0000000001268407
AUTHOR
F. Yang
Development of artificial vision system to study jaw motion in children
National audience
Measurement of thett¯production cross section inpp¯collisions ats=1.96 TeVusing soft electronb-tagging
The authors present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Using 318 pb{sup -1} of data collected with the CDF II detector, they measure the t{bar t} production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9{sub -1.0}{sup +1.0}(stat.){sub -1.0}{sup +1.1}(syst.) pb. The cross section value assumes a top quark mass of m{sub t} is presented in the paper. This result is cons…
Use of artificial vision to study masticatory kinematics: a preliminary study
National audience; The relationship between foods structural properties and masticatory behaviour has been extensively characterised in literature. Electromyographic and jaw movements recordings are the most common methods used to study mastication. These methods are quite expensive, required preparation of the subjects and constraint the study within a laboratory set-up. Moreover, they are barely applicable for characterising specific population such as children or cognitively impaired subjects because of the non compliance to the protocol. Because of these difficulties, chewing behaviour in these populations has mostly been characterised using video (1,2,3). Video observations were found …