New Hybrid Vehicle Given Its First Test Drive In The Ocean
New Hybrid Vehicle Given Its First Test Drive In The Ocean
Taking a page out of a science fiction story, researchers have successfully flown the first environmentally powered robotic vehicle through the ocean. The new robotic "glider" harvests heat energy from the ocean to propel itself across thousands of kilometers of water. Unlike motorized, propeller-driven vehicles, gliders propel themselves through the ocean by changing their buoyancy to dive and surface. Wings generate lift, while a vertical tail fin and rudder allow the vehicles to be steered horizontally. Gliding underwater vehicles trace a saw-tooth profile through the ocean's layers, surfacing periodically to fix their positions via the Global Positioning System and to communicate via Iridium satellite to a shore lab.
Fatal Copper Disorder Can Now Be Detected At Birth
A new test could greatly extend the survival of infants with Menkes disease, a rare, otherwise fatal disorder of copper metabolism. The test allows for early diagnosis of the condition, when the chance for successful treatment is greatest.
Lower Transmission Increases Dengue Deaths
A pair of researchers has answered a puzzle about why efforts to lower the transmission of dengue virus in Thailand have actually increased the severe, life-threatening, form of the infection. Lower transmission rates lead to increased risk of severe infection because of an immune system response.
Thin Bones Seen In Boys With Autism And Autism Spectrum Disorder
Results of an early study suggest that dairy-free diets and unconventional food preferences could put boys with autism and autism spectrum disorder (ASD) at higher than normal risk for thinner, less dense bones when compared to a group of boys the same age who do not have autism. The researchers believe that boys with autism and ASD are at risk for poor bone development for a number of reasons. These factors are lack of exercise, a reluctance to eat a varied diet, lack of vitamin D, digestive problems, and diets that exclude casein, a protein found in milk and milk products.
Calcium Channel Blockers Help Normalize Lysosomal Storage Disease Cells
Scientists have discovered that two widely available prescription drugs restore partial cellular folding, trafficking, and function to a variety of mutant enzymes responsible for three distinct lysosomal storage diseases, maladies involving multiple organ system failure. This discovery may increase treatment options for inherited metabolic disease patients.
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