15,538 research outputs found
Human-Human Collaboration in Virtual Teams
Extended and networked enterprises distribute the design of products, planning of the production process, and manufacturing regionally if not globally. Employees are therefore confronted with collaborative work over remote sites. A cost effective collaboration depends highly on the organization maintaining a common understanding for this kind of work and a suitable support with information and communication technology. The usual face to face work is going to be replaced at least partly if not totally by computer mediated collaboration. Creating and maintaining virtual teams is a challenge to work conditions as well as technology. New developments on cost-effective connections are providing not only vision and auditory perception but also haptic perception. Research results for improving remote collaboration are presented. Individual, social and cultural aspects are considered as new requirements on the employees of networked and extended enterprises.working teams; networks; production process; collaborative work; virtual teams; ICT
What can we learn from three-pion interferometry ?
We address the question which additional information on the source shape and
dynamics can be extracted from three-particle Bose-Einstein correlations. For
chaotic sources the true three-particle correlation term is shown to be
sensitive to the momentum dependence of the saddle point of the source and to
its asymmetries around that point. For partially coherent sources the
three-pion correlator allows to measure the degree of coherence without
contamination from resonance decays. We derive the most general Gaussian
parametrization of the two- and three-particle correlator for this case and
discuss the space-time interpretation of the corresponding parameters.Comment: 16 pages, to be published in Phys. Rev.
Compositions and Averages of Two Resolvents: Relative Geometry of Fixed Points Sets and a Partial Answer to a Question by C. Byrne
We show that the set of fixed points of the average of two resolvents can be
found from the set of fixed points for compositions of two resolvents
associated with scaled monotone operators. Recently, the proximal average has
attracted considerable attention in convex analysis. Our results imply that the
minimizers of proximal-average functions can be found from the set of fixed
points for compositions of two proximal mappings associated with scaled convex
functions. When both convex functions in the proximal average are indicator
functions of convex sets, least squares solutions can be completely recovered
from the limiting cycles given by compositions of two projection mappings. This
provides a partial answer to a question posed by C. Byrne. A novelty of our
approach is to use the notion of resolvent average and proximal average
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