Search Results - (Author, Cooperation:D. D. McCarthy)

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  1. 1
    Staff View
    Publication Date:
    2011-12-14
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Bone Marrow Cells/cytology ; Cell Lineage ; Cells, Cultured ; Chimera/immunology ; Citrobacter rodentium/immunology ; Coculture Techniques ; Female ; Germ-Free Life ; Granulocytes/cytology/metabolism ; Immunity, Innate/immunology ; Immunoglobulin A/biosynthesis/*immunology ; Intestinal Mucosa/cytology/immunology ; Intestine, Small/*cytology/*immunology/microbiology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Monocytes/cytology/metabolism ; Nitric Oxide Synthase Type II/biosynthesis/deficiency/metabolism ; Phenotype ; Plasma Cells/*cytology/*immunology/metabolism ; Spleen/cytology ; Stromal Cells/cytology ; Tumor Necrosis Factor-alpha/biosynthesis/deficiency/immunology/metabolism
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    1572-9478
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract A review of the accuracy of radio interferometric positions of extragalactic sources is given. A mean catalog of radio positions is presented. With the accuracy currently attainable, radio observations can contribute significantly to the determination of astronomical constants.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Kosek, W. ; McCarthy, D. D. ; Luzum, B. J.
    Springer
    Published 1998
    Staff View
    ISSN:
    1432-1394
    Keywords:
    Key words. Earth rotation  ;  Prediction  ;  Autocovariance
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Architecture, Civil Engineering, Surveying
    Notes:
    Abstract.  Autocovariance prediction has been applied to attempt to improve polar motion and UT1-UTC predictions. The predicted polar motion is the sum of the least-squares extrapolation model based on the Chandler circle, annual and semiannual ellipses, and a bias fit to the past 3 years of observations and the autocovariance prediction of these extrapolation residuals computed after subtraction of this model from pole coordinate data. This prediction method has been applied also to the UT1-UTC data, from which all known predictable effects were removed, but the prediction error has not been reduced with respect to the error of the current prediction model. However, the results show the possibility of decreasing polar motion prediction errors by about 50 for different prediction lengths from 50 to 200 days with respect to the errors of the current prediction model. Because of irregular variations in polar motion and UT1-UTC, the accuracy of the autocovariance prediction does depend on the epoch of the prediction. To explain irregular variations in x, y pole coordinate data, time-variable spectra of the equatorial components of the effective atmospheric angular momentum, determined by the National Center for Environmental Prediction, were computed. These time-variable spectra maxima for oscillations with periods of 100–140 days, which occurred in 1985, 1988, and 1990 could be responsible for excitation of the irregular short-period variations in pole coordinate data. Additionally, time-variable coherence between geodetic and atmospheric excitation function was computed, and the coherence maxima coincide also with the greatest irregular variations in polar motion extrapolation residuals.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses