A capillary plasma z-pinch as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...

despite two decades of artificial spawning of wild carp (cyprinus carpio) to rehabilitate natural populations in the southeastern caspian sea, there are still no appropriate physiological criteria for selecting competent brooders during induced spawning. to this end, the plasma concentrations of vitellogenin (vtg), phosphorus (p) and calcium (ca) were measured during ovarian development, as pot...

the environmental pollution is one of the factors contributing to the decrease of sperm quality for human beings. the aim of this study was to assess cadmium (cd), chromium (cr), and copper (cu) concentration of man in environmental pollution site, and explore relationships between men exposure to cd, cr, and cu and semen-quality parameters in environmental pollution site.ninety five men were r...

background: the seminal plasma is an excellent source for noninvasive detection of spermatogenesis. the seminal plasma of normospermic and azoospermic men has been analyzed for detection of spermatogenesis. methods: optical spectroscopy (attenuated total reflectance-infrared spectroscopy (atr-ir) and fourier transform infrared spectroscopy (ft-ir) has been used to analyze the seminal plasma and...

a simple, reproducible and rapid gas chromatographic method for precise determination of valproic acid (vpa) in human plasma has been developed. total time for sample preparation and gc analysis is less than 45 min. after plasma protein precipitation, vpa was extracted into chloroform with suitable recovery. by using stabilwax®-da capillary gc column, a symmetrical gas chromatographic peak was ...

In this work structural defects were created in P25-TiO2 nanoparticles by using hydrogen DC plasma treatment in different temperatures and exposure times. X-Ray diffraction measurements show that the structure of TiO2 remains unchanged after hydrogenation. Diffuse reflectance spectroscopy measurements demonstrated band gap of TiO2 was not changed considerably by the hydrogenation. However, by a...