Correlates of mobile phone use in HIV care: Results from a cross-sectional study in South Africa.
Research
RF Safe Research Library
Jan 1, 2015
This cross-sectional study surveyed 883 HIV-infected patients on ART in Soweto, South Africa, to identify demographic correlates of using mobile phones as reminder tools. Older age, female gender, and lower education were associated with lower use of phones for clinic appointment reminders. Older age and lower income…
The Impact of Using Cell Phones After Light-Out on Sleep Quality, Headache, Tiredness, and Distractibility Among Students of a University in North of Iran.
Research
RF Safe Research Library
Jan 1, 2015
This cross-sectional study surveyed 358 university students about cell phone use after lights-out and related symptoms. Sixty percent reported late-night phone use, which was associated with insomnia, and initially with low energy, tiredness, and headache. After controlling for stressful events, only the association…
The effect of electromagnetic radiation emitted by display screens on cell oxygen metabolism - in vitro studies.
Research
RF Safe Research Library
Jan 1, 2015
This in vitro study exposed human blood platelet suspensions to 1 kHz electromagnetic fields at 150 or 220 V/m for 30 or 60 minutes. The authors report increased ROS and MDA (at 220 V/m, 30 min) and decreased antioxidant enzyme activities (SOD-1 and catalase), with the largest changes at 220 V/m for 60 minutes. They…
New hybrid frequency reuse method for packet loss minimization in LTE network.
Research
RF Safe Research Library
Jan 1, 2015
This engineering study addresses inter-cell interference in LTE networks as a driver of packet loss between base stations and mobile stations. It examines Soft Frequency Reuse (SFR) and implements a new hybrid frequency reuse method with greater total system bandwidth than SFR while keeping per-cell bandwidth the…
Analysis of DPPH inhibition and structure change of corn peptides treated by pulsed electric field technology.
Research
RF Safe Research Library
Jan 1, 2015
This laboratory study evaluated how pulsed electric field (PEF) processing affects antioxidant activity and structure of 10–30 kDa corn peptides. Antioxidant activity was assessed via DPPH inhibition and optimized using response surface methodology. Under reported optimal conditions (10 mg/mL, 15 kV/cm, 2,000 Hz),…
Effect of marination in gravy on the radio frequency and microwave processing properties of beef.
Research
RF Safe Research Library
Jan 1, 2015
This engineering/food science study measured dielectric constant (ε'), dielectric loss factor (ε″), and power penetration depth in beef and gravy preparations across 27–1,800 MHz and 20–130 °C. The dielectric properties generally decreased with increasing frequency, and penetration depth decreased with increasing…
Electromagnetic field exposure assessment in Europe radiofrequency fields (10 MHz-6 GHz).
Research
RF Safe Research Library
Jan 1, 2015
This paper provides an overview of published RF EMF exposure measurements in Europe and characterizes population exposure patterns. Across included spot and long-term measurement studies, reported mean electric field strengths were generally low (mostly
The use of low-level electromagnetic fields to suppress atrial fibrillation.
Research
RF Safe Research Library
Jan 1, 2015
This animal study tested whether extremely low-level pulsed EMF (0.034 μG, 0.952 Hz) could suppress induced atrial fibrillation in 17 anesthetized dogs. EMF applied to cervical vagal trunks or across the chest was reported to suppress neural firing in the anterior right ganglionated plexi. The authors report that EMF…
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.…
Exposure to radio-frequency electromagnetic fields from broadcast transmitters and risk of childhood cancer: a census-based cohort study
Research
RF Safe Research Library
Apr 1, 2014
This census-based cohort study in Switzerland examined modeled RF-EMF exposure from broadcast transmitters and childhood cancer risk using two cohort approaches. Across analyses, no association was reported for all cancers or childhood leukemia. Findings for CNS tumors were inconsistent, and the incidence density…
Association between mobile phone use and semen quality: a systemic review and meta-analysis
Research
RF Safe Research Library
Jan 1, 2014
This systematic review and meta-analysis assessed whether mobile phone use or radiofrequency exposure is associated with semen quality. Across included studies, the meta-analysis found no adverse effects in human studies, but reported detrimental effects on sperm motility and viability in vitro and harmful effects on…
Effect of mobile telephones on sperm quality: a systematic review and meta-analysis
Research
RF Safe Research Library
Jan 1, 2014
This 2014 systematic review and random-effects meta-analysis evaluated whether RF-EMR from mobile phones affects human sperm quality. Across 10 studies (1492 samples), exposure was associated with reduced sperm motility and reduced viability, while findings for sperm concentration were more equivocal. The abstract…
2.45-GHz microwave irradiation adversely affects reproductive function in male mouse, Mus musculus by inducing oxidative and nitrosative stress
Research
RF Safe Research Library
Jan 1, 2014
This animal study exposed 12-week-old male Swiss strain mice to non-thermal low-level 2.45-GHz microwave radiation for 2 hours per day over 30 days (SAR 0.018 W/kg). The abstract reports reduced sperm count and viability, testicular structural changes, lower 3β-HSD activity and plasma testosterone, and increased…
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 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…
Neurodegenerative disease and magnetic field exposure in UK electricity supply workers
Research
RF Safe Research Library
Jan 1, 2014
This cohort study examined mortality from Alzheimer’s disease, motor neurone disease, and Parkinson’s disease among 73,051 UK electricity supply workers from 1973 to 2010. Occupational magnetic-field exposure was assessed using detailed calculations and analyzed using Poisson regression across lifetime, distant…
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…
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…
Pulsed electromagnetic field and exercises in patients with shoulder impingement syndrome: a randomized, double-blind, placebo-controlled clinical trial
Research
RF Safe Research Library
Jan 1, 2014
This double-blind randomized placebo-controlled trial evaluated pulsed electromagnetic field (PEMF) therapy followed by a standardized shoulder strengthening exercise program in adults with shoulder impingement syndrome (N=56). The active PEMF group improved in pain and function from baseline across follow-ups, while…
Effect of 950 MHz UHF electromagnetic radiation on biomarkers of oxidative damage, metabolism of UFA and antioxidants in the livers of young rats of different ages
Research
RF Safe Research Library
Jan 1, 2014
This animal study exposed rats of different early-life ages to 950 MHz UHF electromagnetic radiation for 30 minutes per day (SAR 1.0–1.3 W/kg) across gestation and/or early postnatal periods. The authors report no evidence of oxidative stress by TBARS or protein carbonyls, but report changes in fatty acid…
Radiofrequency reduction of inferior turbinates in allergic and non allergic rhinitis.
Research
RF Safe Research Library
Jan 1, 2014
This institutional study evaluated radiofrequency ablation for inferior turbinate hypertrophy in 200 patients with allergic or non-allergic rhinitis. Most patients reported improvement in nasal symptoms, with relatively few reporting persistent nasal obstruction or other symptoms at follow-up. The authors report no…
Toward a Quantitative Understanding of the Electric Field in Thermal Metal Oxidation and a Self-Consistent Wagner Theory.
Research
RF Safe Research Library
Jan 1, 2014
This engineering/physical chemistry study develops an analytical model and uses computer simulations to describe the electric field in oxide films during thermal metal oxidation. It reports that the electrostatic potential drop across the bulk oxide is often limited to about kBT/e, suggesting most of a larger overall…
Extraction of Cations from an Ionic Liquid Droplet in a Dielectric Liquid under Electric Field.
Research
RF Safe Research Library
Jan 1, 2014
This laboratory study investigates various ionic liquids using an electrophoresis of a charged droplet method in a dielectric liquid under an applied electric field. While charged droplets typically bounce between electrodes, the authors report that some ionic liquids exhibit a retreating behavior. They interpret…
Radiodensitometric Assessment of the Effect of Pulsed Electromagnetic Field Stimulation Versus Low Intensity Laser Irradiation on Mandibular Fracture Repair: A Preliminary Clinical Trial.
Research
RF Safe Research Library
Jan 1, 2014
This preliminary prospective clinical trial compared pulsed electromagnetic field stimulation (PEMF) and low intensity laser irradiation (LILI) as adjuncts to mandibular fracture repair assessed by clinical union and radiodensitometric bone density. Clinical outcomes (segment stability and occlusion) were…
Assessment of auditory evoked potential in long-term mobile phone users.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional study assessed auditory brainstem responses in 173 long-term mobile phone users aged about 17–39 years. The authors report significant differences in ABR wave and interpeak latencies across age groups, with prolonged average wave I–V latencies in the 20–29 year group. They interpret the latency…