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General Science / Chemistry news 3456

'Grandma's penicillin' also may help high blood pressure

October 13, 2008 | User rating: 4.5 / 5 after 15 vote(s) | No comments yet

Chicken soup, that popular home remedy for the common cold sometimes known as "Grandma's Penicillin," may have a new role alongside medication and other medical measures in fighting high blood pressure, scientists in Japan ...


A new explosive: Melt-castable nitrate ester with high explosive energy

October 10, 2008 | User rating: 4.3 / 5 after 20 vote(s) | No comments yet

Since the discovery of nitroglycerin in 1846, the nitrate ester group of compounds has been known for its explosive properties. A whole series of other nitrate esters have been subsequently put to use as explosives ...


Healthful plant nutrients also found in meat and milk

November 17, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

Counterintuitive as it may seem, those healthful phytoestrogen nutrients that consumers usually associate with fruits and vegetables also exist in foods of animal origin. After all, "phyto" means "plant." ...


Super atoms turn the periodic table upside down

July 01, 2008 | User rating: 4.6 / 5 after 101 vote(s) | User comments: 11

Researchers at Delft University of Technology in The Netherlands have developed a technique for generating atom clusters made from silver and other metals. Surprisingly enough, these so-called super atoms ...


Powered by olive stones? Turning waste stones into fuel

October 29, 2008 | User rating: 4.2 / 5 after 9 vote(s) | User comments: 1

Olive stones can be turned into bioethanol, a renewable fuel that can be produced from plant matter and used as an alternative to petrol or diesel. This gives the olive processing industry an opportunity to make valuable ...


Study specifies chemical pathway for ions through the cell membrane

October 14, 2008 | User rating: 4.5 / 5 after 6 vote(s) | No comments yet

(PhysOrg.com) -- Life ultimately depends on the traffic of tiny charged particles through porous proteins studding the membrane surrounding every cell. In research published in Nature, scientists at The Rockefeller University ...


Mystery solved: Chemicals made Stradivarius violins unique, says professor

November 29, 2006 | User rating: 4.4 / 5 after 79 vote(s) | No comments yet

Answering a question that has lingered for centuries, a team of scientists has proved that chemicals used to treat the wood used in Stradivarius and Guarneri violins are the reasons for the distinct sound produced by the ...


Scientists discover new class of polymers

January 03, 2007 | User rating: 4.4 / 5 after 49 vote(s) | No comments yet

They said it couldn't be done. And that's what really motivated UD polymer chemist Chris Snively and Jochen Lauterbach, professor of chemical engineering at UD.


Promising new material that could improve gas mileage

October 09, 2008 | User rating: 4.8 / 5 after 8 vote(s) | User comments: 1

With gasoline at high prices, it's disheartening to know that up to three-quarters of the potential energy you are paying for is wasted. A good deal of it goes right out the tailpipe instead of powering your car.


Tale of two snails reveals secrets about the biochemistry of evolution

November 03, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet

Researchers in Spain are reporting deep new insights into how evolution changes the biochemistry of living things, helping them to adapt to new environments. Their study, based on an analysis of proteins produced ...


'Juiced-up' Sugar-Fueled Battery Could Power Portable Electronics

March 25, 2007 | User rating: 4.5 / 5 after 79 vote(s) | No comments yet

Juicing up your cell phone or iPod may take on a whole new meaning in the future. Researchers at Saint Louis University in Missouri have developed a fuel cell battery that runs on virtually any sugar source — from soft drinks ...


Device Uses Solar Energy to Convert Carbon Dioxide into Fuel (Update)

April 18, 2007 | User rating: 4.6 / 5 after 153 vote(s) | User comments: 1

Chemists at the University of California, San Diego have demonstrated the feasibility of exploiting sunlight to transform a greenhouse gas into a useful product.


Can genetic information be controlled by light?

October 10, 2008 | User rating: 5 / 5 after 12 vote(s) | No comments yet

Researchers at Kiel University have succeeded in showing that DNA strands differ in their light sensitivity depending on their base sequences. Their results are reported by Nina Schwalb and colleagues in the current issue ...


Tracking Down the Cause of Mad Cow Disease

October 07, 2008 | User rating: 4.5 / 5 after 8 vote(s) | User comments: 1

(PhysOrg.com) -- The cause of diseases such as BSE in cattle and Creutzfeld–Jakob disease in humans is a prion protein. This protein attaches to cell membranes by way of an anchor made of sugar and lipid components ...


Polymer electric storage, flexible and adaptable

August 20, 2008 | User rating: 4.4 / 5 after 37 vote(s) | User comments: 4

(PhysOrg.com) -- The proliferation of solar, wind and even tidal electric generation and the rapid emergence of hybrid electric automobiles demands flexible and reliable methods of high-capacity electrical storage. Now a ...


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