Results 31 to 40 of about 78,377 (265)

The Aerodynamics of Flapping Animal Flight [PDF]

open access: yesAmerican Zoologist, 1984
Our understanding of the aerodynamics of flapping animal flight is largely based on the quasi-steady assumption: the instantaneous aerodynamic forces on a flapping wing are assumed to be identical with those which the wing would experience in steady motion at the same instantaneous speed and angle of attack.
openaire   +1 more source

Limitations on Animal Flight Performance [PDF]

open access: yesJournal of Experimental Biology, 1991
ABSTRACT Flight performance seems to change systematically with body size: small animals can hover and fly over a wide range of speeds, but large birds taxi for takeoff and then fly over a narrow speed range. The traditional explanation for this is that the mass-specific power required for flight varies with speed according to a U-shaped
openaire   +1 more source

White-tailed deer response to vehicle approach: evidence of unclear and present danger. [PDF]

open access: yesPLoS ONE, 2014
The fundamental causes of animal-vehicle collisions are unclear, particularly at the level of animal detection of approaching vehicles and decision-making. Deer-vehicle collisions (DVCs) are especially costly in terms of animal mortality, property damage,
Bradley F Blackwell   +2 more
doaj   +1 more source

Lab-animal flights squeezed [PDF]

open access: yesNature, 2012
Two biggest cargo carriers affirm that they will not ship mammals and non-human primates, as activist pressure mounts to stop research-animal airlifts.
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Sex-related interannual plasticity in wing morphological design in Heliconius charithonia enhances flight metabolic performance.

open access: yesPLoS ONE, 2020
Flight morphological variations and its consequences on animal performance are common in winged insects. In the butterfly Heliconius charithonia, sex-related differences in the wing morphological design have been described resulting in differences in ...
Velia I Ramos-Pérez   +4 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Rethinking the Age of Zoo Reform

open access: yesHumanimalia, 2016
Lisa Uddin, Zoo Renewal: White Flight and the Animal Ghetto. Minneapolis: University of Minnesota Press, 2014. xi + 277 pp. with 8 color plates.
Takashi Ito
doaj   +1 more source

Adaptive Bird-like Genome Miniaturization During the Evolution of Scallop Swimming Lifestyle

open access: yesGenomics, Proteomics & Bioinformatics, 2022
Genome miniaturization drives key evolutionary innovations of adaptive traits in vertebrates, such as the flight evolution of birds. However, whether similar evolutionary processes exist in invertebrates remains poorly understood. Derived from the second-
Yuli Li   +10 more
doaj   +1 more source

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