258 resultados para Tolerância à seca


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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As teses de Foucatdt sobre a constituição do dispositivo da sexualidade encontram- se referenciadas em uma dupla crítica — histórica e metodológica — à hipótese repressiva da sexualidade. Trata-se de uma concepção positiva de poder que pretende dissociar dominação e repressão. A partir das idéias de Foucault sobre sexualidade e poder, o artigo procura estabelecer um contraponto entre suas concepções easde diferentes autores do campo marxista, como Marcuse e Adorno (identificados com a Escola de Frankfurt) e Pier Paolo Pasotini. Argumentase que as contribuições destes últimos parecem se inscrever em um registro que difere das teses foucaultianas acerca da produtividade do poder e, ao mesmo tempo, supera os limites impostos pela hipótese repressiva.

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Processo de umidificação de massas cerâmicas por sistema de moagem via seca com aspersão de polpa pertencente ao setor de cerâmica, que trata de uma invenção no processo de umidificação de massas cerâmicas para conformação de peças, aplicadas principalmente em pisos e revestimentos, em que se aplica aspersão de polpa na fase de umidificação do pó moído por via seca para a prensagem das placas cerâmicas. Adicionalmente, o processo pode também ser aplicado na fase de mistura, homogeneização, laminação e demais etapas de preparação da massa para manufatura de produtos de cerâmica vermelha ou estrutural extrudados (p.ex. tijolos, blocos e lajes), extrudados e prensados (p.ex. telhas) e de tornearia (p. ex. vasos e potes).

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Two experiments were carried out under greenhouse conditions to study the accumulation and distribution of dry mass and macronutrients in maize and Ipomoea hederifolia. Plants of both species had grown, separately, in pots with sand substrate and irrigation with nutrient solution. Treatments were represented by the times of evaluation, realized in intervals of 14 days, starting at 21 days after emergence (DAE). A maize plant showed slight growth up to 30 DAE, when dry mass allocation was higher in roots and leaves (80%); while an I. hederifolia plant, up to 50 DAE, when the allocation of dry mass was higher in offshoots and leaves (79). Dry mass accumulation was almost five times greater in maize (134 g per plant) than in I. hederifolia (29 g per plant). The average values of N and K contents were greater in I. hederifolia. Maximum accumulations of macronutrients by maize were 1,431; 474; 1,832; 594; 340, and 143 mg per plant, while by I. hederifolia, 727; 52; 810; 350; 148, and 65 mg per plant, for N, P, K, Ca, Mg, and S, respectively. Mean accumulation rate of dry mass and macronutrients by maize plants was crescent up to 87 DAE, reaching the maximum value at 103 DAE; while being crescent up to 121 DAE by I. hederifolia plants, reaching the maximum value at 138 DAE. Thus, beyond the interference on harvesting process, a population of I. hederifolia also can compete with maize crop for nutrients.

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OBJECTIVE: To assess whether the Brazilian Driving Dry Law reached its goal after the three years following its enactment. METHODS: We onnducted a retrospective study of patients with craniofacial fractures who underwent surgery at a university hospital in two periods: before the Law (2005 to 2008) and after the Law (2008 to 2011). RESULTS: 265 patients (220 men and 45 women) were operated on during this period, 149 (56%) before and 116 (44%) after the Law, which indicates a reduction in the number of traumatisms (p=0.04). The age range between 19 and 40 years predominated in both periods. The main causes of traumas were car accidents, physical aggression and falls. Alcohol abuse was identified in 15.4% patients before and 19% patients after the enactment. The jaw and the maxillo-zygomatic complex were the most affected bones. CONCLUSION: The drop in the number of polytraumatized patients operated on at this institution in the three years following the Driving Dry Law was 22%, which is below the expected and desired percentage. These results must be compared to those of different services offering the same attendance type in order to compile data and enlarge statistics. The low index of reduction in the number of traumatisms and the report of alcohol abuse by several patients at the moment of trauma, even after the law, evidence the need of adopting stricter measures to control and punish violators.

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The objective of this work was to evaluate the effect of sun and shade drying of the aerial part of cassava on the chemical composition and apparent digestibility coefficient (ADC) of nutrients, energy, and aminoacids for Nile tilapia (Oreochromis niloticus). There was no difference between the drying methods for chemical composition. The ADC of crude protein showed higher digestibility for the shade dried aerial part. Shade drying of the aerial part of cassava allows higher conservation of the protein content and better apparent digestibility of the protein and amino acid fraction for Nile tilapia.

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The aim of this study was evaluate the response of two coffee cultivars (tolerant and sensitive to aluminum - Al), inoculated or not by two arbuscular mycorriza fungi (AMF), Gigaspora margarita and Glomus etunicatum, in cerrado Oxisol, with different base saturation. This experiment was conducted under greenhouse conditions, with a complete randomized design, in a 2x3x2 factorial scheme, consisting of 2 cultivars (tolerante and sensitive to Al), 3 treatments with mycorrhizal (inoculated with two species of AMF and without inoculation) and 3 levels of soil base saturation (30, 45 and 53 V%), with five replicates per treatment. The variables were: plant height, stem diameter, leaf area, shoot dry weight, root fresh weight, nitrate reductase activity, chlorophyll concentration, root colonization and number of AMF spores. Mycorrhizae isolates promoted greater response of coffee plants, in acid soil with high concentration of Al, but this response was observed for both cultivars when plants were colonized by G. margarita. The cultivars evaluated showed no differences in Al tolerance when non inoculated.

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Pós-graduação em Agronomia (Agricultura) - FCA

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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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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)