Exposure of Venezuelan equine encephalomyelitis (VEE) virus (at -70 C) to 6 x 10 r gamma-radiation (Co) resulted in loss of lethality for young adult mice and guinea pigs, and loss of capacity to produce plaques or cytopathic effects in tissue culture. The suckling mouse was more sensitive for detecting live virus in radiated suspensions than was the adult mouse or guinea pig. Live virus was de...

The paper considers the relationship between the quality of radiation and biological lesions produced by ionizing radiation. The paper provides a brief review of the modelling of induction of strand breakage, chromosome aberration, revertant mutation in bacteria and Drosophila melanogaster. Experimental data are presented for the relative biological effectiveness of helium ions and alpha-partic...

Purpose: Discovery of agents that protect or mitigate normal tissue from radiation injury during radiotherapy, accidents, or terrorist attacks is of importance. Specifically, bone marrow insufficiency, with possible infection due to immunosuppression, can occur after total body irradiation (TBI) or regional irradiation and is a major component of the acute radiation syndrome. The purpose of thi...

ITRIC oxide (NO) increases X-radiation damage approximately the same Namount as equal quantities of oxygen in Shigella flexneri ( HOWARD-FLANDERS 1957), Vicia faba (KIHLMAN 1958), ascites tumor cells (GRAY, GREEN, and HAWES 1958), and barley seeds with greater than 12 percent water content (SPARRMAN, EHRENBERG, and EHRENBERG 1959). These observations, as well as later comparisons of these gases...

egg-laying hens were immunized with the echis carinatus venom and the resulting antibodies were extracted from egg yolk by four different purification methods. the chicken egg yolk antibodies were purified by the water dilution method, polyethylene glycol (peg) and ammonium sulphate precipitation method, chloroform extraction and the lithium sulphate precipitation method. these methods were com...

in this study, a numerical model was developed to investigate the two-dimensional heat transfer in a homogenous finite cylinder to predict the local temperature and sterilizing value during caviar pasteurization. a fixed grid finite difference method was used in the solution of heat transfer equations according to crank-nicolson’s scheme. the model was validated by comparison of the experimenta...

      In the present study, aqueous solutions of some copper-complexing ligands were screened for their cytotoxicity using brine shrimp lethality test. Among the ligands tested, diacetyl-bis(N4-methylthiosemicarbazones) (ATSM) proved to be the most safe and non-toxic compound (2% lethality at 10 ppm), while pyruvaldehyde Bis(N4-methyl)thiosemicarbazone (P...

J Nucl Med. J. A. Gantz and R. I. H. Wang Reduction in Radiation Lethality by Chemical Mixture and Bone Marrow in Mice http://jnm.snmjournals.org/content/5/8/606.citation This article and updated information are available at: http://jnm.snmjournals.org/site/subscriptions/online.xhtml Information about subscriptions to JNM can be found at: http://jnm.snmjournals.org/site/misc/permission.xhtml In...

pattern by making it difficult to delimit sectors clearly. Although the data at hand precluded the possibility of making rigorous comparisons between plants arising from seed subjected to thermal neutrons and plants from x-irradiated seed, no developmental or morphological disturbances or lethality patterns in Datura unique to either kind of treatment were detected. Caldecott, Frolik, and Morri...