Quasi-Dirac neutrinos and solar neutrino data

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Bright solitons in a quasi-one-dimensional reduced model of a dipolar Bose-Einstein condensate with repulsive short-range interactions

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atividades de aventura e educação ambiental como foco nos periódicos da área de Educação Física

This qualitative study aimed at analyzing the articles that deal with different approaches and methodological strategies linking the themes of adventure activities and environmental education in journals of Physical Education area. An exploratory research was conducted in journals with A concept in 2011 WebQualis CAPES platform. The results show that this relationship is few explored in the area and the studies emphasize only some aspects, requiring therefore new approaches.

Lattice effects in the quasi-two-dimensional valence-bond-solid Mott insulator EtMe3P[Pd(dmit)(2)](2)

The organic charge-transfer salt EtMe3P[Pd(dmit)(2)](2) is a quasi-two-dimensional Mott insulator with localized spins S = 1/2 residing on a distorted triangular lattice. Here we report measurements of the uniaxial thermal expansion coefficients alpha(i) along the in-plane i = a and c axis as well as along the out-of-plane b axis for temperatures 1.4 K <= T <= 200 K. Particular attention is paid to the lattice effects around the phase transition at T-VBS = 25 K into a low-temperature valence-bond-solid phase and the paramagnetic regime above where effects of short-range antiferromagnetic correlations can be expected. The salient results of our study include (i) the observation of strongly anisotropic lattice distortions accompanying the formation of the valence-bond-solid phase, and (ii) a distinct anomaly in the thermal expansion coefficients in the paramagnetic regime around 40 K. Our results demonstrate that upon cooling through T-VBS the in-plane c axis, along which the valence bonds form, contracts while the second in-plane a axis elongates by the same relative amount. Surprisingly, the dominant effect is observed for the out-of-plane b axis which shrinks significantly upon cooling through T-VBS. The pronounced anomaly in alpha(i) around 40 K is attributed to short-range magnetic correlations. It is argued that the position of this maximum, relative to that in the magnetic susceptibility around 70 K, speaks in favor of a more anisotropic triangular-lattice scenario for this compound than previously thought.

An alternative approach for quasi-truth

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Identificação de metabólitos secundários em extrato aquoso de phyllanthus niruri l.com ação no processo de formação de cristais de oxalato de cálcio

Pós-graduação em Ciências Farmacêuticas - FCFAR

Propriedades estruturais e eletrônicas de nanofilmes de TiO2 anatase: cálculos B3LYP-D* em sistemas periódicos bidimensionais

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Critérios de qualidade em artigos e periódicos científicos: da mídia impressa à eletrônica

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Uso dos periódicos do Portal CAPES pelos Programas de Pós-graduação da Faculdade de Odontologia de Araraquara - UNESP - no período de 2000 a 2005

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A formação do conceito de ontologia na ciência da informação: uma análise nos periódicos Scire e Ibersid

The concept of ontoloy as a tool for knowledge organization and representation, which is not yet stable, is analyzed in two spanish journals of information science, namely “Scire: representación y organización del conocimiento” and “Ibersid: revista de sistemas de información y documentación”, both published by the University of Zaragoza. The term "ontology" and its variations were searched in the fields of title, keywords and abstract. A corpus of eighteen articles was obtained. The approaches to ontologies were classified into four categories of analysis: conceptualization, comparison, application and new applications. It was observed that the way which the concept of ontologies is treated in both periodicals is in consonance with their editorial policies. The term ontology is suffering a process of meta-terminologization, from the field of philosophy towards information science, a fact that deserves further and more vertical studies.

Ocorrência de artigos em periódicos científicos a respeito da formação continuada de professores de educação infantil para a atuação com crianças com deficiência

The professional development of teachers to work with children with disabilities is a recurring theme in the literature, as it is one of the keys to effective educational inclusion. However, studies carried out so far have mainly focused on training elementary school teachers. Given this context, this study sought to investigate: the occurrence of articles whose main objective is professional development for teachers of early childhood education to work with children with disabilities; and the methodology used in the professional development programs assessed by those papers. Articles published from 1990 to 2012, in the following journals, were analyzed: Educação e Pesquisa (USP), Revista Psicologia Escolar e Educacional, Pro-Posições (Unicamp), Revista Brasileira de Educação Especial e Revista Educação Especial (UFSM). After selecting the journals, the titles of all articles published within the period considered were read. Articles deemed relevant articles were read in full, and analyzed, according to the purposes of this research. The results indicated that within the period considered, and based on the journals chosen for investigation, there were no specific articles on the subject directly, although there have been articles that touch on the issue. This literature review emphasizes the importance of expanding research on the subject, in order to widen knowledge in the area, especially knowledge aimed at contributing to early childhood education and the professional development of its teachers.

Produção científica de bolsistas pesquisa em Ciência da Informação do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) - um estudo com artigos de periódicos

Information Science (IS) research has strongly grown in Brazil, in the last decade, and, as a consequence, it was possible to observe a growth of the support given by the Brazilian National Scientific and Technological Development Council - CNPq. In this sense, this paper aims to analyze the scientific production (journal papers) of the 15 IS researchers who have the highest level research fellowships during the period between 2001 and 2010. Data were analyzed in terms of bibliographic dispersion, internationalization, and scientific collaboration as well as in terms of the most prominent journals. The results (219 papers) evidence an average of around 1.5 papers per author per year and a group of 63 different journals (60% evaluated under levels Qualis A1 and B1). The journal DataGramaZero is strongly present since it responds for 22% of the whole production. It was possible to observe a still shy presence of foreign journals and none of them belong to the Anglo-Saxon environment. The kind of authorship is well-balanced between individual and collective ones, including inter-institutional collaboration. It is possible to conclude that this group is mature and very productive, and it represents an academical IS leadership in Brazil but still lacks more international visibility.

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.

Quasi-exactly-solvable confining solutions for spin-1 and spin-0 bosons in (1+1)-dimensions with a scalar linear potential

We point out a misleading treatment in the recent literature regarding confining solutions for a scalar potential in the context of the Duffin-Kemmer-Petiau theory. We further present the proper bound-state solutions in terms of the generalized Laguerre polynomials and show that the eigenvalues and eigenfunctions depend on the solutions of algebraic equations involving the potential parameter and the quantum number. (C) 2014 Elsevier Inc. All rights reserved.