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News tagged with substances

Radioactive bluefin tuna crossed the Pacific to US

Across the vast Pacific, the mighty bluefin tuna carried radioactive contamination that leaked from Japan's crippled nuclear plant to the shores of the United States 6,000 miles away - the first time a huge ...

Space & Earth / Environment

created May 28, 2012 | popularity 5 / 5 (5) | comments 20

Does dinner make a strong family, or does a strong family make dinner?

The family meal is often touted and encouraged for its social and health benefits, but a new Cornell University study questions the nature of this association, finding that the perceived benefits may not be as strong or as ...

Other Sciences / Social Sciences

created May 29, 2012 | popularity 5 / 5 (1) | comments 0

Drug companies moving toward green goals

Many pharmaceutical companies in a new survey are making progress in embracing the guiding principles of green chemistry, which seek to minimize the use of potentially hazardous substances in producing medications, reduce ...

Chemistry / Other

created May 31, 2012 | popularity not rated yet | comments 0

Electronic nose prototype may be worn for safety-sniffing

(Phys.org) -- A UK company has developed an electronic nose that the company says can make a real difference, as a fast-acting device for detecting harmful substances in the environment. Peratech claims its electronic nose ...

Chemistry / Analytical Chemistry

created May 12, 2012 | popularity 5 / 5 (2) | comments 2 | with audio podcast weblog

Japan's runaway penguin suffering from pink-eye

A plucky penguin that was recaptured last week after nearly three months at large in the polluted waters of Tokyo Bay has conjunctivitis, an aquarium official said Monday.

Biology / Plants & Animals

created May 28, 2012 | popularity 5 / 5 (1) | comments 1

Designing a dye you can count on

Natural substances such as chlorophyll and the heme pigment of red blood cells contain colorful molecules known as porphyrins. They owe their exceptional visual characteristics to a ‘macrocyclic’ ...

Chemistry / Materials Science

created May 24, 2012 | popularity not rated yet | comments 0

Beetle-infested pine trees contribute more to air pollution and haze in forests

The hordes of bark beetles that have bored their way through more than 6 billion trees in the western U.S. and British Columbia since the 1990s do more than damage and kill stately pine, spruce and other trees. ...

Space & Earth / Environment

created May 23, 2012 | popularity not rated yet | comments 0

New design for a metamaterial could be far more efficient at capturing sunlight than existing solar cells

Metamaterials are a new class of artificial substances with properties unlike anything found in the natural world. Some have been designed to act as invisibility cloaks; others as superlenses, antenna systems ...

Physics / Condensed Matter

created Mar 09, 2012 | popularity 4.9 / 5 (20) | comments 7 | with audio podcast

New equation predicts molecular forces in hydrophobic interactions

The physical model to describe the hydrophobic interactions of molecules has been a mystery that has challenged scientists and engineers since the 19th century. Hydrophobic interactions are central to explaining ...

Chemistry / Materials Science

created Oct 11, 2011 | popularity 4.6 / 5 (8) | comments 0 | with audio podcast

How heroin works: Imaging opioid receptors in the brain

(Phys.org) -- Researchers and doctors have gleaned new clues to the molecular mechanisms behind some of the most addictive substances in the world, thanks to two new studies that uncovered the structures of ...

Chemistry / Biochemistry

created Apr 25, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

'Miracle tree' substance produces clean drinking water inexpensively and sustainably

A natural substance obtained from seeds of the "miracle tree" could purify and clarify water inexpensively and sustainably in the developing world, where more than 1 billion people lack access to clean drinking ...

Chemistry / Biochemistry

created Jan 18, 2012 | popularity 5 / 5 (6) | comments 5 | with audio podcast

Team releases findings from 2011 cruise to measure the concentration, distribution, and impacts of Fukushima radiation

(PhysOrg.com) -- An international research team is reporting the results of a research cruise they organized to study the amount, spread, and impacts of radiation released into the ocean from the tsunami-crippled ...

Space & Earth / Environment

created Apr 02, 2012 | popularity 4 / 5 (4) | comments 0 | with audio podcast

New 'smart window' system with unprecedented performance

A new "smart" window system has the unprecedented ability to inexpensively change from summer to winter modes, darkening to save air conditioning costs on scorching days and returning to crystal clarity in ...

Nanotechnology / Nanomaterials

created Sep 21, 2011 | popularity 5 / 5 (10) | comments 0 | with audio podcast

Wastewater clues to illicit drug use

A new chemical analysis of sewage is revealing more detailed information than ever about drug abuse trends.

Chemistry / Analytical Chemistry

created Mar 22, 2012 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

Carbon nanoparticles break barriers -- and that may not be good

A study by researchers from the schools of science and medicine at Indiana University-Purdue University Indianapolis examines the effects of carbon nanoparticles (CNPs) on living cells. This work is among ...

Nanotechnology / Bio & Medicine

created Sep 15, 2011 | popularity 5 / 5 (8) | comments 0 | with audio podcast