نتایج جستجو برای: term 2
تعداد نتایج: 2977053 فیلتر نتایج به سال:
background: hydrogen sulfide (h 2 s) exhibits both physiological and toxicological roles in the biological systems. acute exposure to high levels of h 2 s is life threatening while long-term exposure to ambient levels of h 2 s elicits human health effects. objective: to study the harmful effects of long-term exposure to low levels of h 2 s on human blood cells. methods: 110 adult workers from i...
Objective : The aim of this study was to examine the relationship between time use methylphenidate and anxiety in children with attention-deficit hyperactivity disorder (ADHD). Metod: In this cross-sectional study was investigated 32 children (ages 8–12) with ADHD in tree groups1- non medication , 2-short-term use methylphenidate(1-3 month) and long-term use of this medication(more of 3 month)...
The purpose of this study is to analyze the performance of Back propagation algorithm with changing training patterns and the second momentum term in feed forward neural networks. This analysis is conducted on 250 different words of three small letters from the English alphabet. These words are presented to two vertical segmentation programs which are designed in MATLAB and based on portions (1...
Review and classification of electric load forecasting (LF) techniques based on artificial neuralnetworks (ANN) is presented. A basic ANNs architectures used in LF reviewed. A wide range of ANNoriented applications for forecasting are given in the literature. These are classified into five groups:(1) ANNs in short-term LF, (2) ANNs in mid-term LF, (3) ANNs in long-term LF, (4) Hybrid ANNs inLF,...
Pancreatic β-cells dysfunction and impairment of insulin action usually leads to hyperglycemia. Punica granatum L. is a well-known traditional herbal remedy in Iran due to its positive effects on ameliorating blood glucose homeostasis. In this study, we aimed to investigate and compare the pomegranate fruits aqueous extract (PE) on glucose and lipid metabolisms in normal and Alloxan-induced dia...
background: the incomplete maturation of brain in preterm children results in long-term neurodevelopmental impairment. this study aimed to investigate the static balance function in children with a history of preterm birth. methods: participants were 31 preterm children including 21 moderately preterm (mpt), 10 very preterm (vpt), and 20 term children aged 5.5 and 6.5 years. the cervical vestib...
ازآنجا که براساس قوانین آژانس بین المللی انرژی اتمی قرار براین شده است که سوخت رآکتورهای هسته ای تحقیقاتی از مقدار غنی بودن حدود 90 درصد (heu) به حدود 20 درصد (leu) تقلیل یابد، تجدید نظر کلی در گزارش های تحلیلی ایمنی این راکتورها تحت شرایط جدید ضروری گردیده است . درطی چندسال گذشته مطالعات گسترده ای درزمینه های مختلف تغییرات فیزیکی، ترموهیدرولیکی و ایمنی این راکتور درارتباط با این تغییر غنای سوخ...
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