Procedeu-se à criopreservação do sêmen de oito tourinhos Gir Leiteiro, com idade média de 25 meses, pré-selecionados para elevada pontuação (média 84,4±5,6) na classificação andrológica por pontos (CAP), em dois diferentes diluidores: um à base de lactose-gema-glicerol e outro à base de lecitina de soja. As curvas de resfriamento e congelação foram padronizadas com o auxílio da máquina CRYOGEN®. Os parâmetros p...
Avaliaram-se o desenvolvimento e a qualidade de embriões bovinos, cocultivados com células epiteliais do oviduto bovino (CEOBs) expostas ou não ao estradiol e à progesterona. Os ovócitos foram maturados in vitro por 24h e, então, fertilizados utilizando-se sêmen congelado, em estufa de CO2 a 5% e 38,5ºC. As CEOBs foram cultivadas em TCM-199 com ou sem estradiol (E2) (24 horas), nas mesmas condições da maturação...
The great variety of angiosperms shows the need to development of botanical classification systems supported by phytochemistry, biochemistry and others. Recently, techniques of analysis used for the isolation and characterization of secondary metabolites have been employed as auxiliary quick and efficient methods for the identification and classification of plant species. M. salicifolia is popularly known in Br...
The activity of Control Center operators is important to guarantee the effective performance of Power Systems. Operators’ actions are crucial to deal with incidents, especially severe faults, like blackouts. In this paper we present an Intelligent Tutoring approach for training Portuguese Control Centre operators in tasks like incident analysis and diagnosis, and service restoration of Power Systems. Intelligen...
A cultura do gergelim (Sesamum indicum L.) constitui-se em alternativa de grande importância econômica e social para as condições semi-áridas do Nordeste brasileiro, por ser de fácil cultivo, apresentar tolerância a estiagem e, principalmente, por gerar renda e trabalho e por ser fonte de alimento para pequenos e médios produtores. As áreas do Semi-Árido do Nordeste brasileiro destacam-se como possuidoras de co...
There is a recent proposal of identifying the Higgs particle of the Standard Model as a pseudo Nambu-Goldstone boson. This new broken symmetry introduces new particles and new interactions. Among these new interactions a central role to get an experimental signal of a new physics is played by the new neutral gauge bosons, A H and Z H. We study the associated production of general new neutral gauge boson Z¢ and ...
Little Higgs models were recently proposed as an alternative for models of electroweak symmetry breaking. They can be regarded as one of the important candidates of the new physics beyond the Standard Model. We consider here the phenomenology of the minimal model of this type, the "Littlest Higgs Model" (LHM). It predicts the existence of the new gauge bosons Z H and A H. We calculate the contributions of these...
2007
Neopterin is synthesized by human monocyte-derived macrophages upon stimulation with interferon-[gamma] (IFN-[gamma]). Measurement of neopterin concentration is useful to monitor cell-mediated (Th1-type) immune activation. ; http://www.sciencedirect.com/science/article/B6TBB-4MCW9PR-1/1/bc45a63c4693fa42da0b7c7b88fbc990
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