Tag: "lights" at biology news

Sea change: Skeletons of ancient corals different from today's

...waters." The corals were grown under special lights called "PowerCompacts" which simulated true daylight by emitting a wavelength commensurate to sunrise and sunset in the morning and evening, as well as normal sunlight during the rest of the day. Ries fed the growing corals with plankton particles, a...

Study shows stem cells can preserve vision

...s and flashed a series of increasingly lower level lights at both groups over a period of time. Mice are photophobic and stop their normal activity when they detect light. The researchers took advantage of this natural response and found that the mice with the transplanted tissue continued to respond to the...

Improved molecular switch could serve as sensor, medical tool

...ng to create a molecular switch that fluorescently lights up only in the presence of certain cellular activity. "We've proven that we can make effective molecular switches," he said. "Now, we want to use this idea to create more interesting and more useful devices." Gurkan Guntas, a doctoral student i...

How the brain is wired for faces

...of the brain, called the fusiform face area (FFA), lights up with activity when we see a face--and even that the FFA is necessary for us to recognize faces--there is controversy over what kind of processing the area is doing. Now, Galit Yovel and Nancy Kanwisher have tackled two central questions with one s...

Ocean colour satellites guide research ship through South Pacific's watery desert

...entration exceeding one mg3, sometimes 10 mg3. The lights of the vessel attracted a large number of squid by night the largest exceeding 1.43 metres and a large variety of birds, including petrels, puffins, and albatrosses, and even a pelican. In this region the phytoplankton population proved very patch...

Map of human genetic variation across populations may promise improved disease treatments

...ouse is part of a development that is three street lights south of the movie theater. Finding the street lights and the movie theater will be important for reaching your destination. Similarly, because genetic ma...

Brain Awareness Week teaches kids how their brains work

...with electricity and basking in a world of colored lights and eerie sounds. An NIAAA neuroscientist will explain why alcohol interferes with sensory perception, movement, balance, and memory, and demonstrate which brain circuits are involved in alcohol dependence and alcoholism. Then, students will visit "R...

Seekers of what is lost

...senger pigeons suspended on thin brass rods. Stage lights make the bird casts glow but also cast their shadows and those of the bars on surrounding walls. (This is the only off-campus event. Afterward, carpool to campus or take TRAX departing Temple Square at 6:28 p.m. and arriving at South Campus station a...

From gene discovery to preventing eye disease in retinitis pigmentosa

...t to varying extents, is exposure to light bright lights have been previously speculated to accelerate certain forms of RP. Now, investigators from the University of Pennsylvania and Cornell University provide evidence for retinal injury caused by moderate light exposure in dogs with a mutation in the rhod...

Salk polio vaccine celebrates 50th anniversary

...of hundreds of journalists and the glare of camera lights at the University of Michigan, it was announced that the vaccine worked -- polio now could be prevented. A huge outpouring of relief and joy greeted the news, and Dr. Salk became a national hero overnight. Significance of the Anniversary Many othe...

Newly discovered genetic disease sheds light on body's water balance

...responds to cAMP. Luciferase is the substance that lights up in fireflies. Feldman showed that wild-type cells contain low levels of light from luciferase -- and thus low levels of cAMP. In Feldman's experiments, cells with the R137C mutation proved to have four times as much cAMP as wild-type cells; those ...

Deep-sea jelly uses glowing red lures to catch fish

... use bioluminescence for self defense tend to have lights distributed all around their body, which flash bri...zed and under tight control, suggesting that their lights had an entirely different function. Continuing his microscope work, Haddock found more specific clu...

Taking a flying jump

...ion with non-directional stimuli such as switching lights on and off. Card's results imply that there could be a simple neural solution that "answers" questions within what is essentially a reflex arc....

California Institute researchers unveil computer graphics innovations at SIGGRAPH

...ed light clouds a compact representation of local lights in the model. "Our results demonstrate real-time rendering of scenes with moving lights, dynamic cameras, glossy materials and global illumination," explains Jensen. "The system handles indirect illumination efficiently for models with more than 100,...

'Smart' nanoprobes light up disease

...nostructure that is dark in its original state but lights up very brightly in the presence of enzymatic activity associated with a particular disease process," said West. "Other groups have used targeted nanostructures including quantum dots for molecular imaging, but they have never been able to adequately...

Gambling monkeys give insight into neural machinery of risk

... chances to choose to look at either of two target lights on a screen. Looking at the "safe" target light yi...task more interesting by changing the color of the lights on each trial, the monkeys didn't care anything about it." In fact, when the researchers made the av...

New dye could offer early test for Alzheimer's

...ls in the near future. "What we have is a dye that lights up when it binds to amyloids that form in the brains of people with Alzheimer's. It's a completely new transduction scheme-a way of translating a physical or chemical event that's invisible to the naked eye, into a recognizable signal. Further wavele...

Bumblebee see, bumblebee do

... arena for 10 minutes with no bees in it. Then the lights were turned off and, behind the scenes, the feeding bees and their flowers were removed. A new set of three green and three orange artificial flowers was set up in the feeding arena, but the flowers had no food and the location of the particular colo...

Deep-sea exploration beneath Katrina's wake

...t. Augustine, and others aboard are using powerful lights mounted on the front of the submersible to illuminate animals whose fluorescence is then captured on the sub's video camera using a filter that blocks non-fluorescent light reflected back. Last year, using this technique, the group discovered the wo...

Say what? Bacterial conversation stoppers

...irst produced then devoured enough AI-2 to dim the lights of the marine bacteria, essentially fooling the thriving oceanic gang into thinking its members were few, thereby terminating its quorum-sensing behaviors. In a more realistic encounter, Xavier mixed E. coli with V. cholerae, the cholera-causing...

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(Date:7/30/2014)... protection from HIV infection could be as simple as ... , University of Washington bioengineers have discovered a ... protects women from contracting HIV. Their method spins the ... contact with moisture, releasing higher doses of the drug ... or creams. , "This could offer women a potentially ...
(Date:7/30/2014)... Long before humans figured out how to create colors, ... bright butterfly wings of many different hues, for example. ... a more environmentally friendly way to make colored plastics. ... and architectures of materials rather than dyes, to ... Letters . , N. Asger Mortensen, Anders Kristensen and ...
(Date:7/30/2014)... Steven Chown has been awarded the Scientific Committee ... in Antarctic Research. , SCAR, an inter-disciplinary international ... international scientific research in the Antarctic region, and ... the Earth system. The organisation also provides scientific ... responsible for governing the region. , The medal ...
Breaking Biology News(10 mins):Dissolvable fabric loaded with medicine might offer faster protection against HIV 2Dissolvable fabric loaded with medicine might offer faster protection against HIV 3
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