Lack of morning light keeping teenagers up at night

ScienceDaily (2010-02-27) -- The first field study on the impact of light on teenagers' sleeping habits finds that insufficient daily morning light exposure contributes to teenagers not getting enough sleep.

Malicious software: Hiding the honeypots

ScienceDaily (2010-02-27) -- Armies of networked computers that have been compromised by malicious software are commonly known as Botnets. Such Botnets are usually used to carry out fraudulent and criminal activity on the Internet. Now US computer scientists reveal that the honeypot trap designed to protect computers from Botnets are now vulnerable to attack because of advances in Botnet malware.

Climate change and coral reefs: Coral species has developed the 'skills' to cope with rising temperatures

ScienceDaily (2010-02-27) -- Marine reserves are increasingly important for species that are being forced by climate change to move to a new home, adapt to new conditions or die. Biologists have now compared the relative benefits of large and small protected areas in perpetuating populations. Interestingly they have also found a coral species that has developed the "skills" to cope with rising temperatures.

Fueling the future with fish tank residue: Scientist discusses use of algae as biofuel

ScienceDaily (2010-02-27) -- As Americans demand new and cleaner ways to meet the country's energy needs, researchers are turning to algae as a promising new fuel source. The approach has the potential to significantly reduce the nation's reliance on imported oil while contributing to rural economic development and lowering greenhouse emissions.

Rapid image analysis method helps diagnose Alzheimer's disease

ScienceDaily (2010-02-27) -- Scientists have developed a method for analysing MR images (MRI) in just a few minutes when diagnosing Alzheimer's disease. The accuracy of the analysis is comparable to manual measurements made by skilled professionals, which are currently considered the most reliable method for diagnosing Alzheimer's disease. The accurate and rapid analysis method is well suited for clinical use.

Dolphin cognitive abilities raise ethical questions, says Emory neuroscientist

ScienceDaily (2010-02-27) -- Many modern dolphin brains are significantly larger than those of humans and second in mass to the human brain when corrected for body size, says a scientist. Some dolphin brains exhibit features correlated with complex intelligence, including a large expanse of neocortical volume that is more convoluted than that of humans, extensive insular and cingulated regions, and highly differentiated cellular regions. This has ethical and policy considerations.

Tropics: Global warming likely to significantly affect rainfall patterns

ScienceDaily (2010-02-28) -- Ocean temperature patterns in the tropics and subtropics will change in ways that will lead to significant changes in rainfall patterns, according to new research.