نتایج جستجو برای: which were selected using convenience sampling method
تعداد نتایج: 7870259 فیلتر نتایج به سال:
BACKGROUND Artemisinin-based combination therapies are recommended by the World Health Organisation (WHO) as first-line treatment for Plasmodium falciparum malaria, yet medication must be of good quality for efficacious treatment. A recent meta-analysis reported 35% (796/2,296) of antimalarial drug samples from 21 Sub-Saharan African countries, purchased from outlets predominantly using conveni...
we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...
aim and background: perfectionism is known as a potential maladaptive personality trait with significant psychological consequences. the purpose of this study was to investigate the relations between stress and positive and negative perfectionism in normal subjects. methods and materials: using convenience sampling method, 162 adults who aged 18-50 years old and did not have a history of any sp...
this study is aimed at comparing life expectancy, resilience and differentiation between adolescents of single-child and multi-child families living in khorramabad, iran. this is a causal-comparative study and the statistical population consisted of all the male and female adolescent students in the middle and high schools of khorramabad in the academic year 2015-2016. the sample included 150 s...
BACKGROUND Healthcare providers are competitive, owing to heightened customers' awareness and expectations of health care services. OBJECTIVE The aim of this study was to determine the relationship between customer value creation and loyalty with mediator trust and customer satisfaction. METHODS This is a cross sectional survey study. Participants were 196 patients referred to private hospi...
objectives: the gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this is a precise and controlled treatment that is done in 54 steps in 3 speech situations consisting of monologue, reading, and conversation. this study aimed at examining the effects of gilcu treatment method on the reduction of speech dysfluency of school-aged childre...
abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...
abstract the present research is prepared to study the culture of tea consuming among iranian. the case group which was statistically used for this study was people of lahijan , about four hundred wich were chosen according to their age , gender , education and occupation , randomly selected to fill the questionnaire . then the data collected through the questionnaire was analyzed according ...
در این تحقیق، تنوع ژنتیکی جمعیت آرتمیا اورمیانا و آرتمیا فرانسیسکانا ی موجود در ایران با استفاده از 5 جفت آغازگر ریزماهواره ای (af-b105tail، af-a136، apdq03tail، apdq04tail و apdq05tail) ویژه ی آرتمیا فرانسیسکانا و آرتمیا پارتنوژنتیکا بررسی شد. از 50 سیست آرتمیا ی هر یک از این دو جمعیت به صورت انفرادی dna با روش گلوله ی داغ استخراج شد. با استفاده از آغازگر ها ی پنج گانه و از طریق واکنش زنجیره ا...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
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