Within a few days after total-body X-ray irradiation, leu kemia vims particles could be observed in several organs of irradiated C3Hf mice. This was observed not only after frac tionated irradiation (5 X 150 R), but also after a single (250 R) total-body X-ray irradiation. Electron microscopic examina tion of several organs from the irradiated mice, such as spleen, lymph nodes, and bone marrow,...

Within a few days after total-body X-ray irradiation, leu kemia vims particles could be observed in several organs of irradiated C3Hf mice. This was observed not only after frac tionated irradiation (5 X 150 R), but also after a single (250 R) total-body X-ray irradiation. Electron microscopic examina tion of several organs from the irradiated mice, such as spleen, lymph nodes, and bone marrow,...

We propose the B c → B * u γ decay as the most suitable probe for the flavour changing neutral transition c → uγ. We estimate the short and long distance contributions to this decay within the standard model and we find them to be comparable; this is in contrast to radia-tive decays of D mesons, that are completely dominated by the long distance contributions. Since the c → uγ transition is ver...

BACKGROUND Use of trans-radial route for cardiac catheterization is on the rise but is associated with increased radiation exposure to the operator. Our aim was to compare the radiation exposure, by taking fluoroscopy time (FT) as a surrogate of radiation exposure, to the operator with femoral and radial routes. METHODS This prospective observational study was carried out at Army Cardiac Cent...

In this study, we tested the influence of i.p. Bowman-Birk protease inhibitor (BBI) administration on oncogene expression in unirradiated and irradiated rat colonie mucosa. Total cellular RNA was collected from the colonie mucosa, and the levels of c-myc, c-fos, c-Ha-ras, c-EGFR, and c-actin mRNA were examined by standard dot and Northern blot analyses. The data demonstrate that BBI is capable ...

We propose the B c → B * u γ decay as the most suitable probe for the flavour changing neutral transition c → uγ. We estimate the short and long distance contributions to this decay within the standard model and we find them to be comparable; this is in contrast to radia-tive decays of D mesons, that are completely dominated by the long distance contributions. Since the c → uγ transition is ver...

Nitroxide compounds are stable free radicals which were previously investigated as hypoxic cell radiosensitizers. The stable nitroxide 4hydroxy-2,2,6,6-tetramethylpiperidine-JV-oxyl (Tempol) has recently been shown to protect aerated cells in culture against Superoxide gener ated from hypoxanthine/xanthine oxidase, hydrogen peroxide, and radia tion-induced cytotoxicity and to modestly sensitize...

The study aims at deriving the effective conductivity Kef of a three-dimensional heterogeneous medium whose local conductivity K(x) is a stationary and isotropic random space function, of lognormal distribution and finite integral scale IY . We adopt a model of spherical inclusions of different K, of lognormal pdf, that we coin as a multi-indicator structure. The inclusions are inserted at rand...

Nanoparticles, with their selective targeting capabilities and superior efficacy, are becoming increasingly important in modern cancer therapy and starting to overshadow traditional cancer therapies such as chemotherapy, radia‐ tion and surgery. ZnO nanoparticles, with their unique properties such as biocompatibility, high selectivity, enhanced cytotoxicity and easy synthesis, may be a promisin...

The present study of the anti-leukemic action of combinations of certain rather diverse agents known to prolong survival time of mice with trans planted leukemia was prompted by the observa tion of an apparent anti-leukemic synergism be tween urethan and methyl-bis(@-chloroethyl)a mine (G). Urethan (3, 4, 5, 11), methyl-bis(@-chloroethyl) amine (HN@) (3, 4, 9), benzene (8, 6), potassium arsenit...