Now showing items 71-80 of 640
Vibrational analysis of peptides, polypeptides, and proteins. XVIII. Conformational sensitivity of the Α-helix spectrum: Α I - and Α II -Poly( L -alanine)
(Wiley Subscription Services, Inc., A Wiley Company, 1984-05)
The Α II -helix (φ = −70.47°, Ψ = −35.75°) is a structure having the same n and h as the (standard) Α I -helix (φ = −57.37°, Ψ = −47.49°). Its conformational angles are commonly found in proteins. Using an improved ...
Thermophysics of metal alkanoates III. Heat capacities and thermodynamic properties of lithium and potassium propanoates
(Elsevier, 1984-01)
At 298.15 K, the values of Cp, m/R, Smo/R, {Hmo - Hmo(0)}/R, and {Gmo - Hmo(0)}/RT ar 15.58, 17.13, 2588.6 K, and -8.445 for CH3CH2CO2Li(cr), and 17.30, 21.16, 3134.0 K, and -10.647 for CH3CH2CO2K(cr). The energetics and ...
Potentiometric ion- and bio-selective electrodes based on asymmetric cellulose acetate membranes
(Elsevier, 1989)
The potentiometric response properties of ammonium-, carbonate-, and proton-selective electrodes prepared by incorporating appropriate neutral carriers within novel asymmetric cellulose acetate membranes are reported. The ...
Thermal resistivity of layered 4He films on ZYX graphite below 2 K
(Elsevier, 1980-04-01)
Thermal resistance and vapor pressure isotherms were taken near superfluid onset for ultra-thin helium films adsorbed on a ZYX graphite wafer between 1-2 K and 3-7 atomic layers. Our data are consistent with previous ...
Increased synthesis of phosphatidylcholine by rat lung following premature birth
(Elsevier, 1980-01-18)
Pregnant rats were delivered prematurely at 20 days and 21 days gestation (2 and 1 day premature). The survival was 52 +/- 3% at 20 days gestation and 100% at 21 days gestation. [Me-14C]Choline incorporation into ...
The hydrophobic effect: Formation of micelles and biological membranes, Charles Tanford, Wiley-Interscience, New York, 1980, 233 pp. price: $18.50.
(John Wiley & Sons, Inc., 1980-10)
No Abstract.
Fragments of human growth hormone produced by digestion with bromelain : Chemistry and biological properties
(Elsevier, 1983-01-12)
In an effort to produce small discrete fragments of human growth hormone (GH), we examine the action of the proteolytic enzyme, bromelain, on this molecule. Purified human GH incubated for 40 min at 22[deg]C with crude ...
[omega]-Difluoroamino carboxylic acids: Readily accessible fluorine-labeled fatty acid analogs
(Elsevier, 1983-05)
15-Difluoroamino-pentadecanoic acid and 12-difluoroamino-dodecanoic acid were prepared by treating the corresponding lactams with F2 in aqueous acetonitrile. The intermediate N-fluorolactams were also isolated. Whereas ...