Now showing items 171-178 of 178
Parton spin asymmetries in polarized hadrons at high energies
(Elsevier, 1986-09-22)
The predictions of perturbative QCD for the evolution of quark and gluon distributions for polarized hadrons, in general, and for polarized protons, in particular, are developed. Analytical and numerical studies suggest ...
Radiolabeled antibodies, albumin and antimony sulfide colloid: A comparison as lymphoscintigraphic agents
(Elsevier, 1988)
The kinetics of lymph node and systemic uptake of members of three different classes of lymphoscintigraphic agents were studied in normal laboratory rats. 99mTc antimony trisulfide colloid (TcSbC), 99mTc human serum albumin ...
A captive solvent method for rapid N-[11C]methylation of secondary amides: Application to the benzodiazepine, 4'-chlorodiazepam (RO5-4864)
(Elsevier, 1988)
[11C]4'-Chlorodiazepam (RO5-4864), for PET studies of peripheral benzodiazepine receptors, was synthesized by alkylation of 1-desmethyl-4'-chlorodiazepam, in a small volume of acetone adsorbed on acrylic yarn, with [11C]methyl ...
Synthesis of a high specific activity 125I-labeled analog of PK 11195, potential agent for SPECT imaging of the peripheral benzodiazepine binding site
(Elsevier, 1989)
The peripheral benzodiazepine binding site ligand PK 11195 has been 125I-labeled by direct displacement of aromatic chlorine under solid-state conditions in 50-76% radiochemical yield and >94% radiochemical purity. ...
Proposed new reactor-activated positron source for intense slow e+ beam production
(Elsevier, 1988-03-01)
A novel method is suggested for producing a new positron (e+) emitting isotope in a nuclear reactor with application to slow e+ beams. The initial radiated sample is 124Xe which is transformed to 126I by two neutron ...
Retractable carbon fibre targets for measuring beam profiles at the SLC collision point
(Elsevier, 1989-06-15)
Retractable targets of carbon fibres with nominal diameters of 30, 7 and 4.5 [mu]m have been in use at the collision point of the SLC (the SLAC Linear Collider). The target mechanism is compatible with the Mark II detector ...
Observations on horizontal symmetries and flavor changing neutral currents
(Elsevier, 1982-04-26)
We present a detailed study of the possibility of having a horizontal gauge symmetry, in addition to SU(3)c x SU(2)L x U(1). Grand unification is not used as a constraint. We concentrate on the horizontal group SU(3)H. ...
Neutrino astrophysics with IMB: past, present, and future
(Elsevier, 1988-03)
A burst of eight neutrino interactions occurring over a six second interval had been observed with the IMB detector. The closeness in time of the burst to the optical discovery of Supernova 1987a suggests that the neutrinos ...