1MARCO LUPATTELLI, MD, 2MATTHEW ALCUSKY, PharmD, MS, 3CYNTHIA ARISTEI, MD, 1RITA BELLAVITA, MD, 4BARBARA A JERECZEK-FOSSA, MD, PhD, 2JOHN MCANA, PhD, 5TIMOTHY N SHOWALTER, MD, MPH and 2VITTORIO MAIO, PharmD, MS, MSPH Radiation Oncology Center, Perugia General Hospital, Perugia, Italy College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA Radiation Oncology Section, Dep...

In an insightful approach, Robinson and Wilczek proposed that Hawking radiation can be obtained as the compensation of a breakdown of general covariance and gauge invariance and the radiation is a black body radiation at Hawking temperature. We apply this method to two types of black holes in three dimensional spacetime, which share the general form of the metric in that the tt component of the...

The radiation of relativistic charged particles for the quasiperiodic motion in a transparent medium is considered. For motion of the general kind the differential probability of the process is obtained. For planar motion the spectral intensity of radiation is found. The different cases of radiation in the medium-filled undulators are studied. In particular, the influence of Cherenkov radiation...

High energy muon colliders, such as the TeV-scale conceptual designs now being considered, are found to produce enough high energy neutrinos to constitute a potentially serious off-site radiation hazard in the neighbourhood of the accelerator site. A general characterization of this radiation hazard is given, followed by an order-of-magnitude calculation for the off-site annual radiation dose a...

A clear relationship between dose of radiation and mortality in humans is still not known because of lack of human data that would enable to determine human tolerance in total body irradiation. Human data for analysis have been primarily from radiation accidents, radiotherapy and the atomic bomb victims. A general formula that predicts mortality probability as a function of dose rate and durati...

Background: Natural radionuclides in rock samples, primarily 238U (uranium), 232Th (thorium) and 40K (potassium), are the main source of radiation exposure to workers and general public and their measurement is of paramount importance from radiation protection point of view. Materials and Methods: Gamma spectrometry using HPGe detector was used to measure the radioactivity and assess the radiol...

Diagnostic radiology procedures, such as computed tomography (CT) and X-ray, are an increasing source of ionising radiation exposure to our community. Exposure to ionising radiation is associated with increased risk of malignancy, proportional to the level of exposure. Every diagnostic test using ionising radiation needs to be justified by clinical need. General practitioners need a working kno...

This paper proposes the modeling and simulation of the incident solar radiation on a horizontal and inclined plane in the city of Agadir. To do, we adopt the Kasten model which takes the atmospheric turbidity into consideration in order to estimate the incidental solar radiation on a horizontal plane. In addition we determine the incident solar radiation on an inclined plane from the global hor...

Introduction Adaptive radiation is defined as the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage (Simpson 1953; Schluter 2000). Examples include the diversification of Darwin’s finches on the Galápagos islands, Anolis lizards on Caribbean islands, Hawaiian silverswords, a mainland radiation of columbines, and cichlids of the East African Great Lakes, among...

Atmospheric radiation budgets are strongly affected by the horizontal and vertical distributions of cloud systems. With the horizontal resolution of several hundred kilometers in general circulation models (GCMs), parameterization of cloud vertical overlap and horizontal inhomogeneity in radiation schemes has long been a major challenge for climate simulations (Stephens 1984; Stephens et al. 20...