Search Results - "Umphrey, Gary J"

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    Efficient Modelling of Presence-Only Species Data via Local Background Sampling by Daniel, Jeffrey, Horrocks, Julie, Umphrey, Gary J.

    “…In species distribution modelling, records of species presence are often modelled as a realization of a spatial point process whose intensity is a function of…”
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    Journal Article
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    Dissection versus Prosection: A Comparative Assessment of the Course Experiences, Approaches to Learning, and Academic Performance of Non‐medical Undergraduate Students in Human Anatomy by McWatt, Sean C., Newton, Genevieve S., Umphrey, Gary J., Jadeski, Lorraine C.

    Published in Anatomical sciences education (01-03-2021)
    “…Many institutions rely upon prosection‐based laboratories as more resource‐efficient and time‐effective alternatives to traditional cadaver dissection for…”
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    Journal Article
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    Marker assisted selection for spawning date and co-variation among economically important fitness traits in a commercial strain of rainbow trout (Oncorhynchus mykiss) by Allen, Melissa S., Umphrey, Gary J., Danzmann, Roy G., Ferguson, Moira M.

    Published in Aquaculture (01-02-2017)
    “…The effects of marker assisted selection for spawning date in males on embryonic developmental rate, growth related traits and precocious male maturation and…”
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    Journal Article
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    Sperm parasitism in ants: selection for interspecific mating and hybridization by Umphrey, Gary J.

    Published in Ecology (Durham) (01-09-2006)
    “…Interspecific mating in eusocial Hymenoptera can be favored under certain conditions even if all hybrid offspring are completely infertile. This exploits two…”
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    Journal Article
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    Penalized composite likelihoods for inhomogeneous Gibbs point process models by Daniel, Jeffrey, Horrocks, Julie, Umphrey, Gary J.

    Published in Computational statistics & data analysis (01-08-2018)
    “…A novel general framework is presented for regularizing inhomogeneous Gibbs point process models via composite likelihood with convex penalty functions. Both…”
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    Journal Article
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    Electrophoretic evidence for hybridization in the ant genus Acanthomyops (Hymenoptera: Formicidae) by Umphrey, Gary J., Danzmann, Roy G.

    Published in Biochemical systematics and ecology (01-06-1998)
    “…Enzyme electrophoresis on a GPI locus was used to provide the first genetic tests of the hypotheses that hybridization occurs between the ant species…”
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    Maximum Likelihood Estimation of Allele Frequencies in the Eusocial Hymenoptera Using Offspring Genotypes by Umphrey, Gary J., Haddad, John N.

    Published in Biometrics (01-09-1996)
    “…An unusual data structure can arise in genetic studies on the eusocial Hymenoptera (ants, social bees, and social wasps) when frequencies of alleles expressed…”
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    Assessing the surveillance capability of Canada's national health surveys by Umphrey, G J, Kendall, O, MacNeill, I B

    Published in Chronic diseases in Canada (2001)
    “…We assessed Canada's national health surveys as surveillance instruments, with emphasis on comparing the temporal structure of data sets with those generated…”
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    Journal Article
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    Stochastic Hydrology by Haugh, Larry D.

    “…Stochastic Hydrology Ian B. MacNeill & Gary J. Umphrey (Eds), 1987 Dordrecht, D. Reidel xv+225 pp., £39.50 ISBN 90 277 2396 6…”
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    Book Review Journal Article
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    Time Series and Econometric Modelling by Ray, W. D.

    “…8. Time Series and Econometric Modelling. Edited by Ian B. MacNeil and Gary J. Umphrey. ISBN 9027723958. Reidel, 1987, 394p. £55.50 (Advances in the…”
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    Book Review Journal Article