Having a sympathetic owner did not lower the stress reaction of dogs that become anxious or fearful during noisy thunderstorms but living in a multi-dog household did, a Penn State study has found.
The study is among the first to measure, non-invasively, the production of a specific stress hormone produced by both the dog and its owner in response to stress in their home. The technique offers a new tool to assess animal welfare in a wide variety of non-laboratory settings, including high stress environments such as search and rescue and police-related pursuit.
Dr. Nancy Dreschel, a veterinarian who conducted the study as part of her work toward a doctoral degree in biobehavioral health, says, "There were no effects of the owners behavior or the quality of the dog-owner relationship on the stress hormone response that we measured in the canine. However, the presence of other dogs in the household was linked to less pronounced stress reactivity and more rapid recovery of the thunderstorm-phobic animal."
Barbara Hale | EurekAlert!
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In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
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