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Showing results for: ELF

Efficacy of extremely low-frequency magnetic field in fibromyalgia pain: A pilot study.

Research RF Safe Research Library Jan 1, 2016

This pilot randomized study evaluated systemic extremely low-frequency magnetic field (ELF-MF) therapy versus sham in 37 women with fibromyalgia using a crossover sequence. The abstract reports significant short-term reductions in pain and improvements in fibromyalgia-related symptom and function questionnaires…

The Effects of Exposure to Low Frequency Electromagnetic Fields in the Treatment of Migraine Headache: A Cohort Study.

Research RF Safe Research Library Jan 1, 2016

This cohort study followed 114 migraine patients and assessed self-reported use of mobile phones, Wi-Fi devices, and fixed-line telephones as RF-EMF sources. Over a 3-month period, migraine frequency and severity were reported as significantly correlated with higher mobile phone and Wi-Fi use, while fixed-line…

Analysis of personal and bedroom exposure to ELF-MFs in children in Italy and Switzerland.

Research RF Safe Research Library Jan 1, 2016

This exposure assessment study measured personal and bedroom extremely low-frequency magnetic field (ELF-MF) exposures in 172 children (5–13 years) in Switzerland and Italy. Geometric mean exposures were low on average (0.04 μT personal; 0.05 μT bedroom), but were higher among children living within 100 m of a…

Residential exposure to extremely low-frequency magnetic fields and risk of childhood leukaemia, CNS tumour and lymphoma in Denmark

Research RF Safe Research Library Nov 3, 2015

This Danish case-control study assessed residential extremely low-frequency magnetic fields (ELF-MF) calculated from 50 6400 kV facilities and risk of childhood leukaemia, CNS tumour, and malignant lymphoma from 1968 62003. For 1987 62003, the RR for the combined outcome at 0.4 bcT vs

Effects of extremely low-frequency electromagnetic fields (ELF-EMF) exposure on B6C3F1 mice

Research RF Safe Research Library May 5, 2015

This long-term animal study exposed mice to a 50 Hz magnetic field (500 mG) prenatally and then through 15.5 months of life to assess tumor-related outcomes and fertility-related measures. Exposed mice had lower body weights and showed no increase in liver or lung tumor incidence. However, exposed female mice had a…

2015:19 Recent Research on EMF and Health Risk - Tenth report from SSM’s Scientific Council on Electromagnetic Fields, 2015

Research RF Safe Research Library Mar 1, 2015

This Swedish Radiation Safety Authority (SSM) Scientific Council report provides an annual overview of the previous year’s research on electromagnetic fields (EMF) to support the Authority’s risk assessment and policy work. It updates key topics including ELF magnetic fields and childhood leukaemia, mobile phones,…

A cross-sectional study on oxidative stress in workers exposed to extremely low frequency electromagnetic fields

Research RF Safe Research Library Jan 1, 2015

This cross-sectional study compared oxidative stress and genotoxicity biomarkers between 310 ELF-EMF-exposed inspection workers and 300 logistical staff controls. The authors report no statistically significant differences in antioxidant-related measures (T-AOC, GPx, SOD) or MDA, and no significant differences in…

What is harmful for male fertility: cell phone or the wireless Internet?

Research RF Safe Research Library Jan 1, 2015

This cross-sectional study of men attending an infertility clinic assessed associations between self-reported mobile phone and wireless Internet use and semen parameters. Mobile phone usage period was not significantly associated with sperm count or morphology, while motility showed a borderline association. Higher…

Occupational exposure to extremely low-frequency magnetic fields and electrical shocks and acute myeloid leukemia in four Nordic countries

Research RF Safe Research Library Jan 1, 2015

This Nordic case-control study evaluated whether occupational exposure to extremely low-frequency magnetic fields (ELF-MF) or risk of electrical shocks is associated with acute myeloid leukemia (AML). It included 5,409 AML cases and 27,045 matched controls across four countries, with exposures assigned using…

The Role of Depression and Attachment Styles in Predicting Students' Addiction to Cell Phones.

Research RF Safe Research Library Jan 1, 2015

This descriptive correlational study examined whether depression and attachment styles predict cell phone addiction among university students in Iran. Using self-report measures in 100 students, regression analysis found depression and avoidant attachment style were the strongest predictors of cell phone…

Enhanced liver fibrosis (ELF) test in obese children with ultrasound-proven liver steatosis.

Research RF Safe Research Library Jan 1, 2015

This cross-sectional study evaluated the Enhanced Liver Fibrosis (ELF) test in 58 obese children stratified by ultrasound evidence of liver steatosis. Children with steatosis had higher liver enzymes and a higher ELF value than those with normal ultrasound findings. Despite these differences, the authors report that…

Using mobile phones and social media to facilitate education and support for rural-based midwives in South Africa.

Research RF Safe Research Library Jan 1, 2015

This cross-sectional survey assessed how rural-based advanced midwives in South Africa perceive and use mobile phones for education and professional activities. Among 56 respondents, most reported frequent use of mobile phone functions to support work and learning despite low self-rated technology competence and…

Gamma radiation and magnetic field mediated delay in effect of accelerated ageing of soybean.

Research RF Safe Research Library Jan 1, 2015

This study evaluated gamma radiation and static magnetic field treatments on soybean seeds stored for six months and then subjected to accelerated ageing. The authors report that certain gamma doses (3–5 kGy) and magnetic field strengths (100–200 mT) helped maintain seed protein/oil characteristics and antioxidant…

The effects of different intensities, frequencies and exposure times of extremely low-frequency electromagnetic fields on the growth of Staphylococcus aureus and Escherichia coli O157:H7.

Research RF Safe Research Library Jan 1, 2015

This in vitro study examined whether extremely low-frequency electromagnetic fields (ELF-EMF) affect growth of Staphylococcus aureus and Escherichia coli O157:H7. Bacterial cultures were exposed to sinusoidal homogeneous ELF-EMF at 2 or 4 mT, with frequencies of 20, 40, or 50 Hz, for 1–6 hours, and CFU were compared…

Experimental model for ELF-EMF exposure: Concern for human health.

Research RF Safe Research Library Jan 1, 2015

This in vitro study examined whether extremely low frequency EMF exposure alters MCP-1 expression in several human cell lines. Cells were exposed to a 50 Hz sinusoidal field at 1 mT (rms), and the authors report that MCP-1 expression was modified in a cell-type-dependent manner. The findings are described as…

Effects of extremely low frequency electromagnetic fields on paraoxonase serum activity and lipid peroxidation metabolites in rat

Research RF Safe Research Library Aug 13, 2014

This randomized animal experiment examined whether 60 Hz extremely low frequency magnetic field (ELF-MF) exposure alters oxidative stress-related biomarkers in 75 Wistar rats. The authors report increased lipid peroxidation markers after both single and 14-day exposures, alongside changes in antioxidant-related…

Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex

Research RF Safe Research Library Apr 29, 2014

This cross-sectional study measured ELF magnetic flux density in a petrochemical complex substation environment and assessed workers' sleep quality (PSQI) and general health (GHQ). It reports significant differences between case and control groups, with more sleep disorder and poorer health status in the case group.…

Melatonin protects rat cerebellar granule cells against electromagnetic field-induced increases in Na(+) currents through intracellular Ca(2+) release

Research RF Safe Research Library Jan 1, 2014

This in vitro study examined extremely low-frequency electromagnetic field (ELF-EMF) effects on voltage-gated sodium (Nav) currents in rat cerebellar granule cells and whether melatonin modifies these effects. The abstract reports that 60 minutes of ELF-EMF exposure increased Nav current density, and that melatonin…

Assessment of the neurotoxic potential of exposure to 50Hz extremely low frequency electromagnetic fields (ELF-EMF) in naïve and chemically stressed PC12 cells

Research RF Safe Research Library Jan 1, 2014

This in vitro study tested acute (30 min) and sub-chronic (48 h) 50 Hz ELF-EMF exposure up to 1000 µT in naïve and chemically stressed PC12 cells. Across assays of Ca2+ homeostasis, ROS production, and membrane integrity, the study reports no consistent or measurable neurotoxic effects under the tested conditions.…

Occupational exposure to intermediate frequency and extremely low frequency magnetic fields among personnel working near electronic article surveillance systems

Research RF Safe Research Library Jan 1, 2014

This workplace measurement study assessed intermediate frequency (IF) and extremely low frequency (ELF) magnetic field exposure among cashiers working near electronic article surveillance (EAS) systems in Finnish stores. Typical seated exposures were reported as well below limits, but short-term exceedances of ICNIRP…

Occupational extremely low-frequency magnetic field exposure and selected cancer outcomes in a prospective Dutch cohort

Research RF Safe Research Library Jan 1, 2014

This prospective Dutch cohort (120,852 participants; 17.3 years follow-up) examined occupational ELF magnetic field exposure and incidence of several cancers. No associations were reported for lung, breast, or brain cancer across multiple exposure metrics. In men, high occupational exposure was associated with…

No effects of power line frequency extremely low frequency electromagnetic field exposure on selected neurobehavior tests of workers inspecting transformers and distribution line stations versus controls

Research RF Safe Research Library Jan 1, 2014

This study evaluated whether occupational 50 Hz ELF-EMF exposure near transformers and distribution power lines affects performance on several computer-based neurobehavior tests. Spot measurements found some electric-field locations above a national occupational standard, while all magnetic-field spots were below the…

Extremely low-frequency magnetic fields of transformers and possible biological and health effects

Research RF Safe Research Library Jan 1, 2014

This study measured leakage extremely low-frequency (ELF) magnetic fields around a transformer located on the bottom floor of a three-floor apartment building in Istanbul. The measurements were evaluated against international exposure standards, and the authors report exposures higher than the IARC threshold magnetic…

Occupational exposure to electromagnetic fields of uninterruptible power supply industry workers

Research RF Safe Research Library Jan 1, 2014

This workplace exposure assessment reports extensive spot measurements of ELF electric and magnetic fields in a UPS factory across test areas, production lines, and power substations. The highest fields were observed in test areas (up to 992.0 V/m and 215.6 µT). The authors state that measured levels were below…

Risk of neuroblastoma, maternal characteristics and perinatal exposures: the SETIL study

Research RF Safe Research Library Jan 1, 2014

This population-based Italian case-control study (153 neuroblastoma cases; 1044 controls) evaluated maternal characteristics and perinatal exposures, including measured ELF-MF home exposure during pregnancy. The authors report no association between ELF-MF exposure and neuroblastoma risk. Increased risks were…

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