bluuebunny/crossref_metadata_2025 huggingface dataset:
Generalised Wang's Graph for Morse Flows on Surfaces
Authors: Kruglov Vladislav E. , Rekshinskiy Mihail S.
Published: October 2023

This paper is devoted to gradient-like flows on surfaces, which are Morse-Smale flows without limit cycles, and to their topological classification up to topological conjugacy. Such flows, otherwise called Morse flows, have been repeatedly classified by means of various topological invariants. One of these invariants is the two-colour Wang's graph, which is valid only for gradient-like flows on orientable surfaces. The purpose of this study was to generalize the Wang's graph to the case of arbitrary closed surfaces. A new invariant, the generalized Wang's graph, is introduced in the paper. Using this generalization, a topological classification of gradient-like flows on arbitrary surfaces is obtained, including a non-orientable case. The realization of the generalized Wang's graph by the standard Morse flow on the surface is performed as well. To obtain all the results, constructive method is used: to prove the classification theorem, a homeomorphism is constructed that maps regions with the same behavior of trajectories into each other, and the graph allows to establish the correct location of such regions relative to each other. The realization theorem is also proven constructively: basing on the graph being considered, standard flow is created that is topologically conjugated to every flow such that the graph corresponds to this flow. Thus, a complete topological classification of Morse flows on surfaces is constructed by means of an invariant, which in some respects surpasses in simplicity and practicality both the directed Peixoto graph and the three-colour Oshemkov-Sharko graph.
Mathematical Models of Joint Calculation of Electric and Thermal Fields in Electrochemical Systems (in Electrolytes)
Authors: Lubyshev Fedor V. , Bolotnov Anatoly M. , Fairuzov Mahmut E.
Published: October 2023

This paper studies mathematical models for a joint calculation of electric and thermal fields in electrochemical systems (in electrolytes). As is known, passing of electric current through an electrolyte is accompanied by release of Joule heat. The consequence of temperature redistribution in an electrochemical system is a change in the main physical and chemical parameters: viscosity and density of the conductive medium, specific electrical and thermal conductivity, heat transfer coefficient, etc. Taking into account in mathematical models the mutual influence of thermal and electric fields is of particular importance in the technologies of electrolysis of non-ferrous metals (primarily in the industrial production of aluminum) that is accompanied by high-temperature conditions and intensive electrical heat and mass transfer. The processes of electrolytic-plasma removal of coatings, polishing of parts and plasma-electrolytic oxidation attract special attention from the machine-building industry due to the possibility of qualitative improvement of surface properties. In the article correctness of statements of nonlinear models are investigated. The question of unique solvability of the system is explored and a priori estimates of the generalized solution in the Sobolev norms are established. Also, the system of nonlinear partial derivative equations considered in the paper can describe a mathematical model for the joint calculation of electric and thermal fields in solid conductors of electricity and heat.
METHODOLOGY FOR EVALUATION AND ANALYSIS OF THE FUNCTIONAL STATE OF ATHLETES
Authors: Kansazova V.
Published: October 2023

During the training of athletes for different sports, distinct workloads are planned, corresponding to the training and the goals set by the coach and his team for achieving high sports results. The overall preparation of the athletes requires the use of different methods for the evaluation and analysis of the functional state of the main systems of their bodies. An important factor for ensuring the effectiveness in the management of the training process is the objective, complete and timely information that can be obtained using a package of established standardized indicators procured according to specific methodology with strict order and sequence. The examined methodology aims to present the necessary tools and techniques for conducting a functional analysis of the state of athletes. The stages, activities, and methods for performing the analysis are described in detail. Several pilot functional analyses are presented, through which the methodology and its application were tested.
An Analysis of English Learning at Kebangsaan Pos Bersih School Malaysia
Authors: Suryadien Denda , Ainissyifa Hilda , Fatonah Nurul , Balqis Binti Khairulnizam Nur
Published: October 2023

The purpose of writing this article is to analyze the main problems faced by students and teachers in learning English at the Sekolah Kebangsaan Pos Bersih elementary school in Malaysia. Assess the effectiveness of learning methods and provide recommendations for English learning strategies. This study used a descriptive qualitative methodology with data collection using interviews, moderate participant observation, documentation and literature review. Data from interviews, observations, documentation and literature reviews will be contrasted to identify consistency and differences in teacher practices in providing language learning infrastructure through comparative analysis, research findings will be strengthened and provide a more holistic picture of the problem under study. The results of the discussion are that the researcher found the problems of students in learning English at the SK Pos Bersih 1) motivation and interest 2) limited understanding of English at the beginning 3) Lack of use of English in daily life 4) lack of confidence when communicating as well as for teachers 1) emphasis on standardized tests 2) High Workload. Then the writing of designing strategic suggestions with literature reviews includes 1) encouraging active student involvement 2) Integration of Educational Technology 3) project-based learning 4) student-centered learning. Keywords: english, low school, learning quality
The Influence of Religiosity and Halal Labeling on Purchase Intention of Non-Food Halal Products
Authors: Susilawati Cucu , Joharudin Agus , Abduh Muhamad , Sonjaya Adang
Published: October 2023

The obligation to certify halal products in circulation is limited to food, beverages, goods, or services. This study determined the effect of halal labeling on the purchase intention of Indonesian Muslim communities in non-food halal products. Even though laws regulate halal products in circulation, not all people know about halal products, especially non-food products. This research method used a mixed method, which combined quantitative and qualitative methods. The design was a two-phase mixed method, with data collection techniques based on explanatory strategies. The results were analyzed with sequential data; quantitative was used as the basis for collecting qualitative data. The results of this study indicated there was a partially accepted influence of religiosity on Purchase Intention. Religiosity positively and significantly affected the Purchase Intention of non-food halal products. Furthermore, the hypothesis that said there was influence of the Perception of the Halal Label on Purchase Intention was partially accepted. Thus, the Perception of the Halal Label positively and significantly affected the Purchase Intention of non-food halal products. The significant level that produced 0.000, smaller than the specified significance level, was 0.05, so the significance level of Religiosity and Perception of Halal Labels was significant to Purchase Intention. It could also be seen that the f-count value was 118.210 with an f-table value of 3.1504, so the f-count > f-table or 118.210 > 3.1504, which means Religiosity and Perception of the Halal Label simultaneously affect Purchase Intention. In conclusion, Religiosity and Perception of the Halal Label simultaneously affect Purchase Intention on Non-Food Halal Products.
Unveiling the Signature of Halal Leather: A Comparative Study of Surface Morphology, Functional Groups and Thermal Characteristics
Authors: Syabani Muh Wahyu , Iswahyuni Iswahyuni , Warmiati Warmiati , Prayitno Kutut Aji , Saraswati Henny , Hernandha Rahmandhika Firdauzha Hary
Published: October 2023

The halal certification of products holds significant importance for Muslim consumers, necessitating the development of reliable techniques for identifying leather products made from raw materials. This study employed rapid and accurate analytical methods to distinguish between cowhide, pigskin, and artificial leather. A combination of scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) was used to assess the variations in collagen fiber structures and thermal stability among the leather samples. The findings revealed that morphological surface analysis, including grain patterns and pores, facilitated swift differentiation between different leather types. Pigskins exhibit three-hole patterns on their morphological surface compared to cowhide, with random pores and tighter grain patterns, whereas artificial leather lacks natural grain patterns and pores altogether. While FTIR spectra exhibited similarities between cowhide and pigskin leathers, variations in vibration intensity enabled effective discrimination. Artificial leather, particularly PVC-based materials, displayed distinct spectra, allowing FTIR spectroscopy to effectively discern between halal and non-halal leather. Cowhide possesses strong and sharp vibration at wavenumber 1736, 1277, and 817 cm-1 compared to pigskin, which has stronger vibration at 1534 cm-1. Meanwhile, PVC-based artificial leather exhibited stretching at 1723 and 744 cm-1 wavenumbers. DSC analysis proved valuable in differentiating between genuine and artificial leather based on unique peaks and thermal behavior. These three techniques provide reliable means to determine the raw material origins of leather products.
CALCULATION OF THE STRESS-STRAIN STATE OF THE NOSE STAND OF AN AIRCRAFT LANDING GEAR WITH A RADIUS TRANSITION BY THICKNESS WHEN BUILDING A LOCAL MODEL
Authors: Levytska T. , Pozhuieva I. , Mytryashkin O. , Manzhos O.
Published: October 2023

Purpose. Study of the stress-strain state and fatigue life of the local zone of the compartment structure, namely, the radial transition between the wall thicknesses from the regular zone to the place of thickening in the connection zone with the reinforcement element. The main task of this work is to estimate the level of stress in the zone of the radial transition using the numerical solution of the problem, for the further assessment of the resource of the structure.

Research methods. Construction of a local model and numerical calculations of the stress-strain state of the considered structure using PATRAN/NASTRAN software complexes. Using the Mesh Seed tool to mark the position of nodes on the edges of surfaces. In addition to flat elements, bar elements were used in the model to simulate rivets. For the numerical solution of the presented problem, the nonlinear solver 106 - Nonlinear Static was used.

Results. A numerical calculation of the stress-strain state of the nose strut of the aircraft landing gear with a radial transition in thickness during local modeling was carried out. Visualization of linear displacement and fields of normal stresses, as well as graphs of normal stresses on the lower and upper surface of the wall, and the dependence of the values of normal stresses in the radial transition zone were obtained. The deflection of the plate between the reinforcement element is plotted and the maximum deflection in the middle of the span is obtained.

Scientific novelty. Application of the method of calculating the stress-strain state of complex structures of aviation equipment elements using computer software complexes in the conditions of modern development of aviation science and technology.

Practical value. The obtained calculations made it possible to estimate the resource of the local area of the structure - the radius transition between different wall thicknesses. The results of the analysis and the method of numerical calculation of the stress-strain state of the considered model can be used for further assessment of the resource and static strength of the structure of the aircraft landing gear compartment.
RESEARCH OF THE INFLUENCE OF THE NOZZLE HOLES OF INJEC-TOR ON THE CHARACTERISTICS OF THE U2D6 DIESEL ENGINE
Authors: Yevsyeyeva N. , Borziy V. , Sukhonos R. , Bezhenov S.
Published: October 2023

RESEARCH OF THE INFLUENCE OF THE NOZZLE HOLES OF INJECTOR ON THE CHARACTERISTICS OF THE U2D6 DIESEL ENGINE
PREDICTION OF MICROHARDNESS OF ASD-1 POWDER COLD SPRAYING COATINGS
Authors: Shorinov O. , Dolmatov A. , Balushok K. , Polyviany S.
Published: October 2023

Purpose. To develop a mathematical model for describing the dependence of the microhardness of ASD-1 aluminum powder coatings on the three main factors of the cold gas-dynamic spraying process using statistical methods of experiment planning.

Research methods. Methods of statistical planning of multifactorial experiments and regression analysis were used to conduct experimental research. The analysis of microhardness was performed according to the standard methodology given in GOST 9450-76. Preparation of transverse microsections for microhardness studies was carried out according to standard methods for preparing samples for metallographic analysis of microstructure. The specialized computer program Stat-Ease 360 was used to process statistical data.

Results. The complex effect of cold gas spraying process parameters on the microhardness of ASD-1 powder coatings in a wide range of values was investigated. According to the results of experimental studies, it was established that in the investigated ranges of the deposition modes, it is possible to obtain microhardness of coatings in range from 49 to 66 HV0.15. The dispertion analysis results showed that the gas temperature and the stand-off distance have the greatest effect on the microhardness of the coatings, while the powder feed rate has no significant effect on the microhardness. The obtained regression equation can be used to predict the microhardness of coatings from the ASD-1 powder, and the error between the calculated and actual values does not exceed 5%.

Scientific novelty. Empirical dependences of the microhardness of ASD-1 powder coatings, deposited by cold spraying, on the gas temperature at the nozzle inlet, stand-off distance, and powder feed rate in the specified ranges of values were obtained.

Practical value. The obtained dependences of the coating microhardness on the process parameters can be used to select modes of cold spraying of protective and restorative coatings, in particular on aircraft engine parts.
PROSPECTS FOR USE AS SUBSTITUTES OF HEAT-RESISTANT DIE STEELS, HIGH-NITROGEN AUSTENITIC CHROMIUM-MANGANESE STEELS WITH VANADIUM AND MOLYBDENUM
Authors: Hrabovskyi V. , Kaniuka V. , Lysytsia O. , Yershov A.
Published: October 2023

Purpose. To study the effectiveness of additional (along with vanadium) alloying of high-nitrogen austenitic chromium-manganese steels with molybdenum to determine the prospects for their use instead of high-temperature resistant serial martensitic stamped steels.
Research methods. Metallographic, durometric, tensile and impact strength tests at room and high temperatures..
Results. The peculiarities of dispersion hardening and microstructures of the investigated high-nitrogen austenitic chromium-manganese steels alloyed with vanadium and molybdenum were determined. The mechanical properties of the selected steels were determined depending on the content of strengthening alloying elements. Significant advantages in the high-temperature (750 and 850 °C) strength of high-nitrogen austenitic chromium-manganese steels alloyed with vanadium and molybdenum were found compared to the serial high-temperature stamping steel 5Х3В3МФС (ДИ23). The highest hardness and strength values correspond to the research steel 60Х11Г16АФ2М2, which allows us to recommend it as an effective substitute for die steels when required to provide increased resistance to high-temperature dehardening of hot-die tools.
Scientific novelty. An abnormal presence of a minimum on the dispersion hardening curves of high-nitrogen austenitic chromium-manganese steels with molybdenum and its shift towards a shorter aging duration with increasing aging temperature have been determined. The formation of large particles of primary excess phases with increasing vanadium and molybdenum content in steels was revealed. The dependence of strength and ductility characteristics on the total alloying of the studied austenitic chromium-manganese steels with nitrogen and carbon was established.
Practical value. The effectiveness of molybdenum alloying along with vanadium in high-nitrogen austenitic chromium-manganese steels has been established to provide significant (1.5...2.5 times) advantages in high-temperature strength compared to heat-resistant commerciall stamped steels.. The research steel 60Х11Г16АФ2М2 may be the most promising substitute for die steels under high force loads at operating temperatures of 750 °C and above.
DETERMINATION OF THE INFLUENCE OF THE MIXTURE OF GASES ON IMPROVING THE QUALITY OF CATHODES FOR ION-PLASMA SPUTTERING
Authors: Omelchenko O. , Shaleva N. , Yefanov V.
Published: October 2023

Purpose. Improvement of the technological modes of smelting sputtering cathodes based on nickel of the Ni-Cr-Al-Y system in order to improve their quality, namely, to reduce the total number of defects in the form of discontinuities, pores, non-melts and increase the homogeneity of the structure and chemical composition and application of the protective atmosphere of inert gases, the most widespread of which are helium and argon.

Research methods. The equipment was improved, in particular, the vacuum-arc installation was equipped with a ramp and a helium cylinder. Test samples in the form of “washers” (diameter 127 mm and thickness 40 mm) were obtained, which were used to study the microstructure and chemical composition. Remelting modes have been worked out. The study of the chemical composition was carried out using a multipurpose scanning electron microscope REM 106I, equipped with a microanalysis system.

Results. Based on the results of studies of the influence of the gas mixture concentration on the structure and composition of the cathodes, technological modes of melting were established, which made it possible to improve the quality indicators and economic indicators of the investigated cathodes. This will have a positive effect on the number of cathode failures, the performance of coated parts and the life of aircraft engines in general.

Scientific novelty. The dependence of the influence of the concentration of the mixture of gases (argon-helium) was determined, which made it possible to obtain the optimal ratio of protective gases. With a gas ratio of 70/30 %, the highest quality cathodes were obtained, which were used for further research.

Practical value. Quality of coating sputtering is determined by regimes of sputtering and quality of cathode itself. One of applied methods is by-layered melting of cathodes in copper water-cooled crystallizer using electrodes that are melted or non-melted. Optimal ratio of protective gases for receiving qualitative cathodes is determined.
AS PESQUISAS SOBRE A ALFABETIZAÇÃO NUMA PERSPECTIVA DISCURSIVA: VOANDO A PARTIR DOS RESULTADOS CONSTRUÍDOS
Authors: Périgo Agnaldo , Santos Abraão Augusto da Silva , Pereira Bárbara Cortella
Published: October 2023

Este trabalho tem por objetivo fazer uma síntese integrativa sobre o descritor alfabetização numa perspectiva discursiva, na última década. A base de dados investigada foi o Catálogo de Teses e Dissertações da Capes. Os resultados demonstram uma grande preocupação de pesquisadores sobre as orientações teórico-metodológicas que podem contribuir para a apropriação de uma abordagem educacional pautada nos princípios da perspectiva discursiva de alfabetização. Os dados aqui analisados fortalecem o estado da arte que embasa a nossa pesquisa de doutorado que pretende abordar essa perspectiva no processo de leitura e escritura em escolas da Educação Básica. Essa investigação demonstrou a grande relevância da alfabetização em pesquisas atuais e o diálogo interseccionado entre essas pesquisas fortalece nossa abordagem teórica e metodológica. Por outro lado, podemos constatar que há um vasto campo de pesquisa a ser explorado em relação à perspectiva discursiva de alfabetização e suas relações com o poético, estético e literário.
Effects of mixture design parameters on the properties of belitic calcium sulfoaluminate concrete
Authors: Aguilar Rosero Israel , Soriano Somarriba Edgar , Farivar Behzad , Murray Cameron D.
Published: October 2023

Belitic calcium sulfoaluminate (BCSA) cement has well-established advantages such as a fast setting time, fast strength gain, long-term strength, shrinkage and sustainability. BCSA cement reaches an initial set in about 15 min at room temperature and can reach compressive strengths of over 27 MPa in about 2 h. While it can be mixed in a similar fashion to Portland cement (PC), a set retarder (such as citric acid) is usually required to achieve adequate working time and the design of mixtures differs slightly from PC designs. This paper provides guidance on establishing mix design criteria for BCSA cement. Slump and compressive strength studies measurements were taken for varying mixture proportions with strengths measured up to 1 year of hydration. For BCSA concrete mixtures, a relationship between water content and slump was established. Citric acid was found to increase the slump, especially at lower water contents. A relationship between setting time and citric acid dosage was proposed on the basis of mortar penetrometer and Vicat needle tests. X-ray diffraction analysis was also conducted on BCSA cement pastes with different water/cement (w/c) ratios. Crystalline structure growth was found to be directly related to the w/c ratio and inversely proportional to compressive strength.
graduação em medicina e as Práticas Integrativas e Complementares em Saúde
Authors: De Andrade Freitas Martins Ana Clara , Roseghini Renata , Ramos Daltro Mônica
Published: October 2023

A experiência acadêmica dos estudantes de medicina, ainda que traga muito conhecimento técnico e prático para os estudantes, é repleta de dificuldade, desafios e complexidade. Dessa forma, muitos estudantes tentam encontrar formas de abrandar essa trajetória através de estratégias que compreendem o exercício de práticas para o autocuidado. As Práticas Integrativas e Complementares em Saúde (PICS) podem se tornar aliadas desse período. Esse texto trata de um relato de experiência em que uma estudante de medicina descreve e analisa suas vivências com as PICS durante o processo de formação acadêmica, no período compreendido entre 2019 e 2021. Uma narrativa científica na forma auto narrativa, na qual a escritora analisa os acontecimentos baseando-se na importância e no impacto destes na sua trajetória. O objetivo desse texto é entender o impacto e o relacionamento das PICS com uma estudante de medicina em formação, de forma a também assimilar a importância dessas práticas em sua saúde física e mental. A partir deste trabalho foi possível entender a relação dessas práticas com a formação acadêmica de um estudante de medicina, que é historicamente marcada por grande custo psíquico.
Estudo de Caso sobre a Atividade Docente: Família, Alunos e Sistema Educacional
Authors: Carneiro de Oliveira Louanne , Aragão Pinheiro Francisco Pablo Huascar , Braz de Aquino Cássio Adriano , Parente Rodrigues Haline Maria , Sousa Rodrigues David , Meireles Vieira Emanuel
Published: October 2023

A identidade do docente, vista como um processo, diz respeito à dinâmica entre a forma de se sentir e a maneira de se dizer professor. O objetivo da investigação apresentada é compreender como se dá a busca por um “trabalho bem-feito” no exercício da docência. Tal proposta foi realizada a partir de estudo de caso derivado de uma intervenção, baseada na perspectiva da Clínica da Atividade, efetuada em uma escola de ensino fundamental situada no interior do Estado do Ceará. Foram efetivadas observações das atividades realizadas e autoconfrontações simples, intercaladas com reuniões entre os facilitadores e as oito docentes participantes. Os dados foram submetidos à análise construtivo-interpretativa. Os resultados indicaram que a qualidade nesse exercício laboral é transpassada por questões multifacetadas: realidade social, cultural e familiar dos alunos; relacionamento entre família e docentes; apoio familiar na vida escolar das crianças, entre outras. As professoras desenvolveram estratégias para lidar com tais questões.
Possíveis impactos da pandemia de Covid-19 nas famílias: uma revisão sistemática
Authors: Almagro Carvalho Caio Henrique , Rodrigues Rafael Pedro , Sei Maíra Bonafé
Published: October 2023

A pandemia de Covid-19 trouxe complicações e alterações inéditas à sociedade e às famílias, sendo necessária toda uma nova reorganização familiar. No presente estudo foi realizada uma revisão sistemática de artigos de pesquisas empíricas nas bases de dados “LILACS”, “PePSIC”, “SciELO”, “PsycINFO” e “SCOPUS” para verificar os impactos ocasionados nas famílias pela pandemia de Covid-19. As palavras-chaves utilizadas para encontrar os artigos foram “impacts, consequences, grievances AND problems”, “pandemic, Covid pandemic AND Covid-19” e “family, family dynamics AND family relationships”. Os artigos incluídos após a seleção abarcavam pesquisas empíricas; nas em línguas português, inglês ou espanhol; entre os anos 2021 e 2022 e temáticas vinculadas aos impactos da pandemia na dinâmica familiar. Descobriu-se por meio da revisão que a pandemia trouxe bastante impacto negativo às famílias, principalmente aos pais com sobrecarga de função e cuidados. A pandemia serviu também como agregador de um sofrimento já existente dentro da família, potencializando o problema pertencente na relação familiar. Além disto, pode-se perceber que fatores como renda, raça e gênero acarretam uma maior probabilidade de impactos negativos nas famílias. Tais resultados apontam para uma breve noção das consequências da pandemia e do isolamento e mostram a existência de impactos psicológicos e financeiros. Entretanto, faz-se necessário mais estudos, principalmente no Brasil, para mensurar outros tipos de impactos.
Violência contra mulheres entre parceiros íntimos na Covid-19: uma revisão sistemática
Authors: Carvalho Mariane Cardoso , Diniz Andréa Lopes Almeida , Souza Silva Layane , Elisa de Assis Freire Sandra , Negreiros Fauston
Published: October 2023

O presente estudo objetivou reunir achados na literatura a respeito da violência contra a mulher entre parceiros íntimos durante a pandemia da Covid-19 considerando as características desse contexto. Para tanto, foi realizada uma revisão sistemática da literatura acerca dos estudos publicados sobre o tema pautada nas diretrizes do Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). A formulação da questão norteadora foi elaborada a partir da estratégia mnemônico “população”, “conceito”, “contexto” (PCC), respectivamente representados por P = mulheres, C = violência doméstica entre parceiros íntimos, e C = covid-19. Foram utilizados os seguintes Descritores em Ciências da Saúde (DeCS): “domestic violence”, covid, women, combinado as suas respectivas traduções em português: “violência doméstica”, covid, mulheres, sendo utilizado também os operadores lógicos “and” e “or”. As bases de dados foram: Lilacs, PsycInfo, PsycArticles, Scielo, Scopus e Medline. Após a busca nas respectivas bases de dados, os arquivos rastreados foram exportados para a plataforma web Rayyan, em maio de 2022. Após minuciosa avaliação dos critérios de inclusão, 17 estudos foram analisados. Os estudos evidenciam que houve um aumento no índice de violência contra a mulher entre parceiros íntimos durante a pandemia da Covid-19, inclusive em mulheres grávidas. As pesquisas revelam que poucas mulheres buscam suporte e grande porcentagem normaliza os comportamentos agressivos dos seus parceiros íntimos. Dados dos estudos também revelaram fatores que influenciam essa violência, como o casamento em idade jovem, baixo nível educacional, abuso de álcool, dentre outros.
Empoderamento Negro como dispositivo político: Reflexões de uma Pesquisa-Ação
Authors: Vinicius Soares Oliveira Joel , De Sousa Mendonça Érika
Published: October 2023

Considerando-se que a população negra se encontra como uma das parcelas mais negligenciadas da sociedade brasileira em questões materiais, existenciais e de qualidade de vida e que, simultaneamente, o racismo continua a ser negado como prática social, sendo suas implicações produtoras de sofrimentos, realizou-se uma pesquisa-ação junto a jovens mulheres afrodescendentes do agreste meridional pernambucano. Foram realizados quatro encontros inspirados por conceitos da temática do empoderamento, cujo rememoramento de vivências e discussões revelaram o quão engendrado o preconceito se situa em suas existências como pessoas pretas, interferindo em suas formas de lidar com a opressão que chega até elas através de uma intersecção de condições em que se encontram imersas como parte de suas pessoas, além de situar a importância de uma nova e afirmativa apresentação cotidiana do povo negro. Constatou-se, como promissor, o uso de encontros grupais na abordagem desta temática, incitando reflexões e possivelmente a compaixão e amor à negritude, colaborando a uma Psicologia negra, que inspire mudanças políticas e sociais a curto e longo prazo.
Babado, gritaria e confusão: Cartografias de experiências “trans” em contextos de educação
Authors: de Mello Lopes Carlos Eduardo , Hampe Fernanda
Published: October 2023

Este artigo nasce de um trabalho de conclusão de curso e trata-se de uma escrita que se propôs a acompanhar as experiências de professoras trans, em sua intersecção com as dimensões raça, gênero e sexualidade em escolas públicas de Porto Alegre e região metropolitana. O estudo teve como objetivo cartografar vivências e experiências de corpos trans, para além dos processos de vitimização, percebendo a potência dessas profissionais que a partir da “montagem” de seus corpos, entendidos como éticos, estéticos e políticos, tensionam lógicas cisheteronormativas instauradas na sociedade e nas instituições escolares. Participaram da pesquisa três professoras transexuais, sendo duas delas negras e uma branca, cujas identidades raciais foram fornecidas por autodeclaração. A coleta dos dados foi realizada a partir de entrevistas abertas que foram transcritas e analisadas à luz da escuta clínica e os resultados agrupados em três categorias: “babado”, “gritaria” e “confusão”. Os achados apontam para a necessidade de uma instituição escolar que não apenas aceite a diversidade, mas, a deseje e que sustente a alteridade. Esse estudo apoiou-se nos Estudos de Gênero e Sexualidade
O papel do smartphone no desenvolvimento do ciclo vital conjugal
Authors: Dos Santos Pereira Ionara , Bosetto Cenci Cláudia Mara
Published: October 2023

A tecnologia da informação e comunicação alterou a natureza dos relacionamentos interpessoais. Se, de um lado, o smartphone ganha representatividade no relacionamento conjugal, oferecendo múltiplas formas de comunicação, de outro a atenção exclusiva e o uso excessivo do aparelho celular causam distanciamento dos parceiros conjugais. Este estudo objetivou compreender as funções do smartphone no relacionamento conjugal em diferentes etapas do ciclo vital. Trata-se de uma pesquisa qualitativa, de corte transversal, e caráter descritivo e exploratório. Participaram 20 indivíduos heterossexuais que constituíam 10 casais coabitantes, residentes no Estado do Rio Grande do Sul, Brasil, que responderam individualmente um questionário sociodemográfico e uma entrevista semiestruturada online. Os dados foram submetidos à análise temática, da qual evidenciou-se dois temas: 1) O papel do smartphone no ciclo vital conjugal; 2) A pandemia e as mudanças no uso do smartphone. Os resultados foram analisados pela teoria sistêmica e mostraram que o uso do smartphone permeia o relacionamento conjugal ao longo de seu desenvolvimento e tanto potencializa as adversidades das diferentes etapas do ciclo vital conjugal como oferece recursos para o casal resolver as dificuldades encontradas nesse percurso. Além disso, o aumento do uso do dispositivo em decorrência da pandemia Covid-19 intensifica a complexidade da relação conjugal.
Manipulação e fabricação de dados em pesquisa científica: as consequências são tão simples como pensamos?
Authors: Queiroz Ciro Oliveira , Lourenço Camilo Luis Monteiro
Published: October 2023

A má conduta científica vem sendo observada ao longo da história da ciência, entretanto, nas últimas décadas teve um crescimento exponencial, e um exemplo disso foi a época da pandemia da COVID-19. Ficamos a refletir sobre o potencial impacto que uma evidência frágil pode gerar a partir de um convencimento de uma prática ou tomada de decisão profissional. Isso pode ocorrer devido a falhas no sistema educacional, na formação de pesquisadores e até mesmo a desvios morais e éticos.
Alessandro d’Afrodisia e l’anima semovente del Fedro (245c5-9) di
Platone
Authors: Longo Angela
Published: October 2023

Alexander of Aphrodisias, Aristotle’s commentator par excellence, rarely engages with Plato. In the present paper, however, we see him at work as an exegete of a passage in the Phaedrus (245c5-9), in which Plato argues for the immortality of the soul based on its self-motion. In this paper, I focus on two ways in which Alexander deals with the passage. In his commentary on Aristotle’s Prior Analytics (CAG II 1), Alexander employs the same approach to the Phaedrus that he uses with Aristotle’s treatises: he puts an informal argument expressed in ordinary language into the more formal shape of a syllogism.
This does not mean that Alexander gives his approval to Plato’s theory.
In fact, in his commentary on Aristotle’s Topics (CAG II 2), Alexander
introduces a polemical discussion of the same Platonic argument. Commenting on Aristotle’s denial that the soul is a self-moving substance (Top. IV 1.120b21-29), Alexander spells out the implicit reference to the Phaedrus and criticizes Plato’s argument for not taking into account the difference between an accidental property of the soul and the essential characteristics by which it is defined. Plato’s theory of self-motion is partly accepted by Alexander and partly criticized. This paves the way for how the theory will be applied in the Aristotelian tradition, not to the soul, as in Plato, but to the ensouled body, either of the living being or of the heavens.
Waveform characteristics in thoracic paravertebral space: a prospective observational study v1
Authors: Vijitpavan Amorn , Termpornlert Sivaporn
Published: October 2023

Background: With increased use of thoracic paravertebral block (TPVB) in thoracic surgery, many faced the challenge of locating the thoracic paravertebral space (TPVS) ultrasonographically. This observational study aimedto investigate the waveform characteristics and pressure value within the TPVS in Anesthetized patients with controlled ventilation. Methods: Fifty patients scheduled for elective lung surgery were enrolled. After conduction of Anesthesia, all patients underwent TPVB at T4/5 and T6/7 using transverse, in-plane ultrasound guidance. A pressure transducer system with a desktop monitor was connected to the needle hub to measure pressure values and waveform characteristics in three locations: the paraspinal muscles, immediately behind the superior costotransverse ligament, and within the TPVS. Next, 15 mL of 0.33% bupivacaine was injected into each desired TPVS. After completion of the surgery, the extent of dermatomal blockade and the pain score was assessed in all patients. Results: Ninety-eight typical regular respiratory waveforms with a mean pressure of ≤ 25 mmHg were detected in the TPVS of fifty patients. The sensitivity of the combined ultrasound and pressure waveform measurementtechnique to identify the TPVS was 95.45% (95% confidence interval, 84.527–99.445) . Nontypical respiratory waveforms were present in two patients. Factors interfering with the TPVS waveform characteristics were previous thoracic surgery and chronic pleural inflammation. Conclusion: Monitoring of the pressure value and waveform characteristics is a simple and reliable strategy to identify the needle tip in the TPVS. The appearance of the respiratory waveform ensures that the end of the needle aperture is within the TPVS.
Strep pull down assay v1
Authors: Chen Minghao , Ren Xuefeng
Published: October 2023

Strep pull down assay for FIP200(NTD)-TSF WT or mutants were co-transfected with GST-ATG13(363-517) and/or ULK1(MIT)-MBP
Microscopy-based GSH bead protein-protein interaction assay v1
Authors: Chen Minghao , Ren Xuefeng
Published: October 2023

Microscopy-based GSH bead protein-protein interaction assay
Expression and purification of PI3KC3-C1 complex v1
Authors: Chen Minghao , Ren Xuefeng
Published: October 2023

Expression and purification of PI3KC3-C1 complex
Expression and purification for cryo-EM samples of FIP200NTD:ATG13(363-517)-ULK1(MIT) complexes v1
Authors: Chen Minghao , Ren Xuefeng
Published: October 2023

Expression and purification for cryo-EM samples of FIP200NTD:ATG13(363-517)-ULK1(MIT) complexes
Model building, validation, and visualization v1
Authors: Chen Minghao
Published: October 2023

Model building, validation, and visualization
Sample vitrification and cryo-EM data acquisition v1
Authors: Chen Minghao
Published: October 2023

Sample vitrification and cryo-EM data acquisition
WGSA2 workflow - a tutorial v1
Authors: Angelova Angelina
Published: October 2023

The exploration of the microbiome has gained significant attention, leading to the development of powerful computational tools and online pipelines. These tools relieve researchers from the burdensome task of bioinformatics processing for their metagenomics data. Some existing tools (e.g. MetaPhlAn) enable the extraction of taxonomic and functional information directly from shotgun metagenomic short reads. However, more comprehensive analyses rely on tools that often require longer contiguous sequences (e.g. KEGG tools, BLASTp). Unfortunately, there is a scarcity of online tools that provide researchers with computational resources and a command line-free experience to assemble short-read metagenomic datasets for deeper exploration. To address this computational gap, our Nephele2 team at the National Institute for Allergies and Infectious Diseases (NIAID) designed, developed, and integrated a command line-free Whole Metagenome Sequencing Assembly-based pipeline called WGSA2, into our cloud-based microbiome analysis platform, [Nephele](https://nephele.niaid.nih.gov/). WGSA2 facilitates the processing of shotgun datasets derived from complex microbial communities and diverse habitats, including both host-associated and environmental samples. This pipeline starts by processing raw reads and proceeds to perform functional and taxonomic annotations, to bin the assemblies and to generate graphics to summarize various tabular outputs. The pipeline offers a user-friendly experience that omits computational demands and expertise. It allows for customizations of profiling strategies and selection of databases (e.g. RefSeq, MGBC, KEGG, MetaCyc). It enables efficient acquisition of biological detail and grants users with easy access to assembly-based sequences and analysis of their datasets. Overall, WGSA2 fills a computational void in metagenomics, enhances accessibility and comprehension of the data, and paves the way for deeper exploration of the microbiome. This protocol goes through the steps of the WGSA2 workflow, explaining the tools and processing applied in each step.
The Development of FunLABS Android-Based Application Using Unity Software as Learning Media to Explore Students’ Motivation on Acid, Base, and Salt Topic
Authors: Nursakinah Yulianita , Prima Eka Cahya , Agustin Rika Rafikah
Published: October 2023

The lack of digital media to support middle school chemistry learning needs further expanded. Hence, an Android application as a learning media on acid, base, and salt topics was needed. This study aims to develop FunLABS (Fun Learning Acid, Base, and Salt) android-based applications. This study used a DDD-E model of development as a research method, and it consists of deciding stage, designing stage, developing stage, and evaluating stage. The deciding stage begins with analyzing the content and the software developed. The design stage consists of drawing a flowchart and the storyboard. Then, in the developing stage, the application was developed based on the previous stage. The last is the evaluation stage, which involves three expert judges, three science teachers, and forty students chosen to review the application by convenience sampling. The results from the expert's judgment show an average score of 3.54. The results from teachers show an average score of 3.49. The results from students show an average score of 3.51. The profile of students' motivation score after operating the FunLABS Application is 77.87% which is described as good motivation. Hence, the results from the experts, science teachers, and students showed positive feedback, and the application was completely revised. The FunLABS Android application can be used in the learning activity to explore students' motivation on acid, base, and salt topics.
Redesigning Sciences Courses based on A Local Senior High School in Iloilo, Philippines’ Student Performances and Perspectives towards Hybrid Learning Approach
Authors: Gabor Donna Hembra , Camano Leona Marie Canaway
Published: October 2023

This study aimed to examine learners' perspectives on the hybrid learning approach, using printed modules and social media as learning materials to redesign science courses and improve their performances. This study involved 37 students from Tacuyong Sur National High School, 20 from the Grade 9 class and 17 from the Grade 12 Technical Vocational Livelihood (TVL) class in the fourth quarter of the school year 2021-2022. The 5-items multiple-choice test assesses student performance. A survey question determined learners' perspectives on hybrid learning after revising the delivery mode for science courses. Student performances based on their pre-test/post-test revealed the benefits and problems connected with the hybrid learning approach. Program for statistical analysis of sampled data (PSPP) interpreted the survey and student performance. Hybrid learning survey results revealed a practical approach to improve science learners' performances during the COVID-19 pandemic. Data results through teacher-technology innovation demonstrated the effectiveness of hybrid learning techniques to help teachers and curriculum planners redesign course subjects that improve science student performances.
Loneliness as a phenomenon of being Homo sapiens / Homo cosmicus
Authors: Belyaev Igor A. , Lyashchenko Maxim N. , Maksimov Alexander M.
Published: October 2023

The article is devoted to the disclosure of the fundamental characteristics of the loneliness of Homo sapiens, acting as Homo cosmicus. In their research, the authors proceed from the assumption that a person for whom the development of outer space will become an everyday life reality will remain, in principle, the same natural, socio-spiritual being as it is now, despite all those external and internal changes, the undergoing of which is an inevitable attribute of his future. Philosophical search has shown that in relation to the existence of Homo sapiens/Homo cosmicus, loneliness is a phenomenon, the essence of which is socio-historical, and existence is eventual.
Ontological narrativats of the spiritual and body integrity of a human in the framework of modern society and the problem of humanitarian expertise
Authors: Sheleketa Vladislav O. , Legochkin Yuri Y. , Sabaeva Anna O.
Published: October 2023

The article is devoted to the problem of objective-ontological foundations of cultural narratives, morality, and ethical assessments. The authors, drawing on the theory of cultural narratives and the principles of systems theory, substantiate the position that any ethical assessment, including the assessment of technological projects, should have its basis in the form of these principles of integrity, self-consistency, etc., according to which (and according to patterns and narratives of which) human civilization develops. Adherence to these supracultural, universal principles, one of which is the principle of the unity of being, in accordance with which the being of a person and culture develops, guarantees the achievement of integrity and the person himself.
Catholic theology in the context of postmodernist relativism
Authors: Mozheiko Marina A.
Published: October 2023

The article considers modern Catholic theology in the context set by the postmodern cultural attitudes, namely, the phenomenon of the decline of metanarrations and fundamental relativism, which does not correlate well with the classical theological tradition. Under these conditions, Catholic theology, starting with the Agiornamento tradition, demonstrates new attitudes that can also be considered in the context of the rejection of severe intolerance, that is, a kind of humanization.
“Web-Based Virtual Learning Environment”: A Preliminary Assessment Of Effectiveness Of Virtual Science Activity On Conceptual Understanding
Authors: Gupta Manisha Bajpai , Sharma Seema
Published: October 2023

The present study aimed at examining the effectiveness of the web - based virtual activities on the development of student’s conceptual understanding in science. The effect of virtual activity was evaluated in term of learning gains and perception. To achieve these objectives an experimental design is selected. Since application of the result to conventional lab activity of selected concepts of science was one of the prime concerns to the researches, the activities were conducted in convention physics lab as well Web-based Virtual OLABS. The study found that virtual science activity is more effective on conceptual understanding.