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Tag: "canal" at biology news

Reconstructing the biology of extinct species: A new approach

...h species, measuring the size of each semicircular canal and calculating the radius of curvature. Most of ... fast and agile. The scientists then compared the canal size of each species to its category of movement. The results revealed a highly significant stat...

Researchers use MRI to predict recovery after spinal cord injury

...s: maximum spinal cord compression (MSCC), maximum canal compromise (MCC) and length of lesion (LOL). They also looked at other factors, including bleeding within the spine, swelling and soft tissue injury. The results showed that severity of MSCC, bleeding and cord swelling were key indicators of a poo...

MIT engineers probe spiders' polymer art

... flows from the gland through an S-shaped, tapered canal to the outside of the spider's body, the long protein molecules become aligned and the viscosity (or resistance to flow) drops by a factor of 500 or more. As the resulting liquid exits the abdomen through the spinneret, it has the characteristics ...

Stimulation of the semicircular canals can artificially control human walking and balance

... found that artificial stimulation of semiciruclar canal nerves afforded "remote control" that was accurate enough to keep subjects on pathways and avoiding obstacles while walking blindfolded through botanical gardens. The researchers also found that with a subject's head in another position, exactly the ...

Frog’s ear canal may provide insights for understanding human hearing loss

...ibrations to the inner ear. The presence of an ear canal not only protects A. tormotus' thin and fragile eardrum from the environment, but also lessens the distance between the eardrum and the inner ear, thus allowing the bones of the middle ear to be shorter, and as a result, lighter in weight. Scientist...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

... by such suggested methods as sanitizing the birth canal may not work, he said. A better alternative might be to have pregnant women start taking anti-retrovirals before going into labor. ...

Researchers discover stem cell 'guide' that may be key for targeting neural stem cell treatments

...es in both brain hemispheres connected the central canal of the spinal cord. Zhou and his colleagues discovered how PK2 guides the migration of neurons born from neural stem cells from the subventricular zone in the brain's core through mature tissue to reach the olfactory bulb, the "smell" part of the br...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...ron remain in the San Luis Drain, a concrete-lined canal originally intended to channel irrigation wastewater from Central Valley farms to the Sacramento River Delta near Antioch. Selenium is considered an essential trace mineral for both humans and animals, but it becomes toxic at high doses. The dangers ...

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