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Science News Archive September 2012 - Page 25


Page 25 of 27

Southeast Asian ovalocytosis protects against P. vivax malaria

A multinational group of authors has found a strong association between Southeast Asian ovalocytosis and protection against malaria caused by Plasmodium vivax. The study suggests that P. vivax malaria may have contributed to shaping the unique host genetic adaptations in Asian and Oceanic populations.

SourcePLOS·JournalPLOS Medicine·DateSep 4, 2012

Review finds some evidence for 'chemo brain' in breast cancer survivors, Moffitt Cancer Center says

A recent meta-analysis by researchers at Moffitt Cancer Center found that breast cancer patients who received chemotherapy had slight cognitive impairments in verbal and visuospatial abilities. The study suggests that these deficits can be managed through awareness and compensatory strategies, improving daily life for affected individu...

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalJournal of Clinical Oncology·DateSep 4, 2012

Every atom counts in graphene formation

Rice University researchers have developed a nanoreactor theory to predict graphene formation, which can advance the material's quality and electronic properties. The team found that the shape of the graphene edge pattern is dictated by the most efficient use of energy, with skewed edges growing fastest.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateSep 4, 2012

PharmaNet system dramatically reduced inappropriate prescriptions of potentially addictive drugs

A centralized prescription network, PharmaNet, implemented in British Columbia pharmacies reduced inappropriate prescriptions for opioid analgesics and benzodiazepines. The study found a 33-49% reduction in potentially inappropriate prescriptions for opioids and benzodiazepines in patients on social assistance and seniors.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateSep 4, 2012

For the rooster, size matters

Researchers at Linköping University have discovered two 'pleiotropic' genes influencing comb size, bone growth and egg production in domestic chickens. The study reveals the genetic basis for the correlation between comb size and increased egg-laying.

SourceLinköping University·JournalPLOS Genetics·DateSep 4, 2012

Waste not, power up

Researchers have developed a method to make flexible lithium-ion battery components from discarded silicon, which can prolong their usefulness. The new material is made by creating nanowires from high-value but hard-to-recycle silicon and then encasing them in an electrically conducting copper and ion-conducting polymer electrolyte.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateSep 4, 2012

Healing cuts for Medicare

A new study reports that Medicare payment reforms mandated in the Affordable Care Act have great potential to lower costs without harming patients. The researchers found that previous payment reforms caused a steep downtick in postacute care costs immediately after implementation, but expenses quickly resumed their upward trend.

SourceHarvard Medical School·JournalHealth Affairs·DateSep 4, 2012

Preeclampsia poses a significant long-term health risk according to new research from Ben-Gurion U.

Preeclampsia is a significant risk factor for long-term health issues, including chronic hypertension and hospitalizations. The study, published in the Journal of Maternal-Fetal and Neonatal Medicine, found patients with preeclampsia had higher rates of chronic hypertension diagnosed after pregnancy.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalThe Journal of Maternal-Fetal & Neonatal Medicine·DateSep 4, 2012

How language change sneaks in

A recent study by Hendrik De Smet investigates language change and finds that actualization processes involve small adjustments exploiting similarities between contexts. This process can lead to differences in language use over time, influencing grammatical structures.

SourceLinguistic Society of America·JournalLanguage·DateSep 4, 2012

Spinach power gets a big boost

Researchers at Vanderbilt University have developed a way to combine the photosynthetic protein from spinach with silicon to produce substantially more electrical current. The new design produces current levels nearly 1,000 times higher than previous biohybrid solar cells and has the potential to power small devices.

SourceVanderbilt University·JournalAdvanced Materials·DateSep 4, 2012

U of M faculty find antimicrobials altering intestinal bacteria composition in swine

A study by University of Minnesota researchers found that antimicrobial growth promoters in swine alter intestinal bacteria composition, leading to accelerated growth and development. The findings suggest a possible alternative to antibiotics in animal production without compromising animal health.

SourceUniversity of Minnesota Academic Health Center·JournalProceedings of the National Academy of Sciences·DateSep 4, 2012

Magazine articles jeopardize and empower young women’s sexuality

A study published in Psychology of Women Quarterly found that women who read sex-related magazine articles viewed premarital sex as less risky and were more supportive of female sexual assertiveness. The researchers also discovered a racial disparity in attitudes, with white women viewing premarital sex as less risky than women of color.

SourceSAGE·JournalPsychology of Women Quarterly·DateSep 4, 2012

Experts propose 'cyber war' on cancer

Researchers suggest a 'cyber war' on cancer by breaking the code of cancer cells' social behavior, similar to bacterial colonies. This approach could help prevent dormancy and reawaken cells for targeted chemotherapy attacks.

SourceRice University·JournalTrends in Microbiology·DateSep 4, 2012

Magazines jeopardize and empower young women's sexuality

A new study reveals that reading sex-related magazine articles from popular women's magazines like Cosmopolitan can have empowering effects on young women's sexuality. The research found that women who read these articles were more likely to view premarital sex as a positive and less risky behavior, while also promoting female sexual a...

SourceSAGE·JournalPsychology of Women Quarterly·DateSep 4, 2012

New genetic clues to why most bone marrow transplant patients develop graft-versus-host disease

Researchers discovered two specific single-nucleotide polymorphisms in the major histocompatibility complex (MHC) linked to acute graft-versus-host disease (GVHD) and disease-free survival. A new screening protocol is being developed to better match patients and donors, with the goal of reducing GVHD incidence.

SourceFred Hutchinson Cancer Center·JournalScience Translational Medicine·DateSep 4, 2012