niedziela, 5 maja 2013

Fwd: Phys.org Newsletter Sunday, May 5



---------- Forwarded message ----------
From: Newsletter Phys.org <not-for-reply@physorg.com>
Date: Mon, May 6, 2013 at 2:22 AM
Subject: Phys.org Newsletter Sunday, May 5
To: Pascal Alter <pascal.alter@gmail.com>



Dear Pascal Alter,
Here is your customized Phys.org Newsletter for May 5, 2013:

Spotlight Stories Headlines

- As climate changes, boreal forests to shift north, relinquish more carbon than expected
- PEDOT:PSS: Improving thermoelectric materials that convert heat to electricity and vice-versa
- Researchers cure epilepsy in mice using brain cells
- Divide and define: Clues to understanding how stem cells produce different kinds of cells
- Portable nanodevice provides rapid, accurate diagnosis of tuberculosis, other bacterial infections
- Organic vapors affect clouds leading to previously unidentified climate cooling
- Genome sequencing provides unprecedented insight into causes of pneumococcal disease
- Discovery helps show how breast cancer spreads
- Study projects hurricanes to increase around Hawaiian Islands by end of century
- Protein complex may play role in preventing many forms of cancer, study shows
- Physicists present a non-destructive technique for measuring at the atomic scale
- New cost-effective genome assembly process developed
- Discovery may help prevent chemotherapy-induced anemia
- Florida electric utility completes smartgrid installations
- Dream of Mars exploration achievable, experts say

Space & Earth news

Chinese boat damaged Philippine reef
A Chinese fishing vessel that crashed into one of the Philippines' most famous reefs damaged almost 4,000 square metres of centuries-old coral, the marine park said on Saturday.
European Vega rocket launch delayed due to weather
The launch Saturday of Europe's lightweight rocket, Vega, from Kourou in French Guiana was put off until an unspecified date because of poor weather conditions at the space base, the European Space Agency said.
Australia's Barrier Reef set for heritage downgrade: UNESCO
Australia insisted it was committed to protecting the Great Barrier Reef on Saturday after the UN warned that the natural wonder's world heritage status could be in downgraded in 2014.
Dream of Mars exploration achievable, experts say
NASA and private sector experts now agree that a man or woman could be sent on a mission to Mars over the next 20 years, despite huge challenges.
Organic vapors affect clouds leading to previously unidentified climate cooling
University of Manchester scientists, writing in the journal Nature Geoscience, have shown that natural emissions and manmade pollutants can both have an unexpected cooling effect on the world's climate by making clouds brighter.
Study projects hurricanes to increase around Hawaiian Islands by end of century
News of a hurricane threat sends our hearts racing, glues us to the Internet for updates, and makes us rush to the store to stock up on staples. Hawaii, fortunately, has been largely free from these violent storms in the recent past, only two having made landfall in more than 30 years.
As climate changes, boreal forests to shift north, relinquish more carbon than expected
It's difficult to imagine how a degree or two of warming will affect a location. Will it rain less? What will happen to the area's vegetation? New Berkeley Lab research offers a way to envision a warmer future. It maps how Earth's myriad climates—and the ecosystems that depend on them—will move from one area to another as global temperatures rise.

Medicine & Health news

Saudi victims of SARS-like virus didn't travel
Five Saudis who died after contracting a new SARS-like virus last week had not travelled abroad, a health ministry doctor said on Saturday.
When less is more: New protocol limits use of SPECT MPI
A new stress test protocol that investigates reducing the use of perfusion imaging in low risk patients undergoing SPECT myocardial perfusion imaging for possible angina symptoms was found to be diagnostically safe, revealed a US retrospective analysis. The study, reported as an abstract¹ at the International Conference on Nuclear Cardiology and Cardiac CT (ICNC11) May 5 to May 8 in Berlin, Germany, predicted that using exercise ECG stress testing alone in patients with high exercise capacity would have had no adverse effects on their prognosis at five years.
Diagnosis, treatment of common outpatient disorder adds $238 million a year in ER costs
A relatively common urinary tract disorder that can usually be managed in an outpatient setting is adding an estimated $238 million a year to the cost of emergency room visits in the U.S., according to two new studies from Henry Ford Hospital in Detroit.
Hospital surgical volume should be considered when judging value of procedures
The volume of cases performed at an institution each year has a direct effect on the outcome of surgical procedures, and should always be considered when looking at the benefits of a technique, according to a team of researchers at Henry Ford Hospital in Detroit.
Toxic waste sites cause healthy years of life lost
Toxic waste sites with elevated levels of lead and chromium cause a high number of "healthy years of life lost" in individuals living near 373 sites located in India, Philippines and Indonesia, according to a study by a Mount Sinai researcher published online today in Environmental Health Perspectives.
Vitamin C may head off lung problems in babies born to pregnant smokers
Pregnant women are advised not to smoke during pregnancy because it can harm the baby's lungs and lead to wheezing and asthma, among other problems. If a woman absolutely can't kick the habit, taking vitamin C during pregnancy may improve her newborn's lung function and prevent wheezing in the first year of life, according to a study to be presented Saturday, May 4, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Don't be quick to toss your toothbrush after a sore throat
Word on the street has it you should replace your toothbrush after suffering from a cold, the flu or a bout of strep throat. That may not be necessary—at least when it comes to sore throats, according to a study to be presented Saturday, May 4, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
90 percent of pediatric specialists not following clinical guidelines when treating preschoolers with ADHD
A recent study by pediatricians from the Cohen Children's Medical Center of New York examined to what extent pediatric physicians adhere to American Academy of Pediatrics (AAP) clinical guidelines regarding pharmacotherapy in treating young patients with Attention Deficit Hyperactivity Disorder (ADHD). The results showed that more than 90 percent of medical specialists who diagnose and manage ADHD in preschoolers do not follow treatment guidelines recently published by the AAP.
Childhood obesity starts at home
As parents, physicians and policymakers look for ways to curb childhood obesity, they may need to look no further than a child's own backyard.
Don't txt n drive: Teens not getting msg
Teens can get hundreds of text messages a day, but one message they aren't getting is that they shouldn't text and drive. Nearly 43 percent of high school students of driving age who were surveyed in 2011 reported texting while driving at least once in the past 30 days, according to a study to be presented Saturday, May 4, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Camaraderie of sports teams may deter bullying, violence
As schools around the country look for ways to reduce violence and bullying, they may want to consider encouraging students to participate in team sports, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Risk of death has decreased for children initially treated with dialysis for ESKD
In a study that included more than 20,000 patients, there was a significant decrease in the United States in mortality rates over time among children and adolescents initiating end-stage kidney disease treatment with dialysis between 1990 and 2010, according to a study in the May 8 issue of JAMA. The study is being released early online to coincide with its presentation at the Pediatric Academic Societies annual meeting.
Study adds to evidence that cigarettes are gateway to marijuana
Teen smokers who rationalize their use of cigarettes by saying, "At least, I'm not doing drugs," may not always be able to use that line.
Cyberbullying rampant among high school students
Step into a class of 30 high school students and look around. Five of them have been victims of electronic bullying in the past year.
Childhood disability rate jumps 16 percent over past decade
More children today have a disability than a decade ago, and the greatest increase is among kids in higher-income families, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Cancer treatment could target inflammation in CVD
Peptide receptor radionuclide therapy (PRRT) with radiolabeled somatostatin analogs, an established treatment for cancer patients, could offer a novel therapeutic approach to decrease levels of inflammation in the atherosclerotic plaques of patients with cardiovascular disease (CVD), reported an abstract¹ study at the International Conference on Nuclear Cardiology and Cardiac CT, May 5 to 8 in Berlin, Germany.
Magnesium may be as important to kids' bone health as calcium
Parents are advised to make sure their children drink milk and eat other calcium-rich foods to build strong bones. Soon, they also may be urged to make sure their kids eat salmon, almonds and other foods high in magnesium—another nutrient that may play an important role in bone health, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Preterm infants may need 800 IU of vitamin D3 per day
Preterm infants may need to be given 800 international units (IU) of vitamin D a day to ensure they develop strong bones, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.
Effect of different oxygen saturation levels on death or disability in extremely preterm infants
In a randomized trial performed to help resolve the uncertainty about the optimal oxygen saturation therapy in extremely preterm infants, researchers found that targeting saturations of 85 percent to 89 percent compared with 91 percent to 95 percent had no significant effect on the rate of death or disability at 18 months, according to a study published by JAMA. The study is being released early online to coincide with its presentation at the Pediatric Academic Societies annual meeting.
In-hospital mortality no different at critical access hospitals
(HealthDay)—For eight inpatient surgical procedures, mortality is similar at critical access hospitals (CAHs) and non-CAHs, but costs are higher at CAHs, according to a study published online May 1 in JAMA Surgery.
Injecting insulin through clothes may contribute to infection
(HealthDay)—Insulin injections have been associated with non-tuberculous mycobacteria cutaneous infections and cutaneous mycobacteria may have a prolonged incubation period, according to a literature review and case study published in the April issue of Clinical Diabetes.
Self-medicating with alcohol linked to later dependence
(HealthDay)—Use of alcohol to self-medicate mood symptoms correlates with increased odds of subsequent alcohol dependence and persistence of dependence, according to a study published online May 1 in JAMA Psychiatry.
Some prostate cancer patients more likely to die after weekend ER visits
Patients with prostate cancer that has metastasized, or spread, to other parts of the body face a significantly higher risk of dying when visiting a hospital emergency department on the weekend instead of on a weekday, according to researchers at Henry Ford Hospital in Detroit.
Genome sequencing provides unprecedented insight into causes of pneumococcal disease
A new study led by researchers from Harvard School of Public Health (HSPH) and the Wellcome Trust Sanger Institute in the UK has, for the first time, used genome sequencing technology to track the changes in a bacterial population following the introduction of a vaccine. The study follows how the population of pneumococcal bacteria changed following the introduction of the 'Prevnar' conjugate polysaccharide vaccine, which substantially reduced rates of pneumococcal disease across the U.S. The work demonstrates that the technology could be used in the future to monitor the effectiveness of vaccination or antibiotic use against different species of bacterial pathogens, and for characterizing new and emerging threats.
Discovery may help prevent chemotherapy-induced anemia
Cancer chemotherapy can cause peripheral neuropathy—nerve damage often resulting in pain and muscle weakness in the arms and legs. Now, researchers at Albert Einstein College of Medicine of Yeshiva University have discovered that chemo also induces an insidious type of nerve damage inside bone marrow that can cause delays in recovery after bone marrow transplantation. The findings, made in mice and published online today in Nature Medicine, suggest that combining chemotherapy with nerve-protecting agents may prevent long-term bone marrow injury that causes anemia and may improve the success of bone marrow transplants.
Protein complex may play role in preventing many forms of cancer, study shows
Researchers at the Stanford University School of Medicine have identified a group of proteins that are mutated in about one-fifth of all human cancers. The finding suggests that the proteins, which are members of a protein complex that affects how DNA is packaged in cells, work to suppress the development of tumors in many types of tissues.
Researchers cure epilepsy in mice using brain cells
UCSF scientists controlled seizures in epileptic mice with a one-time transplantation of medial ganglionic eminence (MGE) cells, which inhibit signaling in overactive nerve circuits, into the hippocampus, a brain region associated with seizures, as well as with learning and memory. Other researchers had previously used different cell types in rodent cell transplantation experiments and failed to stop seizures.

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