Posted by admin on Feb 1, 2014 in |
Metal Complexes of lanthanum (III), Thorium (IV) and dioxouranium (VI) with Schiff base ligand ethyl 2-{[(2E, 3Z)-4-hydroxypent-3-en-2-ylidene] amino}-4, 5, 6, 7-tetrahydro-1-benzothio-phene-3-carboxylate were prepared. All synthesized complexes were identified and confirmed by elemental analysis, molar conductance measurements and spectral analysis (UV-visible, IR and 1H NMR). The conductance measurement suggested the non-electrolyte nature of the complexes and they were isolated in 1:2 (M: L) ratio. The thermal behavior (TGA/DTA) of the complexes was studied and kinetic parameter was determined by Coats-Redfern method. The data from thermo gravimetric analysis clearly indicates that decomposition of the complexes proceeds in two or three steps .The decomposition of all the complexes ended with the metal oxide. These metal complexes also showed its potential as an antibacterial agent against pathogenic strains causing urinary tract...
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Posted by admin on Feb 1, 2014 in |
Recent evidence indicates that fish, an extremely valuable resource, are quickly becoming scarce. One consequence of this scarcity is the increasing concern for fish survival and a growing interest in identifying the levels of various chemical pollutants, which are safe for fish and other aquatic life. Pesticides are among the most hazardous chemicals to men and ambient. Insecticides are extensively used to protect agricultural crops against the damages caused by pests. However, these chemicals may reach other ecological compartments as lakes and rivers through rains and wind affecting many other organisms away from the primary target. Biochemical and physiological variables show specific responses to certain type of environmental stress. The insecticide Encounter (Herbal plant extract) is used for the present study. The fishes were exposed to different concentrations of insecticide ‘Encounter’ to calculate the LC50 value. The LC50 value is 0.11ppm. Four groups of fishes were exposed for 24, 48, 72 &96 hours respectively. At the end of each exposure period, fishes were sacrificed and tissues such as liver,...
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Posted by admin on Feb 1, 2014 in |
Objective: To compare the antibacterial activity of different solvent extract of Clavaria rosea. Method: Different solvent extract of Claveria rosea was prepared. Standard cultures of Escherichia coli (MTCC-1698), Klebsiella pneumoniae (MTCC-7028), Pseudomonas aeuroginosa (MTCC-1934), Salmonella typhi (MTCC-733), Xanthomonas campestris (MTCC-2286), Pseudomonas syringae (MTCC-1604) and Agrobacterium tumefaciens (MTCC-431), gram negative. Staphylococcus aureus (MTCC-902) and Streptomyces pneumoniae (MTCC-4734), gram positive were used for the study. The antibacterial tests used were the agar well plate method. Tetracycline and Ciprofloxacin was used as the positive control. Results: The chloroform and methanol extract of Claveria rosea does not show any activity against X. campestris, E. coli, S. typhi, P. aeuroginosa and P. syringae at all concentration in gram negative pathogens. Whereas petroleum ether extract cannot show against S. pneumoniae at all concentration in gram positive pathogens. However, the activity was less than the standard Tetracycline and Ciprofloxacin. The extract shows increasing inhibitory activity with increase in concentration (50%-100%). Conclusions: The use of natural products including medicinal mushrooms is increasing day by day and the...
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Posted by admin on Feb 1, 2014 in |
This paper identifies and analyzes the determinants of public and private health care expenditure in Greece over the period 1970-2004 to assess its relationship with the lack of an integrated Primary Health Care System. The determinants assessed are those commonly stated in international literature as influencing health expenditure growth, i.e. per capita GDP-Gross Domestic Product- (income), demographic ageing and induced demand, expressed through the number of physicians. Several multiple linear regression models were developed and selected through stepwise entry and backward elimination. Dependent variables were per capita public and private health care expenditure. According to the results, the most important determinant, for both public and private health care expenditure, is population ageing. Per capita GDP is strongly and positively related to public health care expenditure, as well as to private health care expenditure, the latter, however, in a non-statistically significant form. The development of an Integrated Primary Health Care System in Greece has been constantly under discussion and review for the past two decades. Nonetheless, the lack of gatekeeping...
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Posted by admin on Feb 1, 2014 in |
Infectious diseases are the second leading cause of death worldwide. The use and search for drugs and dietary supplements derived from plants have accelerated in recent years. The aim of this study was to evaluate the antifungal activities of the essential oils derived from some species of medicinal plants:Stachys pubescens, Coriandrum sativum, Cinnamomum zelanicum and Bupleurum falcatum against Fusarium oxysporum, Aspergillus flavus and Alternaria alternate. The essential oils were used to evaluate their MIC and MFC compared to the Amphotericin B as a reference antibiotic. Also the essential oils were analyzed by GC/MS. Results from the antifungal testing indicated that B. falcatum, S. pubescens and C. zelanicum essential oils showed high activities and inhibited the growth all of the selected fungi. While the essential oil of C. sativum displayed the moderate potential activity. The number of 6, 9, 15 and 22 components was identified in C. sativum, C. zelanicum, B. falcatum and S. pubescens respectively. These oils exhibited a valued potency, against the fungi. With consider of the result...
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