ScienceDaily: Latest Science News

---

• Selective imprinting: how the wallaby controls growth of its young
• Reducing the side effects of treatment for prostate cancer
• How a virus might make you diabetic later in life
• NASA rover returns voice and telephoto views from Mars
• New maps may reduce tourism impacts on Hawaiian dolphins
• Oldest occurrence of arthropods preserved in amber: Fly, mite specimens are 100 million years older than previous amber inclusions
• Study questions technique to repair ruptured abdominal aortic aneurysms
• Link between protein and aggressive, recurring prostate cancer discovered
• Scientist sees Arctic ice loss firsthand
• Frankenstein programmers test a cybersecurity monster
• Speaking two languages also benefits low-income children
• Divorced parents in hostile relationships use technology to sabotage communication
• Working moms spend less time daily on kids' diet, exercise
• Midlife fitness staves off chronic disease at end of life
• Neandertal's right-handedness verified, hints at language capacity
• Parents and readers: Beware of stereotypes in young adult literature, researcher says
• Oceanic mystery solved: Connection between 'monster larva' and unique species of shrimp
• Links between nutrients, genes and cancer spread documented
• Panda preferences influence trees used for scent marking
• Plants unpack winter coats when days get shorter
• Arctic sea ice shrinks to new low in satellite era
• Adolescent pot use leaves lasting mental deficits; Developing brain susceptible to lasting damage from exposure to marijuana
• Long-held theory on human gestation refuted: Mother’s metabolism, not birth canal size, limits gestation
• One third less life on planet Earth? Scientists offer better estimate of living biomass
• Planning ahead: Consumers prefer fewer options when thinking about the future
• Study questions recommendation to discontinue LABA therapy in asthma patients
• Short- and mid-term cardiovascular effects of Japan's 2011 earthquake and tsunami: Incidence rises with the seismic peak
• Darwin discovered to be right: Eastern Pacific barrier is virtually impassable by coral species
• Why some fats are worse than others
• Diagnostic 'fatal flaws' in the ICU may account for as many annual deaths as breast cancer, patient safety team finds
• Cooled coal emissions would clean air and lower health and climate-change costs
• Study explores injury risk in military Humvee crashes
• Media violence consumption increases the relative risk of aggression, analysis shows
• Arctic sea ice reaches lowest extent ever recorded
• Fossil skeleton of strange, ancient digging mammal clears up 30-year-old evolutionary debate
• The effects of discrimination could last a lifetime
• Probiotics supercharge plants' immunity to disease
• Advanced tornado/hurricane shelter panels from recycled materials
• Compounds activate key cancer enzyme to interfere with tumor formation
• Controlling superconductors with light
• Fitting Kv potassium channels in the PIP2 puzzle
• The role of genes in political behavior
• New model of muscular dystrophy provides insight into disease development
• Studying how diseases spread in primates may help predict what diseases will emerge in humans
• Limiting TV time: An effective strategy for preventing weight gain in children
• Vitamin B3 may offer new tool in fight against staph infections, 'superbugs'
• Lack of sleep found to be a new risk factor for aggressive breast cancers
• pH-sensitive liposomal cisplatin improves peritoneal carcinomatosis treatment without side-effects
• Scientists discover nerves control iridescence in squid's remarkable 'electric skin'
• Little evidence supports autism treatment options in adolescents
• Super glue: Tests show that adhesive could improve safety of LASIK eye surgery
• To cap or not to cap: Scientists find new RNA phenomenon that challenges dogma
• Unexpected findings at multi-detector CT scans: Less reason to worry
• Smoking after stroke increases death risk three-fold, researchers find
• Lifestyle changes could prevent 400 cardiac events and 200 deaths in Swedish PCI patients
• Global platelet reactivity identifies high risk ACS patients more effectively than responsiveness to clopidogrel
• Leg compressions may enhance stroke recovery
• Breast milk promotes a different gut flora growth than infant formulas
• Precise and persistent cell sabotage: Control of siRNA could aid regenerative medicine, cancer therapy
• How ocean currents affect global climate becoming better understood

Selective imprinting: how the wallaby controls growth of its young Posted: 27 Aug 2012 05:57 PM PDT Marsupial mothers regulate the composition of their milk so that it is optimal for the development stage of their young. New research shows that, similar to the human placenta, which regulates embryonic growth and development, insulin appears to be imprinted in the marsupial mammary gland.

Reducing the side effects of treatment for prostate cancer Posted: 27 Aug 2012 05:57 PM PDT New research reassessing clinical data from trials, which investigate ways of treating side effects of therapy for prostate cancer, finds that tamoxifen, an anti-estrogen used to treat breast cancer, is also able to suppress gynecomastia and breast pain in men. Prostate cancer is one of the most common cancers in men and early treatment is usually very successful.

How a virus might make you diabetic later in life Posted: 27 Aug 2012 05:57 PM PDT Cytomegalovirus (CMV) is one of the viruses that most infected people carry without ill effects. Once infected you are infected for life and, although it normally is dormant, it can become active again at any point in time. New research shows that CMV infection is a significant risk factor for the type 2 diabetes in the elderly.

NASA rover returns voice and telephoto views from Mars Posted: 27 Aug 2012 04:19 PM PDT NASA's Mars Curiosity has debuted the first recorded human voice that traveled from Earth to another planet and back. The voice playback was released along with new telephoto camera views of the varied Martian landscape.

New maps may reduce tourism impacts on Hawaiian dolphins Posted: 27 Aug 2012 03:00 PM PDT Over-eager eco-tourists intent on seeing spinner dolphins up close may inadvertently be disturbing the charismatic animals' daytime rest periods and driving them out of safe habitats in bays along Hawaii's coast. Scientists have developed a promising new tool that may help to limit repeated human disturbances and help reduce their negative impacts on the dolphins.

Oldest occurrence of arthropods preserved in amber: Fly, mite specimens are 100 million years older than previous amber inclusions Posted: 27 Aug 2012 03:00 PM PDT Scientists have discovered the oldest record of arthropods -- invertebrate animals that include insects, arachnids, and crustaceans -- preserved in amber. The specimens, one fly and two mites found in millimeter-scale droplets of amber from northeastern Italy, are about 100 million years older than any other amber arthropod ever collected.

Study questions technique to repair ruptured abdominal aortic aneurysms Posted: 27 Aug 2012 03:00 PM PDT A new study raises a cautionary note about the increasing use of a minimally invasive procedure to repair ruptured abdominal aortic aneurysms.

Link between protein and aggressive, recurring prostate cancer discovered Posted: 27 Aug 2012 02:59 PM PDT In a study to decipher clues about how prostate cancer cells grow and become more aggressive, urologists have found that reduction of a specific protein is correlated with the aggressiveness of prostate cancer, acting as a red flag to indicate an increased risk of cancer recurrence.

Scientist sees Arctic ice loss firsthand Posted: 27 Aug 2012 02:59 PM PDT A University of Delaware marine scientist can confirm firsthand some of the ice loss reported by the U.S. National Snow and Ice Data Center. In a short video he filmed this month, Andreas Muenchow, aboard an icebreaker ship, shows the ice-free sea off Petermann Fjord.

Frankenstein programmers test a cybersecurity monster Posted: 27 Aug 2012 02:59 PM PDT To catch a thief, you have to think like one. Computer scientists are trying to stay one step ahead of cyberattackers by creating their own monster. Their monster can cloak itself as it steals and reconfigures information in a computer program.

Speaking two languages also benefits low-income children Posted: 27 Aug 2012 01:20 PM PDT Living in poverty is often accompanied by conditions that can negatively influence cognitive development. Can being bilingual counteract these effects? Although previous research has shown that being bilingual enhances executive functioning in middle-class children, less is known about how it affects lower income populations.

Divorced parents in hostile relationships use technology to sabotage communication Posted: 27 Aug 2012 01:20 PM PDT Separated and divorced couples are increasingly using emails, texting and social media to communicate with their ex-partners about their children. However, when ex-spouses use that technology to withhold or manipulate information, the children are the ones who suffer most, according to a family studies expert. A new study suggests divorce counselors should teach separated parents effective ways to use communication technology in order to maintain healthy environments for their children.

Working moms spend less time daily on kids' diet, exercise Posted: 27 Aug 2012 01:20 PM PDT When it comes to cooking, grocery shopping and playing with children, American moms with full-time jobs spend roughly three-and-half fewer hours per day on these and other chores related to their children's diet and exercise compared to stay-at-home and unemployed mothers.

Midlife fitness staves off chronic disease at end of life Posted: 27 Aug 2012 01:20 PM PDT Being physically fit during your 30s, 40s, and 50s not only helps extend lifespan, but it also increases the chances of aging healthily, free from chronic illness, investigators have found.

Neandertal's right-handedness verified, hints at language capacity Posted: 27 Aug 2012 01:08 PM PDT There are precious few Neandertal skeletons available to science. One of the more complete was discovered in 1957 in France, roughly 900 yards away from the famous Lascaux Cave. That skeleton was dubbed "Regourdou." Then, about two decades ago, researchers examined Regourdou's arm bones and theorized that he had been right-handed.

Parents and readers: Beware of stereotypes in young adult literature, researcher says Posted: 27 Aug 2012 12:21 PM PDT A newly defined genre of literature, "teen sick-lit," features tear-jerking stories of ill adolescents developing romantic relationships. Although "teen sick-lit" tends to adhere to negative stereotypes of the ill and traditional gender roles, it also explores the taboo realm of sexuality, sickness and youth, says a researcher who named the genre in a recent study.

Oceanic mystery solved: Connection between 'monster larva' and unique species of shrimp Posted: 27 Aug 2012 12:20 PM PDT The origin of Cerataspis monstrosa has been a mystery as deep as the ocean waters it hails from. For nearly two centuries, researchers have tried to track down the larva that has shown up in the guts of other fish over time but found no adult counterpart. Until now.

Links between nutrients, genes and cancer spread documented Posted: 27 Aug 2012 12:20 PM PDT More than 40 plant-based compounds can turn on genes that slow the spread of cancer, according to a first-of-its-kind study. A professor of pharmaceutical sciences says he is encouraged by his findings because the spread of cancer is most often what makes the disease fatal. Moreover, he says, diet, nutrients and plant-based chemicals appear to be opening many avenues of attack.

Panda preferences influence trees used for scent marking Posted: 27 Aug 2012 12:20 PM PDT As solitary animals, giant pandas have developed a number of ways to communicate those times when they are ready to come into close contact. One means of this communication occurs through scent marking. A recent study indicates that pandas make clear and specific choices about what trees are used for scent marking.

Plants unpack winter coats when days get shorter Posted: 27 Aug 2012 12:20 PM PDT Mechanisms that protect plants from freezing are placed in storage during the summer and wisely unpacked when days get shorter. An expert in molecular genetics has demonstrated how the CBF cold response pathway is inactive during warmer months when days are long, and how it's triggered by waning sunlight to prepare plants for freezing temperatures.

Arctic sea ice shrinks to new low in satellite era Posted: 27 Aug 2012 12:20 PM PDT The extent of the sea ice covering the Arctic Ocean has shrunk. According to scientists the amount is the smallest size ever observed in the three decades since consistent satellite observations of the polar cap began.

Adolescent pot use leaves lasting mental deficits; Developing brain susceptible to lasting damage from exposure to marijuana Posted: 27 Aug 2012 12:20 PM PDT The persistent, dependent use of marijuana before age 18 has been shown to cause lasting harm to a person's intelligence, attention and memory, according to an international research team.

Long-held theory on human gestation refuted: Mother’s metabolism, not birth canal size, limits gestation Posted: 27 Aug 2012 12:20 PM PDT An anthropologist suggests that the length of human pregnancy is limited primarily by a mother's metabolism, not the size of the birth canal. The research challenges the long-held notion of an evolutionary trade-off between childbirth and a pelvis adapted for walking upright.

One third less life on planet Earth? Scientists offer better estimate of living biomass Posted: 27 Aug 2012 12:18 PM PDT Previous estimates about the total mass of all life on our planet have to be reduced by about one third, according to the results of a study by a German-U.S. science team.

Planning ahead: Consumers prefer fewer options when thinking about the future Posted: 27 Aug 2012 12:16 PM PDT Consumers generally prefer having more options when choosing among products but not when making choices involving the distant future, according to a new study.

Study questions recommendation to discontinue LABA therapy in asthma patients Posted: 27 Aug 2012 12:16 PM PDT An extensive literature review and analysis of five clinical trials suggests that discontinuing long-acting β2-agonist (LABA) therapy in adults and older children who have asthma that is controlled with a combination of inhaled corticosteroids and LABAs may be associated with increased asthma-related impairment, according to a new report.

Short- and mid-term cardiovascular effects of Japan's 2011 earthquake and tsunami: Incidence rises with the seismic peak Posted: 27 Aug 2012 11:21 AM PDT The Japanese earthquake and tsunami of March 11, 2011, which hit the north-east coast of Japan with a magnitude of 9.0 on the Richter scale, was one of the largest ocean-trench earthquakes ever recorded in Japan. The tsunami caused huge damage, including 15,861 dead and 3018 missing persons, and, as of June 6, 2012, 388,783 destroyed homes.

Darwin discovered to be right: Eastern Pacific barrier is virtually impassable by coral species Posted: 27 Aug 2012 11:21 AM PDT Coral from the eastern Pacific rarely crosses a deep-ocean barrier to reach the west coast of the Americas, according to new research. The finding has important implications for climate-change research, species-preservation efforts, and the economic stability of the eastern Pacific region, including the Galapagos, Costa Rica, Panama, and Ecuador.

Why some fats are worse than others Posted: 27 Aug 2012 11:21 AM PDT All dietary fats are not created equal. Some types of fats have been linked to ailments like heart disease and diabetes, while others, like those often found in plants and fish, have well documented health benefits. So why do our bodies respond so destructively to some fats but not others?

Diagnostic 'fatal flaws' in the ICU may account for as many annual deaths as breast cancer, patient safety team finds Posted: 27 Aug 2012 11:21 AM PDT Each year as many as 40,500 critically ill U.S. hospital patients die with an unknown medical condition that may have caused or contributed to their death, patient safety experts report in a recent study. The researchers say that although diagnostic errors in the intensive care unit (ICU) may claim as many lives each year as breast cancer, they remain an underappreciated cause of preventable patient harm.

Cooled coal emissions would clean air and lower health and climate-change costs Posted: 27 Aug 2012 11:21 AM PDT Refrigerating coal-plant emissions would reduce levels of dangerous chemicals that pour into the air -- including carbon dioxide by more than 90 percent -- at a cost of 25 percent efficiency, according to a simple math-driven formula.

Study explores injury risk in military Humvee crashes Posted: 27 Aug 2012 11:20 AM PDT A new report examines the risk factors for injuries to U.S. military personnel from crashes involving highly mobile multipurpose wheeled vehicles (HMMWVs), more commonly known as Humvees. According to the study, involvement in combat and serving as the vehicle's operator or gunner posed the greatest risk for injury. It is the first published analysis of factors associated with Humvee injury risk in a deployed setting.

Media violence consumption increases the relative risk of aggression, analysis shows Posted: 27 Aug 2012 10:07 AM PDT A comprehensive analysis of existing research clearly shows that media violence consumption increases the relative risk of aggression.

Arctic sea ice reaches lowest extent ever recorded Posted: 27 Aug 2012 10:07 AM PDT The blanket of sea ice floating on the Arctic Ocean melted to its lowest extent ever recorded since satellites began measuring it in 1979, according to new research.

Fossil skeleton of strange, ancient digging mammal clears up 30-year-old evolutionary debate Posted: 27 Aug 2012 10:07 AM PDT Shortly after dinosaurs like Tyrannosaurus and Triceratops went extinct, the Earth became filled with mammals only distantly related to those alive today. Until recently, one of these creatures, Ernanodon antelios, was only known from a single, highly distorted specimen that raised many questions about its habits and evolutionary relationships. Scientists have now described a second specimen of Ernanodon that sheds new light on this curious beast.

The effects of discrimination could last a lifetime Posted: 27 Aug 2012 10:06 AM PDT Increased levels of depression as a result of discrimination could contribute to low birth weight babies.

Probiotics supercharge plants' immunity to disease Posted: 27 Aug 2012 10:06 AM PDT Pathogens can slip through leaf pores and begin infecting a plant. However, new research shows that this invasion is halted when a beneficial bacterium is present in the soil where the plant is rooted.

Advanced tornado/hurricane shelter panels from recycled materials Posted: 27 Aug 2012 10:06 AM PDT Recycled materials may become armor against flying debris: Panels for a new high-tech shelter have passed the National Storm Shelter Association's tornado threat test.

Compounds activate key cancer enzyme to interfere with tumor formation Posted: 27 Aug 2012 09:25 AM PDT Scientists have known for decades that cancer cells use more glucose than healthy cells, feeding the growth of some types of tumors. Now, scientists have identified compounds that delay the formation of tumors in mice, by targeting a key enzyme that governs how cancer cells use glucose and its metabolites.

Controlling superconductors with light Posted: 27 Aug 2012 09:25 AM PDT By shining a light on a thin layer of molecules coating a material, scientists have been able to control the critical temperature at which the material can act as a superconductor. This method might be used to develop more powerful computing devices able to save data and run continuously without generating heat and wasting energy.

Fitting Kv potassium channels in the PIP2 puzzle Posted: 27 Aug 2012 09:24 AM PDT A recent study brings new insights to an area of ion channel regulation: whether voltage-gated potassium (Kv) channels can be regulated by physiological changes to PIP2.

The role of genes in political behavior Posted: 27 Aug 2012 09:24 AM PDT Politics and genetics have traditionally been considered non-overlapping fields, but over the past decade it has become clear that genes can influence political behavior, according to a review. This paradigm shift has led to novel insights into why people vary in their political preferences and could have important implications for public policy.

New model of muscular dystrophy provides insight into disease development Posted: 27 Aug 2012 09:24 AM PDT Researchers report the development of a mouse model of Fukuyama's muscular dystrophy that copies the pathology seen in the human form of the disease.

Studying how diseases spread in primates may help predict what diseases will emerge in humans Posted: 27 Aug 2012 09:23 AM PDT A new study has investigated how diseases are shared among species of primates with a view to predicting what diseases may emerge in humans in the future. The findings aim to help in the fight against these diseases by enabling scientists to develop treatments before outbreaks occur.

Limiting TV time: An effective strategy for preventing weight gain in children Posted: 27 Aug 2012 09:23 AM PDT A new study highlights how parents can help their children achieve a healthier lifestyle. Limit TV time.

Vitamin B3 may offer new tool in fight against staph infections, 'superbugs' Posted: 27 Aug 2012 09:22 AM PDT A new study suggests that nicotinamide, more commonly known as vitamin B3, may be able to combat some of the antibiotic-resistance staph infections and "superbugs" that are increasingly common around the world, have killed thousands and can pose a significant threat to public health.

Lack of sleep found to be a new risk factor for aggressive breast cancers Posted: 27 Aug 2012 08:33 AM PDT Lack of sleep is linked to more aggressive breast cancers, according to new findings by physician-scientists.

pH-sensitive liposomal cisplatin improves peritoneal carcinomatosis treatment without side-effects Posted: 27 Aug 2012 08:33 AM PDT Scientists have developed and characterized a circulating and pH-sensitive liposome containing cisplatin (SpHL-CDDP) aiming to promote the release of cisplatin near the tumor as well as decreasing toxicity. The development of analog drugs and new formulations are current strategies for increasing the effectiveness and safety of cisplatin as an anti-peritoneal carcinomatosis drug.

Scientists discover nerves control iridescence in squid's remarkable 'electric skin' Posted: 27 Aug 2012 08:33 AM PDT Nerves in squid skin control the animal's spectrum of shimmering hues -- from red to blue -- as well as their speed of change, biologists have found. The work marks the first time neural control of iridescence in an invertebrate species has been demonstrated.

Little evidence supports autism treatment options in adolescents Posted: 27 Aug 2012 08:32 AM PDT Researchers studying interventions for adolescents and young adults with autism have reported that there is insufficient evidence to support findings, good or bad, for the therapies currently used.

Super glue: Tests show that adhesive could improve safety of LASIK eye surgery Posted: 27 Aug 2012 08:32 AM PDT Researchers have developed a glue mixture that may reduce risks after laser vision correction surgery. Recent studies describe a new protocol involving brinogen, riboavin and ultraviolet light that could improve the safety of the corrective surgery.

To cap or not to cap: Scientists find new RNA phenomenon that challenges dogma Posted: 27 Aug 2012 07:51 AM PDT Some RNA molecules spend time in a restful state akin to hibernation rather than automatically carrying out their established job of delivering protein-building instructions in cells. This restful period appears to be a programmed step for RNA produced by certain types of genes. Protein production in cells is not as clear-cut as biology textbooks suggest, scientists say.

Unexpected findings at multi-detector CT scans: Less reason to worry Posted: 27 Aug 2012 07:51 AM PDT A new study reports that nearly seven percent of urologic multi-detector computed tomography (MDCT) scans for hematuria result in incidental findings that may be clinically important for the patient.

Smoking after stroke increases death risk three-fold, researchers find Posted: 27 Aug 2012 07:49 AM PDT Patients who resume smoking after a stroke increase their risk of death by three-fold, according to new research. The researchers also found that the earlier patients resume smoking, the greater their risk of death with one year.

Lifestyle changes could prevent 400 cardiac events and 200 deaths in Swedish PCI patients Posted: 27 Aug 2012 07:49 AM PDT Up to 400 cardiac events and 200 deaths in Swedish PCI patients could be avoided by following a heart healthy lifestyle, according to new research.

Global platelet reactivity identifies high risk ACS patients more effectively than responsiveness to clopidogrel Posted: 27 Aug 2012 07:49 AM PDT Global platelet reactivity is more effective than responsiveness to clopidogrel in identifying acute coronary syndrome (ACS) patients at high risk of ischemic events, according to new research.

Leg compressions may enhance stroke recovery Posted: 27 Aug 2012 06:43 AM PDT Successive, vigorous bouts of leg compressions following a stroke appear to trigger natural protective mechanisms that reduce damage, researchers report.

Breast milk promotes a different gut flora growth than infant formulas Posted: 27 Aug 2012 06:43 AM PDT The benefits of breast milk have long been appreciated, but now scientists have described a unique property that makes mother's milk better than infant formula in protecting infants from infections and illnesses. The finding explains how breast milk, but not infant formula, fosters colonies of microbiotic flora in a newborn's intestinal tract that aid nutrient absorption and immune system development.

Precise and persistent cell sabotage: Control of siRNA could aid regenerative medicine, cancer therapy Posted: 27 Aug 2012 06:43 AM PDT Small interfering RNA (siRNA), can be packaged then unleashed as a precise and persistent technology to guide cell behavior, researchers report. The technology holds promise for tissue engineering and cancer therapy.

How ocean currents affect global climate becoming better understood Posted: 27 Aug 2012 06:42 AM PDT Oceanographers have developed a "new paradigm" for describing how the world's oceans circulate -- and with it they may help reshape science's understanding of the processes by which wind, water, sunlight and other factors interact and influence the planet's climate.

You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610