1,721,152 research outputs found
Time reversal, Loop-antiloop symmetry and Bessel equation
No full textThe Bessel equation is shown to be equivalent, under suitable transformations, to a system of two damped/amplified parametric oscillator equations, which have been used in the study of inflationary models of the Universe, thermal field theories and Chern-Simons gauge theories. The breakdown of loop-antiloop symmetry due to group contraction manifests itself as breaking of time-reversal symmetry. The relation between some infinite dimensional loop-algebras, such as the Virasoro-like algebra, and the Euclidean algebras e(2) and e(3) is also analyze
DISSIPATION AND MEMORY DOMAINS IN THE QUANTUM MODEL OF BRAIN, IN ``QUANTUM BRAIN DYNAMICS"
No full textInequivalent representations in Quantum Field Theory and Neutrino Mass and Oscillations
No full text(World Scientific, 1992), Ed. S.De Lillo, P.Sodano, F.C.Khanna, G.W.Semenoff
Workshop on Multimodal Interaction Through Haptic Feedback - MITH 2008
No full textThe workshop is meant to promote further investigation on the theoretical and practical valence of haptic-enhanced multimodal interaction, by stimulating discussion among researchers, possibly operating in different scientific fields. The final goal of this one-day meeting will be to encourage research cooperation among participants on multidisciplinary projects built upon individual past experiences with multimodal haptic interfaces. To that aim, workshop participants will be invited to take part in electronic forums, to be held prior and after the workshop, meant to discuss possible project joint proposals. An example of such proposals might be in response to the open call for Future and Emerging Technologies (FET), which is part of the Information Society Technologies (IST) area, under the Seventh Framework Programme (FP7)
Quantization about a Yang-Mills pseudoparticle and the conformal group contraction
No full textQuantum fluctuations about a Yang-Mills pseudoparticle solution are studied from the point of view of spontaneous breakdown of conformal symmetry. It is argued that the linearization procedure by which one passes from the nonlinear Yang-Mills equation to linear equations for the small-oscillation modes leads to a group contraction of the conformal group. The number of degrees of freedom of the n-pseudoparticle solution naturally turns out to be 8 n-3, n being the Pontryagin index. © 1979 Società Italiana di Fisica
Editorial - Introduction to the special issue on multimodal interaction through haptic feedback
No full textMultimodal interfacesarecharacterizedbythe(possi-
bly simultaneous)useofmultiplehumansensorymod-
alities andcansupportcombinedinput/outputmodes.
Modern multimodalinterfacesaimatemulatingthe
naturalmulti-sensorialformsofhuman–humandialogue,
relyingontheintegrationofadvancedinteractionmodes,
rangingfrompen-basedinput,tohandgestures,toeye
gaze, tohead/bodymovements,tohapticinput/output.
Multimodal interactionenhancedbyhapticfeedbackis
increasinglybeingexperiencedinsuchdomainsas
industry,medicine,andbiotechnology,wherenewpoten-
tialities canbeachieved.Thankstotheuseofhaptic
devices. Multimodalhapticinterfaceshavealsobeen
conceivedtoaddressmajorsocietalneeds,e.g.,byvisually
impairedpeopleorwheelchairusers.Therefore,agreat
deal ofattentionisbeingdevotedtoresearchesaimingto
investigatethepotentialofmultimodaldialoguesallowed
by advancedinteractiondevices,andinparticularto
evaluatethepossibleenhancementachievedbytradi-
tional visualinteractionsystemsthroughtheuseofsuch
additional communicationmodalities.Followingthis
trend, thefocusofthisspecialissueisonhaptic-enhanced
multimodal interactionandonresearchchallenges,and
innovativeideasandapproachesthathavebeenexperi-
mentedandvalidatedinthisspecificresearchfield
Relation between projective geometry and group contraction in spontaneously broken symmetry theories
No full text
"Riutilizzo delle acque attraverso l’evoluzione dell’impianto di trattamento acque reflue di Viareggio"
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