نتایج جستجو برای: 092 with no unit

تعداد نتایج: 10447820  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

1999
Chen Y. Tung Kenneth W. Mahaffey Maarten L. Simoons

Background—Stroke occurs concurrently with myocardial infarction (MI) in '30 000 US patients each year. This number is expected to rise with the increasing use of thrombolytic therapy for MI. However, no data exist for the economic effect of stroke in the setting of acute MI (AMI). The purpose of this prospective study was to assess the effect of stroke on medical resource use and costs in AMI ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ادبیات و زبانهای خارجی 1392

abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...

Journal: :The Journal of Sexual Medicine 2023

Abstract Introduction Sexuality is complex and multifaceted, broadly composed of psychological, physiological, interpersonal, identity, social/political phenomena. The term “sexuality” used inconsistently in the literature, both how it defined by researchers measured. Some define sexuality a narrow, heteronormative, genital-focused way that negates subjective experiences individuals, turn, affe...

Journal: :journal of dental materials and techniques 0
iman iman parisay department of pediatric dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) zahra zahra bahrololomi department of pediatric dentistry, shahid sadoughi university of medical sciences, yazd, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید صدوقی یزد (shahid sadooghi university of medical sciences) maryam maryam ghafournia department of pediatric dentistry, esfahan university of medical sciences, esfahan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) ali-asghar ali-asghar solaimani department of pediatric dentistry, international branch of tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) alireza alireza boruziniat restorative dentistry, dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

introduction: the aim of this study was to evaluate the influenceof different light curing systems and curing times on the micro-hardness of aresin modified glass ionomer. methods: forty two samples of resinmodified glass ionomer (rmgi) were prepared using stainless steel cylindrical mold(8 × 2 mm) and randomly divided into six groups of seven. three groups werecured with a quartz tungsten halo...

2001
Irenilza de Alencar Nääs

Animal production has moved quite rapidly to a consolidated structure of fewer, larger farms, ranches, and animal feeding units in both developed and developing countries. Driven by economies of scale arising from steady advances in technology, the trend shows no sign of slowing. This new structural concept and features increased concentration of large-scale livestock and specialty crop product...

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