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Tag: "back" at biology news

St. Jude study solves mystery of mammalian ears

...ell cilia in both mammals and non-mammals to swing back and forth quickly in a steady rhythm. In mammals, the rod-shaped body of the outer hair cell contracts and then vibrates in response to the sound waves, amplifying the sound. In a previous study, Zuo and his colleagues showed that a protein called ...

Old memory traces in brain may trigger chronic pain

...uffers from chronic pain, of which the majority is back pain. One of Apkarian’s studies with rats trie..., published in late 2006, he revealed that chronic back pain appears in a different part of the brain than the discomfort of burning your finger, for exampl...

The insect vector always bites twice

...e vector’s body. In most cases, the parasite moves back into the vector’s salivary glands in order to be transmitted to the human host when the insect bites again to take another blood meal. Morbidity among infected people is therefore associated with the degree of exposure of the subject to insect vector...

Dirty snow may warm Arctic as much as greenhouse gases

... cause warming, while bright surfaces reflect heat back into space and cause cooling. “When we inject d... lives in the atmosphere for a century, so cutting back on emissions can prevent further warming but does not produce immediate cooling....

New bacterium discovered -- related to cause of trench fever

... tens of thousands of soldiers with severe leg and back pain and recurrent fevers. The new species, recently named Bartonella rochalimae, is also closely related to the bacterium identified about 10 years ago as the cause of cat scratch disease: Bartonella henselae, which infects more than 25,000 peo...

Ancient DNA traces the woolly mammoth's disappearance

...diverged in isolation for some time before merging back into a single population. The DNA further suggests that no later than forty thousand years ago, one of the groups died out, leaving only the second alive at the time of the mammoth’s last gasp. “At a time when we should be very concerned about the...

Brightening prospects of using fluorescent nanotubes in medical applications

...centrifuge, let it set for a while and then put it back in the ultracentrifuge for another 12 hours, the liquid separates into a number of distinct layers. The topmost layer has a purple color and, when analyzed, proves to contain a surprisingly uniform population of the brightest nanotubes. The researc...

U-M researchers discover gene switched off in cancer can be turned on

...r drug, the researchers were able to turn the gene back on, allowing BRM to be expressed. The researchers ...ct it, but we need to find a better way to turn it back on. No drugs are designed to deal with a gene that’s turned off. But it’s a straightforward extensio...

Massive herds of animals found to still exist in Southern Sudan

...onservation Society. “We are happy to be welcomed back like old friends by the Government of Southern Sud...es and internally displaced people are on the move back into this area, which is causing deforestation east of the Sudd wetlands.” “With the billions bein...

Study shows lizard moms dress their children for success

...ocial circumstances. The extra hormone affects the back patterns of lizards that hatch from those eggs, cr...r disposal, so she can ensure a good match between back patterns and other traits that her offspring possess," said Lesley Lancaster, a UCSC graduate studen...

Women well informed about breast cancer, yet lacking knowledge about current treatments

..." What is my risk that my breast cancer will come back and/or spread to another part of my body" Where do I go for support when I need it"...

CT scan reveals ancient long-necked gliding reptile

...mage of a small reptile with a long neck and swept back wings. Gliding behavior evolved several times in reptiles and is present in the Indonesian reptile Draco. ...

Exploring the dark matter of the genome

... experimentally derived evidence of messenger RNAs back to the matching heterochromatin sequence. And we looked for sequences similar to ones already known from protein databases." These standard approaches to finding genes, Smith says, are relatively easy to perform in euchromatin but harder in heterochr...

Warning from Asian bees

.... “Roughly one-third of the food we eat relates back to bee pollinated crops, so most of the benefits of honeybees actually come from pollinations. “About 90 fruit and vegetable crops, including melons, pumpkins, and even cotton are more productive with their help. “And almond crops rely entirely...

UI anthropologist, colleagues discover remains of earliest giant panda

...of the Pliocene and Pleistocene epochs, stretching back some three millions years before the present. The pygmy giant panda lived in lowland tropical bamboo forests. It is often found associated with the extinct elephant-like creature, Stegodon, and the giant extinct ape, Gigantopithecus. Today's giant pa...

Prey not hard-wired to fear predators

...places. When the predator-prey relationship comes back into balance, impacts ripple through the system. ...by restoring ecosystems to bring native carnivores back to where they once thrived.” said Dr. Berger. Berger’s study, which looked at 19 areas including...

Surprising origin of cell's internal highways

...ped their growth and carefully followed the tracks back to their origin. "We show that not only the centrosome, but the Golgi also makes microtubules," Kaverina said. "And unlike centrosomal microtubules, which are radial and symmetric, these microtubules are directional." They found that microtubu...

The mouflons of the Kerguelen archipelago

...rom hunting trophies and managed to go all the way back to the son of the founders,” said Denis Réale with a smile. “We were even able to obtain genetic material from the population of origin from the Vincennes Zoo. “We took the DNA from these samples, and looked at specific genetic sites,“ explained Rena...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...,” Leonard said. Chemical analyses of the bones back up this conclusion. Carbon and nitrogen isotope values of the Alaskan wolf bones are intermediate between those of potential prey species—mammoth, bison, musk ox and caribou—suggesting that their diet was a mix of these large species. The cause...

Putting feelings into words produces therapeutic effects in the brain

...e, originates from early Buddhist teachings dating back some 2,500 years, said David Creswell, a research scientist with the Cousins Center for Psychoneuroimmunology at the Semel Institute for Neuroscience and Human Behavior at UCLA. Mindfulness is a technique in which one pays attention to his or her...

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