The rising luminosity of the recent, nearby supernova 2011fe shows a quadratic dependence with time during the first ≈ 0.5 − 4 days. In addition, the composite lightcurves formed from stacking together many Type Ia supernovae (SNe Ia) show a similar power-law index of 1.8±0.2 with time. I explore what range of power-law rises are possible due to the presence of radioactive material near the sur...

Chitosan–zeolite composite as a low-cost and efficient material in the removal of caesium synthetic liquid organic radioactive waste solutions.

Although isotopic labeling has been of great use in studies of drug metabolism, the necessarily small amounts of material used in such experiments often preclude the identification of unknown metabolites by conventional chemical means. Such difficulties are commonly circumvented by adding a known non-labeled compound, suspected to be a metabolite, to the unknown mixture and reisolating the subs...

in this article, the some application of package have been discussed, which is primary role to maintain and create a calm atmosphere and cause people use the product with standard principles and rules. dangerous packaging materials where have been seen them with logo, it should be noticed that we must use such packages carfully, so renamed them resistant packaging or hazardous. the widespread o...

introduction: ophthalmic plaque radiotherapy using i-125 radioactive seeds in removable episcleral plaques is often used in management of ophthalmic tumors. radioactive seeds are fixed in a gold bowl-shaped plaque and the plaque is sutured to the scleral surface corresponding to the base of the intraocular tumor. this treatment allows for a localized radiation dose delivery to the tumor with a ...

Electric arc furnace dust, due to steel fabrication by-products, some of that material has been contaminated with radioactive materials from orphan sources. After calculating the concentration radionuclide activity, it is known meets criteria for clearance application and can be used other purposes according appropriate characteristics. By determining clearance, EAF dust will processed through ...

In April 2012 we carried out a 1-year hematological study on a population of wild Japanese monkeys inhabiting the forest area of Fukushima City. This area is located 70 km from the Fukushima Daiichi Nuclear Power Plant (NPP), which released a large amount of radioactive material into the environment following the Great East Japan Earthquake of 2011. For comparison, we examined monkeys inhabitin...

The University of Texas Medical Branch (UTMB) at Galveston is a large academic medical center with about 12,700 employees, 350 radioisotope research labs and 200 permitted radioactive materials users. Consequently, UTMB generates a fairly large amount of radioactive waste. The majority of this waste contains short-lived radionuclides, such as 32P, 33P, and 35S, which are held for decay and then...