نتایج جستجو برای: emf

تعداد نتایج: 2456  

2011
Gábor Bergmann Zoltán Ujhelyi István Ráth Dániel Varró

While model queries are important components in modeldriven tool chains, they are still frequently implemented using traditional programming languages, despite the availability of model query languages due to performance and expressiveness issues. In the current paper, we propose EMF-IncQuery as a novel, graph-based query language for EMF models by adapting the query language of the Viatra2 mod...

2014
Dong-Dong Liu Zhen Ren Guang Yang Qian-Ru Zhao Yan-Ai Mei

Although melatonin (MT) has been reported to protect cells against oxidative damage induced by electromagnetic radiation, few reports have addressed whether there are other protective mechanisms. Here, we investigated the effects of MT on extremely low-frequency electromagnetic field (ELF-EMF)-induced Nav activity in rat cerebellar granule cells (GCs). Exposing cerebellar GCs to ELF-EMF for 60 ...

2013
Rik P Bogers John F B Bolte Jan H Houtveen Erik Lebret Rob T van Strien C Maarten A Schipper Mehdi Alkadhimi Christos Baliatsas Irene van Kamp

INTRODUCTION Idiopathic Environmental Intolerance (IEI) attributed to electromagnetic fields (EMF) refers to self-reported sensitivity mainly characterised by the attribution of non-specific physical symptoms to low-level EMF exposure emitted from sources such as mobile phones. Scientific studies have not provided evidence for the existence of IEI-EMF, but these studies did not resemble the rea...

Journal: :Applied and environmental microbiology 2010
Rodica Pena Christine Offermann Judy Simon Pascale Sarah Naumann Arthur Gessler Jutta Holst Michael Dannenmann Helmut Mayer Ingrid Kögel-Knabner Heinz Rennenberg Andrea Polle

The relationships between plant carbon resources, soil carbon and nitrogen content, and ectomycorrhizal fungal (EMF) diversity in a monospecific, old-growth beech (Fagus sylvatica) forest were investigated by manipulating carbon flux by girdling. We hypothesized that disruption of the carbon supply would not affect diversity and EMF species numbers if EM fungi can be supplied by plant internal ...

Journal: :Physiological and biochemical zoology : PBZ 2000
K J Fernie D M Bird R D Dawson P C Laguë

Reduced reproductive success of birds nesting near power lines has been documented but never directly attributed to electromagnetic fields (EMFs). Laboratory studies have identified EMF effects on embryonic development, but reproductive success of wild birds is dependent on additional factors, including fertility, egg size, hatching, and fledging success. We tested whether EMFs affect reproduct...

2016
Jinsheng Lai Yemao Zhang Jiangong Zhang Xingfa Liu Guoran Ruan Sandip Chaugai Jiarong Tang Hong Wang Chen Chen Dao Wen Wang

The aim of this study was to test whether extremely low frequency electromagnetic fields (ELF EMFs) affect health or not. Here, we constructed a 100-μT/50 Hz electromagnetic field atmosphere. A total of 128 rats were randomly assigned into two groups: the ELF EMF group and the sham group. The ELF EMF group was exposed to 100-μT/50-Hz ELF EMF for 20 h per day for three months; at the same time t...

Zinc as an essential trace element was reported to be involved in regulation of the growth and aging of cells. In this study, rat adipose-derived mesenchymal stem cells were exposed to extremely low frequency electromagnetic field (ELF-EMF) of 50 Hz and 20 mT to evaluate whether exposure to ELF-EMF in the presence of zinc sulfate (ZnSO4) affects the telomerase reverse transcriptase (...

2013
Shanshan Xu Guangdi Chen Chunjing Chen Chuan Sun Danying Zhang Manuel Murbach Niels Kuster Qunli Zeng Zhengping Xu

BACKGROUND Although IARC clarifies radiofrequency electromagnetic fields (RF-EMF) as possible human carcinogen, the debate on its health impact continues due to the inconsistent results. Genotoxic effect has been considered as a golden standard to determine if an environmental factor is a carcinogen, but the currently available data for RF-EMF remain controversial. As an environmental stimulus,...

Journal: :The Plant cell 2003
Yong-Hwan Moon Lingjing Chen Rong Long Pan Hur-Song Chang Tong Zhu Daniel M Maffeo Z Renee Sung

The EMBRYONIC FLOWER (EMF) genes EMF1 and EMF2 are required to maintain vegetative development and repress flower development. EMF1 encodes a putative transcriptional regulator, and EMF2 encodes a Polycomb group protein homolog. We examined expression profiles of emf mutants using GeneChip technology. The high degree of overlap in expression changes from the wild type among the emf1 and emf2 mu...

Journal: :Bioelectromagnetics 2007
Cindy Sage Olle Johansson S Amy Sage

Initial tests indicate that personal and occupational use of personal digital assistants (PDAs or palm-held wireless units) produce high intensity bursts of extremely-low frequency electromagnetic fields (ELF-EMF). These emissions could result in comparatively high ELF-EMF exposure in persons that carry a PDA close to the body (i.e., in a pocket or on a belt); or held to the head for cell phone...

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