ScienceDaily: Latest Science News

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• Global glaciation snowballed into giant change in carbon cycle
• Fighting fungal infections with bacteria
• Gene therapy sets stage for new treatments for inherited blindness
• Carbon monoxide exposure can be reduced during routine anesthesia in kids
• Scientists look beyond diamond for quantum computing
• Sleeping well at 100 years of age: Study searches for the secrets to healthy longevity
• Fluorescent compounds make tumors glow
• Tumors promote their own metastasis
• U.S. could eliminate CO₂ emissions from coal in 20 years, experts say
• Protein loss in the urine harmful for people with high blood pressure, study finds
• Ability to tolerate enemies influences coevolution
• Living in a high-crime neighborhood may worsen children's asthma
• Largest atlas of nuclear galactic rings unveiled
• Researchers recommend pregnant women take 4,000 IU vitamin D a day
• Kiss of death: Research targets lethal Chagas' disease spread by insect that bites lips
• Mechanomyography to be accurate in detecting nerves during minimally invasive spine surgery, study suggests
• Immune system: Nanotechnology helps illuminate how T-cells are activated
• First symptoms of psychosis evident in 12-year-olds, study suggests
• Lung cancer risk particularly high for heart and liver transplant recipients
• US Latinos have high rates of developing vision loss and certain eye conditions
• Brief treatment can ease depression in mothers
• Difficulty filling out forms could lead to gaps in insurance coverage for children
• Social networking sites may provide clues to teens' sexual intentions
• Giving DHA supplements to breastfeeding mothers
• Access to primary care may reduce surgeries among children
• Comprehensive asthma care keeps kids out of the hospital, study suggests

Global glaciation snowballed into giant change in carbon cycle Posted: 02 May 2010 02:00 PM PDT New data from geologists suggest that an episode called "snowball Earth," which may have covered the continents and oceans in a thick sheet of ice, produced a dramatic change in the carbon cycle. This change in the carbon cycle, in turn, may have triggered future ice ages.

Fighting fungal infections with bacteria Posted: 02 May 2010 02:00 PM PDT A bacterial pathogen can communicate with yeast to block the development of drug-resistant yeast infections, say scientists. The research could be a step towards new strategies to prevent hospital-acquired infections associated with medical implants.

Gene therapy sets stage for new treatments for inherited blindness Posted: 02 May 2010 02:00 PM PDT Veterinary vision scientists have safely and successfully used a viral vector in targeting a class of photoreceptors of the retina called rods, a critical first step in developing gene therapies for inherited blindness caused by rod degeneration.

Carbon monoxide exposure can be reduced during routine anesthesia in kids Posted: 02 May 2010 02:00 PM PDT Doctors have found that carbon monoxide levels in the blood of young children increase during routine general anesthesia. Anesthesiologists have found for the first time that, under certain circumstances, infants and children may be exposed to carbon monoxide during routine anesthesia resulting in a rise in the carbon monoxide levels in the child's blood.

Scientists look beyond diamond for quantum computing Posted: 02 May 2010 02:00 PM PDT A team of scientists that helped pioneer research into the quantum properties of a small defect found in diamonds has now used cutting-edge computational techniques to produce a road map for studying defects in alternative materials.

Sleeping well at 100 years of age: Study searches for the secrets to healthy longevity Posted: 02 May 2010 02:00 PM PDT Sleep issues were examined in a sample of 15,638 adults aged 65 and older, including 3,927 between 90 and 99 years of age, and 2,794 who were 100 years of age and older. The oldest adults aged 100 and above were 70 percent more likely to report good sleep quality than younger participants aged 65 to 79, after controlling for potential confounders. Men were 23 percent more likely than women to report sleeping well.

Fluorescent compounds make tumors glow Posted: 02 May 2010 08:00 AM PDT A series of novel imaging agents could light up tumors as they begin to form -- before they turn deadly -- and signal their transition to aggressive cancers. The compounds could have broad applications for detecting tumors earlier, monitoring a tumor's transition from pre-malignancy to more aggressive growth, and defining tumor margins during surgical removal.

Tumors promote their own metastasis Posted: 02 May 2010 08:00 AM PDT Current research suggests that tumor-secreted exosomes inhibit the immune response, enhancing tumor metastasis.

U.S. could eliminate CO<sub>2</sub> emissions from coal in 20 years, experts say Posted: 02 May 2010 08:00 AM PDT The United States could completely stop emissions of carbon dioxide from coal-fired electric power plants -- a crucial step for controlling global warming -- within 20 years by using technology that already exists or could be commercially available within a decade. That's the conclusion of an article by a group of scientists, engineers, and architects.

Protein loss in the urine harmful for people with high blood pressure, study finds Posted: 02 May 2010 08:00 AM PDT Healthy people with high blood pressure who excrete a slight excess of protein in the urine raise their risk of developing kidney and heart complications. According to a new study, more attention should focus on the potential health effects of urinary protein excretion in individuals with high blood pressure (hypertension).

Ability to tolerate enemies influences coevolution Posted: 02 May 2010 08:00 AM PDT Stay and fight, or flee? These are usually the alternatives facing a victim when it is attacked by an enemy. Two researchers have now collected and discussed various examples from the animal world where the victim makes use of another possibility.

Living in a high-crime neighborhood may worsen children's asthma Posted: 02 May 2010 08:00 AM PDT After adjusting for the child's age, gender, family history of asthma and socioeconomic status, children were nearly twice as likely to have moderate/severe asthma if their caregivers reported high levels of stress or if the incidence of violent crime was high in their neighborhood.

Largest atlas of nuclear galactic rings unveiled Posted: 02 May 2010 02:00 AM PDT An international team of astrophysicists has just unveiled the most complete atlas of nuclear rings, enormous star-forming ring-shaped regions that circle certain galactic nuclei. The catalogue includes 113 such rings in 107 galaxies.

Researchers recommend pregnant women take 4,000 IU vitamin D a day Posted: 02 May 2010 02:00 AM PDT Taking vitamin D supplements during pregnancy is not only safe for mother and baby, but also can prevent preterm labor/births and infections, new research suggests.

Kiss of death: Research targets lethal Chagas' disease spread by insect that bites lips Posted: 02 May 2010 02:00 AM PDT It makes your skin crawl -- a bug that crawls onto your lips while you sleep, drawn by the exhaled carbon dioxide, numbs your skin, bites, then gorges on your blood. And if that's not insult enough, it promptly defecates on the wound -- and passes on the potentially deadly Chagas' disease.

Mechanomyography to be accurate in detecting nerves during minimally invasive spine surgery, study suggests Posted: 02 May 2010 02:00 AM PDT An electronic device is an accurate technique for locating and avoiding nerves during spinal procedures, a new study suggests. The issue becomes important for patients as the demand for minimally invasive surgical techniques continues to grow, so does the need for effective methods for monitoring the location of nerves during surgery to avoid damage to them.

Immune system: Nanotechnology helps illuminate how T-cells are activated Posted: 02 May 2010 02:00 AM PDT Scientists have taken a major step forward in understanding how T cells are activated in the course of an immune response by combining nanotechnology and cell biology. T cells are the all important trigger that starts the human body's response to infection.

First symptoms of psychosis evident in 12-year-olds, study suggests Posted: 02 May 2010 02:00 AM PDT Children normally experience flights of fancy, including imaginary friends and conversations with stuffed animals, but some of them are also having hallucinations and delusions which might be the early signs of psychosis.

Lung cancer risk particularly high for heart and liver transplant recipients Posted: 30 Apr 2010 09:00 PM PDT Heart and liver transplant recipients are at particularly high risk of developing lung cancer after receiving the donated organ.

US Latinos have high rates of developing vision loss and certain eye conditions Posted: 30 Apr 2010 09:00 PM PDT Latinos have higher rates of developing visual impairment, blindness, diabetic eye disease, and cataracts than non-Hispanic whites, researchers found. These are the first estimates of visual impairment and eye disease development in Latinos, the largest and fastest growing minority population in the United States.

Brief treatment can ease depression in mothers Posted: 30 Apr 2010 09:00 PM PDT New research suggests that depression is common in disadvantaged mothers, well beyond the postpartum period. In addition, if depressed moms are treated briefly, their symptoms improve as do their perceptions of their child's behavior or the behavior problems themselves.

Difficulty filling out forms could lead to gaps in insurance coverage for children Posted: 30 Apr 2010 09:00 PM PDT A study finds that 92 percent of Medicaid applications were written at or above the fifth-grade reading level, which could lead to gaps in insurance coverage for many children whose families have lower health literacy.

Social networking sites may provide clues to teens' sexual intentions Posted: 30 Apr 2010 09:00 PM PDT New research suggests that display of sexual references on teens' Facebook profiles is associated with their intention to initiate intercourse.

Giving DHA supplements to breastfeeding mothers Posted: 30 Apr 2010 09:00 PM PDT Early supplementation with DHA to lactating mothers with low dietary DHA is successful in increasing DHA status in very preterm infants.

Access to primary care may reduce surgeries among children Posted: 30 Apr 2010 09:00 PM PDT The availability of surgeons may increase the likelihood that children will receive optional ear and throat surgeries, while the availability of primary care providers, such as pediatricians and family physicians, may decrease the likelihood of children undergoing these procedures.

Comprehensive asthma care keeps kids out of the hospital, study suggests Posted: 30 Apr 2010 09:00 PM PDT A comprehensive, patient-centered approach to asthma care that includes education, referrals to specialists and home visits not only improves patients' health but also has tremendous potential to decrease health care costs.

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