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Astronomers Discover Houdini-Like Vanishing Act in Space

By Guest PostJuly 9, 2012Scienceastronomer, astronomical scale, baffling discovery, benjamin zuckerman, carl melis, Chile, constellation centaurus, dust, dust particles, dusty disc, game changer, gemini observatory, gemini telescope, infrared astronomical satellite, iras, joseph rhee, joy pollard, jupiter, lynette cook, mars, mega flare, mercury, NASA, neptune, norm murray, rocky debris, rocky planet, saturn rings, solar system, tyc 8241 2652, ucla, wise satellite

Astronomers report a baffling discovery never seen before: An extraordinary amount of dust around a nearby star has mysteriously disappeared.

“It’s like the classic magician’s trick — now you see it, now you don’t,” said Carl Melis, a postdoctoral scholar at UC San Diego and lead author of the research. “Only in this case, we’re talking about enough dust to fill an inner solar system, and it really is gone!”

“It’s as if the rings around Saturn had disappeared,” said co-author Benjamin Zuckerman, a UCLA professor of physics and astronomy. “This is even more shocking because the dusty disc of rocky debris was bigger and much more massive than Saturn’s rings. The disc around this star, if it were in our solar system, would have extended from the sun halfway out to Earth, near the orbit of Mercury.” (more…)

Nitrogen Pollution Changing Rocky Mountain National Park Vegetation, Says CU-Boulder Study

By Guest PostJuly 8, 2012Environmentacidified soils, national park, nitrogen pollution, rocky mountain, vegetation

A new study led by the University of Colorado Boulder indicates air pollution in the form of nitrogen compounds emanating from power plants, automobiles and agriculture is changing the alpine vegetation in Rocky Mountain National Park. (more…)

UCLA Study Looks at Why Heart Attacks Cause so Much More Damage in Late Pregnancy

By Guest PostJuly 8, 2012Healthandrea iorga, blood flow, cholesterol level, diabetes, drug therapy, dysfunction, heart attack, heart disease, heart function, hua cai, ji youn youn, jingyuan li, late pregnancy, mansoureh eghbali, mitochondria, reperfusion injury, risk, risk factor, soban umar, ucla, yibin wang

Heart attacks during pregnancy are uncommon, but the prevalence of heart disease in pregnant mothers has increased over the past decade as more women delay pregnancy until they are older. These women, who are generally less physically active than their younger peers, tend to have higher cholesterol levels and are at greater risk of heart disease and diabetes.

While research has shown that the heart typically functions better during pregnancy due to a rise in cardiac pumping capacity to meet increased demands, a new UCLA study in rats and mice demonstrates that heart attacks occurring in the last trimester or late months of pregnancy result in worse heart function and more damaged heart tissue than heart attacks among non-pregnant females.

The research is published in the July edition of the peer-reviewed journal Basic Research in Cardiology. (more…)

Skin Patch Improves Attention Span in Stroke Patients

By Guest PostJuly 7, 2012Healthadhd, brain damage, drug rotigotine, hemi spatial neglect, masud husain, parkinsons disease, placebo treatment, receptors in brain, skin patch, stroke, stroke patient, ucl, university college london

Researchers at the UCL Institute of Neurology have found that giving the drug rotigotine as a skin patch can improve inattention in some stroke patients.

Hemi-spatial neglect, a severe and common form of inattention that can be caused by brain damage following a stroke, is one of the most debilitating symptoms, frequently preventing patients from living independently. When the right side of the brain has suffered damage, the patient may have little awareness of their left-hand side and have poor memory of objects that they have seen, leaving them inattentive and forgetful. Currently there are few treatment options. (more…)

Mars Panorama: Next Best Thing to Being There

By Guest PostJuly 7, 2012Sciencearizona state university, cornell university, endeavour crater, greeley haven, jim bell, mars exploration rover, mars odyssey orbiter, mars panorama, mars pathfinder, martian winter, NASA, opportunity, pancam, ron greeley, steve squyres

PASADENA, Calif. — From fresh rover tracks to an impact crater blasted billions of years ago, a newly completed view from the panoramic camera (Pancam) on NASA’s Mars Exploration Rover Opportunity shows the ruddy terrain around the outcrop where the long-lived explorer spent its most recent Martian winter.

This scene recorded from the mast-mounted color camera includes the rover’s own solar arrays and deck in the foreground, providing a sense of sitting on top of the rover and taking in the view. Its release this week coincides with two milestones: Opportunity completing its 3,000th Martian day on July 2, and NASA continuing past 15 years of robotic presence at Mars. Mars Pathfinder landed July 4, 1997. NASA’s Mars Global Surveyor orbiter reached the planet while Pathfinder was still active, and Global Surveyor overlapped the active missions of the Mars Odyssey orbiter and Opportunity, both still in service. (more…)

Katy Perry: Part of Me

By Guest PostJuly 7, 2012Entertainment3d motion picture, glamorous, heartbreaking, katy, katy perry, mad diary, paramount insurge, part of me, passionate, united states, yahoo movies

Synopsis

A 3D motion picture event movie, “Katy Perry: Part of Me” is a backstage pass, front row seat and intimate look at the fun, glamorous, heartbreaking, inspiring, crazy, magical, passionate, and honest mad diary of Katy. (more…)

Scientists Discover New Trigger for Immense North Atlantic Ocean Spring Plankton Bloom

By Guest PostJuly 7, 2012Environmentadam huxtable, amala mahadevan, atlantic ocean, biological pump, bjarni saemundsson, carbon dioxide, climate, climate on earth, CO2, craig lee, diatoms, don rice, eddies, emily kallin, eric d asaro, fossil fuel, global carbon cycle, holiday fireworks, mary jane perry, michael ohmart, microscopic plants, modulate, north atlantic bloom, not sunlight, nsf, ocean physics, oceanic cycling, oxygen, photosynthesis, physical biological model, phytoplankton, research vessel, silica, sun, surface warming, university of maine, university of washington, us beachgoers, whirlpools, whoi, zooplankton

Ocean eddies help jump-start plankton blooms that spread across hundreds of square miles

On this July 4^th week, U.S. beachgoers are thronging their way to seaside resorts and parks to celebrate with holiday fireworks. But across the horizon and miles out to sea toward the north, the Atlantic Ocean’s own spring and summer ritual unfolds. It entails the blooming of countless microscopic plants, or phytoplankton.

In what’s known as the North Atlantic Bloom, an immense number of phytoplankton burst into existence, first “greening,” then “whitening” the sea as one or more species take the place of others.

What turns on this huge bloom, what starts these ocean fireworks? Is it the Sun’s warmth? (more…)

Researchers Study How Cooperation Can Trump Competition in Monkeys

By Guest PostJuly 6, 2012Naturealpha male geladas, evolution of sociality, male gelada monkeys, multi male groups, reproductive career, single male system

ANN ARBOR, Mich.— Being the top dog—or in this case, the top gelada monkey—is even better if the alpha male is willing to concede at times to subordinates, a new study indicated. (more…)

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