Now showing items 1-10 of 73
Vibrational analysis of crystalline diketopiperazine--II. Normal mode calculations
(Elsevier, 1984)
Based on our Raman and i.r. [1] data and assignments for DKP and five of its isotopic derivatives, we have refined an intramolecular force field in a non-redundant basis. This analysis shows that the cis peptide group may ...
Histological localization of binding sites of [alpha]-bungarotoxin and of antibodies specific to acetylcholine receptor in goldfish optic nerve and tectum
(Elsevier, 1980-07-21)
Goldfish optic nerve as well as ganglion cell neurites grown in culture selectively bind rhodamine-labeled [alpha]-bungarotoxin following tissue fixation. Binding is competed for by unlabeled bungarotoxin, by carbamylcholine ...
The structure of crystalline and membrane-bound gramicidin A by vibrational analysis
(Elsevier, 1984-12-28)
The results of normal mode calculations on the [beta]4.4, [beta]6.3, [up arrow, down arrow][beta]5.6, and [up arrow, down arrow]][beta]7.2 structures of gramicidin A are compared with infrared and Raman spectra of crystalline ...
Frequency of neoplasia in systemic lupus erythematosus and rheumatoid arthritis
(John Wiley & Sons, Inc., 1976-11)
A patient population admitted to the hospital for either SLE or RA was surveyed for the subsequent development of neoplasms. The frequency of neoplasm in SLE patients appeared to be exaggerated, whereas the frequency of ...
Vibrational analysis of 2,2,3-trichlorobutane and a force field for 2,2-dichloropropane
(Elsevier, 1990)
The infrared and Raman spectra of 2,2,3-dichlorobutane have been analysed in terms of normal modes calculated from a force field for secondary dichlorides refined using this molecule as well as 2,2-dichlorobutane and ...
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 ...
Lateral mobility of tetramethylrhodamine (TMR) labelled G protein [alpha] and [beta][gamma] subunits in NG 108-15 cells
(Elsevier, 1994-08)
Multi-step signal transducing events, such as those mediated by G proteins, have been difficult to study in intact cells. We fluorescently labelled G protein subunits, tetramethylrhodamine-[alpha]O (TMR-[alpha]O) and ...
Vibrational analysis of 2,3,4-trichloropentanes
(Elsevier, 1990)
One meso form and the racemic isomer of 2,3,4-trichloropentane have been synthesized, and their infrared and Raman spectra analysed on the basis of a general force field refined for multiply-chlorinated hydrocarbons. ...