(Press-News.org) VIDEO:
On July 19, 2012, an eruption occurred on the sun that produced a moderately powerful solar flare and a dazzling magnetic display known as coronal rain. Hot plasma in the...
Click here for more information.
Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with changes in magnetic field lines that loop up into the sun's atmosphere, the corona.
On July 19, 2012, an eruption occurred on the sun that produced all three. A moderately powerful solar flare exploded on the sun's lower right limb, sending out light and radiation. Next came a CME, which shot off to the right out into space. And then, the sun treated viewers to one of its dazzling magnetic displays – a phenomenon known as coronal rain.
Over the course of the next day, hot plasma in the corona cooled and condensed along strong magnetic fields in the region. Magnetic fields, themselves, are invisible, but the charged plasma is forced to move along the lines, showing up brightly in the extreme ultraviolet wavelength of 304 Angstroms, which highlights material at a temperature of about 50,000 Kelvin. This plasma acts as a tracer, helping scientists watch the dance of magnetic fields on the sun, outlining the fields as it slowly falls back to the solar surface.
The footage in this video was collected by NASA's Solar Dynamics Observatory's Atmospheric Imaging Assembly (AIA) instrument. SDO collected one frame every 12 seconds, and the movie plays at 30 frames per second, so each second in this video corresponds to six minutes of real time. The video covers 12:30 a.m. EDT to 10:00 p.m. EDT on July 19, 2012.
INFORMATION: END
INDIANAPOLIS -- Advances in electronic medical record systems and health information exchange are shifting efforts in public health toward greater use of information systems to automate disease surveillance, but a study from the Regenstrief Institute has found that these technologies' capabilities are underutilized by those on the front lines of preventing and reporting infections.
The new study measured the awareness, adoption and use of electronic medical record systems and health information exchange by hospital-based infection preventionists (formerly known as infection ...
VIDEO:
The TRMM satellite flew above Haruna on Feb. 20 at 0717 UTC. Some powerful storms Haruna's northern edge showed rainfall over 108 mm (~4.25 inches) per hour and cloud tops...
Click here for more information.
Cyclone Haruna strengthened into a cyclone and quickly developed an eye that became apparent on visible and infrared imagery from NASA's Aqua satellite. NASA's TRMM satellite analyzed Haruna's heavy rainfall, and NASA and NOAA's Suomi NPP satellite captured a ...
AUDIO:
This is an example of a trill song type that tells listeners how big the singer is. Their larger physical size means that bigger male purple-crowned fairy-wrens can sing this...
Click here for more information.
A male fairy-wren's low pitch song indicates body size, a new international study has shown.
The study led by University of Melbourne researcher Dr Michelle Hall, is the first to show that the larger the male fairy wren, the lower the pitch of his song.
"This ...
INDIANAPOLIS -- A study combining genetic data with brain imaging, designed to identify genes associated with the amyloid plaque deposits found in Alzheimer's disease patients, has not only identified the APOE gene -- long associated with development of Alzheimer's -- but has uncovered an association with a second gene, called BCHE.
A national research team, led by scientists at the Indiana University School of Medicine, reported the results of the study in an article in Molecular Psychiatry posted online Tuesday. The study is believed to be the first genome-wide association ...
Researchers from The University of Texas at Arlington are pioneering a new method for using carbon dioxide, or CO2, to make liquid methanol fuel by using copper oxide nanowires and sunlight.
The process is safer, simpler and less expensive than previous methods to convert the greenhouse gas associated with climate change to a useful product, said Krishnan Rajeshwar, interim associate vice president for research at UT Arlington and one of the authors of a paper recently published in the journal Chemical Communications. Researchers began by coating the walls of copper oxide, ...
Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity.
After analyzing Hubble Space Telescope images of star cluster NGC 1818 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way, researchers at the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University in Beijing found more binary star systems toward the periphery of cluster than in the center – the opposite of what they expected. The ...
(SACRAMENTO, Calif.) — Gun violence in the United States can be substantially reduced if Congress expands requirements for background checks on retail gun sales to cover firearm transfers between private parties, a new report by the director of the UC Davis Violence Prevention Research Program concludes.
The report "Background Checks for Firearm Transfers" by Garen Wintemute, who also serves as a professor of emergency medicine, notes that 40 percent of U.S. gun transactions occur between unlicensed private parties, such as people buying and selling at gun shows. That ...
BOSTON (Wednesday, February 20, 2013)- Workplace-based programs that include dietary advice coupled with behavioral counseling appear to be a promising approach for men and women with significant weight loss goals, based on the results of a pilot study conducted by researchers at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University. Employees enrolled in the intervention arm of a randomized controlled trial lost on average, 18 pounds over a six-month period compared to a two pound weight gain in a control group. The study results ...
COLUMBIA, Mo. – After retirement, pensions provide consistent income to aging individuals. Although the details of pension eligibility and implementation vary by country, receiving pensions can represent a new life stage for individuals. Now, a University of Missouri researcher has studied how older men and women view their health before and after receiving fixed incomes. South African men and women in the study viewed their health more positively when they began receiving their pensions, but the heightened sense of well-being faded over time.
"We looked at individuals' ...
Fetal alcohol syndrome is the leading preventable cause of developmental disorders in developed countries. And fetal alcohol spectrum disorder (FASD), a range of alcohol-related birth defects that includes fetal alcohol syndrome, is thought to affect as many as 1 in 100 children born in the United States.
Any amount of alcohol consumed by the mother during pregnancy poses a risk of FASD, a condition that can include the distinct pattern of facial features and growth retardation associated with fetal alcohol syndrome as well as intellectual disabilities, speech and language ...
