Results 221 to 230 of about 2,170,479 (268)
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The Virial and Molecular Structure

The Journal of Chemical Physics, 1933
The virial theorem can be applied to a molecule, assuming that external forces are applied to keep the nuclei fixed. The mean electronic kinetic energy is then the negative of the mean total internal energy, plus a term arising from the virial of the external force.
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Wavelets and molecular structure

Journal of Computer-Aided Molecular Design, 1996
The wavelet method offers possibilities for display, editing, and topological comparison of proteins at a user-specified level of detail. Wavelets are a mathematical tool that first found application in signal processing. The multiresolution analysis of a signal via wavelets provides a hierarchical series of "best' lower-resolution approximations.
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On the Molecular Structure of Collagen

Nature, 1969
Several polytripeptide and polyhexapeptide models of collagen have the same triple helical conformation with one NH…O interchain H bond per tripeptide. Collagen itself probably has this structure.
W, Traub, A, Yonath, D M, Segal
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Inference of molecular structure

Proceedings of the 1974 annual conference on XX - ACM '74, 1974
The Heuristic DENDRAL Program focuses on (1) understanding the processes of scientific inference in problems involving the induction of hypotheses from empirical data, and (2) implementation of a heuristic program for solving such problems in a domain of biomedical interest.
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The structure of a molecular motor

Current Biology, 1993
Two proteins, actin and myosin, together form a molec- ular motor that produces the work performed by mus- cle tissues, as well as many of the movements seen in all eukaryotic cells. IJntil recently, high resolution struc- tures of these two proteins have not been available.
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Chirality Codes and Molecular Structure

Journal of Chemical Information and Computer Sciences, 2004
Some time ago a structure-descriptor, named "chirality code", was put forward [J. Chem. Inf. Comput. Sci. 2001, 41, 369-375], aimed at distinguishing between enantiomers. The chirality code is a sequence of (typically 100) numbers, being equal to the value of a certain "chirality function" at equidistant points within a chosen interval.
João Aires-de-Sousa   +3 more
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The Molecular Structure of Glycogens

1957
Publisher Summary This chapter discusses the molecular structure of glycogens. Glycogens, from vertebrate, invertebrate, bacterial, and yeast cells, are multiply-branched molecules (molecular weight ∼10 7 ) consisting of chains of α-(1 → 4)-linked D-glucose residues.
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Molecular shapes and molecular structures

Chemical Physics Letters, 1986
Abstract The first part is a response to E.B. Wilson's remarks about molecular structure at the 1979 Sanibel Symposium; his proposed extension of the notion of “potential energy surface” is a convention, not a part of fundamental molecular quantum theory.
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Viscosity and Molecular Structure

Annals of the New York Academy of Sciences, 1951
Publisher Summary This chapter describes the viscosity of molecules and the structure of molecules. Within the framework of a corresponding states system, the viscosity of liquids can be examined most easily if comparisons are confined to specific regions.
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The relation of microscopic structure to molecular structure

Quarterly Reviews of Biophysics, 1968
What I shall try to do in this essay is not to produce a serious, accurate account of the immense amount of work in this field but, rather, to comment in a very general way on some of the new ideas in the advances of molecular biology, on the background of classical biological thought both histological and biochemical.
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