The beta decay asymmetry parameter for /sup 35/Ar = /sup 35/Cl + e/sup +/ + nu/sub e/ has been remeasured in order to resolve a long standing puzzle. Previous asymmetry measurements, when combined with the comparative half-life, yield a value for the vector coupling constant, G/sub v/, that is ...

The beta decay asymmetry parameter for {sup 35}Ar {yields} {sup 35}Cl + e{sup +} + v{sub e} has been remeasured in order to resolve a long standing puzzle. Previous asymmetry measurements, when combined with the comparative half-life, yield a value for the vector coupling constant, G{sub v}, ...

Quadrupole coupling constants for Cl/sup 35/ in potassium tetrachloroplatinate were calculated on the assumption that the asymmetry parameter is zero. Spectra were obtained with a conventional Zeeman-modulated superregenerative spectrometer using lock-in detection. The quadrupole coupling constants were ...

The nuclear magnetic resonance shifts of CI/sup 35/ in aqueous solutions of alkali chlorides were determined using a high resolution NMH spectrometer. These small shifts probably represent the effect of the neighboring atom even in the highly ionic state. A similarity of these results to the quadrupole coupling constants of ...

A new assay for ATP sulfurylase (ATP:sulfate adenyltransferase, EC 2.7.7.4) has been devised, the key feature of which is the quantitative precipitation of the unreacted substrate as Na/sub 2/SO/sub 4/, in ethanol:water (5:1), leaving the product adenosine 5'-phosphosulfate (APS) in solution with an 80 percent yield. This separation procedure, coupled with the use of ...

(/sup 35/S)t-Butylbicyclophosphorothionate or (/sup 35/S)TBPS is an improved radioligand for the picrotoxinin binding site in rat brain synaptic membranes. The toxic isomers of the hexachlorocyclohexanes, polychlorobornanes, and chlorinated cyclodienes displace (/sup ...

Fusion-evaporation reactions with /sup 32/S, /sup 35/Cl and /sup 36/Ar beams on /sup 92/Mo, /sup 106/Cd and /sup 112/Sn targets have been used to search for new activities. The reaction products transported via a He-Jet system coupled to a mass-separator ...

The core polarization effects for the electric quadrupole moments of the neutron-rich {sup 31}Al, {sup 33}Al, and {sup 35}Al isotopes in the vicinity of the island of inversion are investigated by means of the microscopic particle-vibration coupling model in which the Skyrme Hartee-Fock-Bogoliubov and quasiparticle random-phase ...

S>Excitation energies of some low states of Cl/sup 35/, Ar/sup 37/, Cl/ sup 39/, and K/sup 41/ are calculated in the jj coupling scheme, independently of the details of the two-body nuclear interaction. Some pertinent experimenis are suggestsd to check the calculations. (auth)

The title compounds were chemically synthesized as their 5'-dimethoxytrityl derivatives by base-catalyzed reaction of {sup 35}S-enriched elemental sulfur with support-bound hydrogen phosphonate oligomer. This was derived from adamantane carbonyl chloride-activated coupling of nucleotide hydrogen phosphonate monomers, and ...

Because changes 5-HT_1A receptor number do not occur following repeated agonist treatment, we hypothesized that the basis for 5-HT_1A receptor desensitization involves changes in receptor-G protein coupling. We measured the effect of repeated agonist administration on 5-HT_1A receptor-stimulated ...

{sup 35}SO{sub 4}{sup 2{minus}} uptake by Atlantic lobster (Homarus americanus) hepatopancreatic epithelial brush border membrane vesicles (BBMV) was stimulated by internal Cl{sup {minus}}, but not internal HCO{sub 3}{sup {minus}}, or external Na{sup +}. Sulfate-chloride exchange was stimulated by inside positive, and inhibited by inside negative, ...

A simple method is described which gives high yields of phenyl STAS/sup 35/! benzenethiolsulfinate, labeled at either of the used to assess the specificity of the radio-labeling. The synthesis of phenyl benzenethiol STAS/sup 35/!sulfonate from STAS/sup ...

In pre-big-bang string cosmology one uses a phase of dilaton-driven inflation to stretch an initial (microscopic) spatial patch to the (much larger) size of the big-bang fireball. We show that the dilaton-driven inflationary phase does not naturally iron out the initial classical tensor inhomogeneities unless the initial value of the string coupling is smaller than g{sub ...

Serotonin 5-HT_1B receptors couple to G-proteins of the Gi/o family. However, their activation of specific G-protein subtypes is poorly characterised. Using an innovative antibody capture/guanosine-5?-0-(3-[<sup>35S]thio)-triphosphate ...

? Ligands modulate opioid actions in vivo, with agonists diminishing morphine analgesia and antagonists enhancing the response. Using human BE(2)-C neuroblastoma cells that natively express opioid receptors and human embryonic kidney (HEK) cells transfected with a cloned ? opioid receptor, we now demonstrate a similar modulation of opioid function, as assessed by guanosine ...

The ..gamma..-ray decays of high-spin states in /sup 35/ /sup 366/ /sup 37/Cl and /sup 37/Ar were studied via heavy-ion-induced reactions involving /sup 14/N and /sup 18/O bombardment of targets of /sup 24/ /sup 26/Mg and /sup 27/Al. Decay schemes and spin-parity assignments were deduced from ..gamma gamma..-coincidence measurements, ..gamma..-ray angular ...

Methods are discussed for determining the electron (+ or -) pclarization in nuclear beta decay. The beta - gamma correlations in decay of oriented nuclei are reviewed. Decay of free polarized or unpolarized neutrons is studied. The beta decay coupling constants calculated from these polarization considerations are compared with the constants calculated from ...

The mass excess of sup 35 Si has been determined as -14.427 +- 0.060 MeV from a measurement employing the sup 36 S( sup 13 C, sup 14 O) sup 35 Si reaction. No excited states of sup 35 Si were observed. The sup 34 S( sup 13 C, sup 14 O) sup 33 Si reaction ...

Carrier-free S/up 35/ is extracted from irradiated KCl, by absorbing the S/sup 35/ on an alumina column and eluting with ammonium hydroxide. The S/sup 35/ has a radiochemical purity higher than 99%. The apparatus used in the preparation of curie quantities of S/sup ...

The threshold energy of the /sup 35/Cl(p,n) /sup 35/Ar reaction has been measured to be 6942.2 +- 2.2 keV, clearly resolving the ambiguity arising from two previous conflicting values. The results are discussed in the context of the problems posed by a vanishing Cabibbo angle.

The fate of aminazine, promazine, and chlormepazine in the body was studied, employing a tracer method. The results of studying the dynamics of distribution of the preparations in the organisms of various species of animals with different methods of administration, the findings of the historadioautographic study of the S/sup 35/ aminazine ...

Ligand-directed signaling has been suggested as a basis for the differences in responses evoked by otherwise receptor-selective agonists. The underlying mechanisms are not understood, yet clearer definition of this concept may be helpful in the development of novel, pathway-selective therapeutic agents. We previously showed that ?-opioid receptor activation of JNK by one class of ligand, but not ...

A detailed reaction pathway for the six-electron reduction of SO{sub 3}{sup 2{minus}} to S{sup 2{minus}} by the assimilatory-type sulfite reductase (SiR) from Desulfovibrio vulgaris (Hildenborough) has been deduced from experiments with {sup 35}S-labeled enzyme and the relative reaction rates of nitrogenous substrates. The ligand bridging the prosthetic ...

Previous studies have shown that high affinity binding of the agonist Angiotensin II (Ang II) to adrenal cortex receptors was modulated by guanine nucleotides. In contrast, the antagonist (/sup 1/SAR,/sup 8/Ile) Ang II (SARILE) did not display any sensitivity toward guanine nucleotides. The authors have observed already after solubilization in octyl-glucoside and size-exclusion HPLC that agonist ...

A method for the separation of S/sup 35/ from pile-irradiated KCl in which the separation of carrier-free S/sup 35/ is simplified through the use of an anion-exchange column is described. The separation of S/sup 35/ from PP and K/ sup +/is effected in a single step. ...