نتایج جستجو برای: techniques and procedures

تعداد نتایج: 16876752  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

Abstract This study was conducted with the objective of investigating the practice of teaching early reading comprehension. The study was carried out in sixty-six Grade 2 government primary schools found in SNNPR State in Gedeo zone,Ethiopia, in the academic year 2015. Sixty-six English language teachers were subjects of the study. The study employed mixed method, specifically QUANT-QUAL one. D...

Journal: :basic and clinical neuroscience 0
amir dezfouli .neuro cognitive laboratory, iranian national center for addiction studies, hamed ekhtiari address: no. 669, south karegar ave, tehran, 13366-16357, iran. tel: +9821-55421177, +98912-1885898 email: [email protected] azarakhsh mokri .neuro cognitive laboratory, iranian national center for addiction studies, clinical department. iranian national center for addiction studies,tehran university of medical science.

a b s t r a c t abstract- methamphetamine has rapidly become more prominent in iran, which is now second most common drug behind heroin. moreover, initiation of methamphetamine abuse is a major cause of failure of opioid treatment programs such as methadone maintenance treatment. this calls for development of more effective treatment methods for methamphetamine addiction, and especially develop...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1386

چکیده ندارد.

Journal: :journal of comprehensive pediatrics 0
mahsa motavaf department of genetics, tarbiat modares university, tehran, ir iran majid sadeghizadeh department of genetics, tarbiat modares university, tehran, ir iran; department of genetics, faculty of biological sciences, tarbiat modares university, p. o. box: 14115-175, tehran, ir iran. tel: +98-2182884409, fax: +98-2182883463سازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university)

context prenatal testing aims to identify fetal chromosomal and genetic disorders prior to delivery. current invasive procedures such as amniocentesis and chorionic villus sampling (cvs) pose a risk to mother and fetus and such diagnostic procedures are available only to high-risk pregnancies, which limits aneuploidy detection rate. the identification of cell-free fetal dna (cffdna) in maternal ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...

Foodstuffs analysis is very important due to population growth and increasing consumer demand for safety and nutritional excellence. The Analysis of different compounds in foodstuffs is so difficult without using sample preparation techniques. Traditional techniques require large amounts of toxic organic solvents. As a result, they are not only expensive but also environmentally unfriendly and ...

Journal: :journal of dental research, dental clinics, dental prospects 0
soodabeh kimyai dental and periodontal research center, school of dentistry, tabriz university of medical sciences fatemeh pournaghi-azar mehdi daneshpooy mehdi abed kahnamoii farnaz davoodi

background. this study evaluated the effect of two prophylaxis techniques on the marginal gap of ci v resin-modified glass-ionomer restorations. methods. standard cl v cavities were prepared on the buccal surfaces of 48 sound bovine mandibular incisors in this in vitro study. after restoration of the cavities with gc fuji ii lc resin-modified glass-ionomer, the samples were randomly assigned to...

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