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Science News Archive November 2013 - Page 2


Page 2 of 30

Ethical debate on face transplantation has evolved over time, reports Plastic and Reconstructive Surgery

The article discusses the evolution of ethical debates surrounding face transplantation, with early concerns fading as experience shows benefits in helping patients return to normal life. The procedure is expected to become more common, raising new questions about patient selection, costs, and allocation of donor tissues.

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateNov 27, 2013

Clinical trial shows tongue-controlled wheelchair outperforms popular wheelchair navigation system

A new clinical study shows that a tongue-controlled wheelchair can access computers and execute commands faster than sip-and-puff systems, with equal accuracy. The Tongue Drive System enables people with tetraplegia to maneuver their wheelchairs better than those using traditional assistive technologies.

SourceGeorgia Institute of Technology·JournalScience Translational Medicine·DateNov 27, 2013

Paleotempestology and 2011's Hurricane Irene

A new study examines the geological legacy of Hurricane Irene, shedding light on the long-term record of storm frequency and impact. The researchers found that the lack of definitive signatures from the hurricane in paleostorm records highlights concerns about current understanding of hurricane deposition and preservation.

SourceGeological Society of America·JournalGSA Today·DateNov 27, 2013

New aggressive HIV strain leads to faster AIDS development

A new aggressive HIV strain, A3/02, has been identified in West Africa and is associated with a shorter period of five years from infection to AIDS development. The study also highlights the increasing global spread of recombinant HIV forms, which can be more vigorous and aggressive than traditional strains.

SourceLund University·JournalThe Journal of Infectious Diseases·DateNov 27, 2013

Study of young parents highlights links among stress, poverty and ethnicity

A comprehensive study reveals that poor mothers and fathers from ethnic minority groups experience high levels of chronic stress, affecting their mental and physical health. The research also found that certain ethnic groups, such as recent immigrants, tend to have lower stress levels despite facing similar socioeconomic challenges.

SourceUniversity of California - Los Angeles·JournalPerspectives on Psychological Science·DateNov 27, 2013

Making a gem of a tiny crystal

A Northwestern University research team successfully built near-perfect single crystals out of nanoparticles and DNA, transforming disordered materials into orderly crystal structures. The technique, developed by Chad Mirkin and Monica Olvera de la Cruz, holds promise for novel technologies and new industries.

SourceNorthwestern University·JournalNature·DateNov 27, 2013

The deadly news about all osteoporotic fractures

New Australian research reveals that non-hip, non-vertebral fractures can significantly increase the risk of premature death, with some fractures potentially shortening life expectancy. The study analyzed data from a large-scale epidemiological study and found that all fractures are serious, with varying levels of severity.

SourceGarvan Institute of Medical Research·JournalThe Journal of Clinical Endocrinology & Metabolism·DateNov 27, 2013

Labor mobility generates growth

A study by Aarhus University researchers reveals that labor mobility is essential for small European countries to match China's export growth rates. Companies can hire employees with experience in and knowledge about new export destinations to gain a competitive edge.

Pitt unlocks trove of public health data to help fight deadly contagious diseases

The University of Pittsburgh's Project Tycho has digitized all weekly surveillance reports for reportable diseases in the US since 1888, revealing patterns and insights into vaccine effectiveness. The database contains data on eight vaccine-preventable diseases, showing a resurgence of some diseases despite vaccination efforts.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalNew England Journal of Medicine·DateNov 27, 2013

Economic development can only buy happiness up to a 'sweet spot' of $36,000 GDP per person, study finds

A new analysis suggests that economic development can only buy happiness up to a certain level of wealth. Once income reaches around $36,000 GDP per capita, life satisfaction levels peak before dipping slightly in the very rich countries. This finding contradicts previous studies that showed a flat relationship between GDP and happiness.

SourceUniversity of Warwick·JournalPLOS ONE·DateNov 27, 2013

Parasite lost

Scientists have identified a key metabolic enzyme used by Plasmodium species at each stage of infection, paving the way for more effective drugs and potentially eradicating malaria. The discovery could lead to radical cures and prevent infections, blocking transmission back to mosquitoes.

Better combustion through plasma

Researchers have discovered that introducing plasma to combustion reactions can sustain flames in conditions where they would normally be extinguished. This technology could significantly improve the efficiency of military jets, passenger planes, and unmanned drones by conserving fuel and extending flight times.

Implantable slimming aid

Researchers at ETH Zurich have developed an implantable genetic circuit that monitors and regulates blood fat levels, reducing hunger and promoting weight loss in obese mice. The innovative device exploits the natural human satiety mechanism, providing a potential alternative to surgical interventions.

SourceETH Zurich·JournalNature Communications·DateNov 26, 2013

2009 pandemic flu death toll much higher than official worldwide estimates

A recent study estimates the global death toll from the 2009 H1N1 outbreak to be up to 203,000 respiratory deaths, significantly higher than the World Health Organization's initial count of 18,449 laboratory-confirmed cases. The pandemic disproportionately affected younger people and certain regions, such as the Americas.

Genetics contribute to increased risk for end-stage renal disease for African Americans with CKD

A large study identifies genetic variants that contribute to the progression of chronic kidney disease in African Americans. APOL1 risk variants were found to be associated with higher rates of end-stage renal disease and progression of chronic kidney disease among black patients compared to white patients, regardless of diabetes status.

SourceGeorge Washington University·JournalNew England Journal of Medicine·DateNov 26, 2013