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Effects of total sleep deprivation on performance in a manual spacecraft docking task
Sleep deprivation and circadian rhythm disruptions are highly prevalent in shift workers, and also among astronauts. Resulting sleepiness can reduce...
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Functional space analyses reveal the function and evolution of the most bizarre theropod manual unguals
Maniraptoran dinosaurs include the ancestors of birds, and most used their hands for grasping and in flight, but early-branching maniraptorans had...
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Convergent Evolution of Manual and Pedal Grasping Capabilities in Tetrapods
Grasping behavior and manipulation using the hand and/or foot is widespread among tetrapods and can be used in various contexts in the daily life of... -
Digit ratio in the common toad Bufo bufo: the effects of reduced fingers and of age dependency
IntroductionDespite the growing number of studies describing digit ratio patterns in tetrapods, knowledge concerning certain basic issues is still...
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Variation in claw morphology among the digits of Bent-toed geckos (Cyrtodactylus: Gekkota: Gekkonidae)
BackgroundEcomorphological studies of lizards have increasingly employed comparison of claw morphology among species in relation to spatial niche...
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Intraspecific variation in digit reduction in Testudo: the case of the Hermann’s tortoise
Phalangeal reduction is a common and widespread phenomenon among tortoises that has been associated with the adaptation to terrestrial life. While...
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An automated liquid jet for fluorescence dosimetry and microsecond radiolytic labeling of proteins
X-ray radiolytic labeling uses broadband X-rays for in situ hydroxyl radical labeling to map protein interactions and conformation. High flux density...
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A new confuciusornithid bird with a secondary epiphyseal ossification reveals phylogenetic changes in confuciusornithid flight mode
The confuciusornithids are the earliest known beaked birds, and constitute the only species-rich clade of Early Cretaceous pygostylian birds that...
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The TrEase web service: inferring phylogenetic trees with ease
Phylogenetic inference is done regularly in many biological studies not focussed on the phylogeny itself, but which use phylogeny as a tool to infer...
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Decoding the best automated segmentation tools for vascular white matter hyperintensities in the aging brain: a clinician’s guide to precision and purpose
White matter hyperintensities of vascular origin (WMH) are commonly found in individuals over 60 and increase in prevalence with age. The...
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The Integument and Associated Structures of the Primate Foot
Primate manual and pedal skin has remained an area of considerable interest for evolutionary anthropologists because of its importance in locomotion... -
The Feet of Paleogene Primates
The Paleogene epoch was a dynamic time for mammalian evolution, including the fossil relatives of primates. Several adaptively significant features... -
Functional morphology of plesiadapiform distal phalanges and implications for the evolution of arboreality in Paleogene euarchontans
With a few exceptions, crown-clade Primates differ from other arboreal mammalian clades by having nails instead of claws on most post-axial digits....
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3D Printed Models for Veterinary Anatomy Teaching
With the advent of widespread, affordable 3D printers and a demand for adjunctive veterinary anatomy models, the use of 3D printing in veterinary... -
Assessment of Cell Viability in Electrically Excitable Muscle Cells Through Intact Twitch Stimulation
Muscle cells (i.e. skeletal muscle fibers) are fully viable and functional when their excitation-contraction (EC) coupling machinery is intact. This... -
Generalization of procedural motor sequence learning after a single practice trial
When humans begin learning new motor skills, they typically display early rapid performance improvements. It is not well understood how knowledge...
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Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies
The Cretaceous is a critical time interval that encompasses explosive diversifications of terrestrial vertebrates, particularly the period when the...
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Thermal Inactivation of Escherichia coli O157:H7 in Non-intact Reconstructed Beef Patties
We will manufacture non-intact reconstructed beef patties, inoculating it with E. coli O157:H7 and aerobically storing in a PVC film-covered foam... -
Anatomy and phylogeny of a new small macraucheniid (Mammalia: Litopterna) from the Bahía Inglesa Formation (late Miocene), Atacama Region, Northern Chile
We describe a new macraucheniine macraucheniid, Micrauchenia saladensis gen. et sp. nov., from the late Miocene (Huayquerian SALMA). This is the...
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The Skeleton of the Manus of Scelidotherium (Xenarthra, Mylodontidae) Specimens from the Pleistocene of the Province of Córdoba, Argentina, and its Systematic Implications
Dental and craniomandibular data have been predominantly used to infer relationships among mylodontid ground sloths. Recent studies indicate the...