Unique among neutron stars, 1E 1207.4−5209 is an X-ray pulsar with a spin period of 424 ms that contains at least two strong absorption features in its energy spectrum. This neutron star is positionally coincident with the supernova remnant PKS 1209−51/52 and has been identified as a member of the growing class of radioquiet compact central objects in supernova remnants. From previous observati...

We have detected quasi-periodic oscillations (QPOs) near 1 kHz from the low mass X-ray binary 4U 0614+091 in observations with XTE. The observations span several months and sample the source over a large range of X-ray luminosity. In every interval QPOs are present above 400 Hz with fractional RMS amplitudes from 3 to 12%. At high count rates, two high frequency QPOs are detected simultaneously...

INTRODUCTION Neuro-degenerative diseases are, and will remain, an enormous public health problem. Interventions that could delay disease onset even modestly will have a major public health impact. The aim of this study is to see which components of the illness are responsive to change when treated with music therapy in contrast to a group of patients receiving standard medical treatment alone. ...

Axonal degeneration and central nervous system (CNS) atrophy are common in patients with multiple sclerosis (MS). Clinical and experimental studies have described many pathophysiologic mechanisms that may be important in the development of MS, including the activity of immune cells, inflammatory mediators, neurotransmitters, and intracellular signaling pathways. Clinical trials have only recent...

A new family of NASA experimental aircraft (X-planes) is being developed to uniquely, yet synergistically tackle a wide class of technologies to advance low-cost, efficient access to space for a range of payload classes. This family includes two non-air-breathing rocket-powered concepts, the X-33 and the X-34 aircraft, and two air-breathing vehicle concepts, the scramjet-powered Hyper-X and the...

NASA Tech Briefs, March 2010 Inflatable tubular structures that have annular cross sections rigidized with foams, and the means of erecting such structures in the field, are undergoing development. Although the development effort has focused on lightweight structural booms to be transported in compact form and deployed in outer space, the principles of design and fabrication are also potentiall...

for the 35th Conference on Radar Meteorology, Pittsburgh, PA, September 2011 Drop shapes versus fall velocities in rain: 2 contrasting examples M. Thurai, V.N. Bringi, W.A. Petersen, L.D. Carey, P.N. Gatlin, and A. Tokay Dept. of Electrical & Computer Eng., Colorado State Univ., Fort Collins, CO NASA/MSFC, NSSTC, Huntsville, AL University of Alabama in Huntsville, NSSTC, Huntsville, AL JCET/Uni...

Multiple sclerosis (MS) is an incurable neurodegenerative disease whose symptoms are only partially relieved by pharmaceutical intervention. Disability due to this disease process can impede activities of daily living and decrease quality of life, both for MS patients and for their care partners and families. A nonrandomized, nonblinded prospective cohort study of 45 patients with MS was undert...

c-means clustering of remotely sensed (RS) data, and multiple linear regression relating spectral response to Knowledge of surface soil properties is used to assess past erosion soil attributes may be used to evaluate variability in and predict erodibility, determine nutrient requirements, and assess surface texture for soil survey applications. This study was designed to surface soil propertie...

We have studied object persistence and availability of 1,000 digital library (DL) objects. Twenty World Wide Web accessible DLs were chosen and from each DL, 50 objects were chosen at random. A script checked the availability of each object three times a week for just over 1 year for a total of 161 data samples. During this time span, we found 31 objects (3% of the total) that appear to no long...