New 'comb' detects terahertz waves with extreme precision

Science Daily - Wed, 22/04/2015 - 2:44pm
Chemists have created a device that generates and detects terahertz waves over a wide spectral range with extreme precision, allowing it to be used as an unparalleled tool for measuring terahertz waves.
Categories: Science

'Holey' graphene for energy storage: Charged holes in graphene increase energy storage capacity

Science Daily - Wed, 22/04/2015 - 2:44pm
Engineers have discovered a method to increase the amount of electric charge that can be stored in graphene, a two-dimensional form of carbon. The research may provide a better understanding of how to improve the energy storage ability of capacitors for potential applications in cars, wind turbines, and solar power.
Categories: Science

Electron spin brings order to high entropy alloys

Science Daily - Wed, 22/04/2015 - 2:44pm
Researchers have discovered that electron spin brings a previously unknown degree of order to the high entropy alloy nickel iron chromium cobalt -- and may play a role in giving the alloy its desirable properties.
Categories: Science

Natural reparative capacity of teeth elucidated

Science Daily - Wed, 22/04/2015 - 2:44pm
Researchers have taken an important step in research on stem cells and dental repair by isolating dental stem cell lines and describing the natural mechanism by which they repair lesions in the teeth. This fundamental discovery will make it possible to initiate unprecedented therapeutic strategies to mobilize the resident dental stem cells and magnify their natural capacity for repair.
Categories: Science

Millimeter-sized stones formed our planet

Science Daily - Wed, 22/04/2015 - 2:44pm
Researchers can now explain how asteroids are formed. Our own planet also has its origins in the same process, a cosmic ocean of millimeter-sized particles that orbited the young sun, according to new research.
Categories: Science

Large heads, narrow pelvises and difficult childbirth in humans: Adaptations in human morphology explain why

Science Daily - Wed, 22/04/2015 - 2:42pm
The size of the neonatal skull is large relative to the dimensions of the birth canal in the female pelvis. This is the reason why childbirth is slower and more difficult in humans than in most other primates. Scientists have identified adaptations in the morphology of the human body, which were unknown so far, a new study shows.
Categories: Science

Clinical studies show 'CHORI-bar' results in broad scale health improvements

Science Daily - Wed, 22/04/2015 - 2:42pm
A fruit-based micronutrient and fiber-dense supplement bar was shown in clinical trials to improve metabolism in overweight/obese otherwise healthy adults in ways that are consistent with reduced risk of type 2 diabetes and cardiovascular disease. Consumption of the bar for two months also reduced chronic inflammation, and initiated a reduction in weight and waist circumference.
Categories: Science

Scientists watch living taste cells in action

Science Daily - Wed, 22/04/2015 - 2:42pm
Scientists have for the first time captured live images of the process of taste sensation on the tongue. The international team imaged single cells on the tongue of a mouse with a specially designed microscope system.
Categories: Science

Obama’s Goals For NASA - How’s Progress? | Video

Space.com - Wed, 22/04/2015 - 2:42pm
In 2010, President Obama set forth several initiatives for America’s space agency. This 2015 NASA video attempts to report on the status of those projects.
Categories: Science

Polarization in US Congress is worsening, and it stifles policy innovation

Science Daily - Wed, 22/04/2015 - 2:42pm
A new study confirms quantitatively that partisan disagreements in the US Congress are worsening and that polarization is harmful to policy innovation.
Categories: Science

Brain activity tested to identify cybersecurity threats

Science Daily - Wed, 22/04/2015 - 2:42pm
In a first-of-its-kind study, researchers tested brain activity to better understand employees who pose a risk to cybersecurity.
Categories: Science

Breast arterial calcification strong predictor of coronary artery calcification

Science Daily - Wed, 22/04/2015 - 2:42pm
In a study to ascertain whether breast arterial calcification (BAC) detected with digital mammography correlates to chest CT findings of coronary artery calcification (CAC), researchers have discovered a striking relationship between the two factors. In 76 percent of the study cohort, women who had a BAC score of 0 also had a CAC score of 0. As the BAC score increases, there is a concomitant increase in the CAC score.
Categories: Science

Pseudoparticles travel through photoactive material

Science Daily - Wed, 22/04/2015 - 2:41pm
Researchers have unveiled an important step in the conversion of light into storable energy: They have studied the formation of so-called polarons in zinc oxide. The pseudoparticles travel through the photoactive material until they are converted into electrical or chemical energy at an interface.
Categories: Science

Are gas hydrates a source of environmentally friendly energy?

Science Daily - Wed, 22/04/2015 - 2:41pm
Gas hydrate is also known as the ice that burns. And all that burns releases energy. And a lot of energy is stored in hydrates and there are gigatons of it stored in the sediments of the oceans. 
Categories: Science

How much of the Amazon rainforest would it take to print the Internet?

Science Daily - Wed, 22/04/2015 - 2:41pm
Today (22 April) is Earth Day 2015 where worldwide events are held to demonstrate support for environmental protection. Student study suggests that 0.002% of the Amazon rainforest, which spans 5.5 million square kilometers and houses approximately 400 billion trees, would be required to print the non-explicit Internet.
Categories: Science

Cirrhosis deaths drop 41 percent from 2002 to 2012

Science Daily - Wed, 22/04/2015 - 2:40pm
Dramatic improvements have been found in the care of patients with cirrhosis and liver failure, experts report. They continue to recommend improved treatment strategies for patients with cirrhosis and concurrent bacterial infections.
Categories: Science

Invasion of the earthworms, mapped and analyzed

Science Daily - Wed, 22/04/2015 - 2:40pm
In their efforts to forecast the spread of an invasive worm species, researchers are bringing a new weapon to bear: statistical analysis.
Categories: Science

Strange Volcanos On Weird Worlds Hint At Origins | Video

Space.com - Wed, 22/04/2015 - 2:24pm
Super-cold nitrogen geysers on Neptune’s moon Triton, and hot sulfurous plumes high above Jupiter’s moon Io, reveal how these fascinating worlds work. Watch ‘Secrets of the Universe’ on Hulu. http://www.hulu.com/secrets-of-the-universe
Categories: Science

How breast milk protects against severe intestinal disease in preemies

Science Daily - Wed, 22/04/2015 - 2:22pm
The immune-boosting properties of breast milk have long been known. Now a team of scientists says experiments in mice reveal how breast milk works to ward off the development of necrotizing enterocolitis (NEC), a devastating intestinal disorder.
Categories: Science

MIT's New Tabletop Particle Detector Sees Individual Electrons

Slashdot - Wed, 22/04/2015 - 2:22pm
An anonymous reader writes: Scientists at MIT have created a small, tabletop particle detector capable of identifying individual electrons within a cloud of radioactive gas. "As the radioactive krypton gas decays, it emits electrons that vibrate at a baseline frequency before petering out; this frequency spikes again whenever an electron hits an atom of radioactive gas. As an electron ping-pongs against multiple atoms in the detector, its energy appears to jump in a step-like pattern." The researchers used the detector to record the activity of 100,000 different electrons within the gas (abstract). They're hoping that with enough data about how the electrons bounce around, they'll be able to pinpoint the amount of energy released during these krypton atom decay events. Once they know how much energy is released, they can figure out the mass of a neutrino, which is also emitted during the decay.

Read more of this story at Slashdot.

Categories: Science