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Tag: "analyze" at biology news

Lack of key enzyme associated with development of rare tumor

...ing the study, the researchers used gene arrays to analyze the DNA of patients with a rare tumor of the adren...tics. The researchers also used the technology to analyze samples of the patients' tumors. The researchers found four patients who had mutant copies of a gen...

Corals switch skeleton material as seawater changes

... the coral skeletons and used X-ray diffraction to analyze their mineral composition. He was surprised to find that corals grown in the artificial seawater with a magnesium-to-calcium ratio less than 2-to-1 began producing a large portion of their skeleton with the calcite mineral, while those grown in unmod...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...ars ago. By developing new statistical methods to analyze incomplete DNA sequences from thirteen strategically selected plant species, the researchers uncovered a previously hidden "paleopolyploidy" event, an ancient whole-genome duplication that preceded the appearance of the ancestral flowering plant. Th...

Scientists describe new African monkey genus ?first in 83 years

... study the specimen's physical characteristics and analyze tissue samples on a molecular level. Their research has concluded that Kipunji (its common name) belongs to an entirely new genus. Kipunji have light-to-medium grayish brown fur, with off-white fur on the belly and the end of their long, mainly cur...

Large-scale genomics project will hunt genes behind common childhood diseases

...ess 264 patient samples per day and simultaneously analyze over 550,000 genetic variants for each sample. Dev...gy entirely at its disposal." The Center plans to analyze blood samples from over 100,000 children over the next three years. Patients from the Children's Hos...

Surprising symbiosis: Glassy-winged sharpshooter eats with friends

...metagenomics, some scientists suggest you can just analyze the whole system as one unit--a so-called 'black-box' approach--without knowing which piece of DNA came from which organism," Eisen says. "But this black-box ecology just does not work well. To really understand the system, you've got to assign the d...

New strategy developed to combat West Nile Virus

...." Shaman and Day hope to expand their studies to analyze different regions of the country and create models similar to that of southern Florida, where certain weather patterns set off the chain of events that leads to amplification. ...

New study calculates millions of years saved in lives of AIDS patients

...ghly active antiretroviral therapy or HAART). To analyze the impact of HAART on patient survival, the investigators used a computer simulation model to examine national surveillance and efficacy data for newly diagnosed adult AIDS patients under care in the United States from 1989 to 2003. They divided tho...

Gut reaction: Researchers define the colon's genome

... Research (TIGR) and their colleagues describe and analyze the colon microbiome, which includes more than 60,000 genes--twice as many as found in the human genome. Some of these microbial genes code for enzymes that humans need to digest food, suggesting that bacteria in the colon co-evolved with their human...

Where we change our mind

... decision making. In particular, their aim was to analyze subjects' navigation through a virtual maze, to explore how different cortical regions function in solving "partially observable decision-making problems." "In navigation tasks, such as that investigated here, an individual must constantly maintain ...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...hemical features in a region of interest. ''We can analyze a few percent of one component in the presence of ...ehavior. Moreover, dyes do not allow scientists to analyze membrane compositions, because scientists see only what they've labeled. ''If you want to look at l...

Finding the right mix: A biomaterial blend library

...t Rutgers University have developed new methods to analyze the interactions between cells and biomaterials. Their work could lead to inexpensive techniques for building better biomaterials. Polymers derived from the amino acid tyrosine make up a broad class of degradable biomaterials under investigation. ...

Fire ant-attacking fly spreading rapidly in Texas

...place traps around fire ant mounds along roads and analyze the flies they catch. They have found the introduced phorid flies attacking imported fire ants in more than 12 counties and 3.5 million acres in Central Texas and seven counties and 1.5 million acres in the Coastal Bend region of Texas. Phorids g...

Sandia research to focus on early detection of harmful algal blooms

...liable, cost-effective prototype to simultaneously analyze multiple HAB toxins in phytoplankton and/or shellfish in the field. Lane and his colleagues will aim to optimize the micro-separations process for a sub-set of relevant toxins, and establish the laboratory-based protocols for sample preparation. Th...

MIT finds most complex protein knot ever seen

...eb server, soon to be publicly available, that can analyze the structure of any protein to see if it has knots, which he believes could be helpful to researchers in structural genomics. (Structural genomics aims to determine the structure of all proteins produced by a given organism.) Since their initial s...

Far more than a meteor killed dinos

...d, says Keller. "In all these localities we can analyze the marine microfossils in the sediments directly above and below the Chicxulub impact layer and cannot find any significant biotic effect," said Keller. "We cannot attribute any specific extinctions to this impact." No one has ever published this cr...

'Fruit fly dating game' provides clues to our reproductive prowess

...d, says Keller. "In all these localities we can analyze the marine microfossils in the sediments directly above and below the Chicxulub impact layer and cannot find any significant biotic effect," said Keller. "We cannot attribute any specific extinctions to this impact." No one has ever published this cr...

Affymetrix 500K array used to identify memory gene

... TGen used Affymetrix Human Mapping 500K Arrays to analyze 500,000 DNA markers simultaneously, providing a genetic blueprint for the memory-study participants. The researchers discovered the Kibra gene by comparing the genetic blueprints of people with good memory vs. poor memory and looking for the genetic ...

Gene chip technology shows potential for identifying life-threatening blood infection

...chers used microarrays, also called gene chips, to analyze patterns of gene expression in the mice. The same technology is already used by doctors to diagnose breast cancer and predict a patient's response to various chemotherapy drugs, but this is the first time researchers have attempted to use gene chips ...

Critical hearing gene helps send auditory messages to brain

...implants," the researchers said. Cochlear implants analyze sound messages and convert them into electrical signals, bypassing the cochlea to directly stimulate the auditory nerves. "That's good news," Petit said, since otoferlin-linked deafness is an auditory neuropathy, a class of hearing impairment for w...

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