We present a multimodal approach to face veriication which draws on two distinct knowledge sources of biometric information concerning the subject. A B-spline lip tracker provides the control information regarding the state of the lip shape which is used by a conventional eigenface based face veriication system to connrm or reject a claimed personal identity. The performance of the system teste...

A semiclassical Thomas-Fermi method, including a Weizsäcker gradient term, is implemented to describe ground states of two dimensional nanostructures of arbitrary shape. Time dependent density oscillations are addressed in the same spirit using the corresponding semiclassical time-dependent equations. The validity of the approximations is tested, both for ground state and density oscillations, ...

The rational cubic function with three parameters has been extended to rational bi-cubic function to visualize the shape of regular convex surface data. The rational bi-cubic function involves six parameters in each rectangular patch. Data dependent constraints are derived on four of these parameters to visualize the shape of convex surface data while other two are free to refine the shape of s...

Abstract* Introduction: Chronic morphine exposure can cause addiction and affect synaptic plasticity, but the underlying neural mechanisms of this phenomenon remain unknown. Herein we used electrophysiologic approaches in hippocampal CA1 area to examine the effect of chronic morphine administration on short-term plasticity. Methods: Experiments were carried out on hippocampal slices taken f...

We experimentally investigate the effect of shape on finite-size particles long term trajectories and observe that with an anisotropic can be attracted to coherent regions flow a higher rate than spherical particles. present simple model combines effects orientation-dependent drag forces, show aggregation final particle concentration depend both particle's Stokes number aspect ratio.

The life cycle of bacterial cells consists of repeated elongation, septum formation, and division. Before septum formation, a division ring called the Z-ring, which is made of a filamentous tubulin analog, FtsZ, is seen at the mid cell. Together with several other proteins, FtsZ is essential for cell division. Visualization of strains with GFP-labeled FtsZ shows that the Z-ring contracts before...