Incorporação de novas tecnologias no setor sucroalcooleiro: produção de hidrogênio e aumento da oferta de eletricidade

This work studies the incorporation of new technologies in the sugarcane sector. Are considered the ethanol steam reforming and the gasification of sugarcane bagasse(by-product) processes associated with combined cycle systems (Gas Turbine + Steam Turbine), aggregating hydrogen production and increased electricity supply in the sector, respectively. To verify the technical feasibility of the incorporation processes was performed a thermodynamic analysis, considering data from a typical Brazilian Sugar Cane Industry. In another step the economic viability study of the hydrogen production process was made, with consideration on hydrated and anhydrous ethanol steam reform, comparing the cost of hydrogen production. Also considered studies of economic engineering of the gasification process and the generation of electricity associated. As conclusions, it follows that the ethanol steam reforming is a great alternative for hydrogen production, presenting production cost relatively low, especially when is considered the steam reforming of hydrated ethanol. For the gasification process associated with combined cycle, can be observed an increase of 8.56 times of the electricity production in the sugar cane industry, indicating a positive annual saving when the sales price of the supply electricity is greater than 0.070 US$/kWh. Finally it can be concluded that the incorporation of these new processes allow greater profitability and operational flexibility of Brazilian sugarcane mills

Physical and chemical matrix effects in soil carbon quantification using laser-induced breakdown spectroscopy

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

La formación de personalidades éticas: representaciones de sí y moral

The article presents the studies of a current investigation among 75 adolescents from 12 to 15 years old, students of private schools of Campinas city, that have as main objective to notice a possible correspondence among the moral judgements and the representation that individuals have about themselves. From the feeling of admiration the studies bring out the representations of these individuals and answer a questioning if they would have an ethics character or not and if these would correspond to their moral judgements. The results point out to a correspondence among those whose representations of themselves are characterized by more evolved ethics contents and judgements as for sensitivity to the feelings of the characters involved in the situations described. Such studies validate the intention of this article to discuss the correspondences between ethics (how the individual sees himself/herself) and moral (how he/she judges the moral of the situations).

A qualidade da interação entre pares e a implantação de um ambiente sociomoral a partir da literatura infantil

The present research, of a qualitative nature, aimed to check possible changes in the relations between pairs after the implantation of a work with children’s literature. The work was part of a teacher training project whose proposal is the deployment of a cooperative sociomoral environment in the classroom. The sample was composed of 250 students (boys and girls) 7-10 years, students of elementary school I in municipal education networks in São Paulo State. The method used was the application of a questionnaire in two stages: the pre-test, prior to the implementation of the project, and the post-test, carried out with the children after the end of the work. By means the questionnaire, that contained questions on three main themes – friendships at school, the systematic group work and the feelings expressed with respect to the school –, the children were asked about the quality of the relations between pairs. The data obtained have gone through a quantitative and qualitative analysis, being statistically proven. Eventually, the results of the two stages of the questionnaire were compared, indicating a better quality in interpersonal relations experienced in school after the implementation of the work with children’s literature.

Bullying: dimensões psicológicas no desenvolvimento moral

Understanding and assessing the extent of psychological mechanisms that operate in actions of specific violence acts such as bullying can contribute to the discussion of educational interventions that promote moral education as desired by educational institutions. The current research aimed toD correlateD this form of violence called bullying to representations of the self and even to the ways in which the subjects self-regulate themselves in hypothetical situations which pose the problem, thus identifying their moral commitments or non-commitments. The procedures followed to check the presence of these correlationsDindicate that subjects whose self-representations are individualistic are less morally committed and more likely to be perpetrators in bullying situations. This shows that more than a social problem, the issues of coexistence should be treated from a moral perspective.

Um estudo sobre as relações entre os conflitos interpessoais e o bullying entre escolares

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

Human follicle stimulating hormone (hFSH) and thyroxine (T4) in survival maintenance and in vitro growth promotion of caprine preantral follicles

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modelo de poços quânticos para a transferência de elétrons

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Genomic signatures of evolutionary transitions from solitary to group living

The evolution of eusociality is one of the major transitions in evolution, but the underlying genomic changes are unknown. We compared the genomes of 10 bee species that vary in social complexity, representing multiple independent transitions in social evolution, and report three major findings. First, many important genes show evidence of neutral evolution as a consequence of relaxed selection with increasing social complexity. Second, there is no single road map to eusociality; independent evolutionary transitions in sociality have independent genetic underpinnings. Third, though clearly independent in detail, these transitions do have similar general features, including an increase in constrained protein evolution accompanied by increases in the potential for gene regulation and decreases in diversity and abundance of transposable elements. Eusociality may arise through different mechanisms each time, but would likely always involve an increase in the complexity of gene networks.