Tag: "deep" at biology news

Healing the brain from the inside out

..." The Macklis group was able to induce stem cells deep in the cerebral cortex of adult mice to replace damaged neurons. These new neurons grew from already present immature precursor cells into fully formed, connected, and mature replacements. These home grown neurons demonstrate for the first time that ...

NSF-funded researchers discover evidence of microscopic life at the South Pole

...tors reported that ice cores taken at Lake Vostok, deep in the Antarctic interior, indicate the presence of microbes in what is suspected to be a vast pool of liquid water thousands of meters below the Antarctic ice sheet. That finding may have similar implications for extending the known limits of life....

Hopkins research may bring 'sigh' of relief to asthmatics

For several years, researchers have known that deep breaths benefit the lungs of healthy individuals ...ow, Johns Hopkins researchers have discovered that deep breaths also provide protection by preventing airways from closing in the first place. The findings ...

Aging alters sleep and hormone levels sooner than expected

...oved into mid-life, the proportion of slow wave or deep sleep decreased from nearly 20 percent of a normal...h hormone secretion, which occurs primarily during deep sleep, also declined by about 75 percent. By the age of 45, note the authors, most men have almost e...

Cellular membrane changes associated with acclimation to cold

...rapid changes in body temperature occurring during deep hibernation. "This study shows a physical membrane change through which cells may acclimate to extreme cold and still function," says John M. Hallenbeck, M.D., one of the authors and Chief of the Stroke Branch of the National Institute of Neurologica...

Scientists fear loss of colobus monkey heralds beginning of 'extinction spasm' of many West African species

...eighboring communities for conservation, you're in deep trouble, because someone is always going to come along with a better-paying alternative use of that resource," Struhsaker said. In their study, the scientists were supported by the American Society of Primatologists, the Chicago Zoological Society, ...

Sidebar: new trial should lead to better understanding of why exercise is an effective treatment for depression

...function, apparently caused by tiny little strokes deep in the brain," he said. "There is a growing consensus that these changes may actually be mediating the high rates of depression in these patients." Doraiswamy said that while depression is clearly associated with imbalances of key chemicals in t...

October Geology and GSA Today highlights

...deposit of geotechnically sensitive clay filling a deep bedrock basin, resulting in ground subsidence and severe sediment deformation. At approximately 4550 years B.P. another strong earthquake triggered many large landslides of sizes unequaled in historical time. Evidence for periodicity and nonlinearit...

Scientists tackle ecology of cities

...world, although they do exist in some marshes, the deep ocean, and streams, but these are less extreme systems. The authors explain the concept of "ecological footprint," which is the total area of productive land required to support the activities of a city in a sustainable way. The land must produce...

Beware the frozen vegetable ice pack to ease pain

...he time. In this casethe ice pack froze the tissue deep beneath the skin and stopped blood flow. They do not suggest that this home remedy should not be used, just that it should be used only for short periods. The Association of Chartered Physiotherapists in Sports Medicine recommends that the maximum s...

Two distinguished Rutgers chemists named Biophysical Society Fellows

...he future well-being of society and a life time of deep commitment to the education and training of the next generation of scientists." Berman, a resident of Lawrenceville, is a professor of chemistry and director of the Protein Data Bank, an international computer-based, three-dimensional atlas of bi...

Analysis of Martian meteorite using unique magnetic microscope

... microorganisms can exist for a number of years in deep space. Dynamic simulations indicate that a small, but significant number of the meteorites that travel between the two planets do so in less than a year. Further studies have shown that the process of re-entry into Earths atmosphere does not heat the...

Alive! scientists to discuss discovery of 250-million-year-old bacteria

...Rosenzweig, and Lowenstein obtained samples from a deep excavation for a waste disposal site in a southeastern New Mexico rock formation called the Permian Salado Formation. There they found salt crystals with tiny fluid inclusions that emtombed still viable saltloving bacteria. According to the researche...

Hopkins researcher finds bone disease and growth defect may have common genetic basis

...elop spontaneous bone fragments under the skin and deep inside their bodies. The fragments can be as large as rice grains and often cause acute pain by pressing against nearby nerve cells. The lesions caused by POH can be identified, leading to diagnosis soon after birth. Albright hereditary osteodystroph...

Midwest geologists propose new view of ancient continental collisions

...occurred. The massive volcanism which produced the deep K-bentonite beds is clear evidence that land masses were crunching together. "The question is...what was colliding with what? We believe it was a group of very small terrains much like the western Pacific today where island chains are moving toward m...

December Geology and GSA Today highlights

...hter Scale 10-13 earthquake. We find evidence from deep sea drilling that much of the eastern seaboard of ...failed and generated vast flows of debris into the deep sea as a result of the quake. The resulting mass flows reached as much as 1200 km offshore and accum...

Unprecedented fire season in southern Africa aids air quality, climate change research

... separated by a very thin just a few hundred feet deep layer of almost pristine air." The haze aerosols sampled were also more heat-absorbing than expected, which means the haze layer may have a significant warming influence on the regions atmosphere. "The aerosol in the region was surprisingly abs...

2000 FALL MEETING: updated press conferences, press registration, and other information

...ater, and plans will be discussed for the upcoming deep drilling of the impact crater and through a thick section of impactites, the crystalline material produced by the fusion of an impacting meteorite with local rock. It is anticipated that analyses of these rocks will help scientists quantify the envir...

Discovery may jump-start mine remediation efforts

...m to concentrate zinc sulfide. The biofilms, found deep in an abandoned mine, are heavily populated with bacteria, some of which help convert sulfate or sulfuric acid, a pervasive contaminant associated with the mining of metal ores, and zinc from ground water into zinc sulfide. "These results show how mi...

Voyage of the space veggies

... and water, it's safe to say that there would be a deep and abiding interest in their health. This leads to the final component of the bionic plant vision: feedback from plants to people. Plants could be fitted with sensors for vital indicators of health, such as pH, or for early-warning signals such as s...

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