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In this study 2 phosphatidylinositol 3-kinase (PI 3-kinase)-specific inhibitors, wortmannin and 2-[4-Morpholinyl]-8-phenyl-4H-1-benzopyran-4-one (LY294002), were used to investigate whether PI 3-kinase is involved in the signal transduction that leads to bovine oocyte maturation. Bovine follicular oocytes were cultured in vitro for 24 h in a basic medium consisting of tissue culture medium-199 supplemented...
Nitrous oxide (N 2 O) fluxes were measured from rice fields treated using different irrigation techniques and types of urea fertilisers. The highest flux was 131.56 μg N 2 O-N m -2 h -1 , measured during the fifteenth week after transplanting and the lowest was -17.56 μg N 2 O-N m -2 h -1 , measured in the twelfth week. ...
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