introduction although renal transplantation from cadaver is common, living donors continue to be an important source of transplanted kidneys. recipients of living-donor kidneys demonstrate improved graft survival. in this study, we evaluated the outcomes of renal transplantation from cadaver, related donors and unrelated donors in isfahan. methods we evaluated all of the patients who underwent ...

Proton exchange membrane fuel cells (PEMFCs) are electrochemical devices that show the highest power densities compared to the other type of fuel cell. In this work, nanocomposite membranes used for proton exchange membrane fuel cells as poly(vinyl alcohol)/La2Ce2O7 (PVA-LC) with the aim of increasing the water uptake and proton conductivity. Glutaraldehyde (GA) was used as cross linking agent ...

Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC). Poly (ether ether ketone) (PEEK) was sulfonated in concentrated H2SO4 under N2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (H-NMR) technique. After preparation of the SPEEK polymer, the obtained polymer was dissolved i...

2',7'-Difluorofluorescein (Oregon Green 488) is a new fluorescein-based dye, which has found many applications, above all in biochemistry and neurosciences, and its use has become very popular in the last years. In recent years, we have been investigating the excited-state proton exchange reactions of fluorescein and the effect of suitable proton acceptors and donors which promote these reactio...

objectives the aim of the present study was to determine the prevalence of anti-hbc and hbsag in blood donors. further, the study aimed to estimate the anti-hbc level at which hbv dna is detected in putative obi cases, as well as to search for mutations in the “a” determinant associated with the non-detection of hbsag in serum. conclusions we observed that as the anti-hbc levels increase, there...

Introduction: Proton radiotherapy is the one of advanced teletherapy methods. The protons deposit their maximum energy in a position called Bragg peak. Therefore, for treatment of cancer, the tumor should be placed at the Bragg peak or SOBP. The scattered photons and neutrons is a challenge in proton radiotherapy. The aim of this study is calculation of absorbed dose from scatt...

background when using brain dead donors for organ donation, assessment of kidney function before the procedure is essential. objectives it would be ideal to find an early marker of viability of donor kidneys that is more accurate than creatinine. patients and methods the present study was conducted from march of 2011 to march of 2012, included 52 deceased donors. serum and urinary neutrophil ge...

background and objective: brucellosis is a zoonotic disease of worldwide distribution and has great economic importance. despite its control in many countries, it remains endemic in iran. brucellosis was investigated in many high risk occupational groups; however, few studies on the prevalence of brucellosis among blood donors are available. to determine the seroprevalence of brucellosis antibo...