-
Article
Ricci-flat Graphs with Girth Four
Lin-Lu-Yau introduced a notion of Ricci curvature for graphs and obtained a complete classification for all Ricci-flat graphs with girth at least five. In this paper, we characterize all Ricci-flat graphs of g...
-
Article
Effect of resveratrol treatment on apoptosis and apoptotic pathways during boar semen freezing
Resveratrol (3,5,4'-trihydroxystilbene, RSV) has been widely used in mammalian cells, but whether it can be used during freezing boar semen is still unknown. The effects of RSV treatment during boar semen free...
-
Article
Linear arboricity of regular digraphs
A linear directed forest is a directed graph in which every component is a directed path. The linear arboricity la(D) of a digraph D is the minimum number of linear directed forests in D whose union covers all ar...
-
Article
Endoplasmic reticulum stress induced by oxidative stress in decidual cells: a possible mechanism of early pregnancy loss
Early pregnancy loss (EPL) is one of the most common complications of human reproduction. Combined with our previous proteomic studies on villous and decidual tissues of EPL, we found that alterations of the p...
-
Article
Open AccessInsufficient maintenance DNA methylation is associated with abnormal embryonic development
Early pregnancy loss (EPL) is a frustrating clinical problem, whose mechanisms are not completely understood. DNA methylation, which includes maintenance methylation and de novo methylation directed by DNA methyl...
