Now showing items 11-20 of 51
The exchange reaction of tetramethyldipnictogens with dimethyldichalcogenides
(Elsevier, 1986-07-15)
Tetramethyldipnictogens Me4E2 (E = P, As, Sb, Bi) undergo exchange reactions with dimethyldichalcogenides Me2A2 (A = S, Se, Te) to produce the corresponding (dimethylpnicto)methylchalcogenides Me2EAMe. These compounds have ...
N-terminal sequence of human leukocyte glycoprotein Mol: conservation across species and homology to platelet IIb/IIIa
(Elsevier, 1986-12-12)
Mo1 and gp160-gp93 are two surface membrane glycoprotein heterodimers present on granulocytes and monocytes derived from humans and guinea pigs, respectively. We purified both antigens and found that their alpha subunits ...
Silver(I) sulfide: Ag2S Heat capacity from 5 to 1000 K, thermodynamic properties, and transitions
(Elsevier, 1986-04)
The heat capacity of Ag2S has been measured by adiabatic-shield calorimetry from 5 to 1000 K. The heat capacity increases regularly up to about 445 K where the pre-transitional contribution causes rapidly rising values. ...
Report on the catalytic activity of 6-heteropolymolybdates as potential Fischer-Tropsch synthesis catalysts
(Elsevier, 1986-02-14)
Unsupported and supported decomposition products of 6-heteropolymolybdates were tested as possible Fischer-Tropsch synthesis catalysts. Depending on the heteroatom, the activity changes significantly and the best supported ...
The mechanism of the oxidation of propene to acrolein over copper oxide
(Elsevier, 1986-05)
The oxidation of stereo-labeled propene to acrolein over copper oxide was studied to obtain information about the nature of the intermediates involved in the second hydrogen abstraction and oxygen incorporation process. ...
Elevated temperature produces cystine depletion in cystinotic fibroblasts
(Elsevier, 1986-12-10)
Increasing the incubation temperature of cystinotic fibroblasts to 40 or 43[deg]C produces a 70-80% decrease in lysosomal cystine content within 24-48 h. This effect is probably mediated by an altered substrate affinity ...
Flash-induced enhancements in the proton NMR relaxation rate of Photosystem II particles
(Elsevier, 1986-07-02)
Flash-induced enhancements in the NMR spin-lattice relaxation rate of solvent protons have been detected in suspensions of Photosystem II particles. The relaxation enhancements are small (less than 1% of background) and ...
Electron spin resonance spectra of some paramagnetic hydride complexes of niobium(IV) and tantalum(IV)
(Elsevier, 1986-03-03)
Frozen solution electron spin resonance spectra show that the unpaired electron is in a dx2-y2 orbital on the metal in the complexes TaCl2H2(drnpe)2, TaCl2H2(PMe3)4 and NbCl2 H2 (dmpe)2, (dmpe = Me2- PCH2CH2PMe2).
The exchange reaction of tetramethyl-diphosphine, -diarsine, -distibine and -dibismuthine
(Elsevier, 1986-04-08)
Tetramethyldiphosphine and tetramethyldiarsine undergo an exchange reaction to give (dimethylarsino)dimethylphosphine. The equilibrium constant at 25[deg]C in benzene is found to be 0.26. Similarly, mixtures of ...
Cyanobacterial and chloroplast F1-ATPases: cross-reconstitution of photophosphorylation and subunit immunological relationships
(Elsevier, 1986-09-10)
The photosynthetic F1-ATPase from the cyanobacterium Spirulina platensis was recently purified in a five-subunit, reconstitutively active form (Hicks, D.B. and Yocum, C.F. (1986) Arch. Biochem. Biophys. 245, 220-229). Here ...