Now showing items 31-40 of 67
Thermophysics of the lanthanide trihydroxides II. Heat capacities from 10 to 350 K of Nd(OH)3 and Tb(OH)3. Lattice and Schottky contributions
(Elsevier, 1980-04)
Heat capacities have been measured from near 7 to 350 K for Nd(OH)3 and Tb(OH)3 and the derived thermophysical properties evaluated using previously reported heat capacities at lower temperatures. At 298.15 K the values ...
Inhibition by lead of human erythrocyte (Na+ + K+)-adenosine triphosphatase associated with binding of 210Pb to membrane fragments
(Elsevier, 1980-07-16)
Fragmented human erythrocyte membranes were exposed to PbCl2 for 10-40 min at 23[deg]C prior to (Na+ + K+)-ATPase assay. Inhibition increased with exposure time. Enzyme activity in 5 [mu]g membrane protein was inhibited ...
Vibrational analysis of peptides, polypeptides, and proteins. V. Normal vibrations of Β-turns
(Wiley Subscription Services, Inc., A Wiley Company, 1980-01)
The normal modes have been calculated for Β-turns of types I, II, III, I′, II′, and III′. The complete set of frequencies is given for the first three structures; only the amide I, II, and III modes are given for the latter ...
The heat capacity of NH4Br from 265 to 550 K the II-to-I transition
(Elsevier, 1980-08)
The heat capacity of NH4Br has been measured from 265 to 550 K by precision adiabatic calorimetry. The results of these measurements were combined with existing low-temperature results to give thermodynamic functions up ...
Yield behavior of unoriented and oriented polycarbonate and polypropylene as influenced by temperature
(Elsevier, 1980-05)
The yield behaviors of an amorphous polymer (polycarbonate) and a crystalline polymer (polypropylene) were investigated over certain ranges of temperature. Both polymers were used in an unoriented (isotropic) and an oriented ...
Vibrational analysis of peptides, polypeptides, and proteins. VI. Assignment of Β-turn modes in insulin and other proteins
(Wiley Subscription Services, Inc., A Wiley Company, 1980-01)
The normal modes have been calculated for structures having the dihedral angles of the four Β-turns of insulin. Frequencies are predicted in the amide I region near 1652 and 1680 cm −1 . The former overlaps the Α-helix ...
SOME OBSERVATIONS ON SMALL FATIGUE CRACKS IN A SUPERALLOY
(Blackwell Publishing Ltd, 1980-07)
A new high-pressure recycle-flow calorimeter and results of determinations with ethane
(Elsevier, 1980-02)
A new recycle-flow calorimeter is described with which the thermodynamic properties of fluids can be determined between pressures of 2 to 20 MPa and temperatures of 90 to 400 K. Precise control of both flowrate and pressure ...
On collisionally enhanced laser pumping of supersonic jets of SF6
(Elsevier, 1980-12-01)
Electron-diffraction analyses of SF6 molecules in a microjet irradiated by a cw infrared laser are reported. Excitations of several photons per molecule are achieved in the collisional region extending for the order of a ...
Syntheses of polyethylenimine containing asymmetric nucleic acid base derivatives as grafted pendants
(John Wiley & Sons, Inc., 1980-04)
Preparations of new model polymers of polynucleotides with linear polyethylenimine (PEI) backbones and optically active nucleic acid base derivatives as pending side chains are described. (±)-2-(Thymin-1-yl)propionic acid ...