bluuebunny/crossref_metadata_2025 huggingface dataset:
Relação entre a autoeficácia e os estágios do processo decisório: análise da percepção dos futuros administradores
Authors: Karpinski Atais Catarina , Cogo Dieli Cristina , Antonelli Ricardo Adriano , Meurer Alison Martins
Published: February 2021

Purpose – This study analyzes the relationship between self-efficacy and the stages of the decision-making process, based on the perception of the undergraduate students in bachelor degree in Business Administration.Design/methodology/approach – It characterizes as a descriptive research, with a quantitative approach, using the Structural Equation Modeling technique, and data collection performed through a survey.Findings – The results indicate an association between self-efficacy and the stages of the decision-making process, allowing partial acceptance of the research hypothesis. In this sense, Effectiveness towards Adversity and Social Efficacy are shown as elements to be observed in terms of developing skills, which enable the students to realize such constructs, since there is a significant relationship with behavior in the decision making process. Thus, self-efficacy is presented as a propeller of the individual's confidence in the challenges and experiences with interpersonal relationships, whose experience supports the cognitive process which enables the recognition of the situation and the actions to be developed. Moreover, it is worth noticing the relevance of considering behavioral aspects in decision-making studies; regarding to, as well, the current discussions about the limitations of rational decision models.Research limitations/implications – The cross-section time frame and the sample composition of academics at a university are limitations that can be overcome in the future.Originality/value - Analyzing the relationship of self-efficacy with the stages of the decision-making process becomes relevant, since it brings contributions on the relationship of subjective abilities with decision making, in order to highlight characteristics not covered by rational decision-making models.
Desempenho Empresarial Superior e Cultura Corporativa na América Latina
Authors: Góis Alan Diógenes , De Luca Márcia Martins Mendes
Published: February 2021

Purpose – Within the framework of Resource-Based View (RBV) we evaluated the relationship between corporate culture and superior business performance in a sample of 62 Latin American firms traded on the NYSE.Design/methodology/approach – Data retrieved from 20-F forms and the CRSP database, covering the period 2011-2016, was submitted to multiple linear regression with robust errors and random effects. Findings – Our results revealed that i) the 7 Latin American countries represented in the sample displayed a very similar mix of corporate culture, with a slight predominance of the competitive type, ii) less indebted and larger firms attained higher levels of superior business performance, and iii) auditing by one of the Big Four was associated with better performance in firms with competitive and creative culture. In the multiple regression analysis, creative culture was the best explanatory factor of superior corporate performance. Thus, we conclude that a culture with an emphasis on innovation generates competitive advantage.Originality/value – The organizations should make efforts to understand and manage the dynamics of corporate culture, harnessing their own dominant culture in the quest for superior corporate performance. As posited by RBV, our results show that investment in creative and innovative culture is particularly favorable to the creation of competitive advantage and, consequently, business performance.
Turnover de CEOS e retorno anormal: efeitos da intensidade da divulgação de notícias em jornais econômicos
Authors: Matos Ruben Mendes , Colauto Romualdo Douglas
Published: February 2021

abnormal returns and CEO turnover motivations disclosures intensity based on the Efficient-Market Hypothesis (EMH) in its semi-strong form.Design/methodology/approach: A panel data of 65 events publicly traded Brazilian companies that have a Pension Fund among their shareholders, between 2010 and 2014 were used. Applying the Event Study methodology, the ordinary least-squares (OLS) multiple regression analysis was used to calculate the abnormal returns. The CEO turnover data were manually collected and systematically crosschecked, and content analysis were employed to identify its motivations. Spearman’s correlation measured the relation between motivation disclosure intensity and the abnormal returns.Findings: Results reveal a positive and statistically significance relationship between the abnormal return and the intensity of news reporting on CEO turnover.Practical Implications: The study it allows to understand whether the disclosure intensity of the CEOs turnover motivations affects the magnitude of the abnormal returns in firms of which the Pension Funds participate in the capital. Social Implications:  The findings have one important implications in firms of which the Pension Funds participate in the capital. It makes possible to assess the Brazilian market behavior in the event of CEO's changing, as sophisticated and regulated institutional investors.Originality/Value: This study extended to disclosure intensity and returns literature by offering new evidence on the effect of CEO turnover motivations disclosures intensity on the market abnormal returns for Brazilian firms.Keywords: CEO turnover. Returns. Intensity of disclosure.
Modelo de avaliação de desempenho global para instituição de ensino superior
Authors: Galvão Henrique Martins , Corrêa Hamilton Luiz , Alves José Luiz
Published: February 2021

This study proposes a model to evaluate overall performance for Higher Education Institutions. It is unquestionable the importance of organizations from the education sector for knowledge development and dissemination of information, necessary for the progress of a city, region or country. However, it is necessary to develop tools for planning and management control to monitor organizational performance. In this case, one of the most important tasks is related to the types of information that managers need to monitor and tune the performance of the organization. The proposed evaluation model helps to improve the organizational performance of education institutions, creating higher value in the services offered.
Responsabilidade social corporativa e o desempenho de mercado de empresas brasileiras
Authors: Degenhart Larissa , Giordani Mikaéli Da Silva , Halberstadt Ismael Alan , Soares Cristiano Sausen , Zonatto Vinicius Costa da Silva
Published: February 2021

Purpose – This research aimed to analyze the relationship between Corporate Social Responsibility (CSR) and the market performance of Brazilian companies.Design/methodology/approach – A descriptive, documentary and quantitative research was carried out using panel data regression. The analysis period covered 2010 to 2018 and the sample comprised 41 companies.Findings – The results revealed that investments in external CSR and the fact that companies are listed on the ISE index increase their market value. The CSR information of Brazilian companies aimed at investments made for a society helps to increase market performance.Research limitations/implications – It should be noted that the results cannot be generalized for all Brazilian companies. This research contributes to the accounting and CSR literature, by analyzing the benefits of CSR on companies' market performance.Practical implications – The findings assist investors in the decision-making process, as companies that have CSR actions have positive impacts on their value, operational efficiency and the ability to generate financial performance.Social implications – The results have social implications, as they reinforce the importance of companies investing in CSR, which can improve their market value and benefit society with practices aimed at social well-being.Originality/value – CSR was analyzed in several aspects in the accounting literature. However, the focus of the relationship between CSR and specifically market performance has been little explored in Brazil, a fact that denotes research value.
Entrepreneurial skills and its relationship with MSMES performance
Authors: Macedo Karieli Belli de Mello , Hahn Ivanete Schneider , Bianchi Julia , Ogoshi Rosana Claudio Silva
Published: February 2021

Purpose – This research aimed to study the relationship between entrepreneurial skills and MSMEs (Micro Small and Medium Enterprises) performance.Design/methodology/approach – A quantitative and descriptive research was conducted, operationalized through a survey with 47 MSMEs entrepreneurs.Findings – (1) Most responding entrepreneurs seek opportunities, take calculated risks, and often demand quality and efficiency in their activities within the company. It can also be noted that they always pointed to being persistent, committed and seeking information. They also demonstrated that they often set goals, plan and monitor, maintain contact with their networks, are independent and self-confident; (2) the majority (60.4%) are in high sales growth, 14.6% found to be very profitable and 68.7% have medium to high profitability, 68.8% of them have good market share - so, companies show a positive perception of performance; (3) it was possible to verify that there is a relationship between entrepreneurial skills and the performance of MSMEs. Research implications – even young adults are a representation of future main leaders there is no significant difference between their entrepreneurial skills with other MSMEs owners. Moreover, in the set power, in our study just Persuasion and Network showed relation with performance, even in previous study independence and self-confidence had a relationship with performance.Originality/value: It was possible to conclude that the systematic planning and monitoring and the persuasion and network of contacts are the decisive entrepreneurial characteristics in the performance of the MSMEs.
Differences in attitudes and behaviors of religious tourists: comparative research between Brazil and Portugal
Authors: Campos Waleska Yone Yamakawa Zavatti , Rodrigues Maria Carolina Martins , Rosa Luciana Aparecida Barbieri da , Barbosa Raul Afonso Pommer , Sousa Maria Jose , Cohen Marcos
Published: February 2021

EPurpose – The study aims to explore the particularities of religious tourists' attitudes and behaviors with different demographic profiles. Therefore, this work aims to verify if there are differences between the attitudes and behaviors of Brazilian and Portuguese religious tourists in terms of gender, nationality, and religiosity.Design/methodology/approach –  A survey was carried out with 396 religious tourists residing in Brazil and Portugal, who have visited religious destinations in their country or abroad, to carry out a comparative analysis between groups, according to gender, nationality, and religiosity through Student's t-test.Findings - The results show significant differences in tourists' attitudes and behaviors who visit sacred places divided between women and men, Brazilians and Portuguese, and finally, between those who consider themselves religious and non-religious.Research limitations/implications – The study's limitations involve the use of an instrument with a particularly Christian bias.Practical implications – The practical implications of this study include contributions to improving local infrastructure related to hotels, commerce, and tourist services.Originality/value – From a theoretical perspective, this study contributes to the advancement of administrative sciences as it engenders the intersection between religious tourism and public and non-profit marketing, placing the discussion in two countries with a strong religious tradition in the West, Brazil and Portugal.
Trabalho, tecnologia e inovação na indústria de processo contínuo: as transformações na indústria brasileira de celulose de mercado.
Authors: Santos Glicia Vieira dos , Araújo Angela Maria Carneiro , Gitahy Leda Maria Caira
Published: February 2021

The article aims to analyze the effects of globalization and productive restructuring to the organization of production, workers and trade unions of the Brazilian pulp and paper. This is an industry internationalized, whose trade relations is made between countries. The methodological procedures included: literature research, field research, documents research, analysis of statistics on the labor market, visits to companies and unions, and interviews. The central argument is that the changes associated with globalization have a major bounce inside the factories, changing the balance of power between the various actors involved in the production. Worker participation is an important asset for the companies surveyed. The restructuring that occurs in this industry (from the second half of the 90s) is ‘systemic’, crosses the boundaries of firms, reverberating throughout the production chain:  restructuring of supply chains internationally, redefinition of managerial strategies of companies, changes in relationships with local communities, changes in relationships with firms that comprise the supply chain of products and services and the reformulation of trade union strategies. Management decisions ‘techniques’ that hide a dimension ‘policy’ changed the power relations between chiefs, engineers and workers of the factory floor. Technological advances and changes in the plan of work organization and human resource policies are understood here as integrated measures that complement each other to influence participation and productivity growth in a context marked by increasing competitiveness and competition.
Expositions of ‘degenerate’ art and music in nazi Germany: reflections on totalitarian aesthetics and education
Authors: Roitberg Guilherme Prado , Baptista Fabiana Maria , Gomes Luiz Roberto
Published: February 2021

Durante o Terceiro Reich (1933-1945), os intelectuais nazistas conceberam a música e as artes plásticas como elementos formadores de valores morais, podendo corromper a educação e comprometer a vida política e social. A partir da formulação teórica da estética totalitária, toda arte considerada "degenerada" passou a ser censurada e exposta como exemplo de imoralidade. Inauguradas em 1937, as exposições Entartete Kunst (Arte Degenerada) e Entartete Musik (Música Degenerada) trouxeram até a cidade de Munique obras ligadas ao modernismo, ao bolchevismo, bem como a produção artística de negros, judeus e soviéticos. Com base em uma pesquisa bibliográfica amparada pela teoria crítica da sociedade, o presente artigo analisa o conteúdo dessas exposições, demonstrando a caráter pedagógico da arte na formação dos valores morais da sociedade alemã, sob a ótica dos intelectuais nazistas.
O processo de escolha dos livros didáticos por professores de Arte : Mediações (in)imagináveis
Authors: Teuber Mauren , Romanelli Guilherme Gabriel Ballande
Published: February 2021

Esta pesquisa, em andamento, tem como objetivo compreender as dinâmicas relativas ao processo de escolha e uso dos livros didáticos de Arte na escola pública. A primeira etapa do estudo, caracterizado como uma pesquisa qualitativa, é um trabalho coletivo e colaborativo na elaboração de um questionário para obter informações relativas ao processo de escolha dos livros de Arte do Programa Nacional de Livro Didático – PNLD 2020 e uso dos livros didáticos de Arte na escola. Realizada junto a um grupo 32 professores de Arte que atuam na Educação Básica no Estado do Paraná, o resultado aponta para a presença do livro didático em quase todas as escolas dos professores participantes. Em contrapartida, reconhece-se a urgência de se tratar deste tema na formação inicial e continuada, em função da pouca tradição que o livro tem na disciplina, e a pequena valorização desta temática no âmbito da pesquisa acadêmica.
Efeitos da formação inicial de professores em Tecnologia Assistiva através de metodologia problematizadora
Authors: Schirmer Carolina Rizzotto , Nunes Leila Regina d’Oliveira de Paula
Published: February 2021

O estudo teve como objetivos planejar, implementar e avaliar os efeitos de um programa de formação inicial de professores para atuar com recursos de Tecnologia Assistiva (TA) e de Comunicação Alternativa (CA) nas concepções sobre deficiência desses futuros professores e em sua atuação educacional junto a alunos com deficiência e Transtorno do Espectro Autista (TEA). Uma pesquisa-ação foi conduzida com 37 alunos da graduação do curso de Pedagogia, 26 alunos com deficiência sem fala articulada, e cinco professoras de uma escola especial da rede pública de ensino. Os procedimentos metodológicos envolveram: a) aplicação de questionário aos graduandos no início e ao final do programa; b) oferta de aulas expositivas e desenvolvimento de atividades de ensino pelos graduandos junto aos alunos com deficiência e TEA, de acordo com a Metodologia da Problematização — observação da realidade, seleção de problema pedagógico, reflexão sobre os determinantes do aluno, elaboração de hipóteses, pesquisa bibliográfica, elaboração, implementação e avaliação de plano de ensino. Os dados mostraram efeitos positivos nas concepções dos graduandos em relação aos conceitos de deficiência, TA e CA, e atendimento educacional bem-sucedido, com emprego de muitos recursos e estratégias de CA, material pedagógico adaptado e recursos de acesso ao computador. O estudo beneficiou, ainda, os professores da escola especial, que passaram a conhecer tais recursos, e os alunos com deficiência, que ampliaram as oportunidades de comunicação e interação social.
As multiplicidades rizomáticas do sujeito-surdo-social-plural no processo de letramento bilíngue
Authors: Esteves Ângela Simone Mattos , Braz Ruth Maria Mariani , Silva Dagmar De Mello e
Published: February 2021

Este é um estudo de caso atravessado por uma cartografia aqui apresentada como campo de forças e relações que nos faz refletir. Portanto, trata-se muito mais de agenciamentos sociais e científicos que transformaram modos de pensar do que propriamente de proposições a respeito de métodos adequados de como ensinar o Português para os surdos. Arriscaríamos dizer que este foi um trabalho auto formativo, que foi se desdobrando ao longo do tempo, mostrando-nos que precisamos dar continuidade ao processo de cartografar e “desemaranhar” as múltiplas linhas que enredam a teia histórica que separa surdos de ouvintes. Concluímos que as pessoas surdas também necessitam de metodologias diferenciadas que devem ser usadas por professores nas aulas, respeitando a sua singularidade linguística. Nem todos os surdos partem do mesmo ponto no ato de aprender e não dispõem dos mesmos recursos para isso. A análise desses registros nos permitiu observar a criação do ato de pensar. Sendo assim, este trabalho teve, também, a intenção de produzir cartografias possíveis desses processos através de registros manifestos do ato de pensar e, a partir disso, a construção das reflexões sobre o aprender que transcende o que se faz materialmente na sala de aula.
Alunos com deficiência intelectual e aprendizagem significativa: uma sequência didática sobre o tema - coronavírus
Authors: Hammel Cristiane , Santos Sandro Aparecido dos , Miyahara Ricardo Yoshimitsu
Published: February 2021

O presente artigo vai relatar o planejamento, desenvolvimento e aplicação de uma sequência didática no formato de Unidade compartilhada de Ensino Potencialmente Significativa (UcEPS), uma variação da Unidade de Ensino Potencialmente Significativa (UEPS), sobre o tema Coronavírus. Esta alternativa diferenciada justifica-se pelo fato de tratar-se de um trabalho interdisciplinar, ou seja, o compartilhamento refere-se a abordagem do tema por mais de uma disciplina. A metodologia utilizada foi de cunho qualitativo. Os alunos que participaram deste trabalho frequentam a Escola Estadual na modalidade de Educação Especial Emílio Mudrey, na cidade de Turvo, no interior do estado do Paraná, são dezoito alunos de turmas daEJA (Educação de Jovens e Adultos). O objetivo principal foi verificar a pertinência da utilização desse tipo de sequência didática que, intrinsecamente oportuniza a aprendizagem significativa através dos oito passos nela previstos e, se foi possível verificar indícios dessa aprendizagem nos alunos. O texto é enriquecido com a fundamentação teórica necessária para subsidiá-lo, dessa forma serão tratados assuntos como deficiência intelectual, sequência didática e aprendizagem significativa. Observou-se no findar da aplicação da UcEPS que a mesma produziu bons resultados e, que evidências de aprendizagem significativa puderam ser percebidos, podendo assim afirmar que este tipo de sequência tem potencial para ser considerada uma alternativa proveitosa para o ensino de alunos com deficiência intelectual.
Avaliação da variação da temperatura superficial na lagoa rasa de Itapeva mediante a imagens de satélite
Authors: Gonzalez Avila Itzayana , Risso Alfonso , Paixão Mauricio Andrades
Published: February 2021

The role of temperature in water is fundamental for the community aquatic dynamics once it regulates several processes on different scales. The spatial and temporal variability of water temperature can be assessed by satellite images, which allows a better understanding of ecosystems. In this work, we evaluated the surface temperature variation of Itapeva Lake, located in Rio Grande do Sul, Brazil, between 1985 and 2017, using MOD11A1 product and images Landsat 5, 7 and 8. An homogeneous seasonal variation pattern was identify between the two sensors used. The information provided by MODIS and Landsat has a coefficient R2 = 0.91 and RMSE = 2.32 ° C. The analysis between the Landsat series adjusted data and the original data allowed the smoothing of maximum and minimum temperatures of water, reducing biased records. Water temperature for the summer and autumn months increases, while for the winter season the regime decrease. However, the surface temperature response may be better understood by involving climatic variables in the study.
Haemosporidian parasites prevalence associated with physical conditioning of avian species from the Brazilian Cerrado
Authors: Ribeiro Paulo Vitor Alves , Baesse Camilla Queiroz , Tolentino Vitor Carneiro de Magalhães , Oliveira Marco Miguel de , Cunha Maria Júlia Rodrigues da , Melo Celine , Cury Márcia Cristina
Published: February 2021

Blood parasites can infect myriad avian species and thereby affect the fitness and survival of their hosts. There is wide interspecific variation in parasite prevalence related to biological, ecological, and evolutionary host factors. This study aimed to determine the blood parasite prevalence in avian species from the Brazilian Cerrado and to investigate the associations among biomass, body condition, and blood parasitism. A total of 1,098 blood smears from 549 individuals (56 species) collected in four forest fragments were analyzed. Of these, 109 (19.85%) individuals from 33 species were infected: 13 (2.36%) were positive for Haemoproteus and 103 (18.76%) for Plasmodium. There was co-infection between both genera of parasites in 7 individuals. Among bird species, prevalence ranged from zero to 100%. There were significant positive correlations between prevalence and biomass and the body condition index. Hemosporid vectors track their hosts by carbon dioxide detection. Since large organisms emit more carbon dioxide, our results suggest that larger birds may be more susceptible to hemosporid vectors. Additionally, species with higher body condition indices can be more tolerant to parasites, possibly because they have more energy reserves. This study showed that species with higher biomass and body condition indices were associated with higher blood parasite prevalence, a finding that suggests these factors are efficient predictors to explain the interspecific variations. This information could be important for the understanding parasite-host relationships and useful for bird conservation programs.
Satisfação dos usuários de um Restaurante Universitário: adaptação de uma escala a partir da Teoria da Resposta ao Item
Authors: Peripolli Angelica , Palm Bruna Gregory , Piekala Caroline Pafiadache da Silva , Loose Laís Helen , Piaia Rafael , Scher Vinícius Teodoro , Moreira Junior Fernando De Jesus
Published: February 2021

The client’s opinion is one of the most accurate way to evaluate the performance of an organization. The university restaurants play an important role in public institutions of undergraduate education, representing the democratization of the university space, contributing to dropout rate reduction, and improving living conditions for the clients. Item response theory has been presenting good performance in different management applications, including customer satisfaction assessment. Thus, the goal of this paper is to create a scale to evaluate the user satisfaction level of the Universidade Federal de Santa Maria (UFSM) restaurant considering the two-parameter logistic model (2PL) and item response theory (IRT). The data were obtained based on a form prepared using the Google Docs program, in a total of 1.855 respondents. A descriptive analysis of the considered data is presented and the 2LM model was fitted. The results show at what level of the satisfaction assessment the clients of the UFSM university restaurant are situated and the interpretation of the levels. The 2PL and IRT are identified as suitable tools for the data analysis.
Influência da polimerização adicional na microdureza de compósitos diretos para uso indireto: estudo in vitro
Authors: Marcehsan Carlos Henrique Camilo , Dullius Angela Isabel dos Santos , Ansuj Angela Pellegrin , Nunes Vinícius Pinheiro , Biachi Gislaine Rosa
Published: February 2021

The aim of this study was to verify the effect of additional polymerization with microwave and autoclave on the microhardness of 3 different commercial brands of composite resin compared to the ceromere. Cylindrical specimens (6mm x 3mm) were made with a split matrix divided into 10 groups of 13 bodies, with: Photoactivation (LED light on the top surface-40s; photoactivation LED + microwave (500W per 3min) immersed in 100ml distilled water and Photoactivation LED + autoclave (full cycle). The Ceromere group was activated according to the manufacturer's recommendation. The specimens went through a finishing and polishing sequence being stored with a cotton moistened in distilled water for 24h. They were taken to the microhardness meter (three dentations, 50g/15s load). The analysis of variance (ANOVA) was performed with post hoc Games Howell at a level of 5%. It was verified that the ceromere did not differ from the groups Z250 photo and microwave, but was inferior to the Z250 group with autoclave, and the microhardness of this was higher than the other groups. The Tetric group was inferior to all other groups. It was concluded that the additional polymerization methods promoted an increase of the superficial microhardness of the Z250 resin and this did not present a difference of microhardness when compared to the Ceromere
Estudo ecológico de séries temporais sobre a mortalidade por câncer de pele na Região Sul do Brasil
Authors: Nunes Vinicius Pinheiro , Dullius Angela Isabel dos Santos , Silva Vanessa Siqueira Peres da , Silva Michael Gonçalves da , Ansuj Angela Pellegrin
Published: February 2021

The aim of this study was to analyze the mortality trend and to adjust a time series model for neoplastic skin diseases, from 1996 to 2012, in southern Brazil. To do so, conduct an ecological time series study using quarterly death data. The ARIMA Model (4,1,0) was the one that had the best fit for the date adopted and validated with date from 2013. It can be seen in this study that there is an increase in the number of deaths from skin cancer over time, How Which can be approved by the given model, and which can be helpful in planning public policies for intervention and / or prevention of skin cancer among the population of Southern Brazil.
Autoregressive vectors model in the analysis of the determinants of soybean production in Brazil
Authors: Silva Michael Gonçalves da , Goettems Rafaela , Silva Vanessa Siqueira Peres da
Published: February 2021

The general objective of this work was to identify what were the determinants of soybean production increase in Brazil, between 1980 and 2015. This work uses the Self-Regressive Vector (VAR) methodology for the estimation of empirical models. Allow the obtaining of evidence capable of clarifying the question about the determinant factors of the soybean productivity in this period. They pointed evidences of a greater relation between the soybean productivity increase and the physicochemical innovations. In addition, as the data reveal, there is idle capacity to expand soybean production, as well as increased productivity for the coming years. The empirical analysis suggests that, in fact, soybean productivity in Brazil is increasing, as occurred in the forecast test performed in this study.
Cursos Superiores de Tecnologia: análise a partir dos dados do Censo da Educação Superior
Authors: Tapia Jaiser , Tapia Luiza Da Silva , Vicini Lorena
Published: February 2021

An attempt by education agents to form professionals from higher education, to solve the demands of society, is the offer of Higher  Education Technology Courses. Among their characteristics, these courses must be offered in specific social contexts (local demands and needs) associated with short time academic training (from 2 to 3 years). Although these courses have been in existence since the 1970s, they had a greater emphasis since the 2000s, when the Brazilian legislation was updated and for the government incentives. From descriptive exploratory study, conducted a comparative analysis of the courses offered by public and private institutions. Specifically, analysis about the quantification of courses offered, the study vacancies offered, the graduating students and the relationships between courses, institutions, vacancies and graduating students were conducted. The analysis were performed from the microdata of the Higher Education Census, provided by the Ministry of Education, including data of Census from 2008 to 2017. Among the results obtained, we can highlight the practically linear growth of the offer of these courses, the contrasts between the courses offered by private and public institutions, and the low values for the graduating indicator, which resumes the high dropout rates.
Atitude do professor em relação à estatística: um estudo de caso utilizando a ferramenta EAPE
Authors: Alberti Ricardo , Santos Bruna Freitas dos , Moreira Junior Fernando De Jesus
Published: February 2021

Teachers' attitudes influence both in and outside the classroom through their expectations of students as well as their behavior. The purpose of this article is to know the attitudes of professors of the Statistics Department of a University of south of Brazil, using the Statistical Teachers Attitude Scale (EAPE) and its updated version, the EAPE15. This research is classified as descriptive and exploratory. EAPE and EAPE15 were used in a case study where the data were analyzed through descriptive and correlation analysis. Finally, the study showed that teachers have favorable attitudes towards teaching statistics involving all domains of analysis of the EAPE and EAPE15.
Teoria da Resposta ao Item para analisar atitudes e concepções de acadêmicos na Disciplina de Estatística
Authors: Prates Rosebel Trindade Cunha , Moreira Junior Fernando De Jesus , Dullius Angela Isabel dos Santos , Ansuj Angela Pelegrin , Prates Rafaella Trindade Cunha , Camargo Maria Emília
Published: February 2021

The research aimed to analyze the attitudes and the conception of undergraduate students of the Federal University of Santa Maria in relation to the discipline of Statistics. Were interviewed 256 academics from various undergraduate courses who attended the discipline of Statistics. The applied questionnaire adopted the Likert scale, composed of 20 statements about Statistics, where 10 were positive statements and 10 negative statements, and for data analysis used the Two Parameter Logistic Model of Item Response Theory. The results showed that all 20 items have a good quality and can adequately estimate the level of feeling of students who have a medium feeling in relation to Statistics, between about 1.5 standard deviation around the average. However, there is a lack of items to adequately measure those students who have extreme feelings about Statistics, that is, those who are positioned 1.5 standard deviation above or below average.
Molecular identification of the main allergens present in household dust of asthmatic patients
Authors: Moreira Hyngrid Carolinne Soares Ferreira , Santos Sâmia Melo , Alves Matheus Silva , Bena Maryangela Godinho Pereira , Lopes Giselmo Pinheiro , Bomfim Maria Rosa Quaresma , Lima Neto Lídio Gonçalves , Falcai Angela
Published: February 2021

Introduction: The main aeroallergens present in house dust are the mites,Dermatophagoidespteronyssinus (Derp) andDermatophagoidesfarinae (Derf), and cockroaches,Periplanetaamericana (Pera). Objective: This work aims to genetically identify the allergens Derp, Derf, and Pera in household dust of asthmatic patients. Materials and methods: 29 patients, aged between 3 and 17 years, were classified as asthmatic or non-asthmatic according to the International Study of Asthma and Allergies in Childhood(ISAAC). Subjectscompleted a complementary questionnaire and skin hypersensitivity tests were performed. House dust was collected from these patients, filtered, and then DNA was extracted. Polymerase chain reactions were performed to identify Derp, Derf, and Pera in the samples. Results: There was an association between Pera sensitization and onset of asthma. There was also an association between the presence of Derp in the home of asthmatic patients and the worsening of symptoms, such as wheezing in the chest and allergic rhinitis. An association between the presence of Derf in house dust of asthmatic patients and the symptoms of allergic rhinitis was found. These data suggest that cockroach sensitization is a predominant factor in asthmatic children and the presence of mite allergens contributesto the worsening of asthma symptoms.
Wind Speed Seasonality in a Brazilian Amazon-Savanna Region from the Global Land Data Assimilation System
Authors: Rodrigues Leonardo Henrique De Sá , Freitas Marcos Aurélio Alves , Pereira Luan Victor Soares , Dias Brunna Caroline Correia , Silvino Vicente Marques , Passinho Janaque Nunes , Silva Fabrício Brito
Published: February 2021

The objective of this study was to develop a methodology for the use of remote sensing data for the planning of wind energy projects in Maranhão. Monthly wind speed and precipitation data from 2000 to 2016 were used. Initially, wind velocity data were processed using the principal component analysis (PCA) technique. Next, the grouping technique known as k-means was used. Finally, a linear regression analysis was performed with the objective of identifying the parameters to be used in the validation of the data estimated by the Global Land Data Assimilation System (GLDAS) base against the data measured by the meteorological stations. Four homogeneous zones were identified; the zone with the highest values of monthly average wind speeds is in the northern region of the state on the coast. The period of greatest intensity of the winds was identified to be in the months of October and November. The lowest values of precipitation were observed during these months. The analyses carried out by this study show a favorable scenario for the production of wind energy in the state of Maranhão.
Evaluation of the quality of superficial sediment using principal components analysis of the physical–chemical attributes of the Mearim River – Brazil
Authors: Lima Neuriane Silva , Silva Darlan Ferreira da , Nunes Neto Wallace Ribeiro , Silva Delmo Matos da , Sousa Leila Cristina Almeida de , Silva Maria Raimunda Chagas
Published: February 2021

The Mearim River is one of the main rivers of Maranhão, which, over the years, has been affected from pollution caused by human activities such as deforestation, disposal of domestic effluents, and agricultural activities, among others. The objective of this research was to evaluate the environmental quality of the Mearim River through the study of the sediment in different periods. In order to investigate this question, four sampling points (P1- Balneário, P2-Cais, P3-Trizidela, and P4-Matadouro) were submitted to particle size analysis (clay, silt, and fine sand) and physico-chemical analyses (pH, organic matter, and inorganic and organic carbon). Two principal components were generated in principal component analysis, explaining 73% of the total variance among the parameters within the studied periods. The overall analysis of the data set by principal component analysis highlighted two clusters: one relating the attributes to three sampling points analyzed in the rainy season and another relating the attributes to four sampling points analyzed in the dry period. Multivariate analysis of the data showed that the orga­­­­­­­nic matter, clay, and pH parameters were directly correlated with the dry period (correlation coefficients 0.41), and inorganic matter (correlation coefficient = | 0,414) was more sensitive in the rainy season.
Environmental technologies used for the mitigation of industrial environmental impacts
Authors: Santos Claudson Gomes , Carvalho Eloiza Suimay Azevedo
Published: February 2021

With the growth of the world population, constant technological evolution and consequent change in the habits of our society, human activity is gradually increasing its capacity of alteration to the environment. Small acts of environmental preservation result in great feats for the ecosystem, for humanity and are preludes for the continuity of life. This study discusses the dispersion of pollutants caused by industries, the importance of the remediation technologies used, which can prevent and / or mitigate the impacts that are caused to the environment. This study is a comparison between end-of-pipe technologies and cleaner production, which are the most used by industries. It was based on the environmental impacts caused by the industries and on the most used remediation technologies as mechanisms to reduce or prevent these impacts.
Ecotoxicological monitoring of urban reservoir sediment located in the coastal region of northeastern Brazil
Authors: Nobrega Thiago Farias , Souza Raquel Franco , Medeiros Guilherme Fulgencio
Published: February 2021

The Extremoz lake, Northeastern Brazil, is an urban water reservoir, used for domestic and industrial activities. The objective of this work was to analyze the quality of the bottom sediment of three sampling stations (T1, T2 and T3) with heterogenous humanoccupation level. The samples of sediment from these stations was collected monthly (February to November 2014). This analysis involved the concentration of metals (Cd, Cu, Cr, Pb, Ni, F e and Zn), content of organic matter (OM), carbonate (CaCO3), granulometry and acute toxicity of sediment in ten days bioassays with the amphipod Hyalella azteca, as well as monthly rainfall data and the occupation of the surroundings of the water body. The number of toxic events to H. azteca is higher in the rainy months (March, May, June, July and September) and in the more urbanized station (T2). Some variable exhibit positive correlation, as the heavy metals, OM and the silt-clay grain sizes. This is expected because the OM and the fine fractions of the sediment have a higher specific surface area and hence more binding sites for the heavy metals.
Development of Aerenchymal Formations and Adventitious Roots in Eragrostis plana and Eragrostis pilosa Submitted to a Flooded Soil Environment
Authors: Peripolli Mariane , Dornelles Sylvio Henrique Bidel , Carloto Bruno Wolffenbüttel , Trivisiol Vinicius Severo , Buriol Galileo Adeli , Rubert Jaíne
Published: February 2021

The experiment was accomplished in a greenhouse, where the mechanisms adaptive to the hypoxic environment of Eragrostis plana and Eragrostis Pilosa where evaluated when submitted to three conditions of humidity of the soil (50% of CRA, 100% of CRA and soil with sheet of water of 10 cm). The plants morphologic-anatomical indexes were appraised, and the aerenchymal formations and adventitious roots in the surface of the soil were quantified. In addition, the photosynthetic pigments and the electron transport capacity of the photosynthetic chain were quantified. It was noticed that the answers were similar among the species when submitted to an environment of water removal, showing more aerenchymal formations in the roots and adventitious roots in the surface of the soil. Negative effects on the electron transport and chlorophyll pigment formation were verified when submitted to the hypoxic environment showing reduction in dry mass of aerial and aerial parts, as well as a reduction in the emission of profiles. The evaluation of the plastic capacity of growth and development of the studied plants allows to conclude that the irrigation water management and water removal in rice crop are important in its control, due to the negative effects caused to the growth and development of the crop.
Comparison of temporal and spatial variation of periphytic algal community in two urban lakes in Umuarama-PR (Brazil)
Authors: Godoy Rodrigo Felipe Bedim , Trevisan Elias , Crisiogiovanni Enzo Luigi , Nudi Matheus Haddad , Porto Carlos Eduardo , Rodrigues Lucas Augusto Pereira , Santos Marcela Barbosa dos , Rocha Anne Heloise , Tavares Lilian , Ruggeri Marcus Vinicius Ribeiro , Andrade João Gabriel da Silva , Nascimento Gilberto Soares
Published: February 2021

Water resources are very important for all living organisms, and as being of vital importance need to be preserved. Thus, many water bodies are monitored as an essential strategy for identification of possible alterations over space and time. The analyses were performed in two different hydrological conditions, and water sample and rocks were collected in two different points at each lake. The results showed higher values of Ammoniacal Nitrogen in Aratimbó Lake, mainly during dry period (Ammoniacal Nitrogen = 4.2 mgL-1) at P1. However, P2 at Tucuruvi Lake presented higher concentration of Orthophosphate (2.24 mgL-1). Total Periphyton density also demonstrated variation among the different hydrological scenarios and lakes. The Highest density was of 385.30 10³ ind.cm-2at Aratimbó Lake and 180.43 10³ ind.cm-2at Tucuruvi Lake in rainy condition. Comparing the predominance of species, In Aratimbó Lake, Chlorophyceae class was predominant at P1, while Cyanophyceae class was predominant at P2. In dry period, Bacillarophyceae class was seen as the predominant class for both of lakes and for all sampling points. Differently from Aratimbó Lake, in Tucuruvi Lake Bacillarophyceae class was predominant in both of hydrological scenarios.
Ecological burial proposal for the city of Curitiba (PR)
Authors: Koche Katryni Calistro Furtado , Ehrenfried Thais Cristine Grein , Silva Frederico Fonseca da , Seguin Janaina
Published: February 2021

In this present work, the current issue of crowding of the public cemeteries, mainly the municipal ones, of the city of Curitiba was discussed. Given the above, the immediate counterpoint is the proposal of the cremation process. However, it believes that there exists a model that uses the positive parts of both processes, being the same alternative, harmonic and environmental with implantation of trees in their internal areas (but extended to the external areas, as an act of continuity). From the environmental point of view, the cremation does not contaminate the soil and the water table with the necrochorume and to put trees in the place of the mausoleums, taking that somber air of conventional cemeteries, is the proposal presented without hurting existing customs and traditions by peoples and religions.
Analysis levelized cost of energy from the perspective of an power purchase agreements for airborne wind power technology
Authors: Mendonça Anny Key De Souza , Bornia Antonio Cezar
Published: February 2021

With the need to diversify the national electric matrix to expand the generation capacity, the searches for new technologies capable of contributing to supply the national demand are fundamental. In this sense, the development of wind energy technology, but specifically high-altitude wind energy using wired airfoils, is an attractive possibility, given the high national wind potential. This research aimed to analyze the cost models used in the literature to assess the leveled cost of energy (LCOE) from the perspective of an power purchase agreements (PPAs) and to simulate the leveled cost of energy for a wind farm with the innovative technology of wired airfoils. For this, we chose two cities Fortaleza (CE) and Florianópolis (SC) to carry out the simulations. The wind farms are identical, with the same number of wind turbines, the parameters that have been modified are, the amount of energy supplied by each of the scenarios, to visualize the influence of the capacity factor of each scenario within the real and nominal LCOE and the PPA real and nominal after 20 years of analysis. As wind energy is not a constant source of supply, the simulation considered the limits of energy delivery that are above or below the minimum limit of energy delivery. The results demonstrated economic viability in almost all scenarios, with greater attractiveness for scenarios with an increase in the capacity factor. When financial parameters such as federal and state charges are varied downwards, all scenarios investigated are attractive to development with an IRR greater than the reference value.
Numerical simulation of the neighborhood effects on the wind loading over standard model-scale tall buildings
Authors: Andrade Fernando Oliveira de , Maciel Cristiano , Filho Roberto Carlos Moro , Marques Marcelo
Published: February 2021

Numerical simulations of atmospheric flow were carried out in this study in order to evaluate the neighborhood effects on the wind loading over standard model-scale tall buildings. The computational models were developed by solving the steady-state Reynolds Averaged Navier-Stokes equations (RANS equations) with turbulence treated by a k-ε model. Two building positioning scenarios were simulated: scenario-1 consisted of the isolated configuration of a standard model-scale building and scenario-2 was composed of the standard building with a selected neighborhood. Both scenarios were analyzed for wind incidence angles of zero, 45, and 90 degrees. The numerical results were obtained in terms of pressure and force coefficients which allowed the determination of neighborhood factors. The simulations showed that the neighborhood influences the mean wind loading on the faces of the standard building, sometimes amplifying the load (in the case of incident winds at zero and 90 degrees), sometimes attenuating the acting forces (in the case of incident winds at zero and 45 degrees). The numerical results were compared with experimental data and showed similar orders of magnitude suggesting that the simulations correctly describe the physical behavior of the wind action.