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Methane gas levels begin to increase again

CAMBRIDGE, Mass. The amount of methane in Earth's atmosphere shot up in 2007, bringing to an end a period of about a decade in which atmospheric levels of the potent greenhouse gas were essentially stable, according to a team led by MIT researchers. Methane levels in the atmosphere have more t...

Feats of strength begin a lizard's day

Male Jamaican anole lizards begin and end the day with displays of reptilian strength -- push-ups, head bobs and extensions of a colorful neck flap, or dewlap -- to defend their territory, according to a new study. "Anoles are highly visual species, so in that sense it is not surprising that t...

Did walking on 2 feet begin with a shuffle?

Somewhere in the murky past, between four and seven million years ago, a hungry common ancestor of todays primates, including humans, did something novel. While temporarily standing on its rear feet to reach a piece of fruit, this protohominid spotted another juicy morsel in a nearby shrub and b...

Study of African traditional medicine will begin world-first clinical trial

COLUMBIA, Mo. Described as a hotspot of botanical diversity, there are more than 20,000 indigenous plant species in South Africa. Several thousand of them are used by traditional healers every day in that country for treating a range of problems from the common cold to serious diseases such as AI...

Largest study to investigate risk factors of autism to begin enrolling families

OAKLAND, Calif., November 14, 2007 Researchers from Kaiser Permanente and the California Department of Public Health, as well as from five other sites nationwide, today will begin enrolling families in the largest study to date investigating the genetic and environmental factors that may cause au...

Girls who begin dieting twice as likely to start smoking

GAINESVILLE, Fla. Starting to diet seems to double the odds a teenage girl will begin smoking, a University of Florida study has found. UF researchers, who analyzed the dieting and smoking practices of 8,000 adolescents, did not find the same link in boys, who were also less likely than girls ...

Most common lung cancers may begin in newly discovered cells

The most common form of lung cancer may begin in a group of newly isolated lung stem cells, according to researchers from the Howard Hughes Medical Institute. Working in a mouse model, the researchers isolated a novel type of lung cell that can divide into fresh copies of itself and into the two...

EMBO pioneers pension plan for internationally mobile postdoctoral researchers

...age that optimally suits the needs of highly mobile scientists. Post-doctoral researchers who are beneficiaries of an EMBO Long-Term Fellowship may begin enrolling in the pension plan from 1 January 2010. "The international portability of the pension plan allows contributors to continue in the plan a...

NIH stimulus funding supports Emory biomedical scientists

...from the National Institutes of Health presents a tremendous opportunity for Emory scientists, along with researchers throughout the United States, to begin projects that are highly promising but might not have been funded otherwise, and to extend successful projects that could soon be translated into trea...

Climbing to new heights in the forest canopy

...ch as increasing carbon dioxide concentration and increasing forest fragmentation. A greater knowledge of these fascinating plants is warranted as we begin to understand the important ecological role they play in forest dynamics, structure, and composition. ...

Holding breath for several minutes elevates marker for brain damage

...eting in static apnea diving events, could cause neurological damage over time. The researchers recommended further research on free divers that would begin early in their careers and follow them for years to monitor their neurological function. The study is "Increased serum levels of the brain damage m...

Scientists decoding genomic sequences of H1N1 using isolates from outbreak in Argentina

...bers of the broader scientific community will bring new insights. Thus, our plan is to release sequences in draft form so that the vetting process can begin as soon as possible," said Dr. Lipkin. "While there is no evidence so far to indicate the emergence of resistance to the oseltamivir vaccine, the a...

Study links virus to some cases of common skin cancer

... the host DNA. "If it proves to be a cancer-causing virus, and if it proves to be common in the general population, it might be something we should begin screening people for," she says. ...

'Microfluidic palette' may paint clearer picture of biological processes

... The masterpieces that spring from the talents of Rembrandt, Van Gogh and other artists often begin with the creation of a gradient of colors on a palette. In a similar manner, researchers at the National Institute of Standards and Technology (NIST) ...

Reprogramming human cells without inserting genes

... including OCT4, SOX2 and NANOG, are accepted as markers of pluripotency because they are active in stem cells, but become dormant once the stem cells begin to differentiate and head down the path to developing into a specific kind of cell type and tissue. While the study of embryonic stem cells continu...

Jet-propelled imaging for an ultrafast light source

...of proteins are known. The Linac Coherent Light Source (LCLS) will soon begin operation at the SLAC National Accelerator Laboratory in Palo Alto, Califor... the problem of protein structure. Unfolding the origami Proteins begin as strings of amino acids that fold themselves into an amazing variety of o...

Bad mitochondria may actually be good for you

... popular theory explaining the aging process; over time, reactive oxygen species produced by mitochondria while they make energy slowly accumulate and begin damaging cells, including the mitochondria. Several recent studies have begun to question this theory, though, and to get some more direct answers, Si...

Skin-like tissue developed from human embryonic stem cells

...ncerns facing the field of stem cell biology that are related to their clinical use. We can now use these engineered tissues as 'tissue surrogates' to begin to predict how stable and safe hESC-derived cells will be after therapeutic transplantation. Our goal is to produce functional tissues to treat oral a...

New theory on why male, female lemurs same size

...is strategy should be favored, so there are plenty of ways it can be tested." Dunham said she hopes to travel to Madagascar within the next year to begin gathering data for a new project that will examine the impacts of climate change on lemur populations. Lemurs evolved on the African island in isol...

Flexible neck in cell-receptor DC-SIGN targets more pathogens

...eckband, the Reid T. Milner Professor of Chemistry at the U. of I. "Once we begin to understand the molecular design rules that lead to this tight binding, we can begin to design inhibitors to block this interaction." To study the binding beh...

New technique can fast-track better ionic liquids for biomass pre-treatments

...and numerous scientific studies have shown them to be prime candidates for replacing gasoline to meet our transportation needs. However, before we can begin to roll down the highways on sustainable, carbon-neutral grassoline, numerous barriers must be overcome, starting with finding ways to break lignocell...

Research shows that 'invisible hand' guides evolution of cooperative turn-taking

...ent types that behave differently in initial, uncoordinated interactions with others. Then as soon as a pair coordinates by chance, they instinctively begin to play 'tit for tat'. This locks them into mutually beneficial coordinated turn-taking indefinitely. Without genetic diversity, turn-taking cannot ev...

World's largest ocean observatory takes shape

...ted by the University of Washington) will lead the instrument portion of the installation. "Scientists and staff at NEPTUNE Canada are delighted to begin the final phase of installation following a decade of planning," says Dr. Chris Barnes, director of NEPTUNE Canada. "Working with industry partners, w...

1-finger exercise reveals unexpected limits to dexterity

...k by Valero-Cuevas showing how other ordinary tasks like tapping a surface are extremely challenging to the nervous system. Together these results begin to identify the mechanical pressures that could have driven the evolutionary specializations of our brains and bodies that make our hands so dexterous...

Ferns took to the trees and thrived

...y plant group that includes epiphytes. This fall, as a post-doctoral fellow at the National Evolutionary Synthesis Center (NESCent), Schuettpelz will begin to look for parallel patterns of diversification in epiphytic flowering plants like bromeliads and orchids. ...

Triggering muscle development -- a therapeutic cure for muscle wastage?

...pecific substance known as mechano growth factor (MGF) that activates stem cells already present in the tissue. Once activated, these progenitor cells begin to divide, creating additional muscle fibres and increasing the size and strength of the muscle. In addition to intensive exercise, muscles need to be...

First riser-drilling research operations undertaken

...rilling depth at the first borehole is 1,600 meters below the seafloor. Following drilling operations, vertical seismic profiling (VSP) is expected to begin as part of geophysical logging. Riser-drilling involves a large marine riser pipe that connects the CHIKYU to the seafloor. The riser pipe guides t...

ESHRE launches international study of polar body screening

... a pilot study has shown that the technique is feasible, the researchers intend to carry out an international randomised trial. The first phase will begin in September 2009 in two centres: the University of Bonn, Germany (Dr. Markus Montag and Professor Hans van der Ven), and SISMER, Bologna, Italy (Dr. ...

Research explores interactions between nanomaterials, biological systems

... breakup of materials that could release toxic substances upon dissolution. "Instead of waiting for knowledge to unfold randomly, we can already begin to view the events at nano-bio interface as a discoverable scientific platform that can be used for setting up a deliberate inorganic-organic roadmap ...

Discovery of a water snake that startles fish in a way that makes them flee into its jaws

...tentacles on its nose and he was curious about their function. "Before I begin a study on a new species, it is my practice to spend some time simply obser... its body to bend into a C-shape facing in the opposite direction so it can begin swimming away from danger as quickly as possible. Catania is the first s...

Research vessel Polarstern starts 24th Arctic season

...18th. The German research vessel Polarstern, operated by the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association, will begin its 24th Arctic expedition on Saturday, June 20th. 119 scientists from seven different nations will research the whole spectrum of current Arctic topi...

Rosenstiel students come out on top

... symbiont communities to stressors associated with climatic change, such as rising sea temperatures and increased ocean acidity. This summer, he will begin his graduate degree in Biology, working with Dr. Iliana Baums, a Rosenstiel School alumnus currently at Pennsylvania State University. For two cons...

Global sunscreen won't save corals

...ater more acidic, leading to lower mineral saturation. Recent research has indicated that continued carbon dioxide emissions will cause coral reefs to begin dissolving within a few decades, putting the survival of these ecosystems at extreme risk. Geoengineering's minimal effect on ocean acidification a...

UCLA cancer researchers develop model that may help identify cancer stem cells

...ts now being used. Because they're not actively dividing, they're invisible to conventional treatment methods. At some point, the cancer stem cells begin their process of self-renewal and differentiation, creating a new tumor. This explains why people can remain cancer free for years and still suffer a ...

Researchers from around the globe coming to K-State June 21 for workshop on Fusarium fungus

...tions that scientists never dreamed to ask, let alone answer. "Many problems arose because different species looked the same," Leslie said. "As you begin to tell those species apart with the DNA-based techniques, the breeding programs to look for resistance and the screening programs to look for toxin p...

Huntington's disease deciphered

...f delivery of materials to the terminals results in loss of transmission of signals from the neuron. Loss of signal transmission causes the neurons to begin to die back, leading to reduced transmissions, more dying back and eventual neuronal cell death. This mechanism also explains the late onset of th...

Urban myth disproved: Fingerprints do not improve grip friction

...designed a system that could produce forces ranging from a gentle touch to a tight grip, and then Warman strapped his index finger into the machine to begin measuring his fingerprint's friction. But after days of dragging the Perspex along Warman's fingers and thumbs, it was clear that something wasn't...

Specific genetic cause of fetal alcohol-related developmental disorders found

...of vital thyroid hormones in the parts of the brain that control learning, memory and emotional behaviors. "In light of our current finding, we can begin testing specific dietary supplements that could reverse the epigenetic alterations that disrupt the regulation of Dio3," Sittig said. "When given to t...

Brain-computer interface, developed at Brown, begins new clinical trial

...th paralysis to use those signals to control assistive devices, is about to begin a second, larger clinical trial. The system is based on neuroscience, engin...rsity. The study has been approved by the MGH Institutional Review Board to begin recruiting participants. The trial extends prior safety and feasibility res...

Dioxins in food chain linked to breastfeeding ills

... according to a University of Rochester Medical Center study. Researchers believe their findings, although only demonstrated in mice at this point, begin to address an area of health that impacts millions of women but has received little attention in the laboratory, said corresponding author B. Paige La...
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