58,891 research outputs found

    An annotated checklist of Wisconsin Scarabaeoidea (Coleoptera)

    Get PDF
    A survey of Wisconsin Scarabaeoidea (Coleoptera) conducted from literature searches, collection inventories, and three years offield work (1997-1999), yielded 177 species representing nine families, two of which, Ochodaeidae and Ceratocanthidae, represent new state family records. Fifty-six species (32% of the Wisconsin fauna) represent new state species records, having not previously been recorded from the state. Literature and collection distributional records suggest the potential for at least 33 additional species to occur in Wisconsin

    Searching for an anomalous tˉqγ\bar t q \gamma coupling via single top quark production at a γγ\gamma\gamma collider

    Full text link
    We investigate the potential of a high-energy γγ\gamma\gamma collider to detect an anomalous tˉqγ\bar t q \gamma coupling from observation of the reaction γγ→tqˉ\gamma \gamma \to t\bar q, tˉq\bar t q, where q=cq=c or uu. We find that with bb-tagging and suitable kinematic cuts this process should be observable if the anomalous coupling κ/Λ\kappa/\Lambda is no less than about 0.05/TeV, where Λ\Lambda is the scale of new physics associated with the anomalous interaction. This improves upon the bound possible from observation of top decays at the Tevatron.Comment: 13 pages, RevTeX, 1 PS figur

    New Species Records for Wisconsin False Click Beetles (Coleoptera: Eucnemidae),

    Get PDF
    In Wisconsin, Microrhagus opacus, Euryptychus ulkei and Fornax bicolor are recorded for the first time. Records for these three species are based on nine specimens, most of which were taken since 2008. Two specimens of M. opacus taken from a Grant County Malaise trap in the late 1970’s as part of a statewide gypsy moth parasitoid recovery project, were previously identified as Microrhagus audax. Most of the specimens reported herein were taken late in the collecting season, primarily during August. A checklist of the 20 genera and 41 species of Wisconsin Eucnemidae is also included

    Simulator for multilevel optimization research

    Get PDF
    A computer program designed to simulate and improve multilevel optimization techniques is described. By using simple analytic functions to represent complex engineering analyses, the simulator can generate and test a large variety of multilevel decomposition strategies in a relatively short time. This type of research is an essential step toward routine optimization of large aerospace systems. The paper discusses the types of optimization problems handled by the simulator and gives input and output listings and plots for a sample problem. It also describes multilevel implementation techniques which have value beyond the present computer program. Thus, this document serves as a user's manual for the simulator and as a guide for building future multilevel optimization applications

    Comments on a Major Range Extension of the Little-Known Acrocera bakeri (Diptera: Acroceridae)

    Get PDF
    The spider fly Acrocera bakeri Coquillett, 1904 (Diptera: Acroceridae) is reported as a new state record for Wisconsin. This is a major range extension, because this rarely-encountered species was previously known only from the western U.S., specifically Arizona, California, and Nevada. The taxonomic history of the species is briefly discussed and hypotheses are offered for its unexpected presence in Wisconsin

    Automated biowaste sampling system improved feces collection, mass measurement and sampling

    Get PDF
    The capability of the basic automated Biowaste Sampling System (ABSS) hardware was extended and improved through the design, fabrication and test of breadboard hardware. A preliminary system design effort established the feasibility of integrating the breadboard concepts into the ABSS

    Single spin- and chiral-glass transition in vector spin glasses in three-dimensions

    Full text link
    Results of Monte Carlo simulations of XY and Heisenberg spin glass models in three dimensions are presented. A finite size scaling analysis of the correlation length of the spins and chiralities of both models shows that there is a single, finite-temperature transition at which both spins and chiralities order.Comment: 5 pages, 5 figures. Replaced by published versio

    Carrion Beetles (Coleoptera: Silphidae) of Wisconsin

    Get PDF
    The first comprehensive faunal survey of the carrion beetles (Coleoptera: Silphidae) of Wisconsin is presented. Six genera and 14 species are recorded from the state, including a new state record, Heterosilpha ramosa (Say). Nicrophorus americanus Olivier was not recovered during this study. An annotated checklist includes species-specific geographical and temporal distributions, remarks on foods and habitat, and counties of specimen collections for each species
    • …
    corecore