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Tag: "matched" at biology news

Math that powers spam filters used to understand how brain learns to move our muscles

...rner’s speed and pattern in adapting its movements matched the experimental results of the monkeys almost perfectly. “We found that this Bayesian model can explain almost all of the phenomena we observe in regard to learning motor movements,” says Shadmehr. Beyond possible use in helping stroke patients,...

Research shows cord blood comparable to matched bone marrow

...e. This is the first study that directly compares matched bone marrow, which is currently considered the preferred graft, with matched and mismatched umbilical cord blood. There is considerable controversy in the medical community abou...

Experts predict Tamiflu could halve the pandemic influenza death toll versus no intervention

...s would be dependent upon how well the vaccine was matched to the virus.1 “The World Health Organisation p... especially as it is unlikely that a vaccine fully matched to the strain will be available in the initial wave of a pandemic.” Prophylaxis with antiviral...

Putting feelings into words produces therapeutic effects in the brain

...Sally,” and chose the gender-appropriate name that matched the face. Lieberman and his co-authors — UCLA assistant professor of psychology Naomi Eisenberger, former UCLA psychology undergraduate Molly Crockett, former UCLA psychology research assistant Sabrina Tom, UCLA psychology graduate student Jennif...

Ants show us how to make super-highways

...nts’ trails to see how well different sizes of ant matched different sizes of pot hole. Indeed, they fit beautifully", explained Franks. Overall, this behaviour results in an increase in the average speed of prey-laden traffic. Moreover, calculations suggest that under a range of realistic scenarios, plu...

Hawaiian treasure, macadamia nuts good for the heart

...n or lose weight during the study. Both diets were matched for total fat, containing 33 percent calories from total fat. The Heart Healthy diet with macadamia nuts had 7 percent saturated fat, 18 percent monounsaturated fat and 5 percent polyunsaturated fat. The standard American diet had 13 percent saturate...

Scientists identify pancreatic cancer stem cells

...sive pancreatic cancer subtype are not identically matched to those found in aggressive breast cancer, the researchers also discovered. The difference is in one marker, CD24, which is negative in breast cancer and positive in pancreatic cancer, according to Simeone. "These studies suggest that several st...

Hybrid molecule causes cancer cells to self-destruct

...rticle. "But we found that when the right sugar is matched with the right chemical partner, it can deliver a powerful double-whammy against cancer cells." Sampathkumar and his colleagues built upon 20-year-old findings that a short-chain fatty acid called butyrate can slow the spread of cancer cells. In ...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...es found in chicken collagen alpha I, while others matched newt and frog. For extinct species, the real go... the time of T. rex. None of his dinosaur peptides matched the theoretical set, which is not surprising. "If you’re only finding seven sequences in T. rex, you...

Study shows hope for early diagnosis of Alzheimer's

...rate was 82 to 85 percent using the EEGs (e.g., it matched evaluations conducted at Penn 82 to 85 percent of the time). Alzheimer’s disease cannot be confirmed until a patient has died and his or her brain has been examined. Gold standard tests administered at world-class research facilities, such as Penn, h...

Surgeons develop simpler way to cure atrial fibrillation

...x-maze IV is unique because the surgeons carefully matched the age, sex and cardiac conditions of a group of patients who underwent Cox-maze III in the past with patients undergoing Cox-maze IV. "This is the first documentation of the effectiveness of the ablation devices compared to the incisions of the Cox...

Global 'sunscreen' has likely thinned, report NASA scientists

... decreased. The dimming in the simulations closely matched actual measurements of sunlight declines recorded from the 1960s to 1990. Further simulations using one of the Goddard climate models revealed that aerosols blocking sunlight or trapping some of the sun's heat high in the atmosphere were the major...

Triplex assay used to assay duplex genomic DNA

...develop a flow injection based instrument which is matched to our chemistry," continued Daksis. Their Genome Flow® instrument, which employs hardware from FIALab Instruments of Bellevue, Washington, has one moving part, the syringe pump. It allows samples to be automatically quantitated, a necessary step in ...

Like salty food? Chances are you had low blood sodium when you were born

... during their first month of life (n=23) or were a matched control having received no diuretic treatment (n=18). Of the total, 21 were Arabs (14 boys, 7 girls) and 20 were Jews (11 boys, 9 girls), ranging between 8-15 years of age. The researchers analyzed each child's sodium appetite according to neonata...

Lower carbon dioxide emissions from coal-fueled power plants possible with technology development

...hese releases.? The funds from TXU Power will be matched by funds from a dozen or more other power companies and process suppliers who will participate in the TXU Carbon Management Program. With these funds, Rochelle, holder of the Carol and Henry Groppe Professorship in Chemical Engineering, will optimize...

In presence of fragrant cleaning products, air purifiers that emit ozone can dirty the air

...also developed a mathematical model that precisely matched their experimental observations. This model can be used to predict whether a given air purifier will make the air dirtier in a given indoor environment. Scientific data on indoor air purifiers will be important as officials begin the process of re...

Genes and genius: Researchers confirm association between gene and intelligence

...ls, took the Wechsler test, and those results were matched to differences in individuals' DNA. By comparing individual differences embedded in DNA, the team zeroed in on CHRM2, the neuronal receptor gene on chromosome 7. The CHRM2 gene activates a multitude of signaling pathways in the brain involved in ...

Early-stage immune system control of HIV may depend on inherited factors

... individual, these are the factors that need to be matched as closely as possible in organ transplants, with perfect matches only possible between identical twins. Some studies have found that HIV patients with particular versions of HLA may be better able to control viral levels, but the diversity of HLA m...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...ex with the addition site available for entry of a matched NTP. Those crystals uncovered a second NTP-binding...hile all NTPs can bind the entry site, only an NTP matched for base-pairing with the DNA template binds the addition site for attachment to the growing RNA str...

New technique boosts size of proteins that can be analyzed

...e pieces of the protein, and masses can usually be matched to several combinations of pieces and modifications. Therefore, the method rarely locates all modifications in newly isolated proteins. "Each approach has different strengths and weaknesses," said Mi Jin, a postdoctoral associate in chemistry and c...

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