Electronic components used in spacecraft are susceptible to the radiation environment that causes detrimental effect which could jeopardize the mission. Much effort has been devoted to methodologies that would produce radiation tolerant or hardened devices hopefully with speed-power performance close to commercial parts. Recent development in combining radiation tolerance by design technique wi...

A nswer: Critical structures are spared from the harmful effects of radiation therapy through precise treatment planning that uses appropriate beam angles and blocking techniques. Although radiation therapy has proven to be a beneficial treatment modality for a number of benign and malignant diseases, tissue dose tolerance limitations must be considered carefully when planning and prescribing r...

in order to evaluate the results of abdominal radiation plus chemotherapy in cases with stage ii and iii of immunoproliferative small intestinal disease in comparison to chemotherapy alone, fifty-one patients referred to shiraz university of medical sciences' affiliated hospitals were studied between 1980 and 1994. out of them 38 patients who had an abdominal mass were gathered into two gr...

.> Introduction Patient-to-patient variations in the radiosensitivity of normal and neoplastic tissues are well known and recognized both in vivo(1.2) and in vitro studies. (3.6) The typical example is the autosomal recessive disease ataxia-telangiectasia (AT). ATM patients are extremely sensitive to ionizing radiation. The patients develop severe to fatal radiation reactions when treated by st...

The effects of moderate salinity on the responses of woody plants to UV-B radiation were investigated using two Populus species (Populus alba and Populus russkii). Under UV-B radiation, moderate salinity reduced the oxidation pressure in both species, as indicated by lower levels of cellular H2O2 and membrane peroxidation, and weakened the inhibition of photochemical efficiency expressed by O-J...

Significance Coping with UV-B is crucial for plant survival in sunlight. The photoreceptor UVR8 regulates gene expression associated photomorphogenesis, acclimation, and stress tolerance. photon reception by homodimers results monomerization, followed interaction the key signaling protein COP1. We have discovered a hypersensitive that confers strongly enhanced tolerance generated variant based ...

chip level. In turn, this enables cost benefits from reduced component count. Additionally, enhanced resource sharing leads to better performance. On-chip components can now be easily shared to improve resource utilization, such as core sharing via hyperthreading, shared caches, and I/O interfaces. However, the same features of multicore processors that offer benefits can also present drawbacks...

Research has shown that some plants respond to enhanced UV-B radiation by producing smaller and thicker leaves, by increasing the thickness of epidermis and concentration of UV-B absorbing compounds of their surface layers and activation of the antioxidant defence system. The response of high-altitude plants to UV-B radiation in controlled conditions is often less pronounced compared to low-alt...