نتایج جستجو برای: chemical analysis

تعداد نتایج: 3128915  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...

Journal: :journal of the iranian chemical research 0
badr ismael abdul razzak department of chemistry, faculty of education, hodeidah university, yemen atta ibraheem atta department of medical laboratory, faculty of medicine science, hodeidah university, yemen

study of the ground water quality in hodeidah is an essential ingredient for a healthypopulation. in this research, study of drinking water samples for eight water sources wells in thequti field has been achieved. the purpose was to a certain the quality of water from thesesources, the physical properties such as ph, electrical conductivity (ec) and total dissolvedsolids (tds), showed the varia...

Journal: :journal of physical and theoretical chemistry 0
masoome sheikhi iran, islamic azad university siyamak shahab institute of physical organic chemistry, national academy of sciences of belarus,13 surganov str, minsk 220072, belarus

in the present work, the quantum theoretical calculations of the molecular structure of the 1-(1, 3-benzothiazol-2-yl)-3-(thiophene-5-carbonyl) thiourea has been predicted and are evaluated using density functional theory (dft) in gas phase. the geometry of the title compound was optimized by b3lyp/6-311+g and b3lyp/6-311+g* methods and the experimental geometrical parameters of the title compo...

Journal: :iranian red crescent medical journal 0
roghayeh chenary department of health, ilam university of medical sciences, ilam, ir iran azita noroozi department of health education and promotion, bushehr university of medical sciences, bushehr, ir iran; the persian gulf marine biotechnology research center, bushehr university of medical sciences, bushehr, ir iran; department of health education and promotion, school of health, bushehr university of medical sciences, bushehr, ir iran sedighe sadat tavafian department of health education, tarbiat modares university, tehran, ir iran maliheh saeed firoozabadi the persian gulf marine biotechnology research center, bushehr university of medical sciences, bushehr, ir iran

conclusions perceived social support is the most important factor that influences health-promoting behaviors. increasing social support by enhancing self-efficacy and decreasing perceived barriers can improve health-promoting behaviors among veterans. background health-promoting behaviors can enhance physical and mental health among individuals with disability, particularly veterans. objectives...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

Journal: :caspian journal of environmental sciences 2005
a. salehi g. zahedi amiri

the field study was conducted in one district of educational-experimental forest at tehran university (kheirood-kenar forest) in the north of iran. eighty-five soil profiles were dug in the site of study and several chemical and physical soil properties were considered. these factors included: soil ph, soil texture, bulk density, organic carbon, total nitrogen, extractable phosphorus and depth ...

Journal: :Journal of Chemical Education 1959

Journal: :Journal of the American Chemical Society 1894

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