نتایج جستجو برای: extremely low frequency electromagnetic fields

تعداد نتایج: 1915865  

Journal: :journal of paramedical sciences 0
elaheh nooshinfar cancer research center, shahid beheshti university of medical sciences, tehran mostafa rezaei-tavirani proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran soheila khodakarim proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran

electromagnetic field (emf) radiation affects cellular and brain chemistry and function, resulting in deleterious effects such as free radicals formation, impaired dna repair, reduced melatonin and blood brain barrier protection, and defects on learning and memory and other higher brain functions. in this paper the effects of low frequency emf of 50- and 217 hz, ranges often associated with com...

Journal: :iranian journal of parasitology 0
sercin ozlem-caliskan hatice ertabaklar mehmet dincer bilgin sema ertug

background: the effects of extremely low frequency electromagnetic fields (elf-emf) on toxoplasma gondii have not been explained yet. the aim of this study was to assess the possible effects of elf-emf on growth, survival time and viability of toxoplasma gondii . in addition, the life span of toxoplasma infected animals was investigated. methods: sixty adult male balb/c mice were used for in vi...

بلوری, بهرام, نیکبخت, فرناز, کهزاد, سوسن,

Background: Extremely low frequency (0-300 Hz) fields from power lines, electronic equipment and medical devices, have been reported to produce various biological effects. Global system for mobile (GSM) is most largely used in everybody's life. This system utilizes a low frequency band as well as a high frequency range of electromagnetic field. This study investigated the effects of 217 Hz elec...

Journal: :Electromagnetic biology and medicine 2007
Edoardo Rossi Maria Teresa Corsetti Samir Sukkar Claudio Poggi

Side effects of chemo-radiotherapy reduce the quality and also the survivability of patients. The consequent fatigue and infections, related to myelodepression, act to reduce the dose-intensity of the protocol. Late side effects of chemo-radiotherapy include secondary tumours, acute myeloid leukemias and cardiotoxicity. Side effects of chemotherapy are related to oxidative stress produced by th...

Journal: :International journal of occupational medicine and environmental health 2003
Eleonora Cermáková

OBJECTIVES The aim of the work was to present the results of measurements of extremely low frequency electromagnetic fields (ELF EMF), namely the magnetic flux density, inside infant incubators, and to compare these results with the data published by other authors who point out to a possible association between leukemia or other diseases observed in newborns kept in incubators after the birth a...

اکبر زاده, آرش, بهشتی, محمد حسین, حاجی زاده, روح اله, رضوی اصل, سید محمد حسن, فرهنگ دهقان, سمیه, محمدی, حمزه, مهری, احمد, کوهپایی, علی‌رضا,

Introduction: Nowadays, exposure to extremely low frequency (ELF) magnetic field has been interested in many studies due to possible effects on human physical-mental health. Therefore, this study aimed to assess arc welders’ exposure to extremely low frequency magnetic field and to determine its relationship with the secretion of paratormone (PTH) hormone and mood states. Material and Method...

Journal: :Environmental Health Perspectives 1991
M N Bates

This paper reviews the epidemiologic evidence that low frequency electromagnetic fields generated by alternating current may be a cause of cancer. Studies examining residential exposures of children and adults and studies of electrical and electronics workers are reviewed. Using conventional epidemiologic criteria for inferring causal associations, including strength and consistency of the rela...

2006
Leeka Kheifets Abdelmonem A. Afifi Riti Shimkhada

INTRODUCTION The association between exposure to extremely low-frequency electric and magnetic fields (ELF) and childhood leukemia has led to the classification of magnetic fields by the International Agency for Research on Cancer as a "possible human carcinogen." This association is regarded as the critical effect in risk assessment. Creating effective policy in light of widespread exposure an...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Hynek Burda Sabine Begall Jaroslav Cervený Julia Neef Pavel Nemec

Resting and grazing cattle and deer tend to align their body axes in the geomagnetic North-South direction. The mechanism(s) that underlie this behavior remain unknown. Here, we show that extremely low-frequency magnetic fields (ELFMFs) generated by high-voltage power lines disrupt alignment of the bodies of these animals with the geomagnetic field. Body orientation of cattle and roe deer was r...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید