نتایج جستجو برای: صدک percentile
تعداد نتایج: 12849 فیلتر نتایج به سال:
سابقه و هدف: شیرخواران کوچک نسبت به سن حاملگی (small for gestational age; sga) در معرض خطر وزن یا قد نهایی پایین هستند. هدف از این مطالعه تعیین فراوانی جهش رشدی در شیرخواران sga می باشد. مواد و روش ها: این مطالعه مقطعی به بررسی سیر رشد نوزادان sga متولد شده در شهرستان کاشان در سال های 89-1388 می پردازد. شیرخواران با وزن یا قد کمتر از صدک 3 منحنی رشد به عنوان sga شناسایی شدند. شرح حال کاملی...
an increase, even moderate, in global temperature is expected to result in a change in frequency of extreme weather events like drought, heavy rainfall and storms. the study of extreme events is difficult due to the fact that it is difficult to find long-term homogeneous data series. also the delimitation of extreme events is not univocal since a parameter value that would be defined as an extr...
the purpose of this study is to find the percentiles of fuzzy numbersand to demonstrate their applications, which include finding weightedmeans, dispersion indices, and the percentile intervals of fuzzy numbers. thecrisp approximations of fuzzy numbers introduced in this paper are new andinteresting for the comparison of fuzzy environments, such as a variety of economic,financial, and engineeri...
low birth weight ( lbw, birth weight<2500g) is a significant health problem of children. many studies have made it apparent that there is a direct relationship between low birth weight and infant motality. one of the most important measurements to prevent children morbidity is growth monitoring and the present study was set up to compare the growth indexes of 2 year old children born with low w...
RESULTS: Patients undergoing implant-based reconstruction, subjected to the new protocol, demonstrated a decreased length of stay. Utilizing standardized surveys, improvements in pain control were demonstrated with a percentile ranking change from 88 to 99 percentile, pain management summary score improvement from 62 to 99 percentile, and improvement in pain control ranking from 27 to 99 percen...
داده های تن سنجی نیاز اساسی برای تطبیق تجهیزات ماشین ها با قابلیت ها و مقدورات انسان است. در این پژوهش، برخی از تجهیزات کنترل و فضای کار تراکتورهای متداول در استان فارس از نظر ارگونومیکی بررسی شد. ابتدا داده های تن سنجی مورد نیاز، برای حدود 250 نفر از کاربران تراکتورها به طور تصادفی انتخاب و اندازه گیری گردید. سپس برخی مشخصات تراکتورهای متداول در استان فارس با داده هایی نظیر تن سنجی صدک های پنج...
RESULTS: Patients undergoing implant-based reconstruction, subjected to the new protocol, demonstrated a decreased length of stay. Utilizing standardized surveys, improvements in pain control were demonstrated with a percentile ranking change from 88 to 99 percentile, pain management summary score improvement from 62 to 99 percentile, and improvement in pain control ranking from 27 to 99 percen...
The asymptotic formula for the variance of a percentile estimate is inversely proportional to the square of the probability density function evaluated at that percentile. In this note we show, for small and moderate sample sizes, that the estimate of the variance can have a moderate to large coefficient of variation even when the form of the density is known. When the density must be estimated ...
The Burr type XII has been studied for various applications of lifetime modelings. However, control charts related to the Burr type XII percentiles have not been seen in the literature. In this paper, three control charts for the Burr type XII percentiles are investigated. An extensive Monte Carlo simulation study is conducted to compare among the Shewhart-type chart, and parametric bootstrap c...
OBJECTIVE Our aim was to examine the degree to which changes in BMI percentile reflect changes in body fat and lean body mass during childhood and how age and gender affect these relationships. METHODS This analysis used serial data on 494 white boys and girls who were aged 8 to 18 years and participating in the Fels Longitudinal Study (total 2319 observations). Total body fat (TBF), total bo...
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