Sentences with phrase «human radiation dose»

Not exact matches

But scientists still don't know how the human body will react to sustained low - level doses of radiation inherent in space travel.

The space - based results were a product of CRaTER's ability to accurately gauge the radiation dose of cosmic rays after passing through a material known as «tissue - equivalent plastic,» which simulates human muscle tissue.

That there will be some human cancers is assumed, thanks to the linear no - threshold theory of cancer, which holds that no radiation dose is so small that it can not produce a probability of cancer.

Administering a dose of resveratrol equivalent to the amount in a glass of red wine also nearly tripled the survival rate of human cells that were exposed to radiation.

Due to the meltdown in that reactor, radiation levels are too high for any human to enter without receiving an unacceptable dose.

18 Another species, Deinococcus radiodurans, can survive almost 10,000 times the dose of radiation lethal to humans, making it a prime candidate for the cleanup of nuclear waste.

They also point out that one of the most significant Solar Energetic Particle (SEP) events happened in September 2017 releasing large doses of radiation that could pose significant risk to both humans and satellites.

The gauntlet Juno ran at Jupiter held many chances for catastrophe: The spacecraft might have been knocked out by intense magnetic fields (at that distance, 20 times stronger than Earth's), ionizing radiation (a total dose of 265 rads — more than enough to kill a human being), dust particles from Jupiter's rings (from which the main engine was completely unshielded) or loss of power if the solar arrays were unable to reorient to the sun.

Deinococcus radiodurans is renowned for its resistance to radiation — it can survive several thousand times the lethal dose for humans.

The total radiation delivered, 0.5 gray (Gy), was high relative to environmental levels (from sources such as naturally occurring radon in rock), but significantly lower than equivalent human doses experienced in CAT - scans or cancer therapy.

The large cosmic ray - induced radiation dose at the surface may also prove problematic for future human exploration of Mars (e.g. Saganti et al. 2004).

The aurora was accompanied by a powerful dose of radiation that would have posed a significant danger to humans exploring the Red Planet.

The team of researchers harvested hematopoietic stem cells from three macaques prior to SHIV infection of all six animals in the study, treated the animals with anti-retroviral therapy (ART) to reduce viral load and mimic the situation in human HIV - infected patients who are treated with ART, and then exposed the three monkeys from which they had collected hematopoietic stem cells to a high dose of radiation.

Adrienne Scheck has shown that when applied with curative doses of radiation therapy, the ketogenic diet can make brain tumors vanish in mice.2 However, many dietary changes appear to blunt cancer growth in mice, 3 and the effects in humans are less clear.

Beth Overley, a veterinary oncologist in Langhorne, PA, explains that because vets hope to extend life for only 6 months to a few years, they use lower doses of chemo and radiation than humans receive.

Stereotactic radiosurgery, often used in human medicine, is designed to precisely deliver high doses of radiation to a tumor or localized cancer -LSB-...]

«The committee concludes that current scientific evidence is consistent with the hypothesis that there is a linear, no - threshold dose - response relationship between exposure to ionizing radiation and the development of cancer in humans.»

Furthermore, background radiation in the US is now dominated by human exposures, so any hypothetical minimum in the dose response curve set by evolution has been passed for many people.

As I understand things (and this is NOT my field at all) there is a robust dispute over how sure we can be about what ionizing radiation dose to human health at small doses.

In the Proceedings of the National Academy of Sciences: «Evaluation of radiation doses and associated risk from the Fukushima nuclear accident to marine biota and human consumers of seafood.»

According to Evaluation of radiation doses and associated risk from the Fukushima nuclear accident to marine biota and human consumers of seafood in the Proceedings of the National Academy of Sciences,