06 05 49 3 v 1 19 M ay 2 00 6 A New Mechanism for Gravitational Wave Emission in Core-Collapse Supernovae
Christian D. Ott, Adam Burrows, Luc Dessart, Eli Livne Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Potsdam, Germany; cott@aei.mpg.de Department of Astronomy and Steward Observatory, The University of Arizona, Tucson, AZ 85721; burrows@zenith.as.arizona.edu,luc@as.arizona.edu and Racah Institute of Physics, The Hebrew University, Jerusalem, Israel; eli@frodo.fiz.huji.ac.il
PROCEEDINGS OF THE Britbsh Pharmacoloqical The antihypertensive properties and effects on urate and electrolyte excretion of tienilic acid, bendrofluazide and spironolactone Influence of coronary artery occlusion on tthe myocardial distribution of digoxin
Speculation continues as to whether or not digoxin enhances the risk of ventricular dysrhythmias during acute myocardial infarction (Lown, Klein, Barr, Hagemeyer, Kosowsky & Garrison, 1972). Any heterogeneous distribution of digoxin might increase the arrhythmogenic potential of the ischaemic myocardium. Two aspects of the relationship between ischaemia of the myocardium and myocardial digoxin concentrations were therefore studied in 28 open-chest dogs with anterior wall infarction; firstly myocardial digoxin uptake and secondly, but more importantly, the rate and duration of the 'washout' of the drug from the myocardium. The uptake of 1251 labelled digoxin by the ischaemic myocardium, although directly proportional to regional myocardial blood flow (RMBF), was less severely depressed than was RMBF. As 'washout' times during continuing coronary occlusion were prolonged for up to 12 h, the concentrations of 1251 labelled digoxin in the ischaemic myocardium became steadily higher relative to those in the normal myocardium and reaching up to 208% of the normal. In addition, the more ischaemic the myocardium, the slower was the 'washout'. Thus, in acute myocardial infarction the distribution of digoxin throughout the myocardium is markedly heterogeneous and the effects of continued administration of the drug merit further study.
Resonant Auger decay study of C1s -> pi* core-excited OCS
The present work aims at characterizing short-lived C1s((-1)) pi*((1)) core-excited states of the OCS molecule based on the analysis of the vibrational fine structure and lineshape profiles of the high-resolution resonant Auger decay spectra recorded at the excitation energies along the C1s -> pi* resonance in the binding energy region 15-19eV. Very different behavior in terms of lineshape and resonant enhancement is observed for the (A) over tilde, (B) over tilde and (C) over tilde final states. This is explained by (1) the variation in the C-O bond lengths for the states involved in the electronic relaxation and (2) different contributions in terms of Mulliken population to the molecular orbitals determining the electronic character of the corresponding states. Since the final-state geometries are known from a number of previous experiments and ab initio calculations, the geometry of the C1s((-1)) pi*((1)) intermediate states can be predicted in analogy with e.g. the N-2, CO2 and N2O molecules. (C) 2009 Elsevier B.V. All rights reserved. (Less)