Learn More
The recently completed European trial of interferon beta-had a greater reduction of cerebral volume in the placebo group (mean reduction at month 36: placebo 5.1%, IFNβ-1b (IFNβ-1b) in patients with secondary progressive 1b 1.8%, P < 0.05) whereas those with Gd-enhancing multiple sclerosis (SP multiple sclerosis) has given an lesions showed a trend to(More)
A new approach to learning in a multilayer optical neural network based on holographically interconnected nonlinear devices is presented. The proposed network can learn the interconnections that form a distributed representation of a desired pattern transformation operation. The interconnections are formed in an adaptive and self-aligning fashioias volume(More)
INTRODUCTION Cerebral atrophy is a compound measure of the neurodegenerative component of multiple sclerosis (MS) and a conceivable outcome measure for clinical trials monitoring the effect of neuroprotective agents. In this study, we evaluate the rate of cerebral atrophy in a 6-month period, investigate the predictive and explanatory value of other(More)
The effect of angular deformities of the tibial shaft on the area, location, and shape of the ankle joint contact during the normal extremes in the gait cycle was studied with the use of a cadaveric model. Six lower limbs were first examined radiographically and found to be free of pathology. These specimens were then stripped of soft tissues proximal to(More)
We describe and demonstrate an interferometric technique for measuring the first-order cross correlation of ultrafast optical pulses. This technique may permit single-shot pulse detection and is applicable to receivers for time-domain optical communications. Ultrashort optical pulses are characterized by measurement of correlation functions of the field. A(More)
Software targeting general purpose processing (GPP) elements has been successfully reused for software defined radio (SDR) platforms in support of low-bandwidth waveforms. The Joint Tactical Radio System (JTRS) Software Communications Architecture (SCA) promotes reuse of GPP-based software by providing a consistent framework for developing reusable waveform(More)
Since the 1990s, national green building certification indices have emerged around the globe as promising measurement tools for environmental-friendly housing. Since 2008, tools for countries in the Northern " colder " hemisphere have been adapted to tropical countries. In contrast, the Tropically Adapted Energy Performance Certificate (TEPC), established(More)
Deriving unambiguously the orbital parameters and masses of extrasolar planets requires at least 2-dimensional information on either the positions or motions of the planet directly (currently out of reach) or, indirectly, of the host star. The latter can be done with high-precision astrometry at the 10 microarcsec level. To achieve this goal, a consortium(More)
Simple patterns consisting of three spots (V and Gamma) have been recognized by dividing, shifting, and recombining beams onto bistable ZnS interference filters. This experiment demonstrates AND-gate operation, cascading, and a moderate amount of parallelism, but a laser power of several watts was required and the response times were several milliseconds.(More)