Enzymatic sulfation of A'-hydroxylated arylamines by mammalian hepatic cytosol sulfotransferases (AST; EC 2.8.2.1) is an important metabolic step which generates ultimate carcinogens. The metabolic activity of AST IV, the putative ¡sozymicform of AST primarily respon sible for catalyzing /V-hydroxy-2-acetylaminofIuorene sulfation, is mod ulated during 2-acetylaminofluorene (AAF)-induced rat he...

OBJECTIVES The increase of serum aspartate aminotransferase (AST) is generally found in hepatic, cardiac, muscular disease and hemolytic disorders of the red blood cell (RBC). The elevation of its activity is suspected in pathological conditions of these organs. However, instances without any of those conditions rarely exist. METHODS The experimental samples were obtained from a normal person...

We report the first measurement of exclusive cross sections $e^+e^-\to B\bar{B}$, B\bar{B}^*$, and B^*\bar{B}^*$ in energy range from 10.63 GeV to 11.02 GeV. The $B$ mesons are fully reconstructed a large number hadronic final states three channels identified using beam-constrained-mass variable. shapes show oscillatory behavior with several maxima minima. results obtained data collected by Bel...

Nanoparticles with unique catalytic, electronic, magnetic, optical and optoelectronic properties provide functional building blocks for organization into spatially well-defined assemblies, allowing for the possible extension of desirable properties of these nanoscale entities to the macroscopic level and the realization of complex devices. In the past decade, ‘bricksand-mortar’ assembly strateg...