Generating and visualizing a soccer knowledge base

This demo abstract describes the SmartWeb Ontology-based Information Extraction System (SOBIE). A key feature of SOBIE is that all information is extracted and stored with respect to the SmartWeb ontology. In this way, other components of the systems, which use the same ontology, can access this information in a straightforward way. We will show how information extracted by SOBIE is visualized within its original context, thus enhancing the browsing experience of the end user

Quantum cosmology with varying speed of light: canonical approach

We investigate $(n+1)$--dimensional cosmology with varying speed of light. After solving corresponding Wheeler-DeWitt equation, we obtain exact solutions in both classical and quantum levels for ($c$--$\Lambda$)--dominated Universe. We then construct the ``canonical'' wave packets which exhibit a good classical and quantum correspondence. We show that arbitrary but appropriate initial conditions lead to the same classical description. We also study the situation from de-Broglie Bohm interpretation of quantum mechanics and show that the corresponding Bohmian trajectories are in good agreement with the classical counterparts.Comment: 14 pages, 7 figures, to appear in Physics Letters

Thoughts on opportunities in high-energy nuclear collisions

This document reflects thoughts on opportunities from high-energy nuclear collisions in the 2020s.Comment: 10 pages, pd

French and Provençal lexicography

(print) 278 pEssays presented to honor Alexander Herman SchultzAlexander Herman Schutz Urban T. Holmes 3 -- Part I : General and Old French Studies -- Lexicography and Stylistics Helmut Hatzfeld 13 -- The Pucelle Is Not for Burning Eleanor Webster Bulatkin 30 -- Les Gloses Françaises dans le Pentateuque de Raschi Raphael Levy 56 -- The Affective and Expressive Values of Verb-Complement Compounds in Romance Frederick Koenig 81 -- Pleine Sa Hanste in the Chanson de Roland Julian Harris 100 -- Carestia Henry and Renée Kahane 118 -- Part II : Old Provençal -- Quelques Observations sur le Texte des Vidas and des Razos dans les Chansonniers Provençaux AB et IK Jean Boutière 125 -- The Name of the Troubadour Dalfin d'Alvernhe Stanley C. Aston 140 -- Three Little Problems of Old Provençal Syntax Kurt Lewent 164 -- Flamenca Gleanings Edward B. Ham 183 -- The Lady from Plazensa Frank M. Chambers 196 -- Th e Vocabulary of the New Testament in Provençal Robert White Linker 210 -- Part III : Renaissance French -- Flux et Reflux du Vocabulaire Français au XVIe Siècle Raymond Lebègue 219 -- Archaism in Ronsard's Theory of a Poetic Vocabulary Isidore Silver 227 -- Montaigne's Later Latin Borrowings William L. Wiley 246 -- The Coins in Rabelais Robert Harden 257 -- Bibliography of Alexander Herman Schutz Kenneth R. Scholberg 27

Accelerating Universes from Short-Range Interactions

We show that short-range interactions between the fundamental particles in the universe can drive a period of accelerated expansion. This description fits the early universe. In the present day universe, if one postulates short-range interactions or a sort of "shielded gravity", the picture may repeat.Comment: 4 pages, 1 figure. Discussion expanded. Some references added. Matches version in print. To appear in Phys. Lett.

Relativistic hydrodynamics with sources for cosmological K-fluids

We consider hydrodynamics with non conserved number of particles and show that it can be modeled with effective fluid Lagrangians which explicitly depend on the velocity potentials. For such theories, the {}``shift symetry'' $\phi\to\phi+$const. leading to the conserved number of fluid particles in conventional hydrodynamics is globaly broken and, as a result, the non conservation of particle number appears as a source term in the continuity equation. The particle number non-conservation is balanced by the entropy change, with both the entropy and the source term expresed in terms of the fluid velocity potential. Equations of hydrodynamics are derived using a modified version of Schutz's variational principle method. Examples of fluids described by such Lagrangians (tachyon condensate, k-essence) in spatially flat isotropic universe are briefly discussed.Comment: 9 pages, no figures. Title changed. Minor corrections. To appear in Int. Jour. Mod. Phys.

Thoughts on heavy-ion physics in the high luminosity era: the soft sector

This document summarizes thoughts on opportunities in the soft-QCD sector from high-energy nuclear collisions at high luminosities.Comment: 19 page

Prompt Tidal Disruption of Stars as an Electromagnetic Signature of Supermassive Black Hole Coalescence

A precise electromagnetic measurement of the sky coordinates and redshift of a coalescing black hole binary holds the key for using its gravitational wave (GW) signal to constrain cosmological parameters and to test general relativity. Here we show that the merger of ~10^{6-7}M_sun black holes is generically followed over a period of years by multiple electromagnetic flares from tidally disrupted stars. The sudden recoil imparted to the merged black hole by GW emission promptly fills its loss cone and results in a tidal disruption rate of stars as high as ~0.1 per year. The prompt disruption of a star within a single galaxy over a short period provides a unique electromagnetic flag of a recent black hole coalescence event, and sequential disruptions could be used on their own to calibrate the expected rate of GW sources for pulsar timing arrays or the proposed Laser Interferometer Space Antenna (LISA).Comment: 6 pages, 3 figure

Relic gravitational waves from light primordial black holes

The energy density of relic gravitational waves (GWs) emitted by primordial black holes (PBHs) is calculated. We estimate the intensity of GWs produced at quantum and classical scattering of PBHs, the classical graviton emission from the PBH binaries in the early Universe, and the graviton emission due to PBH evaporation. If nonrelativistic PBHs dominated the cosmological energy density prior to their evaporation, the probability of formation of dense clusters of PBHs and their binaries in such clusters would be significant and the energy density of the generated gravitational waves in the present day universe could exceed that produced by other known mechanisms. The intensity of these gravitational waves would be maximal in the GHz frequency band of the spectrum or higher and makes their observation very difficult by present detectors but also gives a rather good possibility to investigate it by present and future high frequency gravitational waves electromagnetic detectors. However, the low frequency part of the spectrum in the range $f\sim 0.1-10$ Hz may be detectable by the planned space interferometers DECIGO/BBO. For sufficiently long duration of the PBH matter dominated stage the cosmological energy fraction of GWs from inflation would be noticeably diluted.Comment: 32 pages, 4 figures; according to the referee comments some inaccurate statements are corrected and high frequency detectors of gravitational waves are briefly discusse