نتایج جستجو برای: mobile phone use

تعداد نتایج: 1930278  

Ahmadi Jalali Moghaddam M Bahadori MH Jabbari F Najafzadeh HA Rahimi S,

Background: In recent years, the widespread use of microwave producing instruments specially mobile phones; result in growing concern regarding the possible effects associated with these waves on human health. Some studies highlight the possible health hazards of electromagnetic fields (EMF), while others contest the hypothesis of biological impact of EMF. The aim of this study was to evaluate ...

Introduction: In recent years, the rapidly increasing use of mobile phone operating nearby the human head has caused public concern for its effects on human health. The FDTD methodology is widely used for calculation of the effects of electromagnetic fields on human body. Methods and Materials: In this paper, first a dual band patch antenna structure (GSM-900 and DCS 1800), which is located i...

2009
Tiwonge Davis Manda Jo Herstad

This paper presents results from a study on mobile phone use to connect two rural hospitals in Malawi with community health workers (CHWs), the hospitals work with. Mobile phone use at the hospitals has helped reduce the need for face-to-face communication to permit patient information exchange, meetings and appointments scheduling, as well as work coordination. On the other hand mobile phone u...

Journal: :modares journal of medical sciences: pathobiology 2013
mohammad reza bigdeli mehdi rahnama

objective: electro-magnetic radiation (emr) is emitted from mobile phones. various researches have shown relationships between mobile phone emr exposure to cancer and neurologic damages. this study aims to investigate the effects of mobile phone emr on brain antioxidant enzyme activity and the learning process. methods: rat pups and their dames were exposed to emr for 3 h per day from p2 to p1...

Journal: :journal of biomedical physics and engineering 0
s. m. j. mortazavi professor of medical physics, medical physics department, school of medicine, shiraz university of medical sciences, shiraz, iran m. motamedifar associate professor of microbiology, department of bacteriology, school of medicine and shiraz hiv/aids research center (sharc), shiraz university of medical sciences, shiraz, iran a. r. mehdizadeh assistant professor of medical physics, medical physics department, school of medicine, shiraz university of medical sciences, shiraz, iran g. namdari student research committee, school of medicine, shiraz university of medical sciences, shiraz, iran m. taheri lecturer of microbiology, laboratory sciences department, school of allied medical sciences, shiraz university of medical sciences, shiraz, iran

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 infect...

Journal: :Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society 2009
Motoharu Takao Susumu Takahashi Masayoshi Kitamura

Mobile phone use is banned or regulated in some circumstances. Despite recognized safety concerns and legal regulations, some people do not refrain from using mobile phones. Such problematic mobile phone use can be considered to be an addiction-like behavior. To find the potential predictors, we examined the correlation between problematic mobile phone use and personality traits reported in add...

Journal: :The International journal of neuroscience 2007
Martijn Arns Gilles Van Luijtelaar Alex Sumich Rebecca Hamilton Evian Gordon

The present study employs standardized data acquired from the Brain Resource International Database to study the relationship between mobile phone usage, personality, and brain function (n = 300). Based on the frequency and duration of mobile phone usage, three groups were formed. The findings suggest a subtle slowing of brain activity related to mobile phone use that is not explained by differ...

This quantitative, qualitative study investigates the usage of mobile phone applications in teaching and learning processes. The study aims to identify the benefits, difficulties, and resolutions of using mobile phone applications. The study was conducted in the English Department at Hebron University at the second semester of the academic years 2015/2016. The study focuses on the Business Engl...

Ali Nahvi, Ebrahim Hajizadeh, Hassan Asilian Mahabadi, Mostafa Pouya Kian, Seyedeh Monavar Yazdi,

Objectives: Most studies have performed to identify the affective variables in using mobile phone by drivers based on interview and questionnaire. In this study call answering rate while driving was investigated in a sample of male postgraduate students of a university in Tehran by a driving simulator. Methods: Six driving scenario designed differing in risk of driving. Answer rate to mobile...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
اصغر باقری استادیار دانشکده کشاورزی دانشگاه محقق اردبیلی مرضیه رازقی دانشجوی کارشناسی ارشد رشته توسعه روستایی دانشکده کشاورزی دانشگاه زنجان ابوطالب حسین پور عضو هیات علمی دانشگاه علوم کشاورزی و منابع طبیعی ساری

the goal followed in this study was to investigate the barriers that hinder the application of mobile phone technology being communication in agricultural education, from the view points of agricultural extension educators of ardabil province. survey research method was used throughout the study. the line and staff experts comprised the statistic population of the study. a sample consisting of ...

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