12 research outputs found
A phenomenological theory of nonphotochemical laser induced nucleation
Our analysis of the experimental data related to nonphotochemical laser
induced nucleation in solutions leads to the inevitable conclusion that the
phase transformation is initiated by particles that are metallic in nature.
This conclusion appears paradoxical because the final products are dielectric
crystals. We show that the experimental results are well accounted for by the
theory of electric field induced nucleation of metallic particles that are
elongated in the direction of the field. However, new physical and chemical
insights are required to understand the structure of the metallic precursor
particles and the kinetics of subsequent dielectric crystallization.Comment: 5 pages 4 figure
Bricks, blocks and masonry made from aggregate concrete Appearance and environmental aspects
SIGLEAvailable from British Library Document Supply Centre-DSC:2363.668(460 pt 2) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Increase in adrenomedullin gene expression in the left atrium and ventricle in the two-kidney one-clip renovascular hypertensive rats
The 2-kidney 1-clip rat model was set up by clipping the left renal artery. At 5 weeks after clipping, there was an increase in preproadrenomedullin mRNA levels in both the left atria and the left ventricle. Adrenomedullin (AM) contents, however, increased in the left ventricle but decreased in the left atrium. These changes were not observed at 2 weeks after clipping. There were no changes in AM or preproadrenomedullin mRNA levels in the thoracic aorta and the mesenteric artery, and in plasma AM levels at 2 weeks or 5 weeks after clipping. We concluded that there was an increase in the secretion of AM in the left ventricle and the left atria in the 5 week renovascular hypertensive rat. The lack of change in plasma AM level suggests a paracrine function for the peptide in this setting. © 2003 Elsevier Science Ltd. All rights reserved.link_to_subscribed_fulltex