When every photon counts
... and its visual challenges had a unique impact on rod
nuclear organisation: The distributions of the ... mammals. With this unique arrangement, the rod
nuclei of nocturnal mammals act as micro-lenses ... outer segments of the rods. Hence, this change in rod
nuclear organisation improves vision at nocturnal ...
Scientists eye secrets of retinal regeneration
... just how light-sensing discs in the retina's rod
cells regenerate themselves.
The retina uses ... riddle."
According to the researchers, the rod
cell's outer segment is constantly pushing up and ... until it joins the hundreds of other discs on the rod
cell's outer segment," Dr. Sung says. "All of ...
Fish guts explain marine carbon cycle mystery
... at much shallower depths (e.g. 500 to 1,000 metres).
Lead author Dr rod
Wilson of the University of Exeter (UK) said: "Our most conservative ... directly stimulates carbonate production by the gut specifically.
Wilson continues: "We have really only just scratched the surface of ...
Progression of retinal disease linked to cell starvation
... discs, resembling a stack of cookies. A cone stack is half the height of a rod
stack. Stacks emanating from both types of cells get clustered together, ... an interesting pattern. Cone death always began after the major phase of rod
Punzo analyzed gene expression before and after this point in ...
'Electrospray' droplet research yields surprising, practical results
In the experiments, an electric voltage was applied to a small metal rod
positioned about an inch from a puddle of liquid. The liquid was pulled toward the tip of the rod
and took on a conical appearance. Strands of liquid, which subsequently ...
Flexible neck in cell-receptor DC-SIGN targets more pathogens
... and made possible by a flexible linker in the neck, the researchers report.
"The protein neck region acts as a stiff, but flexible, rod
that projects the molecule's binding sites away from the cell surface," Leckband said. "A rigid presentation of the binding sites at the end of the ...
Identification of a key molecular pathway required for brain neural circuit formation
... all of the molecules required to guide axons correctly during spinal cord healing, we would probably know how to heal spinal cord injuries," says Dr. rod
McInnes, Scientific Director of the Canadian Institutes of Health Research Institute of Genetics. "This is beautiful research that adds another major ...
Engineers develop method to disperse chemically modified graphene in organic solvents
... graphene sheets in a wide variety of organic solvents has been developed by a University of Texas at Austin engineering team led by Professor rod
Ruoff, opening the door to use graphene in a host of important materials and applications such as conductive films, polymer composites, ...
Fifth annual Templeton-Cambridge fellowships awarded to 10 noted journalists
... American Prospect, Fox News, and BBC Radio.
The TempletonCambridge Journalism fellows named today are:
Edwin Cartlidge, Freelance Journalist
Dreher, Editorial Columnist, Dallas Morning News
Joel Garreau, Reporter and Editor, Washington Post
Lauren Green, Chief Religion Correspondent, Fox ...
Tall tale of giant stingray circles the globe
... expedition, is truly the world's largest freshwater fish, he said. The fish, caught by volunteer angler Ian Welch from a small boat using a rod
and reel, will be featured in an upcoming documentary airing on the National Geographic Channel.
"Surprisingly, we caught the stingray again four ...
Venter, Somerville and Church highlight DOE/JGI genomics of energy and environment meeting
Steve Turner, Pacific Biosystems, Applying Single Molecule Real Time DNA Sequencing
John Willis, Duke University, Mimulus guttatus
Wing, University of Arizona, To REFSEQ or RESEQ Oryza That is the Question
Registration is still open and can be accessed online: ...
Gene's past could improve the future of rice
... to feed the human population, and it needs to be done on less land and with less water. This could be the way to do that."
Jackson worked with rod
A. Wing of the University of Arizona and Mingsheng Chen of the Chinese Academy of Sciences in Beijing, and they were the corresponding authors for ...
Our microbes, ourselves
... which provides a characteristic fingerprint for microbial identification. The analysis was conducted with the assistance of University of Arizona's rod
Wing at the Bio5 Institute, using a novel sequencing technique known as 454-pyrosequencing, which allows a significantly larger number and greater ...
Fishdunnit! Mystery solved
... Corresponding authors Drs. Frank Millero and Martin Grosell at the University of Miami's Rosenstiel School of Marine and Atmospheric Science and Dr. rod
Wilson of the University of Exeter note that given current concerns about the acidification of our seas through global CO2 emissions, it is more ...
Bright lights, not-so-big pupils
... Curious about how these cells bear on behavior, the researchers examined pupil constriction in mice that had been genetically altered to be free of rod
and cone function in order to focus on activity resulting from only melanopsin-containing cells. Flashing light at mice sitting in the dark, the team ...
1,000 tags reveal mysteries of giant bluefin tuna
... in Pacific Grove, California, which is operated jointly by Stanford University and the Monterey Bay Aquarium.
In the field, fish are caught using rod
and reel and brought aboard the fishing vessel, where tags are externally attached, or surgically implanted inside the tuna. Each tag, ranging in ...
Study rules out inbreeding as cause of amphibian deformities
... in newts, a related amphibian, but on par and with frequencies seen in many frog species, said assistant professor of forestry and natural resources rod
"This is really the first study to test - and disprove - the hypothesis that inbreeding is responsible for malformations in ...
Gene therapy restores vision to mice with retinal degeneration
... The MGH team used the standard viral vector adeno-associated virus to deliver the gene encoding melanopsin throughout the retinas of mice whose rod
and cone photoreceptors had degenerated from lack of a crucial protein.
Four weeks after delivery of the gene, melanopsin normally produced in 1 ...
Atomic-resolution views suggest function of enzyme that regulates light-detecting signals in eye
This particular form of the enzyme comes from the cone photoreceptors of the retina and has not been well-researched, in contrast to its rod
form. Rods are involved in night vision and motion sensation; the cones are responsible for color sensitivity, visual acuity, daylight vision, and ...
NYU, American Museum of Natural History receive $1.6 million NSF grant
... expressed by a genome.
Richard Bonneau and Michael Purugganan, biologists from NYU's Center for Genomics and Systems Biology, along with rod
DeSalle, curator from the Sackler Institute for Comparative Genomics at AMNH, will model species Arabidopsis thaliana (the most widely studied plant ...
Robot vehicle surveys deep sea off Pacific Northwest
... can track the vehicles' direction and speed with incredible precision.
"Sentry is a true robot, functioning on its own in the deep water," said rod
Catanach, a WHOI engineer who works with Sentry. "The vehicle is completely on its own from the time it is unplugged on the deck and cut loose in the ...
Wisconsin researchers describe how digits grow
... in specific digit identities.
"We thought that bone morphogenic protein (BMP) signals from interdigit cells were sent to the digit primordium, a rod
of cartilage, in the neighboring digit ray, breaking up the cartilage into phalanges," Fallon says.
Sean Hasso, Fallon's current graduate ...
DOE JGI releases soybean genome assembly to enable worldwide bioenergy research efforts
... William Beavis of the National Center for Genome Resources (NCGR) in Santa Fe, New Mexico, and Iowa State, Gregory May (NCGR), Will Nelson and rod
Wing of the University of Arizona, with Randy Shoemaker, anchored the map and conducted quality control.
The team devoted to genetic mapping and ...
NOAA proposes federal regulations to protect black abalone
... team reported major declines in the population of black abalone, especially in the areas around the Channel Islands off Southern California,
McInnis, Southwest Regional Administrator for NOAAs National Marine Fisheries Service. These proposed regulations seek federal protection for black ...
Media highlights in the November issues of Biophysical Journal
... a detailed atomic model of the Kv1.2 voltage-gated potassium channel in an explicit membrane using the crystallographic x-ray structure determined by rod
MacKinnon (Rockefeller University) and his collaborators in 2005.
A long-term endeavor of biophysical research is to advance our understanding ...
A tiny pinch from a 'z-ring' helps bacteria cells divide
... by dividing in two. When it is time for this to occur, the Z-ring receives a signal and begins to contract. This pinching continues until the rod
breaks apart to form two daughter cells.
Suns team gathered data from microbiology labs that are studying cell division and then translated these ...
Ragweed research is nothing to sneeze at
... away from the plants, the researchers set up an 18-foot-tall pole equipped with six pollen samplers mounted at different heights. Each sampler spun a rod
coated with sticky silicone to capture pollen clumps moving through the air. The students have been able to count and study the pollen grains by ...
Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration
... University of Michigan Kellogg Eye Center to tag rod
precursor cells and prepare them for ... the cells survive; correctly develop into rod
photoreceptors; integrate and connect in ... an important study describing the "birth" of rod
cells.* They were able to make this process ...
Study provides first look at the 'birth' of a retina cell
... team reports that NRL is the earliest marker of rod
precursors, or cells that are fated to become rods. They achieved this unique and early view of rod
development by creating a mouse model using an ... a handle for investigating the precise process of rod
Rods, along with cones, are ...
Surprise finding for stretched DNA
... is stretched. The model consists of an elastic rod
that is wrapped around its outer surface by a ... to DNA's sugar-phosphate backbone. The elastic rod
is constructed from a material that conserves ...
"As this system is stretched, the elastic rod
decreases in diameter," said Bustamante. "This ...
Nanotechnology meets biology and DNA finds its groove
... a variety of settings."
In addition to Schwartz and de Pablo, authors of the PNAS study include Kyubong Jo, Dalia M. Dhingra, Michael D. Grahm, rod
Runnheim and Dan Forrest, all of UW-Madison, and Theo Odijk of the Delft University of Technology.
The work underpinning the new DNA sampling ...
Opening windows may be the best way of preventing transmission of airborne infection
... double that of mechanically ventilated negative-pressure rooms and 18 times that of rooms with windows and doors closed.
The researchers, led by rod
Escombe from Imperial College London, compared the airflow in 70 naturally ventilated clinical rooms such as respiratory isolation rooms, TB wards, ...
Plastic surgeons countdown first full facial transplantation
... facial transplantation can improve the quality of life for patients, however, facial transplantation will not replace traditional techniques," said rod
Rohrich, MD, editor of PRS. "This is an exciting time in plastic surgery, but it is important to remember that, at least in the near future, facial ...
'Prosthetic' retinal cells let blind mice see light
... channelrhodopsins, such as ChR2, in surviving retinal neurons may be another potential strategy for the treatment of complete blindness caused by rod
and cone degeneration," they wrote. ...
UCLA researchers identify key enzyme linked to childhood blindness
... It is caused by mutations in several different genes including RPE65. An important characteristic of this disease is that the light sensitive rod
and cone cells remain intact in the retinas of Leber patients for a long time.
"This suggests that replacement of RPE65 by gene therapy should ...
UQ researcher tracking key to healing the brain
... the body, they can theoretically divide without limit to replenish cells lost due to everyday wear and tear, or following injury or disease.
Rietze, head of the Queensland Brain Institute's (QBI) Laboratory for Neural Stem Cell Biology, is hoping those stem cells may soon unlock the ...