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Science News Archive March 2010 - Page 6


Page 6 of 27

Changing incentive system for China's health-care providers could mean large improvements in care quality and coverage, and reduce costs

Experiments in China have shown that changing the incentive system for healthcare providers can lead to improved basic primary health care and reduced costs. Primary-care providers are incentivized to cover more citizens with vaccinations and health education, improving access to cost-effective care.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 25, 2010

NYU researchers create 'handshaking' particles

Physicists at NYU have created colloidal dispersions with programmable particle interactions, offering opportunities for engineering smart composite particles and new functional materials. The 'lock and key' mechanism allows specific particles to join together based on shape, marking a next step in understanding self-assembly processes.

SourceNew York University·JournalNature·DateMar 24, 2010

Great apes know they could be wrong

Non-human animals, including gorillas and chimpanzees, exhibit knowledge about what they have seen in experiments. The apes reduce checking before choosing when provided with auditory information about the food's location, suggesting metacognitive abilities.

SourceSpringer·JournalAnimal Cognition·DateMar 24, 2010

Hugging the heart electronically

Researchers have developed a flexible silicon electronics device that can map waves of electrical activity in the heart with high density and speed. The device uses 288 contact points and has the potential to localize and treat abnormal heart rhythms.

SourceNorthwestern University·JournalScience Translational Medicine·DateMar 24, 2010

Octreotide acetate does not prevent treatment-induced diarrhea in anorectal cancer

A randomized trial found that octreotide acetate did not reduce the incidence or severity of diarrhea in patients with anorectal cancer. The study included 215 patients who received either a placebo or long-acting octreotide before and during radiation therapy, but no significant differences were observed between groups.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateMar 24, 2010

Even soil feels the heat

Researchers analyzed 439 soil respiration studies and found that the total amount of carbon dioxide flowing from soils has increased by about 1-2 percent per year since 1989. The study suggests that higher temperatures are unlocking old carbon, but more boreal data is needed to reach statistical relevance.

Teenagers programmed to take risks

A recent study published in Cognitive Development found that teenagers take the most risks compared to other age groups, particularly between 14-35 years old. The researchers discovered that teenagers enjoy the thrill of taking risks more than other age groups, especially when they have a 'lucky escape'.

SourceUniversity College London·JournalCognitive Development·DateMar 24, 2010

Guinea pigs not 'dumbed down' by domestication

Researchers found that domestic guinea pigs excelled in a water maze test due to their improved ability to decipher guidance symbols, while wild cavies were stronger swimmers. The study suggests an adaptation in domesticated animals for efficient problem-solving in human-made environments.

SourceBMC (BioMed Central)·JournalFrontiers in Zoology·DateMar 24, 2010

Searching for genes behind a trait

A team at the University of Southern California used a genome-wide association method to locate genes behind important plant traits such as flowering time and disease resistance in Arabidopsis thaliana. The study identified dozens of genes linked to these traits, with potential applications in agriculture and biofuels.

Benefits of osteoporosis treatments outweigh possible risk of rare femoral fractures

A new study led by UCSF researchers found that unusual femur fractures are extremely rare in patients with osteoporosis, even those taking bisphosphonates for extended periods. The study's findings provide context to reports of these fractures and highlight the importance of weighing treatment benefits against potential risks.

SourceUniversity of California - San Francisco·JournalNew England Journal of Medicine·DateMar 24, 2010