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168,089 articles from ScienceDaily

Novel Temperature Calibration Improves Microhotplate Technology

Researchers have developed a new calibration technique that will improve the reliability and stability of the microhotplate -- a novel device being developed as the foundation for miniature yet highly accurate gas sensors that can detect chemical and biological agents, industrial leaks and even signs of extraterrestrial life from aboard a planetary...

Strong Link Found Between Concussions And Brain Tissue Injury

Concussions, whether from an accident, sporting event, or combat, can lead to permanent loss of higher level mental processes. Scientists have debated for centuries whether concussions involve structural damage to brain tissue or whether physiological changes that merely impair the way brain cells function, explain this loss. Now, for the first time, researchers have linked areas of brain injury...

Blossoms Of Maturity: Newly Discovered Signaling Pathway Ensures That Plants Remember To Flower

Plants normally flower in response to seasonal changes, such as those associated with the end of winter or beginning of spring. Scientists have now identified a signaling pathway that allows plants to blossom even without positive signals from the environment. The concentration of a small RNA snippet in plants cells operates like an hour glass: a decline in its level awakes the plant from its...

New Species Of Crustacean Discovered Near Canary Islands

During a cave diving expedition to explore the Tunnel de la Atlantida, the world's longest submarine lava tube on Lanzarote in the Canary Islands, a team of scientists and cave divers have discovered a previously unknown species of crustacean, belonging to the remipede genus...

Parkinson's Disease: When Cells Run Out Of Fuel

Insights into the function of Parkinson's genes can help to understand the causes of this neurodegenerative disease -- and to develop new therapies. Researchers have now discovered that two Parkinson's genes ensure the energy supply of neurons involved in Parkinson's disease.

Employees Who Are Engaged In Their Work Have Happier Home Life

Psychology researchers studied how positive work experiences extend into family life and facilitate family interactions. They found that employees who are engaged in their work, which includes higher levels of vigor, more dedication and absorption in daily activities, have better moods and more satisfaction at...

Many Online Social Networks Leak Personal Information To Tracking Sites, New Study Shows

More than a half billion people use online social networks, posting vast amounts of information about themselves to share with online friends and colleagues. A new study has found that the practices of many popular social networking sites typically make that personal information available to companies that track Web users' browsing habits, and allow them to link anonymous browsing habits to...

Scientists Shed New Light On Behavior Of Shark 'Tweens' And 'Teenagers'

Marine biologists have shown that young lemon sharks born in Bimini, Bahamas, tend to stay near their coastal birthplace for many years. Knowledge about these intermediate-aged animals -- the breeders of tomorrow -- has been limited. Thus, tropical island-nations that sacrifice their nursery habitats to coastal development are therefore likely to lose both babies and much older sharks, with...

Why 'Thick' Blood Protects From A Heart Attack

"Thick" blood can cause heart attack and stroke, but also prevent them. Scientists have explained the mechanism of this clinical paradox for the first time on an animal model. Mice with a greater tendency to form blood clots have larger plaques in their vessels, but they are more stable. Thus, there is less risk that these plaques will rupture and obstruct...

First Measure Of Africa's Coastal Forests: Swampy Mangrove Destruction Threatens Shrimp Farming

Impoverished fishermen along the coast of tropical African countries like Mozambique and Madagascar may have only a few more years to eke out a profit from one of their nations' biggest agricultural exports. Within a few decades, they may no longer have a livelihood at all. That's because swampy mangrove forests – essential breeding grounds for fish and shellfish in these countries – are being...


MONDAY 24. AUGUST 2009


Faults And Earthquakes In China Monitored From Space

China is in a very seismically active area and has had many catastrophic earthquakes during its history. A joint European-Chinese team is using satellite radar data to monitor ground deformation across major continental faults in China to understand better the seismic cycle and how faults...

Tobacco Plants Yield First Vaccine For Dreaded 'Cruise Ship Virus'

Scientists have used a new vaccine production technology to develop a vaccine for norovirus, a dreaded cause of diarrhea and vomiting that may be the second most common viral infection in the United States after the flu. Sometimes called the "cruise ship virus," this microbe can spread like wildfire through passenger liners, schools, offices and military...

Genetic Analysis Reveals Secrets Of Scorpion Venom

Transcriptomic tests have uncovered the protein composition of venom from the Scorpiops jendeki scorpion. Researchers have carried out the first ever venom analysis in this arachnid, and discovered nine novel poison molecules never before seen in any scorpion species.