Influence of the water supply on the cambial growth dynamics of Swietenia macrophylla King under controlled conditions.

Study on the relationship of site factors (lighy, water, nutrient supply) of degraded areas on the growth dynamics and wood formation of native mahogany (mogno) in central Amazon. In this work the relationship of the water supply and the cambial growth dynamics of four years old mogno was investigated under greenhouse conditions. The results indicated the strong dependency of the cambial growth of mogno on a sufficient soil water supply

Sistematização de dados bibliográficos relacionados aos impactos ambientais da produção agrícola sobre as águas fluviais no corredor de Nacala, Moçambique.

Resumo: As atividades do bolsista foram desenvolvidas no escopo do ProSAVANA-TEC (Projeto de Melhoria da Capacidade de Pesquisa e de Transferência de Tecnologia para o Desenvolvimento da Agricultura no Corredor de Nacala em Moçambique), organizando levantamentos bibliográficos de informações disponíveis na internet sobre a qualidade da água superficial nas bacias hidrográficas localizadas na região do Corredor de Nacala e em Moçambique como um todo. A organização do material bibliográfico foi realizada por meio dos programas computacionais "ZOTERO", "MENDELEY.COM" e "MENDELEY- DESKTOP". Por fim, obteve-se uma coletânea de material bibliográfico, organizado digitalmente, para otimizar as consultas bibliográficas dos membros da equipe do ProSavana, assim como de outros interessados nos temas desta coletânea, assim facilitada pelo uso da ferramenta computacional selecionada. Abstract: The activities of the grantee have been developed within the scope of ProSavana-TEC (Project Capacity Enhancement of Research and Technology Transfer for the Development of Agriculture in the Nacala Corridor in Mozambique), organizing bibliographic information available on the internet about the surface water quality in the river basins located in the region of the Nacala Corridor as well as Mozambique as a whole. The organization of the bibliographic material was performed by the use of the softwares"Zotero", "MENDELEY.COM" and "Mendeley-DESKTOP". Finally, we obtained a collection of bibliographic material, that was digitally organized, to optimize the bibliographic queries of theProSavana team members as well as queries of other people interested in topics of this collection , which access will be facilitated by the use of the selected computational tools

Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC): capacitação gerencial de usuários.

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Ovinos Santa Inês: estado de arte e perspectivas.

[Santa Inês hair sheep: state of art and perspectives]. Abstract: The Santa Inês hair sheep breed is found in whole to areas of Brazil. Its origin has been object of vary speculations. However, the most probable could be traced starting from combinations of four genetic sources: a) Criuola is wool type of sheep, brought by Portuguese and Spanish settlers, but that eliminated the wool under tropical conditions was; b) Hair sheep breeds originating from of the African continent, which originated most of the hair sheep breeds from Brazil, Central America and Caribbean; c) Bergamácia sheep breed from Italian, which was crossed with the remaining sheep of those originating from of the African continent, and Morada Nova, followed by adaptation, selection and evolution for absence of wool; d) finally, in the end of the decade of 80, a small group of the breeders added to Santa Inês the Somalis and Suffolk breeds. The breed presents good reproductive, adaptability and growth potential. The pattern of the coat calor includes the white, the red, the black and the mailed. In field conditions the ewes reach weights of 40-60 kg and the males can reach up to 120 kg. The selection practiced in the breed has been done in direction for size and body weight, absence of wool and horns and, presence of an intense pigmentation. The females present good maternal ability and they get easily to give birth vigorous lambs. The age to the puberty and first lambing, lambing interval, fertility, the prolificacy and the survival rate from weaning found in the literature, vary from: 274 to 376 days, 442 to 551 days, 227 to 307 days, 83,6 to 93%, 1,1 to 1,4 and, from 69 to 87%, respectively. The Santa Inês lamb can reach 23-32 kg at weaning and gain 166 -336 kg. At slaughter, Santa Inês Lamb, had dressing percentage of approximately 48,0 %. The animals generally demonstrate capacity to develop a strong answer immunology against the nematodes gastrontestinais, even before of the weaning. That skin presents great market value, due to the high quality pattern, resultant of its largest elasticity and excellent flexibility, and great resistance, associated to a fine texture, being rendered for use in several manufactured products. In spite of the few studies involving the face Santa Inês the breed has been demonstrating to be an excellent alternative to increase the production of meat in the main areas of the country, considering its reproductive capacity, resistance sponges it gastrontestinais, skin quality and adaptability , besides good growth rate

Model for erosion-deposition patterns

We investigate through computational simulations with a pore network model the formation of patterns caused by erosion-deposition mechanisms. In this model, the geometry of the pore space changes dynamically as a consequence of the coupling between the fluid flow and the movement of particles due to local drag forces. Our results for this irreversible process show that the model is capable to reproduce typical natural patterns caused by well known erosion processes. Moreover, we observe that, within a certain range of porosity values, the grains form clusters that are tilted with respect to the horizontal with a characteristic angle. We compare our results to recent experiments for granular material in flowing water and show that they present a satisfactory agreement.Comment: 8 pages, 12 figures, submitted to Phys. Rev.

Influenciando políticas públicas para a ovinocultura leiteira, estratégias para o desenvolvimento de uma atividade emergente.

O que são políticas públicas?; Aprendendo a influenciar políticas públicas: exercício de cidadania

A raça Assaf: melhoramento sem preconceitos.

A raça Assaf é uma raça sintética, assim como a Dorper. A Assaf é o resultado do cruzamento das raças Awassi, originária do Oriente Médio e da alemã/holandesa Ostfriesisches Milchschaf, ou East Friesian ou "aportuguesando" Frísia do Leste.bitstream/item/175612/1/CNPC-2009-A-raca-Assaf.pd