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Vitamin D protects endothelial cells from irradiation-induced senescence and apoptosis by modulating MAPK/SirT1 axis
PurposeRadiotherapy toxicity is related to oxidative stress-mediated endothelial dysfunction. Here, we investigated on radioprotective properties of Vitamin D (Vit.D) on human endothelial cellsExpand
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Axial collimation in the Kerr metric (astrophysical jets)
Under suitable physical conditions, the vortical geodesics in the Kerr metric can collimate towards the symmetry axis. The authors study the constraints on the rate of change of the parameters whichExpand
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Time machine and geodesic motion in Kerr metric
The existence of nontrivial causality violation is a peculiar property of the space-time around a naked singularity. In the case of Kerr metric witha > m we have found that for a particular class ofExpand
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General relativity and gravitation : invited papers and discussion reports of the 10th International Conference on General Relativity and Gravitation, Padua, July 3-8, 1983
The Tenth International Conference on General Relativity and Gravitation (GR10) was held from July 3 to July 8, 1983, in Padova, Italy. These Conferences take place every three years, under theExpand
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