49 research outputs found
Compactification on negatively curved manifolds
We show that string/M theory compactifications to maximally symmetric
space-times using manifolds whose scalar curvature is everywhere negative, must
have significant warping, large stringy corrections, or both.Comment: 18 pages, JHEP3.cl
Peroxidação lipídica e vitamina E no soro e no fluido folicular de mulheres inférteis com endometriose submetidas à estimulação ovariana controlada
Atributos físicos do solo e produtividade da soja em sistema de integração lavoura-pecuária com braquiária e soja
Influência da altura de pastejo de azevém e aveia em atributos físicos de um Latossolo Vermelho distroférrico, após sete anos sob integração lavoura-pecuária
Association between EcoRI fragment-length polymorphism of the immunoglobulin lambda variable 8 (IGLV8) gene family with rheumatoid arthritis and systemic lupus erythematosus
Oxidative stress in pregnancy and fertility pathologies
Oxidative stress designates the state of imbalance between reactive oxygen species (ROS) production and antioxidant levels. In a healthy placenta, there is an increase in ROS production, due to formation of new tissues and inherent metabolism, but this is balanced by higher levels of antioxidants. However, this balance is lost in some situations, with a consequent increase in oxidative stress levels. Oxidative stress has been implicated in several placental disorders and pregnancy pathologies. The present review intends to summarize what is known about the relationship between oxidative stress and well-known pregnancy disorders