Large and powerful predators such as swordfishes, tunas, and many sharks are unique among fishes in that they possess physiological mechanisms that warm their eyes. A new investigation reported this week sheds important light on the purpose of warming the eyes and the advantage that "warm eyes" confer on ocean predators.
Swordfishes, which hunt in water as cold as 3°C (about 37°F), can maintain their brain and eye temperatures 10°C–15°C (18°F –27°F) above ambient temperatures by using a specially adapted heating organ in muscle next to their eyes. The biological significance of this has been a mystery. Now, however, innovative research has shown that warm eyes allow swordfishes to process visual information more than 10 times more quickly than eyes cooled to the temperatures of deep-water environments.
Ship-board experiments by Kerstin Fritsches of the University of Queensland, Richard Brill of the National Marine Fisheries Service, and Eric Warrant of the University of Lund focused on electroretinogram recordings of freshly caught swordfishes. These established that higher eye temperatures maintain the speed of the retinas response to stimuli. Using temperatures and light intensities aligned with swordfishes dive profiles, the team showed that by heating their eyes, swordfishes retain the ability to spot quickly moving objects, allowing them to intercept rapid and elusive prey.
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
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COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
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14.10.2016 | Event News
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21.10.2016 | Materials Sciences