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Researchers Confirm Discovery Of Earth's Innermost Core

Researchers Confirm Discovery Of Earth's Innermost Core

Geologists at the University of Illinois have confirmed the discovery of Earth’s inner, innermost core, and have created a three-dimensional model that describes the seismic anisotropy and texturing of iron crystals within the inner core.
“For many years, we have been like blind men touching different parts of an elephant,” said U. of I. geologist Xiaodong Song. “Now, for the fist time, we have a sense of the entire elephant, and see what the inner core of Earth really looks like.”
Using both newly acquired data and legacy data collected around the world, Song and postdoctoral research associate Xinlei Sun painstakingly probed the shape of Earth’s core.

Study: Gardasil HPV Vaccine Reduces Abnormal Pap Results

Study: Gardasil HPV Vaccine Reduces Abnormal Pap Results

Nearly 25 million U.S. women between the ages of 14 and 59 are infected with HPV, and the annual cost of screening and treating cervical abnormalities is about $4 billion, according to a statement from the Society of Gynecologic Oncologists.
For many unvaccinated women HPV infections clear up naturally without causing any cervical problems, as do many pre-malignant lesions. In other cases, HPV prompts cell changes that can gradually put women at greater risk of cervical cancer.
A significant drop in abnormal Pap test results happened after girls and women were given the vaccine named Gardasil to prevent cervical cancer, according to a researcher at the University of Alabama at Birmingham (UAB).
While the findings are not definitive that Gardasil prevents cancer, they do signal the vaccine will spare thousands of women a diagnosis of cell abnormality or malignant changes that may lead to more tests and possibly surgery, said Warner Huh, M.D., associate professor in the UAB Division of Gynecologic Oncology and the doctor chosen to present the data.

Are Large-Scale Simulations Of Water Dynamics Wrong?

Are Large-Scale Simulations Of Water Dynamics Wrong?

In Vadose Zone Journal, researchers state that a much smaller spatial resolution should be used for modeling soil water.
Soils are complicated porous media that are highly relevant for the sustainable use of water resources. Not only the essential basis for agriculture, soils also act as a filter for clean drinking water, and, depending on soil properties, they dampen or intensify surface runoff and thus susceptibility to floods. Moreover, the interaction of soil water with the atmosphere and the related energy flux is an important part of modern weather and climate models.
An accurate modeling of soil water dynamics thus has been an important research challenge for decades, but the prediction of water movement, especially at large spatial scales, is complicated by the heterogeneity of soils and the sometimes complicated topography.

Hercules Beetle Shell: Mystery Of The Strongest Creature In The World

Hercules Beetle Shell: Mystery Of The Strongest Creature In The World

The Hercules Beetle is remarkable not only for its strength, able to carry up to 850 times its own weight, but also the protective outgrowth of its exoskeleton, which also changes from green to black as its surrounding atmosphere gets more humid.
It's the strongest creature in the world but the color-changing trick is what scientists have long sought to understand. A new investigation into the structure of this peculiar protective shell which could aid design of ‘intelligent materials.’

Making Reliable Assessments Of Wind Power

Making Reliable Assessments Of Wind Power

Wind energy is regarded by many as the most viable source of short-term renewable energy.
Optimal operation of new generation wind turbines will only be possible through the reliable measurement of the wind inflow characteristics. Experience has shown that accurate power generation estimation based on wind speed is a challenging task.
For large new turbine models, conventional mast wind speed measurements are not feasible based on cost and technical considerations. Researchers at the Endowed Chair of Wind Energy (SWE) of the University of Stuttgart are working together with researchers from the University of Oldenburg and other project partners on an alternative remote sensing technique.

Gyro-resonant electron acceleration at Jupiter could help protect Earth-orbit satellites

Gyro-resonant electron acceleration at Jupiter could help protect Earth-orbit satellites

Radio waves accelerate electrons within Jupiter’s magnetic field in the same way as they do on Earth, according to new research. The discovery overturns a theory that has held sway for more than a generation and has important implications for protecting Earth-orbiting satellites.
Using data collected at Jupiter by the Galileo spacecraft, Dr Richard Horne of British Antarctic Survey (BAS) and colleagues from the University of California, Los Angeles, and the University of Iowa found that a special type of very low frequency radio wave is strong enough to accelerate electrons up to very high energies inside Jupiter’s magnetic field.

GABA Receptor Implicated In Epilepsy

GABA Receptor Implicated In Epilepsy

Scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) have published new research in Molecular Pharmacology identifying the structure of a receptor in the brain implicated in conditions such as epilepsy and pre-menstrual tension. The same receptor has also been reported to be highly sensitive to alcohol.
The University of Cambridge team, in collaboration with colleagues at Aston University and the University of Alberta, have determined the arrangement of the constituent parts of an uncommon but important type of GABA receptor in the brain. GABAA receptors in the central nervous system play important roles in the body’s response to gamma-aminobutyric acid (GABA), a chemical used by the brain to control certain functions.
By understanding how the receptors’ sub-units are arranged, scientists may now be able to develop drugs to block or stimulate them, providing hope for sufferers of a range of conditions.

Basic Propulsion: 50 Years Since Redstone-Jupiter C And, If It Works, Don't Fix It

Basic Propulsion: 50 Years Since Redstone-Jupiter C And, If It Works, Don't Fix It

Although it's been a half century since America entered the space age, the basic propulsion concepts used to push Explorer I into space will be the same type of propulsion that the nation will use to begin the next half century of space exploration.
It was January 31, 1958 when a Redstone-Jupiter C rocket developed in Huntsville, Ala., lifted the 30-pound artificial satellite into space.
Clark Hawk, director of the Propulsion Research Center at The University of Alabama in Huntsville (UAHuntsville) has seen most of the advances that have taken place in rocket propulsion. He has spent 50 years conducting research in the field.

Dr.

Cilia Link Shows Common Genetic Origin For Distinct Disorders

Cilia Link Shows Common Genetic Origin For Distinct Disorders

Researchers at Johns Hopkins have discovered that two clinically different inherited syndromes are in fact variations of the same disorder. The team suggests that at least for this class of disorders, the total number and “strength” of genetic alterations an individual carries throughout the genome can generate a range of symptoms wide enough to appear like different conditions.
“We’re finally beginning to blur the boundaries encompassing some of these diseases by showing that they share the same molecular underpinnings,” says Nicholas Katsanis, Ph.D., an associate professor of ophthalmology at the McKusick-Nathans Institute of Genetic Medicine at Hopkins. “This is important progress for several reasons. First, knowing what’s going on molecularly and being able to integrate rarer conditions under common mechanisms allows us to potentially help more people at once. Second, clinicians can finally begin to offer more accurate diagnoses based on what really matters: the state of affairs at the cellular/biochemical level. In time, this will empower genetic counseling and much improved patient management.”

Vegetables: A Different Kind Of Green For St. Patrick's Day

Vegetables: A Different Kind Of Green For St. Patrick's Day

When you think 'green' in March, maybe you think of leprechauns or four-leaf clovers. Or maybe you think about Al Gore and hybrid vehicles clogging up the HOV lanes during rush hour.
But let's not forget the original 'green' mindset, say nutrition, experts, and it involves diet.
Here’s a sampling of some green foods UT Southwestern dietitians recommend for March which, along with being a chance to drink green beer, is also National Nutrition Month (no, the green beer does not count as nutrition):

'Cloudshine' Lets Astronomers See In The Interstellar Dark

'Cloudshine' Lets Astronomers See In The Interstellar Dark

Astronomers using ESO's New Technology Telescope have measured the distribution of mass inside a dark filament in a molecular cloud with an amazing level of detail and to great depth, based on a new method that looks at the scattered near-infrared light or 'cloudshine.'
Dark clouds are feebly illuminated by nearby stars. This light is scattered by the dust contained in the clouds, an effect dubbed 'cloudshine' by Harvard astronomers Alyssa Goodman and Jonathan Foster. This effect is well known to sky lovers, as they create in visible light wonderful pieces of art called 'reflection nebulae'. The Chameleon I complex nebula is one beautiful example.
The vast expanses between stars are permeated with giant complexes of cold gas and dust opaque to visible light.