نتایج جستجو برای: frequency percentage
تعداد نتایج: 608915 فیلتر نتایج به سال:
AIMS To assess the reliability of percentage ideal weight for height (%WFH) as a measure in children. METHODS Forty two dietitians calculated %WFH of six children. Eleven of the 42 repeated the calculations. RESULTS Interexaminer estimates varied by 16.5 to 40 percentage points (mean 27.8). Intraexaminer variability was also large. CONCLUSIONS %WFH is an unreliable measure of nutritional ...
Studies of expressive speech have shown that discrete emotions such as anger, fear, joy, and sadness can be accurately communicated, also cross-culturally, and that each emotion is associated with reasonably specific acoustic characteristics [8]. However, most previous research has been conducted on acted emotions. These certainly have something in common with naturally occurring emotions but m...
Background: Acetaminophen is the most commonly used analgesic and fever-lowering agent that is prescribed in a high percentage of patients. Due to the high prevalence of the administration of this drug, even a small percentage of errors in prescription can be significant and have important implications. The aim of the present study was to determine the frequency of supratherapeutic dosing of ac...
in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...
ABSTRACT The frequency of sexual reproduction has a profound effect on the population structure and the adaptive potential of a facultatively sexual parasite. Little is known about the relationship of quantitative host resistance to the frequency of sex in pathogens. We sampled over 5,000 fungal fruiting bodies from eight different wheat cultivars over a 3-year period. The cultivars possessed v...
Background: Car accidents are among the first 10-leading causes of death worldwide that impose large expenses on societies. Variety of factors including alteration in traffic pattern or observation of traffic rules in Ramadan may influence the frequency of car accidents. The present study was conducted to compare car accidents in Ramadan with other months during a 4-year period (1997-2000). Ma...
EEG recordings reflect the gross electrical activity emanating from synaptic currents of individual neurons across large cortical areas. During periods of cortical activation, waking, and higher EEG frequencies, neurons display increased excitability and exhibit more asynchronous discharge. The activity of a number of subcortical neurotransmitter systems from several brain regions outside the t...
Introduction: In Iran, few studies have been carried out on the frequency of drowning cases in the country's southern and northern coasts. The aim of this study is to evaluate the frequency of drowning cases in the provinces with northern and southern coastal margins from 2011 to 2014 and to examine the risk factors related to drowning mortality. Methods: This cross-sectional analytical study ...
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