ScienceDaily: Top News |
- Patient selection for bilateral total knee replacement needs improvement
- Potentially dangerous new malaria mosquito identified
- Time bomb: Military ordnance in Gulf of Mexico poses threat to shipping, says expert
- Marine plants can flee to avoid predators: First observation of predator avoidance behavior by phytoplankton
- Therapy over the phone as effective as face-to-face, study suggests
- White shark diets vary with age and among individuals
- New European statistics released on heart disease and stroke
- Lack of sleep leads to insulin resistance in teens
- Prostate cancer testing and treatment guidelines developed
| Patient selection for bilateral total knee replacement needs improvement Posted: 29 Sep 2012 11:04 AM PDT Because there are more risks with having a total knee replacement in both legs at the same time than having a knee replacement in one leg, doctors in recent years have been selecting younger and healthier patients for the bilateral procedure. Now a new study has revealed that although patients are younger and healthier than those undergoing only one-sided surgery, they are becoming sicker and some complication rates have risen.  |
| Potentially dangerous new malaria mosquito identified Posted: 29 Sep 2012 11:03 AM PDT Entomologists recently discovered a potentially dangerous new malaria-transmitting mosquito. The as yet unnamed, and previously unreported, mosquito breeds in the western areas of Kenya and has an unknown DNA match to any of the existing malaria-transmitting species.  |
| Time bomb: Military ordnance in Gulf of Mexico poses threat to shipping, says expert Posted: 29 Sep 2012 11:03 AM PDT Millions of pounds of unexploded bombs and other military ordnance that were dumped decades ago in the Gulf of Mexico, as well as off the coasts of both the Atlantic and Pacific oceans, could now pose serious threats to shipping lanes and the 4,000 oil and gas rigs in the Gulf, warns oceanographers.  |
| Posted: 29 Sep 2012 11:03 AM PDT Scientists have made the first observation of a predator avoidance behavior by a species of phytoplankton, a microscopic marine plant. The scientists made the unexpected observation while studying the interactions between phytoplankton and zooplankton.  |
| Therapy over the phone as effective as face-to-face, study suggests Posted: 29 Sep 2012 11:02 AM PDT A new study reveals that cognitive therapy over the phone is just as effective as meeting face-to-face.  |
| White shark diets vary with age and among individuals Posted: 29 Sep 2012 11:02 AM PDT White sharks, the largest predatory sharks in the ocean, are thought of as apex predators that feed primarily on seals and sea lions. But a new study shows surprising variability in the dietary preferences of individual sharks.  |
| New European statistics released on heart disease and stroke Posted: 29 Sep 2012 11:02 AM PDT New figures released to mark World Heart Day show a significant improvement in Europe's heart health. These figures represent the first comprehensive overview of the impact of cardiovascular disease since 2008.  |
| Lack of sleep leads to insulin resistance in teens Posted: 29 Sep 2012 11:02 AM PDT A new study suggests that increasing the amount of sleep that teenagers get could improve their insulin resistance and prevent the future onset of diabetes.  |
| Prostate cancer testing and treatment guidelines developed Posted: 29 Sep 2012 11:02 AM PDT New prostate cancer articles review and clarify recent updates made to the National Comprehensive Cancer Network's guidelines for the screening and treatment of prostate cancer.  |
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Paul MacCready, born 29 Sep 1925, is an American aerodynamicist who headed a team that designed and built both the first man-powered aircraft and the first solar-powered aircraft capable of sustained flights. On 23 Aug 1977, the man-powered aircraft successfully demonstrated sustained, maneuverable manpowered flight. 
Can you name this man-powered aircraft? 
Rudolf Diesel (1858-1913) was a German thermal engineer who was also a distinguished connoisseur of the arts, a linguist, and a social theorist.
On 29 Sep 1891, a U.S. patent was issued to an inventor for a "Process of and Apparatus for Generating Electricity" and on 29 Sep 1914, a patent for a "Phonograph-Record" was granted to the same man. 
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