Results 51 to 60 of about 88,141 (203)

Post-fledging Dependent Behaviour, Dispersion and Migration of Young Eastern Imperial Eagles from Slovakia as Revealed by Satellite Telemetry

open access: yesПернатые хищники и их охрана, 2018
In 2005, five nestling Imperial Eagles (Aquila heliaca) were fitted with battery-powered GPS Satellite Transmitters (PTTs) in Slovakia to study their behaviour after fledging, two of them in the east and the other three in the west of the country.
Bernd-Ulrich Meyburg   +4 more
doaj  

Critically assessing the utility of portable lead analyzers for wildlife conservation

open access: yesWildlife Society Bulletin, 2018
Lead (Pb) exposure in wildlife is a widespread management and conservation concern. Quantitative determination of Pb concentrations in wildlife tissues is the foundation for estimating exposure and risk.
Garth Herring   +9 more
doaj   +1 more source

Nest box use by American Kestrels and other cavity-nesting birds during the nonbreeding season

open access: yesAvian Conservation and Ecology, 2017
Nest boxes are posted to provide breeding sites for cavity-nesting birds but less is known about their function in the nonbreeding season, when nest boxes may become important roost sites.
Caitlin M. Davis   +2 more
doaj   +1 more source

A study of the correlation between the serum Latexin levels and the mTORC subunits Raptor and Rictor in the molecular pathogenesis of chronic lymphocytic leukemia

open access: yesMedicine Science, 2021
Hematopoietic stem cells (HSCs) ensure the lifelong production of blood cells throughout a lifetime. Latexin (Lxn) is thought to have a tumor suppressor role and endogenously down-regulate the number of HSCs via increased apoptosis.
Gokhan Pektas   +3 more
doaj   +1 more source

Unequal Error Protected JPEG 2000 Broadcast Scheme with Progressive Fountain Codes

open access: yes, 2012
This paper proposes a novel scheme, based on progressive fountain codes, for broadcasting JPEG 2000 multimedia. In such a broadcast scheme, progressive resolution levels of images/video have been unequally protected when transmitted using the proposed ...
Chen, Zhao   +3 more
core   +1 more source

Comparing manual and automated methods for identifying individual great gray owls via territorial calls

open access: yesWildlife Society Bulletin
Unique identification is essential for understanding population demography and often relies on capturing, tagging, and resighting or tracking known individuals.
Julia S. Polasik   +2 more
doaj   +1 more source

Repeated large scale loop migrations of an adult European Honey Buzzard

open access: yesAvocetta, 2019
During migration, birds adopt flight strategies that often differ between spring and autumn. This behaviour can lead to differences in migratory paths as well as in-flight performances between seasons and may help to explain seasonal differences in the ...
Nicolantonio Agostini   +3 more
doaj   +1 more source

SkyDOT (Sky Database for Objects in the Time Domain): A Virtual Observatory for Variability Studies at LANL

open access: yes, 2002
The mining of Virtual Observatories (VOs) is becoming a powerful new method for discovery in astronomy. Here we report on the development of SkyDOT (Sky Database for Objects in the Time domain), a new Virtual Observatory, which is dedicated to the study ...
Borozdin, K.   +7 more
core   +2 more sources

The Troublesome Broadband Evolution of GRB 061126: Does a Grey Burst Imply Grey Dust? [PDF]

open access: yes, 2007
We report on observations of a gamma-ray burst (GRB 061126) with an extremely bright (R ~ 12 mag at peak) early-time optical afterglow. The optical afterglow is already fading as a power law 22 seconds after the trigger, with no detectable prompt ...
A. H. Szentgyorgyi   +22 more
core   +3 more sources

Myths and Realities of Rateless Coding

open access: yes, 2011
Fixed-rate and rateless channel codes are generally treated separately in the related research literature and so, a novice in the field inevitably gets the impression that these channel codes are unrelated.
Bonello, Nicholas   +2 more
core   +1 more source

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