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Current Gamma Rays News and Events, Gamma Rays News Articles.
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Computer graphics: Less computing time for sand
Computer graphics today can produce amazingly photorealistic images. Many motives, however, require very long computation times. Researchers of KIT, Disney Research, Zurich, and Cornell University have now developed a process, by means of which granular objects made of e.g. sand, snow or sugar can be computed more quickly. It was presented recently at the renowned ACM SIGGRAPH 2015 International Conference for Computer Graphics in Los Angeles. (2015-09-04)

First global antineutrino emission map highlights Earth's energy budget
A team of geologists and physicists has generated the world's first global map of antineutrino emissions. The map, published online in the journal Nature Scientific Reports on Sept. 1, 2015, provides an important baseline image of the energy budget of Earth's interior and could help scientists monitor new and existing human-made sources of radiation. (2015-09-01)

Team harnesses intense X-ray beam, observes unusual phenomenon for the first time
Physicists led by Fuchs used an X-ray free-electron laser -- one of two in the world -- to induce two X-ray photons to simultaneously collide with an atom, converting them into a single, higher-energy photon. (2015-08-31)

Mammary gland is shaped by adaptive immune system during development
UCSF researchers have discovered that the adaptive immune system plays an active role in guiding the normal development of mammary glands, the only organs that develop predominantly after birth, beginning at puberty. (2015-08-27)

Fertilization discovery: Do sperm wield tiny harpoons?
Could the sperm harpoon the egg to facilitate fertilization? That's the intriguing possibility raised by the University of Virginia School of Medicine's discovery that a protein within the head of the sperm forms spiky filaments, potentially used to lash together the sperm and its target. (2015-08-26)

How zebrafish rebuild the skeleton of amputated fins
Researchers from the University of Bayreuth uncover mechanisms that allow bone-forming cells to regenerate a correctly shaped new fin skeleton. (2015-08-24)

Weak doses of radiation prolong life of female flies, scientists find
Scientists at MIPT have revealed that weak doses of gamma radiation prolong the life of drosophila flies (fruit flies), and that the effect is stronger in females than in males. These findings could reveal the genes that enable the prolongation of life and in the future lead to the creation of a means to prevent aging in humans. The results of their study can be found in an article recently published in the prestigious scientific journal PLOS ONE. (2015-08-21)

Detection of gamma rays from a newly discovered dwarf galaxy may point to dark matter
A newly discovered dwarf galaxy orbiting our own Milky Way has offered up a surprise -- it appears to be radiating gamma rays, according to an analysis by physicists at Carnegie Mellon, Brown, and Cambridge universities. The exact source of this high-energy light is uncertain at this point, but it just might be a signal of dark matter lurking at the galaxy's center. (2015-08-18)

Capturing clues to solar mysteries hurtling through space at the speed of light
Solar flare experts from around the world gathered at NJIT last week to share the latest research on the sudden, powerful blasts of electromagnetic radiation and charged particles that burst into space during the Sun's massive eruptions. (2015-08-17)

Revealed -- Helicobacter pylori's secret weapon
Is the game up for Helicobactor pylori? Researchers in the School of Pharmacy, at The University of Nottingham and AstraZeneca R&D have identified the molecular mechanism that the bacterium's best-known adhesion protein uses to attach to stomach sugars and evade the body's attempts to 'flush' it away. (2015-08-14)

An all-natural sunscreen derived from algae
For consumers searching for just the right sunblock this summer, the options can be overwhelming. But scientists are now turning to the natural sunscreen of algae -- which is also found in fish slime -- to make a novel kind of shield against the sun's rays that could protect not only people, but also textiles and outdoor materials. They report on their development in the journal ACS Applied Materials & Interfaces. (2015-07-29)

York scientists unlock secrets of stars through aluminium
Physicists at the University of York have revealed a new understanding of nucleosynthesis in stars, providing insight into the role massive stars play in the evolution of the Milky Way and the origins of the Solar System. (2015-07-29)

Research investigates whether solar events could trigger birth defects on Earth
A new NASA-funded investigation has found radiation from solar events is too weak to cause worry at ground level. Results have just been published in the Journal of Geophysical Research and hailed as one of three 'Editor's Choice' publications for the first quarter of 2015 by Space Weather. (2015-07-20)

For kids with injured ankles, less treatment may be more
Emergency physicians can safely reduce X-rays in children with hurt ankles by as much as 23 percent and save emergency patients both money and time. The results of a cost analysis of the Low Risk Ankle Rule were published online Tuesday in Annals of Emergency Medicine: 'Cost Consequence Analysis of Implementing the Low Risk Ankle Rule in Emergency Departments.' (2015-07-20)

Study finds metal foams capable of shielding X-rays, gamma rays, neutron radiation
Research shows lightweight composite metal foams are effective at blocking X-rays, gamma rays and neutron radiation, and are capable of absorbing the energy of high impact collisions. The finding means metal foams hold promise for use in nuclear safety, space exploration and medical technology applications. (2015-07-17)

Trapped light orbits within an intriguing material
Hexagonal boron nitride bends electromagnetic energy in unusual and potentially useful ways. Physicists recently found that nanoscale granules of the material can store light. Now they have shown that the trapped light, polariton rays, propagate along paths at fixed angles with respect to the atomic structure of the material and at certain 'magic' frequencies form simple closed orbits. The insight could guide the development of applications such as nanoresonators, hyperlenses or infrared photon sources. (2015-07-16)

NASA's Fermi sees record flare from a black hole in a distant galaxy
Five billion years ago, a great disturbance rocked a region near the monster black hole at the center of galaxy 3C 279. On June 14, the pulse of high-energy light produced by this event finally arrived at Earth, setting off detectors aboard NASA's Fermi Gamma-ray Space Telescope and other satellites. Astronomers around the world turned instruments toward the galaxy to observe this brief but record-setting flare in greater detail. (2015-07-10)

New program using CT technology helping doctors better detect lung cancer
Long-time smokers and past smokers now have a more accurate way of detecting whether or not they have lung cancer thanks to a comprehensive lung cancer screening program that uses CT scan technology at Intermountain Medical Center in Salt Lake City. (2015-07-09)

NASA's Swift reveals a black hole bull's-eye
What looks like a shooting target is actually an image of nested rings of X-ray light centered on an erupting black hole. On June 15, NASA's Swift satellite detected the start of a new outburst from V404 Cygni, where a black hole and a sun-like star orbit each other. Since then, astronomers around the world have been monitoring the ongoing light show. (2015-07-09)

Biggest explosions in the universe powered by strongest magnets
Observations from ESO's La Silla and Paranal Observatories in Chile have for the first time demonstrated a link between a very long-lasting burst of gamma rays and an unusually bright supernova explosion. The results show that the supernova was not driven by radioactive decay, as expected, but was instead powered by the decaying super-strong magnetic fields around an exotic object called a magnetar. The results will appear in the journal Nature on July 9, 2015. (2015-07-08)

Super-bright supernova with extreme burst of gamma radiation
Astronomers from the Niels Bohr Institute have observed a super-bright supernova in association with a very unusual long lasting gamma-ray burst. Gamma-ray bursts usually only last a few minutes, but the new burst lasted more than half an hour. The supernova itself was extremely bright -- more than three times as bright as the supernovae previously associated with gamma-ray bursts. (2015-07-08)

A black hole under the gravitational lens
An unusual observation method uncovers processes near the event horizon of a distant, massive monster. (2015-07-08)

Study identifies characteristic EEG pattern of high-dose nitrous oxide anesthesia
Investigators at Massachusetts General Hospital find that the EEG patterns of patients receiving high doses of nitrous oxide differ significantly from those of the same patients when they had received ether-based inhaled anesthetics earlier in the procedures. (2015-07-07)

Medical treatments benefit from the contribution of accelerator physics and engineering
History has shown that energetic particles can be useful for medical applications. From the time, in 1895 when Roentgen discovered X-rays, and in 1913 when Coolidge developed the vacuum X-ray tube, energetic particles have been an important tool for medicine. Development of the appropriate tool for effective and safe radiotherapy requires an in-depth understanding of the application and constraints. Various solutions are possible and choices must be analyzed on the basis of the suitability for meeting the requirements. (2015-07-07)

Universe's hidden supermassive black holes revealed
Astronomers have found evidence for a large population of hidden supermassive black holes in the universe. (2015-07-05)

Astronomers predict fireworks from rare stellar encounter in 2018
Astronomers are gearing up for high-energy fireworks coming in early 2018, when a stellar remnant the size of a city meets one of the brightest stars in our galaxy. (2015-07-02)

Genetic variation determines response to anti-diabetic drug
In the first study of its kind, researchers have shown how an anti-diabetic drug can have variable effects depending on small natural differences in DNA sequence between individuals. They aim to apply this knowledge to develop personalized approaches to treating diabetes and other metabolic disorders. (2015-07-02)

Nanospiked bacteria are the brightest hard X-ray emitters
In a scientific breakthrough, researchers at the Tata Institute of Fundamental Research, Mumbai and Institute for Plasma Research, Gandhi Nagar have fashioned bacteria to emit intense, hard X-ray radiation. Published in Optics Express this month, they show that irradiating a glass slide coated with nanoparticle doped bacteria, turns the cellular material into hot, dense plasma, making this a useful table top X-ray source with several potential applications. (2015-07-02)

Using muons from cosmic rays to find fraying infrastructure
Seeking a better way to identify faulty energy infrastructure before it fails, researchers at Los Alamos National Laboratory are using subatomic particles called muons to analyze the thickness of concrete slabs and metal pipes. Their technique, described in a June 30 paper in the journal AIP Advances, from AIP Publishing, is a way to safely and non-invasively find worn infrastructure components using background radiation already present in the environment. (2015-06-30)

NASA missions monitor a waking black hole
NASA's Swift satellite detected a rising tide of high-energy X-rays from the constellation Cygnus on June 15, just before 2:32 p.m. EDT. About 10 minutes later, the Japanese experiment on the International Space Station called the Monitor of All-sky X-ray Image (MAXI) also picked up the flare. (2015-06-30)

Study: Severe asthma fails to respond to mainstay treatment
The immune response that occurs in patients with severe asthma is markedly different than what occurs in milder forms of the lung condition, according to researchers from the University of Pittsburgh School of Medicine. (2015-06-29)

SLU's vaccine center awarded $2.9 million to study new TB vaccine
Daniel Hoft, M.D., Ph.D., director of the division of infectious diseases at Saint Louis University has received funding from the Gates Foundation to research a potential vaccine against tuberculosis. (2015-06-29)

Forgotten fossil indicates earlier origin of teeth
A tiny tooth plate of the 410 million year old fossil fish Romundina stellina indicates that teeth evolved earlier in the tree of life than recently thought. (2015-06-24)

Scripps scientists awarded $3.5 million to expand development of new diabetes therapies
Scientists from the Florida campus of the Scripps Research Institute have been awarded $3.5 million from the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health to accelerate development of a new class of anti-diabetic compounds. (2015-06-24)

Neutron star's echoes give astronomers a new measuring stick
In late 2013, when the neutron star at the heart of one of our galaxy's oddest supernovae gave off a massive burst of X-rays, the resulting echoes -- created when the X-rays bounced off clouds of dust in interstellar space -- yielded a surprising new measuring stick for astronomers. (2015-06-23)

NASA simulation suggests black holes may make ideal dark matter labs
A new NASA computer simulation shows that dark matter particles colliding in the extreme gravity of a black hole can produce strong, potentially observable gamma-ray light. Detecting this emission would provide astronomers with a new tool for understanding both black holes and the nature of dark matter, an elusive substance accounting for most of the mass of the universe that neither reflects, absorbs nor emits light. (2015-06-23)

Scientists film shock waves in diamond
Researchers have used ultra-short pulses of X-rays to film shock waves in diamonds. The study headed by DESY scientists opens up new possibilities for studying the properties of materials. Thanks to the extremely bright and short X-ray flashes, the researchers were able to follow the rapid, dynamic changes taking place in the shock wave with a high spatial as well as a high temporal resolution. The team is presenting its results in the journal Scientific Reports. (2015-06-18)

Sunscreen confusion may burn shoppers
Consumers may need more help navigating the sunscreen aisle. A new Northwestern Medicine study found that many people seem to be confused by sunscreen terminology. Only 43 percent of people surveyed understood the definition of sun protection factor (SPF) and only seven percent knew what to look for on a label if they wanted a sunscreen that offers protection against early skin aging. (2015-06-17)

Cosmic ray observatory to expand
Physicists plan a $6.4 million expansion of the $25 million Telescope Array observatory in Utah so they can zero in on a 'hotspot' that seems to be a source of the most powerful particles in the universe: ultrahigh-energy cosmic rays. (2015-06-14)

Autoimmunity: New immunoregulation and biomarker
Clinicians at Ludwig-Maximilians-Universitaet in Munich have elucidated a mechanism involved in determining the lifespan of antibody-producing cells, and identified a promising new biomarker for monitoring autoimmune diseases like multiple sclerosis and lupus erythematosus. (2015-06-12)

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