Explained: RNA interference

Explained: RNA interference

Biology / Cell & Microbiology

created 2 hours ago | popularity 4 / 5 (1) | comments 0

Every high school biology student learns the basics of how genes are expressed: DNA, the cell’s master information keeper, is copied into messenger RNA, which carries protein-building instructions to the ribosome, ...


Earth's early ocean cooled more than a billion years earlier than thought: Stanford study

Earth's early ocean cooled more than a billion years earlier than thought (w/ Video)

Space & Earth / Earth Sciences

created 19 hours ago | popularity 4.6 / 5 (9) | comments 1

(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in 3.4 ...


A Tale of Planetary Woe

A Tale of Planetary Woe (w/ Video)

Space & Earth / Space Exploration

created 16 hours ago | popularity 4.1 / 5 (9) | comments 4

Once upon a time — roughly four billion years ago — Mars was warm and wet, much like Earth. Liquid water flowed on the Martian surface in long rivers that emptied into shallow seas. A thick atmosphere blanketed ...


Africa's rarest monkey had an intriguing sexual past, DNA study confirms

Africa's rarest monkey had an intriguing sexual past, DNA study confirms

Biology / Plants & Animals

created 20 hours ago | popularity 4.7 / 5 (7) | comments 0

The most extensive DNA study to-date of Africa's rarest monkey reveals that the species had an intriguing sexual past. Of the last two remaining populations of the recently discovered kipunji, one population ...


Google Wave Client

Many computer users hesitate to ride the Wave

Technology / Internet

created 15 hours ago | popularity 5 / 5 (1) | comments 3

Google's latest brainchild, Google Wave, is all the rage among bleeding-edge technology enthusiasts. But corporate information technology executives say that while they're intrigued by Wave -- a replacement ...


Review: Reports on Pfizer drug studies misleading

Medicine & Health / Medications

created 15 hours ago | popularity 4.7 / 5 (3) | comments 3

(AP) -- Analysis of a dozen published studies testing possible new uses for a Pfizer Inc. epilepsy drug found that reporting of the results was often fudged, indicating the medicine worked better than internal company documents ...


Vibrations key to efficiency of green fluorescent protein

Vibrations key to efficiency of green fluorescent protein

Chemistry / Biochemistry

created 19 hours ago | popularity 4.8 / 5 (5) | comments 0

University of California, Berkeley, chemists have discovered the secret to the success of a jellyfish protein whose green glow has made it the darling of biologists and the subject of the 2008 Nobel Prize ...


Microbial menagerie: Junk food binge alters community of microbes in the gut in less than a day

Medicine & Health / Research

created 15 hours ago | popularity 4 / 5 (5) | comments 3

(PhysOrg.com) -- Switching from a low-fat, plant-based diet to one high in fat and sugar alters the collection of microbes living in the gut in less than a day, with obesity-linked microbes suddenly thriving, according to ...


Churchill Downs Inc. owns the horse racing track which hosts the famed Kentucky Derby

Churchill Downs buying YouBet.com

Technology / Internet

created 3 hours ago | popularity not rated yet | comments 0

Churchill Downs Inc., owner of the horse racing track which hosts the famed Kentucky Derby, announced it has agreed to acquire online betting website YouBet.com.


Antarctic lake

Antarctic lake home to diverse community of viruses

Biology / Cell & Microbiology

created 23 hours ago | popularity 5 / 5 (13) | comments 1

(PhysOrg.com) -- A study of the genetic structure of viruses in an Antarctic lake has revealed an astonishing genetic richness in the large number of viral families discovered.


Despite some benefit, drug ads can be harmful to your health

Medicine & Health / Health

created 4 hours ago | popularity not rated yet | comments 0

While the debate over prescription drug advertising persists, a new study released online in the American Journal of Public Health offers guidelines for improving drug ads in order to minimize potential harm and maximize ...


Longevity tied to genes that preserve tips of chromosomes

Medicine & Health / Genetics

created 14 hours ago | popularity 5 / 5 (8) | comments 0

A team led by researchers at Albert Einstein College of Medicine of Yeshiva University has found a clear link between living to 100 and inheriting a hyperactive version of an enzyme that rebuilds telomeres - the tip ends ...


New evidence that dark chocolate helps ease emotional stress

New evidence that dark chocolate helps ease emotional stress

Chemistry / Biochemistry

created 20 hours ago | popularity 5 / 5 (2) | comments 2

The "chocolate cure" for emotional stress is getting new support from a clinical trial published online in ACS' Journal of Proteome Research.


Bing logo

Microsoft brings more Web data to Bing results; teams up with WolframAlpha

Technology / Internet

created 14 hours ago | popularity 3.5 / 5 (2) | comments 0

(AP) -- Microsoft's Bing search service will pull more information and tools from other Web sites as the company tries to distinguish itself as part of its challenge to market leader Google.


Energy-saving powder

Energy-saving powder: Converting methane to methanol

Chemistry / Other

created 20 hours ago | popularity 3.5 / 5 (4) | comments 2

It is currently estimated that natural gas resources will be exhausted in 130 years; however, those reserves where extraction is cost-effective will only flow for another 60 years or so.