ScienceDaily: Latest Science News |
| Thawing Permafrost Likely To Boost Global Warming, New Assessment Concludes Posted: 02 Sep 2008 10:00 AM CDT A new assessment more than doubles previous estimates of the amount of carbon stored in permafrost, and indicates that carbon dioxide emissions from microbial decomposition of organic carbon in thawing permafrost could amount to roughly half those resulting from global land-use change during this century.  |
| Teflon: Chemists Break Harmful Bonds Posted: 02 Sep 2008 10:00 AM CDT Everybody loves the way eggs slide off of Teflon pans. Indeed, the carbon-fluorine bond at the heart of Teflon cookware is so helpful we also use it in products from clothing to blood substitutes. But the very strength of the C-F bond also gives it greenhouse gas effects. In the journal Science, researchers report a catalyst that breaks the C-F bond and converts it to a carbon-hydrogen bond, rendering it harmless to the environment.  |
| New Giant Clam Species Offers Window Into Human Past Posted: 02 Sep 2008 10:00 AM CDT Researchers report the discovery of the first new living species of giant clam in two decades.  |
| Kids Still Drinking Too Much Soda, Even When Not Available At School Posted: 02 Sep 2008 10:00 AM CDT In May 2006, an agreement was reached by the Alliance for a Healthier Generation and the American Beverage Association on voluntary sales restrictions on "competitive foods" such as soft drinks at schools. However, researchers now say limiting the availability of soft drinks at school may not be enough to affect overall consumption among elementary school children.  |
| Sleight Of Hand And Sense Of Self: Illusion Isn't Always Just In The Mind Posted: 02 Sep 2008 07:00 AM CDT An illusion that tricks people into believing a rubber hand belongs to them isn't all in the mind, researchers have found. They have observed a physical response as well, a finding that offers insight into conditions which affect a patient's sense of self and body ownership, such as stroke, schizophrenia, autism, or eating disorders.  |
| Researchers Devise Means To Create Blood By Identifying Earliest Stem Cells Posted: 02 Sep 2008 07:00 AM CDT Researchers have discovered the earliest form of human blood stem cells and deciphered the mechanism by which these embryonic stem cells replicate and grow. They also found a surprising biological marker that pinpoints these stem cells, which serve as the progenitors for red blood cells and lymphocytes.  |
| Analysis Begins On Phoenix Mars Lander's Deepest Soil Sample Posted: 02 Sep 2008 07:00 AM CDT Scientists have begun to analyze a sample of soil delivered to NASA's Phoenix Mars Lander's wet chemistry experiment from the deepest trench dug so far in the Martian arctic plains.  |
| DNA Tubes Created With Programmable Sizes For Nanoscale Manufacturing Posted: 02 Sep 2008 07:00 AM CDT Scientists have developed a simple process for mass producing molecular tubes of identical -- and precisely programmable -- circumferences. The technological feat may allow the use of the molecular tubes in a number of nanotechnology applications.  |
| Campus Diversity Important Predictor Of Interracial Friendships Posted: 02 Sep 2008 07:00 AM CDT Campus racial diversity predicts diversity in future friendships, and it's generally higher for minorities than whites.  |
| Bonobos May Have Greater Linguistic Skills Than Previously Thought Posted: 02 Sep 2008 04:00 AM CDT What happens when linguistic tools used to analyze human language are applied to a conversation between a language-competent bonobo and a human? New findings indicate that bonobos may exhibit larger linguistic competency in ordinary conversation than in controlled experimental settings.  |
| Gray’s Reef National Marine Sanctuary In Fair Condition, Facing Emerging Threats Posted: 02 Sep 2008 04:00 AM CDT A new NOAA report on the health of Gray's Reef National Marine Sanctuary indicates that the overall condition of the sanctuary's marine life and habitats is fair. The report also identifies several emerging threats to sanctuary resources, including non-indigenous marine species, overfishing, waterborne chemicals from human coastal activities, and increased recreational use of the site.  |
| Train Safety: Season Of Mists And Leaves On The Line Posted: 02 Sep 2008 04:00 AM CDT The season of mists, mellow fruitfulness, and leaves on the line is almost upon us. But, scientists have discovered that rather than blaming the train companies, passengers suffering annual delays should look to the weather forecast. According to research published in the International Journal of Surface Science and Engineering, it is a dry period followed by drizzly or misty weather that leads to the worst conditions for leaves on the line.  |
| Low-income? No Car? Expect To Pay More For Groceries Posted: 02 Sep 2008 04:00 AM CDT Households located in poor neighborhoods pay more for the same items than people living in wealthy ones, according to a new study.  |
| Posted: 02 Sep 2008 01:00 AM CDT Hebrew University excavations in the north of Israel have revealed a prehistoric funerary precinct dating back to 6,750-8,500 BCE. The precinct, a massive walled enclosure measuring 10 meters by at least 20 meters, was discovered at excavations being undertaken at Kfar HaHoresh. The Pre-Pottery Neolithic B site in the Nazareth hills of the lower Galilee is interpreted as having been a regional funerary and cult center for nearby lowland villages.  |
| Biophysical Method May Help To Recover Hearing Posted: 02 Sep 2008 01:00 AM CDT Scientists have created a biophysical methodology that may help to overcome hearing deficits, and potentially remedy even substantial hearing loss. The authors propose a method of retuning functioning regions of the ear to recognize frequencies originally associated with damaged areas.  |
| Bitter-tasting Nectar And Floral Odors Optimize Outcrossing For Plants Posted: 02 Sep 2008 01:00 AM CDT Experiments with genetically modified plants reveal new aspects on the biochemistry of flowers. Scientists have discovered how the chemistry of nectar and floral scents enforces good pollinator behavior, enabling plants to optimize the production of out-crossed seeds.  |
| Grain Moisture Measurements May Divert Mold, Insect Infestation Posted: 02 Sep 2008 01:00 AM CDT Grain storage bins are routinely monitored for temperature to control insect and mold problems. Now an scientists have preliminary research findings showing that monitoring carbon dioxide -- along with humidity and temperature -- also may help detect problems more effectively.  |
| A Room With A Viewpoint: Conservation Messages And Motivation Posted: 02 Sep 2008 01:00 AM CDT People are more likely to reuse hotel towels if they know other guests are doing it too.  |
| New Endometrial Cancer Treatment Stops Growth Of Tumors And Kills Cancer Cells, Study Shows Posted: 31 Aug 2008 11:00 PM CDT A new approach to treating endometrial cancer patients not only stops the growth of tumors, but also kills the cancer cells. In a potentially major breakthrough, scientists discovered that introducing a particular inhibitor drug can turn "off'' receptors responsible for the growth of tumors in a significant number of patients with endometrial cancer.  |
| Cinnamon-based Packaging To Prevent Mold In Bread And Other Baked Goods Posted: 31 Aug 2008 11:00 PM CDT Bread that goes moldy is the bane of consumers and bakers alike, ruining appetites and wasting food and money. Now, researchers have developed a new type of paper packaging made with cinnamon oil that appears to prolong the freshness of bread and other baked goods by up to 10 days.  |
| New Evidence On Folic Acid In Diet And Colon Cancer Posted: 31 Aug 2008 11:00 PM CDT Researchers are reporting a new, more detailed explanation for the link between low folate intake and an increased risk for colon cancer, the second leading cause of cancer death in the United States.  |
| 'Lab On A Chip' Improves Success Of In Vitro Fertilization Posted: 31 Aug 2008 11:00 PM CDT In a finding that could boost the success rate of in vitro fertilization (IVF), researchers report development of a tiny "lab on a chip" to evaluate the fitness of embryos harvested for transfer.  |
| Hospitals Provide Formula Sample Packs While Medical Organizations Encourage Breastfeeding Posted: 31 Aug 2008 11:00 PM CDT A majority of US hospitals on the East coast distribute formula sample packs to new mothers, contrary to recommendations from most major medical organizations concerned about the potential for distributing these packs to reduce breastfeeding rates, according to a new report.  |
| Depression Common Among Rwandan Youth Who Head Households Posted: 31 Aug 2008 11:00 PM CDT More than half of orphaned youth age 12 to 24 who head households in rural Rwanda meet criteria for depression, according to a new report.  |
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