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Science News Archive December 2014 - Page 18


Page 18 of 28

No increase in patient deaths or readmissions following restrictions to residents' hours

A recent study published in JAMA found that restricting residents' work hours to 16-24 hours per shift had no impact on patient deaths or readmissions. The researchers analyzed nearly 6.4 million Medicare patient hospital admissions between 2009 and 2012, but found no relative changes in mortality rates during this time period.

Abandoned wells can be 'super-emitters' of greenhouse gas

Researchers at Princeton University found that many abandoned oil and gas wells in Pennsylvania leak substantial quantities of methane. The study suggests that these 'super-emitting' wells could be a significant source of greenhouse gas emissions, potentially accounting for up to 10% of methane from human activities in the state.

SourcePrinceton University, Engineering School·JournalProceedings of the National Academy of Sciences·DateDec 9, 2014

Technology-dependent emissions of gas extraction in the US

Researchers from the Karlsruhe Institute of Technology measured high concentrations of organic pollutants emitted during fracking processes in the US, exceeding urban air quality standards by a factor of one thousand. The study found that certain technologies, such as open fracking facilities, release significantly more benzene and oth...

SourceKarlsruher Institut für Technologie (KIT)·JournalAtmospheric Chemistry and Physics·DateDec 9, 2014

Study shows cognitive training can improve brain performance of students in poverty

A study published in Frontiers in Human Neuroscience found that cognitive training can improve the brain performance of middle school students from poverty-stricken backgrounds. The program, called SMART, resulted in a 25% increase in gist reasoning and an 18% improvement in fact retention among students who received the training.

SourceCenter for BrainHealth·JournalFrontiers in Human Neuroscience·DateDec 9, 2014

Molecular decoys help overcome drug resistance

Researchers at Brown University have developed a new strategy to combat antibiotic-resistant bacteria by using molecular decoys. By administering fragments of antimicrobial agents alongside the full compounds, the researchers were able to increase their effectiveness against efflux pumps that stand guard along bacterial cell membranes.

SourceBrown University·JournalACS Infectious Diseases·DateDec 9, 2014

Online students give instructors higher marks if they think instructors are men

A recent study by NC State University found that online students tend to evaluate male instructors more favorably than female instructors, regardless of the instructor's actual gender. The researchers discovered a significant bias against women, with students who believed they were taught by men receiving higher ratings on various traits.

SourceNorth Carolina State University·JournalInnovative Higher Education·DateDec 9, 2014

James Ingle of Mayo Clinic Recognized for Breast Cancer Research

James Ingle, a renowned breast cancer expert at Mayo Clinic, has been awarded the 2014 William L. McGuire Memorial Lecture Award for his groundbreaking research on pharmacogenomics in breast cancer treatment. His work aims to develop personalized approaches to prevent breast cancer in high-risk women by identifying genetic biomarkers t...

Laughing gas studied as depression treatment

A pilot study found that two-thirds of patients with treatment-resistant clinical depression experienced an improvement in symptoms after receiving nitrous oxide, compared to one-third who improved with a placebo. The researchers are encouraged by the results and plan to replicate the study and test various concentrations of laughing gas.

SourceWashU Medicine·JournalBiological Psychiatry·DateDec 9, 2014

Many memories, many rooms

A study published in the Proceedings of the National Academy of Sciences found that rats can create a unique map for every environment, allowing them to remember distinct locations without mixing up similar events. This discovery sheds light on the brain's storage capacity and memory organization.

SourceNorwegian University of Science and Technology·JournalProceedings of the National Academy of Sciences·DateDec 8, 2014

New model helps boost fishery profits and sustainability

A new model developed by economists at Duke University and the University of Connecticut helps fishermen boost profits by identifying the most efficient fishing practices and behaviors. The model found that in some cases, congestion can actually increase potential late-season profits and reduce the risk of fishery depletion.

SourceDuke University·JournalAmerican Economic Review·DateDec 8, 2014