One suggestion for determining the properties of QCD at finite temperatures and densities is to carry out lattice simulations with an imaginary chemical potential whereby no sign problem arises, and to convert the results to real physical observables only afterwards. We test the practical feasibility of such an approach for a particular class of physical observables, spatial correlation lengths...

The evolution of user interfaces shapes the changes in Human-Computer Interaction (HCI). Direct use of hand as an input device is an attractive method for providing natural HCI. The applications of gesture recognition are manifold, ranging from sign language to medical rehabilitation to virtual reality. In this paper we present a brief review of vision based hand gesture recognition. Key-Words:...

Acta Neurologica Taiwanica Vol 18 No 1 March 2009 Mrs. Yu first noticed clumsiness in the right leg when going upstairs at the age of 56. The symptoms are slowly progressive and she visited our clinics one year later. Physical and neurological examinations revealed mild rigidity in muscle tone (slightly more prominent on the right side). Slowing of rapid-alternating-movement and resting tremor ...

The photorefractive response to an applied electric field is measured in a photorefractive quantum well, providing evidence in favor of the nonlinear transport in the device due to the hot electrons. The reduced mobility of the hot electrons limits the drift length, and thereby limits fringe overshoot. Thus the nonlinear transport prevents the slowing down of the grating writing rate for increa...

This paper discusses the construction of a cross-linguistic, bimodal corpus containing three modes of expression: expressions from two sign languages, speech and gestural expressions in two spoken languages and pantomimic expressions by users of two spoken languages who are requested to convey information without speaking. We discuss some problems and tentative solutions for the annotation of u...