Science2.0

Ironically, Asking Questions To Identify Teens At Risk Of Hearing Loss Doesn't Work

Science2.0 - October 23, 2014 - 9:02pm

There is no substitute for a hearing test, especially in an age group that doesn't self-report very well.

Currently, the American Academy of Pediatrics and
the Bright Futures children's health organization
recommends screening adolescents with subjective questions but that does not reliably identify teenagers who are at risk for hearing loss, according to researchers at Penn State College of Medicine. 

"We found that you can't rely on the Bright Futures questions to select out teenagers at high risk for hearing loss who would warrant an objective screen," said Deepa Sekhar, M.D., M.Sc., assistant professor of pediatrics.


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Extreme Ice Age Living: Human Settlement 15,000 Feet In The Andes

Science2.0 - October 23, 2014 - 7:49pm

Think you're extreme? 12,000 years ago Ice Age Humans lived and worked at an altitude of almost 15,000 feet, high in the Peruvian Andes.

The sites in the Pucuncho Basin, located in the Southern Peruvian Andes, are the highest-altitude Pleistocene archaeological sites found to-date. The primary site, Cuncaicha is a rock shelter at 4,480 meters above sea level, with a stone-tool workshop below it. There is also a Pucuncho workshop site where stone tools were made at 4,355 meters above sea level.


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Deinocheirus Mirificus Puzzle Solved, Revealing The Weirdest-Looking Creature To Walk The Planet

Science2.0 - October 23, 2014 - 7:33pm

Deinocheirus mirificus. Credit: Yuong-Nam Lee

By Stephen Brusatte, University of Edinburgh

Everywhere scientists look it seems like they are finding dinosaurs. A new species is emerging at the astounding pace of one per week. And this continues with the announcement of perhaps the strangest dinosaur find over the past few years: the toothless, hump-backed, super-clawed omnivore Deinocheirus mirificus that lived about 70m years ago in what is now Mongolia.

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The World's Continents Weren't Always Created In The Way That We Thought

Science2.0 - October 23, 2014 - 7:01pm

How many continents can you count on one hand? Image: Chones

By Nick Rawlinson, University of Aberdeen

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It Takes More Than Singing To Strike A Chord In Music Education

Science2.0 - October 23, 2014 - 6:17pm

Credit: Khairil Zhafri, CC BY

By Anita Collins, University of Canberra

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Type 1 Diabetes Surges In White Kids

Science2.0 - October 23, 2014 - 5:30pm

White children diagnosed with type 1 diabetes increased significantly from 2002 to 2009 in all but the youngest age group, according to a new paper in Diabetes.


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Disabled People In The US Have Poor Nutrition

Science2.0 - October 23, 2014 - 5:01pm

A new study finds that though most U.S. adults fail to meet recommended daily levels of 10 key nutrients, those with disabilities do substantially worse.

At least 10 percent of U.S. adults fit into one or more category of disability, from those who have difficulties with activities of daily living, such as dressing, bathing and eating, to those who cannot use their legs or struggle to accomplish routine tasks, such as money management or household chores.


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Herbal Medicines Found To Have Dangerous Levels Of Toxic Mold

Science2.0 - October 23, 2014 - 4:53pm

Up to 64% of people worldwide use medicinal plants to treat illnesses and relieve pain, and the herbal medicine market is worth $60 billion annually. Despite the increasing popularity of herbal medicine, the sale of medicinal plants is mostly unregulated, because they do not claim to be medicine in countries where regulation happens. 

It's obvious why people in developing nations embrace herbal alternatives to medicine - medicine is expensive. In wealthier countries, it is instead embraced by people who have plenty of money but don't trust science.


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Could Life Have Existed Just 15 Million Years After The Big Bang?

Science2.0 - October 23, 2014 - 12:00pm

A new paper suggests that planets from the remnants of the universe's earliest stars could have supported life on dim, warm planets. Credit: NASA/WMAP Science Team

By: Ker Than, Inside Science

(Inside Science) -- Life in the universe could be much older than previously thought, forming as early as fifteen million years after the Big Bang, according to a provocative new idea proposed by a Harvard astrophysicist.

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The Strange Organic Molecules In Titan's Atmosphere

Science2.0 - October 23, 2014 - 12:00pm

While studying the atmosphere on Saturn's moon Titan, scientists discovered intriguing zones of organic molecules unexpectedly shifted away from its north and south poles. These misaligned features seem to defy conventional thinking about Titan's windy atmosphere, which should quickly smear out such off-axis concentrations.

"This is an unexpected and potentially groundbreaking discovery," said Martin Cordiner, an astrochemist working at NASA's Goddard Space Flight Center in Greenbelt, Maryland, and the lead author of a study published online today in the Astrophysical Journal Letters. "These kinds of east-to-west variations have never been seen before in Titan's atmospheric gases. Explaining their origin presents us with a fascinating new problem."


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How Gut Bacteria Ensure A Healthy Brain – and Could Play A Role In Treating Depression

Science2.0 - October 23, 2014 - 11:30am

Your second brain? Credit: hey__paul, CC BY

By Clio Korn, University of Oxford

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Drink Up, Baby Boomer: Alcohol Associated With Better Memory

Science2.0 - October 22, 2014 - 11:39pm

A new study found that people ages 60 and older who do not have dementia benefit from light alcohol consumption; it has been associated with higher episodic memory, the ability to recall memories of events. 

Moderate alcohol consumption was also linked with a larger volume in the hippocampus, a brain region critical for episodic memory. The relationship between light alcohol consumption and episodic memory goes away if hippocampal volume is factored in, providing new evidence that hippocampal functioning is the critical factor in these improvements.  


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Will Holding Thermal Printer Paper Really Send Your BPA Levels Soaring?

Science2.0 - October 22, 2014 - 11:30pm

Structure of Bisphenol A. Credit: Ian Musgrave

By Ian Musgrave

Bisphenol A is in the news again. A paper just published in the Public Library of Science with the alarming title of “Holding Thermal Receipt Paper and Eating Food after Using Hand Sanitizer Results in High Serum Bioactive and Urine Total Levels of Bisphenol A (BPA)” is bound to ratchet up anxiety levels about this chemical yet again.

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Why Do We Find It So Hard To Write About Ourselves?

Science2.0 - October 22, 2014 - 11:30pm

Credit: The Conversation

By Jordan Gaines Lewis, Penn State College of Medicine

If you’ve ever applied for a job, you know how hard it is to write the perfect cover letter that will make you stand out above all the other applicants. It’s a competitive job market, and more often than not, career seekers find themselves face-to-face with blank computer screens in an attempt to pen that one short masterpiece.

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The Comets Of Beta Pictoris

Science2.0 - October 22, 2014 - 11:00pm

Beta Pictoris is a young star, only about 20 million years old, located about 63 light-years from us. It is surrounded by a huge disc of material, a very active young planetary system where gas and dust are produced by the evaporation of comets and the collisions of asteroids.


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Cancer Mutations, Now With Faster Modeling

Science2.0 - October 22, 2014 - 10:31pm

By sequencing the genomes of tumor cells, thousands of genetic mutations have been linked with cancer.

Sifting through this deluge of information to figure out which of these mutations actually drive cancer growth has proven to be a tedious, time-consuming process but MIT researchers have now developed a new way to model the effects of these genetic mutations in mice. Their approach, based on the genome-editing technique clustered regularly interspaced short palindromic repeats (CRISPR) is much faster than existing strategies, which require genetically engineering mice that carry the cancerous mutations.


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How Lymph Nodes Expand During Disease

Science2.0 - October 22, 2014 - 10:31pm

A new paper finds that the same specialized immune cells that patrol the body and spot infections also trigger the expansion of the immune organs known as lymph nodes.

The immune system defends the body from infections but can also spot and destroy cancer cells and lymph nodes are at the heart of this response, but it was unclear how they expand during disease. 

Researchers  at Cancer Research UK's London Research Institute found that when a type of immune cell known as dendritic cells recognizes a threat, they make a molecule called CLEC-2 that tells the cells lining the lymph nodes to stretch out and expand to allow for an influx of disease fighting cells. 


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Hand Sanitizers Increase BPA Levels From Cash Register Receipts

Science2.0 - October 22, 2014 - 9:25pm

Bisphenol A (BPA) is a chemical that is used in a variety of consumer products, such as water bottles, dental composites and resins used to line metal food and beverage containers. 

It is also used in thermal paper cash register receipts and a new paper finds that is cause for concern. BPA has not been found to be harmful by the Centers for Disease Control, they say levels from all sources is 1/1000th safe levels for the US, the EU and Canada, but it is controversial due to publicity by environmental groups and the guilt-by-association taint of endocrine disruption.  The FDA agrees.


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Tropical Depression 9: Bay Of Campeche In The Gulf Of Mexico

Science2.0 - October 22, 2014 - 8:57pm

NOAA's GOES-East Satellite captured the birth of Tropical Depression Nine formed over the western Bay of Campeche, Gulf of Mexico and is forecast to make a quick landfall on Mexico's Yucatan Peninsula.

The clouds associated with the depression stretched over the Yucatan Peninsula and into the western Caribbean Sea were captured on Oct. 22nd at 1600 UTC (12 p.m. EDT).


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This Is Not The Immigration Crisis You're Looking For

Science2.0 - October 22, 2014 - 7:04pm

When is an immigration crisis not an immigration crisis? When people who do not live where it is happening change the definition of an immigration crisis.

A new paper from Rice University's Baker Institute for Public Policy examines historical immigration data, the "push" and "pull" factors currently motivating Mexicans and Central Americans to migrate to the U.S. and then attempts to explain why current undocumented immigration streaming across the Mexican border is not a crisis. 


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