ResumoEste trabalho teve como objetivo o desenvolvimento de um estudo correlacional entre habilidades sociais e traços de personalidade segundo o modelo dos cinco grandes fatores. Foram sujeitos da pesquisa 189 estudantes universitários, de ambos os sexos (41 homens e 148 mulheres), de 18 a 59 anos (média 26,3 anos), primeiro-anistas dos cursos de Letras, História, Psicologia, Pedagogia e Biologia. Foram aplicados o Inventário de Habilidades Sociais, que informa sobre (a) enfrentamento com risco, (b) auto-afirmação na expressão de afeto positivo, (c) conversação e desenvoltura social, (d) autoexposição a desconhecidos e a situações novas e (e) auto-controle da agressividade a situações aversivas; e um Inventário de Personalidade que informa sobre os cinco grandes fatores: extroversão, socialização, escrupulosidade, neuroticismo e abertura para novas experiências. Encontrou-se que a variância de enfrentamento com risco pode ser explicada principalmente por extroversão e abertura para novas experiências; auto-afirmação na expressão de afetos positivos, por socialização e equilíbrio emocional; conversação e desenvoltura social, pelo conjunto equilibrado de todas os cinco grandes fatores, exceto escrupulosidade; auto-exposição a desconhecidos e a situações novas, por extroversão e equilíbrio emocional; e auto-controle da agressividade por socialização. Palavras-chave: Social skills; personality traits; Modelo dos cinco grandes fatores. A correlational study of social skills to personality traits AbstractThe purpose of this study was to investigate de correlation of social skills to personality traits by the big five factors model. The Ss were 189 undergraduates, 41 men and 148 women, from 18 to 59 ys. old (mean 26,3 ys. old), freshmen of the Literature, History, Psychology, Pedagogy, and Biology courses. The instruments were the Social Skills Inventory, which informs about (a) confront with risk, (b) self-affirmation on the positive affect expression, (c) conversation and social easiness, (d) self-exposure to strangers and new situations, and (e) self-control of aggressiveness in aversive situations; and an Personality Inventory which informs about the big five factors: extraversion, agreeableness, conscientiousness, neuroticism and openness. The confront with risk variance was explained by the extraversion and openness; self-affirmation on the positive affect expression, by agreeableness and emotional balance; conversation and social nimbleness, by the equality in all personality factors; self-exposure to strangers and new situations, by extraversion and emotional balance, and self-control of aggressiveness in aversive situations, by agreeableness. Keywords: Habilidades social; traços de personalidade; Big Five Factors model. IntroduçãoAs habilidades sociais se constituíram como uma área dentro da Psicologia, na década de 60, na Inglaterra, tomando por base estudos relacionados à Psicologia Social e do Trabalho (Argyle & Kendon, 1967) que disseminaram o termo habilidades sociais. Contudo, as décadas de 60 e 70 são ...

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In the present work we have carried out production and characterization of a new complex cubic perovskite ceramic Ca2MgWO6 to evaluate its application viability as inert material for petroleum industry. Ca2MgWO6 was produced by thermo-mechanical processing and calcinations at 1.200°C, using stoichiometric amounts of constituent chemicals CaCO3, MgO and WO3. The calcined material was examined by x-ray diffraction, which identified the phase formation Ca2MgWO6. Calcined material was powdered in a ball mill, compacted as circular discs and subjected to sintering at temperatures of 1.250, 1.300 and 1.350°C. The powders, both those employed in the calcined pellets as those produced by the mill, were characterized by size distribution. The sintered discs were characterized by SEM. The results showed that the ceramics sintered at 1.250°C presented better results in terms of microstructural features and mechanical properties for their possible application as inert material for petroleum industry.

The main objectives of this work were the production of Ca2MgWO6ceramic by sintering and the investigation of its reactivity to crude petroleum. A synthesis was prepared with stoichiometric amounts of CaO, MgO and WO3. The reagents were characterized according to chemical composition. The synthesis was characterized by size distribution and thermal analysis. A green compact of the synthesis was calcined at 1200 °C and analyzed by XRD. The result showed that the calcined material consists predominantly of a complex perovskite-type Ca2MgWO6ceramic. The calcined material was fragmented in a ball mill and used to prepare three green compacted to be sintered at temperatures of 1250, 1300 and 1350 °C. The sintered material was evaluated by linear shrinkage, microhardness, SEM, microanalysis by dispersive energy and stability tests in crude petroleum. The results showed that it is possible to produce a material with 74.5 % of Ca2MgWO6and that is inert to crude petroleum.

Carbon nanotubes (CNTs) exhibit excellent electrical and thermal properties that have been used in several device assemblies, such as electrode sheets made from an aggregate of CNTs, also called as buckypaper (BP). Despite that, the properties of single CNTs are reduced when randomly assembled to form a BP. In this way, this study investigated the thermoelectric effect of a BP electrode assembled on a copper electrode with an active area of 4.0 cm2. The micrographs were obtained by scanning electron microscopy and show morphology agglomerated of multiwalled CNTs, which permeated into the filter paper, forming a thickness of 67.33 μm. Moreover, indoor/outdoor tests were performed approaching the BP electrode from a heat source. Thus, the electrical responses in function of temperature variation show maximum thermovoltages of 9.0 mV and 40.73 mV from indoor and outdoor tests, respectively. Finally, an average Seebeck coefficient for the BP/copper electrodes array of 35.34 ± 6.0 mV/K was estimated from 298 to 304 K. These findings suggest that this assembly will be easily applied in thermoelectric device concepts.