the transfusion transmitted infections are potentially dangerous complications of transfusion therapy in immunocompromised patients. the aim of this study was to determine the prevalence of transmissible infections in blood donor population in kashan, iran. a total of 600 consecutive sera were tested for cmv-igm antibody, hbsag, hepatitis b core (hbc) antibody, hepatitis c (hcv) antibody, and h...

conclusions the analysis indicates that the hev isolated from blood donors in the southwest of iran belongs to genotype 1. however, more samples from other geographic regions of iran are needed to confirm these findings. because transmission of hev by administration of blood or blood components is likely to occur, it may be sensible to screen donor blood for hev to eliminate transfusion-transmi...

effects of imidazoles and substituted pyridines and pure s-donors on the oxidation of cyclooctene with naio4 by 5,10,15,20-tetraphenylporphyrinato-manganese(iii) acetate, mn(tpp)oac, and 5,10,15,20-tetramesitylporphyrinato-manganese(iii) acetate, mn(tmp)oac, catalysts in ch2cl2-h2o solvent are studied. coordination of the nitrogen donors to the mn-catalysts generally caused a reduction in the e...

Amino acid residues in proteins that possess an ionizable proton can display ligand properties. Nitrogen donors include the imidazole group of histidine, the &-amino group of lysine and the guanadinium group of arginine. Thecarboxyl groups of aspartate and glutamate and the hydroxyl group of tyrosine can function as oxygen donors, and the thiol group of cysteine can act as a sulphur donor. The ...

backround laryngopharyngeal reflux (lpr) is the backflow of stomach contents above upper esophageal sphincter, into the pharynx, larynx, and upper aerodigestive system. objectives in this study, effects of omeprazole over voice quality in muscle tension dysphonia with laryngopharyngeal reflux was ınvestigated. patients and methods nine patients, 7 males and 2 females, aged between 27-43 (mean a...

Heterogeneous proton exchange membranes (PEM) are synthesized using the dry phase inversion technique. The casting solutions are prepared by dispersing a finely ground cation exchange resin particle in N,N-dimethylacetamide (DMAc) solution of polyvinyl-chloride (PVC). Results show that ion exchange capacity is increased with the addition of 1 %-wt nanosilica (from 0.14 to 0.27 meq/g) while it i...

Background: In radiation therapy with ion beams, lateral distributions of absorbed dose in the tissue are important. Heavy ion therapy, such as carbon-ion therapy, is a novel technique of high-precision external radiotherapy which has advantages over proton therapy in terms of dose locality and biological effectiveness.Methods: In this study, we used Monte Carlo method-based Geant4 toolkit to s...

Background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. Several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...