Now showing items 1-10 of 50
Normal mode spectrum of the parallel-chain Β-sheet This is paper number 39 in a series on “Vibrational Analysis of Peptides, Polypeptides, and Proteins,” of which paper number 38 is Ref. 19.
(Wiley Subscription Services, Inc., A Wiley Company, 1988-06)
Normal mode calculations have been carried out for parallel-chain Β-sheet structures. These include the parallel-chain pleated sheet of poly( L -alanine) and the parallel-chain rippled sheet of polyglycine. Dipole derivative ...
Supercritical fluid jet expansions of polar aromatic carboxylic acids using simple derivatization with detection by resonant two-photon ionization
(Elsevier, 1988)
In this work simple derivatization is used as a means of enhancing the solubility of polar aromatic carboxylic acids in supercritical CO2 and N2O. The supercritical fluid is then expanded from 200 atm and 40[deg]C through ...
Dynamics of growth of silica particles from ammonia-catalyzed hydrolysis of tetra-ethyl-orthosilicate
(Elsevier, 1988-07)
The NH3-catalyzed formation of colloidal silica particles from tetra-ethyl-orthosilicate (TEOS) in methanol and ethanol is studied by means of light scattering and Raman spectroscopy. We find that the growth is characterized ...
Homogeneous enzyme-linked competitive binding assay for biotin based on the avidin-biotin interaction
(Elsevier, 1988)
A homogeneous enzyme-linked competitive-binding assay for biotin with glucose-6-phosphate dehydrogenase (G6PDH), is described. This assay is based on the interaction between a G6PDH/biotin conjugate with avidin, a natural ...
A total synthesis of the naturally occurring pyrrolo[2,3-]pyrimidine nucleoside, mycalisine A
(Elsevier, 1988)
The first total synthesis of mycalisine A, a pyrrolo[2,3-]pyrimidine nucleoside, was accomplished by a multi-step synthesis from toyocamycin.
Observation of coupled quasi-two-dimensional electronic excitations in tilted magnetic fields
(Elsevier, 1988)
We report on a magneto-Raman scattering investigation of free and donor-bound electrons in GaAs/AlxGa1-xAs quantum wells. For fields perpendicular to the layers, the spectra show intersubband transitions of photoexcited ...
Heat capacity and thermodynamic properties of ditungsten carbide, W2C1-x, from 10 to 1000 K
(Elsevier, 1988-06-30)
Thermodynamic properties of tungsten carbide, W2C0.833, have been derived from heat capacities measured by adiabatic calorimetry in the range 10-1000 K on a sample rich in this phase. The standard entropy of W2C0.833 was ...
The reaction of the highly functionalized copper reagents RCu(CN)ZnI.BF3 with aldehydes
(Elsevier, 1988)
The new copper reagent RCu(CN)ZnI 2, which may contain important functional groups like the ester, nitrile, enoate or imide group, react in the presence of BF3.OEt2 with aldehydes to afford polyfunctional secondary alcohols ...
The thermodynamics of ammonium indates I. The heat capacity of the ammonium pentachloroindate monohydrate salt (NH4)2InCl5 [middle dot] H2O from 8.5 to 349 K
(Elsevier, 1988-07)
The heat capacity of ammonium pentachloroindate monohydrate (NH4)2InCl5 [middle dot] H2O was measured from 8.5 to 349 K using adiabatic calorimetry. The curve of molar heat capacity against temperature is continuous, but ...