نتایج جستجو برای: بستر mobile
تعداد نتایج: 188195 فیلتر نتایج به سال:
Background: Previous studies have shown that exposure to electromagnetic fields produced by magnetic resonance imaging or mobile phones can lead to increased microleakage of dental amalgam.Objective: The aim of the present study was to investigate the effect of electromagnetic field of a commercial dental light cure device and a common GSM mobile phone on microleakage of amalgam restorations.Ma...
The purpose of this study was to investigate the relationship between mobile phone harmful use and internet addiction with the emotional divorce of female teachers in Kermanshah. The statistical population of this study included all married female teachers in Kermanshah city in 1969-97. Using multi-stage cluster sampling, 269 people were selected as sample based on Morgan's table. The questionn...
Introduction: User interfaces are a crucial factor in ensuring the success of mobile applications. Mobile Educational Applications not only provide flexibility in learning, but also allow learners to learn at any time and any place. The purpose of this article is to investigate the effective factors affecting the design of the user interface in mobile educational applications. Methods: Quantita...
800x600 background: nowadays, mothers are continuously exposed to different sources of electromagnetic fields before and even during pregnancy. it has recently been shown that exposure to mobile phone radiation during pregnancy may lead to adverse effects on the brain development in offspring and cause hyperactivity. researchers have shown that behavioral problems in laboratory animals which ...
introduction: the mobile phone is viewed as an important communication tool and has become an integral part of the iranian society and they are increasingly using the mobile phone rather than the fixed line telephone as a way to keep in touch with their family, friends, colleagues and business associates. today, mobile phones are equipped with other features that allow further communication and...
طراحی مناسب و موفق یک ستون جاذب، مستلزم پیشبینی تغییرات زمانی غلظت جریان خروجی یا همان منحنی رخنه است که با بهرهگیری از مدلسازی فرایند جذب امکانپذیر است. به این منظور، آزماییشهایی با عبور جریان محلولهای استاندارد با غلظت 75 و 150 میلیگرم در لیتر نیترات و آب آلودهی یکی از چاههای استان گیلان از ستون جاذب حاوی رزین آنیونی purolite a-400 انجام شد. نمونهبرداری از آب خروجی ستون در زمانها...
Introduction: The use of mobile communication systems has dramatically increased over the past decade. Although many studies have been performed to determine the effect of radio frequency (RF) but less attention has been paid to the possible biological impact of exposure to extremely low frequency (ELF) components. The objective of this study is two folds. One is to design the ...
Problematic use of mobile phones in adolescents is very high and increasing. Therefore, the present research aimed to investigate the role of difficulty in emotion regulation and impulsivity (five-factor model) in predicting problematic mobile use in adolescents. This study was descriptive form type of correlation. The research population was the secondary high school students of Urmia city in ...
Objective(s): Nowadays, the electromagnetic field-emitting devices are used routinely in our lives. Controversial reports exist concerning the effects of mobile radiofrequency (RF) on different parts of the body, especially stress hormones. The main goal of the present work was to study the long-term effects of mobile RF900 MHz exposure with special focus on the adrenal gland pathophysiology an...
Background: Pre-exposure to radiofrequency radiations of mobile phones would significantly increase the survival rate of exposed animals compared to those exposed to a lethal dose of gamma radiation alone. Stimulation of the immune system is believed to be a key mechanism for the induction of this phenomenon, the so-called “adaptive response.†The immune system protects organisms against in...
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