Jg davis et al : health effects of low - frequency electric and magnetic fields . oak ridge associated universities , 1992 目前没有文献指出，由家用电器、电视显像终端和当地高压电力输配线所产生的极低频率电磁场会危害健康。
Elf - emf is also a physical factor . we suppose that these signal pathways may mediate 50hz magnetic field ( mf ) signals in cells 极低频电磁场是环境中的一种物理应激因子，因此推测极低频电磁场的生物效应与该途径间存在一定的联系。
It is infered signal length is short , the spectrum resolving power is low by using fft method , so the vlf % and lf % by using 2 method has great difference 推测由于5分钟hrv信号点数较少， fft分析时分辨率不高，因此两种方法所得极低频vlf和低频lf有较大差异。
The purposes of this study were to investigate the possible effects of exposure to 50hz mf on protein tyrosine phosphorylation , sapk signal pathway and p38 mapk signal pathway 所以本实验以蛋白质酪氨酸磷酸化为起点，研究极低频磁场对sapk途径及p38mapk途径的影响。
Low - frequency electromagnetic fields in our environment often have little energy to directly traverse the membrane , and act with biological molecules , or damage the dna 环境中极低频电磁场通常因能量较低而难以直接与生物大分子作用或导致dna损伤，引发突变、畸变及断裂等效应。
The corrosion current and impressed against - corrosion current of a ship modulated by shaft ' s rotation will generate an extremely low frequency electric field ( elfe ) which becomes a kind of important characteristic signal in sea water 摘要舰船的腐蚀和防腐电流经螺旋桨转动的调制后在海水中会?生极低频电场，成?一种重要的特征信号源。
A number of epidemiological studies have reported an association between human cancers and various surrogate measures of power frequency electromagnetic fields ( pf - emf ) , but the epidemiological studies done in the past 20 years as a whole showed no persuasive evidence on the causal link of interest mainly because of methodological flaws , in particular inadequate exposure assessment and scarcity of exposure parameters , if any , truly associated with cancer 摘要累积超过二十年的时问，虽有许多流行病学研究发现，极低频电磁场与人类癌症发生有关，但整体流行病学研究仍未能提供充分证据说明极低频电磁场与人类癌症之间是否具有因果关系；其中最主要的原因是，流行病学研究所使用的电磁场暴露评估方法并不完善，并且无法确定真正与癌症相关的暴露参数。
