Now showing items 61-70 of 814
Subsolidus Phase Relationships in Part of the System Si,Al,Y/N,O: The System Si 3 N 4 AIN YN Al 2 O 3 Y 2 O 3
(Blackwell Publishing Ltd, 1991-11)
Pentacoordinate Silicon Complexes as Precursors to Silicate Glasses and Ceramics
(Blackwell Publishing Ltd, 1994-04)
An intramolecular, Schmidt reaction of an alkyl azide with a carbocation. The generation and rearrangement of a conformationally restricted secondary aminodiazonium ion.
(Elsevier, 1992-09-08)
Treatment of azidoalkene 2 with triflic acid produced the bridged bicyclic enamine 3 by an intramolecular Schmidt reaction. Rearrangement of the intermediate aminodiazonium ion 5 is completely regioselective.
High-resolution analysis of c-fos chromatin accessibility using a novel DNase I-PCR assay
(Elsevier, 1992-04-06)
In our previous study, c-fos chromatin accessibility was assayed using DNase I digestion and Southern blot analysis. This low-resolution mapping of c-fos chromatin accessibility demonstrated that serum stimulation of the ...
Continuous monitoring of gas-phase species at trace levels with electrochemical detectors : Part 2. Detection of chlorine and hydrogen chloride
(Elsevier, 1991-08-01)
A detection system for the continuous and simultaneous measurement of gas-phase chlorine and hydrogen chloride in the low parts per billion (109) by volume (ppbv) range is described. Both gases are trapped through the walls ...
Interactions of intracellular mediators of amylase secretion in permeabilized pancreatic acini
(Elsevier, 1991-01-23)
Mouse pancreatic acini were permeabilized with streptolysin O to investigate amylase secretion stimulated by various intracellular mediators and the kinetics of secretion as a function of temperature. Amylase secretion was ...
Basic longitudinal texture and fracturing process in thermoset polymers
(Kluwer Academic Publishers; Chapman & Hall ; Springer Science+Business Media, 1992-02)
The “basic longitudinal texture”, which is present everywhere on the fracture surfaces of glassy thermosets and is the finest texture observed on such surfaces, consists of low ridges and shallow grooves that are aligned ...
Studies on morpholinosphingolipids: Potent inhibitors of glucosylceramide synthase
(Elsevier, 1994-04-25)
Synthetic 1-morpholino-1-deoxyceramides were designed to inhibit glucosylceramide synthase. The most potent inhibitor 2a possesses the unnatural R,R-configuration of D-threo-sphingosine.
Immobilization of proteins on gold coated porous membranes via an activated self-assembled monolayer of thioctic acid
(Springer-Verlag, 1995-09)
A new methodology for efficient protein (e.g., antibodies, enzymes, etc.) immobilization on microporous nylon membranes for use in a variety of bioanalytical systems is introduced. The method utilizes an activated ...
Surface structure and composition of high-surface-area molybdenum nitrides
(Elsevier, 1994-05-01)
The determination of surface structure is critical in elucidating structure-function relationships for catalytic materials. However, such materials often consist of active regions of very limited spatial extent, rendering ...