It is now a well known fact that in a gauge the­ ory on a multiply-connected space, non-integrable phases of Wilson line integrals will give rise to many interesting dynamical effects. 1 ~ 5 For instance, they lead to 0-vacuum in QED on a circle. They also in­ duce a quantization condition for the Chern-Simons term in non-trivial two-dimensional. Last but not least, they cause dynamical gauge s...

A central goal of qualitative physics is to provide a framework for organizing and using quantitative knowledge. One important use of quantitative knowledge is numerical simulation. While current numerical simulators are powerful, they are often hard to construct, do not reveal the assumptions underlying their construction, and do not produce explanations of the behaviors they predict. This pap...

This paper deals with the dynamic modeling, analysis, 4 and statistical signal processing of the ion channel switch biosen5 sor. The electrical dynamics are described by a second-order linear 6 system. The chemical kinetics of the biosensor response to analyte 7 concentration in the reaction-rate-limited regime are modeled by 8 a two-timescale nonlinear system of differential equations. Also, 9...

Simulating wave propagation in 3D configurations is becoming a very active area of research. Themain advantage of the BEM is that only the domain boundaries are discretized. As a result, thismethod is well suited to dealing with unbounded domains. However, the standard BEM leadsto fully-populated matrices, which results in high computational costs in CPU time and mem-ory require...

This paper describes algorithms for predictive database management used in The UC Berkeley Building Walkthrough System The algorithms fore cast a range of possible observer viewpoints during upcoming frames and use precomputed cell visibil ity information to determine a set of objects likely to be visible to the observer in the near future For each of these objects detail elision techniques de ...

The lifetime differences of bottom hadrons are known to be properly explained within the framework of heavy quark effective field the-ory(HQEFT) of QCD via the inverse expansion of the dressed heavy quark mass. In general, the spectrum around the endpoint region is not well behaved due to the invalidity of 1/mQ expansion near the endpoint. The curve fitting method is adopted to treat the endpoi...

Watanabe, Masataka, Tohru Kodama, and Kazuo Hikosaka. the animal needs to maintain a representation of the position Increase of extracellular dopamine in primate prefrontal cortex of the next key press in working memory during almost all during a working memory task. J. Neurophysiol. 78: 2795–2798, periods of task performance except for the time of the re1997. The dopamine innervation of the pr...

This paper introduces a two-port BiCMOS static mem-ory cell that combines ECL level word-line voltage swings andemitter-follower bit line coupling with a static CMOS latchto achieve access times comparable to those of high-speedbipolar SRAM's, while preserving the high density and lowpower of CMOS memory arrays. The memory can be ac-cessed for read and write independentl...

An in ter est ing di a logue about the is sues raised by Gray and Salzman sur faced in the first round of re views, and it oc curred to us that this di a logue could be of value to the read ers of Hu man–Com puter In ter ac tion. We in vited a num ber of peo ple in the field to sub mit com men tar ies on the ar ti cle. These were re viewed and re vised, with all com men ta tors see ing each oth...

In this simple model for a one-dimensional array of excitable cells, each site x E Z is in one of I), states: 0 (rested state) , 1 (excited state), 2, . .. ,1), 1 (refract ory states) . The states update in discrete t ime according to a synchronous rule: changes 1 ~ 2, . .. , I), 1 ~ 0 happen auto matically, while t he 0 ~ 1 change is induced by at least a threshold numb er of I s in t he local...