in present investigation, zno nanostructure was synthesized by means of a precipitation and sonochemical methods. the x-ray diffraction (xrd) pattern is shown that the wurtzite structure of zno has the hexagonal symmetry and there is no impurity. the average zno particles crystallite size was calculated about 41 nm. the sem and tem images reveal nanostructure zno particles with a cauliflower-li...

to evaluate effected of supplemental irrigation and seed priming on yield and some quantity and quality characteristics of  vetch (vicia dasycarpa) rainfed maragheh cultivar, an experiment was carried out at the research farm of faculty agriculture of urmia university, west azarbaijan province, iran, during 2011. the experimental design was split-plot, laid out in randomized complete block with...

introduction: over expression of selected peptide receptors in human tumors has been shown to represent clinically relevant targets for cancer diagnosis and therapy. the aim of this work was to investigate neuropeptide y (npy) as a new radiopharmaceutical for diagnosis of breast cancer. methods: a neuropeptide y analogues with y1 receptor preference and agonistic properties was synthesized by s...

in this study, removal of acid blue 62 from aqueous solution by mesoporous silicate mcm-41 modified by aminopropyltriethoxysilane (aptes) composite was studied. properties of synthesized composite were analyzed and confirmed by sem, edx and ftir. results show that langmuir adsorption isotherm has the best compatibility with the results of experiments. kinetic analysis using pseudo-first-order m...

the present study reports a microwave-assisted method for the synthesis of twelve novel tricyclic 1,4-dihydropyridine derivatives in which dimethyl-substituted cyclohexane and / or tetrahydrothiophene rings are fused to the dhp ring. the structures of the compounds were confirmed by spectral methods and elemental analysis. the potassium channel opening effects of the compounds were determined o...

abstract background: rhabdomyosarcoma is the most common soft tissue sarcoma among children which has two major subtypes: embryonal rhabdomyosarcoma (erms) and alveolar rhabdomyosarcoma (arms). distinction between these subtypes is mandatory to choose proper treatment and to determine prognosis. histopathologic study is the main method, but nowadays molecular studies like pcr are also used. the...

hie-124 is a new member of ultra-short acting hypnotics’ drug family. in this research, the synthesis ofanalogues of hie-124 drug in the heterocyclic thiazole ring replaced to thiadiazole, will be presented.thiadiazolodiazepines during a two-step reaction starting from the amino thiadiazole resultedfrom-various derivatives of benzoic acid and thiosemicarbazide were synthesized. in the first ste...

the therrmodynamic parameters and equilibrium constant of displacement of dimethy sulfide by 3-carboaldehyde pyridine as n-donor ligand in cis-[pt(4-mec6h4)2(sme2)2] complex have been measured using uv vis spectroscopy in acetone, dichloromethane and benzene at various temperatures (t=15-20 °c) and compared with previous my reported about similar reaction. δho (kj.mol-1) of the mentioned reacti...

this qualitative study was conducted to identify the factors and barriers of entrepreneurship development from the perspective of iranian entrepreneurs. in terms of purpose, this study is applied- developmental and it is performed via descriptive phenomenological method. qualitative content analysis was used to collect the data. the study population comprised of recorded interviews with the ent...

objective(s) in addition to antihypertensive effects, amlodipine may exhibit cardiovascular protective effects in heart tissue. the aim of this study was to evaluate the effects of amlodipine and/or high cholesterol diet on blood, heart tissue concentration and mrna expression of endothelin-1 (et-1) in male new zealand white rabbits. materials and methods a total of 40 male new zealand rabbits ...