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X-ray and radio monitoring of GX 339-4 and CYG X-1,-ray flux agrees with the jet model predictions.We then examine the radio flux/X-ray flux correlation in Cyg X-1 through the use of 15 GHz radio data, obtained with the Ryle radio telescope, and . data, from the . and pointed observations. We find evidence of ‘parallel tracks’ in the radio/X-ray cor

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What Limits Nitrate Reduction in Leaves?, nitrate reduction in situ. Rather, reductant (NADH) concentration appears to be the limiting factor whenever photosynthesis is suboptimal or absent. This may explain in part why over- or underexpression of NR in transgenic plants has surprisingly little effect on vegetative growth.

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Importance of Animal Models in the Field of Cancer Researchased on the method used to induce cancer in the animal. The mouse has been the standard animal model for fundamental and preclinical cancer research, although other species, such as zebrafish, serve essential and complementary roles as cancer research models. A number of treatments, including chemic