推 daze:问题是你到底想知道什麽? 是想知道指南针偏转的原因还是想知 05/23 23:11 → daze:道身体不适的理由? 基本上就算有磁场...那种程度的磁场对你也 05/23 23:13 → daze:该没有任何影响 有人做过实验暴露在数十Tesla的磁场下，也没 05/23 23:13 → daze:当场暴毙... 区区比地磁还弱的磁场当不致有影响...又...如果 05/23 [以下恕删] 这个应该还是要保持科学的怀疑。 对於静磁场，人体应该有一定的适应能力，但是重点并不是在静磁场中，而是在 「变动的」磁场，也就是以人体对超导磁铁（ie. strongest 应用型磁铁，如中 研院的(solution state Nuclear Magnetic Resonance Spectrometer，目前为 18.8T（中心探头的磁场）与人体的中线画一无限大平面，这个平面的磁通量若 有改变，则对生物体会产生「影响」#。 我基本上同意您的论点，数量级=G的磁场跟本不足为惧。但这并不是指数十T的 磁场无害。目前是我们知道磁通量的变化对生物体有影响，但是这影响是什麽？ 就是以我所知还没有定论（不同的条件下有不同的结果，有时候增强，有时候 减弱，而没有一定的定论）所以，所以无法证实有害*，也无法证实无害。只能说 我们还不清楚。至於人会不会立刻死，和有没有害也是两回事。 您或许会觉得我吹毛求疵，但我想讲的是，目前知道，「有影响」。但并不是 「证实无害」亦非「证实有害」*（注）。这两个是有很大的距离的。 所以罗，长期使用手机，（该电磁波亦属变动电磁场）与人体的关系为何？ 我还蛮想知道相关的理论研究的，如果板友知道相关资讯，也请提供期刊名与 reference，感谢！ 以上的「影响」老实说我是在seminar（1998年於清大工工馆）讲到植物受磁 场影响产生不同的生长速度。至於reference…找到再PO上来。有相关资讯的 也请不吝给我指正！ 另外部份言论来自与清大教授间的闲谈。 我个人是作NMR的，对於这种问题当然很关心，因为我天天接触数十数百G以上 的磁场。 不过我想原波不必太担心，你接触的比我少极多。以物理的眼光，你那个比我 根本是无限小的scale。 *注：传言都是说有害啊，但因为手机公司的○○xx所以没公布，那倒底有没有 谁有相关的证据和paper?（不要告诉我机密什麽的，那没用，和流言的等级 差不了多少） # Bioelectromagnetics. 2006 Jan;27(1):26-34. Effects of static magnetic fields on growth of Paramecium caudatum. Elahee KB, Poinapen D. Biosciences Department, University of Mauritius, Reduit, Mauritius. [email protected] 摘要： Keywords population growth ?Gaussian distribution model, diamagnetic susceptibility ?ciliary movement Abstract Little is known about the influence of magnetic fields on growth of primitive eukaryotes such as the ciliate Paramecium. The latter are known to exhibit interesting characteristics such as electrotaxis, gravitaxis, and membrane excitability not commonly encountered in higher organisms. This preliminary study reports the effects of static magnetic fields on growth of Paramecium caudatum. The microorganisms were either permanently or 24 h on-and-off exposed to North and South polarity magnetic fields of average field gradient 4.3 T/m, for a period of 96 h. The growth rate and lag phase of all exposed populations were not significantly different from control ones exposed to normal geomagnetic field (P > .05). However, a significant negative shift in tmax (time taken for maximum growth) of 10.5%-12.2% and a significant decrease (P < .05) in population size of 10.2%-15.1% during the 96 h of experimental conditions were recorded for exposed populations compared to control. （这就是我所说的，生物体其实在静磁场内都可能会受到影响 （这只是某条件下受到影响的，也有不受影响的条件）， 而在变动磁场内，则必定受到影响，因为要「调控」到「适合生长/作用」 的条件中。这个还太笼统…应该说相关的研究还很多，待有兴趣的同好 研究看看吧！） Our results suggest that magnetic fields, irrespective of polarity and exposure period reduce Paramecium growth by triggering early senescence of the population. The mechanisms underlying the small changes in population growth are unknown at this level, but various hypotheses have been suggested, including disorganization of swimming patterns resulting from (i) changes in cell membrane electric potential due to high speed movement through a gradient magnetic field and (ii) thermodynamic effect of anisotropic magnetic energies on cell membrane components affecting functioning of calcium channels. Altered swimming movements could in turn affect highly orchestrated processes such as conjugation, essential for survival of the organisms during development of adverse environmental conditions as thought to occur in the closed culture system used in this study. Bioelectromagnetics 27:26-34, 2006. c 2005 Wiley-Liss, Inc. ============================================================= 看完以下的，突然觉得有点危险…（不过应该是只限我，你们应该都不 会受到影响吧…请同好帮忙研究一下…我该睡了orz，越写越多，夭寿...） J Cell Physiol. 2004 Feb;198(2):324-32. Exposure to 900 MHz electromagnetic field induces an unbalance between pro-apoptotic and pro-survival signals in T-lymphoblastoid leukemia CCRF-CEM cells. Marinelli F, La Sala D, Cicciotti G, Cattini L, Trimarchi C, Putti S, Zamparelli A, Giuliani L, Tomassetti G, Cinti C. Institute for Organ Transplantation and Immunocytology, ITOI-CNR, Bologna unit, c/o IOR, Bologna, Italy. It has been recently established that low-frequency electromagnetic field (EMFs) exposure induces biological changes and could be associated with increased incidence of cancer, while the issue remains unresolved as to whether high-frequency EMFs can have hazardous effect on health. Epidemiological studies on association between childhood cancers, particularly leukemia and brain cancer, and exposure to low- and high-frequency EMF suggested an etiological role of EMFs in inducing adverse health effects. To investigate whether exposure to high-frequency EMFs could affect in vitro cell survival, we cultured acute T-lymphoblastoid leukemia cells (CCRF-CEM) in the presence of unmodulated 900 MHz EMF, generated by a transverse electromagnetic (TEM) cell, at various exposure times. We evaluated the effects of high-frequency EMF on cell growth rate and apoptosis induction, by cell viability (MTT) test, FACS analysis and DNA ladder, and we investigated pro-apoptotic and pro-survival signaling pathways possibly involved as a function of exposure time by Western blot analysis. At short exposure times (2-12 h), unmodulated 900 MHz EMF induced DNA breaks and early activation of both p53-dependent and -independent apoptotic pathways while longer continuous exposure (24-48 h) determined silencing of pro-apoptotic signals and activation of genes involved in both intracellular (Bcl-2) and extracellular (Ras and Akt1) pro-survival signaling. Overall our results indicate that exposure to 900 MHz continuous wave, after inducing an early self-defense response triggered by DNA damage, could confer to the survivor CCRF-CEM cells a further advantage to survive and proliferate. Copyright 2003 Wiley-Liss, Inc. --

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