bluuebunny/crossref_metadata_2025 huggingface dataset:
Factors Driving the Popularity and Virality of COVID-19 Vaccine Discourse on Twitter: Text Mining and Data Visualization Study (Preprint)
Authors: Zhang Jueman , Wang Yi , Shi Molu , Wang Xiuli
Published: December 2021

BACKGROUND

COVID-19 vaccination is considered a critical prevention measure to help end the pandemic. Social media platforms such as Twitter have played an important role in the public discussion about COVID-19 vaccines.

OBJECTIVE

The aim of this study was to investigate message-level drivers of the popularity and virality of tweets about COVID-19 vaccines using machine-based text-mining techniques. We further aimed to examine the topic communities of the most liked and most retweeted tweets using network analysis and visualization.

METHODS

We collected US-based English-language public tweets about COVID-19 vaccines from January 1, 2020, to April 30, 2021 (N=501,531). Topic modeling and sentiment analysis were used to identify latent topics and valence, which together with autoextracted information about media presence, linguistic features, and account verification were used in regression models to predict likes and retweets. Among the 2500 most liked tweets and 2500 most retweeted tweets, network analysis and visualization were used to detect topic communities and present the relationship between the topics and the tweets.

RESULTS

Topic modeling yielded 12 topics. The regression analyses showed that 8 topics positively predicted likes and 7 topics positively predicted retweets, among which the topic of vaccine development and people’s views and that of vaccine efficacy and rollout had relatively larger effects. Network analysis and visualization revealed that the 2500 most liked and most retweeted retweets clustered around the topics of vaccine access, vaccine efficacy and rollout, vaccine development and people’s views, and vaccination status. The overall valence of the tweets was positive. Positive valence increased likes, but valence did not affect retweets. Media (photo, video, gif) presence and account verification increased likes and retweets. Linguistic features had mixed effects on likes and retweets.

CONCLUSIONS

This study suggests the public interest in and demand for information about vaccine development and people’s views, and about vaccine efficacy and rollout. These topics, along with the use of media and verified accounts, have enhanced the popularity and virality of tweets. These topics could be addressed in vaccine campaigns to help the diffusion of content on Twitter.
Authors’ Response to Peer Reviews of “Information Technology Ambidexterity, Digital Dynamic Capability, and Knowledge Processes as Enablers of Patient Agility: Empirical Study” (Preprint)
Authors: van de Wetering Rogier , Versendaal Johan
Published: December 2021

UNSTRUCTURED

These are authors responses to peer review of ms#32336.
Transformation of Zinnia elegans Jacq. as an ornamental potted plant by daminozide application
Authors: Annisa Nurul , Purwantoro Aziz , Respatie Dyah Weny
Published: December 2021

Zinnia elegans Jacq. is one of the ornamental plants potential to be used as a potted ornamental plants. The problem to be resolved is the size of the plant can reach 1 m, so it is necessary to modify the plant height into 20 cm to 25 cm using retardant (plant growth regulator), called daminozide. The purpose of this study was to determine the best concentration and soaking time using daminozide to inhibit the growth of zinnia. The research was conducted at Mangkuyudan 57, Yogyakarta. This research was arranged in a factorial design with 3 blocks as replication. Different concentrations of daminozide were used as first factor with three levels (1 g.L-1, 2 g.L-1, and 3 g.L-1) and soaking times were used as the second factor (12 h, 24 h, and 36 h). The data were analyzed using analysis of variance and continued with HSD-Tukey at the α = 5 %. The results showed that there were an interaction between daminozide concentration and soaking time in the height of Z. elegans. There were also positive correlation between plant height, number of flower, and flowering period. The best combination of daminozide concentration and soaking times were 2 g.L-1 and 12 h. This treatment gave the best height that fit to the criteria of a potted plant which was 20.08 cm. However, it reduced flower’s diameter, number of flowers, and canopy’s size.
A Study of a Multiple Evaluation System of College English Online Teaching in China
Authors: Zhang Fan , Feng Shuxiong
Published: December 2021

The comprehensive and scientific evaluation of college English teaching in online mode is an important basis for further promoting and optimizing the pragmatic reform of college English teaching. Based on the operational principle, the principle of service to students, and the feasibility principle, this study aims to construct a multiple evaluation system of online college English teaching based on three aspects: online interaction, online autonomous learning, and English online practice. A questionnaire has been conducted among undergraduates, teachers, and experts. The Analytic Hierarchy Process (AHP) has been used to analyze the relative importance of the indicators at the first two levels in the multiple evaluation system. The results revealed that the weight coefficients of teacher-student interaction, learning resources, and English listening practice are higher, while those of learning freedom and oral English practice are lower. Therefore, the online college English teaching reform should take the following measures: equipment input of college English practice teaching should be reinforced, communication channels between teachers and students should be strengthened, and online teaching resources should be enriched.
Variability and Changes in Rainfall Observed Across Jharkhand Region (India)
Authors: Yadav Shraddha
Published: December 2021

Abstract: Rainfall variability has a substantial impact on water supplies, agricultural output, and, as a result, the economy. It examines the historical spatiotemporal variability and trend of rainfall on Jharkhand's annual and seasonal time series state over a 60-year period (1954–2013). The goal of this study was to find trends in long and short-term changes in rainfall amounts in the Jharkhand region at various spatial scales. With the help of the wavelet technique, we were able to determine the periodicity of rainfall over time and identify active and break days in the monsoon season. When the OLR positive anomaly increases, rainfall decreases (Break days), and when the OLR negative anomaly increases, rainfall increases (Active days). The Indian summer monsoon extreme is also strongly linked to the Equatorial Indian Ocean Oscillation (EQUINOO), which is based on surface zonal wind across the central equatorial Indian Ocean. Because the Bay of Bengal is next to Jharkhand, local disturbances or cyclonic events are also discovered and their impact on rainfall is investigated. Keywords: Rainfall, ENSO, Wavelet Transform, Active and Break days, Cyclone, Climate Change.
Techniques for Detecting Malware Traffic: A Comprehensive Approach to Feature Selection and Classification
Authors: A K Harsha
Published: December 2021

Abstract: Since the advent of encryption, there has been a steady increase in malware being transmitted over encrypted networks. Traditional approaches to detect malware like packet content analysis are inefficient in dealing with encrypted data. In the absence of actual packet contents, we can make use of other features like packet size, arrival time, source and destination addresses and other such metadata to detect malware. Such information can be used to train machine learning classifiers in order to classify malicious and benign packets. In this paper, we offer an efficient malware detection approach using classification algorithms in machine learning such as support vector machine, random forest and extreme gradient boosting. We employ an extensive feature selection process to reduce the dimensionality of the chosen dataset. The dataset is then split into training and testing sets. Machine learning algorithms are trained using the training set. These models are then evaluated against the testing set in order to assess their respective performances. We further attempt to tune the hyper parameters of the algorithms, in order to achieve better results. Random forest and extreme gradient boosting algorithms performed exceptionally well in our experiments, resulting in area under the curve values of 0.9928 and 0.9998 respectively. Our work demonstrates that malware traffic can be effectively classified using conventional machine learning algorithms and also shows the importance of dimensionality reduction in such classification problems. Keywords: Malware Detection, Extreme Gradient Boosting, Random Forest, Feature Selection.
Lecture 8: Hegemony and Rhetoric Analysis
Authors: McCarron Gary
Published: December 2021

The connection between rhetoric and hegemony leads us back to Kenneth Burke’s work on political critique and the subtle ways discourse shapes political consciousness. This lecture also looks at how Ernesto Laclau connects rhetoric and the theory of articulation; Joseph Nye’s work on soft power; Timothy Borchers’ discourse on the work of rhetorician Dana Cloud; and Robert Ivie’s thoughts on balancing the opposing notions of identification and division.
La connexion entre rhétorique et hégémonie nous ramène aux écrits de Kenneth Burke sur la critique politique et les façons subtiles dont le discours forme la conscience politique. Ce cours examine aussi : la manière dont Ernesto Laclau relie la rhétorique et et la théorie de l’articulation; le travail de Joseph Nye sur le soft power (« pouvoir de convaincre »); les réflexions de Timothy Borchers sur l’œuvre du rhétoricien Dana Cloud; et les pensées de Robert Ivie sur l’utilité d’équilibrer les notions opposées d’identification et de division.
El engranaje de las máquinas: ¡Un arquito más! Reconstruir y rememorar la historia, promueve a reivindicar la identidad de un pueblo minero que lucha por su sobrevivencia
Authors: Barboza Gisel Elvira
Published: December 2021

El presente proyecto tiene el objetivo de generar acciones socio-educativas mediadas por la tecnología en la cuenca carbonífera para conocer las trayectorias laborales y clivajes culturales que tienen los mineros jubilados del Yacimiento Carbonífero Río Turbio (YCRT) recuperando sus propias voces. En ese punto, se comprende el relato oral del minero y su familia como un elemento significativo para la construcción de la historia del Yacimiento carbonífero, particularmente los mineros que participaron en las luchas laborales que se suscitaron en la década de 1990 por la defensa y continuidad de la fuente productiva, la cual es generadora de existencia de los pueblos identificados por la extracción minera.
Recuperar la memoria colectiva por parte de los protagonistas y poder colocarla en valor, implica registrar esferas transversales como la identidad, la familia, la trayectoria laboral, el espacio compartido entre pares y otros clivajes culturales. Los cuales, son polos de identidad que van conformando subjetividades, que unidas, forman parte de estándares que el minero y su grupo exalta y replica con grandeza. En ello, destacamos que estos mineros que referenciamos, tuvieron su ingreso en la mina en tiempos finales del peronismo en Argentina, momento donde aún se enmarcaba fuertemente la ideología de cultura del trabajo.
Por último, destacamos que los mineros que se jubilaron posterior al año 2004 son nuestra población objeto, los cuales, por un lado vivieron eventos trascendentales en cuanto a la conquista de derechos laborales a partir de luchas por la continuidad de la fuente laboral, tal como la del año 1994, y por otro, esta franja etaria también evidenció el siniestro del 14 de junio del 2004, instancia trágica que conllevó a mayores políticas en seguridad laboral y el inicio de contratación de personal joven, los que se caracterizaron en su mayoría por ser hijos y familiares de mineros.
Los espacios culturales en tiempos de pandemia. La experiencia de LUPAT en Comodoro Rivadavia
Authors: Ciselli Graciela , Hernández Marcelo
Published: December 2021

LUPAT es una Asociación Civil que comenzó a funcionar en febrero de 2021 en Comodoro Rivadavia. Pensada inicialmente como un espacio para contar, debatir y compartir la historia local y regional de modo presencial, en este contexto de pandemia debió adecuarse a los protocolos exigidos por el gobierno. Incorporada en el Programa municipal “Turistas por un día” recibe un pequeño número de visitantes en cada ocasión que se suma a quienes llegan de modo individual/familiar.
Como estrategia para el fortalecimiento y visibilización de LUPAT más allá de lo local se construyó el sitio web oficial lupatcomodoro.com y otros para la difusión complementaria en las redes sociales Facebook e Instagram que facilita la interacción entre la asociación y el público (los que vinieron y los que piden turno para venir).
El artículo profundiza en torno a la articulación entre lo público y lo privado en tiempos de pandemia, al uso de la virtualidad y a la necesidad de pensar en nuevas estrategias de trabajo en red.
Theory and experiment for resource-efficient joint weak-measurement
Authors: Martinez-Becerril Aldo C. , Bussières Gabriel , Curic Davor , Giner Lambert , A. Abrahao Raphael , Lundeen Jeff S.
Published: December 2021

Incompatible observables underlie pillars of quantum physics such as contextuality and entanglement. The Heisenberg uncertainty principle is a fundamental limitation on the measurement of the product of incompatible observables, a 'joint' measurement. However, recently a method using weak measurement has experimentally demonstrated joint measurement. This method [Lundeen, J. S., and Bamber, C. Phys. Rev. Lett. 108, 070402, 2012] delivers the standard expectation value of the product of observables, even if they are incompatible. A drawback of this method is that it requires coupling each observable to a distinct degree of freedom (DOF), i.e., a disjoint Hilbert space. Typically, this 'read-out' system is an unused internal DOF of the measured particle. Unfortunately, one quickly runs out of internal DOFs, which limits the number of observables and types of measurements one can make. To address this limitation, we propose and experimentally demonstrate a technique to perform a joint weak-measurement of two incompatible observables using only one DOF as a read-out system. We apply our scheme to directly measure the density matrix of photon polarization states.
Determination Of Legal Remedies For Civil Cases To Make The Principles Of Justice Simple, Fast And Lighting Cost
Authors: Aime Andrianantenaina Fanirintsoa , Ad’ha Zulfikar Dori
Published: December 2021

One of the principles in the justice system is justice that is simple, fast and low cost. In this regard, the People's Consultative Assembly (MPR) takes this matter seriously and responds to it by issuing a decree, namely TAP MPR No. VIII/MPR/2000 concerning the Annual Report of High State Institutions at the 2000 Annual Session of the People's Consultative Assembly of the Republic of Indonesia, which one of its substances recommends that the Supreme Court immediately resolve delinquent cases by increasing the number and quality of decisions and that the Supreme Court makes regulations to limit entry cassation case. With this principle, it is necessary to conduct a study regarding the application of these principles.
O CONHECIMENTO EM ANÁLISE NA FORMAÇÃO DE PROFESSORES DE CIÊNCIAS BIOLÓGICAS
Authors: Branco Alessandra Batista de Godoi , Silva Susane Closs da , Branco Emerson Pereira , Nagashima Lucila Akiko
Published: December 2021

O artigo é resultado de pesquisa qualitativa com revisão de literatura e documental.  Nesse estudo, objetivou-se analisar a percepção de um grupo de licenciandos em Ciências Biológicas sobre o conhecimento no processo de ensino e de aprendizagem no contexto escolar. A partir disso, buscou-se relacionar a modelos pedagógicos e epistemológicos, de acordo com referencial teórico. Para tanto, os objetos de análise foram atividades realizadas pelos participantes: (1) a resposta à pergunta sobre concepção de conhecimento e (2) desenhos sobre como se dá o conhecimento no processo de ensino e de aprendizagem na escola. Nos encontros foram produzidos escritos e desenhos, os quais foram lidos, observados, estudados e categorizados pelo método de análise de conteúdo. Como resultado, os participantes da pesquisa apresentaram concepções variadas de conhecimento sobressaindo características da tendência empirista, valorizando a exposição, a ideia de transmissão, a reprodução, entre outros. Os desenhos representaram concepções ligadas principalmente ao empirismo e ao construtivismo. Em relação aos indivíduos retratados, foi mais recorrente a figura da professora à frente da turma, distante dos alunos e expondo o conteúdo. Os estudantes foram desenhados por todos os acadêmicos, a maioria sem distinção de gênero, sentados e passivos ou em pé, aparentemente alheios à aula.  Foram representadas interações interpessoais e muitos dos estudantes voltados fisicamente em direção ao professor. Sobre o espaço, sobressaiu a sala de aula, com quadro, carteiras enfileiradas e giz. Assim, o modelo pedagógico sugere que características do empirismo foram mais recorrentes nas atividades elaboradas pelo grupo participante.
INCLUSÃO ESCOLAR DO ALUNO SURDO NA PERCEPÇÃO DO INTÉRPRETE DE LÍNGUA BRASILEIRA DE SINAIS EM SALAS DE CIÊNCIAS E BIOLOGIA
Authors: Gomes Paulo César , Moura Tiago Fernando Alves de , Alves Eduarda Gabriela Moura
Published: December 2021

Nosso objetivo primordial neste trabalho foi investigar como os Intérpretes de Língua Brasileira de Sinais (LIBRAS) compreendem sua ação profissional na inclusão do surdo no contexto de aulas de Ciências e Biologia. Contudo, investigamos também o cumprimento do Decreto n. 5.626/2005, que trata da obrigatoriedade da inserção deste profissional nas escolas, em duas diferentes cidades do interior paulista. Trata-se de uma Pesquisa Qualitativa em Educação na qual realizamos entrevistas semiestruturadas, análise documental e realizamos visitas a unidades escolares. Nossos resultados evidenciaram que em apenas uma das cidades existe a aplicação da Lei supra. Nesta, há apenas três escolas de Ensino Fundamental II e Ensino Médio que efetivamente recebem alunos surdos. As intérpretes participantes atuam nas escolas exclusivamente de acordo com a demanda de alunos surdos e não compreendem sua ação educativa nas aulas de ciências como atividade de ensino.
METODOLOGIA DE TRABALHO DE CAMPO COM LICENCIANDOS EM CIÊNCIAS BIOLÓGICAS PARA O ENSINO INCLUSIVO DE CEGOS
Authors: Pimentel dos Santos Luis Otávio , Mariani Braz Ruth Maria , Melo Coutinho Cláudia Mara Lara
Published: December 2021

O presente trabalho foi realizado durante o processo de formação acadêmica de licenciandos, que foram expostos a situações que permitem discutir e aplicar estratégias voltadas para a educação inclusiva. Assim, desenvolvemos, aplicamos e avaliamos metodologia de ensino inclusivo que buscou integrar licenciandos em Ciências Biológicas e colaboradores cegos durante trabalho de campo para estudo e reconhecimento de organismos marinhos coletados em uma praia urbana. Os licenciandos de olhos fechados, manipularam e exploraram as características dos organismos marinhos previamente coletados, como também os colaboradores cegos e descrevendo-os para os licenciandos que novamente de olhos fechados confeccionaram um segundo modelo com base nas características descritas pelos cegos, para efeitos de comparação. Foram aplicados dois questionários para avaliar percepções de licenciandos relativas a práticas inclusivas, relativas à metodologia desenvolvida de ensino inclusivo, em particular, antes e após o trabalho de campo. Os resultados nos permitiram concluir que o simples fato de aproximar videntes e cegos ao ar livre, em condições lúdicas de aprendizagem, possibilitou mudanças positivas de percepções dos licenciandos sobre habilidades e potencialidades dos cegos. Concluímos, que a metodologia desenvolvida tem potencial como prática alternativa de ensino que privilegia o conjunto dos sentidos e a troca de experiências para a promoção da inclusão de pessoas cegas.
Two Egoists (Dostoevsky’s Humiliated and Insulted and Dickens’ Barnaby Rudge)
Authors: Altshuller Mark
Published: December 2021

The article is devoted to the reception of Charles Dickens by Dostoevsky, who was an ardent reader of Dickens. The author of the article shows that Dostoevsky’s Humiliated and Insulted clearly demonstrates the influence not only of Dickens’ The Old Curiosity Shop but also of his next, less popular, novel Barnaby Rudge (1841) which was published in Russian translation in the “Otechestvennye Zapiski” in 1842. The article reveals some similarities of the plot and, more importantly, between the characters of the two novels: Count Volkovsky and Sir Chester, who personify the type of antiromantic egoists which will be developed with more depth in Dostoevsky’s later works.
A potência feminista a partir de um olhar histórico: a Tribuna da Primeira Conferência Mundial da Mulher e o desejo de transformar tudo
Authors: Cinelli Moreira Natali Francine , Komatsu Agopyan Kelly
Published: December 2021

Verónica Gago desenvolve a potência feminista como teoria alternativa de poder. A partir das múltiplas opressões que recaem sobre as mulheres, a autora teoriza o desejo de transformar tudo. Propomos revisitar as discussões da Tribuna da Primeira Conferência Mundial da Mulher, 1975, a partir da potência feminista. Em meio à Guerra Fria, milhares de mulheres - do sul e do norte globais, de países socialistas e capitalistas - se reuniram pela primeira vez para discutir seu papel na sociedade. As mulheres se reuniram na Tribuna e tornaram-se visíveis; em assembleia, discutiram as opressões a que eram submetidas. As discussões foram numerosas, as diferenças se multiplicaram e as unanimidades foram escassas, mas é possível encontrar na Tribuna um embrião da potência feminista como capacidade desejante que segue impulsionando a luta histórica pela igualdade. Por meio da análise de documentos históricos e de relatos das participantes, concluímos ser evidente o desejo das participantes de mudar as estruturas de poder e deslocar os limites a que foram submetidas, mesmo em sua heterogeneidade. Revisitando a literatura de difusão internacional, concluímos, ainda, que a Tribuna deixou valiosas contribuições, difundidas e traduzidas de forma transnacional, e que ainda hoje orientam os movimentos feministas.
A Pesquisa em Artes Cênicas pelo Grupo Tercer Abstracto
Authors: Trotta Rosyane
Published: December 2021

O grupo chileno-brasileiro Tercer Abstracto, que atua desde 2012 e tem nove obras no percurso, vem buscando aproximar o teatro da ciência, como investigação performativa. Segundo sua página virtual (https://tercerabstracto.com/), “a investigação guia a criação” e, nesse contexto, o processo “parte de uma pergunta, um problema”. O grupo investe em duas linhas de projeto: a Série Abstracto se dedica ao estudo de artistas visuais, principalmente da abstração; o Projeto Manifestos se debruça sobre os encenadores da modernidade – nessa linha, a primeira peça foi Convenção, a partir de Meyerhold, e a segunda foi Épico, a partir de Brecht. No dia 11 de maio de 2021, os integrantes Mateus Fávero, ator e dramaturgista, e David Atencio, diretor, apresentaram sua metodologia de criação para os alunos da disciplina Laboratório de Encenação, ministrada na UNIRIO por Rosyane Trotta. Aqui, trazemos uma síntese dessa entrevista. Palavras-chavesPesquisa em Artes. Metodologia Artística. Teatro de Grupo.
Aprendizaje Basado en Proyectos de las medidas de dispersión en busca de la cultura estadística en un contexto rural
Authors: Rojas Ortigoza Alba Bibiana , Fúneme Mateus Cristian Camilo
Published: December 2021

El presente artículo sistematiza los resultados de la investigación por medio de la cual se identifica la forma cómo la estrategia aprendizaje basado en proyectos, puede aportar para el desarrollo de la cultura estadística respecto a las medidas de dispersión del estudiantado que se encuentra en un contexto rural y cursan el grado undécimo en la Institución Educativa San Isidro, ubicado en Colombia. Esta investigación se desarrolló bajo un enfoque cualitativo y de acuerdo con los lineamientos de la investigación acción participativa. En primer lugar, se revisa la literatura que aborda teóricamente, entre otros temas, la enseñanza de la estadística, medidas de dispersión, cultura estadística y aprendizaje basado en proyectos. Luego, según el diseño metodológico, se efectúa un diagnóstico que mostró la necesidad de implementar la estrategia pedagógica ABP (Aprendizaje Basado en Proyectos) para abordar el tema medidas de dispersión, en la búsqueda del uso, interpretación y argumentación crítica. En cuanto a la ejecución del ABP se hace en medio de un aislamiento social y, por lo tanto, se rediseña el proceder en el aula por actividades de trabajo en casa. Respecto a los resultados de este proceso permitieron concluir que, aunque se alcanzaron logros significativos en cuanto al desarrollo de un proyecto y el manejo de datos, por situaciones como el aislamiento social no se llegó a los niveles de cultura estadística esperados, situación que deja como mayor reflexión que, al implementar este tipo de estrategias, resulta fundamental la interacción del estudiante con sus compañeros y la comunicación constante con el docente.
Reestructurar la educación en tiempos de pos-pandemia
Authors: Tamara Tamara
Published: December 2021

La crisis sanitaria de la COVID19 ha puesto en jaque los sistemas educativos de buena parte del mundo. En Iberoamérica, se han hecho evidentes algunas de las brechas y desigualdades que enfrenta la región, con importantes desafíos vinculados a la calidad educativa y a la equidad. En lo más inmediato, se trata de impulsar estrategias de retorno y recuperación de los procesos educativos, con una especial mirada a los colectivos más vulnerables, que más afectados se han visto durante este periodo. En el largo plazo, debemos apostar por una transformación profunda del sistema. Se trata de aprovechar esta crisis para revisar el modelo educativo, que promueva una formación a lo largo de la vida y para todos. Avanzar en esta tarea requiere de propuestas que se impulsen desde la política pública, que se construyan desde la cooperación y la colaboración interinstitucional y con estrategias orientadas al fortalecimiento institucional y al desarrollo de capacidades.
HISTÓRIA DA QUÍMICA: UMA ANÁLISE SOBRE A PRESENÇA DO CONTEÚDO NOS PNLDs DE 2015 E 2018
Authors: Santos Flho Antônio de Pádua Arruda dos , Barroso Maria Cleide da Silva , De Goes Sampaio Caroline
Published: December 2021

Pesquisas evidencia que as reformas curriculares que estão acontecendo na educação brasileira deixam o ensino empobrecido, consequentemente os livros didáticos. Diante disso, o presente artigo tem o objetivo de analisar como o conteúdo de História da Química tem sido abordado nas versões e um e dois, do livro didático Química, da autora Martha Reis, que fizeram parte do PNLD dos anos de 2015 e 2018. Para isso, foi realizada uma Revisão Sistemática de Literatura, para ver o que outros pesquisadores da área tem argumentado sobre a importância da HQ no ensino de Química, um estudo documental analisando o que os PCNs, a BNCC e o PNLD têm falado sobre a HQ, e por fim, uma análise das duas versões dos livros didáticos descritos anteriormente. Observou-se que de uma edição para outra, os livros sofreram algumas alterações, principalmente nos volumes dois e três. Por essa razão, sugestiona-se que sejam realizados mais estudos nessa área, analisando sobretudo outros livros didáticos de química.
Prueba
Authors: Ricardo Martinez
Published: December 2021

Prueba para un trabajo de la universidad Nacional
Genetic variability and the ecology of geographic range: a test of the central-marginal hypothesis in Australian scincid lizards
Authors: Singhal Sonal , Wrath John , Rabosky Daniel
Published: December 2021

For many species, both local abundance and regional occupancy are
highest near the center of their geographic distributions. One
hypothesis for this pattern is that niche suitability declines with
increasing distance from a species geographic center, such that
populations near range margins are characterized by reduced density and
increased patchiness. In these smaller edge populations, genetic drift
is more powerful, leading to the loss of genetic diversity. This simple
verbal model has been formalized as the central-marginal hypothesis,
which predicts that core populations should have greater genetic
diversity than edge populations. However, demographic shifts over time
can generate a similar pattern. For example, in species with expanding
ranges, populations at the range edge experience serial founder effects,
creating a gradient of declining genetic diversity from the range core
to edge. Testing the central-marginal hypothesis properly thus requires
us to consider the confounding role of historical demography. Here, we
account for the role of history in testing the central-marginal
hypothesis using a genomic dataset of 25 species-level taxa of
Australian skink lizards (genus: Ctenotus and Lerista). We found support
for the central-marginal hypothesis in 16 of our 25 taxa, of which eight
taxa recovered significant support. Unexpectedly, species with the
strongest evidence for range expansion were the least likely to follow
predictions of the central-marginal hypothesis. The majority of these
species had range expansions that originated at the range edge, which
led to lower genetic diversity at the range edge compared to the core,
contrary to the central-marginal hypothesis.
The Development of the Extravascular Defibrillator with Substernal Lead Placement: A New Frontier for Device-Based Treatment of Sudden Cardiac Arrest
Authors: Thompson Amy , Atwater Brett , Boersma Lucas V.A. , Crozier Ian , Engel Gregory , Gimbel J Rod , Knight Bradley , Manlucu Jaimie , Murgatroyd Francis , O'Donnell David , Kuschyk Juergen , DeGroot Paul
Published: December 2021

Introduction: The extravascular ICD (EV ICD) system with substernal lead
placement is a novel non-transvenous alternative to current commercially
available ICD systems. The EV ICD provides defibrillation and pacing
therapies without the potential long-term complications of endovascular
lead placement. Methods: This paper summarizes the development of the EV
ICD, including the pre-clinical and clinical evaluations that have
contributed to system and procedural refinements to date. Results:
Extensive pre-clinical research evaluations and 4 human clinical studies
with >140 combined acute and chronic implants have enabled
the development and refinement of the EV ICD system, currently in
worldwide pivotal study. Conclusion: The EV ICD may represent a
clinically valuable solution in protecting patients from sudden cardiac
death while avoiding the long-term consequences of transvenous hardware.
The EV ICD offers advantages over transvenous and subcutaneous systems
by avoiding placement in the heart and vasculature; relative to
subcutaneous systems, EV ICD requires less energy for defibrillation,
enabling a smaller device, and provides pacing features such as
anti-tachycardia and asystole pacing in a single system.
The Serbian Lake Pannon formations - their significance and interregional correlation
Authors: Andjelkovic Filip , Radivojevic Dejan
Published: December 2021

The problem of correlating Lake Pannon sediments across its basin has been the occupation of many geologists. At first, it was hampered by the prevalence of biostratigraphic, rather than lithostratigraphic correlation. The task became accomplishable when, thanks to seismic survey data, the strongly progradational character of Lake Pannon sedimentation had been understood. Thus, this paper aims to describe the formations from all parts of Lake Pannon and compare them to the ones described in Serbia. Material used includes published and unpublished data from all countries with Pannonian Basin System upper Miocene and lower Pliocene deposits, in the form of seismic, borehole and outcrop data. Even though the system is strongly asymmetric, both spatially and temporally, the formation synthesis framework should help better understanding among geologists operating within the basin. For the first time the informal formations are proposed for all Lake Pannon sediments in Serbia. The formations are linked to a progradational deltaic system within the following succession: basinal plain?turbidite?slope?delta front?delta plain?lacustrine and alluvial environments. The lithostratigraphic correlation has a huge potential in the context of industry. The main potential surely lies in petroleum geology, but it could be also very useful for exploration of geothermal energy, hydrogeology and construction materials.
Photometry, light curve solution and period study of contact binary BX And
Authors: Partovi M. , Abedi A. , Roobiat K.Y.
Published: December 2021

The photometry of the binary star BX And (HIP 10027) is performed during
several nights in October and November 2019, and October 2020 using B, V,
and R Johnson-Cousins filters in Dr. Mojtahedi Observatory of the University
of Birjand. Astronomical image processing and data reduction are performed
by the IRIS software and light curves are obtained. These curves, along with
the radial velocity data of the binary star, are analyzed by the Phoebe
program to determine the physical and geometric parameters of the system.
The evolutionary state of this system is investigated using the
Hertzsprung-Russell (H-R) and density vs color index diagrams. The O-C curve
is plotted using the eclipse times obtained in this study and those reported
in the literature. By fitting a quadratic function to this curve, a new
linear ephemeris is obtained for the system, and the mass transfer rate
between the components of the system is determined. A periodic behavior is
observed in the residuals, after subtracting the quadratic function from the
O-C curve. These periodic changes are attributed to the presence of a third
component in the system. The parameters of the third component are
determined by fitting the light-time function to the residuals curve.
Studying heat conduction in a sphere considering hybrid fractional derivative operator
Authors: Abdel Kader , Abdel Latif , Baleanu Dumitru
Published: December 2021

In this paper, the fractional heat equation in a sphere with hybrid fractional derivative operator is investigated. The heat conduction is considered in the case of central symmetry with heat absorption. The closed form solution in the form of three parameter Mittag-Leffler function is obtained for two Dirichlet boundary value problems. The joint finite sine Fourier-Laplace transform is used for solving these two problems. The dynamics of the heat transfer in the sphere is illustrated through some numerical examples and figures.
Understanding the Roles of Romantic Partners and Parents in the Management of Type 1 Diabetes in Emerging Adults
Authors: Campbell MaryJane S. , Gray Avia , Wiebe Deborah J. , Berg Cynthia A.
Published: December 2021

During the emerging adulthood of people with type 1 diabetes, long-term romantic partners may be involved in diabetes management in ways that supplant parental involvement. We examined the perspectives of involvement in diabetes management of the parents and romantic partners of 29 emerging adults with type 1 diabetes, using qualitative interviews and an online survey. When the individuals with diabetes were in long-term romantic relationships, their partners were heavily involved in managing diabetes and providing support; however, when the individuals with diabetes were in short-term relationships or not in a relationship, their parents were described as having the biggest positive impact on their diabetes management. Emerging adults described the involvement of their parents and romantic partners in both positive and negative ways. Romantic relationship status is an important but understudied variable in understanding social involvement and its effects on type 1 diabetes management during emerging adulthood.
Fim da Festa e da História
Authors: Rampazzo Gil Fevorini
Published: December 2021

A Copa do Mundo realizada no Brasil em 2014 marcou o fim de um modelo de esporte centrado nos estádios, dando início a uma nova proposta centrada nas arenas. A partir de uma etnografia na Neo Química Arena, o artigo busca discutir as características dessa mudança (que ocorre dentro de um processo mais amplo: o de arenização) destacando a forma como essas novas estruturas podem ser caracterizadas como panópticos − para vigiar, controlar e punir torcedores que se descontrolem em demasia − e também como não-lugares, por consequência das restrições impostas e também por sua arquitetura rígida e padronizada.
Concretização do Projeto Profissional do Serviço Social diante do Projeto Institucional Empresarial
Authors: Souza Gabriela Mendes , De Sant'Anna Caroline dos Santos
Published: December 2021

A dimensão que envolve a relação entre o profissional e a instituição é complexa e, envolve uma série de fetiches que escamoteiam a realidade deste cotidiano, como tudo que ocorre na sociedade do capital. Diante disso, é notável que a opção profissional do Serviço Social por uma sociedade livre de opressões, coloca em debate como é possível concretizar o Projeto Profissional num contexto de precarização e racionalização do trabalho que, por consequência, exige uma competência do trabalhador para concretizar o Projeto Institucional, que majoritariamente preza apenas pela manutenção do modo de produção capitalista.
An exceptional surface occurrence: the middle to upper Miocene succession of Pécs-Danitzpuszta (SW Hungary)
Authors: Sebe Krisztina , Konrád Gyula , Sztanó Orsolya
Published: December 2021

The Pécs-Danitzpuszta sand pit is the most important outcrop of the oldest Pannonian (upper Miocene, Tortonian) deposits in southern Hungary. A trench excavated in 2018 exposed Lake Pannon deposits and underlying Paratethys strata down to the upper Badenian (Serravallian), and together with the sand pit they make up a continuous sedimentary succession with a true thickness of ~220 metres. Due to tectonic deformation, middle Miocene deposits and carbonates in the lowermost Pannonian are overturned. Layers become vertical close to the marl-sand boundary, then the dip changes to normal, with continuously decreasing dip angles. The exposed succession starts with 5 m of upper Badenian (13.8-12.6 Ma old) calcareous marls and sandy limestones with sublittoral, then littoral molluscs, which were deposited in the normal salinity seawaters of the Central Paratethys. The overlying 8 m of sand, silt, sandy breccia and conglomerate are fossil-free,; only the lowermost silt layer contains reworked Badenian microfauna. This unit probably accumulated from gravity-driven flows in a fan-like, probably terrestrial depositional setting. The next 7.5 m of frequently alternating thin-bedded limestones, marls and clays with sublittoral biota represent rapid transgression. Foraminifers, ostracods, molluscs and calcareous nannoplankton indicate late Sarmatian, then Pannonian age for this interval. However, the locations of the boundaries indicated by the various groups are not are not consistent, making the position of the Sarmatian/Pannonian boundary uncertain. The Sarmatian beds with marine fossils still accumulated in the Paratethys, between ~12.1–11.6 Ma, under varying salinities due among others to temporary freshwater input. The Pannonian strata already represent sediments of the brackish Lake Pannon. Above these beds, uniform calcareous marl becomes dominant with some clay layers and graded or structureless conglomerate to sandstone interbeds. The deposition of the overall 64- m- thick Pannonian calcareous marl section took place in the open, probably few -hundred -metres -deep water of the lake between ~11.62 and 10.5–10.2 Ma. It may represent a rare, well-exposed surface occurrence of the Endrőd Formation which is known from thousands of wells in the Pannonian Basin. Above this section, a 6-7 -m- thick transitional interval of silty marls and sands is followed by ~140 m of limonitic, pebbly sands. They have poor to moderate sorting and rounding, metre -thick beds with transitional boundaries and abundant fossils and clasts reworked from older Miocene units. Their accumulation took place between 10.2-10.5 and 9.6 Ma by gravity flows connected to deep-water portions of fan deltas.
Structural features in the Miocene sediments of the Pécs-Danitzpuszta sand pit (SW Hungary)
Authors: Sebe Krisztina
Published: December 2021

The Pécs-Danitzpuszta sand pit in southern Hungary exposes middle and upper Miocene (Badenian to Pannonian/Langhian to Tortonian) sediments along the mountain front fault zone of the Mecsek Mts and preserves an essential record of tectonic events during and after the early late Miocene, which are not exposed elsewhere in the region. In this paper we present structural observations recorded over 20 years of work, date the deformation events with mollusk biostratigraphy and make inferences on the structural evolution of the area. At the beginning of the time interval between 10.2–10.0 Ma, NNW–SSE (to NW–SE) extension created normal faults and negative flower structures. These show that extension-related fault activity lasted here up to the late Miocene. Shortly thereafter, still in the early part of the time interval between 10.2–10.0 Ma, N–S to NNW–SSE compression ensued and dominated the area ever since. Deformations under this stress field included reverse faulting in the Pannonian marls and sands, folding of the whole succession, with bedding-plane slip and shearingelated block rotation in the already deposited middle and upper Miocene marl layers and continuously changing bedding dips and southward thickening layers in the Pannonian sands. Lake level changes of Lake Pannon must have played a role in the formation of an angular unconformity within the sands besides compression. The compressional event can be explained by the Africa (Adria) – Europe convergence, but cannot be correlated regionally; it pre-dates basin inversion-related events reported from the region so far.
User Perceptions of Mobile Banking Apps in Tanzania: Impact of Information Systems (IS) Factors and Customer Personality Traits
Authors: Koloseni Daniel Ntabagi
Published: December 2021

This study probes the roles that information systems (IS) success factors and user personality traits play in Tanzanian users’ perceptions of their experiences with mobile banking apps. Based on a survey of 249 mobile banking customers, the study finds that users are being positively influenced by the apps’ system quality and system service, but not by the apps’ information quality. The study also finds that, with respect to user personality traits, openness, agreeableness, conscientiousness and extraversion are all traits that have a positive impact on customers’ use of, and satisfaction with, mobile banking apps. The findings suggest that developers of mobile banking apps for the Tanzanian market need to both improve the quality of the information in the apps and continue to target a range of personality traits.
Social Media Use, Disbelief and (Mis)information During a Pandemic: An Examination of Young Adult Nigerians’ Interactions with COVID-19 Public Health Messaging
Authors: Akingbade Olutobi
Published: December 2021

This study contributes to transdisciplinary understanding of the COVID-19 pandemic through an examination of perceptions of public health messages as consumed primarily through social media by a purposively enlisted set of young adult Nigerians. The research used focus group discussions and in-depth interviews to elicit the views of 11 young adults, aged 21 to 24, resident in Ajegunle, a low-income community in Lagos, Nigeria’s commercial capital. The study identifies the centrality of social media platforms to the respondents’ processes of meaning-making, and draws on Hall’s (1980) encoding/decoding model in order to bring to the fore their oppositional interpretations of public health messages. The study also identifies respondents’ varying levels of disbelief about the realities of COVID-19, their mistrust of the government officials conveying and enforcing decisions to combat the pandemic, and the propensity for the social media messages they consume and propagate to serve as channels of misinformation.
Clinical Spectrum and Neuroimaging Changes in Neurodegenerative Disorder-Experiences in Tertiary Care Hospital of Bangladesh
Authors: Kundu Gopen Kumar , Islam Rumana , E-Sabah Noor , Mukib ABM
Published: December 2021

Neurodegenerative diseases (NDD) are a heterogeneous group of disorders characterized by progressive loss of previously acquired skills that are of varied etiology, clinical manifestations, and natural course. There is a paucity of data on clinical profile of neurodegenerative diseases in our population.

We conducted a retrospective study with 68 diagnosed cases of NDD at a tertiary care hospital in Bangladesh. Among them, more than one-third of children were in 1-5 years age group. The mean age was 10.2±3.1 year and male to female ratio was 2:1. Fifty percent of cases had a history of consanguineous parents. Leukodystrophy was most common (30.88%) among NDDs, followed by Wilson disease (26.47), SSPE (22.1%), and Degenerative Ataxia (20.59%).

Motor skill regression was the most common presentation (97%), followed by speech regression in 91% and Gait disorder in 83% of children. Seizure was presenting features in 24% of children. Neuroimaging abnormalities were found in 80.88% NDD cases. Among them white matter hyper intensity in 29.41%, cerabeller atrophy in 13.25 %, and cerebral atropy in 11.76% of children. Eye changes were found in about two-thirds (69.12%) of cases of NDD. Among them, optic atrophy was found in 29.41%, and KF rings in 25.00% of cases.
An Evaluation of Different Quail Varieties for the Heat Stress Resistance
Authors: Aslan Sultan , Eroglu Mehmet , Baykalir Yasin , Oymak Yasemin
Published: December 2021

The aim of this study was to evaluate some biochemical variables under heat-stressed Japanese quail that have different plumage colors for detecting that variety of quail better adapted to heat stress. A total of 100 birds were used in this study. The 25 birds that belong to each four plumage color group were placed in 5-tiered including 3 compartments in each tier plastic cages with subdivided 5 repetitions according to their initial body weights. The statistical significance occurred in LDH (P<0.01). The highest LDH level was found in the Recessive white variety (25.43 mmol/L), followed by Wild type (23.78 mmol/L), Golden (12.87 mmol/L), and Tuxedo (12.71 mmol/L), respectively. The Recessive white group was different from the Golden and Tuxedo groups. According to the results of the current study, there was no significant difference was observed between the four different color varieties of Japanese quail regarding heat stress. However, when LDH is taken into account, it can be thought that the white color may be more sensitive to stress. In order to clarify exactly this situation, more studies that are detailed such as yield performance can be conducted on different quail species.