Results 81 to 90 of about 93,705 (196)
Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
J. C. Hoeflich, Juan Liu
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Is cranial anatomy indicative of fossoriality? A case study of the mammaliaform Hadrocodium wui
Abstract Determining the ecology of fossil species presents considerable challenges due to the often fragmentary preservation of specimens. The mammaliaform Hadrocodium wui from the Jurassic of China is known only from the cranium and mandible but may have had a fossorial lifestyle.
Molly Tumelty, Stephan Lautenschlager
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Abstract Computed tomography (CT) enables rapid imaging of large‐scale studies of bone, but those datasets typically require manual segmentation, which is time‐consuming and prone to error. Convolutional neural networks (CNNs) offer an automated solution, achieving superior performance on image data.
Andrew H. Lee+3 more
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Joint Annual Meeting of American Anthropological Association and American Folk-Lore Society [PDF]
Georǵe Grant MacCurdy
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Variability of jaw muscles in Tunisian street dogs and adaptation to skull shape
Abstract The impact of artificial selection on the masticatory apparatus of dogs has been poorly studied, and comparative data with dogs subjected to more natural constraints are lacking. This study explores the jaw musculature of Tunisian street dogs, which are largely free from the influence of breed‐specific selection.
Colline Brassard+3 more
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Art. XI.—Notes on Prof. Tylor's “ Arabian Matriarchate.” propounded by him, as President of the Anthropological Section, British Association, Montreal, 1884. [PDF]
James W. Redhouse
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Early life functional transitions impact craniofacial morphology in osteogenesis imperfecta
Abstract Early life behaviors have a profound role in shaping adult craniofacial morphology. During early life, all mammals undergo the dynamic transition from suckling to mastication, a period coinciding with rapid cranial biomineralization. Osteogenesis imperfecta (OI), a genetic disorder that impacts the production of type I collagen, disrupts ...
Courtney A. Miller+2 more
wiley +1 more source
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley +1 more source