Search Results - "MacCallum, C. J."

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    THE MAINTENANCE OF REPRODUCTIVE ISOLATION IN A MOSAIC HYBRID ZONE BETWEEN THE FIRE-BELLIED TOADS BOMBINA BOMBINA AND B. VARIEGATA by Vines, T. H, Köhler, S. C, Thiel, M, Ghira, I, Sands, T. R, MacCallum, C. J, Barton, N. H, Nürnberger, B

    Published in Evolution (01-08-2003)
    “…Mosaic hybrid zones arise when ecologically differentiated taxa hybridize across a network of habitat patches. Frequent interbreeding across a small-scale…”
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    Journal Article
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    Reappearance of the annihilation line source at the Galactic Centre by Leventhal, M., Maccallum, C. J., Barthelmy, S. D., Gehrels, N., Teegarden, B. J., Tueller, J.

    Published in Nature (London) (04-05-1989)
    “…The results of a new balloon-borne measurements of gamma-ray emission from the Galactic Center using a germanium telescope are reported. The 511-keV line was…”
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    Resolution of the 1,238-keV gamma-ray line from supernova 1987A by Teegarden, B. J., Barthelmy, S. D., Gehrels, N., Tueller, J., Leventhal, M.

    Published in Nature (London) (11-05-1989)
    “…Observations of supernova 1987A from the maiden flight of the Gamma-Ray Imaging Spectrometer (GRIS) are reported. SN1987A was observed for a period of 11.1…”
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    Habitat Preference in the Bombina Hybrid Zone in Croatia by MacCallum, Catriona J., Nürnberger, Beate, Barton, N. H., Szymura, J. M.

    Published in Evolution (01-02-1998)
    “…This paper demonstrates the effect of habitat heterogeneity and a habitat preference on the genetic structure of a hybrid zone between the toads Bombina…”
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    Experimental Evidence for Habitat Dependent Selection in a Bombina Hybrid Zone by Maccallum, Catriona J., Nürnberger, Beate, Barton, N. H.

    “…Hybridizing taxa remain distinct for two main reasons. Natural selection acts against hybrids either because of their incompatible genome, or because of…”
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    Possible γ-ray line from the Crab Nebula by LEVENTHAL, M, MACCALLUM, C. J, WATTS, A. C

    Published in Nature (London) (21-04-1977)
    “…A balloon-borne gamma-ray telescope searching for celestial gamma-ray lines in the energy range 100 keV to 5.0 MeV provided evidence for a line feature from…”
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    THE MAINTENANCE OF REPRODUCTIVE ISOLATION IN A MOSAIC HYBRID ZONE BETWEEN THE FIRE-BELLIED TOADS BOMBINA BOMBINA AND B. VARIEGATA by Vines, T. H., Kohler, S. C., Thiel, M., Ghira, I., Sands, T. R., MacCallum, C. J., Barton, N. H., Nurnberger, B.

    Published in Evolution (01-08-2003)
    “… Mosaic hybrid zones arise when ecologically differentiated taxa hybridize across a network of habitat patches. Frequent interbreeding across a small‐scale…”
    Get full text
    Journal Article
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    The Development of a Segmented N-Type Germanium Detector, and Its Application to Astronomical Gamma-Ray Spectroscopy by Gehrels, N., Cline, T. L., Teegarden, B. J., Tueller, J., Leventhal, M., MacCallum, C. J., Hewka, P. V., Ryge, P.

    Published in IEEE transactions on nuclear science (01-02-1984)
    “…Extensive calculations and simulations have shown that the instrumental background in a coaxial germanium gamma-ray detector flown at balloon altitudes or in…”
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    Secretor state and immunoglobulin levels among women with recurrent urinary tract infections by Blackwell, C C, May, S J, Brettle, R P, MacCallum, C J, Weir, D M

    “…In this study we tested the hypothesis that the increased susceptibility of non-secretors of blood group antigens to recurrent urinary tract infections might…”
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    MOS-Transistor Radiation Detectors and X-Ray Dose-Enhancement Effects by Posey, L. D., Wrobel, T. F., Evans, D. C., Beezhold, W., Kelly, J. G., MacCallum, C. J., Coppage, F. N., Luera, T. F., Lorence, L. J., Smith, A. J.

    Published in IEEE transactions on nuclear science (01-12-1985)
    “…Sandia National Laboratory (SNL) CMOS IC dose detectors and 3N161 MOS Transistors were evaluated as pulsed X-radiation dosimeters and used as monitors to…”
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    The Maintenance Of Reproductive Isolation In A Mosaic Hybrid Zone Between The Fire-Bellied Toads Bombina Bombina And B. Variegata by Vines, TH, Koehler, S C, Thiel, M, Ghira, I, Sands, T R, MacCallum, C J, Barton, N H, Nuernberger, B

    Published in Evolution (01-08-2003)
    “…Mosaic hybrid zones arise when ecologically differentiated taxa hybridize across a network of habitat patches. Frequent interbreeding across a small-scale…”
    Get full text
    Journal Article
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    Analytical Prediction of Photo-Compton Emission Currents by Dellin, T. A., MacCallum, C. J.

    Published in IEEE transactions on nuclear science (01-01-1973)
    “…An analytical procedure for describing vacuum photoemission from one dimensional materials more than one electron range thick has been developed. The…”
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    Second Generation Analytical Photo-Compton Current Methods by Dellin, T. A., Huddleston, R. E., MacCallum, C. J.

    Published in IEEE transactions on nuclear science (01-01-1975)
    “…Analytical transport methods have been developed to predict photo-Compton currents (PCC) in many geometries. This paper presents the "second generation" status…”
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    Photo-compton currents at material interfaces: Theory and experiment by Dellin, T. A., Dolan, K. W., MacCallum, C. J.

    Published in IEEE transactions on nuclear science (01-12-1974)
    “…Analytical formulae are presented for the electron number current, energy current and energy deposition at the photon irradiated interface between different…”
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    Gamma-Ray-Line Astronomy by Leventhal, Marvin, MacCallum, Crawford J.

    Published in Scientific American (01-07-1980)
    “…The balloon and satellite detection of gamma rays from astrophysical sources is discussed. Supernovas and novas are considered with regard to the cosmic…”
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    Magazine Article
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