Adult rats that sustained unilateral motor cortical lesions at birth demonstrated deficits in traversing an elevated narrow beam. These deficits, manifested by hindlimb slips off the edge of the beam, were not spared in animals that received fetal cortical transplants into the lesion cavity immediately after lesion placement.

Automated monitoring of circadian rhythms is an efficient way of gaining insight into oscillation parameters like period and phase for the underlying pacemaker of the circadian clock. Measurement of the circadian rhythm of phototaxis (swimming towards light) exhibited by the green alga Chlamydomonas reinhardtii has been automated by directing a narrow and dim light beam through a culture at reg...

Generalized word posterior probability (GWPP), a confidence measure for verifying recognized words, needs to equalize and weight acoustic and language model likelihood contributions to minimize verification errors. In this study, we investigate the word verification error surface and use it to optimize these weights and the corresponding verification threshold in a development set. We test thre...

Helical tomotherapy is a dedicated intensity modulated radiation therapy (IMRT) system with on-board imaging capability (MVCT) and therefore differs from conventional treatment units. Different design goals resulted in some distinctive radiation field characteristics. The most significant differences in the design are the lack of flattening filter, increased shielding of the collimators, treatm...

The analysis of cantilever beams of small dimensions taking into the effect of fringing fields is studied and the parameters are estimated. Extracting the mechanical properties of MEMS devices has always been a challenge in terms of test time and test cost due to difficulties associated with accurate characterization of thin films. A technique for diagnosing the mechanical parameters of a canti...

Two 60 Narrow-Beam Trisector Cell (NBTC) frequency reuse plans, 1x(3+1) and 2x(3+1), that employ Channel Alternation and Rotation (CAR) scheme are presented. In CAR, each cell type is allocated one extra channel set that allows network designer to rotate and alternate channels according to nearest front lobe interference avoidant strategy to enhance co-channel interference ratio (C/I) and allow...

We have developed a simplified version of the side-pumped pulsed dye laser which has a spectral halfwidth of 1.25 GHz and a peak power of 10 kW at 600 nm. The basic laser consists of only four components (output mirror, dye cell, diffraction grating, and tuning mirror) and is exceptionally easy to align. Since the beam expander has been eliminated, the laser cavity can be made quite compact. Un...

We propose a design of a dielectric (silicon nitride) optical leaky wave antenna (OLWA) with periodic semiconductor (silicon) corrugations, capable of producing narrow beam radiation. The optical antenna radiates a narrow beam because a leaky wave (LW) with low attenuation constant is excited at one end of the corrugated dielectric waveguide. We show that pointing angle, beam-width, and operati...

Early cellular architectures consisted of base stations with omnidirectional antennas. Although directional antennas are widely used in current cellular /PCS (Personal Communication System) the system architecture is often still based upon an omnicell structure, and potential advantages of sectorization are not fully exploited. This paper analyzes and compares two different approaches to sector...