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How 'nature's ultimate sensory machines' integrate sight and smell
02-14-2008 · EurekAlert!Adult fruit flies can distinguish small differences in odor concentration across antennae separated by less than one millimeter. Flies can also see in all directions at once, though the picture may be grainy...
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Keywords: nature, ultimate, sensory, machines, integrate, sight, smell, machine
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- Brown scientists explain inception of perception in the brain
03-05-2007 · EurekAlert!
All of human sensation -- sight, sound, taste -- begins in the brain when information moves from the thalamus to the neocortex. In Nature Neuroscience, Brown University researchers explain how cortical cells get activated during this critical transfer. The findings shed light on the inner workings of the cortex, the biggest part of the brain, and may help explain some forms of irregular electrical brain activity such as epileptic seizures.
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- A sensory organ, not the brain, differentiates male and female behavior in some mammals
08-05-2007 · EurekAlert!
Biologists at Harvard University have found that the epicenter of sex-specific behavior in many species may be a small sensory organ found in the noses of all terrestrial vertebrates except higher primates. Their work, appearing this week in the journal Nature, indicates that defects in this organ, known as the vomeronasal organ, lead female mice to adopt male behaviors such as mounting and pelvic thrusting while abandoning female behaviors such as nesting and nursing.
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- Pre-natal alcohol exposure shapes sensory preference, upping odds of later alcohol use and abuse
12-12-2007 · EurekAlert!
Young people whose mothers drank when pregnant may be more likely to abuse alcohol because, in the womb, their developing senses came to prefer its taste and smell. Researchers with the State University of New York Developmental Ethanol Research Center have found that because the developing nervous system adapts to whatever mothers eat and drink, young rats exposed to alcohol (ethanol) in the womb drank significantly more alcohol than nonexposed rats.
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- Advance in effort to fight malaria by tricking the mosquito's sense of smell
08-30-2007 · EurekAlert!
By mapping a specialized sensory organ that the malaria mosquito uses to zero in on its human prey, an international team of researchers has taken an important step toward developing new and improved repellants and attractants that can be used to reduce the threat of malaria, generally considered the most prevalent life-threatening disease in the world.
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- Charon -- An ice machine in the ultimate deep freeze
07-18-2007 · EurekAlert!
Frigid geysers spewing material up through cracks in the crust of Pluto's companion Charon, and recoating parts of its surface in ice crystals, could be making this distant world into the equivalent of an outer solar system ice machine.
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- Flexible genes allow ants to change destiny
05-24-2007 · EurekAlert!
The discovery of a flexible genetic coding in leaf-cutting ants sheds new light on how one of nature's ultimate self-organizing species breeds optimum numbers of each worker type to ensure the smooth running of the colony.
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- Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
07-11-2007 · EurekAlert!
An article published in the prestigious scientific journal Nature this week reports on a new understanding of the growth of human stem cells.
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- CSAIL hosts debate on robotic 'nature' and future
11-28-2006 · Massachusetts Institute of Technology (MIT)
"Creativity: The Mind, Machines, and Mathematics," a debate and discussion hosted by AI pioneer Rodney Brooks, will celebrate the 70th anniversary of Alan Turing's groundbreaking paper "On Computable Numbers," on Nov. 30.
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- Harvesting machine driving mesquite-to-ethanol potential
10-11-2006 · EurekAlert!
Knocking down mesquite hasn't been a problem in the past. Picking it up and getting it off the land has, said a Texas Agricultural Experiment Station researcher. That will change with a new mesquite harvester for use inwood-to-ethanol production, said Dr. Jim Ansley, Experiment Station rangeland ecologist. The only one of these machines in existence was demonstrated at the 2006 Range and Wildlife Field Day on Oct. 5 in Vernon.
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- Translating form into function
07-01-2007 · EurekAlert!
In the last 40 years, scientists have perfected ways to determine the knot-like structure of enzymes, but they've been stumped trying to translate the structure into an understanding of function -- what the enzyme actually does in the body. This puzzle has hurt drug discovery, since many of the most successful drugs work by blocking enzyme action. Now, in an expedited article in Nature, researchers show that a solution to the puzzle is finally in sight.
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