Results 51 to 60 of about 967,023 (260)

Differences between the Filling Velocities of the Left and Right Heart Ventricle in Racing Pigeons (Columba livia F. Domestica) and the Influence of Anesthesia with Isoflurane

open access: yesVeterinary Sciences, 2019
The ventricular filling velocities during diastole and the influence of isoflurane anesthesia on these blood flow velocities of the racing pigeon (n = 43) are evaluated by pulsed-wave (PW) Doppler sonography. Sonographic examination demonstrates an early
Marko Legler   +3 more
doaj   +1 more source

CENTRAL AND PERIPHERAL CIRCADIAN CLOCKS IN MAMMALS

open access: yesAnnual Review of Neuroscience, 2012
The circadian system of mammals is composed of a hierarchy of oscillators that function at the cellular, tissue and systems levels. A common molecular mechanism underlies the cell autonomous circadian oscillator throughout the body, yet this clock system
J. Mohawk, C. Green, J. Takahashi
semanticscholar   +1 more source

Ascorbic acid metabolism and functions: A comparison of plants and mammals

open access: yesFree Radical Biology & Medicine, 2018
&NA; Ascorbic acid is synthesised by eukaryotes, the known exceptions being primates and some other animal groups which have lost functional gulonolactone oxidase.
N. Smirnoff
semanticscholar   +1 more source

Drivers of spring migration phenology in Rocky Mountain elk

open access: yesScientific Reports
By migrating, ungulates take advantage of cyclical fluctuations in resources, which allows them to persist at greater population numbers than they would in the absence of these seasonal movements.
Storm Crews   +5 more
doaj   +1 more source

Silent predators: Revealing the parasites of Himalayan musk deer (Moschus leucogaster) in Manaslu Conservation Area, Nepal

open access: yesInternational Journal for Parasitology: Parasites and Wildlife
Parasites pose a significant threat to wildlife, yet their impact remains largely understudied, with limited research conducted on the parasites of wild animals.
Bishnu Achhami   +5 more
doaj   +1 more source

The Effects of Ship Noise on Marine Mammals—A Review

open access: yesFrontiers in Marine Science, 2019
The number of marine watercraft is on the rise—from private boats in coastal areas to commercial ships crossing oceans. A concomitant increase in underwater noise has been reported in several regions around the globe. Given the important role sound plays
C. Erbe   +5 more
semanticscholar   +1 more source

By-catch of common minke whales (Balaenoptera acutorostrata) in Norwegian demersal trawl and longline fisheries, 2011–2020

open access: yesNAMMCO Scientific Publications
The Norwegian High Seas Reference Fleet (HSRF) reported one minke whale (Balaenoptera acutorostrata) by-caught in demersal trawl fisheries and one in a longline in the period 2011–2020.
André Moan, Arne Bjørge
doaj   +1 more source

Overview of Current Research on Wolves in Russia

open access: yesFrontiers in Ecology and Evolution, 2022
This paper provides an overview of wolf research in Russia at the beginning of the 21st century. Wolf research covered various directions, including population density estimation, management methods and minimization of human-wildlife conflicts, general ...
Andrey D. Poyarkov   +3 more
doaj   +1 more source

Dynamic landscape and regulation of RNA editing in mammals

open access: yesNature, 2017
Adenosine-to-inosine (A-to-I) RNA editing is a conserved post-transcriptional mechanism mediated by ADAR enzymes that diversifies the transcriptome by altering selected nucleotides in RNA molecules.
M. Tan   +28 more
semanticscholar   +1 more source

Capture and Release of Minke Whales Offers New Research Opportunities, Including Measurements of Mysticete Hearing [PDF]

open access: yes
Knowledge about species-specific hearing is vital to assessing how anthropogenic noise impacts marine mammals. Unfortunately, no empirical audiogram exists for any mysticete whale.
Teilmann, Jonas   +7 more
core   +1 more source

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