Search Results - "Shafer, D. S."

Wildfire responses to abrupt climate change in North America by Marlon, J.R, Bartlein, P.J, Walsh, M.K, Harrison, S.P, Brown, K.J, Edwards, M.E, Higuera, P.E, Power, M.J, Anderson, R.S, Briles, C, Brunelle, A, Carcaillet, C, Daniels, M, Hu, F.S, Lavoie, M, Long, C, Minckley, T, Richard, P.J.H, Scott, A.C, Shafer, D.S, Tinner, W, Umbanhowar, C.E. Jr, Whitlock, C

“…It is widely accepted, based on data from the last few decades and on model simulations, that anthropogenic climate change will cause increased fire activity…”
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Leonid Antonovich Cherkas by Amel’kin, V. V., Andreev, A. F., Gaishun, I. V., Gromak, V. I., Il’in, V. A., Izobov, N. A., Kiguradze, I. T., Llibre, J., Mironenko, V. I., Pliss, V. A., Romanovskii, V. G., Rozov, N. Kh, Sadovskii, A. P., Schneider, K. R., Sergeev, I. N., Shafer, D. S., Shemyakina, T. K., Vulpe, N. I., Zegeling, A., Zhang, W., Żołądek, H.

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Sporormiella fungal spores, a palynological means of detecting herbivore density by Davis, Owen K., Shafer, David S.

“…During the historic period, spores of the dung fungus Sporormiella are abundant in lake and cave sediment where livestock are plentiful in the western United…”
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Modeling Transport of High Density Metal Contaminants in Ephemeral Flow Systems by Jenkins, S, Shafer, D. S, Forsee, W. J, Miller, J. J, Meyer, W. J

“…Flow and transport models have been developed to address the potential for surficial water transport of two high density radioactive metals at sites in the…”
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1:-3 resonant centers on C super(2) with homogeneous cubic nonlinearities by Hu, Z, Romanovski, V G, Shafer, D S

“…We characterize the collection of systems of differential equations on C super(2) of the form x?=x+p(x,y), y?=-3y+q(x,y), where p and q are homogeneous…”
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COMMUNITY ENVIRONMENTAL MONITORING PROGRAM: A CASE STUDY OF PUBLIC EDUCATION AND INVOLVEMENT IN RADIOLOGICAL MONITORING by Shafer, David S, Hartwell, William T

“…The publicʼs trust in the source of information about radiation is a key element of its acceptance. The public tends to trust two groups where risk…”
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A Numerical Approach to Bifurcations from Quadratic Centers by Shafer, Douglas S, Wu, Xiaonan, Zegeling, André

“…A combination of analytical and numerical work is done to analyze bifurcation of limit cycles from non-Hamiltonian codimension-three quadratic centers. The…”
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Impacts of interrelated biotic and abiotic processes during the past 125 000 years of landscape evolution in the Northern Mojave Desert, Nevada, USA by Shafer, D.S., Young, M.H., Zitzer, S.F., Caldwell, T.G., McDonald, E.V.

“…Interrelated, biotic (flora and fauna) and abiotic (pedogenesis and hydrology) processes were examined at four sites (30, and approximately 1000–3000, 7000–12…”
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Flat Laurel Gap Bog, Pisgah Ridge, North Carolina: Late Holocene development of a high-elevation heath bald by Shafer, D.S

“…Flat Laurel Gap Bog of Pisgah Ridge in the Balsam Mountains of North Carolina is a high-elevation (1500 m) heath bald and Appalachian bog. The bog sediments…”
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Impacts of interrelated biotic and abiotic processes during the past 125000 years of landscape evolution in the Northern Mojave Desert, Nevada, USA by SHARER, D. S, YOUNG, M. H, ZITZER, S. F, CALDWELL, T. G, MCDONALD, E. V

“…Interrelated, biotic (flora and fauna) and abiotic (pedogenesis and hydrology) processes were examined at four sites (30, and approximately 1000-3000,…”
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HOLOCENE VEGETATION AND HISTORIC GRAZING IMPACTS AT CAPITOL REEF NATIONAL PARK RECONSTRUCTED USING PACKRAT MIDDENS by Cole, Kenneth L., Henderson, Norman, Shafer, David S.

“…Mid- to late-Holocene vegetation change from a remote high-desert site was reconstructed using plant macrofossils and pollen from 9 packrat middens ranging…”
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CHARACTERIZING POTENTIAL EXPOSURE TO THE PUBLIC FROM LOW-LEVEL RADIOACTIVE WASTE TRANSPORTATION BY TRUCK by Miller, Julianne J, Shafer, David S, Gray, Karen J, Church, Bruce W, Tappen, Jeffrey J, Campbell, Scott A, Holz, Barbara A

“…To address public concern about potential exposure to gamma radiation from legal-weight low-level radioactive waste truck shipments to the Nevada Test Site, a…”
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Integral invariants and limit sets of planar vector fields by García, Isaac A., Shafer, Douglas S.

“…We show that if a planar system of differential equations admits an inverse integrating factor V defined in a neighborhood of a singular point with exactly one…”
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Cervical Spine Motion during Extrication by Engsberg, Jack R., PhD, Standeven, John W., PhD, Shurtleff, Timothy L., OTD, Eggars, Jessica L., MSOT, Shafer, Jeffery S., MD, EMTP, Naunheim, Rosanne S., MD

“…Abstract Background It has been estimated that up to one-quarter of spinal cord injuries may be significantly worsened during extrication or early treatment…”
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Bifurcation of Limit Cycles from Quadratic Centers by Shafer, D.S., Zegeling, A.

“…Bifurcation of limit cycles from the class Q NH 3 of quadratic systems possessing centers is investigated. Bifurcation diagrams for various systems in this…”
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Holocene biogeography of spruce-fir forests in southeastern Arizona: implications for the endangered Mt. Graham red squirrel by Anderson, R.S. (Northern Arizona University, Flagstaff, AZ), Shafer, D.S

“…Pollen, plant macrofossils, and radiocarbon dates on sediments from a small cienega on Mt. Graham in southeastern Arizona suggest that the occurrence of the…”
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Structure and Stability of Gradient Polynomial Vector Fields by Shafer, Douglas S.

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Restrictions on the Equivalence Homeomorphism in Stability of Polynomial Vector Fields by Dumortier, Freddy, Shafer, Douglas S.

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Separatrix and Limit Cycles of Quadratic Systems and Dulac's Theorem by Chicone, Carmen, Shafer, Douglas S.

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