1,358 research outputs found

    Correlation of white-tailed deer activity, distribution and behavior with climatic and other environmental factors

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    The objectives of this job were: (1) to document daily and seasonal patterns of distribution; (2) to examine the relationship of environmental variables to distribution patterns; (3) to document daily and seasonal activity patterns; (4) to examine the relationship of environmental variables to activity patterns; (5) to examine the nature of distribution and activity patterns in relation to physiological-psychological changes in the deer (as determined in other studies); (6) to observe activity and ranging of individuals and to relate these observations to general patterns; (7) to observe social behavior and to relate it to seasonal patterns; (8) to observe the response of deer to human disturbance and to relate changes in this response to seasonal patterns

    Study of pesudoscalar transition form factors within light front quark model

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    We study the transition form factors of the pesudoscalar mesons (π,η\pi,\eta and ηâ€Č\eta^{\prime}) as functions of the momentum transfer Q2Q^2 within the light-front quark model. We compare our results with the recent experimental data by CELLO, CLEO, BaBar and Belle. By considering the possible uncertainties from the quark masses, we illustrate that our predicted form factors can fit with all the data, including those at the large Q2Q^2 regions.Comment: 10 pages, 4 figures, accepted for publication in Phys. Rev.

    JSC ECLSS R/T Program Overview

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    Viewgraphs on Johnson Space Center Environmental Control and Life Support System (ECLSS) research and technology program overview are presented. Topics covered include: advancements in electrochemical CO2 removal; supercritical water waste oxidation; electrooxidation for post-treatment of reclaimed water; and photocatalytic post-treatment of reclaimed water

    Meson Decay Constants from the Valence Approximation to Lattice QCD

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    We evaluate fπ/mρf_{\pi}/ m_{\rho}, fK/mρf_K/ m_{\rho}, 1/fρ1/f_{\rho}, and mϕ/(fϕmρ) m_{\phi}/(f_{\phi} m_{\rho}), extrapolated to physical quark mass, zero lattice spacing and infinite volume, for lattice QCD with Wilson quarks in the valence (quenched) approximation. The predicted ratios differ from experiment by amounts ranging from 12\% to 17\% equivalent to between 0.9 and 2.8 times the corresponding statistical uncertainties.Comment: uufiles encoded copy of 40 page Latex article, including 14 figures in Postscript. The long version of hep-lat/9302012, IBM/HET 93-

    Holomorphic anomaly equations and the Igusa cusp form conjecture

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    Let SS be a K3 surface and let EE be an elliptic curve. We solve the reduced Gromov-Witten theory of the Calabi-Yau threefold S×ES \times E for all curve classes which are primitive in the K3 factor. In particular, we deduce the Igusa cusp form conjecture. The proof relies on new results in the Gromov-Witten theory of elliptic curves and K3 surfaces. We show the generating series of Gromov-Witten classes of an elliptic curve are cycle-valued quasimodular forms and satisfy a holomorphic anomaly equation. The quasimodularity generalizes a result by Okounkov and Pandharipande, and the holomorphic anomaly equation proves a conjecture of Milanov, Ruan and Shen. We further conjecture quasimodularity and holomorphic anomaly equations for the cycle-valued Gromov-Witten theory of every elliptic fibration with section. The conjecture generalizes the holomorphic anomaly equations for ellliptic Calabi-Yau threefolds predicted by Bershadsky, Cecotti, Ooguri, and Vafa. We show a modified conjecture holds numerically for the reduced Gromov-Witten theory of K3 surfaces in primitive classes.Comment: 68 page

    Next to leading order eta production at hadron colliders

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    Inclusive eta production at hadron colliders is considered,based on evaluation of eta fragmentation functions at next to leading order. Absolute predictions at LHC and SSC are presented, including the ratio η/π0\eta/\pi^0, together with the estimate of the theoretical uncertainty, as a possible neutral background to the H→γγH\to \gamma\gamma detection.Comment: 8 pages, latex, FNT/T-93/13,14 figures avilable upon reques

    Ground State of the Quantum Symmetric Finite Size XXZ Spin Chain with Anisotropy Parameter Δ=1/2\Delta = {1/2}

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    We find an analytic solution of the Bethe Ansatz equations (BAE) for the special case of a finite XXZ spin chain with free boundary conditions and with a complex surface field which provides for Uq(sl(2))U_q(sl(2)) symmetry of the Hamiltonian. More precisely, we find one nontrivial solution, corresponding to the ground state of the system with anisotropy parameter Δ=1/2\Delta = {1/2} corresponding to q3=−1q^3 = -1.Comment: 6 page

    Prospectus, November 7, 1979

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    LOCAL CLUB LOCKED IN WITH JOLIET INMATES; Week in Review: Across the globe, In the nation, Throughout the state, Etc
.; ERA activists need new blood; Briefs: Youthgrants offering 100 awards, Nat\u27l Lawyer Guild holds conference, Real Estate review, PC offering film course, Faculty wives activity tonight, Blood drive nets gallons; Awareness club rallied for tax; America has not failed--debate did; Letters to the Editor: Headline found offensive, Convocations Senator has mixed emotions, Foreigners have complaint right, Apathy is universal, Lack of coverage pointed out; Audience awakens to AATW music; Pablo cruises to the sun; Classifieds; Mary Lee Sargent: promoting women\u27s course; Parkland College Men\u27s Basketball; College Day at PC Nov. 7; Cooper has high hopes; V-ball advances; Parkland to host State Volleyball Tourney; Contestants have easy week; Fast Freddy Contest Images literary magazine pages 5-8https://spark.parkland.edu/prospectus_1979/1005/thumbnail.jp

    Conformal Field Theories, Graphs and Quantum Algebras

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    This article reviews some recent progress in our understanding of the structure of Rational Conformal Field Theories, based on ideas that originate for a large part in the work of A. Ocneanu. The consistency conditions that generalize modular invariance for a given RCFT in the presence of various types of boundary conditions --open, twisted-- are encoded in a system of integer multiplicities that form matrix representations of fusion-like algebras. These multiplicities are also the combinatorial data that enable one to construct an abstract ``quantum'' algebra, whose 6j6j- and 3j3j-symbols contain essential information on the Operator Product Algebra of the RCFT and are part of a cell system, subject to pentagonal identities. It looks quite plausible that the classification of a wide class of RCFT amounts to a classification of ``Weak C∗C^*- Hopf algebras''.Comment: 23 pages, 12 figures, LateX. To appear in MATHPHYS ODYSSEY 2001 --Integrable Models and Beyond, ed. M. Kashiwara and T. Miwa, Progress in Math., Birkhauser. References and comments adde

    Continuous optical monitoring during the prompt emission of GRB 060111B

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    We present the time-resolved optical emission of GRB 060111B during its prompt phase, measured with the TAROT robotic observatory. This is the first time that the optical emission from a gamma-ray burst has been continuously monitored with a temporal resolution of a few seconds during the prompt gamma-ray phase. The temporal evolution of the prompt optical emission at the level of several seconds is used to provide a clue to the origin of this emission. The optical emission was found to decay steadily from our first measure, 28s after the trigger, in contrast to the gamma-ray emission, which exhibits strong variability at the same time. This behaviour strongly suggests that the optical emission is due to the reverse shock
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