Now showing items 71-80 of 134
Magnetic-field modulation of a two-electrode direct-current plasma
(Elsevier, 1990)
The magnetic field produced by a pair of electromagnets is used to alter the shape and location of the current channel in a two-electrode direct-current plasma (DCP) designed for solution aerosol analysis. The magnetic ...
Phase II trial of methylglyoxal bis-guanylhydrazone (MGBG) in refractory small cell lung cancer
(Kluwer Academic Publishers; Springer Science+Business Media, 1990-03)
Methylglyoxal bis-guanylhydrazone (MGBG), a potent inhibitor of polyamine synthesis, has demonstrated single agent activity against a number of tumor types including malignant lymphomas and head and neck, esophageal and ...
Esterification reactions of lipase in reverse micelles
(Wiley Subscription Services, Inc., A Wiley Company, 1990-04-05)
The activities of lipase from Candida cylindracea and Rhizopus delemar have been investigated in water/AOT/iso-octane reverse micellar media through the use of two esterification reactions: fatty acid-alcohol esterification ...
Screening for steroid sulfatase (STS) gene deletions by multiplex DNA amplification
(Springer-Verlag, 1990-05)
Deletions are the most common molecular defect in steroid sulfatase (STS) deficiency. We describe the application of multiplex DNA amplification, by polymerase chain reaction, for deletion screening in patients with STS ...
DNA strand breaks in liver for four aliphatic epoxides in mice
(Elsevier, 1990-11)
Four aliphatic epoxides, 1-naphthyl glycidyl ether (NGE), 1-naphthylpropylene oxide (NPO), 4-nitrophenyl glycidyl ether (NPGE), 3,3,3-trichloropropylene oxide (TCPO) and two of their precursors, 1-allylnaphthalene (AN) and ...
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. ...
Effects of a selective mu opioid receptor agonist and naloxone on the intake of sodium chloride solutions
(Springer-Verlag, 1990-03)
Endogenous opioid peptides are thought to play a role in mediating the palatability or rewarding aspects of sweet tastes. There is also evidence, however, which suggests that opioids may influence the preference for the ...
On the asymmetry of biological frequency distributions
(Wiley Subscription Services, Inc., A Wiley Company, 1990)
The long-standing problem of determining whether the skewness in a sample frequency distribution is the manifestation of the intermixing of disparate groups characterizable by a normal mixture distribution or the manifestation ...
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 ...