In the News
Slashdot's CmdrTaco Rob Malda Looks Back at 10 Years of 'News for Nerd
The popular site hits the decade mark this month, with geek celebrations popping up all around the country. Check out Wired News' interview with Slashdot founder Rob Malda. Can Heart Tissue Be Regenerated? Mature Heart Cells, Given The Right E
When human hearts are injured, as during a heart attack, healthy tissue normally can't regrow. Researchers now demonstrate in rats that a sponge-like patch, soaked in a compound called periostin and placed over the injury, can not only get heart cells to begin dividing and making copies of themselves again, but also improves heart function. Their findings appear in the July 15 online edition of Nature Medicine. What Was Your Sex Soundtrack?
Recent headlines stoke nostalgia about the music that played as we let go our innocence. In Sex Drive Daily. Polar Bears Threatened By Hunting Policy Favoring The Killing Of Male
Policies that encourage hunters to go after male polarbears in order to conserve females, could make it harder for the animals to find mates. Researchers determined there is a critical threshold in the male-to-female ratio. Below it, their model predicts a sudden and rapid collapse in fertilization rates. Check Colon Tumors For Signs Of Syndrome, Study Suggests
A new study suggests that, after surgery, all colon tumors should be tested to learn if the patient may have an inherited syndrome that carries an extremely high risk of cancer. It also suggests that this prescreening can be done using a relatively inexpensive microscopy test already used in hospital pathology laboratories. Stellar Firework In A Whirlwind
In July 2006, ESO's Very Large Telescope took images of a stellar firework in the spiral galaxy NGC 1288. The supernova -- designated SN 2006dr -- was at its peak brightness, shining as bright as the entire galaxy itself, bearing witness to the amount of energy released. Gay Men Navigate In A Similar Way To Women, Virtual Reality Researcher
Researchers used virtual reality scenarios to investigate if spatial learning and memory in humans can be linked to sexual orientation. Differences in spatial learning and memory (our ability to record and recall information about our environment) are common between men and women. It has been shown that men consistently outperform women on tasks requiring navigation and discovering hidden objects; whereas women are more successful at tests which require them to remember where those objects lie in a particular space. This is the first study to investigate if those differences are also true for gay, lesbian and straight individuals. Bees, Brains And Addiction
To understand the complex processes in the human brain that lead to addiction, some researchers at UCSD have turned to bees. Granted, the brains of humans and bees don't look much alike. But how bees respond to simple rewards, such as food, can tell scientists much about the workings of the primitive portion of our brains that lead some of us to become addicted to tobacco, alcohol or other drugs. Why Biological Loads Do Not Get Caught Up When Being Transported Throu
Scientists from the Max Planck Institute for Molecular Cell Biology and Genetics (MPI-CBG) in Dresden, along with a colleague from the University of Florida in the United States, have been carrying out research into how transport proteins can move in cells without bumping into or sticking to anything. Using an ultra-sensitive microscopy method, the researchers have defined how the motor protein Kinesin-1 interacts with its "transport rails", the microtubules, based on a nanometer scale. The motor protein stays at a distance of 17 nanometers from the microtubules, which explains how it manages to carry its load to its destination without collisions. Bioenergy Crops Compared: Miscanthus More Productive Than Switchgrass
Scientists will present findings on how to economically and efficiently produce plant crops suitable for sustainable bioenergy. Improving the production of such biomass is important because it should significantly ease and eventually replace dependence on petroleum-based fuels. Biomass is plant material, vegetation or agricultural waste used as fuel.
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