Archive

1057 posts

Showing results for: NO

Conformational changes of β-thalassemia major hemoglobin and oxidative status of plasma after in vitro exposure to extremely low-frequency electromagnetic fields: An artificial neural network analysis.

Research RF Safe Research Library Jan 1, 2021

This in vitro study exposed blood samples from β-thalassemia major patients and matched healthy donors (n=12 each) to 50 Hz ELF-EMF at 0.5 and 1 mT for 1–2 hours. The authors report that two-hour exposure induced significant oxidative changes in β-thalassemia major samples and examined protein/Hb structural features…

Pulsed and Discontinuous Electromagnetic Field Exposure Decreases Temozolomide Resistance in Glioblastoma by Modulating the Expression of O-Methylguanine-DNA Methyltransferase, Cyclin-D1, and p53.

Research RF Safe Research Library Jan 1, 2021

This in vitro study evaluated 50 Hz, 70 G electromagnetic field exposure in combination with temozolomide (TMZ) in T98 and A172 glioblastoma cell lines. The authors report that EMF plus TMZ increased cell death and reduced migration potential compared with controls. They also report increased p53 gene expression and…

Comparing the Effects of Long-term Exposure to Extremely Low-frequency Electromagnetic Fields With Different Values on Learning, Memory, Anxiety, and β-amyloid Deposition in Adult Rats.

Research RF Safe Research Library Jan 1, 2021

This animal study exposed adult male rats to 50 Hz ELF-EMF at 1, 100, 500, or 2000 μT for 1 hour/day over two months and assessed behavior and brain markers. The authors report increased memory retention (higher step-through latency) alongside increased anxiety-like behavior (reduced open-arm entries), particularly…

Translocation of silica nanospheres through giant unilamellar vesicles (GUVs) induced by a high frequency electromagnetic field.

Research RF Safe Research Library Jan 1, 2021

This in vitro study used giant unilamellar vesicles (GUVs) to examine effects of an 18 GHz electromagnetic field on membrane behavior. The authors report increased membrane permeability after exposure, inferred from internalisation of 23.5 nm hydrophilic silica nanospheres. Complementary molecular dynamics…

First Identification of the Effects of Low Frequency Electromagnetic Field on the Micromolecular Changes in Adipose Tissue-Derived Mesenchymal Stem Cells by Fourier Transform Infrared Spectroscopy.

Research RF Safe Research Library Jan 1, 2021

This in vitro study exposed adipose tissue-derived mesenchymal stem cells to a continuous 50 Hz electromagnetic field at 1.5 mT for 24, 48, or 72 hours and assessed micromolecular changes using FTIR spectroscopy. The authors report the largest FTIR spectral differences versus control in nucleic acids and proteins…

Improved Calculation Method of Coupling Factors for Low-Frequency Wireless Power Transfer Systems.

Research RF Safe Research Library Jan 1, 2021

This engineering/methods study addresses computational artifacts that can affect coupling factor calculations for localized EMF exposure assessment in IEC 62311/62233, particularly below 10 MHz. The authors propose using the 99.99th percentile rather than the maximum internal quantity to mitigate abnormal peaks from…

Towards Environmental RF-EMF Assessment of mmWave High-Node Density Complex Heterogeneous Environments.

Research RF Safe Research Library Jan 1, 2021

This paper presents an RF-EMF exposure assessment combining measurements and deterministic 3D ray-launching simulations in a large indoor public library with high node density. It considers mmWave 5G FR2 at 28 GHz and Wi-Fi 802.11ay at 60 GHz under realistic operation conditions with varying user distributions. The…

Artificial Neural Network-Based Uplink Power Prediction From Multi-Floor Indoor Measurement Campaigns in 4G Networks.

Research RF Safe Research Library Jan 1, 2021

This paper describes multi-floor indoor LTE measurement campaigns aimed at enabling assessment and monitoring of RF-EMF exposure, with emphasis on uplink exposure via mobile phone transmit power. Because uplink transmit power is not directly available from off-the-shelf devices, the authors propose an artificial…

Electromagnetic Field Stimulation Attenuates Phasic Nociception after Complete Spinal Cord Injury in Rats.

Research RF Safe Research Library Jan 1, 2021

This animal study evaluated whole-body extremely low-frequency EMF stimulation after thoracic complete spinal cord injury in adult male rats. The authors report reduced nociceptive behaviors (hyperalgesia/allodynia) from week 6 onward and restoration of spinal reflexes by week 8. They also report lower glutamate at…

Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits.

Research RF Safe Research Library Jan 1, 2021

This animal and in vitro study evaluated a composite osteochondral scaffold with bone marrow mesenchymal stem cells (BMSCs) combined with low-frequency electromagnetic field (EMF) stimulation. The authors report that EMF promoted BMSC proliferation and chondrogenic differentiation in vitro, partly via PI3K/AKT/mTOR…

A New Treatment for Stretch Marks and Skin Ptosis with Electromagnetic Fields and Negative Pressure: A Clinical and Histological Study.

Research RF Safe Research Library Jan 1, 2021

This clinical and histological study evaluated a combined electromagnetic fields and negative pressure treatment (V-EMF) for stretch marks and skin hypotonia. Sixty women aged 25–45 underwent 6 or 8 weekly sessions, with documentation via pictures, patient satisfaction, and biopsies. The authors report histological…

Effects of excessive use of mobile phone technology in India on human health during COVID-19 lockdown.

Research RF Safe Research Library Jan 1, 2021

This cross-sectional online survey study (n=122) examined increased dependency on mobile phone technology and electronic gadgets in India during the COVID-19 lockdown. Most participants reported increased usage and perceived increased risk of health problems from excessive use. The authors conclude that technology…

Effects of Radiofrequency Electromagnetic Field (RF-EMF) exposure on male fertility and pregnancy and birth outcomes: Protocols for a systematic review of experimental studies in non-human mammals and in human sperm exposed in vitro.

Research RF Safe Research Library Jan 1, 2021

This paper presents protocols for a systematic review of experimental studies assessing RF-EMF exposure (100 kHz–300 GHz) and outcomes related to male fertility and pregnancy/birth effects. The review will cover three evidence streams: non-human mammal male reproductive outcomes, human sperm exposed in vitro, and in…

Effects induced by a 50 Hz electromagnetic field and doxorubicin on Walker-256 carcinosarcoma growth and hepatic redox state in rats.

Research RF Safe Research Library Jan 1, 2021

This animal study compared 50 Hz extremely low-frequency EMF exposure with doxorubicin (and their combination) in Walker-256 carcinosarcoma-bearing rats, assessing tumor growth and liver redox-related outcomes. DOX and DOX+EMF were reported to inhibit tumor growth more than EMF alone, though EMF alone also showed an…

Modulation of Crystallinity through Radiofrequency Electromagnetic Fields in PLLA/Magnetic Nanoparticles Composites: A Proof of Concept.

Research RF Safe Research Library Jan 1, 2021

This materials proof-of-concept study explored using radiofrequency EMF to heat magnetic nanoparticles dispersed in PLLA to modulate polymer properties. Heating was monitored by infrared camera, and polymer changes were assessed by differential scanning calorimetry and nanoindentation. The authors report that EMF…

Electromagnetic Field Exposure in Kindergarten Children: Responsive Health Risk Concern.

Research RF Safe Research Library Jan 1, 2021

This exposure assessment measured EMF emission levels around 24 kindergartens in relation to nearby underground transmission lines using an EMDEX II meter. The abstract reports maximum mean EMF levels of 13.5 mG around kindergartens and 17.7 mG from the UGTL point to kindergartens, with a significant association…

Modelling and Evaluation of the Absorption of the 866 MHz Electromagnetic Field in Humans Exposed near to Fixed I-RFID Readers Used in Medical RTLS or to Monitor PPE.

Research RF Safe Research Library Jan 1, 2021

This study modelled SAR in humans near fixed multi-antenna UHF RFID readers operating at 866 MHz, representing RTLS and PPE-monitoring use scenarios. The modelling suggests that at 5 cm distance, SAR may warrant consideration against international exposure limits aimed at preventing thermal effects when effective…

Exposure to long-term evolution radiofrequency electromagnetic fields decreases neuroblastoma cell proliferation via Akt/mTOR-mediated cellular senescence.

Research RF Safe Research Library Jan 1, 2021

This in vitro study examined LTE RF-EMF exposure effects on SH-SY5Y neuroblastoma cells. The authors report reduced cell proliferation and a G0/G1 cell-cycle delay after 1760 MHz exposure at 4 W/kg for 4 hr/day over 4 days. They report no marked DNA damage signal (γH2AX) and no apoptosis activation, but increased…

Wi-fi related radiofrequency electromagnetic fields (RF-EMF): a pilot experimental study of personal exposure and risk perception.

Research RF Safe Research Library Jan 1, 2021

This pilot experimental study tested whether different types of information (basic text, precautionary information, or personal RF-EMF exposure measurements) affect perceptions of Wi-Fi (2.4 GHz) RF-EMF. Risk perception and exposure perception did not differ by the type of information provided, although receiving…

Radiofrequency EMF irradiation effects on pre-B lymphocytes undergoing somatic recombination.

Research RF Safe Research Library Jan 1, 2021

This in vitro study exposed developing pre-B lymphocytes undergoing V(D)J recombination to low-intensity RF EMFs for 48 hours across 720–1224 MHz. The authors report a frequency- and dose-dependent decrease in recombination, with stronger reductions around 950–1000 MHz at relatively low power densities. γH2AX levels…

Up-regulation of miR-144 and miR-375 in the human gastric cancer cell line following the exposure to extremely low-frequency electromagnetic fields.

Research RF Safe Research Library Jan 1, 2021

This in vitro study exposed AGS human gastric cancer cells to 50 Hz ELF magnetic fields at 0.2 or 2 mT for 18 hours (continuous or intermittent). The authors report reduced cell viability versus control and up-regulation of miR-144 and miR-375 during exposure. They also report miR levels decreased 18 and 36 hours…

Exposure to RF-EMF Alters Postsynaptic Structure and Hinders Neurite Outgrowth in Developing Hippocampal Neurons of Early Postnatal Mice.

Research RF Safe Research Library Jan 1, 2021

This animal and primary neuron culture study exposed early postnatal mice to whole-body RF-EMF (SAR 4.0 W/kg) for 5 hours/day from P1 to P28. The authors report reductions in dendritic spine measures (notably mushroom-type spines), decreased glutamate receptor expression in mushroom-type spines, and lower BDNF…

Modern health worries and idiopathic environmental intolerance attributed to electromagnetic fields are associated with paranoid ideation.

Research RF Safe Research Library Jan 1, 2021

This cross-sectional online survey examined whether paranoid ideation is associated with modern health worries and idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF). Paranoid ideation was positively associated with modern health worries and with IEI-EMF status, even after controlling…

Nonionizing Electromagnetic Field: A Promising Alternative for Growing Control Yeast.

Research RF Safe Research Library Jan 1, 2021

This laboratory study examined radiofrequency EMF exposure between 1 and 5.9 GHz as a method to control yeast growth relevant to food spoilage. The authors report reduced yeast viability at all tested frequencies and note that antenna-to-sample distance affected the outcome. Electron microscopy findings are described…

Non-thermal membrane effects of electromagnetic fields and therapeutic applications in oncology.

Research RF Safe Research Library Jan 1, 2021

This review examines temperature-independent (non-thermal) effects of RF and microwave electromagnetic fields, emphasizing antiproliferative effects relevant to oncology. It summarizes preclinical and clinical literature on conventional RF hyperthermia and amplitude-modulated RF hyperthermia and argues that evidence…

← Prev Page 22 / 43 Next →