نتایج جستجو برای: 24th interim meeting
تعداد نتایج: 99111 فیلتر نتایج به سال:
PURPOSE The aim of this study was to evaluate the efficiency of MR cisternography (MRC) in the diagnosis of idiopathic normal-pressure hydrocephalus (INPH) and in the prediction of the response to shunt treatment. MATERIALS AND METHODS Thirty-six patients with the diagnosis of "probable INPH" were included in the study group and 15 asymptomatic age-matched individuals were included in the con...
BACKGROUND Interim analyses are used in clinical trials in order to enable early decisions for medical, ethical, and economic reasons. However, it appears unfeasible to stop a trial during such an interim analysis. New patients will thus enter the trial while the interim analysis is ongoing. Moreover, depending on the event kinetics of the specific disease, the trial design, and the correspondi...
The aim of the present research was to evaluate the growth rate of the weight and body measurements of pheasants reared up to the 24th week of life, fed with all-mash mixtures. In the 3rd, 8th, 12th , 16th, 20th and 24th week of life the birds were weighed individually and their body measurements were measured based on which the growth rate indices of the traits researched were calculated. It w...
PURPOSE Assessing impact of poor accrual on premature trial closure requires a relevant metric. We propose defining accrual sufficiency on apparent ability to address primary endpoints (PE) rather than attaining accrual targets. EXPERIMENTAL DESIGN All phase III trials open January 1, 1993, to December 31, 2002, by five U.S. oncology Clinical Trials Cooperative Groups (CTCG) were evaluated fo...
اتمسفر از عوامل تاثیرگذار و محدود کننده دقت، در داده های سنجش از دور از جمله، داده های راداری است. با توجه به اینکه سنجنده های راداری از طول موج بلند بهره می برند، دامنه داده های راداری کمتر تحت تاثیر اتمسفر بوده و مقدار این خطا در دامنه امواج رادار، قابل صرف نظر کردن است. اما تغییر ضریب شکست موج در طول مسیر و خطای ایجاد شده در فاز موج راداری به سبب این تغییر، انکارناپذیر است. داده های فاز ...
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