Wetlands are a well-established and prolific source of atmospheric methane. Yet despite an abundance of seething swamps and flooded forests in the tropics, ground-based measurements of methane have fallen well short of the quantities detected in tropical air by satellites. In 2011, Sunitha Pangala, a PhD student at The Open University, who is co-supervised by University of Bristol researcher Dr Ed Hornibrook, spent several weeks in a forested peat swamp in Borneo with colleague Sam Moore, assessing whether soil methane might be escaping to the atmosphere by an alternative ...

Dallas, Feb. 13--The multidisciplinary team of scientists, who on November 24, 2012 announced the results of their five-year long study of DNA samples from a novel hominin species, commonly known as "Bigfoot" or "Sasquatch," publishes their peer-reviewed findings today in the DeNovo Journal of Science (http://www.denovojournal.com). The study, which sequenced three whole Sasquatch nuclear genomes, shows that the legendary Sasquatch is extant in North America and is a human relative that arose approximately 13,000 years ago and is hypothesized to be a hybrid cross of modern ...

The September 2012 record low in Arctic sea-ice extent was big news, but a missing piece of the puzzle was lurking below the ocean's surface. What volume of ice floats on Arctic waters? And how does that compare to previous summers? These are difficult but important questions, because how much ice actually remains suggests how vulnerable the ice pack will be to more warming. New satellite observations confirm a University of Washington analysis that for the past three years has produced widely quoted estimates of Arctic sea-ice volume. Findings based on observations from ...

When it comes to having a lasting and fulfilling relationship, common wisdom says that feeling close to your romantic partner is paramount. But a new study finds that it's not how close you feel that matters most, it's whether you are as close as you want to be, even if that's really not close at all. "Our study found that people who yearn for a more intimate partnership and people who crave more distance are equally at risk for having a problematic relationship," says the study's lead author, David M. Frost, PhD, of Columbia University's Mailman School of Public Health. ...

Using underwater video cameras to record fish feeding on South Pacific coral reefs, scientists have found that herbivorous fish can be picky eaters – a trait that could spell trouble for endangered reef systems. In a study done at the Fiji Islands, the researchers learned that just four species of herbivorous fish were primarily responsible for removing common and potentially harmful seaweeds on reefs – and that each type of seaweed is eaten by a different fish species. The research demonstrates that particular species, and certain mixes of species, are potentially critical ...

PHILADELPHIA — Researchers from the University of Pennsylvania School of Veterinary Medicine have discovered that a protein called Jagged-1 stimulates human stem cells to differentiate into bone-producing cells. This protein could help both human and animal patients heal from bone fractures faster and may form the basis of treatments for a rare metabolic condition called Alagille syndrome. The study, published in the journal Stem Cells, was authored by three members of Penn Vet's departments of Clinical Studies-New Bolton Center and Animal Biology: postdoctoral researchers ...

FASEB also praised the President's emphasis on increasing investments in science and innovation. President Obama said, "Now is not the time to gut these job-creating investments in science and innovation. Now is the time to reach a level of research and development not seen since the height of the Space Race." In addition, the President noted that the automatic spending cuts known as sequestration would devastate priorities like education, energy, and medical research. "We will continue our advocacy efforts to urge Congress to sustain federal funding for the National Institutes ...

Opera audiences can feel the chemistry in romance-inspired classics like Mimi's aria from La Bohème, Cavaradossi's remembrance of his beloved while awaiting execution in Tosca and that young lady pining for her man with "O mio babbino caro" in the opera Gianni Schicchi. An article in ACS' Journal of Chemical Education, however, focuses on the real chemistry — of poisons and potions — that intertwines famous operatic plots. João Paulo André points out that opera, in addition to being a form of theater, can be used as a teaching tool for chemistry students and the general ...

A new discovery promises to allow expanded use of a mainstay biological pest control method, which avoids the health, environmental and pest-resistance concerns of traditional insecticides, scientists are reporting. The advance toward broadening applicability of the so-called sterile insect technique (SIT) appears in the journal ACS Synthetic Biology. Luke Alphey and colleagues explain that the Lepidoptera, a large family of insects with a caterpillar stage, cause widespread damage worldwide to cotton; apples, pears and other fruits; and vegetable crops like broccoli, ...

CHAPEL HILL, N.C. – Triple-negative breast cancers are more biologically diverse than previously believed and classification should be expanded to reflect this heterogeneity, according to University of North Carolina researchers. In a study published in the February issue of The Oncologist conducted by UNC and the Vall d'Hebron Institute of Oncology in Barcelona, Spain, a team lead by Charles Perou, PhD, of UNC Lineberger Comprehensive Cancer Center, examined more than 1,700 breast tumors, including 412 triple negative (TN) breast cancers, and concluded that triple-negative ...

Vitamin C seems to be particularly beneficial for people under heavy physical stress. In five randomized trials of participants with heavy short-term physical stress, vitamin C halved the incidence of the common cold. Three of the trials studied marathon runners, one studied Swiss school children in a skiing camp and one studied Canadian soldiers during a winter exercise. Furthermore, in a recent randomized trial carried out with adolescent competitive swimmers, vitamin C halved the duration of colds in males, although the vitamin had no effect on females. Regular ...

The Microsoft Kinect game controller could cut the US healthcare bill by up to $30 billion by allowing physicians and other medics to interact with patients remotely so reducing the number of hospital visits and the associated risk of infection. Writing in the latest issue of the International Journal of Electronic Finance, Janet Bailey of the University of Arkansas at Little Rock is working with Bradley Jensen of Microsoft Corporation, in Irving, Texas, to explain how gaming technology could be used to "teleport" the knowledge and skills of healthcare workers to where ...

ALEXANDRIA, Va. – Co-sponsors of the 2013 Genitourinary Cancers Symposium announced today important research to be presented at this year's meeting, taking place February 14-16 at the Rosen Shingle Creek in Orlando, Florida. Three of the featured studies focus on the prevention, diagnosis and treatment of prostate cancers; another study looks at a new immunotherapy for metastatic kidney cancer. Thursday, February 14 Presentations Abstract # 10: Long-term survival of subjects in the prostate cancer prevention trial. General Poster Session A Thursday, February 14, ...

A team of researchers from Russia, Spain, Belgium, the U.K. and the U.S. Department of Energy's (DOE) Argonne National Laboratory announced findings last week that may represent a breakthrough in applications of superconductivity. The team discovered a way to efficiently stabilize tiny magnetic vortices that interfere with superconductivity—a problem that has plagued scientists trying to engineer real-world applications for decades. The discovery could remove one of the most significant roadblocks to advances in superconductor technology. Superconductors are extremely ...

Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century. Erosion of the discharge channels walls, however, has limited their application to the inner solar system. A research team at Caltech's Jet Propulsion Laboratory, in Pasadena, Calif., has found a way to effectively control this erosion by shaping the engine's magnetic field in a way that shields the walls from ion bombardment. Ions are produced in Hall thrusters when electrons ...

CAMBRIDGE, Mass. (February 13, 2013) – Whitehead Institute researchers have identified a previously unrecognized layer of genetic regulation that is necessary for the generation of undesirable white fat cells. When this regulation is disrupted, white fat cells are unable to accumulate lipid droplets or mature from their precursors. "We're trying to figure out what the mechanism is—what it takes to make fat cells," says Whitehead Founding Member Harvey Lodish, who is also a professor of biology and a professor of bioengineering at MIT. "The obvious reason we're interested ...

Philadelphia, Pa. (February 13, 2013) – For many patients with difficult-to-treat neuropathic pain, deep brain stimulation (DBS) can lead to long-term improvement in pain scores and other outcomes, according to a study in the February issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. About two-thirds of eligible patients who undergo DBS achieve significant and lasting benefits in terms of pain, quality of life, and overall health, according to the ...

A new University of Alberta study shows that busy beavers are helping Canada geese get an earlier start when the birds fly home and begin spring nesting. Ponds in Alberta where beavers were active tended to result in earlier thaw of winter snowpack, giving the geese a better chance at reproductive success, according to the study, published recently in Mammalian Biology. The study is the first to link beavers to early season nesting habits of Canada geese in a Northern climate. A team led by Glynnis Hood, an associate professor in the Department of Science at the ...

Government limits on mold toxins present naturally in grain crops should be expanded to include so-called "masked mycotoxins" that change from harmless to potentially harmful forms in the body, a new study concludes. It appears in ACS' journal Chemical Research in Toxicology. Chiara Dall'Asta and colleagues explain that molds growing naturally on wheat, corn and other plants produce toxic substances termed mycotoxins. Some health experts regard mycotoxins as the most serious chronic dietary risk factor, greater than the potential health threats from pesticides and insecticides. ...

February 13, 2013 Cambridge, MA: The nanotechnology research space is rapidly growing, with vast implications for the healthcare, consumer electronics, surveillance, and defense industries. However, a major limitation to this research is the ability to create particles that vary in shape and function on a micrometer or nanometer scale. To overcome these limitations, chemical engineers at Johns Hopkins University have developed self-assembling particles that are inspired by origami, the traditional Japanese art of folding paper into complex three-dimensional shapes. ...

CAMBRIDGE, MA -- Silicon, the material of high-tech devices from computer chips to solar cells, requires a surface coating before use in these applications. The coating "passivates" the material, tying up loose atomic bonds to prevent oxidation that would ruin its electrical properties. But this passivation process consumes a lot of heat and energy, making it costly and limiting the kinds of materials that can be added to the devices. Now a team of MIT researchers has found a way to passivate silicon at room temperature, which could be a significant boon to solar-cell ...

HOUSTON - Researchers have identified a pivotal protein in a cellular transformation that makes a cancer cell more resistant to treatment and more capable of growing and spreading, making it an inviting new target for drug development. Additionally, the international team led by scientists at The University of Texas MD Anderson Cancer Center found the cancer drug sunitinib potentially has a new role in treating triple-negative, claudin-low breast cancer, a particularly resistant version of a type of cancer that is already difficult to treat. "We found that FOXC2 lies ...

New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The remnant appears to be the product of a rare explosion in which matter is ejected at high speeds along the poles of a rotating star. The remnant, called W49B, is about a thousand years old as seen from Earth and located about 26,000 light-years away. "W49B is the first of its kind to be discovered in the galaxy," said Laura Lopez, who led the study at the Massachusetts Institute of Technology. "It appears ...

SAN ANTONIO, Texas (Feb. 13, 2013) — By relying on hunches rather than posing a few screening questions, primary care clinicians may be missing three-fourths of the alcohol problems in their patients, a newly released analysis shows. "It's often off the radar — people come in for hypertension and are not asked how much they drink," said study co-author Barbara J. Turner, M.D., M.S.Ed., M.A., M.A.C.P., of UT Medicine San Antonio. Primary care offices typically don't have good systems to administer questionnaires to screen for certain problems, including alcohol consumption, ...

About 60 percent of pediatric cancer patients experience malnourishment during treatment. At that point, patients and families have a choice: tube feeding or IV nutrition supplement. Which would you choose? A study published this week in the Journal of Pediatric Oncology Nursing shows that families' perceptions, especially of the discomfort of tube feeding, leads to choosing IV over tube – despite the fact that tube feeding is usually the better choice, associated with better gut function and lower rates of infection. "Despite the benefits of tube feeding, we found a ...