Saturday, February 4, 2017

ScienceDaily: Top News


Posted: 03 Feb 2017 12:16 PM PST
An anticancer agent in development promotes regeneration of damaged heart muscle -- an unexpected research finding that may help prevent congestive heart failure in the future.
    
Posted: 03 Feb 2017 12:16 PM PST
Researchers have identified a genomic mutation that causes physical abnormalities and developmental delays in children. Upon analyzing the genome of a six-year-old boy, the scientists identified a novel mutation that affects a protein known as CASK, which is key to brain development and the signals transmitted by brain cells, or neurons.
    
Posted: 03 Feb 2017 11:00 AM PST
An article gives a rare look at brain surgery with the patient alert and awake. It's not routine to keep patients awake, but in this case, a small section of the tumor was in the area of the brain for speech function.
    
Posted: 03 Feb 2017 11:00 AM PST
A faster way to detect the bacteria causing patients to become sick has now been developed, giving physicians a better chance at saving lives.
    
Posted: 03 Feb 2017 10:56 AM PST
The addition of specific molecules to 'trap' charge carriers in semiconducting polymers proves to be a powerful method of mastering the materials' electrical properties. Now, materials researchers have discovered a way to control the electrical properties of organic semiconductors within the same material.
    
Posted: 03 Feb 2017 10:55 AM PST
New research has shown how normally helpful brain cells can turn rogue and kill off other brain cells following injury or disease.
    
Posted: 03 Feb 2017 10:51 AM PST
In studying a cousin of the bacterium that causes tuberculosis, scientists have drawn a molecular map of the target for rifampicin, a common antibiotic. They are now using it in an effort to combat multi-resistant tuberculosis, for which existing treatments don't work.
    
Posted: 03 Feb 2017 10:51 AM PST
Researchers reveal an optimal strategy for foragers -- animals searching for berries in the woods or prospectors seeking oil in the desert. The statistical model builds on previous foraging theories by accounting for trajectory and resources consumed. The optimal foraging strategy? Search the current foraging ground for a time that equals the time it would take to pull up stakes and move to a new territory.
    
Posted: 03 Feb 2017 10:51 AM PST
Malnutrition and stress negatively affect muscle stem cells in the fetus, and this could have life-long consequences, outlines a new report.
    
Posted: 03 Feb 2017 10:50 AM PST
The Calabash Nebula -- which has the technical name OH 231.8+04.2 -- is a spectacular example of the death of a low-mass star like the sun.
    
Posted: 03 Feb 2017 08:57 AM PST
Researchers recently worked with The Boeing Company to establish a new nondestructive evaluation laboratory that uses millimeter wave technology to improve the detection of potential flaws in coatings, surfaces and materials.
    
Posted: 03 Feb 2017 08:56 AM PST
Non-invasive cell free DNA prenatal testing can be effectively and appropriately offered to all pregnant women, regardless of maternal age or risk factors, through primary obstetrical care providers, researchers have demonstrated.
    
Posted: 03 Feb 2017 08:56 AM PST
Quaking aspen across the American West are stressed by a combination of sources, including drought, hungry herbivores, fire suppression and development. Researchers report passive and active treatments, including fencing, burning, shrub removal and selective overstory cutting, show promise in restoring Utah's massive Pando clone at experimental scales.
    
Posted: 03 Feb 2017 08:03 AM PST
Researchers have investigated what x-rays in matter really do and identified a new mechanism of producing low-energy free electrons. Since the low-energy electrons cause damage to the matter, the identified process might be important in understanding and designing radiation treatment of illnesses.
    
Posted: 03 Feb 2017 08:02 AM PST
Traffic modeling has been of interest to mathematicians since the 1950s. Research in the area has only grown as road traffic control presents an ever-increasing problem. In a new paper, authors address the problem of computing optimal traffic light settings for urban road intersections by applying traffic flow conservation laws on networks.
    
Posted: 03 Feb 2017 08:02 AM PST
Scientists have determined ecologically valuable areas within China. The country plans to protect these areas as part of an ecological initiative.
    
Posted: 03 Feb 2017 08:01 AM PST
World-first research on the Great Barrier Reef has shown how 'weed-like' algae will kill vital coral because of increased carbon dioxide concentrations in the atmosphere.
    
Posted: 03 Feb 2017 08:01 AM PST
Some 470 million years ago, during the middle part of the geological period known as the Ordovician, an asteroid collision took place somewhere between Mars and Jupiter. The collision caused an explosion that sent a cascade of meteorites towards Earth.
    
Posted: 03 Feb 2017 08:01 AM PST
The benchmark used by the Office for Nuclear Regulation for judging how much should be spent on nuclear safety has no basis in evidence and places insufficient value on human life, suggests a new paper. The review suggests it may need to be 10 times higher -- between £16 million and £22 million per life saved.
    
Posted: 03 Feb 2017 08:01 AM PST
In a new study, researchers are learning more about how ribosome chaperones work, showing that one particular chaperone binds to its protein client in a very specific, tight manner, almost like a glove fitting a hand.
    
Posted: 03 Feb 2017 08:01 AM PST
Chemists have published a different method, using enzymes derived from nature, that generates ammonia at room temperature. As a bonus, the reaction generates a small electrical current.
    
Posted: 03 Feb 2017 07:35 AM PST
Researchers working with magnetic nanoparticles approached computational scientists to help solve a unique problem: to model magnetism at the atomic level using experimental data from a real nanoparticle.
    
Posted: 03 Feb 2017 07:34 AM PST
Does the brain create additional synapses from the cortical neurons to the new granule cells, or do some cortical neurons transfer connections from mature granule cells to the new granule cells? Researchers have found that the connections are transferred, without adding to the number of synapses.
    
Posted: 03 Feb 2017 07:34 AM PST
Elevated sodium content in the skin correlates closely with left ventricular hypertrophy in patients with chronic kidney disease, report researchers.
    
Posted: 03 Feb 2017 07:34 AM PST
Doctor visits can be a challenge for patients with autism, their families and health care providers. A new report offers several steps providers and families can take to make medical visits more successful. She says that all of them require good communication between the provider and parent before, during and after medical visits.
    
Posted: 03 Feb 2017 07:33 AM PST
Preterm babies given the monoclonal antibody palivizumab to prevent respiratory syncytial virus (RSV) also appear less likely to develop recurrent wheeze, at least until the age of six, according to new research.
    
Posted: 03 Feb 2017 07:31 AM PST
Memory involves the successful flow of neurotransmitters from neuron to neuron. When memory breaks down, researchers know there must be a gap in this flow but currently don't know where to start in terms of bridging it. A new method uses near infrared light to shed light on memory loss conditions.
    
Posted: 03 Feb 2017 07:31 AM PST
Archaeologists are excavating site in the city center of Leicester, England. They have uncovered the largest Roman mosaic pavement found in Leicester in last 30 years, with a possible shrine at the center of the site. These findings provide a glimpse into Roman life in the north-east quarter of the town.
    
Posted: 03 Feb 2017 07:15 AM PST
Researchers are familiar with the functions of MZB cells, but the molecular processes involved in their development remained a mystery until an unrelated test revealed that Taok3 plays an essential role. Using these insights, a research team demonstrated that mice genetically lacking in Taok3 did not develop MZB cells, and are more susceptible to bacterial infection.
    
Posted: 03 Feb 2017 07:15 AM PST
Researchers have devised a rapid screening method to select the most promising nanoparticles, thereby fast-tracking the development of future treatments. In less than a week, they are able to determine whether nanoparticles are compatible or not with the human body -- an analysis that previously required several months of work. This discovery, may well lead to the swift, safe and less expensive development of nanotechnology applied to medicine.
    
Posted: 03 Feb 2017 07:15 AM PST
A new study supports food recommendations that women should avoid consuming large amounts of liquorice during pregnancy. The limit for safe consumption is not known.
    
Posted: 03 Feb 2017 07:15 AM PST
An international research team has now shown that this multifaceted compound can also have an unpleasant side effect. Salicylic acid forms complexes with iron and lab tests showed that the iron limitation strongly promotes formation of biofilms by Staphylococcus aureus. This allows the bacteria to survive and persist in our respiratory tract for longer periods of time which eventually trigger life-threatening infections in immunocompromised persons.
    
Posted: 03 Feb 2017 07:15 AM PST
Transport and residential heating could be responsible for a greater contribution of black carbon in the Russian Arctic compared to gas flaring or power plants, according to new research.
    
Posted: 03 Feb 2017 07:15 AM PST
The number of children one has is emerging as a novel factor that influences the risk for some cardiovascular diseases (CVD), and in some societies in both parents, according to experts.
    
Posted: 03 Feb 2017 07:15 AM PST
Forest-dwelling bird species are disappearing from some of South Africa's indigenous forests, with forest birds in the Eastern Cape being the most affected. A new study showed that the ranges of 28 of South Africa's 57 forest-dwelling bird species were declining, while those of 22 species were increasing and seven remained stable. The findings are based on 25 years of citizen science data collected by the Southern African Bird Atlas Project.
    
Posted: 03 Feb 2017 07:15 AM PST
The How I Feel About My School questionnaire is available to download for free. It uses emoticon-style faces with options of happy, ok or sad. It asks children to rate how they feel in seven situations including on the way to school, in the classroom and in the playground. It is designed to help teachers and others to communicate with very young children on complex emotions.
    
Posted: 03 Feb 2017 07:15 AM PST
A study explored how empathy and other psychological factors affect people's assessments of the facial images of dogs and humans.
    
Posted: 03 Feb 2017 07:15 AM PST
It is like being in a dirty glass jar, unable to reach out and with acquaintances passing by without saying hello. New research paints a merciless picture of life with acquired deaf-blindness.
    
Posted: 03 Feb 2017 07:15 AM PST
When preschoolers spend time around one another, they tend to take on each others' personalities, indicates a new study.
    
Posted: 03 Feb 2017 07:15 AM PST
An important breakthrough has been reached in the development of energy-efficient electronic circuits using transistors based on germanium.
    
Posted: 03 Feb 2017 07:15 AM PST
In a recent study, female fashion models reported high levels of pressure to lose weight, which was associated with higher odds of engaging in unhealthy behaviors to control weight.
    
Posted: 03 Feb 2017 07:15 AM PST
People who overeat during national holidays and national sporting events -- like this weekend's Super Bowl -- are 10 times more likely to need emergency medical attention for food obstruction than any at other time of the year, according to a new study.
    
Posted: 03 Feb 2017 05:51 AM PST
Antibiotics can still kill drug-resistant bacteria if they 'push' hard enough into bacterial cells, finds new research. The study opens up a promising new way of overcoming antibiotic resistance and could help scientists to design even more effective drugs.
    
Posted: 03 Feb 2017 05:51 AM PST
The sticky residue left behind by tobacco smoke led to changes in weight and blood cell count in mice, outlines a new report. These latest findings add to a growing body of evidence that thirdhand smoke exposure may be harmful.
    
Posted: 03 Feb 2017 05:51 AM PST
Couples in which both partners are obese may take from 55 to 59 percent longer to achieve pregnancy, compared to their non-obese counterparts, according to a study.
    
Posted: 03 Feb 2017 05:51 AM PST
While many of us may find the sounds of chewing or breathing off-putting, for some they're unbearable -- and new research has shown their brains are going into overdrive.
    
Posted: 02 Feb 2017 01:30 PM PST
A beam of electrons was first observed to be accelerated with a ‘gradient’ – or energy transfer rate - of 300 MV/m, which is very high for present-day accelerators, in a device rather like a microchip. This was made of silica glass and powered by a commercial laser beam, at the SLAC laboratory in the USA. It opens the way to build a particle accelerator “on a chip” much more cheaply than conventional ones. However, few studies have been done of the all-important quality of the particle beam that can be obtained from such a ‘micro accelerator’.
    
Posted: 02 Feb 2017 01:13 PM PST
Women who have delivered prematurely before 37 weeks have a 40 percent increased risk of developing cardiovascular disease when compared to women who delivered their babies after 37 weeks, researchers have found. Women who delivered earlier, before 32 weeks, had double the risk of CVD.
    
Posted: 02 Feb 2017 11:20 AM PST
A pacemaker the size of a nickel can now be implanted in patients, report experts. When a lower heart rate is present, the heart is unable to pump enough oxygen-rich blood to the body during normal activity or exercise. Pacemakers are the most common way to treat bradycardia to help restore the heart's normal rhythm and relieve symptoms by sending electrical impulses to the heart to increase the heart rate.
    

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