Now showing items 441-450 of 463
Defect interactions on solid surfaces
(Elsevier, 1993-03-10)
A unified approach to the calculation of the elastic interaction between defects on a surface that describe, for example, steps, islands, and stress domains is presented. This is accomplished by determining the spatial ...
Hydrodesulfurization over model sulfide cluster-derived catalysts
(Elsevier, 1991)
There is growing interest in the use of organometallic clusters as precursors to model heterogeneous catalysts. This interest is partially derived from the expectation that "solid-state metal complex catalysts" will be ...
Acid- and base-treated Fe 3+ -TiO 2 -pillared clays for selective catalytic reduction of NO by NH 3
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-03)
Fe 3+ -ion-exchanged delaminated pillared clays (PILCs) have been found previously to be more active than the vanadia-based catalysts for selective catalytic reduction (SCR) of NO by NH 3 . The effects of acid treatment ...
Pharmacophore elements of the TIPP class of delta opioid receptor antagonists
(Kluwer Academic Publishers; ESCOM Science Publishers B.V. ; Springer Science+Business Media, 1994-10)
A series of tri-and tetrapeptides sharing the amino-terminal dipeptide unit Tyr-Tic, found in the high-affinity delta opioid receptor antagonist Tyr-Tic-Phe-Phe (TIPP), was prepared and evaluated in receptor binding assays ...
Clozapine's functional mesolimbic selectivity is not duplicated by the addition of anticholinergic action to haloperidol: a brain stimulation study in the rat
(Springer-Verlag, 1993-01)
This study examined whether the anticholinergic potency of the clinically superior antipsychotic drug clozapine contributes to clozapine's anatomically-selective functional inhibition of the mesolimbic dopamine (DA) system, ...
Sensitization and tolerance to the discriminative stimulus effects of mu-opioid agonists
(Springer-Verlag, 1994-05)
The discriminative stimulus effects of several μ-opioid agonists were examined under conditions of opioid sensitization or tolerance, i.e., before and after 1-week SC infusions of naloxone or μ-opioid agonists. Rats were ...
Local administration of Δ9-tetrahydrocannabinol attenuates capsaicin-induced thermal nociception in rhesus monkeys: a peripheral cannabinoid action
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-04)
Rationale: Cannabinoids can reduce nociceptive responses by acting on peripheral cannabinoid receptors in rodents. Objectives: The study was conducted to evaluate the hypothesis that local administration of Δ 9 ...
Competitive Inhibition of p -Aminohippurate Transport by Quinapril in Rabbit Renal Basolateral Membrane Vesicles
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1998-06)
The mechanism of quinapril's interaction with the organic anion transporter was characterized by studying its effect on the transport of p -aminohippurate (PAH) in rabbit renal basolateral membrane vesicles (BLMV). ...
Monte Carlo analysis of the backscattering of radiation from a sphere to a plane
(Elsevier, 1990-02)
A Monte Carlo method is described for computing the backscattering of radiation from a sphere situated above an emitting plane. Numerical results are given and compared with analytic bounds for this problem which were ...