Results 111 to 120 of about 1,309,728 (303)
Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection
The Anatomical Record, EarlyView.Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson +6 more
wiley +1 more source
Influenza Pandemics of the 20th Century
Emerging Infectious Diseases, 2006 Three worldwide (pandemic) outbreaks of influenza occurred in the 20th century: in 1918, 1957, and 1968. The latter 2 were in the era of modern virology and most thoroughly characterized. All 3 have been informally identified by their presumed sites of origin as Spanish, Asian, and Hong Kong influenza, respectively.
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González +5 more
wiley +1 more source
Can U.S. oil production survive the 20th century? [PDF]
The plunge in world oil prices has brought further difficulties to U.S. oil production, which has been declining in recent years. At the current low prices, most domestic oil wells are not profitable.
Chad R. Wilkerson, Russell L. Lamb
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, 2013 This paper examines the life and scandals of William Smith, born in Dyce, Scotland in 1882. In addition to the mystery surrounding the date of his own marriage and the birth of his first child, is Smith\u27s dalliance with his wife\u27s sister and the ...
Smith, Abigail
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Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
The Anatomical Record, EarlyView.Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +1 more source
Práticas da História, 2017 This article focuses on the problems of writing the history of the discovery of the Islands of Cabo Verde. I discuss how different historians, throughout the years, wrote and heuristically articulated arguments to construct the perspectives on ...
Víctor Barros
doaj
Challenges for reducing inequities in health and healthcare for the 21st Century [PDF]
, 2004 Human life expectancy during the time of the Roman Empire was approximately 28 years. In 1990, global life expectancy had increased to 65 years. The advances in life expectancy in the 20th century were remarkable by any standard.
De Vogli, R, Galal, O
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Early evolution of the gular musculature and its innervation in ray‐finned fishes
The Anatomical Record, EarlyView.Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo +4 more
wiley +1 more source
Method and Meaning: Selections from the Gettysburg College Collection
, 2014 What is art historical study and how it should be carried out are fundamental questions the exhibition Method and Meaning: Selections from the Gettysburg College Collection intends to answer.
Callahan, Shannon +7 more
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