Investigação da colaboração científica na temática de indexação em periódicos on-line em âmbito nacional

This research seeks to demonstrate the scientific collaboration in the field of Information Science, specifically in the thematic indexing, by analyzing the co-authors network, based on scientific collaboration in Brazilian journals online, according to CAPES. We selected six Brazilian journals online, namely: Ciência da Informação; Transinformação; Perspectivas da Ciência da Informação; Encontros BIBLI: Revista Eletrônica de Biblioteconomia e Ciência da Informação; DataGramaZero and Em Questão, totaling 25 articles. It was built in coauthorship network, using Pajek software in order to evaluate interactions between researchers and cohesion of the network by calculating its density.

Epistemologia das Neurociências: a investigação empírica

The possibility of experimental approach of mental phenomena continues to be discussed nowadays by philosophers, psychologists and neuroscientists. According to the concept that mental phenomena are resulting from brain activity, therefore organic phenomena, the objective of this essay is to show that empirical study of mental phenomena, especially consciousness, is not only possible, but desirable, despite the limitations found in Neuroscience field.

Controvérsias sobre a democracia participativa protagónica

Este artigo apresenta duas interpretações distintas da Revolução Bolivariana: uma crítica e outra favorável, à luz do que nele se considera o denominador comum dos conceitos liberais de democracia e, ao final, procura apontar os limites da crítica e alguns desafios a serem enfrentados pelos que a apoiam.

Uma investigação do minos e sua aplicação ao problema de fluxo de potência ótimo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Investigação da condução elétrica em fitas duplas de dna imobilizadas em eletrodos de ouro por medidas eletroquímicas

Pós-graduação em Química - IQ

Os desafios e as possibilidades de ensinar ciências nos anos iniciais do ensino fundamental: uma investigação com professores

Pós-graduação em Educação para a Ciência - FC

Investigação química e biológica dos metabólitos secundários derivados de macroalgas marinhas e microrganismos associados

Pós-graduação em Química - IQ

Investigação das atividades alelopática, fitotóxica e antioxidante de extratos e frações de Tridax procumbens L. (Asteraceae). e Ouratea spectabilis (mart. ex engl.) engl. (Ochnaceae)

Pós-graduação em Biociências - FCLAS

Investigação experimental da tenacidade em tubos de aço API 5L X70 soldados pelo processo HF/ERW

Studies about structural integrity are very important when it desires to prevent disasters associated with flaws inherent in materials used in structural components. The welded joints in steel pipes used to conduction and distribution of oil and gas correspond to the regions most susceptible to flaw. Aiming to contribute to this research line, the present study was designed to assess experimentally the structural integrity of welded joints in steel pipes API 5L X70 used in pipeline systems. This assessment is given from tests of CTOD, whose aim is simulate in laboratory the real behaviour of crack from of his propagation on the welded joint obtained by high frequency electric resistance welding. In this case, the analyses are performed from specimens SE(B) obtained directly of steel pipe API 5L X70. The proposed methodology involves tests of CTOD at lower temperature, in order to assess the toughness of material in critical operation conditions. From performance of CTOD tests, was possible assess the toughness of welded joints in terms of quantity through CTOD parameter and in terms of quality from behaviour of curve load versus CMOD. In this study, also, sought to compare CTOD’s results obtained through rules ASTM E1820 (2008) and BS 7448 (1991). Although the two standards cited previously have adopted different parameters to calculated the value of CTOD, concluded that the values of CTOD tend to converge for a common value

Educação financeira: uma possibilidade de ensino a partir dos cenários para investigação

This work presents a proposal for teaching financial mathematics to students from secondary school using mathematics investigation. This methodology is used for many researchers and this work follows the main ideas of Fonseca, Brunheira, and Ponte (1999) and Skovsmose (2000). With this methodology, we intend to develop activities that approximate real situations of daily life and we aim to help students to understand and make decisions about single commercial and finances negotiations. Such activities have open questions that provide students the opportunity to think about mathematical subjects like loans, financing and saving account. We show a short description of studies about the importance of financial education in secondary school and university. Our proposal is applied in Secondary School because we considering to use contents of this area in a very simple way, dealing with mathematical ideas in order to develop skills of critical analysis. We suggest a qualitative research with phenomenological approach, as a possibility analysis of collected data from this teaching proposal

Contaminação na cidade de Caçapava, SP: exposição ao risco e investigação confirmatória

A Geografia da Saúde é um eixo temático dentro da ciência geográfica preocupada com as questões pertinentes à saúde ambiental e a saúde do coletivo. As contribuições dos geógrafos para o estudo da Saúde tem sido de grande valia, indo para além da análise espacial das práticas em saúde como também investigando e analisando os fatores determinantes ao risco a saúde e, inversamente, ao bem estar-estar do social e ambiental. Dentro deste contexto, esta monografia se propõe a uma investigação confirmatória a cerca de uma contaminação ao meio ambiente por metais pesados, neste caso, a contaminação por chumbo por uma extinta fábrica de lingotes de chumbo situada no município de Caçapava, SP. O chumbo é um metal que não possui função fisiológica conhecida ao corpo humano. Devido a características físicas e químicas favoráveis, esse metal foi largamente explorado pelo setor industrial e hoje, no mundo todo, temos exemplos de casos de contaminação tanto da população e do ambientel, por ser altamente tóxico. Caçapava possui mais um infeliz exemplo de contaminação ambiental por metais pesados, decorrente de uma fábrica que produzia o chumbo secundário e que atualmente está fechada por ordem judicial, abandonada e com toneladas de escória de chumbo armazenada de modo irregular, fato que está colaborando para uma contaminação residual naquele ambiente... (Resumo completo, clicar acesso eletrônico abaixo)

Investigação da participação de adrenoceptores α1 no efeito antinociceptivo da amitriptilina em um modelo de dor neuropática

Tricyclic antidepressants, such as amitriptyline, are inhibitors of serotonin and norepinephrine neuronal reuptake and this action has been implied in changes in pain threshold supporting its use to alleviate neuropathic pain. Although is known that 1 adrenoceptors participate in the antinociceptive effect of amitriptyline it is unclear which receptor subtype is the target for the increased synaptic levels of norepinephrine resultant from the inhibition of neuronal uptake. Paradoxically, several tricyclic antidepressants including amitriptyline also behave as antagonists of 1 adrenoceptors with different affinities for its subtypes: these drugs have 10 to 100-fold higher affinities for 1A than for 1B and 1D adrenoceptors. This work investigated the involvement of 1 adrenoceptors subtypes in the antinociceptive effect of the amitriptyline in a constriction of the sciatic nerve in rats by determining the effects of subtype selective 1 adrenoceptors antagonists. Fifteen days later, mechanical hyperalgesia was analyzed in a Randall-Selitto test. The 1A-selective antagonist RS100329 was the most potent antagonist of the contractions of the rat prostate, whereas the 1D-selective antagonist BMY 7378 (up to 100g/Kg) was unable to affect these contractions. The antagonist prazosin, BMY 7378 and 5-methyl urapidil inhibited the antinociceptive effect of the amitriptyline. However, the highly selective 1A adrenoceptor antagonist RS100329 was unable to affect the antinociception induced by amitriptyline. These results point out that 1B and/or 1D adrenoceptors, but not 1A, are involved in the antinociceptive effects of amitriptyline

Investigação orientada e formação inicial de professores de química: um estudo com base em uma proposta de elaboração de mini-cursos temáticos

The educational institutions need to rethink issues related to teacher training in order to seek personal construction of teaching. Oriented research has been identified as useful in the process of teacher training. Through research builds knowledge about the problems faced in teaching, producing the most effective methods. The aim of this paper is to verify the validity of the application of research activities in the form of short courses and themed play during the formation of licensees and the use and construction of knowledge of high school students who attended these short courses. This work is linked to training of undergraduates and implementation of different activities of teaching and learning for high school students. The oriented investigation was the methodology chosen for the development of activities in which, through the construction and implementation of the mini-courses Students are encouraged to participate in the construction of knowledge itself in activities that suggest the development and testing of hypotheses. The mini-courses are designed and implemented by teachers of the ninth and tenth terms of the degree in chemistry. Students of public schools were the privileged. Data were collected through observation and interview. In applying these mini-courses, associated with the daily, prospective teachers connected theory to practice, arousing the curiosity of students and leading them to raise issues related to the content of chemistry. Students showed interest in the construction of the content addressed. The student teachers sought to study different concepts and how to make them more attractive, causing the chemistry was associated with the phenomena of everyday life, including the problems faced when teaching and trying different possible solutions. Thus, there was an increase in interest in teaching and learning

Investigação da fase de carga ordenada em sistemas orgânicos quase-unidimensionais

In the eld of synthetical materials, often called in the literature as organic/molecular conductors or charge-transfer salts, the most prominient examples are the quasi onedimensional systems (TMTTF)2X and (TMTSF)2X, where TMTTF, TMTSF and X refers to tetrametiltetratiafuvaline, tetrametiltetraselenafuvaline and a monovalent anion (X = PF6

Investigação do tratamento de água de máquina de lavar roupa empregando reator biológico, em escala piloto, visando redução da concentração de fósforo para reúso não potável

This research aims at the study of treatment of clothes washing water through biological treatment, for the purpose of evaluating the reduction of phosphorus to make it suitable for a posterior treatment of physical-chemical. For this purpose it was employed a sequencing batch reactor, consisting of aerobic and anaerobic phases. During the project it was verified not only the reduction of phosphorus (removal of 30 to 50%) but also the reduction of BOD, COD, Turbidity and Nitrate (removal of 38 to 36%, 34 to 41%, 72,3 to 75% and 57,8 to 60% respectively), which demonstrates that the proposed treatment can assist advanced treatments of water for its non potable reuse