Plasma membrane vesicles were isolated from a subline of L929 mouse fibroblasts grown on defined medium in the absence of serum. These vesicles were not significantly contaminated by mitochondria or endoplasmic reticulum. The isolation procedure, a modification of that originally developed by McKeel and Jarett (McKeel, D.W., and Jarett, L. (1970) J. Cell Biol. 44, 417-432) employs mechanical ho...

Frédéric Joliot was born in Paris on 19th March 1900. His older brother was killed in the first few days of the 1914-1918 war. Frédéric joined the École de physique et chimie industrielles in Paris, where he studied physics at the top of his class. In December 1924, director of studies, Paul Langevin, presented him to Marie Curie; he became her personal assistant at the Radium Institute, which ...

Radioactivity was measured for 170 cow's milk samples in Salah-Din governorate. Samples were by a gamma spectrometry system, using high purity germanium (HPGe) detector. The detector shielded 10 cm all sides with cadmium copper the inner sides. selected characteristic peaks detection of different ware 1460kev K-40. energy calibration performed set standard ray sources Eu-152. results show prese...

It is obvious that healthy eating will only be with foodstuffs, and the foods consumed can affect social life religious in addition to physical mental health. The concentration of radioactivity may basic foodstuffs such as oil increase dose rate taken food. In study, no measurable U-238, Ra-226, Th-232, K-40, Cs-137 Cs-134 concentrations were found olive oils obtained from olives grown Osmaniye...

Introduction In the present nuclear age, the devastating effects of radioactivity have been highlighted by such issues as nuclear weapons testing and radioactive waste disposal, and by the reactor incidents at Three Mile Island and Chernobyl. These events illustrate the vexing problems that can be associated with high levels of radioactivity. However, the presence of radioactivity is not limite...

OBJECTIVE To confirm or refute the notion that only parathyroid adenomas have radioactivity higher than 20% of background. DESIGN Retrospective analysis of a prospective patient data set. SETTING Tertiary care referral center. PATIENTS Forty-six patients (9 men and 37 women; mean +/- SD age, 53.7 +/- 12.1 years) underwent thyroid and parathyroid surgery between December 2005 and December ...

This work examines the consequence of γ radioactivity on SOI-based Tunnel Field Effect Transistors & their use as radiation dosimeters. Extensive simulations have been carried out throughout study in order to examine creation e--h+ pairs oxide field predict device’s features from region where transistor operation around pinch-off voltage significant agglomeration area. It was found that pre...

Introduction Conclusions References

With alternate, sustainable, natural sources of energy being sought after, there is new interest in energy from radioactivity, including natural and waste radioactive materials. A study of various atomic batteries is presented with perspectives of development and comparisons of performance parameters and cost. We discuss radioisotope thermal generators, indirect conversion batteries, direct con...