In this paper we consider a classical Gough platform with extensible legs whose platform is submitted to a given load. This load induces forces in the linear actuators of the legs, these forces being dependent upon the posture of the platform, and we want to determine the extremal values of the articular forces when the platform is translating in a given 3D workspace (the orientation of the pla...

Intelligent tutoring systems research aims to produce systems that meet or exceed the effectiveness of one on one expert human tutoring. Theory and empirical study suggest that affective states of the learner must be addressed to achieve this goal. While many affective measures can be utilized, posture offers the advantages of non intrusiveness and ease of interpretation. This paper presents an...

This paper proposes a novel method of estimating 3-D hand posture from images observed in complex backgrounds. Conventional methods often cause mistakes by mis-matches of local image features. Our method considers possibility of the mis-match between each posture model appearance and the other model appearances in a Baysian stochastic estimation form by introducing a novel likelihood concept “M...

Subjective rating is one of the alternatives to quantify hand force exertion. The rating of the Borg CR-10 scale has been used to quantify the perception of physical exertion. An experiment was conducted to test the grip force of male subjects at subjective ratings on the CR-10 scale under hand-posture conditions. It was found that the subjects applied a higher grip force than they perceived at...

The paper presents a cognitive architecture for posture learning of an anthropomorphic robotic hand. Our approach is aimed to allow the robotic system to perform complex perceptual operations, to interact with an human user and to integrate the perceptions by a cognitive representation of the scene and the observed actions. The anthropomorphic robotic hand imitates the gestures acquired by the ...

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In 1997, faculty from the health science schools, as well as from the College of Arts and Sciences, expressed an interest in promoting the interaction between faculty scientists and students at Creighton University at both the undergraduate and graduate level. A series of discussions resulted in the first St. Albert’s Day celebration, which was held on November 24, 1997. Since 1997, the St. Alb...

A novel hopanoid, 30-(5'-adenosyl)hopane, was isolated from the purple non-sulphur bacterium Rhodopseudomonas acidophila and identified. The significance of this triterpenoid in terms of bacteriohopanepolyol biosynthesis, membrane reinforcement and possible interactions with nucleic acids is discussed.

BACKGROUND Data from the Compulsory Scrapie Flocks Scheme (CSFS), part of the compulsory eradication measures for the control of scrapie in the EU, have been used to estimate the within-holding prevalence of classical scrapie in Great Britain (GB). Specifically data from one of the testing routes within the CSFS have been used; the initial cull (IC), whereby two options can be applied: the whol...