The MOS 36-item short-form health survey is a generic, patient-based health assessment tool. It has been used to assess functional outcome for many medical conditions, both acute and chronic. The use of this survey in evaluating the effects of treatment of any specific disease or injury allows comparison of treatments across a broad spectrum of disease categories. The purpose of this study was to see if this assessment tool could 1) be used to identify those patients requiring anterior cruciate ligament reconstruction, 2) detect changes in the patients with treatment over time, and 3) correlate with the commonly used knee assessment scales. The short-form health survey could not identify those patients requiring anterior cruciate ligament reconstructive surgery. However, it did show important and significant changes with treatment (surgical and nonsurgical) over time. There was a significant correlation between the short-form health survey and the Lysholm and International Knee Documentation Committee scores during this study. The addition of the MOS 36-item short-form health survey to our traditional knee ligament evaluation tools is encouraged. Its use will permit the orthopaedic community to demonstrate the value of our treatment of anterior cruciate ligament injuries to health care planners and generalist physicians.
It is shown numerically and analytically that when an optical pulse approaches a moving temporal boundary across which the refractive index changes, it undergoes a temporal equivalent of reflection and refraction of optical beams at a spatial boundary. The main difference is that the role of angles is played by changes in the frequency. The frequency dependence of the dispersion of the material in which the pulse is propagating plays a fundamental role in determining the frequency shifts experienced by the reflected and refracted pulses. Our analytic expressions for these frequency shifts allow us to find the condition under which an analog of total internal reflection may occur at the temporal boundary.
OMEGA, a 60-beam, 351 nm, Nd:glass laser with an on-target energy capability of more than 40 kJ, is a flexible facility that can be used for both direct- and indirect-drive targets and is designed to ultimately achieve irradiation uniformity of 1% on direct-drive capsules with shaped laser pulses (dynamic range ≳400:1). The OMEGA program for the next five years includes plasma physics experiments to investigate laser–matter interaction physics at temperatures, densities, and scale lengths approaching those of direct-drive capsules designed for the 1.8 MJ National Ignition Facility (NIF); experiments to characterize and mitigate the deleterious effects of hydrodynamic instabilities; and implosion experiments with capsules that are hydrodynamically equivalent to high-gain, direct-drive capsules. Details are presented of the OMEGA direct-drive experimental program and initial data from direct-drive implosion experiments that have achieved the highest thermonuclear yield (1014 DT neutrons) and yield efficiency (1% of scientific breakeven) ever attained in laser-fusion experiments.
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