The radius of gyration of a polymer chain immersed in a low molecular weight solvent is known to vary monotonically with the solvent quality. Here, we consider the behavior of a chain immersed in a high molecular weight solvent (polymer melt). Unsurprisingly, we find that, as the incompatibility between the chain and the polymer melt is increased, the two limiting conformations of the chain are...

Ranking of fuzzy numbers play an important role in decision making, optimization, forecasting etc. fuzzy numbers must be ranked before an action is taken by a decision maker. In this paper we propose a new approach of the fuzzy ranking of generalized trapezoidal fuzzy numbers based on radius of gyration point of centroids. The main advantage of the proposed approach is that the proposed approac...

Using synchrotron radiation and the small-angle X-ray scattering technique we have measured the radii of gyration of a series of alanine-based alpha-helix-forming peptides of the composition Ace-(AAKAA)(n)-GY-NH(2), n=2-7, in aqueous solvent at 10(+/-1) degrees C. In contrast to other techniques typically used to study alpha-helices in isolation (such as nuclear magnetic resonance and circular ...

Sph site of pSL301 (Invitrogen). Colonies were screened for inserts by PCR with T7 and T3 sequences located outside the cloning site as primers. 10. Selected clones were manually sequenced as described [G. (1989)] with 5'-GACGTCGAC-CTGAGGTAATTATAACC-3' as primer. Sequence files were analyzed by means of the SAGE software group (7), which identifies the anchoring enzyme site with the proper spac...

This paper is concerned with the structural transition dynamics of the six-atom Morse cluster with zero total angular momentum, which serves as an illustrative example of the general reaction dynamics of isolated polyatomic molecules. It develops a methodology that highlights the interplay between the effects of the potential energy topography and those of the intrinsic geometry of the molecula...