نتایج جستجو برای: percentage of specialists
تعداد نتایج: 21165396 فیلتر نتایج به سال:
introduction: periradicular surgery is an appropriate treatment method for dental periradicular impairments. the present study was carried out to analyze the knowledge of general dentists and dental specialists about periradicular surgery. methods: this descriptive cross-sectional study was conducted on 93 general dentists and 7 dental specialists (endodontists and oral and maxillofacial surgeo...
In most southern provinces of Iran, Soil Salinity is a growing problem particularly in the irrigated agricultural areas and has been found to reduce crop yields. In order to investigate the role of pod removal in seed germination, seedling growth and antioxidant enzymes activity in annual medics (Medicago scutella L.) under salinity stress conditions, a factorial experiment was conducted at Col...
here we present our experimental results in synthesizing au-cu nano-particles with tunable localized surface plasmon resonance frequency through wet-chemical at temperature room. the reaction is performed in the presence of ascorbic acid as a reducing agent and polyvinyl pyrrolidone as capping agent via four different procedures: (1) mixture of 90% haucl4 and 10% cuso4.5h2o precursors, (2) mixt...
objectives: the percentage of vowel correct (pvc) is one of the indices in the development of articulation and phonological skills in children that can be measured with speech samples that could be extracted from the single word or connected speech tests. the aim of this study is to introduce the pvc scale in persian speaking children and investigate its validity and reliability. methods: this ...
e read with interest the insightful and balanced perspective put orth by Dr. DeMaria concerning the collective futures of specialsts involved in the care of patients with cardiovascular disease (1). lthough we agree that as new technologies are introduced and ecome incorporated into the care of patients there will be a ontinued blurring of traditional boundaries between specialists, e also beli...
Many natural and artificial systems can be described abstractly as a collection of interacting entities that must meet two requirements for survival. First, entities must maintain their individual viability through some homeostatic process that consumes resources obtained from other entities in their environment. Additionally, the system must produce a pattern of resource flows among entities t...
the main purpose of this study was to investigate experts’ perceptions of barriers to organic farming in ministry of agriculture. the population of this survey consisted of the experts in department of horticultural products, ministry of agriculture in 2008-2009 (n= 160). using of kerejcie and morgan table, 113 experts were selected through stratified random sampling method. validity of the ins...
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