Latest Science News -- ScienceDaily
New finding of particle physics may help to explain the absence of antimatter
Tue, 13 Nov 2018 11:04:08 EST
With the help of computer simulations, particle physics researchers may be able to explain why there is more matter than antimatter in the Universe. The simulations offer a new way of examining conditions after the Big Bang, and could provide answers to some fundamental questions in particle physics.
Business as usual for Antarctic krill despite ocean acidification
Tue, 13 Nov 2018 08:09:30 EST
A new study has found that Antarctic krill are resilient to the increasing acidification of the ocean as it absorbs more C02 from the atmosphere due to anthropogenic carbon emissions. Krill are one of the most abundant organisms on Earth and a critical part of the Southern Ocean marine ecosystem.
Climate change damaging male fertility
Tue, 13 Nov 2018 08:09:27 EST
Climate change could pose a threat to male fertility -- according to new research. New findings reveal that heatwaves damage sperm in insects - with negative impacts for fertility across generations. The research team say that male infertility during heatwaves could help to explain why climate change is having such an impact on species populations, including climate-related extinctions in recent years.
Treating obesity: One size does not fit all
Tue, 13 Nov 2018 08:09:23 EST
Understanding the very different characteristics of subgroups of obese patients may hold the key to devising more effective treatments and interventions, new research found.
Rare fossil bird deepens mystery of avian extinctions
Tue, 13 Nov 2018 08:09:08 EST
Today's birds descend from a small number of bird species living before the dinosaur extinction. Some of the birds that went extinct, the enantiornithines, were actually more common than and out-competed modern bird ancestors. Analysis of a newly described fossil, the most complete known from the Americas, demonstrates, too, that the enantiornithines were as agile and strong in flight as the ancestors of modern birds. Why, then, did enantiornithines die out and modern birds flourish?
Purple bacteria 'batteries' turn sewage into clean energy
Tue, 13 Nov 2018 08:09:03 EST
Purple phototrophic bacteria -- which can store energy from light -- when supplied with an electric current can recover near to 100 percent of carbon from any type of organic waste, while generating hydrogen gas for use as fuel.
Nitrogen fixation in ambient conditions
Mon, 12 Nov 2018 19:19:08 EST
Scientists have developed a uranium-based complex that allows nitrogen fixation reactions to take place in ambient conditions. The work lays the foundation to develop new processes for synthesizing nitrogen products like cyanamide.
Planetary boundaries for antibiotic and pesticide resistance identified
Mon, 12 Nov 2018 19:19:05 EST
Researchers have now published the first estimates of antibiotic and pesticide 'planetary boundaries.' The researchers suggest that if resistance to antibiotics and pesticides goes beyond these boundaries, societies risk large-scale health and agricultural crises. The results indicate one group of bacteria has passed a boundary.
Study opens route to ultra-low-power microchips
Mon, 12 Nov 2018 19:18:58 EST
Researchers have developed a new way of controlling magnetism in materials, which could lead to new low-power technologies for memory, computing, and sensing devices.
Insufficient sleep in children is associated with poor diet, obesity and more screen time
Mon, 12 Nov 2018 19:18:14 EST
A new study conducted among more than 177,000 students suggests that insufficient sleep duration is associated with an unhealthy lifestyle profile among children and adolescents.
Alpine ice shows three-fold increase in atmospheric iodine
Mon, 12 Nov 2018 19:18:10 EST
Analysis of iodine trapped in Alpine ice has shown that levels of atmospheric iodine have tripled over the past century, which partially offsets human-driven increases in the air pollutant, ozone.
Small molecules: From beaker to solved 3D structure in minutes
Mon, 12 Nov 2018 19:18:07 EST
A new method for learning the structures of small molecules, such as hormones, is 'like science fiction.'
New framework pushes the limits of high-performance computing
Mon, 12 Nov 2018 19:17:23 EST
Researchers found a way to give high-performance computing data systems the flexibility to thrive with a first-of-its-kind framework called BespoKV, perhaps helping to one day achieve the HPC goal of performing at the exascale, or a billion billion calculations per second.
Escape responses of coral reef fish obey simple behavioral rules
Mon, 12 Nov 2018 19:17:15 EST
The escape response to evade perceived threats is a fundamental behavior seen throughout the animal kingdom, and laboratory studies have identified specialized neural circuits that control this behavior. To understand how these neural circuits operate in complex natural settings, researchers recorded and analyzed escape responses in wild coral reef fish. Their results show how a sequence of well-defined decision rules generates evasion behavior in a wide range of coral reef fish species.
How plants evolved to make ants their servants
Mon, 12 Nov 2018 19:17:01 EST
Plants have evolved ways to make ants defend them from attacks and spread their seeds, and this new study shows how it happened. In a new study breaking down the genetic history of 1,700 species of ants and 10,000 plant genera, researchers found that the long history of ant and plant co-evolution started with ants foraging on plants and plants responding by evolving ant-friendly traits.
Primates of the Caribbean: Ancient DNA reveals history of mystery monkey
Mon, 12 Nov 2018 19:16:45 EST
Analysis of ancient DNA of a mysterious extinct monkey named Xenothrix -- which displays bizarre body characteristics very different to any living monkey -- has revealed that it was in fact most closely related to South America's titi monkeys (Callicebinae). Having made their way overwater to Jamaica, probably on floating vegetation, their bones reveal they subsequently underwent remarkable evolutionary change.
Sudden cardiac arrest: New findings
Mon, 12 Nov 2018 14:27:05 EST
Scientists have recently completed three critical research studies aimed at better understanding sudden cardiac arrest.
Streamside forests store tons of carbon
Mon, 12 Nov 2018 13:36:02 EST
Researchers have compiled carbon storage data from 117 publications, reports, and other data sets on streamside forests around the world. Researchers found that the average amount of carbon stored in mature streamside forest rivals the highest estimates for any other forest type around the world, such as tropical or boreal forests.
How pneumococci challenge our immune system
Mon, 12 Nov 2018 13:16:44 EST
Pneumococci are the most common cause of respiratory tract infections, such as otitis and sinusitis, as well as of severe infections like pneumonia and meningitis. A new study shows how the bacteria can inhibit immune cell reaction and survive inside cells to give rise to pneumonia.
Half moons and pinch points: Same physics, different energy
Mon, 12 Nov 2018 13:16:38 EST
For the first time, physicists present a unified theory explaining two characteristic features of frustrated magnets and why they're often seen together.