Federal University of São Carlos

About: Federal University of São Carlos is a education organization based out in São Carlos, Brazil. It is known for research contribution in the topics: Population & Microstructure. The organization has 16471 authors who have published 34057 publications receiving 456654 citations. The organization is also known as: UFSCar & Federal University of São Carlos.

Treinamento de habilidades sociais educativas para pais de crianças com problemas de comportamento

Abstract: Este artigo descreve um programa de Treinamento de Habilidades Sociais para pais de criancas com problemas de comportamento. O programa, com duracao de 11 semanas, apresentou, por meio de passos semanais sequenciados, principios da analise do comportamento para a pratica disciplinar nao-coerciva e modelos de habilidades sociais educativas para pais, com tarefas semanais de observar o comportamento do filho, estabelecer condicoes de aprendizagem e desempenho de comportamentos desejaveis (empatia, seguimento de instrucoes, independencia etc.), expressao afetiva entre outros. Participaram do programa 32 maes e dois pais, com avaliacoes pre e pos-intervencao por meio de questionarios de auto-relato e entrevistas. Os resultados mostraram reducao significativa na frequencia e severidade de comportamentos importunos e/ou indisciplinados, conforme avaliacao dos pais. Concluiu-se que o enfoque de habilidades sociais educativas para pais pode contribuir positivamente para o desenvolvimento de praticas disciplinares nao-coercivas junto a essa clientela.

Photophysical properties of Eu3+ and Tb3+-doped ZnAl2O4 phosphors obtained by combustion reaction

Abstract: Europium- and terbium-doped zinc aluminate oxide nanocrystals with a spinel structure were successfully prepared by a combustion method, using urea as fuel. The samples thus obtained were characterized by X-ray dif- fraction, scanning electron microscopy and luminescence spectroscopy. X-ray diffraction results confirmed the for- mation of ZnAl2O4 spinel phase and a minor amount of ZnO. Our SEM results revealed agglomerates in the shape of irregular plates composed of nanoparticles with dis- persed points of second phase in the surface. Powders containing Eu 3+ and Tb 3+ ions displayed red and green

Biogeographic distribution patterns and their correlates in the diverse frog fauna of the Atlantic Forest hotspot.

Abstract: Anurans are a highly diverse group in the Atlantic Forest hotspot (AF), yet distribution patterns and species richness gradients are not randomly distributed throughout the biome. Thus, we explore how anuran species are distributed in this complex and biodiverse hotspot, and hypothesize that this group can be distinguished by different cohesive regions. We used range maps of 497 species to obtain a presence/absence data grid, resolved to 50×50 km grain size, which was submitted to k-means clustering with v-fold cross-validation to determine the biogeographic regions. We also explored the extent to which current environmental variables, topography, and floristic structure of the AF are expected to identify the cluster patterns recognized by the k-means clustering. The biogeographic patterns found for amphibians are broadly congruent with ecoregions identified in the AF, but their edges, and sometimes the whole extent of some clusters, present much less resolved pattern compared to previous classification. We also identified that climate, topography, and vegetation structure of the AF explained a high percentage of variance of the cluster patterns identified, but the magnitude of the regression coefficients shifted regarding their importance in explaining the variance for each cluster. Specifically, we propose that the anuran fauna of the AF can be split into four biogeographic regions: a) less diverse and widely-ranged species that predominantly occur in the inland semideciduous forests; b) northern small-ranged species that presumably evolved within the Pleistocene forest refugia; c) highly diverse and small-ranged species from the southeastern Brazilian mountain chain and its adjacent semideciduous forest; and d) southern species from the Araucaria forest. Finally, the high congruence among the cluster patterns and previous eco-regions identified for the AF suggests that preserving the underlying habitat structure helps to preserve the historical and ecological signals that underlie the geographic distribution of AF anurans.