نتایج جستجو برای: fisher exact test and t
تعداد نتایج: 17035620 فیلتر نتایج به سال:
Pearson's chi-squared, the likelihood-ratio, and Fisher-Freeman-Halton's test statistics are often used to test the association of unordered r x c tables. Asymptotical, exact conditional, or exact conditional with mid-p adjustment methods are commonly used to compute the p-value. We have compared test power and significance level for these test statistics and p-value calculations in small sampl...
Introduction: Infantile colic has been defined as episodes of excessive and persistent crying without known medical cause. Kangaroo mother care is a new method for case of newborn with several advantages. This study designed for evolution KMC and its effect on infantile colic. Methods: This study is a randomized controlled trial, from 1th may 2008 to 1th may 2009 a total of 70 children, aged 3-...
abstract objectives gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this type of treatment is very precise and controlled that is done in 54 steps in 3 speech situations consisted of monologue, reading and conversation. this study aimed to examine the effects of gilcu treatment method on reduction of speech dysfluency of school-age...
background : there is an association of celiac disease (cd) with several gastrointestinal illnesses. we aimed to determine the prevalence of cd in patients with inflammatory bowel disease (ibd) to evaluate the value of the routine serological tests for cd in these patients. methods : patients with ibd underwent screening test for cd. the screening test was based on iga anti-ttg antibody e...
تومورهای نورو اندوکرین گوارشی،از دستگاه نورواندوکرین منتشر در دستگاه گوارش منشأ می گیرند واز سلول های مولد آمین و اسید با طرح های هورمونی مختلفی تشکیل شده اند که با تولید پپتید هایی سبب ایجاد سندرم های هورمونی مشخصی می شوند. تشخیص زود هنگام تومور های نورواندوکرین به خصوص نوع درجه پایین آنها می تواند در پیش آگهی بیماران نقش به سزایی داشته باشد و در مراحل اولیه می تواند بدون علامت باشد. لذا در صد...
مقدمه:نئوپلازی داخل اپیتلیالی یک نوع تغییر پیش سرطانی وسرطان سرویکس یک نئوپلاسم بدخیم بامنشأ سلولهای گردن رحم میباشد و در مراحل اولیه می تواند بدون علامت باشند.این ضایعات توسط تیپهای خاصی از hpvایجاد میگردند.انجام برنامه های غربالگری توانسته است شیوع وبروز آنها را تا حدودی کاهش دهد. تشخیص زود هنگام آنها می تواند در پیش آگهی بیماران نقش به سزایی داشته باشد. لذا در صدد برآمدیم فراوانی نسبی نئوپلا...
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
language learning courseware has been receiving growing attention by english educators since its advent. a variety of softwares have been designed by software designers and resorted to by language educators to supplement language textbooks. this experimental study investigated how the application of computerized version of language textbooks and the reception of the entire course through comput...
Th e aim of the study was to determine the influence of RET, p27 and cyclin D1 on regional lymph node metastases in papillary microcarcinoma. The analysis included 70 patients with papillary thyroid microcarcinoma that underwent surgery at Split University Hospital Center between 1999 and 2001. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded tissue by the RET, p27 and cy...
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