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Oil-dwelling bacteria are social creatures in Earth's deep biosphere, new study shows

2014-12-12
Oil reservoirs are scattered deep inside the Earth like far-flung islands in the ocean, so their inhabitants might be expected to be very different, but a new study led by Dartmouth College and University of Oslo researchers shows these underground microbes are social creatures that have exchanged genes for eons. The study, which was led by researchers at Dartmouth College and the University of Oslo, appears in the ISME Journal. A PDF is available on request. The findings shed new light on the "deep biosphere," or the vast subterranean realm whose single-celled residents ...

Native fungus suggested as another tool for restoring ghostly whitebark pine forests

2014-12-12
BOZEMAN, Mont. - Cathy Cripps doesn't seem to worry about the grizzly bears and black bears that watch her work, but she is concerned about the ghosts and skeletons she encounters. The ghosts are whitebark pine forests that have been devastated by mountain pine beetles and white pine blister rust, said the Montana State University scientist who studies fungi that grow in extreme environments. The skeletons are dead trees that no longer shade snow or produce pine cones. The round purple pine cones hold the seeds that feed bears, red squirrels and Clark's nutcracker birds. ...

Patient awakes from post-traumatic minimally conscious state after administration of depressant drug

2014-12-12
Amsterdam, NL, December 12, 2014 - A patient who had suffered a traumatic brain injury unexpectedly recovered full consciousness after the administration of midazolam, a mild depressant drug of the GABA A agonists family. This resulted in the first recorded case of an "awakening" from a minimally-conscious state (MCS) using this therapy. Although similar awakenings have been reported using other drugs, this dramatic result was unanticipated. It is reported in Restorative Neurology and Neuroscience. Traumatic brain injuries occur at high rates all over the world, estimated ...

Can a blood biomarker predict the presence of intracranial lesions following mild traumatic brain injury?

Can a blood biomarker predict the presence of intracranial lesions following mild traumatic brain injury?
2014-12-12
New Rochelle, NY, December 11, 2014--In cases of traumatic brain injury (TBI), predicting the likelihood of a cranial lesion and determining the need for head computed tomography (CT) can be aided by measuring markers of bone injury in the blood. The results of a new study comparing the usefulness of two biomarkers released into the blood following a TBI are presented in Journal of Neurotrauma, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Journal of Neurotrauma website at http://online.liebertpub.com/doi/full/10.1089/neu.2013.3245 ...

Training elderly in social media improves well-being and combats isolation

2014-12-12
Training older people in the use of social media improves cognitive capacity, increases a sense of self-competence and could have a beneficial overall impact on mental health and well-being, according to a landmark study carried out in the UK. A two-year project funded by the European Union and led by the University of Exeter in partnership with Somerset Care Ltd and Torbay & Southern Devon Health and Care NHS Trust gave a group of vulnerable older adults a specially-designed computer, broadband connection and training in how to use them. Those who received training ...

MBL imaging technique reveals that bacterial biofilms are associated with colon cancer

MBL imaging technique reveals that bacterial biofilms are associated with colon cancer
2014-12-12
WOODS HOLE, Mass.--Since the first "catalog" of the normal bacterial makeup of the human body was published in 2012, numerous connections between illness and disturbances in the human microbiota have been found. This week, scientists report yet another: Cancerous tumors in the ascending colon (the part nearest to the small intestine) are characterized by biofilms, which are dense clumps of bacterial cells encased in a self-produced matrix. "This is the first time that biofilms have been shown to be associated with colon cancer, to our knowledge," says co-author Jessica ...

Women don't run?

2014-12-12
PITTSBURGH--An interest in the gender gap between the representations of female candidates in U.S. elections compared to their male counterparts led two University of Pittsburgh professors to take the issue into the laboratory for three years of research. Associate Professors of Political Science Kristin Kanthak and Jonathan Woon have published an article about the first phase of their research findings. "Women Don't Run? Election Aversion and Candidate Entry" was published online Dec. 2 in the American Journal of Political Science. "Past research has shown that women ...

A new trout species described from the Alakır Stream in Antalya, Turkey

A new trout species described from the Alakır Stream in Antalya, Turkey
2014-12-12
A group of researchers from Recep Tayyip Erdoğan University, Faculty of Fisheries in Turkey discovered a new trout species. The newly described species Salmo kottelati, belongs to the Salmonidae family, which includes salmons, trouts, chars, graylings and freshwater whitefishes. Salmonids include over 200 species, which have a high economic value because of their taste and famed sporting qualities. The genus Salmo is widely distributed in rivers and streams of basins of the Marmara, Black, Aegean and Mediterranean seas. The genus is represented by 12 species in ...

Viral 'fossils' study on birds finds fewer infections than in mammals

2014-12-12
In a contribution to an extraordinary international scientific collaboration the University of Sydney found that genomic 'fossils' of past viral infections are up to thirteen times less common in birds than mammals. "We found that only found only five viral families have left a footprint in the bird genome (genetic material) during evolution. Our study therefore suggests that birds are either less susceptible to viral invasions or purge them more effectively than mammals," said Professor Edward Holmes, from the University of Sydney's Charles Perkins Centre, School of ...

22.7 percent of pregnant women suffer intimate partner violence

22.7 percent of pregnant women suffer intimate partner violence
2014-12-12
A new study analyses the violent behaviours exhibited towards pregnant women. While 21% of women suffer emotional violence during pregnancy, 3.6% encounter physical or sexual violence. Furthermore, 36.1% of those who reported physical violence claimed that it happened "very often" or "daily". Whilst for many women pregnancy is a happy time, for almost one in four it turns out not to be so enjoyable. An investigation into the prevalence of domestic violence against pregnant women has found that 22.7% endure some kind of violence - emotional, physical or sexual - within ...

Researchers use real data rather than theory to measure the cosmos

2014-12-12
For the first time researchers have measured large distances in the Universe using data, rather than calculations related to general relativity. A research team from Imperial College London and the University of Barcelona has used data from astronomical surveys to measure a standard distance that is central to our understanding of the expansion of the universe. Previously the size of this 'standard ruler' has only been predicted from theoretical models that rely on general relativity to explain gravity at large scales. The new study is the first to measure it using ...

Science: Big data explain evolution of birds

Science: Big data explain evolution of birds
2014-12-12
About 95 percent of the more than 10,000 bird species known only evolved upon the extinction of dinosaurs about 66 million years ago. According to computer analyses of the genetic data, today's diversity developed from a few species at a virtually explosive rate after 15 million years already. KIT scientists designed the algorithms for the comprehensive analysis of the evolution of birds. To obtain the results that are now presented in the Science journal, a computing capacity of 300 processor-years was required. (DOI 10.1126/science.1253451) "Computation of these trees ...

Cocaine consumption quadruples the risk of sudden death in people between 19 and 49

2014-12-12
This news release is available in Spanish. What is more, this study is the first one conducted using forensic samples taken from deceased individuals. So they examined all the sudden deaths that underwent forensic analysis and which took place in Bizkaia over a seven-year period, between January 2003 and December 2009. The post-mortem examinations were conducted by the only service existing in the province: the Forensic Pathology Service of Bizkaia of the Basque Institute of Forensic Medicine. The research has been published by the specialised journal Addiction, the ...

Link between low blood glucose and cardiovascular events revealed

Link between low blood glucose and cardiovascular events revealed
2014-12-12
A study involving scientists from the University of Leicester has established a link between hypoglycaemia and increased risk of cardiovascular events and mortality in patients with diabetes. Professors Kamlesh Khunti and Melanie Davies, scientists from the University of Leicester's Diabetes Research Centre, have confirmed an association between hypoglycaemia and an increased risk of cardiovascular events and mortality in insulin-treated patients with diabetes, which could lead to changes in the way some patients' treatment is managed. The results were published online ...

More-flexible digital communication

2014-12-12
Communication protocols for digital devices are very efficient but also very brittle: They require information to be specified in a precise order with a precise number of bits. If sender and receiver -- say, a computer and a printer -- are off by even a single bit relative to each other, communication between them breaks down entirely. Humans are much more flexible. Two strangers may come to a conversation with wildly differing vocabularies and frames of reference, but they will quickly assess the extent of their mutual understanding and tailor their speech accordingly. Madhu ...

Slow rate of croc mutation revealed in major Science study

Slow rate of croc mutation revealed in major Science study
2014-12-12
Crocodilians, including the Australian saltwater crocodile, mutate at about a quarter of the rate of birds, new research has revealed. The discovery is the result of genome sequencing three crocodilian species - the Australian saltwater crocodile, the American alligator and the Indian gharial - by an international collaboration of scientists, including six from the University of Sydney's Faculty of Veterinary Science. The research is reported in a special edition of Science published on 12 December dedicated to all aspects of bird evolution and its closest living biological ...

Nuclear fragments could help uncover the origins of life-supporting planets

2014-12-12
New research published today in the journal Physical Review Letters describes how recreating isotopes that occur when a star explodes, can help physicists understand where life-supporting elements may be found in space. For the first time, a research team led by the University of Surrey, Japan's RIKEN Nishina Centre and the University of Beihang, was able to observe the isotopes of certain elemental chemicals formed as a star explodes. The isotopes of these elements (samarium and gadolinium) are sensitive tracers of the way that stars explode, and therefore help in ...

Comet landing named Physics World Breakthrough of the Year

Comet landing named Physics World Breakthrough of the Year
2014-12-12
The first ever landing of a man-made probe onto a comet has been named Physics World Breakthrough of the Year for 2014. From a shortlist of 10 highly commended breakthroughs, the historic achievement by scientists working on the Rosetta mission was singled out by the Physics World editorial team for its significance and fundamental importance to space science. The landing of the Philae probe, which captivated not only the physics community but millions of people worldwide, was the culmination of 10 years' work by scientists at the European Space Agency (ESA), who successfully ...

Wake Forest research confirms controversial nitrite hypothesis

2014-12-12
WINSTON-SALEM, N.C. - Dec. 12, 2014 - Understanding how nitrite can improve conditions such as hypertension, heart attack and stroke has been the object of worldwide research studies. New research from Wake Forest University has potentially moved the science one step closer to this goal. In a paper published online ahead of print in the February issue of the Journal of Biological Chemistry, senior co-author Daniel Kim-Shapiro, professor of physics at Wake Forest, and others show that deoxygenated hemoglobin is indeed responsible for triggering the conversion of nitrite ...

Jamie's Ministry of Food brings about changes in food attitudes and behaviors

2014-12-12
A study looking at Jamie's Ministry of Food Australia 10-week program has found that it brings not only a change in attitudes but also in behavior when buying healthy food. The research published in the open access journal BMC Public Health has found that these changes continue up to six months after completion of the program. Jamie's Ministry of Food was a campaign started with the aim of encouraging people to develop cooking skills to prepare simple, fresh and healthy food easily and quickly. It is based on a British initiative during the Second World War, which was ...

Poor diet links obese mothers and stunted children

2014-12-12
Malnutrition is a major cause of stunted growth in children, but new UCL research on mothers and children in Egypt suggests that the problem is not just about quantity of food but also quality. Obesity and malnutrition are often thought of as problems at opposite ends of the nutrition spectrum, but the study found that 6.7% of Egyptian mothers were obese and had stunted children. In these 'double-burden' households with obese mothers and stunted children, malnutrition is unlikely to be down to scarcity of food. The study, published in the Maternal and Child Health Journal, ...

What's on your surgeon's playlist?

2014-12-12
In the Christmas issue of The BMJ, surgeons at the University Hospital of Wales examine the intertwined history of music and healing, and suggest tunes for surgeons and theatre staff to play - and to avoid - during operations. As early as 4000 BC, "hallelujah to the healer" was played as part payment for medicinal services, while the ancient Greeks identified Apollo as the father of both healing and music. More recently, studies have shown beneficial calming and even pain relieving effects of music for patients having surgery. But does music strike a chord with the ...

Study supports the theory that men are idiots

2014-12-12
Sex differences in risk seeking behaviour, emergency hospital admissions, and mortality are well documented. Males are more likely to be admitted to an emergency department after accidential injuries, more likely to be admitted with a sporting injury, and more likely to be involved in a fatal road traffic collision. However, little is known about sex differences in idiotic risk taking behaviour. So researchers in north east England decided to test "male idiot theory" (MIT) that many of the differences in risk seeking behaviour may be explained by the observation that ...

Left wing 'armchair socialists' more physically active than political centrists

2014-12-12
In fact, political centrists would do well to stop 'sitting on the fence' and boost their physical activity levels to improve their health, say the researchers. The term "armchair socialist" was coined in the 19th century by German economists who scoffed at academics advocating social policy, dubbing them "socialists of the chair" (Kathedersozialisten). The term has since evolved to describe middle class people who talk a lot about politics but who aren't politically active in any way, and fail to "walk the talk." The concept has been widely adopted, prompting several ...

Why are magazines in practice waiting rooms mainly old?

2014-12-12
Fed up with complaints about the lack of up to date magazines in the waiting room of his general practice, Professor Bruce Arroll and colleagues set out to answer the question. Their findings are published in the Christmas issue of The BMJ. A total of 87 magazines were stacked into three mixed piles and placed in the waiting room of a general practice in Auckland, New Zealand. They included non-gossipy magazines (Time magazine, the Economist, Australian Women's Weekly, National Geographic, BBC History) and gossipy ones (defined as having five or more photographs of celebrities ...
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