Universidade Positivo

About: Universidade Positivo is a education organization based out in Curitiba, Brazil. It is known for research contribution in the topics: Population & Biodiversity. The organization has 1290 authors who have published 1237 publications receiving 9335 citations. The organization is also known as: Positive University.

Dinâmica de relacionamento e prováveis respostas estratégicas de programas brasileiros de pós-graduação em administração à avaliação da Capes: proposições institucionais a partir da análise de redes de co-autorias

Abstract: The aim of this study is to describe and analyze the changes that have taken place in the structural configuration of the co-authorship networks among professors linked to national programs of post graduate (stricto sensu) in Administration and to formulate propositions, based on the institutional theory, regarding the probable strategic answers of such programs to the CAPES evaluation. A longitudinal cutting was adopted encompassing a six-year period, subdivided into two triennials: 2001-2003 and 2004-2006. The researched population includes 32 post-graduate programs that were evaluated by the Capes in 2001, as well as their 703 identified researchers. The data were collected based on the Lattes curriculum of professors who were active in those programs and were analyzed through routines made available by the the Ucinet 6.0 and Pajek 1.10 softwares. The results show an increase in co-operation through co-authorship from one triennial to the other, which would appear to indicate increased consent of the programs in relation to the requirements of the evaluating agency. These interactions may both reject or heighten coercive and normative institutional pressures on the part of the CAPES concerning the definition of the norms that serve as guidelines for the three-yearly evaluation of stricto sensu post-graduate programs in Brazil.

Characterization of native and oxidized starches of two varieties of Peruvian carrot (Arracacia xanthorrhiza, B.) from two production areas of Paraná state, Brazil

Abstract: Two commercial varieties of Peruvian carrot ('Amarela de Carandai' and 'Senador Amaral') were processed into flour, starch and bagasse and chemically evaluated. The starch was extracted, modified with H2O2 and characterized by the physicochemical methods. By using the methylene blue dyeing, the granules of the modified starches showed intense blue color. The carboxyl content, the reducing power and the amount of the water liberated from the pastes after the freeze-thawing were higher for the oxidized starches and their pastes were clearer than those of the native starches of the two varieties from the two production areas. The RVA viscoamylography showed that the modified starches had lower viscosities with differences between the varieties. In the thermal analysis, the temperatures of the pyrolysis were higher for the native (310.37, 299.08, 311.18 oC) than for the modified starches (294.16, 296.65 e 293.29 oC) for both the varieties. This difference could be related with the larger surface of the granules due to the partial degradation promoted by the chemical modification. In almost all results, the differences were evident between the varieties but not for the cultivation places.

Molar incisor hypomineralization (MIH): conservative treatment management to restore affected teeth

Abstract: The purpose of this study was to evaluate the 12-month clinical performance of glass ionomer restorations in teeth with MIH. First permanent molars affected by MIH (48) were restored with glass ionomer cement (GIC) and evaluated at baseline, at 6 and at 12 months, by assessing tooth enamel breakdown, GIC breakdown and caries lesion associations. The data were analyzed using the chi-square test and actuarial survival analysis. The likelihood of a restored tooth remaining unchanged at the end of 12 months was 78%. No statistically significant difference was observed in the association between increased MIH severity and caries at baseline (p > 0.05) for a 6-month period, or between increased MIH severity and previous unsatisfactory treatment at baseline (p > 0.05) for both a 6- and 12-month period. A statistically significant difference was observed in the association between increased MIH severity and extension of the restoration, involving 2 or more surfaces (p < 0.05) at both periods, and between increased MIH severity and caries at baseline (p < 0.05) at a 12-month period. Because the likelihood of maintaining the tooth structures with GIC restorations is high, invasive treatment should be postponed until the child is sufficiently mature to cooperate with the treatment, mainly of teeth affected on just one face.

A percepção ambiental como instrumento de apoio na gestão e na formulação de políticas públicas ambientais

Abstract: Este artigo insere-se nos estudos de politicas publicas e gestao ambiental municipal. Tem por objetivo discutir como o uso da percepcao ambiental pode ser relevante para a gestao ambiental municipal. O caso de estudo escolhido para guiar esta discussao foi o Distrito de Paranapiacaba e Parque Andreense, Municipio de Santo Andre-SP. A metodologia utilizada envolveu aplicacao de questionario quali-quantitativo junto a populacao local, buscando coletar a percepcao acerca do meio ambiente e de instrumentos da gestao ambiental local. Os resultados indicaram que o uso da percepcao da comunidade pode atuar como uma ferramenta de apoio a gestao do meio ambiente, e subsidiar um processo participativo para uma gestao compartilhada entre poder publico e sociedade.