Wireless communication is the major form of connection nowadays. In most cases it exploits the benefits of the spread spectrum techniques to overcome channel introduced corruptions like Doppler residual frequency, noise, interference and jamming. These techniques also enhance the security and quality of the link. Using long spreading pseudo-noise codes provides further security for the link tho...

We examined the time course of threshold reduction in the Gabor lateral masking paradigm (Polat and Sagi 1993). Contrast detection thresholds were measured (2AFC) for a brieey presented (36 msec) foveal Gabor signal (GS), preceded by a presentation (90 msec) of two high-contrast GS anked masks, with Stimulus Onset Asynchrony (SOA) varying from 0 to 16,290 msec. Using target-to-mask separations ...

Long-range interactions exhibit surprising features which have been less explored so far. Here, studying a one-dimensional fermionic chain with long-range hopping and pairing, we discuss some general associated to the presence of entanglement. In particular, after determining algebraic decays correlation functions, prove that quantum mutual information exists if exponent decay is not larger tha...

wireless communication is the major form of connection nowadays. in most cases it exploits the benefits of the spread spectrum techniques to overcome channel introduced corruptions like doppler residual frequency, noise, interference and jamming. these techniques also enhance the security and quality of the link. using long spreading pseudo-noise codes provides further security for the link tho...

Inspired by general relativity, we suggest an approach for long-range potential scattering. In scattering theory, there is a theory short-range scattering, but no This because the boundary conditions all potentials are same, different different. this paper, introducing tortoise coordinates, convert to allows us deal with as An explicit expression of wave function presented, in which represented...

PURPOSE The aim of this study was to assess the feasibility and safety of laparoscopic resection following the insertion of self-expanding metallic stents (SEMS) for the treatment of obstructing left-sided colon cancer. METHODS Between October 2006 and December 2012, laparoscopic resection following SEMS insertion was performed in 54 patients with obstructing left-sided colon cancer. RESULT...