G. G. Grigoryan, ∗ G. V. Nikoghosyan, T. Halfmann, Y. T. Pashayan-Leroy, C. Leroy, and S. Guérin † Institute for Physical Research, 0203, Ashtarak-2, Armenia Fachbereich Physik, Universität Kaiserslautern, Erwin-Schrödinger-Strasse, D-67663 Kaiserslautern, Germany Institute of Applied Physics, Technical University of Darmstadt, 64289 Darmstadt, Germany Institut Carnot de Bourgogne, UMR 5209 CNR...

We present an exact three-dimensional wave solution to the shearing sheet equations of motion. The existence of this solution argues against transient amplification as a route to turbulence in unmagnetized disks. Moreover, because the solution covers an extensive dynamical range in wavenumber space, it is an excellent test of the dissipative properties of numerical codes. Subject headings: accr...

PIROGRESS in the surgical management of congenital and acquired cardiovascular diseases has stimulated many branches of medicine. Roentgenology of the cardiov-as(ular system is one of the diagnostic fields that has profited by these advances. One of the interesting and curious findings in roentgenogramis of the thorax of patients with mitral heart disease has been the presence of fine, short, s...

The intracellular pathogen Listeria monocytogenes is a useful model for general actin-based cell motility, because it recruits host actin and associated proteins for movement. Recent data have shown that these associated proteins include the Ena/VASP family of proteins and the actin-related proteins Arp2 and Arp3.

DEVELOPMENT AND DESIGN OF A NEAR-FIELD HIGH-ENERGY GAMMA CAMERA FOR USE WITH NEUTRON STIMULATED EMISSION COMPUTED TOMOGRAPHY by Amy Congdon Sharma Department of Biomedical Engineering Duke University Date: November 14, 2007 Approved: ___________________________ Gregg E. Trahey, Ph.D., Co-Supervisor ___________________________ Georgia D. Tourassi, Ph.D., Co-Supervisor ___________________________...

The purpose of this study was to determine whether the improved insulin action with short-term exercise training in middle-aged individuals is associated with enhanced phosphatidylinositol (PI) 3-kinase activity in skeletal muscle. Nine men of ages 50-70 yr were studied before and after 7 consecutive days of supervised exercise (60 min/day, 70% peak O2 consumption). Insulin sensitivity was meas...