivation (of which one drug-induced) and 2 patients with ventricular fibrillation associated with exogenous androgenic booster (Tribulus terrestris) intake. From this case series, we review the current available literature of the effects of androgen as a double-edged sword on the QTc interval and emphasize the importance of QTc monitoring in this subset of patients.
Notes on education in pandemic times and remote work: what place do we speak about?
Authors: Barreto Denise Aparecida Brito , Guedes Neide Cavalcante
Published: August 2021

Neste artigo produzimos reflexões sobre o momento atual que a humanidade enfrenta diante da ameaça provocada pela Covid 19, especificamente para o campo da educação, considerando a necessidade do isolamento social e as reais consequências no trabalho do professor, visto que a interação com o aluno é essencial nesse processo de ensinar-aprender. Para nossa compreensão utilizamos entrevistas, artigos de periódicos, lives como suportes para identificar os impactos provocados pela pandemia bem como possíveis alternativas a serem adotadas no pós-pandemia, gerando, assim, uma compreensão desse cenário e a possibilidade da educação reencontrar o seu lugar. Nossa intenção não é apresentar soluções, mas compreender os acontecimentos e construir saídas alternativas. Este artigo revelou que apesar de todos os problemas enfrentados, nesse momento, nos fortalecemos para um novo modelo educacional e uma nova sociedade que surgirão a partir desse contexto.
Pengaruh Penerapan Model Pembelajaran Kooperatif Tipe TAI (Team Assisted Individualization) Terhadap Hasil Belajar Siswa Kelas X MIA pada Pokok Bahasan Larutan Elektrolit dan Non Elektrolit
Authors: Monica Caroline , Hadinugrahaningsih Tritiyatma , Darwis Darsef
Published: August 2021

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran kooperatif tipe Team Assisted Individualization terhadap hasil belajar siswa kelas X MIA pada pokok bahasan larutan elektrolit dan non elektrolit. Desain penelitian yang digunakan adalah posttest-only nonequivalent control group. Penelitian ini dilakukan di kelas X MIA, SMA Negeri 27 Jakarta pada tahun ajaran 2018/2019. Pengambilan sampel dalam penelitian ini menggunakan teknik purposive sampling, sehingga diperoleh kelas X MIA 1 sebagai kelas eksperimen dan kelas X MIA 2 sebagai kelas kontrol. Model pembelajaran yang digunakan pada kelas eksperimen adalah model pembelajaran Team Assisted Individualization, sedangkan pada kelas kontrol adalah Pembelajaran Aktif. Hasil penelitian menunjukkan adanya perbedaan hasil belajar siswa di kelas eksperimen dan kelas kontrol (thitung = 1,995; ttabel = 1,668, thitung > ttabel). Sehingga dapat disimpulkan bahwa kegiatan pembelajaran dengan menggunakan model pembelajaran Team Assisted Individualization memberikan pengaruh positif terhadap hasil belajar siswa pada pokok bahasan larutan elektrolit dan non elektrolit.
Identifikasi Pengetahuan dan Kompetensi Sains Siswa Berdasarkan Socio-Scientific Issues (SSI) pada Materi Sistem Koloid
Authors: Nurmilawati Siti , Agung Salamah , Murniati Dewi
Published: August 2021

Penelitian ini bertujuan untuk mengetahui pengetahuan dan kompetensi sains siswa berdasarkan socio-scientific issues (SSI) pada materi sistem koloid. Sebanyak 313 siswa kelas XII di empat sekolah yang mewakili SMAN se Kota Tangerang Selatan berpartisipasi dalam penelitian ini. Pengambilan sampel dilakukan dengan menggunakan teknik cluster random sampling. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kuantitatif dengan penelitian survey. Adapun instrumen yang digunakan adalah 22 item soal uraian. Data kuantitafif yang diperoleh dianalisis dengan penskoran dan diubah menjadi persentase. Berdasarkan hasil penelitian, menunjukkan bahwa kemampuan literasi sains siswa pada aspek pengetahuan dan kompetensi sains berada pada kategori cukup baik dengan persentase ketercapaian yang diperoleh berturut-turut sebesar 58,39% dan 57,89%.

Kata kunci: Literasi, Siswa, Socio-Scientific Issues, Sistem Koloid
Rock Typing Based on Wetting-Phase Relative Permeability Data and Critical Pore Sizes
Authors: Yokeley Brandon A. , Ghanbarian Behzad , Sahimi Muhammad
Published: August 2021

Rock typing based on mineralogical, hydraulic, or petrophysical similarities is important to reservoir characterization and simulation. In the literature, classifying rocks using single-phase data has been widely studied. Most methods use porosity and permeability measurements to identify rocks with similar characteristic pore sizes. In this study, we invoke concepts from critical-path analysis (CPA) and propose a new rock-typing method on the basis of two-phase flow data, such as water relative permeability krw. We classify rocks based on their similarities in the critical pore radius rc at the same effective water saturation Se. For this purpose, we first convert the Sw−krw plots to Se−rc curves and then apply a curve clustering method to identify similar rocks. To evaluate the proposed approach, we simulated flow in pore networks with many different pore-scale properties. By varying the pore-throat size distribution, contact angle, pore coordination number, pore-shape distribution, and clay content, we generated a wide range of pore networks. Overall, two-phase flow in 240 pore networks were simulated. In addition to synthetic pore networks, pore networks were generated based on properties of Berea, Mt. Simon, and Fontainebleau sandstones. By analyzing the single-phase simulation results, we identified 8 and 15 rock types using the porosity-formation factor and reciprocal formation factor-permeability data, respectively. However, using the two-phase data, we detect 12 rock groups.
Foam Flow in Different Pore Systems—Part 1: The Roles of Pore Attributes and Their Variation on Trapping and Apparent Viscosity of Foam
Authors: Adebayo Abdulrauf Rasheed
Published: August 2021

Lateral propagation of foam in heterogeneous reservoirs, where pore geometries vary laterally, depends on the roles of pore geometries on the foam properties. In this paper, the pore attributes of 12 different rock samples were characterized in terms of porosity, permeability, pore shape, pore size, throat size, aspect ratio, coordination number, and log mean of surface relaxation times (T2LM). These were measured from gas porosimeter and permeameter, X-ray microcomputed tomography (CT)-based pore-network models, thin-section photomicrographs, and nuclear magnetic resonance (NMR) surface relaxometry. The samples have a wide range of porosity: 12 to 29%; permeability: 1 to 5,000 md; average pore size: 3.7 to 9 µm; average throat size: 2.4 to 8 µm; average aspect ratio: 1 to 1.7; average coordination number: 2.6 to 5.2; and T2LM: 9.4 to 740 ms. Nitrogen foam flow experiments (without oil) were then conducted on each rock sample using a specialized coreflood apparatus. A graphical analysis of the coreflood data was used to estimate the total saturation of trapped foam (10 to 66%), flowing foam (3 to 14%), and apparent viscosity of foam (3.2 to 73 cp). Trapped foam saturation and apparent viscosity values were then correlated with each of the measured pore attributes. The results revealed that all pore attributes, except aspect ratio, have positive correlations with foam trapping and apparent viscosity. The best correlation with trapped foam saturation was obtained when the most influential pore attributes (pore size, throat size, aspect ratio, and coordination number) were combined into a single mathematical function. Foam apparent viscosity also appears to be mostly influenced by trapped foam saturation, permeability, and coordination number of pore systems. Trapping is also likely enhanced by the presence of fenestral or channel pores. Furthermore, the shape and angularity of pores seem to facilitate snap-off and trapping of foam, because rock samples with angular pores trapped the highest foam saturation compared with other samples with rounded and subrounded pores. It was also shown that the correlation between trapped foam saturation (and foam apparent viscosity) and the absolute permeability of porous media may reverse at some high-permeability values (greater than several darcies), when one or both of the following conditions exist: (1) The aspect ratio of a lower-permeability porous medium is lower than that of a higher-permeability porous medium, and (2) the coordination number of a lower-permeability porous medium is higher than that of a higher-permeability porous medium. Finally, T2LM showed a good correlation with foam trapping, making NMR logging a prospective tool for pre-evaluating foam performance in targeted reservoir sections.
Influence of Non-commercial Fuel Supply Systems on Small Engine SI Exhaust Emissions in Terms of European Approval Regulations
Authors: Warguła Łukasz , Lijewski Piotr , Kukla Mateusz
Published: August 2021

The development and operation of road infrastructure requires machines and equipment driven by low-powered internal combustion engines. The authors of this paper examined five small spark-ignition engines. They used the most popular commercial design on the market, the Lifan GX 390, with a carburettor power system, and another commercial power unit with the most innovative power system, the Honda iGX 390, characterised by an electronically controlled carburettor flap. The remaining three tested constructions are proprietary solutions modernising the design of the Lifan GX 390 engine. The first is the application of an electronic injection and ignition system powered by gasoline, the second and third are systems powered by alternative fuels. Emissions tests were conducted under identical operating conditions on an engine dynamometer coinciding with European Union guidelines (Regulation 2016/1628/EU).The results of the tests showed that innovative solutions in most cases reduced CO,CO2, and HC emissions while increasing NOx compounds.
Gravity cells as a necessary link in string theory. The formula for the gravitational constant, the formula for the mass of the electron, the formula for the minimum distance of the gravitational interaction. The coincidence of the results obtained by the formulas and the experimental data.
Authors: Chernov Andrey
Published: August 2021

In this study, a new concept is introduced into physics - gravitational cells. The gravitational cell hypothesis was organically integrated into string theory. As a result, using the Schwarzschild radius formula and the Coulomb formula, a gravitational formula in the region of black holes was obtained on the basis of two fundamental constants, and its exact value was determined. The value of the "usual" gravitational constant was also confirmed and the mass of the gravitational cell was obtained. The introduction of the gravitational cell hypothesis into string theory made it possible to apply Planck's constant to gravitational interaction. As a result, a formula for the energy of a gravitational quantum and a formula for the vibrational velocity of a gravitational string were obtained. On this basis, the formula for the mass of the electron was obtained and its value was calculated, which coincided with the experimental mass of the electron. According to the formula for the vibrational velocity of the gravitational string, the formula for the minimum distance of the gravitational interaction was obtained and this distance was calculated. This minimum distance of the gravitational interaction with absolute accuracy coincided with the known experimental data obtained when determining the Casimir effect (force).
A Quantitative Study for Evaluating Risk Factors in Routine Perioperative Assessment During Elective Bariatric Surgery Regarding the Development of Postoperative Delirium
Authors: Heymann Anja , Susewind Martin , Schneider Nathalie Michelle , Steffens Kevin , Spies Claudia , Pohrt Anne , Mueller Anika
Published: August 2021

Background: Postoperative delirium (POD) is associated with long term physical and cognitive impairment. Identification of eligible biomarkers is desirable. In this subanalysis of data collected during the prospective observational CESARO study we investigate the relevance of preoperative organ dysfunctions on the onset of POD.Methods: N = 98 Patients undergoing laparoscopic bariatric surgery were screened for POD using the Nursing Delirium Screening Scale (Nu-DESC). All preoperative assessed routine data including laboratory results were investigated for association with the development of POD.Results: Twenty percent of patients had POD of short duration. Obstructive Sleep Apnea (OSAS) as well as elevated BUN and low HKT were identified as predictors.Conclusion: POD incidence was comparable to other studies nonetheless our patients had only marginal risk factors. Here identified parameters might be another piece to the answer of the question: which are correlating biomarkers to the pathophysiologic process of delirium onset?
Analysis of Temperature Extremes over India Using Sheffield & IMD Dataset
Authors: Sharma Anurag , Swami Deepak , Joshi Nitin
Published: August 2021

Temperature extremes significantly contribute to climate change; therefore, the analysis of temperature extremes is essential in detecting and attributing climate change. The present study aims to analyze the spatiotemporal variations in the temperature extremes over India, using 0.25° × 0.25° high-resolution Sheffield temperature gridded dataset for a period of 62 years (1951–2012). In addition, the spatial distribution, statistical relation and trend pattern of Sheffield’s temperature dataset is compared with 1°×1°, gridded temperature dataset of Indian Meteorological Department (IMD). The mean of temperature indices show nearly similar spatial distribution in both datasets; however trend pattern of extreme indices show significant differences over different homogeneous temperature regions of India. There is mostly disagreement between the two datasets, for trend patterns of extreme indices at different homogeneous regions, but few grids show reasonable agreement for similar trend pattern. Both datasets reported a significant decreasing trend in TX10p (amount of cool days) and TN10p (amount of cold nights) at maximum grids for the 1951–2012 period. In addition, a significant increasing trend in TX90p (amount of hot days) and WSDI (warm spell duration indicator) at maximum grids during post-1981 and 1951–2012 is observed in both datasets. A comprehensive insight into different characteristics (spatial distribution, statistical relation and trend patterns) of Sheffield’s temperature dataset will help in understanding the applicability of Sheffield temperature dataset for climate modeling and prediction studies over India.
Genetic Algorithm Based Improved ESTAR Nonlinear Models for Modelling Sunspot Numbers and Global Temperatures
Authors: Gurung Bishal , Lama Achal , Rathod Santosha , Singh K N
Published: August 2021

Smooth Transition Autoregressive (STAR) models are employed to describe cyclical data. As estimation of parameters of STAR using nonlinear methods was time-consuming, Genetic algorithm (GA), a powerful optimization procedure was applied for the same. Further, optimal one step and two step ahead forecasts along with their forecast error variances are derived theoretically for fitted STAR model using conditional expectations. Given the importance of the issue of global warming, the current paper aims to model the sunspot numbers and global mean temperatures. Further, appropriate tests are carried out to see if the model employed is appropriate for the datasets.
Removal of Hydrogen Sulfide in Biogas From Wastewater Treatment Sludge by Real Scale Biotrickling Filtration Desulfurization Process
Authors: Arıman Sema , Koyuncu Serdar
Published: August 2021

High sulfur content in excess sludge impacts the production of biomethane during anaerobic digestion, mean-while leads to hydrogen sulfide (H2S) formation in biogas. This study aims to reveal the efficiency of the real-scale Biotrickling Filtration Process (BTF) in the removal of H2S in the biogas formed in the anaerobic digester. The biogas was produced by stabilization of the treatment sludges formed in the processes of Urban Wastewater Treatment Plant with mesophilic anaerobic sludge digesters. It was determined that the anaerobic stabilization unit of the treatment plant was operated efficiently and the biogas with a high flow (18,123-21,383 m3/day) was formed during the operation of the plant. The H2S concentration in the biogas at the inlet of the BTF was 3,632 ppmv on average (2,900-4,400 ppmv) and 16 ppmv at the outlet. The elimination capacity of the system reached a maximum of 52.71 gH2S m-3h-1. As a result, a real scale BTF unit was found to provide a sufficient removal efficiency (97.84-99.90%) for H2S in the biogas.