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polarographic methods have been developed for the determination of two cephalosporins namely cefotaxime (ctx) and ceftriaxone (ctr) in pharmaceutical formulations. well defined peaks at potentials –1.432 v vs. sce for ctx and –1.627 v vs. sce for ctr were obtained in the presence of tungsten (vi). the method has been successfully applied for the determination of above mentioned cephalosporins i...
We use a bag model to study flavoured mesonic (Qqq̄q̄) and baryonic (Qqqqq) states, where one heavy quark Q is associated with light quarks or antiquarks, and search for possible stable multiquarks. No bound state is found. However some states lie not too high above their dissociation threshold, suggesting the possibility of resonances, or perhaps bound states in improved models. 12.40. Aa, 14.20...
Background: To assess the economic aspects of HBV (hepatitis B virus) transmission prevention for premarriage individuals in a country with cultural backgrounds like Iran and intermediate endemicity of HBV infection. Materials and methods: A cost-effectiveness analysis model was used from the health care system and society perspectives. The effectiveness was defined as the number of chronic HB...
testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...
We present neutron scattering measurements of the phonon-roton and layer modes of liquid helium films adsorbed in 25-Å pore diameter gelsil as a function of temperature. The goal is to determine whether the well-defined phonon-roton and layer modes observed at low temperature at partial fillings of the porous media persist as well-defined modes at higher temperatures above the superfluid phase,...
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