نتایج جستجو برای: before and after challenge
تعداد نتایج: 17059307 فیلتر نتایج به سال:
vaccination of livestock with effective vaccine could be one of the control methods for hydatid cyst. in this study a new recombinant vaccine (eg95) from new zealand was prepared and used. thirty health sheep from the same race and identical age and sex were selected. there was no history of any past vaccination or disease in selected animals. animals were randomly categorized to four groups. o...
after the soviet union dissolution, a chaotic period was begun in the russia. russia lost its glory and felt disgrace. the first group of elites came to power under yeltsin; they tried to re-define russia’s identity as a european country and build a foreign policy on this baseline. therefore russia tried to become closer with the west especially with the u.s. according to their view the sovie...
آموزش واژه با بهره گیری از یادگیری تلفیقی و نرم افزارهای چند رسانه ای در کلاس های آموزش زبان انگلیسی
the purpose of this study was to investigate the impact of blended learning and multimedia softwares on iranian efl students vocabulary learning. in addition, the present study tried to examine the extent to which multimedia softwares can be applied into efl classes in iran. it also attempted to find out students attitudes toward using these softwares. to this end, 87 iranian efl learners at el...
Background: Cardiovascular mortality and morbidity are high in chronic renal failure (CRF) patients. Increased dispersion of QT intervals is known to predispose to ventricular arrhythmias and sudden cardiac death. This study was conducted to assess the effect of hemodialysis (HD) on corrected QT (QTc) intervals and their dispersions (QTd) in chronic hemodialyzed patients. Methods: Fifty-eight p...
Introduction: Olfactory loss in patients with chronic rhinosinusitis has been measured by different methods. However, the results have been variable, and it is not clear whether endoscopic sinus surgery significantly improves olfactory function. This study was performed to evaluate the influence of endoscopic sinus surgery on olfactory function in patients with chronic rhinosinusitis. Material...
Abstract Introduction: Considering the importance of screening for diagnosis of tuberculosis (TB) infection among medical students and the necessity of annual TB tests and effectiveness of preventive programs, there is an ever increasing need for undertaking research to investigate the effect of residence in hospital on the risk of tuberculosis infection among students, and planning strategies...
Abstract Introduction: Emergency Department (ED) is the most important ward of hospital which its function can have enormous effect on function of other wards and patients' satisfaction. One of the most important criteria in evaluation of ED is the duration of time spent by patients for receiving diagnostic and treatment services. Prolonged waiting and visiting time in ED reduce the quality of ...
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