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Characterization of obsidian from the Tibetan Plateau by XRF and NAA
The Tibetan Plateau is the highest contiguous terrain on the planet. It is cold, dry, poor in oxygen, and one of the last habitats to have been colonized by our species. Here we present the firstExpand
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On the association of giant short-faced bear (Arctodus simus) and brown bear (Ursus arctos) in late Pleistocene North America
Abstract Climate change and human impacts are often implicated in Quaternary megafaunal extinctions. The discovery of associated remains of extinct giant short-faced bears (Arctodus simus) andExpand
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Archaeological assessment reveals Earth’s early transformation through land use
A synthetic history of human land use Humans began to leave lasting impacts on Earth's surface starting 10,000 to 8000 years ago. Through a synthetic collaboration with archaeologists around theExpand
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Motility factors identified in supernatants of human cholangiocarcinoma cell lines.
Motility factors, e.g. SF/HGF (scatter factor/hepatocyte growth factor) or AMF (autocrine motility factor) can influence the migration of tumor cells in vitro and may facilitate invasive growth andExpand
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An Experimental Approach to Understanding Burnt Fish Bone Assemblages within Archaeological Hearth Contexts
The Richardson Island site, an early Holocene site located in Haida Gwaii, has produced an extensive lithic assemblage. The faunal assemblage from this highly stratified, raised beach site is derivedExpand
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Giant short-faced bear (Arctodus simus) from late Wisconsinan deposits at Cowichan Head, Vancouver Island, British Columbia
A giant short-faced bear (Arctodus simus) ulna fragment was found at the base of exposed Quaternary sediments at Cowichan Head, southern Vancouver Island, British Columbia. In this paper, the ulnaExpand
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El tratamiento en Paraguay
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