نتایج جستجو برای: and 75

تعداد نتایج: 16851365  

2009
David B. Hitchcock Frank Yates

Seventy-five years ago, Yates (1934) presented an article introducing his continuity correction to the χ test for independence in contingency tables. The paper also was one of the first introductions to Fisher’s exact test. We discuss the historical importance of Yates and his 1934 paper. The development of the exact test and continuity correction are studied in some detail. Subsequent disputes...

2003
Mark D. Smith

planned pregnancy among these countries is strikingly reflected in the disparity in abortion rates. The overall U. S. abortion rate (25.9 abortions per 1,000 women aged 15–44) is 1.7 times that of Canada (15.3 per 1,000) and more than four times that of the Netherlands (6.0 per 1,000).5 Differences in pregnancy rates, however, are not so marked. Again, the United States reports the highest rate...

2015
Zhufeng Wu Sheng Wang Xuemei Peng Chunying Lu Xiaodong Ye Baojian Wu

The neuromuscular blocking agent cisatracurium is frequently used adjunctively in anesthesia to facilitate endotracheal intubation and to provide muscle relaxation during surgery. We aimed to determine the pharmacokinetics (PK)/pharmacodynamics (PD) of cisatracurium in patients with congenital heart defects (CHDs), such as ventricular septal defects and atrial septal defects, and to assess the ...

Journal: :Regards économiques 2018

Journal: :Prismet 2020

Journal: :Vivat Academia 2009

Journal: :Physik Journal 1970

Journal: :British Journal of Psychiatry 2009

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید