Search results for rod system:
The difference between eye cells is... sumo?
Medicine & Health / Neuroscience
Mar 09, 2009 |
5 / 5 (2) |
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Researchers at the Johns Hopkins University School of Medicine and Washington University School of Medicine have identified a key to eye development — a protein that regulates how the light-sensing nerve cells in the retina ...
Molecular Hula Hoop: Spinning motion of a molecular rotor detected
Jul 17, 2008 |
4.6 / 5 (5) |
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(PhysOrg.com) -- Humans have long been trying to make the dream of nanoscopic robots come true. The dream is, in fact, taking on some aspects of reality. Nanoscience has produced components for molecular-scale ...
A secret to night vision found in DNA's unconventional 'architecture'
Apr 16, 2009 |
5 / 5 (3) |
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Researchers have discovered an important element for making night vision possible in nocturnal mammals: the DNA within the photoreceptor rod cells responsible for low light vision is packaged in a very unconventional way, ...
Nanosize Rods Light Up Pancreatic Cancer Cells
Nanotechnology / Bio & Medicine
Apr 18, 2008 |
4.4 / 5 (5) |
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Quantum dots have shown promise as ultrabright contrast agents for use in a variety of cancer imaging studies. Now, a team of investigators at the Multifunctional Nanoparticles in Diagnosis and Therapy of Pancreatic Cancer ...
New spintronics effect could lead to magnetic batteries
Oct 10, 2008 |
4.6 / 5 (88) |
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(PhysOrg.com) -- Physicists have recently discovered that heating one side of a magnetized nickel-iron rod causes electrons to rearrange themselves according to their spins. This so-called "spin Seebeck effect" ...
Quantum Rod System May Safely 'Sneak' Drugs, Diagnostics into Brain
Nanotechnology / Bio & Medicine
Jul 16, 2008 |
4.5 / 5 (11) |
3
(PhysOrg.com) -- A unique nanoparticle system developed by University at Buffalo scientists takes advantage of the versatility of bioconjugated quantum rods to ferry novel diagnostic and therapeutic agents ...
Top US cybersecurity official quits
Mar 07, 2009 |
4.5 / 5 (8) |
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A top US cybersecurity official has quit, complaining in a resignation letter obtained by Wired magazine that US cyber protection efforts are being dominated by the super-secret National Security Agency (NSA).
An 'eye catching' vision discovery
Medicine & Health / Neuroscience
Jul 26, 2009 |
4.4 / 5 (11) |
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Nearly all species have some ability to detect light. At least three types of cells in the retina allow us to see images or distinguish between night and day. Now, researchers at the Johns Hopkins School of ...
When every photon counts
Apr 20, 2009 |
5 / 5 (2) |
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The eyes of nocturnal mammals contain particularly large numbers of the highly light-sensitive rods, the photoreceptor type used for night vision. This allows the detection of light levels millions of times ...
Brookhaven Lab Patents New Method for Mercury Remediation
Sep 15, 2009 |
4 / 5 (1) |
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Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have patented a new method to remove toxic mercury from soil, sediment, sludge and other industrial waste. As described in recently ...
Perfect Vision But Blind To Light
Biology /
Jun 11, 2008 |
4.7 / 5 (20) |
7
Mammals have two types of light-sensitive detectors in the retina. Known as rod and cone cells, they are both necessary to picture their environment. However, researchers at the Salk Institute for Biological ...
Scientists eye secrets of retinal regeneration
Sep 13, 2007 |
4.7 / 5 (21) |
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Peering at microscopic changes within the retina, scientists in the Department of Ophthalmology at Weill Cornell Medical College in New York City, have discovered a key mechanism driving eye health and eye disease.
HIV tamed by designer 'leash'
Medicine & Health / HIV & AIDS
Oct 29, 2009 |
5 / 5 (2) |
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Researchers have shown how an antiviral protein produced by the immune system, dubbed tetherin, tames HIV and other viruses by literally putting them on a leash, to prevent their escape from infected cells. The insights reported ...
Penn scientists discover cells reorganize shape to fit the situation
Biology /
Nov 24, 2008 |
4.4 / 5 (5) |
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(PhysOrg.com) -- Flip open any biology textbook and you're bound to see a complicated diagram of the inner workings of a cell, with its internal scaffolding, the cytoskeleton, and how it maintains a cell's ...
Teaching Nano to Swim
Oct 14, 2008 |
4.9 / 5 (10) |
2
(PhysOrg.com) -- Ayusman Sen, head of the Department of Chemistry at Penn State, makes tiny, metallic objects do something extraordinary -- he makes them swim. Sen's work is driven by catalysis, the chemical phenomenon whereby ...
