Results 111 to 120 of about 357,418 (307)

Behaviour of dairy cows subjected to an aversive veterinary procedure. [PDF]

open access: yesBiotemas, 2009
On small dairy farms that lack appropriate handling facilities, cows can be restrained and subjected to veterinary inspection or treatment in their milking environment, which in turn might influence the behaviour of the animals, disrupting routine ...
Maria José Hötzel   +2 more
doaj  

The extent of the preserved feathers on the four-winged dinosaur Microraptor gui under ultraviolet light.

open access: yesPLoS ONE, 2010
BackgroundThe holotype of the theropod non-avian dinosaur Microraptor gui from the Early Cretaceous of China shows extensive preservation of feathers in a halo around the body and with flight feathers associated with both the fore and hindlimbs.
David W E Hone   +3 more
doaj   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

open access: yesAdvanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh   +2 more
wiley   +1 more source

The role of vortices in animal locomotion in fluids

open access: yesApplied and Computational Mechanics, 2014
The aim of this paper is to show the significance of vortices in animal locomotion in fluids on two deliberately chosen examples. The first example concerns lift generation by bird and insect wings, the second example briefly mentiones swimming and ...
Dvořák R.
doaj  

Miniaturized multi-sensor loggers provide new insight into year-round flight behaviour of small trans-Sahara avian migrants

open access: yesMovement Ecology, 2018
Background Over the past decade, the miniaturisation of animal borne tags such as geolocators and GPS-transmitters has revolutionized our knowledge of the whereabouts of migratory species.
Felix Liechti   +5 more
doaj   +1 more source

The control of wing kinematics and flight forces in fruit flies (Drosophila spp.) [PDF]

open access: yes, 1998
By simultaneously measuring flight forces and stroke kinematics in several species of fruit flies in the genus Drosophila, we have investigated the relationship between wing motion and aerodynamic force production. We induced tethered flies to vary their
Dickinson, Michael H.   +1 more
core  

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki   +7 more
wiley   +1 more source

Flight muscle mitochondria are robust against endurance flight damage in blackpoll warblers Setophaga striata

open access: yesJournal of Avian Biology
Migratory birds are physiologically challenged by intense exercise while fasting during flights that may last hours to days. Exercise‐induced oxidative stress could compromise flight performance by inducing mitochondrial dysfunction in the flight muscle.
Soren Z. Coulson   +3 more
doaj   +1 more source

Pharmacokinetics and Pharmacodynamics in Space [PDF]

open access: yes
The Pharmacokinetics and Pharmacodynamics Panel met on 29-30 Aug. 1988 at the Lunar and Planetary Institute in Houston, Texas to discuss pharmacokinetic and pharmacodynamic implications of space flight and make recommendations for operational and ...
Cintron, Nitza M., Putcha, Lakshmi
core   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

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