Researchers have developed and demonstrated the first handheld ophthalmology instrument with resolution-boosting adaptive optics technology that can image individual photoreceptors in the eye. The new portable instrument ...
Optics & Photonics
Aug 23, 2018
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218
Columbia scientists have identified a brain circuit that drives fruit flies' ability to see in color—and found that it bears a striking resemblance to the circuitry behind our own capacity for color vision. These findings ...
Molecular & Computational biology
Jan 9, 2020
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102
Producing retinal tissue from human embryonic stem cells is now possible thanks to a team of researchers led by Yoshiki Sasai of the RIKEN Center for Developmental Biology in Kobe, Japan.
Cell & Microbiology
Nov 1, 2012
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0
A popular view among evolutionary biologists that fundamental genes do not acquire new functions was challenged this week by a new study in the Proceedings of the National Academy of Sciences.
Evolution
May 11, 2009
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Millions of years of evolution have molded our eyes into highly sensitive optical detectors, surpassing even many man-made devices. Now, Leonid Krivitsky and his co-workers at the A*STAR Data Storage Institute and the A*STAR ...
Optics & Photonics
May 22, 2013
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0
(PhysOrg.com) -- Plants are very sensitive to light conditions because light is their source of energy and also a signal that activates the special photoreceptors that regulate growth, metabolism, and physiological development. ...
Cell & Microbiology
Dec 13, 2010
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0
Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A ...
Cell & Microbiology
Sep 6, 2011
1
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How does a plant know when to sprout a leaf, fold its petals or bloom? Why do humans experience jet lag after a trip abroad?
Cell & Microbiology
Aug 23, 2012
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0
Many people remember been told as kids when they refused to eat their vegetables that "carrots are good for your eyes." Although parents may not have fully understood it at the time, there is some truth to this. Carrots are ...
Biochemistry
May 11, 2020
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47
Flowering plants produce nectar to attract insect pollinators. Some plant species, such as Lima bean, also secrete nectar from so-called extrafloral nectaries to attract ants which in turn fend off herbivores. Scientists ...
Plants & Animals
Sep 27, 2010
1
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