Archive

242 posts

Showing results for: ins

Numerical methods for computing the ground state of spin-1 Bose-Einstein condensates in a uniform magnetic field.

Research RF Safe Research Library Jan 1, 2008

This paper presents numerical methods to compute ground-state solutions of spin-1 Bose-Einstein condensates in a uniform magnetic field. The approach uses normalized gradient flow with an additional normalization condition and enforces conservation of total mass and magnetization. The authors compare numerical…

Intestinal MMC-related electric fields and pancreatic juice control the adhesion of Gram-positive and Gram-negative bacteria to the gut epithelium--in vitro study.

Research RF Safe Research Library Jan 1, 2008

This in vitro study tested whether a weak electric field reconstructed from duodenal spiking potentials during an MMC cycle affects bacterial adhesion to Caco-2 intestinal epithelial cells. The MMC-related electric field increased adhesion of Lactobacillus and Lactococcus strains, while two pathogenic strains…

Electronic response properties of carbon nanotubes in magnetic fields.

Research RF Safe Research Library Jan 1, 2008

This computational study investigates magnetic linear response properties of achiral and chiral carbon nanotubes using first-principles electronic structure methods. It computes magnetic shielding inside and outside nanotubes due to electronic currents induced by external magnetic fields applied parallel or…

Greyscale intravascular ultrasound and IVUS-radiofrequency tissue characterisation to improve understanding of the mechanisms of coronary stent thrombosis in drug-eluting stents.

Research RF Safe Research Library Jan 1, 2008

This review describes proposed mechanical causes of drug-eluting stent thrombosis and notes that many are identifiable by greyscale intravascular ultrasound (IVUS). It highlights that evidence linking specific IVUS findings to stent thrombosis remains uncertain because relatively few stent thrombosis cases have been…

Chemotherapy side-effect management using mobile phones.

Research RF Safe Research Library Jan 1, 2008

This conference paper describes a mobile-phone telemedicine system for managing chemotherapy side-effects at home using symptom diaries and automated alerts to nurses. Six patients used the system for two cycles of oral chemotherapy. The abstract reports two instances where moderate symptoms deteriorated to more…

Effects of electromagnetic field produced by mobile phones on the oxidant and antioxidant status of rats.

Research RF Safe Research Library Jan 1, 2007

This rat study examined whether EMR from GSM mobile phones affects oxidant/antioxidant status. Compared with controls, exposed rats had lower plasma antioxidant vitamins (C, E, A), reduced glutathione, and lower CAT and SOD activities. The acute exposure condition was reported to produce larger decreases than the…

900 MHz radiofrequency-induced histopathologic changes and oxidative stress in rat endometrium: protection by vitamins E and C.

Research RF Safe Research Library Jan 1, 2007

This rat study examined 900 MHz radiofrequency exposure (30 min/day for 30 days) and reported biochemical and histopathologic changes in endometrial tissue consistent with oxidative stress and tissue injury. The abstract reports increased NO and MDA and decreased antioxidant enzyme activities (SOD, CAT, GSH-Px) in…

Magnetic field exposure in a nondestructive testing operation.

Research RF Safe Research Library Jan 1, 2007

This exposure assessment measured peak magnetic fields during magnetic particle inspection, a nondestructive testing method that uses electromagnetism. Ninety-five peak measurements taken while inspecting 8 turbine engine shafts ranged from

[Operational aspects of risk perception in the electromagnetic fields exposition].

Research RF Safe Research Library Jan 1, 2007

This study reports on symptomatology and risk perception among 45 people living near power-lines in the Benevento area. Although measured electric and magnetic fields were described as being within the normal range, participants reported symptoms mainly in subjective and behavioural domains. The authors argue that…

[Evaluation of the occupational risk related to exposure to electromagnetic fields according to the EC Directive 2004/40 EC: exposure during pregnancy].

Research RF Safe Research Library Jan 1, 2007

This article addresses occupational EMF exposure during pregnancy in the context of EU Directive 2004/40/EC, emphasizing the need for workplace risk evaluation. It notes that research evidence on pregnancy risks from occupational EMF exposure is currently scarce and inconclusive. The authors also report insufficient…

AC electric field-induced alignment and long-range assembly of multi-wall carbon nanotubes inside aqueous media.

Research RF Safe Research Library Jan 1, 2007

This engineering study examines multi-wall carbon nanotubes suspended in water exposed to AC electric fields generated by 3D electrodes. It reports field-induced polarization leading to nanotube alignment and long-range, electrically conducting assemblies spanning the electrode gap, with assembly length controlled by…

Charge and current neutralization of an ion-beam pulse propagating in a background plasma along a solenoidal magnetic field.

Research RF Safe Research Library Jan 1, 2007

This paper reports analytical theory on how a small solenoidal magnetic field affects an ion-beam pulse propagating through background plasma. The authors predict enhanced self-electric and self-magnetic fields under a resonance-like condition (omegace ≈ omegape beta_b) attributed to a dynamo effect. The combined…

Ultranarrow optical absorption and two-phonon excitation spectroscopy of Cu2O paraexcitons in a high magnetic field.

Research RF Safe Research Library Jan 1, 2007

This physics study reports ultranarrow optical absorption and two-phonon excitation spectroscopy of Cu2O paraexcitons in a high magnetic field at 1.2 K. A magnetic field enabled observation of an otherwise forbidden paraexciton absorption line and allowed measurement of field-dependent oscillator strength and energy…

Sine-Gordon description of Beresinskii-Kosterlitz-Thouless vortices in superconductors immersed in an external magnetic field.

Research RF Safe Research Library Jan 1, 2007

This theoretical paper investigates Beresinskii-Kosterlitz-Thouless vortex physics in two-dimensional superconductors under an external magnetic field using a sine-Gordon field-theory approach. The authors state that the model yields a straightforward definition of field-induced magnetization. They also report that…

The Effectiveness of a Conductive Patch and a Conductive Bed Pad in Reducing Induced Human Body Voltage Via the Application of Earth Ground

Research RF Safe Research Library Jan 1, 2005

This engineering-style study measured voltage induced on the human body via capacitive coupling to the environment using a high-impedance measurement head. It then applied earth grounding through a conductive patch and a conductive bed pad. Both grounding methods reportedly reduced coupled 60 Hz mains voltage by at…

Mobile phone use and cancer

Research RF Safe Research Library Jan 1, 2004

This narrative review discusses potential public health consequences of widespread mobile phone use and the controversy around long-term cancer risks. It states that evidence from epidemiological and experimental studies suggests long-term exposure to mobile phone emissions may be linked to a small to moderate…

Biological effects of extremely low frequency electric and magnetic fields: a review

Research RF Safe Research Library Jan 1, 1977

This review summarizes reported biological effects of extremely low frequency (ELF) electric and magnetic fields, describing them as significant and often acting as stressors. Reported outcomes include metabolic, hormonal, and body weight changes in rodents, lethality at high exposure levels in mice and insects, and…

← Prev Page 10 / 10