introduction: nowadays ionizing radiation has a considerable contribution in medical diagnostic and treatment. using ionizing radiation is increasing rapidly, so biological effects of ionizing radiation should be considered more. x-rays in the range of diagnostic radiology have hazardous effects and risks that are defined as random effects. these effects obey the lnt hypothesis that occur at lo...

The phenomenon of cosmic shear, or distortion of images of distant sources unaccompanied by magnification, is an effective way of probing the content and state of the foreground Universe, because light rays do not have to pass through matter clumps in order to be sheared. It is shown that the delay in the arrival times between two simultaneously emitted photons that appear to be arriving from a...

Data from 82 studies (60 steer and 22 heifer studies) were compiled and analyzed to evaluate the effects of anabolic implants on feedlot performance and carcass traits. Dependent variables in the model included ADG, G:F, DMI, dressing percentage, HCW, and marbling score. Categories created for type and dosage of active compound were: low dose primarily estrogenic hormone (E2; LOW), moderate dos...

Radiation from natural and artificial elements bombards the earth The radiation environment depends on energy distribution particle spectra. affects most electronic components, especially ICs (ICs). High nuclear reactors space damage but earth's components also do. Semiconductors are radiation-sensitive, hence need shielding. operation performance of devices affected by these effects. type, ene...

male infertility is a distressingly common condition affecting about 1 in 20 of the male population. in a majority of the cases, the male partner produces sufficient numbers of spermatozoa to achieve fertilization but there are functional defects in these cells that prevent conception from occurring. in this study, the effects of wi-fi radiation on spermatogenesis, testes and testosterone of la...

Adult C57B1/Icrc female mice were given a single total body dose of 300r X-rays. They were mated with non-irradiated litter-mates and the progeny maintained over several generations. Some of the females of the 17th generation of this population gave birth to litters with phenotypic characters different from the original parents. At maturity the total gonadotrophins of the pituitaries of these a...

radiation exposure during pregnancy may have serious teratogenic effects to the fetus. in modern medical practice, there is an increasing dependence on imaging techniques in most medical specialties. therefore, checking the pregnancy status before imaging women of child bearing age is essential. lack of international regulations and standard protocols exposes the patient to unexpected fetal rad...