bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanisms of identification and social differentiation in player–avatar relations
Authors: Bowman Nicholas David , Banks Jaime , Downs Edward
Published: October 2021

The connection between player and avatar is central to digital gaming, with identification assumed to be core to this connection. Often, scholarship engages single dimensions of identification, yet emerging perspectives reveal that identification is polythetic (PID) – comprising at least six sufficient (but not necessary) mechanisms. The current study investigates the intersections of polythetic identification mechanisms and two different approaches to player–avatar sociality (as a marker of differentiation): general types of player–avatar relationships (PARs) and discrete dimensions of player–avatar interaction (PAX). Secondary analysis of an existing dataset of gamers revealed two main findings: (1) players reported overall diminished identification when they engaged in non-social relations with their avatar, and (2) increased liking and perspective-taking were most likely with human-like social relations, which require differentiation from rather than identification as the avatar. These findings are interpreted to suggest that player–avatar identification and differentiation are conceptually independent relational phenomena that are experientially convergent – some relational orientations and dynamics are associated with distinct combinations of identification mechanisms.
Esport Play: Anticipation, Attachment and Addiction in Psycholudic Development, Veli-Matti Karhulahti (2020)
Authors: Shelton James
Published: October 2021

Review of: Esport Play: Anticipation, Attachment and Addiction in Psycholudic Development, Veli-Matti Karhulahti (2020)

New York: Bloomsbury Academic, 206 pp.,

ISBN 978-1-50135-934-7, h/bk, £72.00
Dans la peau des gamers: Anthropologie d’une guilde de World of Warcraft (Inside the Gamers: Anthropology of a Guild of World of Warcraft), Olivier Servais (2020)
Authors: Kollasch Stanley Y.
Published: October 2021

Review of: Dans la peau des gamers: Anthropologie d’une guilde de World of Warcraft (Inside the Gamers: Anthropology of a Guild of World of Warcraft), Olivier Servais (2020)

Paris: Karthala, 344 pp.,

ISBN 978-2-81112-630-8, p/bk, €25.00
Crime Detection Using Sentiment Analysis
Authors: Khan Ruba , Siddiqui Shadab , Rastogi Abhishek , Ali Ansari Zulfikar
Published: October 2021

Women and girls have been subjected to a great deal of violence and harassment in public locations around the country, ranging from stalking to abuse harassment and assault. This research paper examines the role of social media in improving women's safety in Indian cities, with a focus on the use of social media websites and apps such as Twitter, Facebook, and Instagram. This research also looks at how ordinary Indians can develop a sense of responsibility in Indian society so that we can focus on the protection of women in their surroundings. Tweets on the safety of women in Indian cities, which often include images and text as well as written phrases and quotations, can be used to send a message to the Indian youth culture and encourage them to take harsh action and punish those who harass women. Twitter and other Twitter handles that feature hash tag messages are extensively used throughout the world as a channel for women to share their feelings about how they feel when going to work or travelling by public transportation and what is their mental condition when they are surrounded by unknown males, and do they feel safe or not?
New results on the existence of ground state solutions for generalized quasilinear Schrödinger equations coupled with the Chern–Simons gauge theory
Authors: Xiao Yingying , Zhu Chuanxi
Published: October 2021

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Controle de temperatura do concreto asfáltico em restauração rodoviária: seu impacto nos índices iniciais de irregularidade longitudinal do pavimento
Authors: Pavi Débora Raquel , Pereira Deividi da Silva , Bueno Lucas Dotto , Specht Luciano Pivoto , Zucchi Fernando , Antocheves Rogério Cattelan
Published: October 2021

A irregularidade do pavimento está relacionada à percepção de conforto do usuário. Logo, sua quantificação é fundamental, inclusive na fase executiva, para mitigar seus impactos no desempenho dos pavimentos. Neste contexto, este trabalho objetivou monitorar a irregularidade longitudinal antes e após a execução de uma restauração rodoviária, onde foi avaliada a redução efetiva do IRI, e identificadas as singularidades construtivas que impactaram neste índice, a partir do acompanhamento detalhado do processo executivo, com ênfase no monitoramento da temperatura do CA aplicado com câmera termográfica. Durante este acompanhamento, foram identificadas algumas situações extraordinárias determinantes para os picos de IRI, destacando-se a distribuição irregular de massa pela vibroacabadora; acabamento manual da superfície; execução incorreta das juntas transversais; e os diferenciais térmicos nos panos de execução. As análises a partir do HDM-4, relacionando valores de IRI com os custos operacionais dos usuários, indicaram que as falhas construtivas observadas afetaram sensivelmente seus custos.
Panorama da educação popular no Brasil e os movimentos sociais
Authors: Caetano Rodrigo da Costa , Martínez Silvia Alicia , Silva Michelle Nascimento Weissmann da
Published: October 2021

Educação popular e Educação Ambiental Crítica não são sinônimos. No entanto, apresentam similitudes associadas às práxis pedagógicas, visando à transformação social na perspectiva freiriana. Também estão abertas às trocas de conhecimentos e ao desenvolvimento das comunidades a partir da problematização e do protagonismo para a emancipação. A nossa principal motivação é trazer para reflexão a relação da educação popular com os movimentos sociais, aludindo às concepções e temáticas relevantes, além de levantarmos contribuições à Educação Ambiental Crítica no contexto da gestão pública. A metodologia do trabalho conta com a dialética e a abordagem qualitativa, conferindo o tom para a pesquisa bibliográfica a ser complementada por experiências do projeto Territórios do Petróleo. Há contrapontos à ordem social que vigora no modelo de desenvolvimento pautado no capitalismo, bem como apontamentos quanto às ações pedagógicas e à politização dos sujeitos da ação educativa em prol da superação de limites.
A educação popular na internet em tempos de pandemia
Authors: Guindani Evandro Ricardo , Guindani Joel Felipe , Koga Yáscara Michele Neves , Pastre Tatiana Fraga , Leite Deivis Eduardo Alves
Published: October 2021

Este texto apresenta uma experiência de produção de conteúdo educativo durante o período da pandemia COVID-19 que assola o nosso país desde 2020. A necessidade de um maior diálogo com os alunos e com a comunidade provocou a iniciativa da criação de novas estratégias comunicacionais. Partindo da concepção de educação popular, um grupo de professores(as) universitários e acadêmicos(as) criou o projeto Educação popular nas redes com o objetivo de produzir textos e vídeos reflexivos fundamentados em conceitos teóricos, porém de fácil compreensão para todas as pessoas. O projeto se concretizou por meio da produção e publicação de vídeos e textos para o YouTube, redes sociais (Facebook) e aplicativos de conversa (WhatsApp). Os resultados demonstraram que houve uma aceitação do público, e o material produzido consegue dialogar – por meio de conceitos científicos – com a comunidade que está fora do ambiente acadêmico.
A educação como direito fundamental do/a estudante na pandemia da COVID 19: o ensino remoto e a realidade de escolas públicas de um município do interior baiano
Authors: Carvalho Cosmerina de Souza de , Cruz Lilian Moreira Cruz , Coelho Lívia Andrade
Published: October 2021

Este artigo discute a temática da educação no período pandêmico de 2020, com foco na realidade das escolas públicas, de um município do interior do sul da Bahia. Nessa perspectiva, objetivou analisar o contexto da educação escolar em cenário de pandemia. Para tanto, optamos por uma pesquisa com abordagem qualitativa, do tipo exploratória e descritiva; utilizamos como instrumento para produção de dados um questionário, aplicado no formato virtual, que foi respondido por 07 docentes da Educação Básica. Os resultados revelam as desigualdades sociais e o empobrecimento do ensino/aprendizagem de estudantes da escola pública, a precarização da profissão docente e a necessidade de ações imediatas com vistas a garantir o direito a educação.
A educação a distância e o ensino emergencial em tempos de pandemia: a alternativa do ensino remoto e outras variantes
Authors: Sampaio Inayá Maria
Published: October 2021

Neste artigo, resultado de um estudo bibliográfico, propomos discutir a Educação a Distância (EaD) e o ensino emergencial remoto no Ensino Superior, diante do contexto da pandemia do Novo Coronavírus (Sars-CoV-2/COVID-19). Para isso, abordamos a atuação e a formação do professor na atual conjuntura de políticas educacionais. Nesse sentido, pretendemos discutir as políticas de EaD e suas relações com as mudanças no âmbito educacional, além de analisarmos a atuação docente nessa modalidade educativa e no ensino emergencial a distância. Ademais, observamos variantes entre eles em uma nova configuração do trabalho, que se utiliza de plataformas e ferramentas digitais e se intensifica para “amenizar” os danos no processo educacional.
Política educacional e o direito à educação: estudo da efetivação na rede pública municipal
Authors: Marinho Delyana Santana de Britto , Pimentel Gabriela Sousa Rêgo
Published: October 2021

Este artigo tem como objetivo discutir a efetivação do direito à educação no acesso, permanência e aprendizagem do ensino fundamental das escolas públicas do município de Barreiras-BA. Trata-se de pesquisa qualitativa, por meio de análise documental da legislação educacional, aplicação de questionário aos gestores e análise dos indicadores educacionais. Os resultados viabilizam a instrumentalização do direito à educação, ações para concretização e lacunas a suprir, bem como, políticas de viabilização de vagas para acesso, permanência e controle de evasão escolar. Os indicadores apontaram aprendizagem inadequada, com baixa melhoria no aprendizado do 5º ano e, também, inadequada do 9º ano. Reflete uma fragilidade do aprendizado, e aponta como necessário o enfretamento da vulnerabilidade educacional no sistema municipal de Barreiras-BA.
Entrevista - Educação e sociedade: uma reflexão sobre os processos educativos da classe trabalhadora no sistema capitalista - Prof. Dr. Paulino José Orso
Authors: Nunes Klívia de Cássia Silva , Rezende Valéria Moreira
Published: October 2021

A entrevista concedida pelo professor Paulino José Orso para abertura do Dossiê intitulado: Direito à educação básica e superior em tempos de pandemia – políticas de permanência e qualidade, apresenta reflexões sobre o direito à educação, em especial no momento presente, caracterizado pela intensa crise política e sanitária, em decorrência da pandemia causada pela Covid-19, de repercussão mundial e potencializada pelos desmandos do governo brasileiro. O autor nos apresenta um modelo de formação humana pautado na perspectiva crítica, criativa e transformadora, engendrada nas novas relações sociais. A entrevista nos convida a uma importante reflexão e nos conclama à resistência e crítica ao desbarate das instituições sociais, especificamente a escola, em tempos de acirradas lutas sociais. Ressalta, ainda, a importância da Pedagogia Histórico-Crítica para compreensão da realidade concreta que se apresenta no projeto capitalista para a classe trabalhadora.
Entrepreneurial Mindset, Orientation, and Performance of University Students in Indonesia
Authors: Sutanto Eddy Madiono , Lau Evan , Ezra Andreas
Published: October 2021

Entrepreneurship plays an important role in determining the level of economic growth of a country. This study aims are to explorethe impact of entrepreneurial mindset on innovativeness, risk-taking, competitive aggressiveness, autonomy, and proactiveness onentrepreneurial performance. This research uses Partial Least Squares Structural Equation Modeling (PLS-SEM) to analyze thedata.. It gathered data of 364 respondents, which were the bachelor students of management program of public universities inSurabaya, Indonesia. The results show that entrepreneurial mindset has a significant impact to innovativeness, risk-taking,competitive aggressiveness, autonomy, and proactiveness. It also enhances positive and significant impact to entrepreneurialperformance of the students. It implies that the entrepreneurship education of public universities in Surabaya, Indonesia succeedsto change the studentsâ€™ mindset and orientation. The government needs to increase entrepreneurship education centers andbusiness incubator centers at various universities.
Cryptocurrency Safe Haven Property against Indonesian Stock Market During COVID-19
Authors: Gunawan Mudita , Anggono Achmad Herlanto
Published: October 2021

Safe-haven assets conserve their value or grow against another asset or portfolioduring market turmoil. Indonesian stock market, represented by the Jakarta compositeÂ index (JKSE), plunged in price because of COVID-19, pushing investors to look forÂ safe-havens. The cryptocurrency began to be perceived as a store of value as indicatedÂ by the transaction volume increase; hence it was expected to be a safe haven asset.Â However, cryptocurrencyâ€™s high price volatility cast doubts on its store of valueÂ effectiveness, prompting inspection for its safe haven property as well. This researchÂ aimed to predict the assets' risk and return plus investigate whether cryptocurrencyÂ is safe haven assets against the Indonesian stock market during COVID- 19. DailyÂ closing prices of JKSE, Bitcoin, Ethereum, Litecoin, and Ripple were used, then theÂ GARCH model was implemented in the forecasting. DCC-GARCH model, followedÂ by dummy variable regression, will be applied to the return data to evaluate the safeÂ haven property. The prediction projected Bitcoin as the most profitable asset andRipple as the riskiest. The analysis and robustness test suggested that none of theseÂ cryptocurrencies were safe haven assets during the whole observation. This indicatesÂ that investors who intend to seek safe haven investments were advised againstÂ investing in these cryptocurrencies.
#Savetheinternet-Wir sind keine Bots : la mobilisation des Allemands sur YouTube contre l’article 13 de la directive européenne dite « copyright »
Authors: Chevret-Castellani Christine
Published: October 2021

Cet article porte sur la communication à des fins de mobilisation sur YouTube dont la vocation première n’est pas l’usage politique. Nous nous intéressons à la manière dont circulent des discours politiques sur ce réseau socio-numérique et comment les formes de la mobilisation peuvent être influencées par le déploiement de plates-formes. Nous analysons ici plus particulièrement comment des internautes ont contesté l’« article 13 » (devenu article 17 dans le texte final) de la directive européenne sur le droit d’auteur dans le marché unique numérique, dite « copyright », définitivement adoptée le 26 mars 2019. Des mises en ligne de vidéos de manifestations de rue en Allemagne avec pour slogans « Save the internet » et « Wir sind keine Bots » se sont multipliées sur YouTube entre le 23 et le 26 mars 2019, témoignant ainsi de la constitution d’un collectif autour d’un problème public, celui lié à la défense de la liberté d’expression. Leur observation conduit à s’interroger sur des évolutions des significations de la participation perceptibles ici à travers l’orchestration de différentes ressources numériques praxisées.
La participation dans un monde de communication
Authors: Roginsky Sandrine , Renard Damien , Dufrasne Marie
Published: October 2021

pas de résumé.
AJUSTE DE DOSE DOS MEDICAMENTOS DE ACORDO COM A FUNÇÃO RENAL EM UM HOSPITAL UNIVERSITÁRIO
Authors: Rodrigues Gisele Araújo , Da Silva Alves Jessica Wedna , Lima de Souza Regina Meira , De Vasconcelos Laís Silva , Moura Celuane Alves , Brandão Ricardo , Monte Moreira Francisca Sueli
Published: October 2021

O presente estudo avaliou a necessidade de ajuste de dose dos medicamentos de acordo com a função renal dos pacientes da clínica médica em um hospital universitário do Estado de Pernambuco. O estudo seguiu delineamento transversal. Foram analisadas as prescrições dos pacientes internados no período de setembro de 2019 a fevereiro de 2020. Nesse período, 245 pacientes tiveram suas prescrições avaliadas. Destes, 45 pacientes (18,3%) foram excluídos devido à ausência de informações sobre creatinina e 152 (62,0%) por não necessitarem ajuste da dose de medicamento, porque a função renal estava dentro dos parâmetros de normalidade. Os 48 pacientes restantes foram incluídos no estudo final, pois apresentavam função renal alterada e utilizavam medicamentos excretados por via renal. Dos pacientes, 60,4% receberam, durante a internação, pelo menos uma prescrição com dose de medicamento não ajustado de acordo com a função renal. Dentre os medicamentos com doses não ajustadas, os antimicrobianos foram os mais frequentes. Este estudo alerta para a importância do acompanhamento da função renal, principalmente quando prescritos medicamentos excretados via renal.
Desastre, memoria y materialidad: los objetos y la identidad de los armeritas 35 años después de la avalancha
Authors: Aguillón Lombana Angélica
Published: October 2021

Este artículo aborda la relación de un grupo de sobrevivientes de Armero con algunos objetos que se salvaron junto con ellos de la avalancha. De tal manera que a lo largo del texto se plantea la te-sis de que si lo que sobrevive a un desastre de esta naturaleza son sujetos y objetos, el relato emer-gente de los primeros a propósito de los segundos puede dar cuenta de la configuración identita-ria de los sobrevivientes tiempo después de ocurrido el evento disruptivo. Para corroborar dicho planteamiento se llevó a cabo un trabajo etnográfico en el que se recopilaron relatos de veinticinco sobrevivientes sobre los objetos que provienen de sus dinámicas cotidianas perdidas en el territo-rio arrasado. Dicho trabajo permitió identificar aspectos de la identidad de los armeritas, tanto en su sustrato fundante como en el que se ha ido construyendo a lo largo de estos 35 años de desa-rraigo causado por el desmantelamiento de su territorio. Los hallazgos indican que la identidad de los objetos se transforma a causa del desastre, pero más importante aún, que estos suplen de cierta manera la materialidad perdida en tanto fungen como recipientes simbólicos que activan el recuerdo mediante una conexión profunda que el individuo establece con ellos y las situaciones de la cotidianidad pasada que representan, y cuyos aspectos esenciales se proveen y se interpretan a través del lenguaje y la memoria.
Morfologías del olvido: Ocupación histórica del espacio y vulnerabilidad en el Litoral Central de Venezuela
Authors: Altez Rogelio , Urbani Patat Franco
Published: October 2021

El Litoral Central de Venezuela es una región constreñida por sus condiciones naturales y con apenas un breve espacio para el desarrollo urbano, el cual fue impulsado recién desde la década de 1950. A partir de entonces la región ofrece un aspecto unificado por vías y avenidas interconectadas de Este a Oeste, en contraposición a su condición histórica de región inconexa y con asentamientos aislados entre sí. La ocupación de este espacio desde el siglo XVI en adelante ha estado signada por los intereses de Caracas con diferentes fases, según los contextos históricos, y en ningún caso su desarrollo ha estado articulado con el ambiente donde se asientan sus poblaciones. El resultado de este proceso, especialmente desde su urbanización moderna hasta el presente, ha sido el enterramiento de la memoria local y regional, incluso físicamente, sepultando la morfología característica en beneficio de una cultura de balneario, y fundando una sociedad de espaldas a su hábitat natural y en profundas condiciones de vulnerabilidad. Este trabajo analiza este problema sobre la base de la reconstrucción histórica de ese proceso, y el estudio directo y en campo de las características morfológicas que conforman a la región.
Hybrid ANFIS-Rao algorithm for surface roughness modelling and optimization in electrical discharge machining
Authors: Agarwal N. , Shrivastava N. , Pradhan M.K.
Published: October 2021

Advanced modeling and optimization techniques are imperative today to deal with complex machining processes like electric discharge machining (EDM). In the present research, Titanium alloy has been machined by considering different electrical input parameters to evaluate one of the important surface integrity (SI) parameter that is surface roughness Ra. Firstly, the response surface methodology (RSM) has been adopted for experimental design and for generating training data set. The artificial neural network (ANN) model has been developed and optimized for Ra with the same training data set. Finally, an adaptive neuro-fuzzy inference system (ANFIS) model has been developed for Ra. Optimization of the developed ANFIS model has been done by applying the latest optimization techniques Rao algorithm and the Jaya algorithm. Different statistical parameters such as the mean square error (MSE), the mean absolute error (MAE), the root mean square error (RMSE), the mean bias error (MBE) and the mean absolute percentage error (MAPE) elucidate that the ANFIS model is better than the ANN model. Both the optimization algorithms results in considerable improvement in the SI of the machined surface. Comparing the Rao algorithm and Jaya algorithm for optimization, it has been found that the Rao algorithm performs better than the Jaya algorithm.
Improved Genetic Algorithm (VNS-GA) using polar coordinate classification for workload balanced multiple Traveling Salesman Problem (mTSP)
Authors: Wang Y.D. , Lu X.C. , Shen J.R.
Published: October 2021

The multiple traveling salesman problem (mTSP) is an extension of the traveling salesman problem (TSP), which has wider applications in real life than the traveling salesman problem such as transportation and delivery, task allocation, etc. In this paper, an improved genetic algorithm (VNS-GA) that uses polar coordinate classification to generate the initial solutions is proposed. It integrates the variable neighbourhood algorithm to solve the multiple objective optimization of the mTSP with workload balance. Aiming to workload balance, the first design of this paper is about generating initial solutions based on the polar coordinate classification. Then a distance comparison insertion operator is designed as a neighbourhood action for allocating paths in a targeted manner. Finally, the neighbourhood descent process in the variable neighbourhood algorithm is fused into the genetic algorithm for the expansion of search space. The improved algorithm is tested on the TSPLIB standard data set and compared with other genetic algorithms. The results show that the improved genetic algorithm can increase computational efficiency and obtain a better solution for workload balance and this algorithm has wild applications in real life such as multiple robots task allocation, school bus routing problem and other optimization problems.
Bone drilling with internal gas cooling: Experimental and statistical investigation of the effect of cooling with CO2 on reduction of temperature rise due to drill bit wear
Authors: Shakouri E. , Haghighi Hassanalideh H. , Fotuhi S.
Published: October 2021

Bone drilling is a major stage in immobilization of the fracture site. During bone drilling operations, the temperature may exceed the allowable limit of 47 °C, causing irrecoverable damages of thermal necrosis and seriously threatening the fracture treatment. One of the parameters affecting the temperature rise of the drilling site is the frequency of applying the drill bit and its extent of wear. The present study attempted to mitigate the effect of drill bit wear on the bone temperature rise through the internal gas cooling method via CO2 and to reduce the risk of incidence of thermal necrosis. To this end, drilling tests were conducted at three rotational speeds 1000, 2000, and 3000 r·min-1 in two states of without cooling and with internal gas cooling by CO2 through an internal coolant carbide drill bit, along with six drill bit states (new, used 10, 20, 30, 40, and 50 times) on a bovine femur bone. The results indicated that in the internal gas cooling state, as the number of drill bit applications increased from the new state to more than 50 times, the temperature of the hole site increased on average by ΔT = 2-3 °C (n = 1000 r·min-1), ΔT = 5-8 °C (n = 2000 r·min-1), and ΔT = 5-7 °C (n = 3000 r·min-1). Furthermore, the internal gas cooling method was able to significantly reduce the effect of the drill bit wear on the temperature rise of the drilling site and to resolve the risk of incidence of thermal necrosis regardless of the process parameters for drilling operations.
The effect of exercise intensity on exercise‐induced hypoalgesia in cancer survivors: A randomized crossover trial
Authors: Clifford Briana K. , Jones Matthew D. , Simar David , Barry Benjamin K. , Goldstein David
Published: October 2021

Pain is experienced by people with cancer during treatment and in survivorship. Exercise can have an acute hypoalgesic effect (exercise‐induced hypoalgesia; EIH) in healthy individuals and some chronic pain states. However, EIH, and the moderating effect of exercise intensity, has not been investigated in cancer survivors. This study examined the effect of low‐ and high‐intensity aerobic exercise on EIH in cancer survivors after a single exercise session as well as a brief period of exercise training (2‐weeks, three exercise sessions per week). Participants (N = 19) were randomized to low‐ (30%–40% Heart Rate Reserve (HRR) or high‐ (60%–70% HRR) intensity stationary cycling for 15–20 min. Pressure pain thresholds (PPT) were assessed over the rectus femoris and biceps brachii before and after a single exercise session and again after a short training period at the assigned intensity. Then, following a 6‐week washout period, the intervention was repeated at the other intensity. After the first exercise session, high‐intensity exercise resulted in greater EIH over the rectus femoris than low intensity (mean difference ± SE: −0.51 kg/cm2 ± 0.15, Cohen's d = 0.78, p = 0.004). After a 2‐week training period, we found no difference in EIH between intensities (0.01 kg/cm2 ± 0.25, d = 0.00 p = 0.99), with comparable moderate effect sizes for both low‐ and high‐intensity exercise, indicative of EIH. No EIH was observed over the biceps brachii of the arm at either low or high intensity. Low‐intensity exercise training may be a feasible option to increase pain thresholds in cancer survivors.
Sex and race contribute to variation in mitochondrial function and insulin sensitivity
Authors: Fisher Gordon , Tay Jeannie , Warren Jonathan L. , Garvey W. Timothy , Yarar‐Fisher Ceren , Gower Barbara A.
Published: October 2021

Objective

Insulin sensitivity is lower in African American (AA) versus Caucasian American (CA). We tested the hypothesis that lower insulin sensitivity in AA could be explained by mitochondrial respiratory rates, coupling efficiency, myofiber composition, or H2O2 emission. A secondary aim was to determine whether sex affected the results.

Methods

AA and CA men and women, 19–45 years, BMI 17–43 kg m2, were assessed for insulin sensitivity (SIClamp) using a euglycemic clamp at 120 mU/m2/min, muscle mitochondrial function using high‐resolution respirometry, H2O2 emission using amplex red, and % myofiber composition.

Results

SIClamp was greater in CA (p < 0.01) and women (p < 0.01). Proportion of type I myofibers was lower in AA (p < 0.01). Mitochondrial respiratory rates, coupling efficiency, and H2O2 production did not differ with race. Mitochondrial function was positively associated with insulin sensitivity in women but not men. Statistical adjustment for mitochondrial function, H2O2 production, or fiber composition did not eliminate the race difference in SIClamp.

Conclusion

Neither mitochondrial respiratory rates, coupling efficiency, myofiber composition, nor mitochondrial reactive oxygen species production explained lower SIClamp in AA compared to CA. The source of lower insulin sensitivity in AA may be due to other aspects of skeletal muscle that have yet to be identified.
lncRNA-ZFAS1 promotes the progression of endometrial carcinoma by targeting miR-34b to regulate VEGFA expression
Authors: Zhu Hongli , Cheng Qihui , Cai Hong
Published: October 2021

Zinc finger nuclear transcription factor, X-box binding 1-type containing 1 antisense RNA 1 (ZFAS1) functions as an oncogenic long noncoding RNA (lncRNA) to promote proliferation and metastasis of endometrial carcinoma cell; however, the underlying mechanism has not been fully understood. First, RT-qPCR analysis of endometrial carcinoma tissues and cells showed that ZFAS1 was enriched in endometrial carcinoma tissues and cells. miR-34b was reduced in endometrial carcinoma and suggested negative correlation with ZFAS1 in endometrial carcinoma. Second, functional assays demonstrated that siRNA-mediated silence of ZFAS1 suppressed endometrial carcinoma cell proliferation and metastasis. Third, ZFAS1 bind to miR-34b and negatively regulate expression of miR-34b in endometrial carcinoma cells. miR-34b also bind to and negatively regulate expression of vascular endothelial growth factor A (VEGFA) in endometrial carcinoma cells. Lastly, knockdown of miR-34b counteracted with the suppressive effects of ZFAS1 silence on endometrial carcinoma cell proliferation and metastasis. In conclusion, lncRNA ZFAS1 functioned as an oncogene to promote endometrial carcinoma cell proliferation and metastasis through miR-34b/VEGFA axis.
Algebraic structures for pairwise comparison matrices: Consistency, social choices and Arrow’s theorem
Authors: Barbieri Giuseppina , Boccuto Antonio , Vitale Gaetano
Published: October 2021

We present the algebraic structures behind the approaches used to work with pairwise comparison matrices and, in general, the representation of preferences. We obtain a general definition of consistency and a universal decomposition in the space of PCMs, which allow us to define a consistency index. Also Arrow’s theorem, which is presented in a general form, is relevant.

All the presented results can be seen in the main formulations of PCMs, i.e., multiplicative, additive and fuzzy approach, by the fact that each of them is a particular interpretation of the more general algebraic structure needed to deal with these theories.
Polynomial functions on rings of dual numbers over residue class rings of the integers
Authors: Al-Ezeh Hasan , Al-Maktry Amr Ali , Frisch Sophie
Published: October 2021

The ring of dual numbers over a ringRisR[α] =R[x]/(x2), whereαdenotesx+ (x2). For any finite commutative ringR, we characterize null polynomials and permutation polynomials onR[α] in terms of the functions induced by their coordinate polynomials (f1,f2∈R[x], wheref=f1+αf2) and their formal derivatives onR.

We derive explicit formulas for the number of polynomial functions and the number of polynomial permutations on ℤpn[α] forn≤p(pprime).
Upper bounds for analytic summand functions and related inequalities
Authors: Mehboodi Soodeh , Hooshmand M. H.
Published: October 2021

The topic of analytic summability of functions was introduced and studied in 2016 by Hooshmand. He presented some inequalities and upper bounds for analytic summand functions by applying Bernoulli polynomials and numbers. In this work we apply upper bounds, represented by Hua-feng, for Bernoulli numbers to improve the inequalities and related results. Then, we observe that the inequalities are sharp and leave a conjecture about them. Also, as some applications, we use them for some special functions and obtain many particular inequalities. Moreover, we arrived at the inequality

1
p

+

2
p

+

3
p

+
⋯
+

r
p

≤

1
2

r
p

+

1
3

r

p
+
1

(
p
+
1
)

+

2
3

p
!

π

p
+
1

sinh
⁡
(
π
r
)

$1^p + 2^p + 3^p + \dots + r^p \leq \frac{1}{2}r^p + \frac{1}{3}\frac{r^{p+1}}{(p+1)} + \frac{2}{3}\frac{p!}{\pi^{p+1}}\sinh(\pi r)$

, for r sums of power of natural numbers, if p ∈ ℕ
e
and analogously for the odd case.
Global structure for a fourth-order boundary value problem with sign-changing weight
Authors: Ye Fumei
Published: October 2021

We study the fourth-order boundary value problem with a sign-changing weight function:

u
⁗

=
λ
m
(
t
)
u
+

f
1

(
t
,
u
,

u
′

,

u
″

,

u
‴

,
λ
)
+

f
2

(
t
,
u
,

u
′

,

u
″

,

u
‴

,
λ
)
,

t
∈
(
0
,
1
)
,

u
(
0
)
=
u
(
1
)
=

u
″

(
0
)
=

u
″

(
1
)
=
0
,

$$\left\{\begin{array}{ll} u''''=\lambda m(t)u+f_1(t,u,u',u'',u''',\lambda)+f_2(t,u,u',u'',u''',\lambda),\qquad t\in(0,1),\\[1.3ex] u(0)=u(1)=u''(0)=u''(1)=0, \end{array}\right.$$

where λ ∈ ℝ is a parameter, f
1, f
2 ∈ C([0, 1] × ℝ5, ℝ), f
1 is not differentiable at the origin and infinity. Under some suitable conditions on nonlinear terms, we prove the existence of unbounded continua of positive and negative solutions of this problem which bifurcating from intervals of the line of trivial solutions or from infinity, respectively.
On the nonexistence conditions of solution of two-point in time problem for nonhomogeneous PDE
Authors: Nytrebych Zinovii , Malanchuk Oksana
Published: October 2021

We investigate the problem with local homogeneous two-point conditions with respect to time for nonhomogeneous PDE of second order in time variable and generally infinite order in spatial variables in the case when the characteristic determinant of the problem identically equals zero. We establish the nonexistence conditions of solution of this problem in the class of entire functions.
Approximation by a new sequence of operators involving Apostol-Genocchi polynomials
Authors: Prakash Chandra , Verma Durvesh Kumar , Deo Naokant
Published: October 2021

The main objective of this paper is to construct a new sequence of operators involving Apostol-Genocchi polynomials based on certain parameters. We investigate the rate of convergence of the operators given in this paper using second-order modulus of continuity and Voronovskaja type approximation theorem. Moreover, we find weighted approximation result of the given operators. Finally, we derive the Kantorovich variant of the given operators and discussed the approximation results.
Poisson like matrix operator and its application in p-summable space
Authors: Yaying Taja , Hazarika Bipan , İlkhan Merve , Mursaleen M.
Published: October 2021

The incomplete gamma function Γ(a, u) is defined by

Γ
(
a
,
u
)
=

∫

u

∞

t

a
−
1

e

−
t

d

t
,

$$\Gamma(a,u)=\int\limits_{u}^{\infty}t^{a-1}\textrm{e}^{-t}\textrm{d} t,$$

where u > 0. Using the incomplete gamma function, we define a new Poisson like regular matrix

P

(
μ
)
=
(

p

n
k

μ

)

$\mathfrak{P}(\mu)=(p^{\mu}_{nk})$

given by

p

n
k

μ

=

n
!

Γ
(
n
+
1
,
μ
)

e

−
μ

μ
k

k
!

(
0
≤
k
≤
n
)
,

0

(
k
>
n
)
,

$$p^{\mu}_{nk}= \begin{cases} \dfrac{n!}{\Gamma(n+1,\mu)}\dfrac{\textrm{e}^{-\mu}\mu^k}{k!} \quad &(0\leq k\leq n), \\[1ex] 0\quad & (k>n), \end{cases}$$

where μ > 0 is fixed. We introduce the sequence space

ℓ
p

(

P

(
μ
)
)

$\ell_p(\mathfrak{P}(\mu))$

for 1 ≤ p ≤ ∞ and some topological properties, inclusion relations and generalized duals of the newly defined space are discussed. Also we characterize certain matrix classes and compact operators related to the space

ℓ
p

(

P

(
μ
)
)

$\ell_p(\mathfrak{P}(\mu))$

. We obtain Gurarii’s modulus of convexity and investigate some geometric properties of the new space. Finally, spectrum of the operator

P

(
μ
)

$\mathfrak{P}(\mu)$

on sequence space c
0 has been investigated.
On simultaneous limits for aggregation of stationary randomized INAR(1) processes with poisson innovations
Authors: Barczy Mátyás , Nedényi Fanni K. , Pap Gyula
Published: October 2021

We investigate joint temporal and contemporaneous aggregation of N independent copies of strictly stationary INteger-valued AutoRegressive processes of order 1 (INAR(1)) with random coefficient α ∈ (0, 1) and with idiosyncratic Poisson innovations. Assuming that α has a density function of the form ψ(x) (1 − x)
β
, x ∈ (0, 1), with β ∈ (−1, ∞) and

lim

x
↑
1

ψ
(
x
)
=

ψ
1

∈
(
0
,
∞
)

$\lim\limits_{x\uparrow 1} \psi(x) = \psi_1 \in (0, \infty)$

, different limits of appropriately centered and scaled aggregated partial sums are shown to exist for β ∈ (−1, 0] in the so-called simultaneous case, i.e., when both N and the time scale n increase to infinity at a given rate. The case β ∈ (0, ∞) remains open. We also give a new explicit formula for the joint characteristic functions of finite dimensional distributions of the appropriately centered aggregated process in question.
On the testing hypothesis in uniform family of distributions with nuisance parameter
Authors: Eftekharian Abbas , Alizadeh Morad
Published: October 2021

The problem of finding optimal tests in the family of uniform distributions is investigated. The general forms of the uniformly most powerful and generalized likelihood ratio tests are derived. Moreover, the problem of finding the uniformly most powerful unbiased test for testing two-sided hypothesis in the presence of nuisance parameter is investigated, and it is shown that such a test is equivalent to the generalized likelihood ratio test for the same problem. The simulation study is performed to evaluate the performance of power function of the tests.
Mode II fracture behavior of parallel strand bamboo measured by 3-point end-notched flexure tests
Authors: Zhang Zhen-wen , Zhang Jia-liang , Li Yu-shun , Liu Riu
Published: October 2021

Parallel strand bamboo (PSB) is a new type of bio-composite. In the present study, three-point bend end-notched flexure (3ENF) tests of PSB were conducted to analyze the fracture behavior including fracture process, resistant curves, and critical energy release rate in the longitudinal (L) system. The results show that transverse-longitudinal (TL) and thickness-longitudinal (ZL) specimens had the same fracture process including the stages of fracture process zone (FPZ) development and opening crack propagation but different mode II critical energy release rate (GIIc), and they indicate that the fiber bridging had a significant influence. The fracture processes suggest the PSB specimens of which the initial crack length was 0.5 times the half span had a stable crack propagating process, and the crack propagation length was wide enough to evaluate GIIc, which was 5.02 N∙mm-1 of TL specimens and 2.71 N∙mm-1 of ZL specimens. Besides, there was no obvious influence of span/depth ratio on the fracture resistance of both ZL and TL specimens when the ratio was larger than 15.
Diversidad y distribución de mosquitos (Diptera: Culicidae) en el Perú y su relación con las enfermedades metaxénicas
Authors: Ayala-Sulca Yuri , Carrasco-Badajoz Carlos , Ramírez Rina , Iannacone José
Published: October 2021

Introducción. Los ecosistemas tropicales andinos y amazónicos determinan la gran biodiversidad presente en Perú. Sin embargo, los estudios sobre mosquitos (Diptera: Culicidae) en el país son escasos, lo que resulta en un vacío de información en cuanto a su diversidad, ecología, distribución y abundancia.
Objetivo. Buscar evidencia documentada sobre la diversidad y distribución de mosquitos en el Perú, y establecer —con relación a las especies de importancia médica— su potencial vínculo con el ciclo epidemiológico de algunas enfermedades metaxénicas.
Materiales y métodos. Se realizó una revisión de la literatura en Google Académico, ScienceDirect, PubMed y Scielo, y así como en siete bases de datos especializadas en taxonomía de insectos, usando términos específicos y diferentes combinaciones con operadores booleanos (“AND” y “OR”). Estrategia de búsqueda: tipos de estudios: artículos originales de investigación, artículos de revisión, libros y capítulos de libros. Periodo de publicación: sin límite inicial a junio del 2020. Idiomas: inglés, español y portugués.
Resultados. La búsqueda inicial arrojó 99 estudios, 84 en las 4 bases de datos electrónicas y 15 en las bases de especializadas, de los cuales 41 cumplieron los criterios de inclusión. También se incluyó un registro adicional debido a su relevancia con el objetivo de la revisión. Los estudios incluídos fueron artículos originales (n=28), artículos de revisión (n=6), Libros (n=5), capítulos de libro (n=2), y Tesis de pregrado (n=1). Respecto al idioma de publicación, 25 (59.52%) estaban en inglés y 17 (40.48%) en español.
Conclusiones. En Perú, la mayor diversidad de géneros de mosquitos se encuentra presente en los departamentos de Loreto, Huánuco y Madre de Dios. El conocimiento sobre la diversidad de mosquitos en Perú que tiene el potencial de generar problemas de salud es relativamente escaso, y se centra en  Aedes aegypti y algunas especies de los géneros Anopheles, y Culex, dejando de lado una rica diversidad distribuida en los bosques amazónicos, selva alta y valles interandinos.
Nomophobia in teenagers: digital lifestyle, social networking and smartphone abuse
Authors: Ramos-Soler Irene , López-Sánchez Carmen , Quiles-Soler Carmen
Published: October 2021

Smartphone use influences teenagers’ behaviors and lifestyles, not always in a positive way. Abuse and dependence on the use of this device is what has led to the study of nomophobia. The objective of this research is to measure the level of nomophobia in adolescents, and to study their digital consumption habits. The study seeks to analyze the relationships between risk of nomophobia, digital behavior, age and smartphone use. A structured questionnaire has been applied to a sample of 850 students aged 12 to 16. The data has been analyzed with SPSS and SPAD. Multivariate statistical characterization, one of the most recent data mining techniques, has been used to study differences in teenagers’ behaviors according to their risk of nomophobia, and to find related explanatory variables. Teenagers’ nomophobia risk ranges from mild to moderate, showing a relation with age, academic performance and intensity of use of mobile social networking apps. The risk of nomophobia responds to differences in students’ digital, social, relational and educational behaviors, and exhibits differences according to academic performance, age, gender, motivation and self-perception.
Predicting Strict Trifecta Outcomes after Robot-Assisted Partial Nephrectomy: Comparison of RENAL, PADUA, and C-Index Scores
Authors: Karamık Kaan , Aktaş Yasin , Erdemir Ahmet Gürkan , İslamoğlu Ekrem , Ölçücü Mahmut Taha , Özsoy Çağatay , Savaş Murat , Ateş Mutlu
Published: October 2021

Nephrometry scores are designed to characterize tumors and stratify the surgical complexity. It remains unclear as to which nephrometry score can accurately predict the surgical outcomes. We aimed to assess the utility of radius, exophytic/endophytic, nearness, anterior/posterior, location (RENAL), preoperative aspects and dimensions used for anatomic classifications (PADUA), and centrality index (C-index) nephrometry scores for predicting the strict Trifecta achievement from a single institution series robotic-assisted partial nephrectomy (RAPN). We retrospectively identified the prospectively maintained robotic surgery database records of 91 patients who underwent RAPN between June 2015 and September 2020 in Antalya Training and Research Hospital. The main outcome of the study was the achievement of strict Trifecta (negative surgical margin, no major urologic complications, warm ischemia time ≤25 min, and ≥85% preservation of estimated glomerular filtration rate). A multivariable analysis was performed to identify the factors of strict Trifecta success. The mean patient age was 55.82 ± 13.37 years with a median clinical tumor size of 3.5 cm (IQR 2.5–4.9). The median RENAL, PADUA, and C-index score were 7(IQR 6–8), 8(IQR 7–10), and 2.01(IQR 1.64–2.72), respectively. A strict Trifecta could be achieved in 54 patients (59.3%). Clinical tumor size (P = 0.011), RENAL risk groups (low:reference; intermediate; P = 0.040; high; P = 0.009), PADUA risk groups (low:reference; intermediate; P = 0.044; high; P = 0.001) and C-index risk groups (low:reference; high; P = 0.015) were the independent predictors of strict Trifecta attainment in the multivariate analysis. None of the nephrometry scores were a superior predictor compared to other nephrometry scores in comparative analysis. RENAL, PADUA, and C-index scores were all independent predictors of a strict Trifecta achievement. Our comprehensive comparison of the three scores identified that none of the nephrometry scores proved to be inferior to others nephrometry scores.
Antecedents of Commitment to Budgetary Goals
Authors: Bernd Daniele Cristina , Beuren Ilse Maria , Pazetto Celliane Ferraz , Lavarda Carlos Eduardo Facin
Published: October 2021

ABSTRACT Objective: this study analyzes the interactions between budgetary participation, motivation at work (intrinsic and extrinsic), and commitment to budgetary goals. Methods: a survey was carried out with 131 intermediate level managers from different organizational areas of companies classified among the best and biggest companies in Brazil. Results: the results of modeling structural equations indicate that intrinsic and extrinsic motivations have different roles in their interactions with budgetary participation and commitment to goals. And their involvement in the budgetary process reveals behavioral and motivational effects. Conclusions: it is concluded that participation in the budgetary process can positively reflect on managerial performance, insofar as it is able to trigger intrinsic motivational effect and favor behaviors aimed at the commitment to budgetary goals.
Marketing Investment Information: Differentiation Resource or Secret?
Authors: Garcia Evelini Lauri Morri , Vieira Valter Afonso , Borges Caroline Pereira
Published: October 2021

ABSTRACT Objective: drawing on voluntary disclosure theory, the paper’s main goal was to analyze the main effect of marketing intensity and the moderating role of life cycle on disclosure of marketing investments. Method: the sample includes 89 Brazilian companies listed on B3 stock exchange. We collected financial data from two sources, such as Economatica platform and in the explanatory notes and management report from the companies, which we coded through content analysis. We merged these two datasets and analyzed it using multiple linear regression. Results: both the marketing intensity and the life cycle of companies have effects on disclosure of marketing investments. In addition, the birth and growth phases moderate the main effect of marketing intensity, reducing the level of disclosure. This moderation is identified especially in disclosures of qualitative information. Conclusions: the findings support the voluntary disclosure theory based on arguments of judgment-based disclosure. Outcomes showed that when there is a high intensity of marketing investments, disclosure of marketing investments is managed by moving from the status of secrecy in companies in the birth and growth phases of life cycle to the status of differentiation resource in companies in the maturity phase of life cycle.