Antimicrobial Activity of Pyrimidine-5-carboxylic AcidAntimicrobial activity of synthesized, novel hydroxamic acid of pyrimidine-5-carboxylic acid and its complexes with Cu(II), Ni(II), Co(II) and Zn(II) metal ionsBhawani Shankar, Rashmi Tomar, Madhu Godhara, Vijay Kumar SharmaABSTRACTFour metal complexes of new hydroxamic acid, 2,4,6-trioxo-1,3-di-p-tolyl-1,2,3,4,5,6-hexahydropyrimidine-5-carboxylic acid hydroxamide (3) with Cu(II), Ni(II), Co(II) and Zn(II) metal ions have been synthesized. The hydroxamic acid and its metal complexes were characterized by simple analytical techniques such as repeated melting point (M.P.) determination, elemental analysis, running their thin layer chromatography for single spot, and spectroscopic techniques such as I.R., H1-NMR and UV-Vis. (only for metal chelates) spectroscopy. Antimicrobial activity of the hydroxamic acid and their metal complexes were screened against two species of bacteria and two species of fungi by Serial Dilution Method.

 Â     Photovoltaic cells are solid state devices that convert light directly into electricity. Photovoltaic literally means “light electricity.” These devices can be commonly found providing power for small scale devices such as calculators, watches, and small radios. However, they are not limited to small scale systems. They are also used to power satellites, communications equipment, houses and many other things, especially in remote locations where a power grid is not readily available. In isolated locations the only power attainable comes from the sun. The sun shines approximately 1000 watts of energy per square meter of the planets surface, which if harnessed could power any city.      The commercial development of the photovoltaic cell took more then a hundred years to begin. A french physicist Edmond Becquerel first described the photovoltaic effect in 1839. At the age of 19 Becquerel found that certain materials when exposed to light produced small measurable currents.

Islamic Equity Investment Risk and Return BehaviourIslamic equity investments deal with the application of Shariah in stock selection in fund management. Islamic equity investment is a new and emerging concept in fund management and posed a slow growth compared with a fast paced growth in Islamic fixed income Sukuk markets and Islamic banking in the current decade. However Islamic equity investments contain a significant potential to generate above average risk adjusted returns than conventional equity investment as discussed in this paper. The thesis argues about the risk  returns behavior of Islamic equity investments by analyzing the risk  return behavior of Karachi Meezan Index, an Islamic index traded at Karachi stock exchange, over the period of two and a half years. Karachi Stock Exchange 100 index and Karachi Stock Exchange 30 index was used as benchmarks to find out if there are any significant differences in the returns  volatility of KMI30 and KSE 100.

+ Recent posts