Julian Osborne from the University of Leicester, UK, studies gamma-ray bursts, which are emitted by the most energetic explosions in the universe and can last for seconds. He says that the brief pulse seen by Cannon’s team is “pretty amazing”. The pulse was an order of magnitude brighte...
Knowledge Check X-rays, gamma rays and microwaves travelling in vacuum have Asame wavelength but different velocities Bsame frequency but different velocities Csame velocity but different wavelentghs Dsame velocity and same frequencySubmit What physical quantity is the same for X- rays of wavelength...
Why does emission of an alpha or beta particle change the nucleus of an atom but gamma decay leaves it unchanged? What are alpha particles? When U238 decays into Pb206 via alpha and beta decay, what are the byproducts of the d...
In Ogg1+/− mice, both radiation and diet had a significant impact on the Fpg-ss (p = 0.016 and p = 0.004, respectively). The most stressed group (low Se diet and radiation) had less oxidised DNA lesions compared with the control group (normal Se diet and no ...
Effect of dose rate of gamma irradiation on biochemical quality and browning of mushrooms Agaricus bisporus In order to enhance the shelf-life of edible mature mushrooms Agaricus bisporus, 2 kGy ionising treatments were applied at two different dose rates: 4.5 kG... MD Beaulieu,G D'Aprano,M ...
SE Fordham1, A Long1, D Masic1, LJ Russell1, CJ Harrison1, V Rand1, C Elstob1, N Bown2, D Rowe2, C Lowe2, G Cuthbert2, S Bennett2, S Crosier1, CM Bacon1, K Onel3, K Scott4, D Scott5, LB Travis6, FEB May1 and JM Allan1 Ionising radiation is a potent human carcinog...
Ionising radiation is a potent human carcinogen. Epidemiological studies have shown that adolescent and young women are at increased risk of developing breast cancer following exposure to ionising radiation compared with older women, and that risk is dos
What is radio activity? Compare the properties of alpha, beta and gamma-rays. What is the contribution of radio activity in the development of atomic structur
Radiotherapy, or radiation therapy, uses high speed ionising radiation, similar to x-rays, to hit the DNA or genetic code of abnormal cells. If the configuration of the DNA can be damaged or changed, the theory is that it is then most likely to be nonsensical. Thus rather than the canc...
Protein phosphatase 6 interacts with the DNA-dependent protein kinase catalytic subunit and dephosphorylates gamma-H2AX. Mol Cell Biol 2010; 30: 1368–1381. 15. Kelley LA, Sternberg MJ. Protein structure prediction on the Web: a case study using the Phyre server. Nat Protoc 2009; 4: 363–...