Highly deformable and recoverable cross-linked hydrogels of 1,3-?-d and 1,3-?-d-glucans

Structural characterization of b-D-(13, 16)-linked glucans using NMR spectroscopy

Nondestructive structural analysis of a series of b-D-(1“3, 1“6)-linked glucans (laminaran, curdlan, yeast glucan, scleroglucan, etc.) was performed using two-dimensional NMR spectroscopy. The relative ratios of H-1 at different AGUs provided the information about DPn and DB. The a-, and b-anomeric protons on reducing terminals were assigned at 5.02 5.03 ppm (J 3.6 3.7 Hz), and 4.42 4.43 ppm (J...

Combined 13 C – D and D – D clumping in methane : Methods and preliminary results

The stable isotopic composition of methane (e.g., dD and dC values) is often used as a tracer for its sources and sinks. Conventional dD and dC measurements represent the average isotope ratios of all ten isotopologues of methane, though they are effectively controlled by the relative abundances of the three most abundant species: CH4, CH4, and CH3D. The precise relative abundances of the other...

Inherited pericentric inversion of a group D (13-15) chromosome.

13 Cross - Cutting Issues

Conservative estimates in the United States predict that the number of persons aged 65 years and over will grow from 35 million in 2000 to 78 million in 2011, accounting for more than 20% of the overall population. 1 The number of those aged 85 years and over will grow from 4 million to 18.2 million. If life expectancy continues to increase at the same rate seen in the 1990s, the number of olde...

Coupling and higher - order effects in the 12 C ( d , p ) 13 C and 13 C ( p , d ) 12 C reactions

Coupled-channel calculations are performed for the 12C(d,p)13C and 13C(p,d)12C reactions between 7 and 60 MeV to study the effect of inelastic couplings in transfer reactions. The effect of treating transfer beyond Born approximation is also addressed. The coupling to the 12C 2+ state is found to change the peak cross section by up to 15%. Effects beyond Born approximation lead to a significant...