News tagged with cones
Nanometer-scale growth of cone cells tracked in living human eye
Humans see color thanks to cone cells, specialized light-sensing neurons located in the retina along the inner surface of the eyeball. The actual light-sensing section of these cells is called the outer segment, which is ...
Dec 20, 2011 |
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Mapping the formation of an underwater volcano
On Oct. 9 an underwater volcano started to emerge in waters off El Hierro Island in the Canaries, Spain. Researchers of the Spanish Institute of Oceanography (IEO, Ministry of Science and Innovation) only needed 15 days to ...
Space & Earth / Earth Sciences
Oct 28, 2011 |
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Helping neurons stay on track
The complex inner wiring of the brain is coordinated in part by chemical guidance factors that help direct the interactions between individual neurons. As growing cells extend their axons outward, these tendrils ...
Medicine & Health / Neuroscience
Aug 26, 2011 |
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Historic first images of rod photoreceptors in the living human eye
Scientists today reported that the tiny light-sensing cells known as rods have been clearly and directly imaged in the living eye for the first time. Using adaptive optics (AO), the same technology astronomers ...
Jun 08, 2011 |
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New target to wipe pain away mapped
Researchers at the Indiana University School of Medicine have discovered a peptide that short circuits a pathway for chronic pain. Unlike current treatments this peptide does not exhibit deleterious side effects such as ...
Medicine & Health / Neuroscience
Jun 05, 2011 |
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Gifts from the Gila monster
Who would have thought that Gila monster saliva would be the inspiration for a blockbuster new drug for Type 2 diabetes? Or that medicines for chronic pain, heart attacks, high blood pressure and stroke would emerge from ...
Jun 01, 2011 |
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Scientists make strides in vision research
New research at UC Santa Barbara is contributing to the basic biological understanding of how retinas develop. The study is part of the campus's expanding vision research.
May 20, 2011 |
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Researcher shows how cone snails developed poison gland from spare gut parts
(PhysOrg.com) -- Canadian Louise Page, associate professor at the University of Victoria, BC, has solved a mystery that has perplexed zoologists since early 19th century naturalists first wondered if venomous ...
May 20, 2011 |
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Biologists gain new insights into brain circuit wiring
(PhysOrg.com) -- Neurobiologists at UC San Diego have discovered new ways by which nerves are guided to grow in highly directed ways to wire the brain during embryonic development.
Medicine & Health / Neuroscience
Feb 14, 2011 |
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Sharks are colour-blind: study
Sharks may be unable to distinguish between colours, according to a lab study published on Tuesday that could benefit swimmers, surfers and sharks themselves.
Jan 18, 2011 |
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Mars volcanic deposit tells of warm and wet environment
(PhysOrg.com) -- Roughly 3.5 billion years ago, the first epoch on Mars ended. The climate on the red planet then shifted dramatically from a relatively warm, wet period to one that was arid and cold. Yet ...
Space & Earth / Space Exploration
Oct 31, 2010 |
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Cone of poison: The secret behind the cone snail's venom pump
Scientists have discovered the secret of how an amazing sea snail injects its venom after shooting a harpoon-like tooth into its prey -- or some unlucky swimmer -- at jetliner speeds. The creatures, called cone snails, use ...
Oct 27, 2010 |
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Stem cell technique offers new potential to treat blindness
(PhysOrg.com) -- University College London scientists are pioneering a stem cell treatment to replace diseased parts of the retina, which could lead to a future treatment for retinal diseases that affect around 3,000 children ...
Sep 22, 2010 |
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A turning point for young neurons
During neural development, newborn neurons extend axons toward distant targets then form connections with other cells. This process depends on the growth cone, a dynamic structure at the growing axon tip of ...
Medicine & Health / Neuroscience
Aug 03, 2010 |
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Vitamin A deficiency in New York City
In high-income countries, diseases related to vitamin deficiencies are not as frequent as in poorer settings but are nonetheless regular occurrences. In a Clinical Picture published Online First and in next week's Lancet, the ca ...
Jul 18, 2010 |
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