ScienceDaily: Top News

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• Unhealthy eating can make a bad mood worse
• Drug-resistant MRSA bacteria: Here to stay in both hospital and community
• Kangaroos and other marsupials: Climb to the pouch begins in utero
• Depression in kids linked to cardiac risks in teens
• A youthful 'star wreck': Youngest-known supernova remnants in our Milky Way galaxy
• Mobile LIDAR technology expanding rapidly
• Discovery could yield treatment for cocaine addicts
• New microscope measures nanomagnet property vital to 'spintronics'
• Dating in middle school leads to higher dropout, drug-use rates, study suggests
• Scientists produce cloned embryos of extinct frog
• New insights on invasive fly threatening US fruit crops
• We are still at risk of the plague, new study says
• Communications technology among tools needed to aid miner safety
• Improved detection of frontotemporal degeneration may aid clinical trial efforts
• Tau transmission model opens doors for new Alzheimer's, Parkinson's therapies
• For smokers, low levels of vitamin D may lead to cancer
• No clear evidence that decline in hormone replacement therapy use linked to fall in breast cancer
• New cells in the urethra discovered which may detect hazardous substances
• Alcohol, fibromyalgia, and quality of life
• Chemicals pollutants threaten health in the Arctic
• Know thyself: How mindfulness can improve self-knowledge
• Immune finding aids quest for vaccines to beat tropical infections
• Coffee, green tea, may help lower stroke risk
• How vitamin E can help prevent cancer
• Ancient rock art at risk, warn experts

Unhealthy eating can make a bad mood worse Posted: 15 Mar 2013 05:27 PM PDT Taking part in unhealthy eating behaviors may cause women who are concerned about their diet and self-image to experience a worsening of their moods, according to researchers.

Drug-resistant MRSA bacteria: Here to stay in both hospital and community Posted: 15 Mar 2013 05:27 PM PDT The drug-resistant bac­te­ria known as MRSA, once con­fined to hos­pi­tals but now wide­spread in com­mu­ni­ties, will likely con­tinue to exist in both set­tings as sep­a­rate strains, accord­ing to a new study.

Kangaroos and other marsupials: Climb to the pouch begins in utero Posted: 15 Mar 2013 05:27 PM PDT Scientists have visualized the short pregnancy of a small species of the kangaroo and wallaby family of marsupials, the tammar wallaby (Macropus eugenii), for the first time by high-resolution ultrasound. The study has shed light on a number of developmental events that are likely to be fundamental to all marsupials. These include a very rigid program of embryonic and fetal development with very little variation in pregnancy length, specialized movements of the endometrium that roll the embryo around the uterus prior to attachment, and climbing movements of the tiny fetus up to three days before birth. This latter finding is one of the earliest developmental behaviors observed in a mammal and prepares the immature young for the journey to its mother's pouch.

Depression in kids linked to cardiac risks in teens Posted: 15 Mar 2013 05:26 PM PDT Teens who were depressed as children are far more likely than their peers to be obese, smoke cigarettes and lead sedentary lives, even if they no longer suffer from depression. The research suggests that depression, even in children, can increase the risk of heart problems later in life.

A youthful 'star wreck': Youngest-known supernova remnants in our Milky Way galaxy Posted: 15 Mar 2013 12:13 PM PDT While performing an extensive X-ray survey of our galaxy's central regions, NASA's Swift satellite has uncovered the previously unknown remains of a shattered star. Designated G306.3.9 after the coordinates of its sky position, the new object ranks among the youngest-known supernova remnants in our Milky Way galaxy.

Mobile LIDAR technology expanding rapidly Posted: 15 Mar 2013 12:12 PM PDT A new report on the uses and current technology of mobile LIDAR has just been completed and will help more managers and experts understand, use and take advantage of this science that promises to change the way we see and record the world around us.

Discovery could yield treatment for cocaine addicts Posted: 15 Mar 2013 12:12 PM PDT Scientists have discovered a molecular process in the brain triggered by cocaine use that could provide a target for treatments to prevent or reverse addiction to the drug.

New microscope measures nanomagnet property vital to 'spintronics' Posted: 15 Mar 2013 12:12 PM PDT Researchers have developed a new microscope able to view and measure an important but elusive property of the nanoscale magnets used in an advanced, experimental form of digital memory. The new instrument already has demonstrated its utility with initial results that suggest how to limit power consumption in future computer memories.

Dating in middle school leads to higher dropout, drug-use rates, study suggests Posted: 15 Mar 2013 12:10 PM PDT Students who date in middle school have significantly worse study skills, are four times more likely to drop out of school and report twice as much alcohol, tobacco and marijuana use than their single classmates, according to new research.

Scientists produce cloned embryos of extinct frog Posted: 15 Mar 2013 12:10 PM PDT As part of a "Lazarus Project" to try to bring the Australian gastric-brooding frog back from extinction scientists have succeeded in producing early stage cloned embryos containing the DNA of the frog, which died out 30 year ago. Gastric-brooding frogs were unique in incubating their young in their stomachs.

New insights on invasive fly threatening US fruit crops Posted: 15 Mar 2013 12:10 PM PDT Humans aren't the only species with a sweet tooth. Research shows that the invasive spotted-wing vinegar fly (Drosophila suzukii) also prefers sweet, soft fruit -- giving us new insight into a species that has spread across the United States over the past four years and threatens to cause hundreds of millions of dollars in damage to US fruit crops.

We are still at risk of the plague, new study says Posted: 15 Mar 2013 12:09 PM PDT Today archaeologists unearthed a 'Black Death' grave in London, containing more than a dozen skeletons of people suspected to have died from the plague. The victims are thought to have died during the 14th century and archaeologists anticipate finding many more as they excavate the site. The Plague is by definition a re-emerging infectious disease which affects the lungs and is highly contagious, leading to mass outbreaks across populations.

Communications technology among tools needed to aid miner safety Posted: 15 Mar 2013 12:08 PM PDT A new report identifies tools that would help miners devise their own means of escape when trapped underground.

Improved detection of frontotemporal degeneration may aid clinical trial efforts Posted: 15 Mar 2013 12:08 PM PDT A series of studies demonstrate improved detection of the second most common form of dementia, providing diagnostic specificity that clears the way for refined clinical trials testing targeted treatments.

Tau transmission model opens doors for new Alzheimer's, Parkinson's therapies Posted: 15 Mar 2013 12:08 PM PDT Injecting synthetic tau fibrils into animal models induces Alzheimer's-like tau tangles and imitates the spread of tau pathology, according to new research.

For smokers, low levels of vitamin D may lead to cancer Posted: 15 Mar 2013 12:08 PM PDT New research shows that decreased levels of vitamin D may predispose smokers to developing tobacco-related cancer. This study illustrates that simple vitamin D blood tests and supplements have the potential to improve smokers' health.

No clear evidence that decline in hormone replacement therapy use linked to fall in breast cancer Posted: 15 Mar 2013 04:47 AM PDT There is no clear evidence that the decline in the use of hormone replacement therapy is linked to a reported fall in the numbers of new cases of breast cancer, as has been claimed, suggests a new study.

New cells in the urethra discovered which may detect hazardous substances Posted: 15 Mar 2013 04:47 AM PDT A recent study has revealed the presence of a previously unknown cell in the urethra of mice. These chemosensory cholinergic brush cells are in close contact to sensory neurons that express cholinergic receptors.

Alcohol, fibromyalgia, and quality of life Posted: 15 Mar 2013 04:46 AM PDT Low and moderate drinkers of alcohol reported lower severity of symptoms of fibromyalgia than teetotallers, finds a study. Too much alcohol reversed this effect. The chronic pain of fibromyalgia is thought to affect one in 20 people worldwide but there is no known cause or cure. It often goes hand in hand with fatigue and sleep problems, headaches, depression and irritable bowel and bladder problems. Treatment is based around pain management and lifestyle changes.

Chemicals pollutants threaten health in the Arctic Posted: 15 Mar 2013 04:45 AM PDT People living in Arctic areas can be more sensitive to pollutants due to their genetics. This is unfortunate since the northernmost areas of Europe are receiving more harmful chemicals. Scientists believe climate change may be a culprit as air and water mass movements push some of these undesirable chemicals towards the Arctic.

Know thyself: How mindfulness can improve self-knowledge Posted: 14 Mar 2013 03:02 PM PDT Mindfulness -- paying attention to one's current experience in a non-judgmental way -- might help us to learn more about our own personalities, according to a new article.

Immune finding aids quest for vaccines to beat tropical infections Posted: 14 Mar 2013 03:01 PM PDT Scientists are a step closer to developing vaccines for a range of diseases that affect 200 million people, mainly in tropical Southeast Asia, Africa and Central America.

Coffee, green tea, may help lower stroke risk Posted: 14 Mar 2013 03:01 PM PDT Green tea and coffee may help lower your risks of having a stroke, especially when both are a regular part of your diet. People who drank either green tea or coffee daily had about approximately 20~30 percent lower risk for one type of stroke, compared to those who seldom drank them.

How vitamin E can help prevent cancer Posted: 14 Mar 2013 02:56 PM PDT Researchers have identified an elusive anti-cancer property of vitamin E that has long been presumed to exist, but difficult to find.

Ancient rock art at risk, warn experts Posted: 14 Mar 2013 09:43 AM PDT Urgent action is needed to prevent ancient art disappearing, experts have warned.

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