Many dog owners who relinquish their pets to animal shelters are not entirely honest about their dogs behavioral problems probably for fear that their pets will be put to sleep, according to a study from the University of Pennsylvania and University of California veterinary schools. According to the researchers, these behavioral problems may sometimes pose a risk to an adopting family who could unknowingly take in an aggressive animal.
The researchers studied behavioral questionnaires given to owners leaving their dogs at shelters and found that people are less likely to report such behavioral problems as aggression and fear of strangers, if they believed that their responses would be shared with shelter staff. Their findings were published recently in the Journal of the American Veterinary Medical Association.
"Many shelters conduct behavior-based evaluations on animals they take in, but there are few better descriptions of a dogs temperament than an honest assessment from its owner through a questionnaire," said James Serpell, a professor in Penns School of Veterinary Medicine and director of Penns Center for the Interaction of Animals & Society. "Shelters are not in the business of giving up on the animals they receive, and they need the best information the owner can provide to keep both the animals and potential adopters safe."
Greg Lester | EurekAlert!
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Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
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Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
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Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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