It’s been something of a mystery to scientists - how are blind mice able to synchronize their biological rhythms to day and night? New research by a team of scientists, including one from the University of Toronto, seems to have uncovered the answer.
Rods and cones in the outer retina are the eyes’ main photoreceptors, explains Nicholas Mrosovsky, professor emeritus in zoology at U of T. When these rods and cones degenerate, mammals and animals become blind. Despite this, however, some animals can synchronize their biological clocks to the day/night cycle, a problem that has perplexed scientists for the past decade.
"We believed there must be some other specialized receptor for detecting night and day. We now have evidence that this long sought-after photoreceptor is a layer of cells, located in the inner retina, that contain melanopsin, a pigment chemically related to other opsins [a type of protein] found in the rods and cones of the outer retina."
Janet Wong | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
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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.
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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.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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