Mostrando recursos 41 - 60 de 180,714

  1. TABLE OF CONTENTS


    Abstract: This Environmental Assessment/Regulatory Impact Review/Initial Regulatory Flexibility Analysis analyzes the impacts of allocating the Western and Central Gulf of Alaska Pacific cod TACs among the fixed gear sectors (hook-and-line catcher processors, hook-and-line catcher vessels, pot catcher processors, ≥60 ’ pot catcher vessels, and pot vessels <60 ' in length), jig sector, and trawl sectors based on recent sector catch histories. This action also includes provisions to increase the jig allocation if it is fully utilized. The proposed action is intended to provide stability and protect long-term investments of participants in the fishery by establishing sector allocations that reflect historic...

  2. $rec.titulo


    Compact n-gram models by incremental growing and clustering of histories This work concerns building n-gram language models that are suitable for large vocabulary speech recognition in devices that have a restricted amount of memory and space available. Our target language is Finnish, and in order to evade the problems of its rich morphology, we use sub-word units, morphs, as model units instead of the words. In the proposed model we apply incremental growing and clustering of the morph n-gram histories. By selecting the histories using maximum a posteriori estimation, and clustering them with information radius measure, we obtain a clustered...

  3. SEARCH FOR PREDICTORS OF EXCEPTIONAL HUMAN LONGEVITY: USING COMPUTERIZED GENEALOGIES AND INTERNET RESOURCES FOR HUMAN LONGEVITY STUDIES

    Natalia S. Gavrilova; Leonid A. Gavrilov
    This paper explores new opportunities provided by the ongoing revolution in information technology, computer science, and Internet expansion for studies of exceptional human longevity. To this aim, the detailed family data for 991 alleged centenarians born between 1875 and 1899 in the United States were extracted from publicly available computerized family histories of 75 million individuals available at the Rootsweb site. To validate the age of the centenarians, these records were linked first to the Social Security Administration Death Master File records (for death date validation) and then to the records of the U.S. censuses for 1900, 1910, and 1920...

  4. H. Marmohn, Y. Sundblad, and K. Schmidt (Editors) A General Multi-User Undo/Redo Model

    Rajiv Choudhary; Prasun Dewan
    A general multi-user undo/redo model must satisfy several requirements It must be compatible with an existing single-user undo/redo model, give individual users autonomy in executing undo/redo commands, support undo/redo of remote commands and the remote effects of local commands, be independent of the coupling, multicast, and concurrency control model, and allow undo/redo of arbitrary commands We have developed a multi-user undo/redo model for meeting these requirements The model constructs the command history of a particular user by including all local commands and those remote commands whose results were made visible to that user It allows a user to undo/redo corresponding...

  5. The Role of Adaptivity in Two-Level Adaptive Branch Prediction


    Seeking high branch–prediction accuracy, architects are making use of the extended history of individual branches. One approach is to divide the branch prediction task into two levels: the first records the results of previous branches; the second makes predictions based upon previous instances in which particular patterns arose. PAg predictors use simple state machines in the second level to provide adaptive predictions. We show that this adaptive level benefits from a high level of hysteresis. We further show that, if the predictions for this second level are fixed rather than adaptive, i.e. a PSg organization, the performance can be superior...

  6. WWW 2007 / Track: Data Mining Session: Mining in Social Networks NetProbe: A Fast and Scalable System for Fraud Detection in Online Auction Networks ABSTRACT

    Shashank P; Duen Horng Chau; Samuel Wang; Christos Faloutsos
    Given a large online network of online auction users and their histories of transactions, how can we spot anomalies and auction fraud? This paper describes the design and implementation of NetProbe, a system that we propose for solving this problem. NetProbe models auction users and transactions as a Markov Random Field tuned to detect the suspicious patterns that fraudsters create, and employs a Belief Propagation mechanism to detect likely fraudsters. Our experiments show that NetProbe is both efficient and effective for fraud detection. We report experiments on synthetic graphs with as many as 7,000 nodes and 30,000 edges, where NetProbe...

  7. An XML-Based Approach to Publishing and Querying the History of Databases

    Fusheng Wang; Carlo Zaniolo
    Abstract. There is much current interest in publishing and viewing databases as XML documents. The general benefits of this approach follow from the popularity of XML and the tool set available for visualizing and processing information encoded in this universal standard. In this paper, we explore the additional and unique benefits achieved by this approach on temporal database applications. We show that XML with XQuery can provide surprisingly effective solutions to the problem of supporting historical queries on past content of database relations and their evolution. Indeed, using XML, the histories of database relations can be naturally represented by temporally...

  8. Exploiting Web Browsing Histories to Identify User Needs

    Fabio Gasparetti
    Browsing activities are an important source of information to build profiles of the user interests and personalize the humancomputer interaction during information seeking tasks. Visited pages are easily collectible, e.g., from browsers ’ histories and toolbars, or desktop search tools, and they often contain documents related to the current user needs. Nevertheless, menus, advertisements or pages that cover multiple topics affect negatively the advantages of an implicit feedback technique that exploits these data to build and keep updated user profiles. This work describes a technique to collect text relevant to the current needs from sequences of pages visited by the...

  9. Drug Discovery Prospect from Untapped Species: Indications from Approved Natural Product Drugs

    Feng Zhu; Xiao Hua Ma; Chu Qin; Lin Tao; Xin Liu; Zhe Shi; Cun Long Zhang; Yan Tan; Yu Zong Chen; Yu Yang Jiang
    Due to extensive bioprospecting efforts of the past and technology factors, there have been questions about drug discovery prospect from untapped species. We analyzed recent trends of approved drugs derived from previously untapped species, which show no sign of untapped drug-productive species being near extinction and suggest high probability of deriving new drugs from new species in existing drug-productive species families and clusters. Case histories of recently approved drugs reveal useful strategies for deriving new drugs from the scaffolds and pharmacophores of the natural product leads of these untapped species. New technologies such as cryptic gene-cluster exploration may generate novel

  10. doi:10.1155/2012/231417 Research Article Exploring Factors Associated with Nonchange in Condom Use Behavior following Participation in an STI/HIV Prevention Intervention for African-American Adolescent Females

    Jessica M. Sales; Jennifer L. Brown; Ralph J. Diclemente; Eve Rose
    which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. To enhance future STI/HIV prevention efforts, this study examined factors associated with adolescents ’ failure to improve their condom use behaviors after participating in an STI/HIV prevention intervention. African-American adolescent females (N = 205; M age = 17.9) in an STI/HIV prevention intervention trial completed ACASI interviews and provided self-collected vaginal swabs to assess two prevalent STIs at baseline and 6 months after intervention. Analyses compared those who increased condom use after intervention (change group) to those whose condom use did not increase...

  11. ORIGINAL PAPER Multinucleated Giant Cells ’ Incidence, Immune Markers, and Significance: A Study of 172 Cases of Papillary Thyroid Carcinoma

    Shelly Naud; Æ Mark; F. Evans; Æ Abdel Elhosseiny
    Abstract Multinucleated giant cells (MGCs) are often detected in cases of papillary thyroid carcinoma (PTC). Their origin and significance, however, has not been established. One possibility is that they form in response to injury induced by fine needle aspiration biopsy (FNAB). Other hypotheses are that the chemically-altered colloid produced by PTC induces MGCs to act as colloidophages, or else MGCs are a non-specific immune response ingest-ing neoplastic follicle cells. We assigned 172 cases of PTC a semi-quantitative score for MGCs. Cases with ‘‘many’’ MGCs were immunohistochemically stained for AEI/AE-III, CD68, and CD163 to assess for epithelial vs histiocytic differentiation, and...

  12. DOI 10.1186/s13104-015-1409-0


    Enhancing the evaluation of pathogen transmission risk in a hospital by merging hand-hygiene compliance and contact data: a proof-of-concept study Rossana Mastrandrea1, Alberto Soto‑Aladro2,3, Philippe Brouqui2,3 and Alain Barrat1,4* Background: Hand‑hygiene compliance and contacts of health‑care workers largely determine the potential paths of pathogen transmission in hospital wards. We explored how the combination of data collected by two automated infrastructures based on wearable sensors and recording (1) use of hydro‑alcoholic solution and (2) contacts of health‑care workers provide an enhanced view of the risk of transmission events in the ward. Methods: We perform a proof‑of‑concept observational study. Detailed data on contact patterns and hand‑hygiene...

  13. Relationships among Egg Size, Composition, and Energy: A Comparative Study of Geminate Sea Urchins

    Justin S. Mcalister; Amy L. Moran
    Egg size is one of the fundamental parameters in the life histories of marine organisms. However, few studies have examined the relationships among egg size, composition, and energetic content in a phylogenetically controlled context. We investigated the associations among egg size, composition, and energy using a comparative system, geminate species formed by the closure of the Central American Seaway. We examined western Atlantic (WA) and eastern Pacific (EP) species in three echinoid genera, Echinometra, Eucidaris, and Diadema. In the genus with the largest difference in egg size between geminates (Echinometra), the eggs of WA species were larger, lipid rich and...

  14. Substantial Overlap Between Incarceration and Tuberculosis

    Maryam B. Haddad; Mary K. Foote; Susan M. Ray; David M. Maggio; Anne C. Spaulding
    Standard tuberculosis case reporting captures incarceration at diagnosis only. This retrospective analysis of 106 US-born adults with prevalent tuberculosis in 2011 found that 46.2 % had documented histories of being in jail or prison, including 16.0 % during the year before diagnosis.

  15. 2012b. Heterogeneity in genetic diversity among non-coding loci fails to fit neutral coalescent models of population history

    Jeffrey L. Peters; Trina E. Roberts; Kevin Winker; Kevin G. Mccracken
    Inferring aspects of the population histories of species using coalescent analyses of non-coding nuclear DNA has grown in popularity. These inferences, such as divergence, gene flow, and changes in population size, assume that genetic data reflect simple population histories and neutral evolutionary processes. However, violating model assumptions can result in a poor fit between empirical data and the models. We sampled 22 nuclear intron sequences from at least 19 different chromosomes (a genomic transect) to test for deviations from selective neutrality in the gadwall (Anas strepera), a Holarctic duck. Nucleotide diversity among these loci varied by nearly two orders of...

  16. RESEARCH ARTICLE Did


    female prisoners with psychiatric treatment befo ie s o at- a h t and 60 % for illicit drug use disorders [2]. Moreover, 42 % creasingly involved with the penal justice system, as they Mundt et al. BMC Psychiatry (2015) 15:5 DOI 10.1186/s12888-015-0387-zthat at times is served in psychiatric hospitals. So far,Montt, Chile Full list of author information is available at the end of the articleof female prisoners were estimated to have a personality disorders [3]. Most studies on prison inmates so far may have reduced access to psychiatric care [12-14]. Psychiatric bed reductions may be associated with in-creasing prison...

  17. [arte–feminismo–tecnología]: laboratorios de ciudadanía

    Creus, Maia
    Aquellas nuevas actitudes frente al arte y la vida que nos han legado las corrientes del Arte Conceptual del siglo XX, revisadas y reinterpretadas por determinadas mujeres artistas des de realidad tecnológica propia del siglo XXI, está abriendo un nuevo campo de batalla en el espacio cibernético global. Situados en ésta perspectiva, nos planteamos  la siguiente cuestión. La historia de la cultura en general y del arte  recientes, nos han demostrado que  la relación entre Arte-Tecnología-Conocimiento en manos de ciertas mujeres artistas, se convierte realmente, en un instrumento social y político de transformación. Ésta idea surge de la investigación en curso,...

  18. Representar lo microscópico: Nuevo pensamiento ecológico sobre arte y ciencia

    Buiani, Roberta
    Una varietat impressionant de representacions visuals que competeixen i es complementen ens ajuda a entendre el que és immaterial i invisible, pel fet d’assignar una aparença visual a les substàncies microscòpiques i submicroscòpiques. No obstant això, la gran varietat que domina la visualització de les coses microscòpiques suggereix que l’objecte representat manifesta una complexitat que no es pot resumir amb un sol artefacte; ni es tracta d’una cosa monolítica, d’una entitat prístina, ni de la «cosa en ella mateixa», que espera que la desmembrin i la representin. Mitjançant l’anàlisi de les instal·lacions de mitjans mixtos (mixed media) creades per bioartistes...

  19. Historiando el bioarte o los retos metodológicos de la Historia del Arte (de los medios)

    Rincón, Daniel; Cirlot, Lourdes
    Des dels primers anys del segle xxi el bioart s'ha consolidat com un camp d'especial interès per a artistes, teòrics i institucions. No obstant això, les relacions entre art, biologia i tecnologia es poden documentar des del primer terç del segle xx. La tasca d'historiar aquest context de relacions es fa necessària per a comprendre la gènesi i les transformacions que ha experimentat aquest camp de treball artístic. Aquest tipus d'anàlisi històrica revela que, sota l'aparent homogeneïtat del terme bioart, s'oculta una gran heterogeneïtat de pràctiques i discursos que no han de ser obviats, ja que són una font valuosa...

  20. Reporte del proyecto: Invenciones en los bordes de la Historia

    Burbano, Andres
    Aquest text és un reporti escrit en primera persona sobre el procés i els resultats del projecte de recerca: “Invencions en les vores de la Història. Re-significació de tecnologies medials des d'Amèrica Llatina”. El projecte estudia a nivell històric diverses tecnologies visuals, sonores i computacions que van ser proposades i desenvolupades a Amèrica Llatina en paral·lel a altres similars en diferents latituds del globus. La pregunta fonamental confronta les raons històriques i culturals per les quals les tecnologies proposades des d'Amèrica Llatina són en general desconegudes mentre altres similars van fer aportacions fonamentals a la cultura dels segles XIX i...

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