102 resultados para 616.079


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Intercropping could efficiently prevent soil nutrient losses caused by extensive agriculture. The present study aimed to assess the effect of green manure on the nutritional status of orange trees cultivar 'Pera' (Citrus sinensis (L.) Osbeck). The plants were grafted on 'Cravo' lime trees and were then planted in a 7x4m space. Four different treatments corresponding to the evaluated green manures were employed: jack bean (JB) (Canavalia ensiformis DC), lablab (LL) (Dolichos lablab L.), pigeon pea (PP) (Cajanus cajan L. Millsp), and Brachiaria (BQ) (Brachiaria brizantha Hochst ex A. Rich. Stapf) as control. The experimental design was in randomized blocks, in split-plot time, with six replicates, with four treatments (green manures) and two plants per evaluation. The nutritional status was assessed by using the DRIS method (Diagnosis and Recommendation Integrated System); the yield and the macro and micronutrient levels contained in green manures and in the control was also determined. The nutritional diagnosis indicated that, in the two years of experiment, plants treated with green manure showed better nutritional balance index compared to Brachiaria. This suggests that, over time, green manure can lead to better nutritional balance. Pigeon pea treatment showed the highest yields, compared to control, in the two evaluated crop cycles (2004/05 and 2005/06).

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Pós-graduação em Engenharia Mecânica - FEG

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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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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The growing population, purchasing power and changing the profile of Brazilian consumers are the facts to justify the increase in waste production in the country. According to the National Research Sanitation made by IBGE in 2000, Brazil produced 241,614 tons of waste per day, equivalent to approximately 90 million tons per year. This growth leads researchers to consider a better way to dump this material in order to mitigate the damage to population health and the environment. For this, one of the possible actions is the search for alternative disposal technological development, a possible solution being the construction of landfills. But many cities, especially those from regions of poor or agricultural base, do not always have sufficient resources and open spaces for the construction of a landfill as required by law. Fits like a context in which it operates as an alternative technology for inter-municipal consortia landfill and public-private partnerships in order to contribute to the sustainable development of cities. The law that regulates public consortia is the Federal Law 11.107 of April 2005, as the law that regulates and makes possible the Public-Private Partnership is the Federal Law 11.079 of 2004. Consortia are entities that bring together several municipalities, with or without the State and the Union to carry out joint actions that if were borne singly, not would achieve the same results or would lose a greater volume of resources, and would demand more time. The public-private partnership consist of one or more municipalities and a private company, selected by public tender, which becomes responsible for implementation, maintenance and operation of the landfill. This practice can performed on the model of concession, in which public administration is direct or indirect user, with or without installation and ... (Complete abstract click eletronic access below)

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Fishing is a very important activity in terms of economic and social development throughout the Amazon region. Text reading this topic revealed the presence of a terminology not yet systematized and record little research and scientific publications on the terminology of this activity. This article aims at analyzing the key terms of fishing. At first, we present a brief history of this activity in Western Amazonia, particularly in Rondônia. The theoretical support was guided by Cabré (1999), with her Communicative Theory of Terminology, Aubert (1996), Barbosa (2002), Barros (2004), Biderman (2006), Babini (2006) and linguists as Baldinger (1966) and Pottier (1974) that reveal the details of linguistic analysis terminology. The creation of an electronic corpus, from texts of technical and documental discourse, theses and websites, composed the first stage of our work. Afterwards, collect the terms and fill the terminological records in our database. The terms were organized into a conceptual system with three notional fields: riverside community, type of fishing, gillnet fishing. Early results show that the set of terms collected is characterized by the strong presence of simple and complex terms, and less compound terms.

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The contributions of studies on Cognitive Styles are presented and discussed in this text, introductory and conceptually, in order to clarify and facilitate the discussion within the school education. With the theoretical origin in the cognitive psychology, more specifically, in studies of human cognition in differential perspective, the Cognitive Styles, are constructs developed to describe perceptual characteristics of the individual called "Dependence and Independence Field." In the course of this conceptual construction it is evidenced that individual perceptions are part of a broad set of interrelated factors that reflect the level of psychological differentiation of individuals. The studies show subjects with different Cognitive Styles, that are distributed in a "continuum" in order to set up a statistical normality. Therein some educational implications related to the Cognitive Styles are evident in relation to how the students learn, how the teachers teach, to the formal education in itself and to the career plan. The Cognitive Styles has a broad spectrum of influence on the relationship established in the teaching-learning process. So, these concepts need urgently to be better understood in the context of education.

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RESUMO: O objetivo do estudo foi estimar a validade e confiabilidade da Escala de atitudes em relação à Estatística (EAE) quando aplicada a estudantes de Ciências Farmacêuticas. A amostra de 253 estudantes foi subdividida em duas partes. Sessenta por cento da amostra foi utilizada para explorar a estrutura fatorial e 40% para confirmá-la. Para verificar a reprodutibilidade da escala a mesma foi aplicada em duplicata a 40 estudantes. Aplicou-se o Teste de esfericidade de Bartlett e o índice Kaiser-Meyer-Olkin (KMO). A extração dos fatores foi realizada pela Análise de Componentes Principais. Realizou-se rotação ortogonal Varimax. Calculou-se o Coeficiente alfa de Cronbach (α) e o Coeficiente de Correlação Intraclasse (ρ). Realizou-se análise fatorial confirmatória. Elaborou-se um modelo hierárquico de segunda ordem (MHSO). O teste de esfericidade de Bartlett e o índice KMO foram excelentes (χ 2 =1835,815, p<0,001; KMO=0,935). Verificou-se dois fatores com valores próprios acima de 1 (λ=9,748; λ=2,086) explicando 59,2% da variância total. A questão 2 foi removida. Observou-se excelente consistência interna e reprodutibilidade. O modelo fatorial apresentou índices de qualidade de ajustamento bons (λ=0,59-0,86, χ 2 /gl=1,691, CFI=0,919, GFI=0,804, RMSEA=0,079). A validade discriminante dos fatores foi adequada. A EAE apresentou estrutura bifatorial na amostra com níveis de validade e confiabilidade adequados.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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