keyword
MENU ▼
Read by QxMD icon Read
search

EMF

keyword
https://www.readbyqxmd.com/read/29674805/ectomycorrhizal-and-endophytic-fungi-associated-with-alnus-glutinosa-growing-in-a-saline-area-of-central-poland
#1
Dominika Thiem, Agnieszka Piernik, Katarzyna Hrynkiewicz
Alnus glutinosa (black alder) is a mycorrhizal pioneer tree species with tolerance to high concentrations of salt in the soil and can therefore be considered to be an important tree for the regeneration of forests areas devastated by excessive salt. However, there is still a lack of information about the ectomycorrhizal fungi (EMF) associated with mature individuals of A. glutinosa growing in natural saline conditions. The main objective of this study was to test the effect of soil salinity and other physicochemical parameters on root tips colonized by EMF, as well as on the species richness and diversity of an EMF community associated with A...
2018: Symbiosis
https://www.readbyqxmd.com/read/29670503/mobile-phone-chips-reduce-increases-in-eeg-brain-activity-induced-by-mobile-phone-emitted-electromagnetic-fields
#2
Diana Henz, Wolfgang I Schöllhorn, Burkhard Poeggeler
Recent neurophysiological studies indicate that exposure to electromagnetic fields (EMFs) generated by mobile phone radiation can exert effects on brain activity. One technical solution to reduce effects of EMFs in mobile phone use is provided in mobile phone chips that are applied to mobile phones or attached to their surfaces. To date, there are no systematical studies on the effects of mobile phone chip application on brain activity and the underlying neural mechanisms. The present study investigated whether mobile phone chips that are applied to mobile phones reduce effects of EMFs emitted by mobile phone radiation on electroencephalographic (EEG) brain activity in a laboratory study...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29656243/different-permeabilization-patterns-of-splenocytes-and-thymocytes-to-combination-of-pulsed-electric-and-magnetic-field-treatments
#3
Vitalij Novickij, Auksė Zinkevičienė, Justinas Valiulis, Jurgita Švedienė, Algimantas Paškevičius, Eglė Lastauskienė, Svetlana Markovskaja, Jurij Novickij, Irutė Girkontaitė
Genetic manipulation of T cells is frequently inefficient, however, when combined with physical methods (i.e. electroporation) a promising alliance with immunotherapy can be formed. This study presents new data on permeabilization of murine thymocytes and splenocytes as a T cell model using pulsed electric (PEF) and electromagnetic field (EMF). The 300ns, 500ns, 2μs and 100μs pulse bursts in a broad range of PEF 0-8kV/cm were applied separately and in combination with 3.3T, 0.2kV/cm EMF pulses. The permeabilization efficiency was evaluated using fluorescent dye (YO-PRO-1) and flow cytometry...
April 10, 2018: Bioelectrochemistry
https://www.readbyqxmd.com/read/29617363/pre-exposure-to-50-hz-electromagnetic-fields-enhanced-the-antiproliferative-efficacy-of-5-fluorouracil-in-breast-cancer-mcf-7-cells
#4
Qi Han, Rui Chen, Fangjie Wang, Sha Chen, Xiongshan Sun, Xiao Guan, Yao Yang, Bingjie Peng, Xiaodong Pan, Jinfang Li, Weijing Yi, Peng Li, Hongwei Zhang, Dongfang Feng, An Chen, Xiaohui Li, Shuhui Li, Zuoming Yin
Resistance to 5-fluorouracil (5-FU) and its induced immune suppression have prevented its extensive application in the clinical treatment of breast cancer. In this study, the combined effect of 50 Hz-EMFs and 5-FU in the treatment of breast cancer was explored. MCF-7 and MCF10A cells were pre-exposed to 50 Hz-EMFs for 0, 2, 4, 8 and 12 h and then treated with different concentrations of 5-FU for 24 h; cell viability was analyzed by MTT assay and flow cytometry. After pre-exposure to 50 Hz-EMFs for 12 h, apoptosis and cell cycle distribution in MCF-7 and MCF10A cells were detected via flow cytometry and DNA synthesis was measured by EdU incorporation assay...
2018: PloS One
https://www.readbyqxmd.com/read/29611025/expressions-of-some-antioxidant-genes-in-sh-sy5y-cells-treated-with-%C3%AE-lapachone-morphine-and-electromagnetic-field
#5
Hamideh Mahmoudinasab, Mostafa Saadat
β-Lapachone (β-Lap), morphine (Mor), and electromagnetic field (EMF) generate reactive oxygen species. The goal of the present study was to examine the effects of Mor and EMF, in combination with β-Lap on the cell growth inhibition and expression of several antioxidant genes. The 0.50 mT intensity of 50 Hz EMF and two exposure conditions ("15 min field-on/15 min field-off" and "30 min field-on continuously") on SH-SY5Y cells were used. The effects of Mor and EMF, in combination with β-Lap on cell growth inhibition and the expression levels of several antioxidant genes (NQO1, NQO2, SOD1, SOD2, CAT, GSTO1, GSTM2, GSTM3, GSTP1, MGST1, MGST3) in SH-SY5Y cells were measured...
April 2, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29605834/electromagnetic-radiation-and-behavioural-response-of-ticks-an-experimental-test
#6
Blažena Vargová, Igor Majláth, Juraj Kurimský, Roman Cimbala, Michal Kosterec, Piotr Tryjanowski, Łukasz Jankowiak, Tomáš Raši, Viktória Majláthová
Factors associated with the increased usage of electronic devices, wireless technologies and mobile phones nowadays are present in increasing amounts in our environment. All living organisms are constantly affected by electromagnetic radiation which causes serious environmental pollution. The distribution and density of ticks in natural habitats is influenced by a complex of abiotic and biotic factors. Exposure to radio-frequency electromagnetic field (RF-EMF) constitutes a potential cause altering the presence and distribution of ticks in the environment...
March 31, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29590658/effects-of-fifty-hertz-electromagnetic-fields-on-granulocytic-differentiation-of-atra-treated-acute-promyelocytic-leukemia-nb4-cells
#7
Alfredo Errico Provenzano, Stefano Amatori, Maria Gemma Nasoni, Giuseppe Persico, Sergio Russo, Anna Rita Mastrogiacomo, Alessandro Gambarara, Mirco Fanelli
BACKGROUND/AIMS: Life on Earth is constantly exposed to electromagnetic fields (EMFs) and the effects induced by EMFs on biological systems have been extensively studied producing different and sometimes contradictory results. Extremely low-frequency electromagnetic fields (ELF-EMFs) have shown to play a role in regulating cell proliferation and differentiation, although how EMFs influence these processes remains unclear. Human acute promyelocytic leukemia (APL) cells are characterized by the arrest of differentiation at the promyelocytic stage due to epigenetic perturbations induced by PML/RARα fusion protein (Promyelocytic Leukemia protein - PML/Retinoic Acid Receptor alpha - RARα)...
March 23, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29584465/electromagnetic-field-pretreatment-of-sinapis-alba-seeds-improved-cadmium-phytoextraction
#8
Piotr Bulak, Lesia Lata, Andrzej Plak, Dariusz Wiącek, Wacław Strobel, Anna Walkiewicz, Stanisław Pietruszewski, Andrzej Bieganowski
It was hypothesized that electromagnetic field (EMF) pretreatment of white mustard (Sinapis alba L.) seeds could increase the accumulation of non-essential, pollutant heavy metals such as cadmium (Cd) in shoots. Seeds of white mustard were treated with either 60 or 120 mT of alternating EMF (50 Hz) for 1 minute and then grown in a Petri dish in the presence of Cd, in comparison to the control (seeds grown without EMF pretreatment). Biomass production and content of calcium (Ca) and Cd in seedling shoots were measured...
March 21, 2018: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29576808/important-parameters-for-optimized-metal-nanoparticles-aided-electromagnetic-field-emf-effect-on-cancer
#9
Lawrence Ochoo, Charles Migwi, John Okumu
Background: A number of experimental research findings for the metal nanoparticles (NPs)-mediated EMF photothermal therapy of cancer cells show an intriguing trend of the NPs' size-dependent efficacy. This is a phenomenon we find to trend with the light absorption bandwidth behavior (full width at half maximum) of the NPs and the accompanying electric field enhancement. We find that the nanoparticle sizes that have been reported to produce the optimized effect on cancer cells are of minimum absorption bandwidth and optimized electric field magnitude...
2018: Cancer Nanotechnology
https://www.readbyqxmd.com/read/29573716/wi-fi-is-an-important-threat-to-human-health
#10
Martin L Pall
Repeated Wi-Fi studies show that Wi-Fi causes oxidative stress, sperm/testicular damage, neuropsychiatric effects including EEG changes, apoptosis, cellular DNA damage, endocrine changes, and calcium overload. Each of these effects are also caused by exposures to other microwave frequency EMFs, with each such effect being documented in from 10 to 16 reviews. Therefore, each of these seven EMF effects are established effects of Wi-Fi and of other microwave frequency EMFs. Each of these seven is also produced by downstream effects of the main action of such EMFs, voltage-gated calcium channel (VGCC) activation...
March 21, 2018: Environmental Research
https://www.readbyqxmd.com/read/29562127/negative-deviations-from-the-debye-h%C3%A3-ckel-limiting-law-for-high-charge-polyvalent-electrolytes-are-they-real
#11
Dan Fraenkel
In the past few decades, emf (E) measurements using improved electrochemical cells have afforded the derivation of mean ionic activity coefficients (γ± 's) of very dilute solutions of binary electrolytes, within the 10-6 - 10-3 molar range (Malatesta et al., J. Sol. Chem. 1994, 23, 11). Such measurements are especially important for highly charged electrolytes whose behavior at very low concentration is not yet fully understood, and whose γ± values, derived from E data, have been claimed by Malatesta and coworkers to exhibit "negative deviations" from the Debye-Hückel (DH) limiting law...
March 21, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29557703/evaluation-of-the-inter-person-variability-of-hazards-to-the-users-of-baha-hearing-implants-caused-by-exposure-to-a-low-frequency-magnetic-field
#12
Patryk Zradziński
PURPOSE: In this work, the inter-person variability of hazards caused by a low frequency magnetic field exposure (of various polarisation and homogeneity near to the magneto therapy applicator) to users of BAHA hearing implants were investigated with respect to various head structures. MATERIAL AND METHODS: The effects of exposure were evaluated by numerical simulations of the electric field (Ein ) induced in head phantoms (regular or with implant model). Phantoms mimic head dimensions and thicknesses of layers of skin, fat, skull bones and brain...
March 20, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29550650/does-acute-radio-frequency-electromagnetic-field-exposure-affect-visual-event-related-potentials-in-healthy-adults
#13
Anna Dalecki, Sarah P Loughran, Adam Verrender, Catriona A Burdon, Nigel A S Taylor, Rodney J Croft
OBJECTIVE: To use improved methods to address the question of whether acute exposure to radio-frequency (RF) electromagnetic fields (RF-EMF) affects early (80-200 ms) sensory and later (180-600 ms) cognitive processes as indexed by event-related potentials (ERPs). METHODS: Thirty-six healthy subjects completed a visual discrimination task during concurrent exposure to a Global System for Mobile Communications (GSM)-like, 920 MHz signal with peak-spatial specific absorption rate for 10 g of tissue of 0 W/kg of body mass (Sham), 1 W/kg (Low RF) and 2 W/kg (High RF)...
February 27, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29547352/estimates-of-environmental-exposure-to-radiofrequency-electromagnetic-fields-and-risk-of-lymphoma-subtypes
#14
G Satta, N Mascia, T Serra, A Salis, L Saba, S Sanna, M G Zucca, E Angelucci, A Gabbas, F Culurgioni, P Pili, E Mura, M Cappai, M G Ennas, P Cocco
We investigated the association between environmental exposure to radiofrequency electromagnetic fields (RF-EMF) and risk of lymphoma subtypes in a case-control study comprised of 322 patients and 444 individuals serving as controls in Sardinia, Italy in 1998-2004. Questionnaire information included the self-reported distance of the three longest held residential addresses from fixed radio-television transmitters and mobile phone base stations. We georeferenced the residential addresses of all study subjects and obtained the spatial coordinates of mobile phone base stations...
March 16, 2018: Radiation Research
https://www.readbyqxmd.com/read/29529581/comparison-of-radiofrequency-electromagnetic-field-exposure-levels-in-different-everyday-microenvironments-in-an-international-context
#15
Sanjay Sagar, Seid M Adem, Benjamin Struchen, Sarah P Loughran, Michael E Brunjes, Lisa Arangua, Mohamed Aqiel Dalvie, Rodney J Croft, Michael Jerrett, Joel M Moskowitz, Tony Kuo, Martin Röösli
BACKGROUND: The aim of this study was to quantify RF-EMF exposure applying a tested protocol of RF-EMF exposure measurements using portable devices with a high sampling rate in different microenvironments of Switzerland, Ethiopia, Nepal, South Africa, Australia and the United States of America. METHOD: We used portable measurement devices for assessing RF-EMF exposure in 94 outdoor microenvironments and 18 public transport vehicles. The measurements were taken either by walking with a backpack with the devices at the height of the head and a distance of 20-30 cm from the body, or driving a car with the devices mounted on its roof, which was 170-180 cm above the ground...
March 9, 2018: Environment International
https://www.readbyqxmd.com/read/29527523/exposure-to-mobile-phone-emitted-electromagnetic-fields-and-human-attention-no-evidence-of-a-causal-relationship
#16
REVIEW
Giuseppe Curcio
In the past 20 years of research regarding effects of mobile phone-derived electromagnetic fields (EMFs) on human cognition, attention has been one of the first and most extensively investigated functions. Different domains investigated covered selective, sustained, and divided attention. Here, the most relevant studies on this topic have been reviewed and discussed. A total of 43 studies are reported and summarized: of these, 31 indicated a total absence of statistically significant difference between real and sham signal, 9 showed a partial improvement of attentional performance (mainly increase in speed of performance and/or improvement of accuracy) as a function of real exposure, while the remaining 3 showed inconsistent results (i...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29513614/extremely-low-frequency-variable-electromagnetic-fields-affect-cancer-and-noncancerous-cells-in-vitro-differently-preliminary-study
#17
Anna Koziorowska, Maria Romerowicz-Misielak, Przemysław Sołek, Marek Koziorowski
The exposure to extremely low frequency electromagnetic field (ELF-EMF) may result in various changes at the cellular level. To identify the effect of ELF-EMF exposure on viability of cells, cancer cells (U87-MG; 143B) and noncancerous cells (BJ; HEK) in exponential growth phase were exposed or sham-exposed to different values of frequency (2, 20, 30, 50 and 60 Hz), different shapes (sinusoidal, square and triangular) and time of exposure (0.5, 1, 2, 3 h) to electromagnetic field. After exposure, viability of cells was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)...
March 7, 2018: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/29511686/case-control-study-on-occupational-exposure-to-extremely-low-frequency-electromagnetic-fields-and-the-association-with-meningioma
#18
Michael Carlberg, Tarmo Koppel, Mikko Ahonen, Lennart Hardell
Objective: Exposure to extremely low-frequency electromagnetic fields (ELF-EMF) was in 2002 classified as a possible human carcinogen, Group 2B, by the International Agency for Research on Cancer at WHO based on an increased risk for childhood leukemia. In case-control studies on brain tumors during 1997-2003 and 2007-2009 we assessed lifetime occupations in addition to exposure to different agents. The INTEROCC ELF-EMF Job-Exposure Matrix was used for associating occupations with ELF-EMF exposure ( μ T) with meningioma...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29509058/gene-expression-analysis-in-human-peripheral-blood-cells-after-900-mhz-rf-emf-short-term-exposure
#19
Andreas Lamkowski, Matthias Kreitlow, Jörg Radunz, Martin Willenbockel, Frank Sabath, Winfried Schuhn, Marcus Stiemer, Lars Ole Fichte, Michael Dudzinski, Sebastian Böhmelt, Reinhard Ullmann, Matthäus Majewski, Valeria Franchini, Stefan Ede, Alexis Rump, Matthias Port, Michael Abend
Radiofrequency electromagnetic fields (RF-EMF) are a basic requirement of modern wireless communication technology. Statutory thresholds of RF-EMF are established to limit relevant additional heat supply in human tissue. Nevertheless, to date, questions concerning nonthermal biological effects have yet to be fully addressed. New versions of microarrays (8 × 60K v2) provide a higher resolution of whole genome gene expression to display adaptive processes in cells after irradiation. In this ex vivo/ in vitro study, we irradiated peripheral blood cells from five donors with a continuous wave of 900 MHz RF-EMF for 0, 30, 60 and 90 min...
March 6, 2018: Radiation Research
https://www.readbyqxmd.com/read/29504145/effect-of-a-1800-mhz-electromagnetic-field-emitted-during-embryogenesis-on-chick-development-and-hatchability
#20
K Pawlak, Z Nieckarz, A Sechman, D Wojtysiak, B Bojarski, B Tombarkiewicz
The level of artificial electromagnetic field (EMF) has steadily increased with the development of human civilization. The developing chicken embryo has been considered a good model to study the effects of EMF on living organisms. The aim of the study was to determine the effect of a 1800 MHz electromagnetic field during embryogenesis on the frequency of chick embryo malformations, morphometric parameters of the heart and liver and concentration of corticosterone in blood plasma, lipid and glycogen content in the liver of newly hatched chicks...
March 5, 2018: Anatomia, Histologia, Embryologia
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"