keyword
MENU ▼
Read by QxMD icon Read
search

EMF

keyword
https://www.readbyqxmd.com/read/28227437/effects-of-extremely-low-frequency-electromagnetic-fields-on-in-vitro-cellular-cultures-hela-and-cho
#1
A F Restrepo, V E Tobar, R J Camargo, E Franco, C R Pinedo, O Gutierrez, A F Restrepo, V E Tobar, R J Camargo, E Franco, C R Pinedo, O Gutierrez, C R Pinedo, E Franco, R J Camargo, V E Tobar, O Gutierrez, A F Restrepo
This paper presents the cellular proliferation effects of the exposure to extremely low frequency electromagnetic fields (ELF-EMF) on in-vitro cellular cultures HeLa and CHO. Through the magnetic stimulation system (MSS) the cells were exposed to magnetic fields with sinusoidal waveform at 50 Hz; initially for 40 minutes at intensities of 0.4 mT, 1.4 mT, 2.13 mT, 2.49 mT and 2.53 mT in parallel and perpendicular directions to the culture plates. Subsequently, the repetitive electromagnetic field (rEMF) was applied to 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28208709/human-exposure-to-electromagnetic-fields-from-parallel-wireless-power-transfer-systems
#2
Feng Wen, Xueliang Huang
The scenario of multiple wireless power transfer (WPT) systems working closely, synchronously or asynchronously with phase difference often occurs in power supply for household appliances and electric vehicles in parking lots. Magnetic field leakage from the WPT systems is also varied due to unpredictable asynchronous working conditions. In this study, the magnetic field leakage from parallel WPT systems working with phase difference is predicted, and the induced electric field and specific absorption rate (SAR) in a human body standing in the vicinity are also evaluated...
February 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28203122/evaluation-of-the-effect-of-radiofrequency-radiation-emitted-from-wi-fi-router-and-mobile-phone-simulator-on-the-antibacterial-susceptibility-of-pathogenic-bacteria-listeria-monocytogenes-and-escherichia-coli
#3
M Taheri, S M J Mortazavi, M Moradi, S Mansouri, G R Hatam, F Nouri
Mobile phones and Wi-Fi radiofrequency radiation are among the main sources of the exposure of the general population to radiofrequency electromagnetic fields (RF-EMF). Previous studies have shown that exposure of microorganisms to RF-EMFs can be associated with a wide spectrum of changes ranged from the modified bacterial growth to the alterations of the pattern of antibiotic resistance. Our laboratory at the nonionizing department of the Ionizing and Non-ionizing Radiation Protection Research Center has performed experiments on the health effects of exposure to animal models and humans to different sources of electromagnetic fields such as cellular phones, mobile base stations, mobile phone jammers, laptop computers, radars, dentistry cavitrons, magnetic resonance imaging, and Helmholtz coils...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28197174/extremely-low-frequency-electromagnetic-fields-stimulation-modulates-autoimmunity-and-immune-responses-a-possible-immuno-modulatory-therapeutic-effect-in-neurodegenerative-diseases
#4
REVIEW
Fabio Guerriero, Giovanni Ricevuti
Increasing evidence shows that extremely low frequency electromagnetic fields (ELF-EMFs) stimulation is able to exert a certain action on autoimmunity and immune cells. In the past, the efficacy of pulsed ELF-EMFs in alleviating the symptoms and the progression of multiple sclerosis has been supported through their action on neurotransmission and on the autoimmune mechanisms responsible for demyelination. Regarding the immune system, ELF-EMF exposure contributes to a general activation of macrophages, resulting in changes of autoimmunity and several immunological reactions, such as increased reactive oxygen species-formation, enhanced phagocytic activity and increased production of chemokines...
December 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/28170232/contaminant-removal-from-source-waters-using-cathodic-electrochemical-membrane-filtration-mechanisms-and-implications
#5
Junjian Zheng, Jinxing Ma, Zhiwei Wang, Shaoping Xu, T David Waite, Zhichao Wu
Removal of recalcitrant anthropogenic contaminants from water calls for the development of cost-effective treatment technologies. In this work, a novel electrochemical membrane filtration (EMF) process using a conducting microfiltration membrane as the cathode has been developed and the degradation of sulphanilic acid (SA) examined. The electrochemical degradation of SA in flow-by mode followed pseudo-first-order kinetics with the degradation rate enhanced with increase in charging voltage. Hydrogen peroxide as well as oxidants such as HO• and Fe(IV)O2+ were generated electrochemically with HO• found to be the dominant oxidant responsible for SA degradation...
February 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28163863/the-effects-of-exposure-to-low-frequency-electromagnetic-fields-in-the-treatment-of-migraine-headache-a-cohort-study
#6
Seyed Ehsan Mohammadianinejad, Manuchehr Babaei, Pedram Nazari
INTRODUCTION: Findings have indicated that increased usage of mobile phones may be concomitant with higher rate of headache attacks due to the low radiofrequency electromagnetic fields (RF-EMF). The aim of this study was to determine the effects of low RF-EMF on the treatment outcome in migraine patients. METHODS: This cohort study was performed on 114 migraine patients referred to the Neurology Clinic of Golestan Hospital in Ahvaz, Southwest Iran, from September 2014 to March 2015...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28149063/acute-effects-of-mobile-phone-radiations-on-subtle-energy-levels-of-teenagers-using-electrophotonic-imaging-technique-a-randomized-controlled-study
#7
Hemant Bhargav, T M Srinivasan, Suman Bista, A Mooventhan, Vandana Suresh, Alex Hankey, H R Nagendra
BACKGROUND: Mobile phones induce radio frequency electromagnetic field (RF-EMF) which has been found to affect subtle energy levels of adults through Electrophotonic Imaging (EPI) technique in a previous pilot study. MATERIALS AND METHODS: We enrolled 61 healthy right-handed healthy teenagers (22 males and 39 females) in the age range of 17.40 ± 0.24 years from educational institutes in Bengaluru. Subjects were randomly divided into two groups: (1) (mobile phone in ON mode [MPON] at right ear) and (2) mobile phone in OFF mode (MPOF)...
January 2017: International Journal of Yoga
https://www.readbyqxmd.com/read/28144594/effects-of-rf-emf-exposure-from-gsm-mobile-phones-on-proliferation-rate-of-human-adipose-derived-stem-cells-an-in-vitro-study
#8
D Shahbazi-Gahrouei, B Hashemi-Beni, Z Ahmadi
BACKGROUND: As the use of mobile phones is increasing, public concern about the harmful effects of radiation emitted by these devices is also growing. In addition, protection questions and biological effects are among growing concerns which have remained largely unanswered. Stem cells are useful models to assess the effects of radiofrequency electromagnetic fields (RF-EMF) on other cell lines. Stem cells are undifferentiated biological cells that can differentiate into specialized cells...
December 2016: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28135408/a-copper-based-supramolecular-nanocapsule-that-enables-straightforward-purification-of-sc3-n-based-endohedral-metallofullerene-soots
#9
Carles Fuertes-Espinosa, Cristina García-Simón, Edison Castro, Miquel Costas, Luis Echegoyen, Xavi Ribas
A self-assembled Cu(II) -based nanocapsule enables efficient and straightforward isolation of Sc3 N@C80 from arc-processed raw soot. The newly designed Cu(II) -based supramolecular nanocapsule 5⋅(OTf)8 was used to effectively entrap fullerenes and endohedral metallofullerenes (EMFs) with different affinities depending on their size and shape. Moreover, we took advantage of the sharply different entrapment abilities of the 5⋅(OTf)8 cage in the solid state versus in solution to encapsulate all the species with the exception of Sc3 N@C80 (both Ih and D5h isomers), which remains pure in solution...
January 30, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28124386/quantitative-changes-in-testicular-structure-and-function-in-rat-exposed-to-mobile-phone-radiation
#10
M Çetkin, N Kızılkan, C Demirel, Z Bozdağ, S Erkılıç, H Erbağcı
The possible effects of the electromagnetic fields (EMF) generated by mobile phones on reproductive functions have been discussed in recent years. The aim of this study was to evaluate the effects of EMF emitted from mobile phones on the rat testis morphology and histopathology using stereological techniques. We also investigated cortisol, testosterone, FSH and LH levels. A total of thirty-two (n = 32) male Wistar albino rats were used in this study. Animals were randomly divided into four groups as control (C, n = 8), sham (Sh, n = 8), mobile phone speech (Sp, n = 8) and mobile phone standby (ST by)...
January 26, 2017: Andrologia
https://www.readbyqxmd.com/read/28118155/the-effects-of-human-height-and-mass-on-the-calculated-induced-electric-fields-at-50-hz-for-comparison-with-the-emf-directive-2013-35-eu
#11
R P Findlay
A worker's height and mass can significantly affect the way in which incident low frequency electric and magnetic fields are absorbed in the body. To investigate this, several anatomically realistic human models were produced for heights between 1.56 and 1.96 m and masses between 33 and 113 kg. The human models were derived from the MAXWEL surface-based phantom, the model previously used in the EMF Directive 2013/35/EU Practical Guide to demonstrate how induced electric fields in the body are calculated. Computer simulations were carried out to calculate the low frequency EMF directive exposure limit value (ELV) quantities, i...
January 24, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28113068/symptoms-and-the-use-of-wireless-communication-devices-a-prospective-cohort-study-in-swiss-adolescents
#12
Anna Schoeni, Katharina Roser, Martin Röösli
BACKGROUND: We investigated whether radiofrequency electromagnetic fields (RF-EMF) from mobile phones and other wireless devices or by the wireless device use itself due to non-radiation related factors in that context are associated with an increase in health symptom reports of adolescents in Central Switzerland. METHODS: In a prospective cohort study, 439 study participants (participation rate: 36.8%) aged 12-17 years, completed questionnaires about their mobile and cordless phone use, their self-reported symptoms and possible confounding factors at baseline (2012/2013) and one year later (2013/2014)...
January 20, 2017: Environmental Research
https://www.readbyqxmd.com/read/28106913/efficacy-of-50%C3%A2-hz-electromagnetic-fields-on-human-epidermal-stem-cell-transplantation-seeded-in-collagen-sponge-scaffolds-for-wound-healing-in-a-murine-model
#13
Wen-Fang Bai, Wei-Cheng Xu, Hong-Xiang Zhu, Hong Huang, Bo Wu, Ming-Sheng Zhang
To explore the possible efficacy of electromagnetic fields (EMF) for skin tissue engineering, effects of EMF exposure on epidermal stem cells (ESC) seeded in collagen sponge scaffolds for wound healing in a murine model were investigated. The wound models of a full-thickness defect established with 36 7 ∼ 8-week-old nude mice were randomly divided into three groups: a control group, an ESC-only group, and an ESC with EMF exposure group (frequency of 50 Hz, magnetic induction of 5 mT, 60 min per day for 20 days)...
January 20, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28106136/long-term-exposure-to-835%C3%A2-mhz-rf-emf-induces-hyperactivity-autophagy-and-demyelination-in-the-cortical-neurons-of-mice
#14
Ju Hwan Kim, Da-Hyeon Yu, Yang Hoon Huh, Eun Ho Lee, Hyung-Gun Kim, Hak Rim Kim
Radiofrequency electromagnetic field (RF-EMF) is used globally in conjunction with mobile communications. There are public concerns of the perceived deleterious biological consequences of RF-EMF exposure. This study assessed neuronal effects of RF-EMF on the cerebral cortex of the mouse brain as a proxy for cranial exposure during mobile phone use. C57BL/6 mice were exposed to 835 MHz RF-EMF at a specific absorption rate (SAR) of 4.0 W/kg for 5 hours/day during 12 weeks. The aim was to examine activation of autophagy pathway in the cerebral cortex, a brain region that is located relatively externally...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28099802/stabilization-of-giant-fullerenes-c2-41-c90-d3-85-c92-c1-132-c94-c2-157-c96-and-c1-175-c98-by-encapsulation-of-a-large-la2c2-cluster-the-importance-of-cluster-cage-matching
#15
Shasha Zhao, Pei Zhao, Wenting Cai, Lipiao Bao, Muqing Chen, Yunpeng Xie, Xiang Zhao, Xing Lu
Successful isolation and unambiguous crystallographic assignment of a series of higher carbide cluster metallofullerenes present new insights into the molecular structures and cluster-cage interactions of endohedral metallofullerenes (EMFe). These new species are identified as: La2C2@C2(41)-C90, La2C2@D3(85)-C92, La2C2@C1(132)-C94, La2C2@C2(157)-C96 and La2C2@C1(175)-C98, respectively. This is the first report for these new cage structures except D3(85)-C92. Our experimental and theoretical results demonstrate that La2C92-106 are more inclined to exist stably in the carbide form La2C2@C90-104 rather than as the dimetallofullerenes La2@C92-106 which are rationalized by considering a synergistic effect of inserting a C2-unit into the cage which ensures strong metal-cage interactions by partially neutralizing the charges from the metal ions and by fulfilling the coordination requirement of the La3+ ions as much as possible, finally unraveling the mystery of the formation mechanism of giant fullerenes...
January 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28097161/effects-of-extremely-low-frequency-electromagnetic-field-on-expression-levels-of-some-antioxidant-genes-in-human-mcf-7-cells
#16
Hamideh Mahmoudinasab, Fatemeh Sanie-Jahromi, Mostafa Saadat
In the past three decades, study on the biological effects of extremely low-frequency electromagnetic fields (ELF-EMFs) has been of interest to scientists. Although the exact mechanism of its effect is not fully understood, free radical processes has been proposed as a possible mechanism. This study was designed to evaluate the effect of 50-Hz EMFs on the mRNA levels of seven antioxidant genes (CAT, SOD1, SOD2, GSTO1, GSTM3, MSGT1, and MSGT3) in human MCF-7 cells. The EMF exposure patterns were: 1) 5 min field-on/5 min filed-off, 2) 15 min field-on/15 min field-off, 3) 30 min field-on continuously...
June 2016: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/28096849/assessment-of-the-effects-of-extremely-low-frequency-electromagnetic-fields-on-toxoplasma-gondii
#17
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 vivo and in vivo experiments in Laboratory of Biopyhsics and Parasitology of Medical Faculty, Adnan Menderes University, Turkey, in 2010...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28092407/study-of-potential-health-effects-of-electromagnetic-fields-of-telephony-and-wi-fi-using-chicken-embryo-development-as-animal-model
#18
Henri Woelders, Agnes de Wit, Alexander Lourens, Norbert Stockhofe, Bas Engel, Ina Hulsegge, Dirkjan Schokker, Paula van Heijningen, Stefan Vossen, Dave Bekers, Peter Zwamborn
The objective of this study is to investigate possible biological effects of radiofrequency electromagnetic fields (RF-EMF) as used in modern wireless telecommunication in a well-controlled experimental environment using chicken embryo development as animal model. Chicken eggs were incubated under continuous experimental exposure to GSM (1.8 GHz), DECT (1.88 GHz), UMTS (2.1 GHz), and WLAN (5.6 GHz) radiation, with the appropriate modulation protocol, using a homogeneous field distribution at a field strength of approximately 3 V/m, representing the maximum field level in a normal living environment...
January 16, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28078855/the-impact-of-electromagnetic-field-at-a-frequency-of-50-hz-and-a-magnetic-induction-of-2-5-mt-on-viability-of-pineal-cells-in-vitro
#19
A Koziorowska, E Pasiud, M Fila, M Romerowicz-Misielak
The impact of electromagnetic fields (EMF) on the pineal gland has been described in numerous studies, but many questions still remain unanswered. The aim of the experiment described in this study was to evaluate the effect of EMF on the viability of the pineal gland cells of pig in vitro. Primary culture of the pineal gland cells has been exposed to the influence of an EMF at a frequency of 50 Hz with 1, 2 or 3 hours and for 3 hours every 2 or 3 days. After the experiment, viability of cells was assessed by MTT assay and compared to a control culture not exposed to electromagnetic fields...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078187/bioelectric-field-enhancement-the-influence-on-membrane-potential-and-cell-migration-in-vitro
#20
Marcy C Purnell, Terence J Skrinjar
Objective: The extracellular matrix consists of critical components that affect fibroblast polarization and migration. The existence of both intrinsic and extrinsic electrical signals that play essential roles in the development, physiology, regeneration, and pathology of cells was discovered over a century ago. In this study, we study how the Bioelectric Field Enhancement (BEFE) device and its generated electromagnetic field (EMF) by continuous direct current (DC) significantly affect the membrane potential and cell migration of fibroblasts in vitro...
December 1, 2016: Advances in Wound Care
keyword
keyword
45990
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"