Shamir Lior
Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
J Environ Health. 2010 Jul-Aug;73(1):20-3.
In this article, the author proposes to consider a link between infant mortality rate (IMR) and galactic cosmic radiation (CR) density. The periodical increase in solar activity increases the effect of the magnetic field of the sun, and therefore weakens galactic cosmic rays hitting the Earth's surface. As a result, embryos in their early stages of development may be less exposed to high-energy ionizing cosmic rays when the solar activity peaks. In the study discussed here, cosmic ray density data were correlated with the U.S. infant mortality rate in the following year. Statistical analysis shows that in the past 30 years, Pearson correlation between the change in galactic CR flux and IMR decrease in the following year was -0.36 (p < .05).
在本文中，作者提议考虑婴儿死亡率（IMR）与银河宇宙辐射（CR）密度之间的联系。太阳活动的周期性增加会增强太阳磁场的效应，从而削弱撞击地球表面的银河宇宙射线。因此，在太阳活动达到峰值时，处于发育早期阶段的胚胎可能较少受到高能电离宇宙射线的照射。在本文所讨论的研究中，宇宙射线密度数据与次年的美国婴儿死亡率相关。统计分析表明，在过去30年中，银河宇宙射线通量的变化与次年婴儿死亡率下降之间的皮尔逊相关系数为-0.36（p < .05）。
