Daily non-political popular news in brief.
Resilient form of plant carbon gives new meaning to term 'older than dirt'
11-23-2006 · EurekAlert!A particularly resilient carbon from the first plants to regrow after the last ice age -- and that same type of carbon from all the plants since -- appears to have accumulated for 11,000 years in the forests of British Columbia. Modelers of carbon cycles, who've assumed that this type of carbon remains in the soils only 1,000 to 10,000 years before it returns to the atmosphere as carbon dioxide, may need to revise their thinking.
Read more »
Keywords: resilient, form, plant, carbon, meaning, term, older, dirt
« Previous | Next »
Similar news on "Resilient form of plant carbon gives new meaning to term 'older than dirt'":
- Complex carbon picture clearer
12-11-2007 · EurekAlert!
A new study looks at a poorly understood process with potentially critical consequences for climate change. Emma Sayer, postdoctoral fellow at the Smithsonian Tropical Research Institute, Jennifer Powers, an assistant professor in the University of Minnesota's Department of Ecology, Evolution and Behavior, and Edmund Tanner, researcher at Cambridge University, published the findings of their long-term study on the effects of increased plant litter on soil carbon and nutrient cycling in the Dec. 12 edition of PLoS ONE.
Similar news · Read more »
- Physiotherapy has short-term benefits for patients after knee surgery
09-24-2007 · EurekAlert!
Physiotherapy can improve the daily lives of patients who have had knee replacement surgery due to osteoarthritis in the short term, according to a study published on bmj.com today. Osteoarthritis is the commonest form of disability in older people. Total knee replacement surgery (knee arthroplasty) is a common procedure but even after surgery patients may still experience problems carrying out everyday tasks.
Similar news · Read more »
- Ancient climate change may portend toasty future
12-07-2006 · EurekAlert!
Scientists, including Ken Caldeira of the Carnegie Institution's Department of Global Ecology, have found that the Earth's global warming, 55 million years ago, may have resulted from the climate's high sensitivity to a long-term release of carbon. This finding contradicts the position held by many climate-change skeptics that the Earth system is resilient to such emissions.
Similar news · Read more »
- Shaky financial ground awaits many American retirees
08-16-2007 · EurekAlert!
The burden of long-term economic security in the United States is moving away from employers and the government onto the shoulders of workers -- a transformation that Yale University political scientist Jacob Hacker calls "The Great Risk Shift." The latest issue of Public Policy & Aging Report tackles the surrounding issues that older Americans will now face.
Similar news · Read more »
- Older surgical patients at greater risk for developing cognitive problems
01-02-2008 · EurekAlert!
Patients over the age of 60 who have elective surgeries such as joint replacements, hysterectomies and other nonemergency, inpatient procedures, are at an increased risk for long-term cognitive problems, according to a new study led by Duke University Medical Center researchers.
Similar news · Read more »
- Drop in acid rain altering Appalachian stream water
12-12-2006 · EurekAlert!
Appalachian hardwood forests may be getting a respite from acid rain but data from a long-term ecological study of stream chemistry suggests that the drop in acid rain may be changing biological activity in the ecosystem and hiking dissolved carbon dioxide in forest streams.
Similar news · Read more »
- Building blocks of life formed on Mars
12-11-2007 · EurekAlert!
Organic compounds contain carbon and hydrogen and form the building blocks of all life on Earth. By analyzing organic material and minerals in the Martian meteorite Allan Hills 84001, scientists at the Carnegie Institution's Geophysical Laboratory have shown for the first time that building blocks of life formed on Mars early in its history. Scientists have thought that organics in ALH 84001 was brought to Mars by meteorite impacts or originated from ancient Martian microbes.
Similar news · Read more »
- Balance training better than tai chi at improving mobility among older adults
12-11-2006 · EurekAlert!
A new study suggests that a program focusing on increasing step length and speed is more effective at improving mobility and balance than tai chi. While tai chi -- a Chinese martial art form consisting of slow, rotational movements and weight-shifting -- offers many benefits, the researchers say, they're not as great as those produced by a balance-training program.
Similar news · Read more »
- Experimental MS drug shows promise, offers new window on disease
02-13-2008 · EurekAlert!
A drug therapy currently used to treat non-Hodgkin's lymphoma and rheumatoid arthritis had a significant effect in treating the most common form of multiple sclerosis in a small, short-term clinical trial led by scientists at University of California-San Francisco.
Similar news · Read more »
- HPV test is a better long-term predictor of cervical cell abnormalities than pap smear
11-01-2006 · EurekAlert!
The best initial cervical cancer screening tool for younger women is still the traditional Pap smear. However, a large Danish study has found that for older women (age 40 and older), a test for human papillomavirus (HPV) is a much more effective way to screen for potential cancer.
Similar news · Read more »
