797 resultados para Ratonero moro


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This work aimed to study the effect of the temperature on the seed germination and to describe the morphology and germination process of disseminules (seeds with stucked endocarp) of R. borinquena species. The fruits were harvested and had their pulp (exocarp and mesocarp) removed and the disseminules were shade dried. The experimental design was entirely randomized and six treatments were performed (temperature conditions: constant at 25, 30 and 35 degrees C; alternated at 25-35 and 20-30 degrees C; and room temperature) with four replications with 25 disseminules per plot, placed in plastic boxes (gerbox) containing vermiculite. The germination rate and germination speed index were calculated, and the data were submitted to the variance analysis, and the means compared by the Tukey test. For the morphological studies, the external and internal sides of the disseminules, the embryo and the representative germination stages were sketched. The samples were fixed in FAA (formalin - acetic acid - ethyl alcohol). It was concluded that the highest germination rate and faster germination were at the constant temperature of 35 degrees C and alternated of 25-35 degrees C. The seeds are albuminous, with a hard endosperm that takes almost the entire interior of the disseminules; the embryo is lateral, peripheral and poorly differentiated; the germination is adjacent.

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

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

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

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The lowest grain yield of rice under no-tillage system (NTS) in relation to the conventional system may be due to the predominance nitrate in the soil and the low nitrate reductase activity. Another reason may be caused by micronutrient deficiency because of superficially soil acidity corrections. Therefore, the objective of this study was to evaluate the changes caused by soil pH in the N forms in the soil, micronutrients concentration in rice plants, nitrate reductase activity, yield of rice and its components. The experiment was performed in a greenhouse conditions. The experimental design was a completely randomized in a factorial three (levels of soil acidity) x five (micronutrients sources) with four replications. The addition of micronutrients does not affect levels of nitrate and ammonium in the soil; soil acidity significantly affects levels of nitrate and ammonium in the soil, concentration of micronutrients in rice plants and crop yield and its components; medium soil acidity (pH 5.5) result in medium to high levels of Cu and Fe, medium level of Zn and Mn, high nitrate reductase activity, resulting in higher dry matter, tillers, panicles, spikelets, weight of 100 grains and hence grain yield.

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Will be demonstrated here, the importance of preparing the Political-Pedagogical Project - PPP in a way that the school´s actors participate constantly. his participation is essential to promote both their production and the ongoing evaluation of activities, actions and educational purposes. Following the guidance of experienced researchers in this matter, we assume the defense of a school that favors the character of belonging for everyone: administrators, teachers, students and parents, the whole community. his study is conducted in two stages: a theoretical study, highlighting the main researches and thoughts at academic level, a documentary analysis of four schools and interviews with directors or vice directors and coordinators of schools. With this study and analysis, it is possible to realize the importance of their development and promote relection to guide those interested to a new vision or revision of structures already plastered. he school thus may undergo changes renovating their routine, making it fresh news and events, allowing the daily challenges foster contextualized strategies on concrete basis.

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Will be demonstrated here, the importance of preparing the Political-Pedagogical Project - PPP in a way that the school´s actors participate constantly. his participation is essential to promote both their production and the ongoing evaluation of activities, actions and educational purposes. Following the guidance of experienced researchers in this matter, we assume the defense of a school that favors the character of belonging for everyone: administrators, teachers, students and parents, the whole community. his study is conducted in two stages: a theoretical study, highlighting the main researches and thoughts at academic level, a documentary analysis of four schools and interviews with directors or vice directors and coordinators of schools. With this study and analysis, it is possible to realize the importance of their development and promote relection to guide those interested to a new vision or revision of structures already plastered. he school thus may undergo changes renovating their routine, making it fresh news and events, allowing the daily challenges foster contextualized strategies on concrete basis.

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This search is part of a larger study conducted at the Carlos Chagas Foundation (SP-Brazil), which aims to build a scale to assess adhesion to moral values by basic education students and their teachers. This text addresses only the value of justice. The responses of 111 10-13 year old children and 121 teenagers between 14 and 17 years of age at public and private schools in the city of São Paulo (SP-Brazil) were compared. Among the various topics addressed, some issues of distributive, retributive and commutative justice were selected. In the questionnaire, the alternatives offered were built in increasing stages of decentration from a social perspective inspired by Kohlberg. The results confirmed the two hypotheses that had been raised: there was a progression in the choice of the answers concerning the stages between children and teenagers and there were differences between the three forms of justice considered, in relation to the achievement of higher levels.

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Este texto é fruto de um projeto de extensão que promove a reflexão entre professores da Universidade Estadual Paulista e diretores e supervisores da Delegacia de Ensino da Região de Marília/SP. O MEC vem defendendo a adoção do PDE nas escolas públicas que não atingiram as metas definidas pelo IDEB. Nosso objetivo é analisar as propostas do PDE, identificando suas origens, suas características e a concepção de gestão que o embasam. Do mesmo modo, confrontar com o PPP das escolas, analisando suas implicações e consequências para a gestão. A Metodologia adota as pesquisas: bibliográfica, documental (PDE e PPP) e a pesquisa ação com o grupo de estudos em que participam diretores e supervisores da rede estadual e docentes e discentes da UNESP. Como resultados, identificamos que a concepção de gestão, consubstanciada no PDE, caminha em sentido oposto ao da concepção do PPP, especialmente no que se refere à gestão democrática.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The objective of this study is verify the occurrence of bullying in soccer and if this phenomenon can be considered a possible cause of the abandonment of this sport. The sample consisted of 143 male athletes, aged between 15 and 18 years old, all of whom competed in the Copa São Paulo de Futebol Júnior in 2011. The results show that most athletes have practiced, suffered and observed bullying in soccer, but the minority has fear of being assaulted on the team and few thought to stop playing because of this social phenomenon. It is suggested that more studies be conducted in this area and that the sport psychologist and coach provide to the team a better living and training structure, and the athletes should be united, avoid jokes that exceeding the limits offending another member of the group and make everyone feel comfortable in that place, not influencing the individual or collective performance

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

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Pressure drop and energy efficiency of compressors in chemical plants are the focus of this study. Its objective is an analysis of possible sources of energy loss through the study of pressure loss in pipes, calculation of thermodynamic efficiency of the compressors. Important issues are raised for this analysis such as the types of compressors, the operating range of each compressor, compression types, as well as a study of accessories such as filters and valves. After studying these issues was carried out calculations of pressure drop step-bystep and with a software WIPCD. Followed by the calculation of efficiency of compressors and monthly energy cost of each compressor in operation. Finally, the study shows some suggestions for immediate improvements, changes and suggestions for possible future purchases of compressors