Impacts of the agricultural sector technological change on brazilian economy.

Long term economic and social impacts of the agricultural expansion in Brazil: invisible revolution and social inclusion; Increases in productivity and exports: an exploratory analysis; Effects of agricultural research on the consumer

Hydration and anomalous solubility of the Bell-Lavis model as solvent

We address the investigation of the solvation properties of the minimal orientational model for water, originally proposed by Bell and Lavis. The model presents two liquid phases separated by a critical line. The difference between the two phases is the presence of structure in the liquid of lower density, described through orientational order of particles. We have considered the effect of small inert solute on the solvent thermodynamic phases. Solute stabilizes the structure of solvent, by the organization of solvent particles around solute particles, at low temperatures. Thus, even at very high densities, the solution presents clusters of structured water particles surrounding solute inert particles, in a region in which pure solvent would be free of structure. Solute intercalates with solvent, a feature which has been suggested by experimental and atomistic simulation data. Examination of solute solubility has yielded a minimum in that property, which may be associated with the minimum found for noble gases. We have obtained a line of minimum solubility (TmS) across the phase diagram, accompanying the line of maximum in density (TMD). This coincidence is easily explained for non-interacting solute and it is in agreement with earlier results in the literature. We give a simple argument which suggests that interacting solute would dislocate TmS to higher temperatures

Densidade populacional de patógenos e antagonistas habitantes do solo em regiões produtoras de feijoeiro comum.

O objetivo deste trabalho foi estimar a densidade das populações de Fusarium solani, Fusarium oxysporum, Rhizoctonia solani e Trichoderma spp. em áreas relevantes para a produção do feijoeiro comum (Phaseolus vulgaris) nos estados do Paraná e de Minas Gerais, os dois principais produtores desta cultura no Brasil

Diversidade cultural, virulência e agressividade de Rhizoctonia spp. em solos cultivados com feijoeiro comum.

Este trabalho teve como objetivo avaliar a diversidade cultural, a virulência e a agressividade de isolados de Rhizoctonia solani ao feijoeiro comum (Phaseolus vulgaris), provenientes de áreas com histórico de cultivo desta espécie

Identificação, patogenicidade de isolados de Fusarium solani e severidade da podridão radicular no feijoeiro comum.

Para estimar a freqüência deste patógeno em áreas cultivadas e variações quanto aos danos causados às raízes, este trabalho teve como objetivo obter uma coleção de isolados de Fusarium spp., verificar sua patogenicidade e severidade de doença em feijoeiro comum

Patogenicidade e agressividade de isolados de Fusarium spp. habitantes de solos de cerrado cultivados com feijão comum.

Este trabalho teve como objetivo avaliar a seletividade do meio de cultura na obtenção de isolados de F. solani, e estimar a agressividade de isolados deste patógeno ao feijão comum.CONAFE

Environmental comfort indicators for school buildings in sustainability assessment tools

Decades ago, the only requirement to construct a building was to give men the right conditions for the execution of their work or leisure activities. With the development of knowledge about the internal and external environments of buildings, other requirements have been added such as the issue of user comfort. New construction techniques have been incorporated and new products have been created to improve internal environment comfort. This research addressed the importance of using indicators related to environmental comfort in sustainability assessment tools applied to school buildings. It also considered the importance of environmental issues for the good performance of human beings, and the harmonious coexistence of the comfort indicators indoor air quality, thermal comfort, visual comfort, acoustic comfort and ergonomic comfort based on data gathered in research carried out with users of high schools (only students). This research was carried out in two different cities of different countries, Guimarães (Portugal) and Juiz de Fora (Brazil), that have similar characteristics of teaching standards and climate conditions (temperature and air humidity). In this study, interviews were made through questionnaires and, later, the information collected was analyzed. This study demonstrates the need to include an ergonomic indicator for school buildings in sustainability assessment tools.The corresponding author wants to thank: the teacher and Administrative Director of Francisco de Holanda High School, Abílio Ferreira, for showing me the school and giving all the necessary information, always with great attention; Parque Escolar Company (EPE) for supplying the necessary material for the execution of the work; and Mrs. Catarina Araujo for helping me in the conception of this article. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.info:eu-repo/semantics/publishedVersio

Seletividade de meio de cultura e agressividade de isolados de Fusarium solani em feijoeiro comum.

Este trabalho teve como objetivo avaliar a seletividade do meio de cultura Nash & Snyder (NS) na obtenção de isolados de Fusarium solani, e estimar a agressividade de isolados deste patógeno ao feijão comum

Utilização de diferentes fontes de carbono por isolados de Fusarium solani.

Objetivou-se com este trabalho ajustar a metodologia para avaliação da diversidade fisiológica entre isolados de F. solani, por meio da utilização de diferentes fontes de carbono metabolizadas pelo patógeno