Ara
Toplam kayıt 13, listelenen: 11-13
Chionaeosides A-D, triterpene saponins from Paronychia chionaea
(Amer Chemical Soc, 2007)
Four new triterpenoid saponins, chionaeosides A-D (1-4) were isolated from the roots of Paronychia chionaea. On the basis of their spectroscopic data, the structures of the new saponins were established as 3-o-alpha-L-ar ...
Lightlike hypersurfaces in semi-Riemannian manifold with semi-symmetric non-metric connection
(Matematisk Inst, 2008)
In this paper, We Study lightlike hypersurfaces of a semi-Riemannian manifold admitting a semisymmetric non-metric connection. We give the equations of Gauss and Codazzi. Then, we obtain conditions under which the Ricci ...
Age-related changes in tissue and plasma zinc levels: Modulation by exogenously administered melatonin
(Taylor & Francis Inc, 2008)
Melatonin (MEL) is synthesized mainly in the pineal gland and derived from 5-hydroxytryptophan (5-HTP). Zinc (Zn) is one of the most important trace elements in the body. Zn and MEL levels are changed with aging. The aim ...