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Tag: "grid" at biology news

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

... the University of Hawaii will use bioinformatics, grid computing and networking infrastructure, as well a...iatives at UC San Diego. "We will also construct a grid infrastructure to support avian flu research ?an infrastructure that could one day handle research o...

Global map shows new patterns of extinction risk

...all mammal, bird and amphibian species within each grid square were counted, using a variety of pre-existi...lobal mapping has divided the planet up into small grid squares to obtain a really detailed picture of biodiversity. By looking at the numbers of endangered...

Teenager moves video icons just by imagination

... a patient at St. Louis Children's Hospital, had a grid atop his brain to record brain surface signals, a brain-machine interface technique that uses electrocorticographic (ECoG) activity - data taken invasively right from the brain surface. It is an alternative to a frequently used technique to study hum...

Taking 'chips' to the next level of gene hunting

...d-find puzzle, where words are hidden in a jumbled grid of letters, the TIP-chip highlights exactly where along the DNA sequence these elements have landed. By chopping up the DNA, amplifying the DNA next to the transposable elements and then applying these amplified copies to the TIP chip, the researcher...

Slow brain waves play key role in coordinating complex activity

...ved a portion of each patient's skull and placed a grid of 64 electrodes on the surface of the brain's fro...n the brain and are building a more closely spaced grid of electrodes that can measure finer detail on the brain's surface. They also plan to combine brain ...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

... animals and the scent trails. The openings in the grid were too small for the star appendages to squeeze ...th 85 percent and 100 percent accuracy. When the grid was replaced with a screen with openings too small for the air bubbles to pass through, however, the...

Researchers find that bumblebees' flower choice matters

... monkey flower. She has set out the garden in a grid of numbered holes. In this way, she can rotate the kinds of potted plants that are dropped in each morning and the density of each species in the plot. On any given day, Flanagan will trim the plants so that each has the same number of flowers on it....

The brain, traffic and nano-circuits -- e-Science takes on major challenges

... major boost from the application of e-Science and grid computing. The challenges are, understanding the b...ment for Transport. It will develop e-Science and grid technologies to enable data from a network of mobile sensors to be gathered and interpreted. The e-...

BGSU biologist trying to crack microscopic code

...arsen notes. The outer membrane is stabilized by a grid of sugar polymers, and penicillin wrecks the grid, making the cells susceptible to a body's natural defenses. Disrupting energy flow--knocking out the TonB and Tol systems--would provide another powerful weapon against disease-causing bacteria, he ...

UCLA scientists strengthen case for life more than 3.8 billion years ago

... a big area--with a clipboard, maps, a compass and grid paper. We mapped it like an archeologist would map it," Manning said. "It became clear that these rocks that hosted life line up into two beautiful, coherent layers. They are not randomly distributed, as you might expect if the alternative interpreta...

UCR researchers design chip that can improve citrus varieties

... different pieces of citrus DNA are deposited on a grid or microarray using methods similar to those used to produce computer chips. The glass wafer is encased in a plastic container somewhat smaller than the size of a credit card. To use the chip, researchers purify total RNA (which reflects the genes...

Chemical signaling helps regulate sensory map formation in the brain

...nnection that allows positional information from a grid of sensors, in this case the light-sensitive cells in the retina, to be smoothly and systematically transferred to their target, the structures in the brain that interpret information from the eyes. "Without an orderly and faithful connection," sai...

'Genetic network' guards against lethal DNA damage

...unter. The scanner in this case is a microarray: a grid of thousands of spots on a piece of glass that holds a unique "sensor" strand of DNA that matches one of the barcodes. Machines then read the microarray to identify which of the sensors found matching barcodes that identified specific yeast cells wit...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...nels on neurons. The scientists created an imaging grid across the glomeruli and measured the ratio of fluorescence versus nonfluorescence over time. Galán then used advanced mathematical techniques to process the images and create a matrix of the extent (or amplitude) of neuronal excitation and inhibiti...

Grid bridges 4,800 miles for molecular repositories

... While there have been attempts to launch similar grid networks in the United States, none are currently active, Straatsma said. The PNNL node on the BioSimGrid coincided with the lighting of a new high-speed, high-capacity fiber optic connection between PNNL's campus in Richland, Wash., and Seattle. Th...

DNA self-assembly used to mass-produce patterned nanostructures

...16 unique puzzle pieces that fit together as a 4x4 grid that formed a puzzle spelling the letter "D." Because each piece would only match up with its predetermined neighbors, the scientists could mix together a trillion of each type of tile in one batch to generate a trillion 4x4 grids. Coming up with th...

Frog peptides block HIV in lab study

... - regions that during waking hours are a bustling grid of neural dialogue - apparently lose their ability to communicate effectively, causing consciousness to fade. Writing today (Sept. 30) in the journal Science, a team of researchers led by University of Wisconsin-Madison professor of psychiatry Giuli...

Deep sleep short-circuits brain's grid of connectivity

... - regions that during waking hours are a bustling grid of neural dialogue - apparently lose their ability to communicate effectively, causing consciousness to fade. Writing today (Sept. 30) in the journal Science, a team of researchers led by University of Wisconsin-Madison professor of psychiatry Giuli...

Six previously blind patients detect light, motion, identify objects with retinal prostheses

...to replacing those cells with its device, a 4-by-4 grid of platinum electrodes embedded in silicone rubber. The electrodes are wirelessly stimulated through an external controller hooked up to a head-mounted video camera. This study is being conducted under a Food and Drug Administration Investigational ...

Researchers seek to discover what really happens when a virus enters the body

..., Bell's lab has developed "a method to remove the grid created by assembling the montage of sub-images. Our method ?based on a model we developed that reflects the physics of fluorescent microscopy ?also estimates and corrects the effect of the microscope's uneven illumination and the markers' spectral o...

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