17,718 research outputs found
Mechanisms of vascular smooth muscle contraction and the basis for pharmacologic treatment of smooth muscle disorders
The smooth muscle cell directly drives the contraction of the vascular wall and hence regulates the size of the blood vessel lumen. We review here the current understanding of the molecular mechanisms by which agonists, therapeutics, and diseases regulate contractility of the vascular smooth muscle cell and we place this within the context of whole body function. We also discuss the implications for personalized medicine and highlight specific potential target molecules that may provide opportunities for the future development of new therapeutics to regulate vascular function.Accepted manuscrip
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Pyrolysis-GC×GC-TOFMS to characterize carbonaceous chondrites
Using pyrolysis-GCxGC-TOFMS to analyze organic carbon in carbonaceous chondrites gives a massive increase in both sensitivity and structural information from samples when compared to traditional Py-GC-MS
Occurrence of and attempts to eradicate grape phylloxera (Homoptera: Phylloxeridae) in British Columbia
oai:jesbc.journals.sfu.ca:article/1817The chronological occurrence, survey methods, and eradication programs of the grape phylloxera, Phyiloxera vitifoliae (Fitch), in British Columbia are described. The insect was first found in the Okanagan Valley in 1961. Though an eradication program at that time was apparently successful, the insect reappeared in 1971. It is now well established in the area. The pest was accidentally introduced on imported vines
Solitary waves in clouds of Bose-Einstein condensed atoms
We consider the conditions under which solitary waves can exist in elongated
clouds of Bose-Einstein condensed atoms. General expressions are derived for
the velocity, characteristic size, and spatial profile of solitary waves, and
the low- and high-density limits are examined.Comment: 6 pages, revtex, 1 ps figur
Particle entrapment as a feedback effect
We consider a suspension of polarizable particles under the action of
traveling wave dielectrophoresis (DEP) and focus on particle induced effects.
In a situation where the particles are driven by the DEP force, but no external
forces are exerted on the fluid, the joint motion of the particles can induce a
steady fluid flow, which leads to particle entrapment. This feedback effect is
proven to be non-negligible even for small volume concentration of particles.Comment: 4 pages, 4 figures, submitte
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