Las plantas responden a cambios bióticos y abióticos acorde su plasticidad fenotípica. Estas variaciones pueden expresarse en características relacionadas la morfología foliar, crecimiento defoliación. Este estudio evalúa influencia de edad las hojas sobre foliares, relación con defoliación tres especies forrajeras, Tithonia diversifolia, Morus alba Moringa oleifera. M. oleifera mostró mayores ...

our studi es have shown normal cyclical patterns of ovarian stero ids and pituitary gonadotropines in pa tients with congenital absccncc o f th e uteru s. it appears that the life-long abscence of a fun ctioning uterus has no effect o n the fun ctional life span o f t he co rpus lurer um, but may have some effect in the level o f estrogenes iu th e seco nd half of the cycle.

Open Source Software (OSS) and Ecosystems (SECO) are two emergent research areas in software engineering. We are interested on the published works that join these two topics, to do it we used a well-known technique called Systematic Literature Review (SLR).

A viable route has been developed for the selective synthesis of the 4→6-linked catechin dimers, scarcely accessible from Nature and/or through synthesis. An acyclic nucleophilic catechin precursor (seco-catechin) was used for the regioselective union with an electrophilic catechin unit, and subsequent pyran cyclization gave the desired 4→6-linked dimers, i.e., procyanidin B6 and catechin-(4α→6...

from the Caribbean “fire sponge” Tedania ignis in 1984; its relative and absolute structure was determined by X-ray analysis and revealed an unusual structural feature: four labile aldol units, an 18-membered lactone formed at a primary hydroxyl instead of the usual secondary hydroxyl, and an a-epoxy alcohol. Because of its novel and complex structure as well as strong biological activity, 1 ha...

BACKGROUND Obesity is a pathological state caused by abnormal or excessive accumulation of fat. Swietenia mahogani JACQ., known as West Indian mahogany, is a medium-sized semi-evergreen tree belonging to Meliaceae. Their seeds are used in Indonesian folk medicine as a treatment for hypertension, diabetes, malaria, and it also has anti-feedant activities. The major components of S. mahogani are ...