Results 261 to 270 of about 363,904 (309)
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The borehole temperature record of climate warming in the mid-continent of North America
Global and Planetary Change, 1997Abstract Ground-surface temperature (GST) histories, determined from a carefully selected set of twenty-nine borehole temperature profiles, show a warming trend over the last century that increases systematically with latitude in the mid-continent of North America.
W.D. Gosnold, P.E. Todhunter, W. Schmidt
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Pleistocene Brown Bears in the Mid-Continent of North America
Science, 2004Current biogeographic models hypothesize that brown bears migrated from Asia to the New World ~100 to 50 thousand years ago but did not reach areas south of Beringia until ~13 to 12 thousand years ago, after the opening of a mid-continental ice-free corridor.
Matheus, Paul +3 more
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Is heart failure different on the two continents (North America and Europe)?
Current Cardiology Reports, 2004Heart failure is increasing in both North America and Europe. Although many similarities in the disease are apparent between the two continents, differences do exist. Heart failure with preserved systolic function appears to be increasingly important on both continents, and is associated more frequently with hypertension, aging, and female sex ...
Rachel, Hughes-Doichev, Mark E, Dunlap
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Current Problems in Diagnostic Radiology, 2021
To evaluate gender distribution in radiology professional society leadership positions. Our study intends to assess and compare the gender distribution among leadership roles and professional society committee memberships of the radiology societies and seek an understanding of potential associations between gender, academic research metrics ...
Kiran, Maddu +12 more
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To evaluate gender distribution in radiology professional society leadership positions. Our study intends to assess and compare the gender distribution among leadership roles and professional society committee memberships of the radiology societies and seek an understanding of potential associations between gender, academic research metrics ...
Kiran, Maddu +12 more
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Colonizing the American continent: Systematics of the genus Arabis in North America (Brassicaceae)
American Journal of Botany, 2010The circumscription of the genus Arabis underwent many and drastic changes within the past. Using DNA sequence information from the nuclear ribosomal RNA and parts of the plastid genome (trnL‐trnLF), as well as a critical evaluation of herbarium material from East Asia and North America, we circumscribe the various Arabis taxa of North America.
Marcus A, Koch +3 more
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International Journal of Sexuality and Gender Studies, 2002
This study examined the relation between suicidality and sexual orientation in an intercontinental sample (Asia, Australia, Europe, North America, and South America). Participants responded to a survey hosted on the Internet Website of an international news organization.
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This study examined the relation between suicidality and sexual orientation in an intercontinental sample (Asia, Australia, Europe, North America, and South America). Participants responded to a survey hosted on the Internet Website of an international news organization.
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Controls on Pennsylvanian Algal-Mound Distribution in Mid-Continent North America: ABSTRACT
AAPG Bulletin, 1985Middle (Desmoinesian) and Upper (Missourian) Pennsylvanian phylloid algal-mound distribution in Missouri, Kansas, and Oklahoma is largely controlled by subtle sea-floor topography. Topographic highs served as loci favoring initiation and continued growth of complexes.
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Continent-ocean transitions in western North America between latitudes 46 and 56 degrees
1994Abstract This chapter is intended to supplement rather than reproduce material presented in Transects B-1, B-2, and B-3 and their accompanying texts, although some overlap is unavoidable, particularly in summary descriptions of major lithological and structural packages that form the crust of this segment of the Cordillera.
J.W.H. Monger +5 more
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Geologic Evolution of North America
Science, 1963The oldest decipherable rock complexes within continents (more than 2.5 billion years old) are largely basaltic volcanics and graywacke. Recent and modern analogs are the island arcs formed along and adjacent to the unstable interface of continental and oceanic crusts.
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Origin of Phosphatic Black Shale Facies in Pennsylvanian Cyclothems of Mid-Continent North America
AAPG Bulletin, 1977Continued lithologic and paleontologic considerations of Kansas Upper Pennsylvanian megacyclothems more firmly establish the basic ascending sequence of: outside (nearshore) shale--middle (transgressive) limestone--core (offshore) shale--upper (regressive) limestone--outside (nearshore) shale, as representing a single transgressive-regressive sequence;
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