news 2014


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Results 21 - 40 of 2491.

Life Sciences - Chemistry - 22.12.2014
Mysteries of 'molecular machines' revealed
Mysteries of ’molecular machines’ revealed
Scientists are making it easier for pharmaceutical companies and researchers to see the detailed inner workings of molecular machines. "Understanding how all these machines work is the key to developing new therapeutics, for treating genetic disorders, and for developing new ways to make useful materials." EMBARGOED for Monday, December 22, 11 a.m. Eastern Time Phenix software uses X-ray diffraction spots to produce 3-D image LOS ALAMOS, N.M. Dec.

Health - Life Sciences - 22.12.2014
Researchers sweep cells apart for use in medical research
Scientists have developed a new method to separate cells, which could lead to more efficient medical research. In a new paper published in the Royal Society of Chemistry's journal Lab on A Chip, University of Glasgow researchers outline how they have used moving acoustic waves to very gently separate clinically useful cells from cellular debris.

Computer Science - Mathematics - 22.12.2014
'Text overlap' clutters scientific papers, arXiv analysis finds
Computer text analysis of a huge database of scientific papers shows a large amount of "text overlap," where authors use text from previous papers of their own and others, not always with attribution. This is not necessarily good or bad, Cornell researchers say. "Our first goal was to characterize the accepted practice, not to be judgmental," said Paul Ginsparg, professor of physics and information science and founder of the online arXiv collection of scientific papers, now maintained by Cornell University Library.

Physics - Astronomy / Space Science - 19.12.2014
Origin of polar auroras revealed
Origin of polar auroras revealed
Researchers from UCL, University of Southampton and Cambridge University together with ESA and NASA have uncovered the origin of a colourful display in the night sky called 'theta aurora', explaining for the first time how auroras at high-latitudes form. Auroras are the most visible manifestation of the sun's effect on Earth, but many aspects of these spectacular displays are still poorly understood.

Life Sciences - Health - 19.12.2014
Some E. coli bacteria hijack key proteins to survive longer
Some E. coli bacteria hijack key proteins to survive longer
A new study shows how two strains of the intestinal bug E. coli manage to hijack host proteins used to control the body's immune system. The research shows how E. coli bacteria can block key human enzymes, in a way that has not previously been shown in any other biological context. The enzymes, known as kinases, are molecular switches that control processes such as immune responses to infection and cancers in humans.

Chemistry - Physics - 19.12.2014
Making a Good Thing Better: Berkeley Lab Researchers Open a Possible Avenue to Better Electrolyte for Lithium Ion Batteries
Making a Good Thing Better: Berkeley Lab Researchers Open a Possible Avenue to Better Electrolyte for Lithium Ion Batteries
The lithium-ion batteries that mobilize our electronic devices need to be improved if they are to power electric vehicles or store electrical energy for the grid. Berkeley Lab researchers looking for a better understanding of liquid electrolyte may have found a pathway forward.

Physics - 19.12.2014
Unraveling the light of fireflies
Unraveling the light of fireflies
How do fireflies produce those mesmerizing light flashes? Using cuttingedge imaging techniques, scientists from Switzerland and Taiwan have unraveled the firefly's intricate light-producing system for the first time. Fireflies used rapid light flashes to communicate. This "bioluminescence" is an intriguing phenomenon that has many potential applications, from drug testing and monitoring water contamination, and even lighting up streets using glow-in-dark trees and plants.

Health - Administration - 19.12.2014
The hunt for botanicals
Herbal medicine can be a double-edged sword and should be more rigorously investigated for both its beneficial and harmful effects, say researchers writing in a special supplement of Science. Co-written by King's College London experts, the article reviews botanicals that have shown promising results in treating fibrosis or tissue scarring, along with some other herbs that are associated with pro-fibrotic damage to the liver, the kidney and some other organs.

Health - Life Sciences - 19.12.2014
Peanut component linked to cancer spread
Cancer patients are advised to avoid regular consumption of peanuts Scientists at the University of Liverpool have found that a component of peanuts could encourage the spread and survival of cancer cells in the body. In the first study of its kind, scientists showed that a protein in peanuts, called peanut agglutinin (PNA), binds to a special sugar chain, which occurs mainly on pre-cancerous and cancer cells, and interacts with a larger protein expressed on the surface of tumour cells in the bloodstream.

Philosophy - Life Sciences - 18.12.2014
Neuroscientists identify brain mechanisms that predict generosity in children
University of Chicago developmental neuroscientists have found specific brain markers that predict generosity in children. Those neural markers appear to be linked to both social and moral evaluation processes. There are many sorts of prosocial behaviors. Although young children are natural helpers, their perspective on sharing resources tends to be selfish.

Life Sciences - Health - 18.12.2014
’Hairclip’ protein mechanism explained
New study describes a fundamental mechanism regulating a protein's shape and function, with potential applications in biotechnology and drug development. The power of such multi-disciplinary studies is that we can begin to answer questions that neither of us could do alone Jane Clarke New research has identified a fundamental mechanism for controlling protein function.

Life Sciences - Health - 18.12.2014
Machine learning reveals unexpected genetic roots of cancers, autism and other disorders
Researchers from engineering, biology and medicine teach computers to 'read the human genome' and rate likelihood of mutations causing disease, opening vast new possibilities for medicine In the decade since the genome was sequenced in 2003, scientists, engineers and doctors have struggled to answer an all-consuming question: Which DNA mutations cause disease? A new computational technique developed at the University of Toronto may now be able to tell us.

Health - Environment - 18.12.2014
On the environmental trail of food pathogens
Tracking one of the deadliest food contamination organisms through produce farms and natural environments alike, Cornell microbiologists are showing how to use big datasets to predict where the next outbreak could start. Be careful where you drink One of the natural-environment sites for the listeria survey was Connecticut Hill Wildlife Management area, the 11,645-acre, mostly evergreen forest that is many Ithacans' favorite place for hiking, bird watching, skiing, horseback riding, primitive camping, fishing and other nonmotorized activities.

Astronomy / Space Science - 18.12.2014
Kepler Proves It Can Still Find Planets
To paraphrase Mark Twain, the report of the Kepler spacecraft's death was greatly exaggerated. Despite a malfunction that ended its primary mission in May 2013, Kepler is still alive and working. The evidence comes from the discovery of a new super-Earth using data collected during Kepler's "second life." "Like a phoenix rising from the ashes, Kepler has been reborn and is continuing to make discoveries.

Health - Psychology - 18.12.2014
Expectant fathers experience prenatal hormone changes
ANN ARBOR-Impending fatherhood can lower two hormones-testosterone and estradiol-for men, even before their babies are born, a new University of Michigan study found. Other studies indicate that men's hormones change once they become fathers, and there is some evidence that this is a function of a decline after the child's birth.

Administration - Economics - 18.12.2014
Research is ’world-leading’, major review finds
University of Sussex research is 'world-leading', major review finds The University of Sussex carries out world-leading research that has a positive impact on people's lives, the outcome of a review of research in the UK has revealed today (Thursday 18 December). The results of the Government-commissioned Research Excellence Framework (REF) show that 98 per cent of research activity at Sussex is categorised as 'world-leading' (4*), 'internationally excellent' (3*) or 'internationally recognised' (2*).

Social Sciences - 17.12.2014
Bristol poverty measurement methods go global
17 December 2014 Researchers at the universities of Bristol and Cardiff have shown how the process of defining and measuring poverty in low-income countries can be made more democratic. In a paper published this month in the journal Social Indicators Research , the team's study (funded by the Economic and Social Research Council) demonstrates how methods developed to assess poverty in high-income countries can also be used successfully in low-income countries, where poverty is more deeply entrenched.

Social Sciences - Psychology - 17.12.2014
Stanford psychologists show that altruism is not simply innate
Stanford psychologists show that altruism is not simply innate
By recreating a classic experiment, Stanford psychologists find that altruistic behavior may be governed more by relationships, even brief ones, than instincts. Ever since the concept of altruism was proposed in the 19th century, psychologists have debated whether or not people are born into the world preprogrammed to be nice to others.

Chemistry - Physics - 17.12.2014
Ancient, hydrogen-rich waters discovered deep underground at locations around the world
Finding represents "a quantum change in our understanding" of how much of Earth's crust may be habitable, says world-renowned researcher A team of scientists led by the University of Toronto's Barbara Sherwood Lollar has mapped the location of hydrogen-rich waters found trapped kilometres beneath Earth's surface in rock fractures in Canada, South Africa and Scandinavia.

Health - Life Sciences - 17.12.2014
Lens-free microscope can detect cancer at the cellular level
Aydogan Ozcan Tissue sample image created by a new lens-free microscope developed in the UCLA lab of Aydogan Ozcan. UCLA researchers have developed a lens-free microscope that can be used to detect the presence of cancer or other cell-level abnormalities with the same accuracy as larger and more expensive optical microscopes.