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ICRP第145号出版物成人网格参考计算体模 （Adult Mesh-type Reference Computational Phantom）
成人网格 参考计算体模 ICRP 第145号出版物 剂量系数计算
2023/3/9
继2007年建议(第103号出版物)之后，ICRP在第110号出版物(2009年)和第143号出版物(2020年)中发布了用于剂量系数计算的体素参考计算体模(VRCPs)系列。 基于真人CT图像的VRCPs改进了解剖学和剂量学，而不是在2007年建议之前用于剂量系数计算的老式数学(或风式化)体模。然而，这种由体素大小固定的体素组成的体素体模在表示某些解剖结构，特别是那些比体素尺寸更小或更薄的体素体...
Tire-related chemical is largely responsible for adult coho salmon deaths in urban streams（图）
Tire-related chemical coho salmon deaths urban streams
2020/12/11
Every fall, more than half the coho salmon that return to Puget Sound's urban streams die before they can spawn. In some streams, all die. But scientists didn't know why.Now, a U.S. National Scie...
Perfect timing:Making the 'switch' from juvenile to adult（图）
Perfect timing Making switch juvenile adult
2019/10/23
Very little is known about how the onset of puberty is controlled in humans, but an NSF-funded discovery of a new gene in the roundworm C. elegans could be the "missing link" that determines the juven...
More years of childhood education reduce adult heart disease risk（图）
childhood education reduce risk heart disease
2019/10/23
State policies requiring children to attend additional years of school may result in a reduced risk of heart disease and improvements in cardiovascular risk factors in adulthood, according to a study ...
A New View of Brain Development:Scientists Uncover Striking Differences Between the Adult and Newborn Mouse Brain
Brain Development Scientists Striking Differences Adult Newborn Mouse Brain
2016/7/4
Columbia scientists have found that spikes in the activity of neurons in young mice do not spur corresponding boosts in blood flow — a discovery that stands in stark contrast to the adult mouse brain....
Disruptions to embryonic reprogramming alter adult mouse behavior
embryonic reprogramming adult mouse
2016/2/22
Right after fertilization, embryos at the earliest stages of development tell their genes: "Forget what it was like in the sperm or egg where you came from."
When the process of epigenetic reprogramm...
Genes for age-related cognitive decline found in adult worm neurons (Nature)
Genes age cognitive decline adult worm neurons
2015/12/22
Researchers from Princeton University have identified genes important for age-related cognitive declines in memory in adult worm neurons, which had not been studied previously. The research, published...
More than one in three adults in the United States is considered to be obese. What impact can exercise done early in life have on the propensity for exercising during the adult years?A team ...
University of Queensland Press has discovered a new talent on the young adult novel scene, publishing the chilling The Haunting of Lily Frost.
The human brain can adapt to changing demands even in adulthood, but MIT neuroscientists have now found evidence of it changing with unsuspected speed. Their findings suggest that the brain has a netw...
13 July 2007，Suicide rates in young adults have increased dramatically in Scotland’s most deprived areas, according to new research from the University of St Andrews. The study by health geographers D...
18 May 2007，Shoppers in Bradford will be given the chance to get advice on getting into higher education and to win £100 in book shop vouchers on Tuesday 22 May 2007 as part of Adult Learners’ W...
massachusetts institute of technology bioengineer advances survival, promise of adult stem cells（图）
stem cells
2007/3/5
February 27, 2007，MIT researchers have developed a technique to encourage the survival and growth of adult stem cells, a step that could help realize the therapeutic potential of such cells.
Researchers Stimulate Growth of Neural Stem Cells in Adult Brain for Treatment of Neurological Disorders(图)
Neural Stem Cells brain Parkinson Alzheimer multiple sclerosis
2006/11/29
14 NOV 2006，PASADENA, Calif.--In a development that could potentially benefit victims of degenerative neurological diseases, researchers have succeeded in stimulating the growth of adult neural stem c...
ADOLESCENT BUT NOT ADULT HAMSTERS ARE MORE AGGRESSIVE ON LOW DOSE OF FLUOXETINE, HINTING AT REASONS FOR TROUBLING TEENAGE RESPONSES TO COMMON ANTI-DEPRESSANT DRUG
teenagers anti-depressant fluoxetine hydrochloride
2006/11/13
October 15, 2006，WASHINGTON, DC— New research offers ADOLESCENT BUT NOT ADULT HAMSTERS ARE MORE AGGRESSIVE ON LOW DOSE OF FLUOXETINE, HINTING AT REASONS FOR TROUBLING TEENAGE RESPONSES TO COMMON ANTI-...