Serviço de referência virtual via chat: uma análise comparativa em bibliotecas universitárias norte-americanas e brasileiras

Pós-graduação em Ciência da Informação - FFC

A dimensão interdisciplinar da análise documental nos contextos brasileiro e espanhol no âmbito da organização do conhecimento

Information organization can be considered as a nuclear area in Information Science and its historical background has been historically built based on three theoretical approaches: subject cataloguing, under a North-American influence, Indexing, under a British influence, and document analysis, under a French influence. In this sense, although one can consider the strong influence of the logic-linguistic approach of the French tradition in information organization both in Brazil and in Spain, it is not already clear in what extent the mentioned influence specifically occurs in Brazil and Spain as well as what are the dialogical perspectives between them. So, and in order to analyze how the Information Science academic environments in Brazil and in Spain conceive the interdisciplinary relationships in the domain of document analysis (DA), it was applied a questionnaire to Brazilian and Spain DO researchers based on the records of the Brazilian and the Spanish International Society for Knowledge Organization chapters. The results (64,5% of answers in Brazil and 60,6% in Spain) allowed the identification of 35 DA interdisciplinary relationships in Brazil and 98 in Spain, whose data were so grouped in 7 matrixes ? cognitive, philosophical, historical, logic-lingusitic, quantitative, social and political, and technological. It was possible to observe that the logical-linguistic matrix is strongly predominant (90% of the answers in Brazil and in Spain) what reflects the influence of the ideas of Jean-Claude Gardin. On the other side, the graphic visualization of authors´s network showed a strong perspective of dialogical relationships among Brazilian and Spanish DA researchers, based on the convergence of theoretical conceptions, what allow us to conclude the need of joint research policies between both coountries in order to make the mention ed dialogical relationships real and fruitful.

Brasil, Argentina e Coreia: uma análise comparativa (1970-1990)

The present article concerns on the development of Brazil, Argentina and South Korea in a comparative manner during the 1970s and 1980s. We tried to show that the structural crisis of capitalism and the restructuring of the system have closed the possibilities of Brazil and Argentina‘s development while Korea that engaged in an export strategy achieved a qualitative jump on its economy.

Atendimento Educacional Especializado: análise do índice de evasão de professores em curso de pós-graduação, na modalidade a distância

This research aims to investigate the possible causes for the dropout of participants under instruction in distance courses. Data gathered from the Specialization Course in Specialized Educational Support Services - SES, sponsored by the Department for Continuing Education, Literacy and Diversity of the Ministry of Education - SECAD / MEC - and the Open University of Brazil – OUB, will be analyzed. The objective of the course is to graduate teachers who work in classrooms equipped with multifunctional resources in regular schools to give specialized educational support for students with special educational needs marked by disabilities, global development disorders and high abilities/highly gifted students. In order to analyze dropout data in the first semester of the ongoing course, a sample of 1349 participants enrolled in the distance course was considered; 216 of these had their enrollment cancelled on request or because they stopped accessing the Virtual Learning Environment - VLE / Teleduc Platform showing no interest in the course. However, the information below aims to present and discuss only the tabulated data of the 98 participants who requested to have their enrollment officially cancelled by submitting the online dropout term. The findings showed the main reasons for dropping out were personal problems, lack of time to commit to an ongoing distance course, difficulty using ICT and the tools available in the VLE. The research also highlighted the importance of developing digital inclusion initiatives as well as on-site supporting poles as a way to soften the barriers of technological accessibility and the dropout rate in this kind of courses.

O trabalho do professor da educação profissional e tecnológica de Mato Grosso: dos textos prescritivos ao agir reconfigurado nos textos dos professores

Pós-graduação em Linguística e Língua Portuguesa - FCLAR

Empresas transnacionais na economia brasileira: uma análise do comércio intracorporação

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Gestão de portfólio de produtos em empresas de base tecnológica: um estudo multicasos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise estatística da vida em fadiga de compósitos estruturais pela distribuição de Weibull

Nowadays technological trend is based on finding materials that could support low weight with satisfactory mechanical properties and for this reason composite material became a very attractive topic in research projects all over the world. Due to its heterogenic properties, this type of material shows scatter in mechanical test results, especially in cyclic loading. Therefore it is important to predict its fatigue strength behaviour by statistic analysis, once fatigue causes approximately 90% of the failure in structural components. The present work aimed to investigate the fatigue behaviour of the Twill/Cycom 890 composite, which is carbon fiber reinforced with polymeric resin as matrix and manufactured via RTM process (Resin Transfer Molding). All samples were tested in different tensile level in triplicate in order to associate these values. The statistical analysis was conducted with Two-Parameter Weibull Distribution and then evaluated the fatigue life results for the composite. Weibull graphics were used to determine the scale and shape parameters. The S-N curve for the Twill/Cycom composite was drawn and indicated the number of cycles to occur the first damages in this material. The probability of failure was associated with material reliability, as shown in graphics for the different tensile levels and fatigue life. In addition, the laminate was evaluated by ultrasonic inspection showing a regular impregnation. The fractographic analysis conducted by SEM showed failure mechanisms for polymeric composites associated to cyclic loadings ... (Complete abstract click electronic access below)

Análise do consumo de energia elétrica e da eficiência energética em uma indústria de processamento de madeira

In the industries of wood processing (sawmills), where timber is sawn in equipment such as band saws, circular saws, trowel, thicknessers, among others, that mechanically transform this resource and use of electric motors, which are not unusually poorly scaled working or overloaded, often a factor that is not found in these industries and has fundamental importance in the production process is energy efficiency that is achieved by both technological innovation and through all the practices and policies that aim to lower energy consumption, lowering energy costs and increasing the amount of energy offered no change in generation. For both during the design of an electrical installation, both overall and in various sectors of the installation, investigations are necessary, considerations and uses of variables and factors that put into practice the theme of energy efficiency. Therefore, in this paper, these factors were calculated and analyzed for a wood processing industry (sawmill) in the municipality of Taquarivaí - SP, namely: active power, power factor, demand factor and load factor. Where they were small in relation to the literature, these events that occur when devices are connected at the same time and due to the conditions of processing the wood, where the engines have large variations in electricity consumption during the unfolding of the same, due to efforts with the load and idle moments between each machining operation in the equipment

Formação e profissionalização docente: análise do Programa Especial de Formação Pedagógica da UTFPR - Câmpus Medianeira

Pós-graduação em Educação - FFC

Análise econômica e de investimento da cultura do pinhão manso (Jatropha curcas L.)

Pós-graduação em Agronomia - FEIS

Análise de parâmetros de qualidade da água para consumo humano

The Current work to assess the capacity of water potability samples for that, we used seven different brands of mineral water, bought locally, and also collected seven samples of public drinking fountains located in different places on campus headquarters of the State University of Maringá. The parameters analyzed were presence of fecal and total coliform, turbidity, color and compounds with UV-absorption at 254 nm. On the analysis of coliforms, two brands of mineral water and four samples of drinkers showed presence of total coliform, but no analysis indicated the presence of fecal coliforms. In the turbidity parameter, all samples were within the limits allowed by law, for both cases. No apparent color attribute, two samples of mineral water and a sample of drinking were outside the range required by law. Finally, the determination of UV showed the values of light absorption of each sample at a wavelength of 254nm, however, does not yet exist in Brazil a regulation on this parameter. With such analysis, it was possible to compare the results with current legislation. After these findings, it appears that more stringent hygienic practices should be adopted throughout the processing of mineral water as drinking in public. It is also necessary for greater oversight over the other parameters for determining the quality of water.

Inovação, competição internacional e transição hegemônica: a política científico-tecnológica dos Estados Unidos para evitar o declínio no século XXI

Pós-graduação em Relações Internacionais (UNESP - UNICAMP - PUC-SP) - FFC

Nanotecnologia e nanociência em livros didáticos de física do nível médio: discursos sobre a tecnologia e a educação científica e tecnológica

In this contribution, we analyze conceptual approaches to nanotechnology and nanoscience in recent issues of secondary education of Brazilian physics textbooks. We analyzed fifteen collections of Physics textbooks of recent editions, however, only two books, belonging to different collections incorporate considerations about nanotechnology and nanoscience in their approaches. We focus our analysis on three aspects, namely: the place dedicated to approaches to nanoscience and nanotechnology, notions about technology and its contributions to critical scientific education. This is a qualitative research; it was used as conceptual approaches the Philosophy of Technology, The Discourse Analysis (DA) and Science, Technology, Society (STS) concepts. We found that in two examined textbooks the approaches to nanoscience and nanotechnology is a complementary description of modern physics, associated with quantum theory. In this context, the concepts of nanoscience and nanotechnology focus superficially in the genesis of the field and some possible areas of applications. It was not identified in all textbooks warnings about the potential risks to human health and the environment from the use of nanotechnology and nanoscience. We understand that textbooks approaches about nanotechnology and nanoscience round a instrumental technological perspective, however keep away from the scientific and technological critical education.

Desenvolvimento de dispositivos computacionais para registro de dados pluviométricos e análise operacional de pluviômetros basculantes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)