background: to determine the protective impact of efficient serum copper concentration on bmd in women and to asses its impression on bone. methods: six hundred healthy women through a national project in iran, imos, were selected via a cluster random sam pling and enrolled the study. they were divided to pre menopausal (404/600, 67.7% of total) and post menopausal (190/600, 32%of total) groups...

The interaction of copper oxide nanoparticles and copper ions and proteinase K from Tritirachium album Limber has been investigated employing UV spectroscopy and kinetics measurements. The aim of this study was to evaluate the effect of nanoparticles of CuO for proteinase K. In this paper we compare the effect of copper oxide nanoparticles with the effect of copper ions on proteinase K sta...

background copper (cu) is an essential trace element involved in normal reproduction but its overexposure may produce some detrimental effects. the aim of this study was to investigate the effects of copper sulfate poisoning on morphometery of mice ovarian structures and probable intracellular changes. methods thirty mature female mice were randomly allocated to control and two treatment groups...

the thermal decomposition of 86 % vinyl chloride 14 % vinyl acetate copolymer wasstudied by the conductometry technique in the presence of nitrogen. the kinetics of stability andthermal degradation of vinyl chloride- co- vinyl acetate (pvc- co- pvac) copolymer withcopper, copper oxide and tricalcium dicitrate (st) were investigated at various temperatures (150-180 oc ) in solution. the rate coe...

Although electrical fires constitute the greatest percentage of the main causes of building fires, the critical evidence used by fire investigators to identify electrical fires is not always convincing to the general public. In this study, we scrutinized the microstructures of fire-causing copper wires and simulated the external environmental conditions required for the formation of fire-causin...

This article reports on an investigation into the ability of minced banana peel to extract lead and copper ions from water and the parameters involved in this process. The kinetics of copper and lead uptake reached equilibrium in 10 min and the extraction of metals ions was favorable above pH 3. The medium was characterized by FTIR, which showed absorption bands of carboxylic and amine groups a...

Copper-Graphite laminate material design has been analysed, and this proposed composite has the ability to enhance heat dispersing more efficiently compared to the traditional high thermal conductivity with weight associated copper and high thermal resistance graphite. A finite element analysis (FEA) is carried out using the material (Cu – Gr) properties to investigate this proof. The design, t...