April 7 is known as “World Health Day” and one of the main responsibilities of World Health Organization is to improve the knowledge of the world population in order to prevent various diseases(1). This organization selects an illness or a disorder in terms of a unique slogan in order to plan for educational, prevention, curative and re-strengthening the operation of countries aroun...

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Survival curves for biological cells irradiated with gamma rays (and other low LET radiations) cannot be properly interpreted without examining the implications of these interpretations for high LET radiations. The theory of RBE demands that the RBE of any high LET radiation field is at most one when the probability for cell killing as a function of the absorbed dose of gamma rays is linear or ...

The understanding of the pion structure as described in terms of transverse-momentum-dependent parton distribution functions (TMDs) is of importance for the interpretation of currently ongoing Drell-Yan experiments with pion beams. In this work we discuss the description of pion TMDs beyond leading twist in a pion model formulated in the light-front constituent framework. For comparison, we als...