T he hereditary spastic paraplegias (HSPs) are inherited neurologic disorders in which the primary symptom is insidiously progressive difficulty walking due to lower extremity weakness and spasticity. There have been great strides in our knowledge of this group of disabling disorders; 20 HSP loci and 9 HSP genes have been discovered. Insights into the molecular causes of HSPs are beginning to e...

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Previous studies have demonstrated that the wear-corrosion synergism can be markedly affected by the loading speed. In this study, effects of the loading speed or strain rate on corrosion and corrosive wear of annealed, impact-fractured and slow bending-fractured surface layers of AISI 1045 steel in a 3.5% NaCl solution were investigated using electrochemical, scanning Kelvin probing and electr...

Treatment in Psychiatry 1045 Adverse Consequences of Glucocorticoid Medication: Psychological, Cognitive, and Behavioral Effects Lewis L. Judd, Pamela J. Schettler, E. Sherwood Brown, Owen M. Wolkowitz, Esther M. Sternberg, Bruce G. Bender, Karen Bulloch, John A. Cidlowski, E. Ronald de Kloet, Laurence Fardet, Marian Joëls, Donald Y.M. Leung, Bruce S. McEwen, Benno Roozendaal, Elisabeth F.C. Va...

Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA, UK Department of Astronomy, University of Minnesota, 116 Church Street, SE, Minneapolis, MN 55455 Division of Astronomical Sciences, National Science Foundation, Room 1045, 4201 Wilson Blvd, Arlington, VA 22230 European Southern Observatory, Alonso de Cordoba 3107, Vitacura, Casilla 19001, Santiago 19, Chile Current address: Department...

A diode-pumped Yb>(3+):Ca(4)GdO(BO>(3))(3) (Yb:GdCOB) laser generating 90-fs pulses at a center wavelength of 1045 nm is demonstrated. This is, to our knowledge, the shortest pulse duration obtained from an ytterbium laser with a crystalline host. This laser is mode locked with a high-finesse semiconductor saturable-absorber mirror and emits 40 mW of average power at a repetition rate of 100 MHz.

The objective of the research was to analyse impact ultrasonic vibration assistance on wear resistance and topology enhancement AISI 1045 cylindrical steel samples after a ball burnishing process. Burnishing process parameters such as force, number passes assistance, or not, 40kHz wave. A screening design 3 factors with 2 central points planned. An improvement in when is applied, expected due e...