Results 41 to 50 of about 78,377 (265)

The Flight of Birds and Other Animals [PDF]

Aerospace, 2015
Methods of observing birds in flight now include training them to fly under known conditions in wind tunnels, and fitting free-flying birds with data loggers, that are either retrieved or read remotely via satellite links. The performance that comes to light depends on the known limitations of the materials from which they are made, and the conditions ...
openaire   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Animalopters - towards a new dimension of flight mechanics [PDF]

Transport, 2002
Recently, it has been recognised that flapping wing propulsion can be more efficient than conventional propel­lers if applied to very small-scale vehicles, so-called MAVs (micro air vehicles).
J. A. Goszczynski, M. Lasek, J. Pietrucha, K. Sibilski   +3 more
doaj   +3 more sources

On the move: Influence of animal movements on count error during drone surveys

Ecology and Evolution
The use of remote sensing to monitor animal populations has greatly expanded during the last decade. Drones (i.e., Unoccupied Aircraft Systems or UAS) provide a cost‐ and time‐efficient remote sensing option to survey animals in various landscapes and ...
Emma A. Schultz, Natasha Ellison‐Neary, Melanie R. Boudreau, Garrett M. Street, Landon R. Jones, Kristine O. Evans, Raymond B. Iglay   +6 more
doaj   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

FEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas, Shahoon Khan, Abhishek Sharma, Byoungchun Lee, Savraj S. Grewal   +4 more
wiley   +1 more source

Vehicular traffic effects on elk and white-tailed deer behavior near wildlife underpasses.

PLoS ONE, 2022
Roads fragment animal populations, vehicles kill and injure animals, and traffic may affect animal behavior. Mitigation efforts (e.g., wildlife underpasses) are constructed to prevent fragmentation and reduce wildlife-vehicle collisions.
Mehdi Nojoumi, Anthony P Clevenger, Daniel T Blumstein, Eric S Abelson   +3 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Flight initiation by Ferruginous Hawks depends on disturbance type, experience, and the anthropogenic landscape. [PDF]

PLoS ONE, 2017
The expansion of humans and their related infrastructure is increasing the likelihood that wildlife will interact with humans. When disturbed by humans, animals often change their behaviour, which can result in time and energetic costs to that animal. An
Cameron J Nordell, Troy I Wellicome, Erin M Bayne   +2 more
doaj   +1 more source

SUSPENDED ANIMATION FOR DEEP SPACE FLIGHT

ASEAN Journal of Psychiatry
The discovery of extrasolar planets as well as the growing number of earth-like exoplanets being detected almost routinely, is galvanizing the interest of the public and space agencies alike to plan for exploratory missions to potentially habitable exoplanets. For manned interstellar space flight, ultralow subzero suspended animation strategies will be
Mauricio, Girard, Daniel, Barranco, Martina, Canatelli-Mallat, Camila D., Pasquini, José L., Cordeiro, Rodolfo G., Goya   +5 more
openaire   +2 more sources