Exotic semirings such as the “(max;+) semiring” (R[f 1g;max;+), or the “tropical semiring” (N[f+1g;min;+), have been invented and reinvented many times since the late fifties, in relation with various fields: performance evaluation of manufacturing systems and discrete event system theory; graph theory (path algebra) and Markov decision processes, Hamilton-Jacobi theory; asymptotic analysis (lo...

BACKGROUND The characteristics of transmembrane potential (TMP) at the core of functional reentry in the atrium are not well understood. METHODS AND RESULTS In protocol 1 (11 dogs), isolated perfused canine right atria were mapped from the endocardial surface while simultaneous TMPs were recorded from the epicardial surface. Episodes of reentry (n=64) were induced in the presence of 1 to 5 mi...

Introduction Keyboard encoders are a very common application for CPLDs. Typically a processor, ASSP, or ASIC does not have enough pins for keypads or keyboards. I/O expansion is a very common function for CPLDs and allows a processor to decode a very large keyboard with very few I/Os. Even though CPLDs like MAX® and MAX® II may have abundant low-cost I/Os, decoding a keypad or keyboard with one...

The max-sum classifier predicts n-tuple of labels from n-tuple of observable variables by maximizing a sum of quality functions defined over neighbouring pairs of labels and observable variables. Predicting labels as MAP assignments of a Random Markov Field is a particular example of the max-sum classifier. Learning parameters of the max-sum classifier is a challenging problem because even comp...

We present a study of the relation between [OIII] 5007A emission line width (sigma_{[OIII]}) and stellar velocity dispersion (sigma_{*}), utilizing sample 740 type 1 active galactic nuclei (AGNs) with high-quality spectra at redshift z < 1.0. find broad correlation core component (sigma_{[OIII,core]}) sigma_{*} scatter 0.11~dex for low (z 0.1) sample; (0.3 1.0) AGNs, is larger, being 0.16~dex. ...

Elevated circulating cytokines are observed in heatstroke patients, suggesting a role for these substances in the pathophysiological responses of this syndrome. Typically, cytokines are determined at end-stage heatstroke such that changes throughout progression of the syndrome are poorly understood. We hypothesized that the cytokine milieu changes during heatstroke progression, correlating with...

M aria Teresa Giardi Institute of Biochemistry and Ecophysiology of Plants, C N R Area della ricerca di Roma, Via Salaria km 29.3, 00016 M onterotondo Scalo, Italy Z. Naturforsch. 48c, 241 2 4 5 (1993); received November 9, 1992 Photosystem II Core, Phosphorylation, Heterogeneity, Phosphatase, Herbicide-Binding Domain In recent papers the heterogeneous nature of photosystem (PS) II core phospho...