The 8-epimer of prostaglandin F(2alpha), a marker of lipid peroxidation and oxidative stress, is decreased in the nipple aspirate fluid of women with breast cancer

none8sìopenMANNELLO F.; TONTI GA; PAGLIARANI S; BENEDETTI S; CANESTRARI F; ZHU W; QIN W; SAUTER ERMannello, Ferdinando; Tonti, GAETANA ANNA MARIA; Pagliarani, S; Benedetti, Serena; Canestrari, Franco; Zhu, W; Qin, W; Sauter, E

Formal matched asymptotics for degenerate Ricci flow neckpinches

Gu and Zhu have shown that Type-II Ricci flow singularities develop from nongeneric rotationally symmetric Riemannian metrics on $S^m$, for all $m\geq 3$. In this paper, we describe and provide plausibility arguments for a detailed asymptotic profile and rate of curvature blow-up that we predict such solutions exhibit

Conformally flat manifolds with nonnegative Ricci curvature

revised version, added reference to previous paper by S. Zhu on the same subjectInternational audienceWe show that complete conformally flat manifolds of dimension n>2 with nonnegative Ricci curvature enjoy nice rigidity properties: they are either flat, or locally isometric to a product of a sphere and a line, or are globally conformally equivalent to flat space or to a spherical spaceform. This extends previous works by Q.-M. Cheng, M.H. Noronha, B.-L. Chen and X.-P. Zhu, and S. Zhu