bluuebunny/crossref_metadata_2025 huggingface dataset:
Vitimização por bullying e fatores associados entre escolares de um município do Sul do Brasil
Authors: Gomes Natália Rosa , Muniz Ludmila Correa , Mintem Gicele Costa , Kaufmann Cristina Corrêa , Bielemann Renata Moraes
Published: February 2024

Resumo O objetivo foi avaliar a prevalência de vitimização por bullying e seus fatores associados entre adolescentes da cidade de Pelotas, RS. Estudo transversal de base escolar realizado com 795 alunos do 9o ano do ensino fundamental de 25 escolas municipais urbanas vinculadas ao PSE. O bullying foi avaliado por meio de perguntas que abordaram a ocorrência, a frequência, o local, o tipo de violência sofrida e o quanto isso incomoda as vítimas. Análises bruta e ajustada foram feitas por regressão de Poisson. Aproximadamente 71% dos estudantes relataram ter sofrido bullying, a escola foi o local de maior ocorrência (86,7%). Entre os tipos de agressões sofridas, “apelidos” foi a queixa mais recorrente (88,4%), seguida por exclusão ou isolamento (26,6%). A vitimização foi mais frequente entre as meninas (RP 1,13; IC95% 1,02-1,27), estudantes com cor da pele/raça não branca (RP 1,16; IC95% 1,05-1,29), que já experimentaram tabaco (RP 1,14; IC95% 1,03-1,27), insatisfeitos (RP 1,42; IC95% 1,27-1,58) ou indiferentes (RP 1,21; IC95% 1,02-1,43) em relação ao corpo e que apresentavam excesso de peso (RP 1,15; IC95% 1,04-1,27). Os resultados mostram que o bullying é uma prática frequente no ambiente escolar, apontando para a necessidade de práticas educativas voltadas para a redução e prevenção desse tipo de violência.
Sobre ativismos e conhecimentos: a experiência de associações canábicas no Brasil
Authors: Rodrigues Ana Paula Lopes da Silva , Lopes Ivonete da Silva , Mourão Victor Luiz Alves
Published: February 2024

Resumo O surgimento de associações civis em prol da cannabis se iniciou na década de 2010. Diante da inércia do Estado, essas organizações têm atuado no acolhimento, apoio, informação, capacitação e facilitação do acesso de pacientes e familiares a medicamento produzido à base de maconha, substância proibida no Brasil. Este estudo visa analisar como o ativismo canábico promovido pelas associações brasileiras se fundamenta em conhecimentos científicos ou adquiridos pela vivência dos associados. A metodologia englobou entrevistas com participantes das associações ACuCa, Ama+me e Apepi e análise de conteúdo dos perfis dessas instituições no Instagram. Verificou-se que o ativismo canábico no Instagram apresenta semelhanças com aquele praticado presencialmente, no entanto, o ativismo nas mídias sociais prioriza a divulgação do conhecimento pela informação e capacitação de seus seguidores, tendo o cuidado de tratar o conteúdo para se adequar às diretrizes da plataforma. Além disso, as principais linhas de atuação do associativismo canábico (acolhimento e distribuição de óleos medicinais) aparecem de forma velada nas publicações, sendo que em sua maioria ocorrem em conversas privadas nos meios de comunicação com as associações.
On activism and knowledge: the experience of cannabis associations in Brazil
Authors: Rodrigues Ana Paula Lopes da Silva , Lopes Ivonete da Silva , Mourão Victor Luiz Alves
Published: February 2024

Abstract The emergence of civil associations in favor of cannabis began in the 2010s. Faced with the inertia of the State, these organizations have acted in the reception, support, information, training, and facilitation of access for patients and their families to the medicine produced from marijuana, a prohibited substance in Brazil. This study aims to analyze how cannabis activism promoted by Brazilian associations is based on scientific knowledge or knowledge acquired through the experience of members. The methodology included interviews with participants from the ACuCa, Ama+me, and Apepi associations, as well as the Content Analysis of the profiles of these institutions on Instagram. It was found that cannabis activism on Instagram is similar to that practiced in person; however, activism on social media prioritizes the dissemination of knowledge through information and training of its followers, being careful to treat the content in order to suit the guidelines of the platform. In addition, the main lines of action of cannabis associations (reception and distribution of medicinal oils) appear in a veiled way in the publications, most of which occur through private conversations in the media with the associations.
ICNP® terminological subset for preventing falls in the elderly in primary care
Authors: Santos Paulo Henrique Fernandes dos , Stival Marina Morato , Lima Luciano Ramos de , Volpe Cris Renata Grou , Funghetto Silvana Schwerz
Published: February 2024

ABSTRACT Objective: Build and validate a terminological subset of ICNP® for the prevention of falls in the elderly in the context of primary health care, in light of the Self-Care Deficit Theory. Method: Methodological study developed in accordance with ICN recommendations and the Brazilian method for constructing terminological subsets, in two stages: 1) construction of ICNP® statements of nursing diagnoses, outcomes, and interventions; 2) content validation of statements by specialist nurses. Results: A total of 182 diagnoses/outcomes and 321 nursing interventions were constructed, which were subjected to content validation by 28 experts, being validated with a Content Validity Index ≥ 0.80. After validation, the statements were organized according to self-care requirements and the majority of diagnoses/outcomes (51.6%) and interventions (52.7%) were classified under health deviation requirements. Conclusion: It was possible to construct and validate a terminological subset of ICNP® with a predominance of statements related to health deviation requirements, standing out for being the first terminological subset for the prevention of falls in the elderly in the context of primary care.
Sexual behavior of university students in the context of the COVID-19 pandemic: a mixed-methods study
Authors: Brasil Maria Hellena Ferreira , Patrício Anna Cláudia Freire de Araújo , Nogueira Wynne Pereira , Freire Maria Eliane Moreira , Gir Elucir , Silva Ana Cristina de Oliveira e
Published: February 2024

ABSTRACT Objective: To analyze the sexual behaviors of university students during the COVID-19 pandemic. Method: Mixed study, carried out on four campuses of a public university in Paraíba, Brazil, between March 2021 and April 2022. The research followed ethical precepts. Results: 404 university students were included, with an average age of 23.7 years, predominantly female, brown and single. The prevalence of self-reported sexually transmitted infections was 7.9%. Male students were more likely to engage in risky sexual behavior. Multiple logistic regression indicated that university students aged 25 or over who had engaged in casual sex in the last 12 months and had received or paid for sex were more likely to have sexually transmitted infections. The content analysis showed that social isolation was reflected in reduced consumption of alcohol and other substances, reduced sexual practices, increased use of social networks, as well as low adherence to condoms. Conclusion: Physical distancing has an impact on the sexual behavior of university students, as well as on the consumption of alcohol and other substances.
Shelf-life of green asparagus using cassava and chitosan blend coating
Authors: Aroucha Edna , Anastasiadi Maria , Collings Emma , Araujo Nicolas , Terry Leon
Published: February 2024

Abstract Polysaccharide coating is a biodegradable alternative to conventional packings used for delaying senescence in vegetables. This work investigated the properties of cassava and chitosan biopolymeric film and its use as edible coatings to preserve the shelf-life (7 °C and 70% relative humidity (RH)) of green asparagus, with previous cold storage (1 °C and 90% RH) for 7 days. Based on a previous assessment of the films obtained from a) cassava (2.5%), b) chitosan (0.5%), and c) a blend of cassava-chitosan (Cassava+) (2.5 + 0.5%), it could be verified that cassava-chitosan blend films showed improved barrier property (water vapor transmission rate (WVTR) of 38.06 g/(m2.h)) and mechanical properties, with tensile strength of 0.021 MPa, elongation at break of 1.93% and Young’s module of 0.011 MPa. Cassava+ based coating resulted in a lower weight loss and colour L* parameter and minimized textural changes in basal-section of commercial green asparagus spears during a shelf-life of seven days (7 °C and 70% RH), with previous cold storage. All coated spears maintained overall higher carbohydrate levels than the control, except to sucrose which gradually decreased in basal sections and increased in the apical sections of asparagus spears, irrespective of treatment. Edible coating did not affect asparagine concentrations which steadily increased throughout the shelf-life of the spears. The blend (Cassava+) kept for a longer the green asparagus quality. However, spears under a shelf-life of seven days (7 °C and 70% RH), with previous cold storage under 1 °C and 90% RH conditions, developed tip-rot physiological disorder.
Consciência Política e Participação na Defesa de Direitos LGBTQ+ no Trabalho
Authors: Boasquevisque Leôni Mongin , Palassi Marcia Prezotti , Silva Alfredo Rodrigues Leite da
Published: February 2024

Resumo Este artigo visa compreender os aspectos psicopolíticos da participação dos trabalhadores de teleatendimento, de sindicalistas e de lideranças em coletivos em ações coletivas de defesa dos direitos LGBTQ+ no trabalho. A pesquisa adota o modelo conceitual de consciência política desenvolvido no campo da psicologia política por Sandoval e Silva (2016). Os dados foram produzidos qualitativamente em duas etapas: interação com os participantes da pesquisa para apresentar o tema e verificar como se sentiriam dispostos a abordar seus aspectos mais sensíveis; disponibilização de diferentes questionários on-line com enfoque qualitativo para os participantes da pesquisa: 14 trabalhadores de teleatendimento, 2 sindicalistas e 6 lideranças em Coletivos LGBTQ+. A partir da análise do conteúdo das manifestações revelou-se a heterogeneidade nas consciências políticas dos participantes da pesquisa, em diferenças envolvendo seus engajamentos políticos ou a falta dele. Ao discutir tais aspectos foi preenchida a lacuna da ausência de trabalhos no campo dos estudos organizacionais, da gestão com pessoas e das relações de trabalho, que utilizam contribuições teóricas da abordagem psicopolítica para tratar da (des)mobilização de diferentes sujeitos na defesa de direitos LGBTQ+ no trabalho nessas áreas de conhecimento. Para os trabalhadores, sindicalistas, lideranças em coletivos e a sociedade, essas contribuições teóricas permitiram vislumbrar que a articulação entre sindicatos e coletivos tende a potencializar a formação de uma consciência política crítica, fomentando ações conjuntas na luta pelos direitos LGBTQ+ no trabalho.
Professional Qualification and Public Labor Intermediation: Labor Market Management in Brazil, 1880-2017
Authors: Menezes Vitor Matheus Oliveira de
Published: February 2024

Abstract This article analyzes the evolution, over the period from 1880 to 2017, of the two most important active employment policies in Brazil: public labor intermediation and professional qualification. By different means, these policies seek to regulate the encounter between labor supply and demand, encouraging individuals to participate in the economy and preventing job vacancies from going unfilled. The article discusses which arrangements between public and private actors were adopted in each period and what these arrangements reveal about the management of the Brazilian labor market. In order to historicize the formation of the labor market, unemployment is a relevant category, especially when we consider its institutionalization in the country through its inclusion in the state agenda and labor market regulation practices. Active policies migrated from the management of wage relations and the need to forge a new workforce, highlighting the role of the state (especially through authoritarian means) in the modernization of the productive sector until the 1980s, to the support for unemployed workers from the 1990s, given the processes of labor market flexibilization, rising unemployment rates, and the destabilization of occupational trajectories.
The Contribution of Interdisciplinarity to the Development of Competencies for WorkRelated Mental Health in Primary Health Care
Authors: Almeida Leonardo Alexandrino de , Bianco Mônica de Fatima , Moraes Thiago Drumond , Alves Roberta Belizário
Published: February 2024

Abstract This study aimed to investigate the process of developing competencies for working with WorkRelated Mental Health (WRMH) in primary health care. The research is anchored on a referential that discusses the notion of competencies and their development in a contextualized way, stemming from the interpretivist paradigm. Additionally, it resorts to discussions about interdisciplinarity, social determinants of health processes, and WRMH in primary care. The research has a qualitative approach. The data were produced through semi-structured interviews, which were recorded, transcribed, and subjected to thematic content analysis, with a posteriori categorization. The results show little inclusion of WRMH in primary care, a lack of integration between sectors and professionals and the existence of some actions developed in an interdisciplinary way. The competency development strategies foster interdisciplinarity but do not adequately address the mental health of workers who use the services. This study provides an indepth look at the relationships between interdisciplinarity and competency development in WRMH. It is concluded that interdisciplinarity contributes to the development of competencies, while at the same time it is an important competence for performance in primary care. The concept of competence linked to the professional category, the influence of disciplinary training, and the scarcity of resources limit the use of interdisciplinarity in the development of competencies, especially regarding WRMH, which is considered the responsibility of specialized areas.
A Contribuição da Interdisciplinaridade no Desenvolvimento de Competências para Atuação em Saúde Mental Relacionada ao Trabalho na Atenção Básica em Saúde
Authors: Almeida Leonardo Alexandrino de , Bianco Mônica de Fatima , Moraes Thiago Drumond , Alves Roberta Belizário
Published: February 2024

Resumo O objetivo deste estudo foi investigar o processo de desenvolvimento de competências para a atuação em Saúde Mental Relacionada ao Trabalho (SMRT) na atenção básica em saúde. A pesquisa se ancora em um referencial que discute a noção de competência e o seu desenvolvimento de forma contextualizada a partir do paradigma interpretativista. Adicionalmente, recorre-se a discussões sobre a interdisciplinaridade, a determinação social dos processos de saúde e a SMRT na atenção básica. A abordagem é qualitativa. Os dados foram produzidos por meio de entrevistas semiestruturadas, que foram gravadas, transcritas e submetidas à análise de conteúdo temática, com categorização a posteriori. Os resultados demonstram pouca inserção da SMRT na atenção básica, falta de integração entre os setores e profissionais, e a existência de algumas ações desenvolvidas de forma interdisciplinar. As estratégias de desenvolvimento de competências fomentam a interdisciplinaridade, mas não abordam a saúde mental dos trabalhadores usuários dos serviços. A partir de uma discussão aprofundada, conclui-se que a interdisciplinaridade é uma competência importante para a atuação na atenção básica, ao mesmo tempo em que contribui para o desenvolvimento de outras. A concepção de competência atrelada à categoria profissional, à influência da formação disciplinar e à escassez de recursos limita o aproveitamento da interdisciplinaridade no desenvolvimento dos profissionais, notadamente, no que se refere à SMRT, vista como responsabilidade de áreas especializadas.
“Fazendo do Limão uma Limonada Sofisticada”: Gênero e Raça no Organizar Cotidiano das Práticas Culinárias
Authors: Borsatto Andiara Rosa dos Santos , Fantinel Letícia Dias
Published: February 2024

Resumo Este artigo objetiva compreender o organizar do cotidiano a partir das dinâmicas de generificação e racialização das práticas do cozinhar/comer engendradas por gestoras ordinárias. Para isso, problematizamos o organizar numa ontologia processual e micropolítica que permite evidenciar como fissuras do cotidiano atravessam e ensejam rearticulações práticas de cunho tático e estratégico. Foram captadas narrativas de gestoras ordinárias negras, analisadas com a técnica dialógica narrativa, na busca por articular as vozes das sujeitas participantes às das autoras do texto, do referencial teórico adotado e do leitorado. Nossos achados desvelam a cozinha como espaço organizativo central para compreensão dessas práticas ordinárias (ainda que por vezes invisibilizadas e silenciadas), em processos heterogêneos de apreensão do saber-fazer culinário, bem como em dinâmicas articulações táticas e estratégicas para fins de sobrevivências. Devido ao momento em que a pesquisa de campo se deu, as narrativas descrevem essas articulações em meio aos impactos causados pela pandemia de covid-19 no cotidiano das gestoras pesquisadas. Empiricamente, esse estudo contribui ao mostrar a heterogeneidade no organizar das práticas que constituem a gestão ordinária, e que, no contexto de uma pandemia, produziram narrativas que destoam de uma narrativa hegemônica de ruptura, mas que, ainda assim, impactam o cotidiano e ensejam reconfigurações. Teoricamente, contribuímos ao mostrar como as práticas articulam no cotidiano repertórios aparentemente opostos como privado e público, sociabilidade e negócio. Avançamos, portanto, na compreensão do organizar das práticas como constituintes da gestão ordinária, em especial, a partir dos atravessamentos produzidos pelas categorias raça e gênero que engendram táticas e estratégias de sobrevivência.
Modelagem espacial para identificação de áreas potenciais à geração de poluição difusa na Bacia Hidrográfica do Rio Cotia – SP
Authors: Toniolo Bruno Pereira , Nery Liliane Moreira , Silva Darllan Collins da Cunha e
Published: February 2024

Resumo A escassez de dados referentes à poluição difusa nas bacias hidrográficas brasileiras dificulta a criação de modelos que permitam avaliar a geração de fontes poluidoras. Esse trabalho objetivou delimitar as áreas com potencial de poluição difusa, assim como mensurar esta carga poluente, aplicando-se dois métodos: o Índice de Potencial Não Pontual (PNPI) e o Modelo Matemático de Correlação Uso do Solo e Qualidade da Água (MQUAL). Esses dois modelos foram trabalhados em Sistema de Informações Geográficas (SIG) analisando Áreas de Contribuição (AC’s) na Bacia Hidrográfica do Rio Cotia (SP). O PNPI médio da bacia hidrográfica foi classificado como baixo potencial de poluição difusa, porém, as áreas de alto potencial aumentam especialmente nas margens do Rio Cotia. O MQUAL indicou um aporte diário de poluentes significativo: aproximadamente 10 kg de Fósforo Total (FT), 200 kg de Nitrogênio Total (NT) e 8 toneladas de Sólidos Suspensos Totais (SST). Os usos e ocupações da terra que mais contribuem para a poluição difusa são: área urbana e indústria, de modo que a análise setorizada da bacia hidrográfica permitiu categorizar áreas de maior potencial de poluição difusa, uma ferramenta útil para compreensão dos efeitos da antropização nos recursos hídricos.
PREPARATION AND THERMOELECTRIC PROPERTIES OF Cux/Bi2Te3 COMPOSITES
Authors: Li Fanguo , Lu Shihong , Liu Luteng , Li Junping , Zhang Zhang , Yan Peimei , Pan Yile
Published: February 2024

Thermoelectric materials are the use of solid internal carriers to realize mutual conversion between thermal energy to electrical energy. Bismuth telluride (Bi2Te3) based thermoelectric materials are relatively mature near low temperatures. Due to the excellent conductivity of copper, the method of combining copper with a thermoelectric matrix to produce thermoelectric composite materials with better thermoelectric properties has always been a research focus in thermoelectric composite materials. Bismuth telluride thermoelectric composite materials (Cux/Bi2Te3) samples with different mass percentages of purity (Cu) powder were prepared by spark plasma sintering (SPS) method. The influences of the Cu with different incorporation ratios on the performance of Cux/Bi2Te3 thermoelectric composites were investigated, such as differential thermal conductivity, thermal conductivity, Seeback coefficient, and ZT values. The Cux/Bi2Te3 thermoelectric composites with Cu chemical composition of 0.005 exhibited excellent Seebeck coefficients and ZT value at the heat source temperature of 325 K. The values are -289.46 μV/K and 1.69, respectively. The value of ZT is improved by about 2 times, compared with Bismuth telluride Bi2Te3 thermoelectric materials.
THERMAL MANAGEMENT OF LITHIUM-ION BATTERY PACKS BY USING CORRUGATED CHANNELS WITH NANO-ENHANCED COOLING
Authors: Selimefendigil Fatih , Can Aykut , Oztop Hakan Fehmi
Published: February 2024

In this study, a cooling system using corrugated cooling channels and Al2O3-Cu/water hybrid nanofluid is offered as the battery thermal management system (BTMS) for prismatic Li-ion batteries. A computational model built based on the finite element approach uses hybrid nanofluid at solid volume fractions ranging from 0 to 2% at various Reynolds numbers. The cold plates are corrugated and have a variety of square grooves positioned between prismatic Li-ion battery cells. The maximum temperature decreases as the volume fraction of solid nanoparticles and the number of corrugated cooling channels increases. When cases of using lowest and highest number of cooling channels are compared, maximum temperature reduction is found as 3.07 K when using water and 1.86 K when using Al2O3-Cu/water hybrid nanofluid (at the largest solid volume fraction). The number of square grooves in the cooling channels does not have any significant impact on the temperature drop when using nanofluid at the highest solid volume fraction.
Impact of Covid-19 on motorized transport modes in Tehran: competition or complementarity?
Authors: Karimi Sina , Samadzad Mahdi , Lesteven Gaele
Published: February 2024

The Covid-19 pandemic had a significant impact on people's travel behaviour and their perception of various transportation modes. This paper presents the results of two cross-sectional surveys conducted in Tehran, Iran, during and after the pandemic. Multivariate ordered logit modelling is used to identify factors that influence usage and to explore their interrelationships by analysing correlations among the utility of the ordered frequency of use of the private car, public transportation, ride-hailing and collective line taxi. Socioeconomic characteristics contribute significantly. Low-income individuals were more likely to use public transport during the pandemic, whereas university students and private sector employees were more prone to use ride-hailing. Women tended to use ride-hailing more, especially in the post-pandemic period. The findings suggest that while, on the whole, usage has increased for all modes in the post-pandemic period, in terms of commuting modal share, metro has gained substantially and private car has lost. Ride-hailing proved highly resilient in Tehran's mobility landscape. Correlation analysis indicated a clear contrast between private cars and public transport/collective line taxis, which is further heightened in the post-pandemic period. Although ride-hailing complements both public transport and collective line taxis, it does not exhibit meaningful correlations with the private car.
ENVIRONMENTAL ASSESSMENT OF THE STATE OF SOILS BY BIOINDICATION METHODS
Authors:   Kyrgyz National Agrarian University named after K.I.Skryabin, Aidyralieva Chynara , Khudaibergenova Bermet ,   International Higher School of Medicine, Terekhova Vera ,   M.V.Lomonosov Moscow State University
Published: February 2024

Biotesting of soils in various districts of Bishkek was carried out. The sections of the western, eastern and southern parts of the city, characterized by different traffic congestion, were surveyed. Test cultures of freshwater crustaceans Daphnia magna and ciliates Paramecium caudatum were used to determine soil toxicity. Cultivation water was taken for control. The experiments were carried out in triplicate. The cultures were placed in a climatostat for 120 hours. The survival rate and sensitivity of test cultures were determined. Mathematical integral calculation methods were used to determine the degree of toxicity in the soil. Survival of bioindicator organisms varies from less toxic to acutely toxic to test systems. The cleanest area is the territory of the southern part of the city, in which there is a park area. The methods of bioindication of the state of soils used in this study make it possible to obtain preliminary reliable information on the state of soil ecosystems and are one of the aspects of the Triad approach in assessing environmental pollution.
COPYRIGHT ISSUES ASSOCIATED WITH TEXT WORKS OF THE CHATGPT CHATBOT
Authors:   Goethe University Frankfurt, Albanov Nurzhan
Published: February 2024

This paper briefly discusses the problematic issues of copyright for works created by the most popular and fastest growing chat bot in the history of mankind, ChatGPT, which uses artificial intelligence technologies. Determining the authorship of ChatGPT works is a complex and urgent task, which should also be resolved within the framework of the copyright law of Kyrgyzstan. With the help of formal legal and comparative legal methods, the author analyzes the existing main approaches to solving this problem: recognition of authorship for ChatGPT itself, for its developer, or for users. Taking into account the weaknesses of these approaches, the author is inclined to conclude that it is more correct to provide a separate legal regime for the work results of these technologies. Given the dynamic growth in the number of ChatGPT users among the citizens of Kyrgyzstan, this approach will make it possible to adapt domestic legislation to modern technological realities, reduce potential conflicts and streamline legal issues in the field of intellectual property.
THE PROBLEM OF ACCULTURATION AND INTEGRATION OF THE KYRGYZ MULTIETHNIC SOCIETY: TOLERANCE, PREJUDICE AND DISCRIMINATION OF NATIONAL MINORITIES
Authors:   Kyrgyz National University named after Jusup Balasagyn, Kamchybekov Myrza
Published: February 2024

This article presents the results of a study that is certainly important for revealing the topic of self-understanding. Living in the ethno-cultural conditions of a young sovereign state, on the one hand, has a similar impact on the development of self-understanding of personal and social identity both among representatives of the titular ethnic group of Kyrgyzstan and other large ethnic groups living in modern Kyrgyzstan, namely, the Ideal Self and a positive attitude towards other groups play a central role in the formation of I am an Identity. The issues of xenophobia, xenophilia, and control of beliefs should be taken into account when developing self-understanding of personal and social identity of representatives of other peoples living in Kyrgyzstan. Without finding a balance between the Ideal Self and the Real Self, xenophobia and xenophilia, the process of becoming a balanced Self-Identity can be extremely difficult for representatives of other peoples living in Kyrgyzstan, which will inevitably lead to ethnic conflicts, clashes on national grounds.
DEEP REINFORCEMENT LEARNING ON STOCK DATA
Authors:   Ala-Too International University, Nurmuhammet Abdullayev
Published: February 2024

This study proposes using Deep Reinforcement Learning (DRL) for stock trading decisions and prediction. DRL is a machine learning technique that enables agents to learn optimal strategies by interacting with their environment. The proposed model surpasses traditional models and can make informed trading decisions in real-time. The study highlights the feasibility of applying DRL in financial markets and its advantages in strategic decision- making. The model's ability to learn from market dynamics makes it a promising approach for stock market forecasting. Overall, this paper provides valuable insights into the use of DRL for stock trading decisions and prediction, establishing a strong case for its adoption in financial markets. Keywords: reinforcement learning, stock market, deep reinforcement learning.
USING PEDAGOGICAL SITUATIONS AS A METHOD OF FORMING PROFESSIONAL AND SPECIAL COMPETENCIES
Authors:   Al-Farabi Kazakh National University, Bekkozhanova Culnar , Chaldanbaeva Aigul ,   Kyrgyz State University named after I. Arabaev
Published: February 2024

In this article, pedagogical situations are used as a way to form professional and special competencies. The decision of pedagogical situations by future teachers can be influenced by cognitive distortions that impede the development of objective, adequate pedagogical actions and, accordingly, inhibit pedagogical communication between the teacher and the future teachers. The solution to the pedagogical situation is carried out in individual and group formats. Depending on the nature of the future teachers' activities, we distinguish pedagogical situations of two levels: 1) technological - solving the situations in accordance with the methods of problem-based teaching; 2) improvisational - the solution of the pedagogical situation and its implementation coincide in time. This article substantiates the main stages of experimental research on testing the hypothesis and solving the set objectives, reveals the logics and describes the methodology for conducting experimental work, presents its results and formulates conclusions.
UCB strategies and optimization of batch processing in a one-armed bandit problem
Authors: Гарбарь Сергей Владиславович , Garbar Sergey , Колногоров Александр Валерианович , Kolnogorov Alexander , Лазутченко Алексей Николаевич , Lazutchenko Alexey
Published: February 2024

We consider a Gaussian one-armed bandit problem, which arises when optimizing batch data processing if there are two alternative processing methods with a priori known efficiency of the first method. During processing, it is necessary to determine a more effective method and ensure its preferential use. This optimal control problem is interpreted as a game with nature. We investigate cases of known and a priori unknown variance of income corresponding to the second method. The control goal is  considered in a minimax setting, and UCB strategies are used to ensure it. In all the studied cases, invariant descriptions of control on a horizon equal to one are obtained, which depend only on the number of batches into which the data is divided, but not on their full number. These descriptions allow us to determine approximately optimal  parameters of strategies using Monte Carlo simulation. Numerical results show the high efficiency of the proposed UCB strategies.
Beyond symmetrical binaries: The emergence of the constitutional recognition of transgender persons in Zimbabwe with reference to Nathanson v Mteliso & Others
Authors: Magashula Kutlwano Pearl , Ngwena Charles
Published: February 2024

In this case discussion we explore the constitutional and human rights implications of a decision of a High Court of Zimbabwe in Nathanson v Mteliso & Others for the recognition of transgender identity. The Court found that the arrest and detention of a transgender woman on the claim that she was a man who had entered a women's toilet were unlawful. It is argued that while the decision stops well short of a comprehensive engagement with the intersection between gender diversity and fundamental rights, it nonetheless is progressive. The decision should be understood as standing for the proposition that transgender persons are entitled to rights guaranteed in the Constitution and international human rights law.
Saul: The State Builder
Authors: Bar Shaul
Published: February 2024

This article takes a closer look at Saul's achievements as the first king of Israel. There are scholars who minimize Saul's accomplishments as the king who transformed Israel into a monarchy. This article will demonstrate that Saul laid the foundation of monarchy that would ultimately be fully developed under David and Solomon. It was Saul who introduced a new class of officials and functionaries at his court. As a military hero, he laid the foundation of a skilled army and introduced a new weapon, and he was the first to use protective gear. He also established two units of bodyguards. States cannot exist in the fullest form if they do not have the power of taxation; therefore, it was Saul who introduced state taxes. As a religious leader, Saul established a cultic centre in Nob and battled against idolatry. Independent states have capital, so after Saul's successful campaign against the Philistines and their expulsion from the Benjaminite territory, Saul established his capital at Gibeah.
Gynandromorph of the squash bee Eucera (Peponapis) pruinosa (Hymenoptera: Apidae: Eucerini) from an agricultural field in western Pennsylvania, USA
Authors: Jones Laura , Kilpatrick Shelby , López-Uribe Margarita
Published: February 2024

Gynandromorphs are anomalous individuals that are genetically chimeric and express both male and female phenotypes. Here, we describe the first record of a mosaic gynandromorph of the squash bee Eucera (Peponapis) pruinosa (Say) from a single specimen collected from western Pennsylvania, United States of America (USA). We discuss the known developmental mechanisms resulting in gynandromorphism and how parasitism or environmental contaminants may instigate these mechanisms in wild bee individuals.
The Impact of English Lexical Categories on Modern Colloquial Sinhala Language With Special Reference to Neologism and Borrowing
Authors: Gamage Upul Priyantha , Dilani Nipunika
Published: February 2024

This study was carried out with the main objective of investigating the impact of the English language lexeme on modern colloquial Sinhala and exploring the specific mechanisms of neologism and borrowing. Among the major findings, the impact of English on colloquial Sinhala has been identified in the processes of the acronym, coinage, alphabetic abbreviation, clipping, blending, generification, and borrowing as the dominant processes that come under the umbrella term of neologism. As borrowing mechanisms, loan words, loan shifts and loan blends followed by other subsequent mechanisms like loan translations, loan renditions and loan creations have been established with colloquial Sinhala. Participatory observation, chunk recordings and secondary data sources are methodological instruments of this research. The English-influenced lexical items in modern colloquial Sinhala have been critically analysed and categorized logically with the final concluding remark that the English language's influence on modern colloquial Sinhala is inordinate with special reference to lexical categories.
New records, validated name and redefinition in Azolla (Salviniaceae, Pteridophyta) from Costa Rica
Authors: Rojas Alvarado Alexander Francisco , Piedra Castro Lilliana María , Icaza Osorio Carolin , Castillo Chinchilla Maikol
Published: February 2024

In studies of herbarium specimens and living material, we observed that several species in the genus Azolla Lam. are present in different wetlands of Costa Rica, which instigated the search for applicable names of each taxon. According to a morphological and reproductive review, in addition to the species registered and validated, three species were recognized: Azolla filiculoides Lam., A. imbricata (Roxb. ex Griff.) Nakai and A. pinnata R. Br. The first species is the only native species from America, the second is from Asia, and the third is from Africa and Australia. The use of Azolla for fertilizing rice fields and animal feed has led to the introduction of species such as A. imbricata and A. pinnata to countries such as the United States, Colombia, and Ecuador. After their introduction, it is likely that aquatic and migratory birds were responsible for the spread of these species to other countries such as Costa Rica.
Review of Puddifoot, K. (2021). How Stereotypes Deceive Us. Oxford University Press. 214 p.
Authors: Thomine Lou
Published: February 2024

This text is a critical review of Katherine Puddifoot's book, How Stereotypes Deceive Us (2021).
Prevalencia y factores asociados al burnout académico en estudiantes de instrumentación quirúrgica en el contexto de COVID-19
Authors: Arias-Ortiz Wanderley Augusto , Ibáñez-Pinilla Edgar Antonio
Published: February 2024

Introducción: la pandemia por COVID-19 ha generado un impacto significativo no solo en la población contagiada, sino también en la educación y sobre todo en la salud de los estudiantes. Factores como las cuarentenas, las clases virtuales y la carga de trabajo pueden ser predisponentes para padecer síndrome de burnout académico. Objetivo: identificar la prevalencia de síndrome de burnout académico (SBOA) y factores asociados a su ocurrencia en estudiantes de instrumentación quirúrgica en contexto de la pandemia por COVID-19. Métodos: se realizó un estudio de corte transversal en estudiantes de Instrumentación Quirúrgica de una institución privada de la ciudad de Bogotá. Se empleó el MBI – SS (Maslach Burnout Inventory – Student Survey) y variables de interés. Se calcularon estadísticos descriptivos, OR (Odds Ratio) y se realizó un modelo de regresión logística, también se calcularon correlaciones de Spearman. Resultados: se identificó una prevalencia de SBOA de 75,1%, la actividad física se presenta como factor protector OR=0,22 IC95% (0,064 – 0,784) p = 0,007, también se encontró una correlación negativa entre el ejercicio y dimensiones como el agotamiento (ρ=-0,294; p<0,001) y el cinismo (ρ=-0,253; p<0,001). Una limitación significativa fue la escasa bibliografía de estudios analíticos en el contexto de instrumentación quirúrgica. Conclusiones: este estudio presenta un hallazgo relevante puesto que demuestra la influencia de la actividad física en la ocurrencia de SBOA en un contexto de pandemia.
Anticoagulación en escenarios clínicos inusuales: revisión narrativa de la literatura
Authors: Arango Alejandro , Herrera-Ramos Rafael
Published: February 2024

Introducción: en la práctica clínica es frecuente el uso de anticoagulantes en escenarios específicos, como enfermedad tromboembólica venosa o fibrilación auricular, para los cuales existen pautas de manejo claramente establecidas. Sin embargo, hasta la fecha, no hay guías clínicas unificadas para el manejo de trombosis en escenarios inusuales, por lo que significan un verdadero reto terapéutico.Objetivo: revisar las indicaciones de anticoagulación y sus esquemas en situaciones clínicas inusuales con base en la evidencia disponible.Métodos: se realizó una revisión de la literatura desde el año 1997 al 2022, en la que fueron considerados los términos MeSH correspondientes para anticoagulación, anticoagulantes orales, embolia y trombosis. Se extrajo y sintetizó la información de manera estructurada.Resultados: en síndrome nefrótico se recomienda el uso de warfarina, aun cuando existen alternativas como las heparinas de bajo peso molecular, aspirinas o los anticoagulantes orales directos. Para trombo intracavitario, el medicamento de elección es la warfarina y se ha demostrado una eficacia equivalente para los anticoagulantes orales directos. Para la enfermedad arterial periférica según el perfil individual, se demostró el beneficio del rivaroxabán a dosis de protección vascular + aspirina en desenlaces cardiovasculares adversos mayores.Conclusiones: la atención de estos escenarios requiere una adecuada valoración clínica y elección del tipo de anticoagulante asegurando al máximo la reducción de trombosis y de sangrado.
Comparative analysis of PM10 particulate matter
Authors: Rojano Alvarado Roberto , Pérez Montiel Jhonny , Deluque Jorge
Published: February 2024

This paper presents the concentrations of PM10 in the urban area of Riohacha, Colombia. Two simultaneous sampling methods are compared. The high-volume sampler PM10, Graseby Andersen and a nephelometer DataRam 4 (Thermo Electron corporation). Data was collected over three months in two sites (Desalud and Bienestar) of the urban area of Riohacha. The results show that the average PM10 concentration was 23.64 μg/m3 and 36.86 μg/m3 in the two stations using the DataRam 4 and 25.09 μg/m3 and 36.64 μg/m3 using the high-volume sampler PM10. The correlation analysis shows a positive consistency for all the pairs in these two monitoring methods: R2 = 0.5377 for the season Desalud and R2 = 0.7276 for the season Bienestar. The coeffi cient increased when the results were correlated to the days with RH less than 70%: R2 = 0.89 station Desalud and R2 = 0.69 Bienestar Station. The results showed that the photometric method (DataRam 4) can be used to determine concentrations of particulate matter PM10 at Riohacha environmental conditions.
Adsorption evaluation of Rhodamine WT, lithium and chloride in batch reactors inoculated with anaerobic sludge
Authors: Pérez Jhonny , Rincón Nancy , Bracho Nibis
Published: February 2024

The aim of this study is to evaluate trace’s mass adsorptive property of anaerobic sludge in batch reactors. Three types of tracers were prepared, i.e. Rhodamine WT (RWT), lithium and chlorine. 4 reactors of one liter were inoculated with 200 mL (20%) of anaerobic granular sludge from a local brewery and fed with municipal wastewater (ARM) from Maracaibo city. The systems were considered stable when the biogas production was between 35.5 and 40.5 mL/d. At that moment the tracers were added to either reactor. The alkalinity were measured from 360-430 mgCaCO3/L, suffi cient to maintain the pH in the range close to neutral (6.41 to 6.62). The results show that RWT tracer ́s mass was favorable for adsorption and according to Langmuir adsorption model it increased with increasing concentration. Adsorption (qe) varied from 1.777 E-5 - 3.462 E-5 mgWRT/gsludge. No adsorption was observed with lithium and chlorine.
Software agents based simulation for the assessment of technical indicators
Authors: Escobar Alejandro , Moreno Julián , Múnera Sebastián
Published: February 2024

Considering the inconvenients that the assessment of technical indicators may handle in a real stock market, an agent based simulation model is presented in this document as an alternative where two micro aspects are considered for this kind of systems: agents’ decision making mechanisms and the continuous double auction protocol through which transactions are made. In particular, the following indicators are analyzed in an empirical way: Simple, Double and Triple Weighted Moving Averages; Momentum, ROC, MACD and RSI throughout a series of simulations for 280 agents adding also external factors that may affect prices by using a Brownian motion model.
Design of the drive mechanism for an anthropomorphic robotic finger
Authors: Portilla Flores Edgar , Piña Quintero Roberto , Avilés Sánchez Oscar , Niño Suárez Paola , Molin Vilchis María
Published: February 2024

Mechanisms may be used in the design of robotic fingers, in order to obtain drive systems which can be used for gripping or manipulating objects. In this work, a design methodology for a drive mechanism of an “anthropomorphic finger” is presented. The finger was previously developed by computational tools (CAD) at the UMNG-Colombia. The proposed methodology takes into account the mathematical relationships between the mechanical elements of the drive mechanism to carry out a dimensional synthesis, taking into account that the mechanism must fulfi ll the anthropometric characteristics of a human hand based on ten numerical positions (which were obtained from a previous UMNG work). Numerical simulation results and CAD modeling for the drive mechanism are presented. Finally, a discussion about results is included.
The knowledge dependence and structure modelling in work processes. An application to the Cuban software industry
Authors: Macías Gelabert Carlos Rolando , Aguilera Martínez Allán Francisco
Published: February 2024

This paper presents a method for modelling integrated knowledge fl ows into a software process in a Cuban organization located at Villa Clara province following a selection, registration and analysis sequence. The principle of those processes is the application area of knowledge. From that point of view, dependences between activities and their profi le are found fi rst, thus the required resources are identifi ed and the tacit or explicit bearers are defi ned too. The support provided to the activities for the knowledge core process is assessed and the coherence of that process is quantitative and qualitatively analyzed.
Unsupported sulfides obtained from high specific area mixed oxides as hydrotreating catalysts
Authors: Amaya Sandra , Licea Yordy , Salamanca Maurin , Faro Arnaldo , Echavarría Adriana , Palacio Luz Amparo
Published: February 2024

Several bimetallic Ni-Mo, Co-Mo and Co-W materials were prepared by co-precipitation and a Ni-W material through hydrothermal synthesis. The characterization by X-ray diffraction (XRD) of molybdates confirmed the formation of layered fy phase, while the tungstates showed both fy semi-crystalline and wolframite. The thermal analyses (TGA and DTA) of these materials showed phase transition around 400°C, excepting by CoMofy to 350°C; these temperatures were selected to calcine the bimetallic precursors to obtain mixed oxides, which exhibited high specific surface areas as compared to analogous materials reported by different synthesis pathways. The Fourier transformed infrared spectroscopy (FTIR) confirmed the phase formation of the species in precursors and mixed oxides. The catalytic activity of the sulfurated mixed oxides was simultaneously evaluated in the hydrodesulphurization (HDS) of dibenzotiophene (DBT) and the hydrogenation (HYD) of tetraline. Results showed a similar behavior to commercial catalysts. The effect of promotors (Ni and Co) is discussed.
System identification of a DC motor using PSO algorithm
Authors: Duarte César , Quiroga Jabid
Published: February 2024

In this paper an application of Particle Swarm Optimization (PSO) algorithm is presented as strategy for parameters determination of a grey box system. This system identification process is implemented based on the open loop step response for a DC motor. The vector space is bounded via step time response to speed up the parameter identification. The PSO algorithm is implemented and validated using the PSOt Matlab® toolbox developed by Brian Birge.
On classification improvement by using an approximate discriminative hidden Markov model
Authors: Carvajal González Johanna , Sarria Paja Milton , Castellanos Domínguez Germán
Published: February 2024

HMMs are statistical models used in a very successful and effective form in speech recognition. However, HMM is a general model to describe the dynamic of stochastic processes; therefore it can be applied to a huge variety of biomedical signals. Usually, the HMM parameters are estimated by means of MLE (Maximum Likelihood Estimation) criterion. Nevertheless, MLE has as disadvantage that the distribution it is wanted to adjust is the distribution of each class, besides the models and/or data of other classes do not participate in the parameter re-estimation, as a result, the ML criterion is not directly related to reduce the error rate; it has led to many researchers to choice other training techniques known as discriminative training, including maximum mutual information (MMI) estimation. In this work, we carry out an EEG classification in order to compare HMM trained with both ML estimation and MMI estimation. The obtained results show a better performance in all database used.