Testing ecological theory with lianas

Testing String Theory with CMB

Future detection/non-detection of tensor modes from inflation in CMB observations presents a unique way to test certain features of string theory. Current limit on the ratio of tensor to scalar perturbations, r = T/S, is r <∼ 0.3, future detection may take place for r >∼ 10−2 − 10−3. At present all known string theory inflation models predict tensor modes well below the level of detection. Ther...

Ecological Systems Theory

Ecological Systems Theory

Ecological Systems Theory

Stilbenoids in lianas of Gnetum parvifolium.

Five new stilbene dimers were isolated from the lianas of Gnetum parvifolium in addition to known stilbenoids. The structures of the compounds were established on the basis of spectroscopic evidence, including long-range coupling and nuclear Overhauser effect experiments, in NMR spectrum. Among the isolates, 2b-hydroxyampelopsin F showed potent inhibitory activity in the Maillard reaction.