Senin, 05 Oktober 2015

ScienceDaily: Top News

ScienceDaily: Top News

Light-based memory chip is the first ever to store data permanently

Posted: 04 Oct 2015 08:28 AM PDT

The world's first entirely light-based memory chip to store data permanently has been developed by material scientists. The device, which makes use of materials used in CDs and DVDs, could help dramatically improve the speed of modern computing.

Calibrated compact model library for silicon photonics platform

Posted: 03 Oct 2015 07:12 PM PDT

The calibrated library of compact models will enable improved accuracy and reliability in photonic integrated circuit design and fabrication.

Digital world map broadens scope for middle ages teaching, research

Posted: 01 Oct 2015 12:42 PM PDT

Online users can now travel back in time to the medieval world by clicking through a collection of international research on the first digital platform of its kind.
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Minggu, 04 Oktober 2015

ScienceDaily: Top News

ScienceDaily: Top News

Trade in invasive plants is blossoming

Posted: 03 Oct 2015 10:50 AM PDT

Every day, hundreds of different plant species -- many of them listed as invasive -- are traded online worldwide on auction platforms. This exacerbates the problem of uncontrollable biological invasions.

Lead exposure in mothers can affect future generations

Posted: 02 Oct 2015 04:17 PM PDT

Researchers have discovered that mothers with high levels of lead in their blood not only affect the fetal cells of their unborn children, but also their grandchildren.

Online e-cigarette vendors engage customers using popular internet tools

Posted: 02 Oct 2015 04:17 PM PDT

First introduced in the United States in 2007, electronic cigarettes have risen dramatically in part because they are popularly considered safer and more socially acceptable than combustible cigarettes and because there are fewer restrictions on their purchase and use. A study now points to aggressive online marketing tactics that make purchasing e-cigarettes easy for all ages.

Nanocellulose materials by design

Posted: 02 Oct 2015 04:17 PM PDT

Theoretically, nanocellulose could be the next hot supermaterial. A new computational approach allows researchers to design cellulose nanocomposites with optimal properties, resulting in materials that live up to their reputation.

Researcher calls for changes to colorectal cancer screening guidelines

Posted: 02 Oct 2015 04:17 PM PDT

Colorectal cancer will claim the lives of close to 50,000 Americans this year, according to the American Cancer Society. Screening is the most effective way to reduce the risk of dying from the disease, yet as a physician argues in a recent editorial, current recommendations to screen older people with a family history of colorectal cancer, specifically with colonoscopy every five years, is not justified for most patients.

FDA approves game-changing immunotherapy drug to fight lung cancer

Posted: 02 Oct 2015 12:26 PM PDT

The U.S. Food and Drug Administration has approved the breakthrough drug Keytruda to treat advanced non-small cell lung cancer, signaling a paradigm shift in the way the deadliest of all cancers is treated.

Colorful caterpillar chemists

Posted: 02 Oct 2015 11:49 AM PDT

Scientists have compared the diets of two caterpillar species, expecting the one that exclusively consumed plants containing toxic chemicals would more easily incorporate toxins into its body than the one with a broad diet. They found the opposite. The new finding flies in the face of a long-held theory that specialist insects are better adapted to use toxic plant chemicals than non-specialists.

Self-propelled powder designed to stop severe bleeding

Posted: 02 Oct 2015 11:49 AM PDT

Researchers have created the first self-propelled particles capable of delivering coagulants against the flow of blood to treat severe bleeding, a potentially huge advancement in trauma care.

Pathogen-carrying neotropical ticks ride migratory birds into US

Posted: 02 Oct 2015 11:49 AM PDT

Tick species not normally present in the United States are arriving here on migratory birds. Some of these ticks carry disease-causing Ricksettia species, and some of those species are exotic to the US.

Signs of ancient mega-tsunami could portend modern hazard

Posted: 02 Oct 2015 11:49 AM PDT

Scientists working off west Africa in the Cape Verde Islands have found evidence that the sudden collapse of a volcano there tens of thousands of years ago generated an ocean tsunami that dwarfed anything ever seen by humans. The researchers say an 800-foot wave engulfed an island more than 30 miles away. The study could revive a simmering controversy over whether sudden giant collapses present a realistic hazard today around volcanic islands, or even along more distant continental coasts.

Players object to extreme physique of video game characters

Posted: 02 Oct 2015 10:31 AM PDT

A researcher surveyed video game players about their views of characters with unrealistic bodies and found that they objected to the exaggerated and highly sexualized physiques in the games.

Graphene as a front contact for silicon-perovskite tandem solar cells

Posted: 02 Oct 2015 08:35 AM PDT

A team of researchers has developed an elegant process for coating fragile perovskite layers with graphene for the first time. Subsequent measurements show that the graphene layer is an ideal front contact in several respects.

Fatty liver disease and scarring have strong genetic component

Posted: 01 Oct 2015 01:50 PM PDT

Hepatic fibrosis, which involves scarring of the liver that can result in dysfunction and, in severe cases, cirrhosis and cancer, may be as much a consequence of genetics as environmental factors.

Research shows a cause of gastrointestinal symptoms in Type 1 diabetes

Posted: 01 Oct 2015 01:50 PM PDT

A molecular basis has been found for why 80 percent of patients with longstanding Type 1 diabetes have chronic gastrointestinal symptoms including gastroparesis (delayed emptying of food), irritable bowel syndrome, abdominal distension and fecal incontinence, significantly reducing their quality of life.

New study removes cancer doubt for multiple sclerosis drug

Posted: 01 Oct 2015 01:50 PM PDT

Researchers are calling on the medical community to reconsider developing a known drug to treat people with relapsing multiple sclerosis (MS) after new evidence shows it does not increase the risk of cancer as previously thought.
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