Now showing items 31-40 of 61
Lipoxygenase-generated icosanoids inhibit glucose-induced insulin release from rat islets
(Elsevier, 1990-05)
Lipoxygenase-pathway metabolites of arachidonic acid are produced in pancreatic islets. They are are implicated in insulin release, since nonselective inhibitors of lipoxygenases inhibit glucose-induced insulin release. ...
Charge-coupled device imaging of rapid calcium transients in cultured arterial smooth muscle cells
(Elsevier, 1990)
Transient changes in the concentration of intracellular free calcium are associated with the transduction of primary signals and the subsequent employment of Ca2+ as a second messenger in a multitude of cell types. These ...
The aggregation and dissociation properties of a low molecular weight mannose 6-phosphate receptor from bovine testis
(Elsevier, 1990-11-15)
The aggregation state of low molecular weight mannose 6-phosphate receptor from bovine testis was determined in membrane preparations and in purified soluble preparations. The effect of aggregation on binding of the receptor ...
Preparation and reactivity of [beta]-zinc and copper phosphonates
(Elsevier, 1990)
Several zinc and copper [beta]-metallated alkylphosphonates of type 2 have been prepared by the insertion of zinc to dialkyl [beta]-bromoalkylphosphonates of type 1. This new class of d2 reagents reacts in excellent yields ...
VM-26 in colorectal carcinoma: A Southwest Oncology Group study
(Kluwer Academic Publishers; Springer Science+Business Media, 1990-02)
In this multi-institutional phase II study, VM-26 or Teniposide was administered to forty-two patients with advanced colorectal cancer. Patients were initially treated at 60 mg/M 2 daily for 5 days with dose adjustments ...
High resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures
(Elsevier, 1990-04-01)
A new class of measurements on GaAs quantum well structures based on frequency domain nonlinear laser spectroscopy is described. Room temperature measurements of the excitation relaxation show an interference effect in the ...
Properties and device applications of deep quantum well resonant tunneling structures
(Elsevier, 1990-04-01)
A self-consistent quantum mechanical simulation is used to study the effects of doping, spacer layers, barrier height, barrier width and well doping on the bound state and bound state charge in a deep quantum well resonant ...
Synthesis and reactivity of rhodium(I) and iridium(I) complexes of the dianions of 2,3-pyrazinedicarboxylic and 2,5-pyrazinedicarboxylic acid
(Elsevier, 1990-03-27)
Rhodium and iridium complexes of the title ligands have been prepared containing cyclooctadiene, carbonyl, phosphine and phosphite ancillary ligands. The complexes are mononuclear or dinuclear depending on the method of ...
Epitaxial growth and characterization of GaAs/Al/GaAs heterostructures
(Elsevier, 1990-04-01)
We report on transmission electron microscopy, secondary ion mass spectroscopy, X-ray and Raman scattering studies of GaAs/Al/GaAs heterostructures grown by migration enhanced epitaxy.
Phase II evaluation of mitoxantrone in advanced pancreatic carcinoma: A Southwest Oncology Group study
(Kluwer Academic Publishers; Springer Science+Business Media, 1990-02)
Patient with advanced adenocarcinoma of the pancreas and no prior chemotherapy were treated on a Phase II trial of mitoxantrone. Doses were adjusted for hepatic dysfunction as defined by bilirubin. Twenty-four patients ...