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General Science news 1234

Aging gracefully requires taking out the trash

December 14, 2007 | User rating: 5 / 5 after 11 vote(s) | No comments yet

Suppressing a cellular cleanup-mechanism known as autophagy can accelerate the accumulation of protein aggregates that leads to neural degeneration. In an upcoming issue of Autophagy, scientists at ...


Mammalian protein plays unexpected role in cell division, and perhaps cancer

January 21, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

The French Nobel laureate Jacques Monod famously said, “What’s true for E.coli is true for an elephant.” With this in mind, researchers at Rockefeller University set out to determine the function of Tel2, a protein originally ...


'V-frog' virtual-reality frog dissection software offers first true physical simulation

February 09, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

V-Frog, the world’s first virtual-reality-based frog dissection software designed for biology education -- allowing not mere observation, but physically simulated dissection -- has been developed and is being marketed by ...


Rats on islands disrupt ecosystems from land to sea, researchers find

February 25, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

Seabird colonies on islands are highly vulnerable to introduced rats, which find the ground-nesting birds to be easy prey. But the ecological impacts of rats on islands extend far beyond seabird nesting colonies, ...


'Designer enzymes' created by chemists

March 19, 2008 | User rating: 5 / 5 after 25 vote(s) | User comments: 3

Chemists from UCLA and the University of Washington have succeeded in creating "designer enzymes," a major milestone in computational chemistry and protein engineering.


Digestive process affects anti-cancer activity of tea in gastrointestinal cells

April 07, 2008 | User rating: 5 / 5 after 8 vote(s) | No comments yet

Increased consumption of teas rich in catechins is associated with reduced risk of stomach, colon and other gastrointestinal cancers. However, the effects of digestion on the anticancer activity of tea catechins have largely ...


12 new species discovered in Brazil

April 29, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

Researchers discovered a legless lizard and a tiny woodpecker along with 12 other suspected new species in Brazil’s Cerrado, one of the world’s 34 biodiversity conservation hotspots.


Turning back the clock for Schwann cells

May 19, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

Myelin-making Schwann cells have an ability every aging Hollywood star would envy: they can become young again. According to a study appearing in the May 19 issue of the Journal of Cell Biology, David B. Parkinson ...


UK's organic cows are cream of the crop

May 27, 2008 | User rating: 5 / 5 after 11 vote(s) | User comments: 1

A new study by Newcastle University proves that organic farmers who let their cows graze as nature intended are producing better quality milk. The Nafferton Ecological Farming Group study found that grazing cows on organic ...


Self-Assembled Viruses

May 30, 2008 | User rating: 5 / 5 after 7 vote(s) | User comments: 2

Viruses are true experts at importing genetic material into the cells of an infected organism. This trait is now being exploited for gene therapy, in which genes are brought into the cells of a patient to treat genetic diseases ...


Tumor suppressor genes speed up and slow down aging in engineered mouse

May 30, 2008 | User rating: 5 / 5 after 12 vote(s) | No comments yet

Mayo Clinic researchers have developed an animal model that can test the function of two prominent tumor suppressor genes, p16 and p19, in the aging process. Scientists knew that both these genes were expressed at increased ...


From Canada to the Caribbean: Tree leaves control their own temperature

June 11, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

The temperature inside a healthy, photosynthesizing tree leaf is affected less by outside environmental temperature than originally believed, according to new research from biologists at the University of Pennsylvania.


How to build a plant

June 26, 2008 | User rating: 5 / 5 after 8 vote(s) | User comments: 1

Dr. Sarah Hake and her colleagues, George Chuck, Hector Candela-Anton, Nathalie Bolduc, Jihyun Moon, Devin O'Connor, China Lunde, and Beth Thompson, have taken advantage of the information from sequenced grass genomes to ...


RNA emerges from DNA's shadow

July 10, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

RNA, the transporter of genetic information within the cell, has emerged from the shadow of DNA to become one of the hottest research areas of molecular biology, with implications for many diseases as well as understanding ...


Genes that control embryonic stem cell fate identified

July 10, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

Scientists have identified about two dozen genes that control embryonic stem cell fate. The genes may either prod or restrain stem cells from drifting into a kind of limbo, they suspect. The limbo lies between the embryonic ...


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