Monday, May 27, 2013

FeedaMail: ScienceDaily: Latest Science News

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New analysis yields improvements in a classic 3-D imaging technique

The first major image quality improvements in the history of a widely used century-old 3-D printing technique have been achieved. The technique, anaglyph printing, utilizes red-and-blue eyewear to transform 2-D images into 3-D in comics, magazines, books, and newspapers.

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Heart failure accelerates male 'menopause'

Heart failure accelerates the aging process and brings on early andropausal syndrome (AS), according to new research. AS, also referred to as male 'menopause', was four times more common in men with heart failure.

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Death highest in heart failure patients admitted in January, on Friday, and overnight

Mortality and length of stay are highest in heart failure patients admitted in January, on Friday, and overnight, according to new research.

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First drug to significantly improve heart failure mortality in over a decade

Coenzyme Q10 decreases all cause mortality by half, according to new results. It is the first drug to improve heart failure mortality in over a decade and should be added to standard treatment, according to experts.

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Newly understood circuits add finesse to nerve signals

An unusual kind of circuit fine-tunes the brain's control over movement and incoming sensory information, and without relying on conventional nerve pathways. The work may provide insight into the design of drugs for autism and movement disorders.

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Understanding the past and predicting the future by looking across space and time

Scientists have validated a fundamental assumption at the very heart of a popular way to predict relationships between complex variables.

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Two volcanoes erupting in Alaska: Scientists are monitoring and providing alerts on Pavlof and Cleveland volcanoes

Two of Alaska's most active volcanoes -- Pavlof and Cleveland -- are currently erupting. At the time of this post, their activity continues at low levels, but energetic explosions could occur without warning. Located close to the western end of the Alaska Peninsula, Pavlof is one of the most active volcanoes in the Aleutian arc, having erupted more than 40 times since the late 1700's.

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Driving and hands-free talking lead to spike in errors

A pilot study shows driving while talking on a hands-free cellular device leads to more driving errors than driving alone.

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Students perform well regardless of reading print or digital books

Students did equally well on a test whether reading from a digital book or a printed one, new research shows.

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Cosmic swirly straws: Galaxies fed by funnels of fuel

Computer simulations of galaxies growing over billions of years have revealed a likely scenario for how they feed: a cosmic version of swirly straws. The results show that cold gas -- fuel for stars -- spirals into the cores of galaxies along filaments, rapidly making its way to their "guts." Once there, the gas is converted into new stars, and the galaxies bulk up in mass.

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Active or 'extremely active' Atlantic hurricane season predicted for 2013

In its 2013 Atlantic hurricane season outlook issued today, NOAA's Climate Prediction Center is forecasting an active or extremely active season this year.

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Facial-recognition technology proves its mettle

In a study that evaluated some of the latest in automatic facial recognition technology, researchers were able to quickly identify one of the Boston Marathon bombing suspects from law enforcement video, an experiment that demonstrated the value of such technology.

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Perfect skin: More touchy-feely robots

Robots could become a lot more 'sensitive' thanks to new artificial skins and sensor technologies. Leading to better robotic platforms that could one day be used in industry, hospitals and even at home.

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Research effort deep underground could sort out cosmic-scale mysteries

Scientists have begun delivery of germanium-76 detectors to an underground laboratory in South Dakota in a team research effort that might explain the puzzling imbalance between matter and antimatter generated by the Big Bang.

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How playing surfaces affect athletic performance, injury potential

Students have been jumping up and down for weeks on a variety of playing surfaces in a study to evaluate how each affects athletic performance and injury potential.

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The better to see you with: Scientists build record-setting metamaterial flat lens

For the first time, scientists working at the National Institute of Standards and Technology (NIST) have demonstrated a new type of lens that bends and focuses ultraviolet (UV) light in such an unusual way that it can create ghostly, 3D images of objects that float in free space. The easy-to-build lens could lead to improved photolithography, nanoscale manipulation and manufacturing, and even high-resolution three-dimensional imaging, as well as a number of as-yet-unimagined applications in a diverse range of fields.

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Modulating the immune system to combat metastatic cancer

Researchers have found that regulatory T cells that infiltrate tumors express proteins that can be targeted with therapeutic antibodies.

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Youth with type 2 diabetes at much higher risk for heart, kidney disease

The news about youth and diabetes keeps getting worse. The latest data shows that children with type 2 diabetes are at high risk to develop heart, kidney and eye problems faster and at a higher rate than adults with diabetes.

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Promising strategy to help vaccines outsmart HIV

New research highlights an ingenious method to ensure the body effectively reacts when infected with the highly-evasive HIV virus that causes AIDS. The method involves the use of cytomegalovirus as a vector to help a vaccine better instruct T cells how to identify and fight the virus.

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New fluorescent tools for cancer diagnosis

Researchers have developed a multicolor fluorescence labeling method that can be used to visualize miRNAs in tissue sections, such as those recovered from biopsies.

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Hormone levels may provide key to understanding psychological disorders in women

Women at a particular stage in their monthly menstrual cycle may be more vulnerable to some of the psychological side-effects associated with stressful experiences, according to a study from UCL.

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Monkey teeth help reveal Neanderthal weaning

Most modern human mothers wean their babies much earlier than our closest primate relatives. But what about our extinct relatives, the Neanderthals? A team of U.S. and Australian researchers reports that they can now use fossil teeth to calculate when a Neanderthal baby was weaned. The new technique is based in part on knowledge gained from studies of teeth from human infants and from monkeys.

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Proteins in migration: New animal model provides important clues on mechanisms of Parkinson's disease

Scientists have developed a novel experimental model that reproduces for the first time this pattern of alpha-synuclein brain spreading and provides important clues on the mechanisms underlying this pathological process. They triggered the production of human alpha-synuclein in the lower rat brain and were able to trace the spreading of this protein toward higher brain regions. The new experimental paradigm could promote the development of ways to halt or slow down disease development in humans.

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Hormone replacement therapy: British Menopause Society and Women's Health Concern release updated guidelines

The British Menopause Society and Women's Health Concern have released updated guidelines on Hormone Replacement Therapy (HRT) to provide clarity around the role of HRT, the benefits and the risks. The new guidelines appear in the society's flagship title, Menopause International, published by SAGE.

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Cause of infantile amnesia revealed: New neuron formation could increase capacity for new learning, at expense of old memories

New research presented today shows that formation of new neurons in the hippocampus -- a brain region known for its importance in learning and remembering -- could cause forgetting of old memories by causing a reorganization of existing brain circuits. Researchers argue this reorganization could have the positive effect of clearing old memories, reducing interference and thereby increasing capacity for new learning.

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Young children who miss well-child visits are more likely to be hospitalized

Young children who missed more than half of recommended well-child visits had up to twice the risk of hospitalization compared to children who attended most of their visits, according to a new study.

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Detection of the cosmic gamma ray horizon: Measures all the light in the universe since the Big Bang

Radiation from all galaxies that ever existed suffuses the universe with a diffuse extragalactic background light (EBL). Measuring the EBL is as fundamental to cosmology as measuring heat from the Big Bang (cosmic microwave background) at radio wavelengths. Researchers describe the best measurement yet of the evolution of the EBL over the past 5 billion years, based on observations from radio waves to gamma rays from NASA spacecraft and ground-based telescopes.

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New recommendations for management of high blood glucose in hospitalized patients

High blood glucose is associated with poor outcomes in hospitalized patients, and use of intensive insulin therapy (IIT) to control hyperglycemia is a common practice in hospitals. But the recent evidence does not show a consistent benefit and even shows harms associated with the use of IIT, according to the American College of Physicians.

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New method for predicting cancer virulence

A new way of tackling cancer and predicting tumor virulence are has been reported by a team of researchers. The scientists have shown that, in all cancers, an aberrant activation of numerous genes specific to other tissues occurs. For example, in lung cancers, the tumorous cells express genes specific to the production of spermatozoids, which should be silent.

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Discovery of how a key enzyme of the spliceosome exerts its controlling function

To sustain life, processes in biological cells have to be strictly controlled both in time and in space. Researchers have elucidated a previously unknown mechanism that regulates one of the essential processes accompanying gene expression in higher organisms. In humans, errors in this control mechanism can lead to blindness.

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Expedition to study ancient continental breakup west of Spain

An international team of scientists has embarked on a shipboard expedition to study how the Earth's crust was pulled apart in an area beneath the Atlantic Ocean off the coast of Spain.

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Help at hand for schizophrenics

How can healthy people who hear voices help schizophrenics? Finding the answer for this is at the center of research conducted by a group of scientists in Norway.

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Scientists put bowel cancer under the microscope

Researchers have begun a two-year study which could help prolong the lives of people with colorectal tumors.

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Researchers design photobioreactor to produce biofuel from algae

Researchers have patented a new device that allows more efficiently to cultivate microalgae and can be used as raw material for biofuel or for other valuable substances in the agri-food or pharmaceutical industry.

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Nano-needles for cells: Tiny needles can force medicine into cells, even when they resist taking it

Nano-sized needles developed by researchers in Norway can force medicine into cells, even when the cell membranes offer resistance. The needles will make it easier to study the effects of medicines on cells.

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Immune cell activation in multiple sclerosis: New indicator molecules visualize activation of auto-aggressive T cells

Biological processes are generally based on events at the molecular and cellular level. To understand what happens in the course of infections, diseases or normal bodily functions, scientists would need to examine individual cells and their activity directly in the tissue. The development of new microscopes and fluorescent dyes in recent years has brought this scientific dream tantalizingly close. Scientists from the Max Planck Institute of Neurobiology in Martinsried have now presented two studies introducing new indicator molecules which can visualize the activation of T cells. Their findings provide new insight into the role of these cells in the autoimmune disease multiple sclerosis (MS). The new indicators are set to be an important tool in the study of other immune reactions as well.

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Why early human ancestors took to two feet

A new study by archaeologists challenges evolutionary theories behind the development of our earliest ancestors from tree dwelling quadrupeds to upright bipeds capable of walking and scrambling.

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New insights contradict promising Alzheimer's research

Approximately a year ago, the journal Science published an article about bexarotene as a potential Alzheimer's drug -- a significant breakthrough and an important starting point for further Alzheimer's research. Now other researchers have tested this candidate drug in various Alzheimer's animal test models. Their results were different, as were those of two American study groups. Therefore, they have recommended that bexarotene should not be tested on patients.

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A new strategy required in the search for Alzheimer's drugs?

In the search for medication against Alzheimer's disease, scientists have focused on -- among other factors -- drugs that can break down Amyloid beta (A-beta). After all, it is the accumulation of A-beta that causes the known plaques in the brains of Alzheimer's patients. The starting point for the formation of A-beta is APP.

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New microsphere-based methods for detecting HIV antibodies

Detection of HIV antibodies is used to diagnose HIV infection and monitor trials of experimental HIV/AIDS vaccines. New, more sensitive detection systems being developed use microspheres to capture HIV antibodies and can measure even small amounts of multiple antibodies at one time.

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Researchers search for best feed for the 'king' of the rivers

The red mahseer is highly sought after by anglers and high end restaurants. Breeding them may be a bit easier now that researchers in Malaysia have found the best feed combination.

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Infantile myofibromatosis: First drug targets in childhood genetic tumor disorder

Two mutations central to the development of infantile myofibromatosis (IM) -- a disorder characterized by multiple tumors involving the skin, bone, and soft tissue—may provide new therapeutic targets, according to researchers.

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More than one in five parents believe they have little influence in preventing teens from using illicit substances

A new report indicates that more than one in five parents of teens aged 12 to 17 (22.3 percent) think what they say has little influence on whether or not their child uses illicit substances, tobacco, or alcohol. This report by the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA) also shows one in ten parents said they did not talk to their teens about the dangers of using tobacco, alcohol, or other drugs -- even though 67.6 percent of these parents who had not spoken to their children thought they would influence whether their child uses drugs if they spoke to them.

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Research aims for insecticide that targets malaria mosquitoes

A team of scientists is working toward an insecticide that would target malaria-carrying mosquitoes but do no harm to other organisms.

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Observation of skyrmions (magnetic vortex structures) in a ferromagnet with centrosymmetry

Researchers using Lorentz electron microscopy have shown that magnetic skyrmions are spontaneously formed as nanomagnetic clusters in a ferromagnetic manganese oxide with centrosymmetry.

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Formation of functionalized nanowires by control of self-assembly using multiple modified amyloid peptides

Researchers in Japan and US have developed a new technique for efficiently creating functionalized nanowires for the first time ever.

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New coating method accelerates bonding with bone three times faster

Researchers in Japan have developed a coating method which accelerates bonding with bone by three times.

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Statin use is linked to increased risk of developing diabetes, warn researchers

Treatment with high potency statins (especially atorvastatin and simvastatin) may increase the risk of developing diabetes, suggests a new article.

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Scientists make breast cancer advance that turns previous thinking on its head

Scientists have made an advance in breast cancer research which shows how some enzymes released by cancerous cells could have a protective function.

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Consumers largely underestimating calorie content of fast food

People eating at fast food restaurants largely underestimate the calorie content of meals, especially large ones, according to a new article.

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Future doctors unaware of their obesity bias

Two out of five medical students have an unconscious bias against obese people, according to a new study.

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King Richard III found in 'untidy lozenge-shaped grave'

A new article on the archaeology of the Search for Richard III reveals for the first time specific details of the grave dug for King Richard III and discovered under a car park in Leicester.

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It's not your imagination: Memory gets muddled at menopause

Don't doubt it when a woman harried by hot flashes says she's having a hard time remembering things. A new study published online in Menopause, the journal of the North American Menopause Society, helps confirm with objective tests that what these women say about their memory is true.

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Heart healthy lifestyle may cut kidney disease patients' risk of kidney failure

Compared with kidney disease patients who had zero or one heart healthy lifestyle component in the ideal range, those with two, three, and four ideal factors had progressively lower risks for kidney failure over four years. No kidney disease patients with five to seven ideal factors developed kidney failure. Patients' risk of dying during the study followed a similar trend.

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Research identifies a way to make cancer cells more responsive to chemotherapy

Breast cancer characterized as "triple negative" carries a poor prognosis, with limited treatment options. In some cases, chemotherapy doesn't kill the cancer cells the way it's supposed to. New research explains why some cancer cells don't respond to chemotherapy, and identifies a mechanism to rectify that.

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Noninvasive detection, diagnosis of oral cancer

More effective detection and diagnosis of oral cancer could result from an advance in noninvasive imaging of epithelial tissue. The research is thought to have the potential to change the way doctors look for precancerous and cancerous areas in a patient's mouth.

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Advanced biological computer developed

Using only biomolecules, scientists have developed and constructed an advanced biological transducer, a computing machine capable of manipulating genetic codes, and using the output as new input for subsequent computations.

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Atomic-scale investigations solve key puzzle of LED efficiency

From the high-resolution glow of flat screen televisions to light bulbs that last for years, light-emitting diodes (LEDs) continue to transform technology. The celebrated efficiency and versatility of LEDs -- and other solid-state technologies including laser diodes and solar photovoltaics -- make them increasingly popular. Their full potential, however, remains untapped, in part because the semiconductor alloys that make these devices work continue to puzzle scientists. Scientists have now used electron microscopy imaging techniques to settle a solid-state controversy and raise new experimental possibilities.

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Technique to detect breast cancer in urine developed

Medical researchers have developed a new screening method that uses urinalysis to diagnose breast cancer – and determine its severity – before it could be detected with a mammogram.

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Genomic analysis lends insight to prostate cancer

Researchers have used next generation genomic analysis to determine that some of the more aggressive prostate cancer tumors have similar genetic origins, which may help in predicting cancer progression.

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Researchers identify genetic suspects in sporadic Lou Gehrig's disease

Researchers have identified mutations in several new genes that might be associated with the development of spontaneously occurring cases of the neurodegenerative disease known as amyotrophic lateral sclerosis, or ALS.

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How do we locate the spatial position of sounds? Mechanism responsible for creation of giant synapses discovered

Humans and most mammals can determine the spatial origin of sounds with remarkable acuity. To accomplish this small daily miracle, the brain has developed a circuit that's rapid enough to detect the tiny lag that occurs between the moment the auditory information reaches one of our ears, and the moment it reaches the other. The mastermind of this circuit is the "Calyx of Held." Scientists have revealed the role that a certain protein plays in initiating the growth of these giant synapses.

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Climate researchers discover new rhythm for El Niño

Why El Niño peaks around Christmas and ends quickly by February to April has been a long-standing mystery. The answer lies in an interaction between El Niño and the annual cycle that results in an unusual tropical Pacific wind pattern with a period of 15 months, according to scientists.

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Preterm birth affects ability to solve complex cognitive tasks: Too early to learn

Being born preterm goes hand in hand with an increased risk for neuro-cognitive deficits. Psychologists from the Ruhr-Universität Bochum and the University of Warwick, UK have investigated the relation between the duration of pregnancy and cognitive abilities under varying work load conditions.

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