581 resultados para Pirbal Mahmoud


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This paper deals with the TV educational media production. The main objective is to simplify production process and increase productivity. A resource management methodology is proposed. The proposed system is mainly a database of scenes and scripts (procedures) that make the TV Educational Program Unit (TVEPU). The system needs two levels of preparation. The first, which is the primary effort, is done to initiate the scenes database. The second preparation is a continuous work, is done through the system operation, updating, and maintenance. The database initiation contains the analysis and breakdown of the available material to small ingredients that constitutes the starting molecule. This molecule will be used to prepare simple and short units (TV educational program units). By the time and use of the system, the database will enlarge. This will increase system productivity and modify production quality.

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This thesis presents an algebraic framework for multimodal image fusion. The framework derives algebraic constructs and equations that govern the fusion process. The derived equations serve as objective functions according to which image fusion algorithms and metrics can be tuned. The equations also prove the duality between image fusion algorithms and metrics.

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Urban outdoor spaces are considered essential elements of cities, where the greatest amount of human contact and interaction takes place. That is the reason why there is increasing public interest in the quality of open urban spaces as they can contribute to the quality of life within cities, or contrarily increase isolation and social exclusion. There are a lot of factors influencing the success of the outdoor spaces; one of the principal factors is the microclimatic comfort. In the hot areas, the outdoor thermal comfort conditions during the daytime are often far above acceptable comfort standards due to intense solar radiation and high solar elevations. The variation of the urban spaces' configuration can generate significant modifications of the microclimatic parameters. Design decisions such as street and sidewalk widths, shading structures, materials, landscaping, building heights, and inducing air flow have a significant impact on the pedestrian thermal comfort and subsequently on the use of the urban environment. Although it has been established that the vegetation elements should be considered as one of the main tools that can be used in improving the thermal comfort in outdoor spaces, the integration of the climate dimension in the planting design process in urban spaces is lacking because of insufficient interdisciplinary work between urban climatology, urban design and landscape architecture. The primary aim of this research is to study the influence of some of the design decision for the plantation elements in outdoor spaces on the thermal comfort of its users. This will provide landscape designers and decision makers with the appropriate tools for effectively assessing the development of urban environment while considering the microclimate of outdoor spaces. A special emphasis is put on summertime conditions in Egypt. Findings of this research will contribute to sustainable urban design of outdoor spaces.

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Microbial infections of the cornea frequently cause painful, blinding and debilitating disease that is often difficult to treat and may require corneal transplantation. In addition, sterile corneal infiltrates that are associated with contact lens wear cause pain, visual impairment and photophobia. In this article, we review the role of Toll-Like Receptors (TLR) in bacterial keratitis and sterile corneal infiltrates, and describe the role of MD-2 regulation in LPS responsiveness by corneal epithelial cells. We conclude that both live bacteria and bacterial products activate Toll-Like Receptors in the cornea, which leads to chemokine production and neutrophil recruitment to the corneal stroma. While neutrophils are essential for bacterial killing, they also cause tissue damage that results in loss of corneal clarity. These disparate outcomes, therefore, represent a spectrum of disease severity based on this pathway, and further indicate that targeting the TLR pathway is a feasible approach to treating inflammation caused by live bacteria and microbial products. Further, as the P. aeruginosa type III secretion system (T3SS) also plays a critical role in disease pathogenesis by inducing neutrophil apoptosis and facilitating bacterial growth in the cornea, T3SS exotoxins are additional targets for therapy for P. aeruginosa keratitis.

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The Islamic Republic of Iran has pursued full membership in the Shanghai Cooperation Organisation (SCO). In doing so, Iran has appeared to be unfazed by the prospect of allying with Russia and China, two countries which have systematically suppressed their Muslim minorities for decades. Similarly, the SCO's Central Asian member states are led by individual leaders who are generally believed to rule in spite of their populations. As a result, Iran's eagerness to join the SCO may appear to contradict its self-promoted image as the champion of Muslim interests, but in reality it sits nicely within its overarching enmity for the USA. Indeed, the SCO is seen as a geopolitical counterweight to the USA. For Iran, this geopolitical opportunity overrides ideological imperatives, with the gap between ideology and geopolitics most evident under the presidency of Mahmoud Ahmadinejad.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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A adubação nitrogenada é de suma importância para a cultura do trigo, já que o nitrogênio constitui um dos nutrientes mais exigidos por essa cultura e o rendimento desta é função direta da quantidade de nutrientes acumulados pela planta. Foram testados os adubos nitrogenados: sulfonitrato de amônio com inibidor de nitrificação, sulfato de amônio e uréia, na dose de 70 kg de N ha-1; em duas épocas de aplicação, na linha de semeadura ou em cobertura, além da testemunha que não recebeu nitrogênio como tratamento, em quatro cultivares de trigo irrigado: Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 21, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 22, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 42 e IAC 370. O experimento foi conduzido sob irrigação por aspersão em dois anos (2005 e 2006) em área experimental pertencente à Faculdade de Engenharia de Ilha Solteira UNESP/São Paulo - Brasil. As fontes de nitrogênio sulfonitrato de amônio com inibidor de nitrificação, sulfato de amônio e uréia não diferiram entre si, porém foram superiores à testemunha, em relação à produtividade de grãos. A aplicação do N todo em cobertura proporcionou aumento na produtividade de grãos. O comportamento das cultivares quanto aos componentes de produção e produtividade foram dependentes do ano em estudo.

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Soil porosity influences plant development since root growth and crop yield are determined by the root depth. The objective of this study was to investigate the linear and spatial variability and correlations between common bean yield and soil porosity. The bean grain yield of the irrigated cultivar Carioca IAC was analyzed in the growing season 2004/2005, in Selviria-MS, as well as macroporosity (MA), microporosity (MI) and total porosity (TP), in a Dystroferric Red Latosol, at four depths: 1 (0.0-0.10 m), 2 (0.10-0.20 M), 3 (0.20-0.30 m) and 4 (0.30-0.40 m). Soil and plant data were collected in a geostatistical grid with 135 points spaced 10 m apart, covering an area of 50 x 150 m. The data of the studied attributes did not vary randomly and the values were intermediate to low. They followed well-defined spatial standards, reaching between 11.70-104.40 m. on the other hand, the linear correlation between the plant and soil attributes was low, due to the high number of observations. Grain yield had the best linear correlations with MA1b, MI1 and TP3. From the spatial point of view, the inverse correlation between PG and #TP2 was outstanding. At the sites where #TP2 diminished (0.030-0.045 m(3) m(-3)) the yield varied from 2,173 to 3,529 kg ha(-1) and where it increased (0.045-0.076 m(3) m(-3)), the yield was between 1,630 and 2,173 kg ha(-1). Therefore, the total soil porosity, evaluated in the 0.10-0.20 m layer (#TP2), indicated the importance of the contact root/soil and was in turn a satisfactory indicator of soil physical quality, with a view to the grain yield of irrigated common bean.

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