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Cigarette Smoking Increases Oxidative Stress in Prostate Cancer Patients – A Pr...
Freitas, Mariana; Baldeiras, Inês; Proença, Teresa; Pascoal, Rui; Rabaça, Carlos; Valido, Frederico; Mota-Pinto, Anabela; Sarmento-Ribeiro, Ana BelaCigarette smoke is an oxidant, creating free radicals that are involved in carcinogenesis namely in Prostate Cancer (PC). However, a correlation between cigarette smoking and PC progression remains unclear. This study was directed to evaluate the correlation between cigarette smoking, Oxidative Stress (OS) and PC development and progression. The Total Antioxidant Status (TAS), Glutathione (GSH) and Malondialdeh...
Dirac's æther in curved spacetime-II: the geometric amplification of the cosmic...
Carvalho,Marcelo; Oliveira,Alexandre L.; Rabaça,Carlos R.We search for an amplification mechanism of the seed cosmic magnetic induction by studying a new version of the Dirac's æther in a curved cosmological background. We find that the variation of the scale factor R(t) with cosmic time brings to the magnetic field the desired effect of amplification, that we call geometric amplification.
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