摘要:

The protective capacity of Vitamins such as Niacinamide, Riboflavine, Vitamin K, Thiamine and Cyano-cobalamine; the coenzymes NAD and FAD, the electron carrier Cytochrome c and mixtures of these compounds in a molar concentration range between 10−6M and 10−4M were studied on gamma irradiated rabbit red blood cells. The dose relative factor (DRF 37) was evaluated by visible absorbancy measurements of the liberated Hemoglobin. Some of the best DRF 37 obtained were: Cytochrome c : 4,7; Riboflavine: 4,0; Cyanocobalamine: 3,6; Thiamine: 3,5; Vitamin K : 2,6; Niacinamide: 2,0.

ISSN:0033-7579    

DOI:10.1080/01422448308226421

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Measured specific rates of diffusion controlled reactions of solvated electron, e, with phenanthrene in 1-alkanols at 25°C are analyzed for the Smoluchowski equation. The diffusion coefficients of es are calcu-lated from the Stokes-Einstein equation, where es is treated as a normal anion. Implications of these calculations are discussed.

ISSN:0033-7579    

DOI:10.1080/01422448308226422

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Glow curves were recorded for NaCl: Ca crystals subjected to annealing and quenching from elevated temperatures. These specimens were irradiated with X-rays at room temperature by tungsten target. Samples exhibit certain glow peaks which are observed only in the first thermal cycle. A marked difference in the glow curves pattern for the first and subsequent heating runs has been observed. It is suggested that these changes may be due to the change in configurational coordinate system of F-centres due to impurity existing in different states.

ISSN:0033-7579    

DOI:10.1080/01422448308226423

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

The swelling and the lattice expansion of proton bombarded GaP single crystals are simultaneously measured for different proton doses by the “Talystep” method and by the Kossel technique, resp. The results reveal good agreement between the increase in interplanar spacing and the volume change in the damaged region

ISSN:0033-7579    

DOI:10.1080/01422448308226424

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0033-7579    

DOI:10.1080/01422448308226425

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor