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Tag: "location" at biology news

Now, self-healing materials can mimic human skin, healing again and again

...s new supply system means minor damage to the same location can be healed repeatedly,” said Sottos, who also is a researcher at the university’s Beckman Institute. In the researchers’ original approach, self-healing materials consisted of a microencapsulated healing agent and a catalyst distributed througho...

Physicist cracks women's random but always lucky choice of X chromosome

... a plug of proteins forming on top of its specific location on the chromosome but they had little idea as to why this should happen randomly to one X chromosome’s gene and not the other. Scientists are extremely uncomfortable with this randomness and have sought a clear scientific reason as to why one X ch...

Mutating the entire genome

...le mouse genome has been sequenced – the order and location of base pairs determined in detail – scientists can identify locations in individual mice where the jumping genes have carried pieces of loxP DNA. Then, they can select a mouse with loxP on both sides of the large piece of DNA they want to mutate and...

Human genetic 'deserts' are teeming with significant life

... used to its best effect, the identity and precise location of all the protein-encoding and non protein-encoding genes in the genome will have to be determined. “The notion that mammalian transcriptomes [the set of all messenger RNA molecules produced in a population of cells] are made of a swarming mass of ...

New research shows sharks use their noses and bodies to locate smells

...e prey; they also need their skin – specifically a location called the lateral line. The lateral line is an organ used by all fish to detect, with exquisite sensitivity, movement and vibration in the surrounding water. According to the research team, this is similar to how humans can sense air flow with the s...

NASA-funded robotic sub finds bottom of world's deepest sinkhole

...hat the Carnegie Mellon team used to determine the location of the vehicle as it explored the cenote. It also used the sensors to create maps of the sinkhole’s interior via a technique called simultaneous localization and mapping, or SLAM. Prior to the DEPTHX field experiment, SLAM had been used for navigatin...

How to look at dinosaur tracks

...rs of concentric circles extending from the former location of the true track. These “undertracks?reveal the squishing and displacement of sand when the heavy dinosaur took a step. “The tracks and undertracks of large theropods found in the [Middle Jurassic] Entrada Sandstone at the studied locality come i...

Technique monitors thousands of molecules simultaneously

...just a matter of structure, but rather a matter of location and scale ?a logistical problem." He offered the Great Wall of China as an example of a classic logistics problem ?the structure itself was simple, but getting the tools and manpower necessary for the task to the remote regions it was built in on t...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...nsity persisted when the scientists controlled for location and environmental conditions. “The ecology of islands is particularly important because, while the world’s more than 100,000 islands constitute only 7 percent of the global land surface, they contain many of the earth’s species with numerous speci...

Why do oysters choose to live where they could be eaten?

...son of being captured versus landing on a suitable location to grow was conducted, it was found that more than 95 percent of an oyster reef is a safe zone for larvae. Given this low cannibalism risk at settlement, future payoffs appear to have driven the evolution of a gregarious settlement cue that promotes ...

New technique will produce a better chromosome map

...fruit fly polytene chromosomes, with the shape and location of these structures only vaguely delineated. This ...hms can accurately calculate the number, shape and location of the chromosome bands. "Two researchers might see the same image differently," said graduate re...

World's leading scientists announce creation of 'Encyclopedia of Life'

...on and, when available, photographs, video, sound, location maps, and other multimedia information on each species. Built on the scientific integrity of thousands of experts around the globe, the Encyclopedia will be a moderated wiki-style environment, freely available to all users everywhere. "The Encycl...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...hey follow unpredictable paths as they travel from location to location along the west coast of North America. Transients, which also distinguish themselves by feeding prim...

Scientists seek useful traits in wild cottons

...nant, co-dominant or recessive and finding its DNA location could help breeders develop upland cottons that require less lint cleaning ?producing cleaner fiber with less ginning costs, Gannaway said. Scientists at the Crops Genetic Research Facility at Lubbock have been conducting their cotton resear...

Genetic fingerprints identify brain tumors' origins

...provided genetic fingerprints or bar codes for the location of PAs, as well as for another glial cell tumor called an ependymoma. In addition, scientists also detected these distinct patterns of expression in normal glia and stem cells from these brain locations, suggesting that genetic fingerprints can be us...

Male-killing bacteria makes female butterflies more promiscuous

...st Asian populations. The islands provide an ideal location because every island is differently affected by the male-killling bacteria so that each has a different ratio of males to females. The researchers assessed the natural sex ratio in 20 populations and combined this data with female mating frequency...

Tracking sperm whales and jumbo squid

...tral Gulf of California is a uniquely advantageous location to study the behavioral ecology of sperm whales and their squid prey," the authors wrote. "Sperm whales are abundant year-round and appear to feed heavily on jumbo squid, a species that is easily captured and amenable to tagging. To our knowledge, th...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...total. "Iowa State University, with its central location in the agricultural belt and rich traditions of research and service, is uniquely positioned to set the standard for biorenewables research, education and technology transfer," Geoffroy said. "Contributing to the development of the bioeconomy is dire...

Africa's first large-scale HIV vaccine study launches

...ool of Medicine. "South Africa is an excellent location for this trial due to the high levels of infection coupled with the good clinical infrastructure, including internationally recognized immunology laboratories, a well-established national vaccine initiative and experience in running clinical trials,"...

Wired for sound: How the brain senses visual illusions

...ct flashes of light. Investigating the timing and location of the brain processes that underlie this illusory effect ?the illusion of seeing two flashes in the presence of two auditory signals, when only one flash actually occurs ?can reveal how information from different senses are integrated in the brain. ...

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