Now showing items 11-20 of 69
Chemical permeabilization and in situ removal of daidzein from biologically viable soybean (Glycine max) seeds
(Kluwer Academic Publishers; Chapman and Hall ; Springer Science+Business Media, 1998-09)
After 24 h of chemical permeabilization with 20% (v/v) methanol at 25 °C, the amount of daidzein released from soybean seeds is 15 to 20% of the amount (0.0423 ± 0.0045 mg/g seed dry wt) obtained by physical grinding. With ...
Second-generation polymeric precursors for BN and SiNCB ceramic materials
(John Wiley & Sons, Ltd., 1998-10)
Our recent work directed at the design, synthesis, characterization and applications of new types of polyborazylene and polyborosilazane polymers is reviewed with a focus on the use of these polymers as processable precursors ...
Dual role for the zeste-white3/shaggy -encoded kinase in mesoderm and heart development of Drosophila
(John Wiley & Sons, Inc., 1998)
A Drosophila homolog of the serine/threonine kinase GSK-3β, encoded by the zest-white3/shaggy gene ( zw3 ), has been implicated as a maternally provided antagonist of zygotic signaling by the secreted segmentation gene ...
Synthesis of block, graft and star polymers from inorganic macroinitiators
(John Wiley & Sons, Ltd., 1998-10)
Recent advances in the synthesis of block, graft and star polymers containing inorganic macromolecular species are described. Anionic copolymerization techniques were used in the for-mation of diblock copolymers of ...
Comparison of SnBr 4 and di-n-butyl tin diacetate as laser-assisted chemical vapor deposition precursors for SnO 2 -based gas sensors
(John Wiley & Sons, Ltd., 1998-03)
Laser-assisted chemical vapor deposition (LCVD) was utilized to produce SnO 2 films from SnBr 4 plus air, O 2 or N 2 O. SnO 2 films were successfully generated using either 222 or 308 14nm laser pulses but there was ...
Elemental balancing of biomass and medium composition enhances growth capacity in high-density Chlorella vulgaris cultures
(Wiley Subscription Services, Inc., A Wiley Company, 1998-09-05)
The basic requirements for high-density photoautotrophic microalgal cultures in enclosed photobioreactors are a powerful light source and proper distribution of light, efficient gas exchange, and suitable medium composition. ...
Impact of a Simple Inexpensive Quality Assurance Effort on Physician's Choice of Thrombolytic Agents and Door-to-Needle Time: Implication for Costs of Management
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-01)
The objective of this study were to assess the impact of a quality assurance effort on the door-to-needle time and the choice of thrombolytic agent for the management of acute myocardial infarction in the emergency department. ...
Vacancy Generation During Grain Boundary Migration
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-12)
We present a molecular dynamics simulation study of vacancy generation and emission from grain boundaries during curvature-driven grain boundary migration. The U-shaped half-loop bicrystal geometry is employed in order to ...
The synthesis of functional polyphosphazenes and their surfaces
(John Wiley & Sons, Ltd., 1998-10)
The macromolecular substitution approach for the synthesis of polyphosphazenes provides access to many different polymers. However, it precludes the use of reagents that contain two or more functional groups because such ...
Inhibition of aortic wall calcification in bioprosthetic heart valves by ethanol pretreatment: Biochemical and biophysical mechanisms
(John Wiley & Sons, Inc., 1998-10)
The effectiveness of ethanol pretreatment on preventing calcification of glutaraldehyde-fixed porcine aortic bioprosthetic heart valve (BPHV) cusps was previously demonstrated, and the mechanism of action of ethanol was ...