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Science News for September 11, 2011


Scientists utilize breath and sweat to detect trapped humans

Researchers created a simulator of a collapsed building to test portable sensors that use human metabolites, detecting carbon dioxide, ammonia, and volatile organic compounds. The study's findings hold promise for improving detection systems in disaster scenarios.

SourceIOP Publishing·JournalJournal of Breath Research·DateSep 11, 2011

Study reveals critical similarity between two types of do-it-all stem cells

Researchers at University of Wisconsin-Madison report 99% protein similarity between two types of do-it-all stem cells, shedding light on their potential applications in cell replacement therapies. The study measured over 6,000 proteins using mass spectrometry and provides insights into their biological role.

SourceUniversity of Wisconsin-Madison·JournalNature Methods·DateSep 11, 2011
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International study identifies new gene targets for hypertension treatment

An international study identifies 28 new gene regions associated with blood pressure, including a previously unknown physiologic pathway involved in blood pressure control. The findings suggest potential targets for new hypertension drugs and may lead to improved treatment options for cardiovascular complications.

SourceMassachusetts General Hospital·JournalNature·DateSep 11, 2011

USC scientists generate first detailed map of human neuroreceptor

USC scientists have created the world's first high-resolution images of the α7 receptor, a molecule responsible for transmitting signals between neurons. This breakthrough promises to revolutionize drug design by allowing pharmaceutical companies to target specific receptors instead of using trial-and-error approaches.

SourceUniversity of Southern California·JournalNature Neuroscience·DateSep 11, 2011

Genome-wide hunts reveal new regulators of blood pressure

Researchers identified 29 DNA sequence variations linked to blood pressure, suggesting a complex genetic regulatory mechanism. The study pooled data from over 200,000 people worldwide and found common genetic variants in individuals of Asian and African ancestry.

SourceJohns Hopkins Medicine·JournalNature·DateSep 11, 2011

New coral dating method hints at possible future sea-level changes

A new coral dating method developed by WHOI researcher William G. Thompson provides accurate age estimates for fossil coral reef skeletons in the Bahamas, revealing that sea levels were less stable than previously believed. The study suggests that a similar scenario to the Last Interglacial could occur if current warming trends continue.

SourceWoods Hole Oceanographic Institution·JournalNature Geoscience·DateSep 11, 2011
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A guiding light for new directions in energy production

Optofluidics, the study of microfluidics combined with optics, is poised to revolutionize energy production. By directing light and concentrating its use, optofluidics can increase efficiency in existing systems like biofuel reactors and solar cells, as well as innovate new forms of energy production.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Photonics·DateSep 11, 2011

Innovating for every woman, every child

The report emphasizes the importance of self-sustaining supply-demand systems in improving health and wellbeing for marginalized women and children globally. The authors highlight democratising technologies like mobile phones as a key opportunity for local demand to be understood, appreciated, and locally solved.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 11, 2011

Dangers of exposure to 'white' light

A new international study reveals that 'white' light bulbs emit shorter wavelengths that suppress melatonin production, causing behavior disruptions and health problems. The researchers recommend limiting the use of 'white' light, adjusting lampposts to reduce light pollution, and using energy-efficient lighting.

SourceUniversity of Haifa·JournalJournal of Environmental Management·DateSep 11, 2011

Squeezed laser will bring gravitational waves to the light of day

Researchers from Max Planck Society and Leibniz University Hannover have successfully applied the 'squeezed light' method to improve the sensitivity of the GEO600 gravitational wave detector. This new technology reduces shot noise by a factor of two, allowing for more accurate measurements of tiny changes in space-time.

SourceMax-Planck-Gesellschaft·JournalNature Physics·DateSep 11, 2011
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Discovery of blood pressure genes could help prevent cardiovascular disease

Researchers identified 16 new gene regions associated with blood pressure and confirmed 12 previously discovered ones, providing insights into the genetic mechanisms of hypertension. The study's findings could lead to new therapeutic drug development and improved treatment options for individuals with high blood pressure.

SourceQueen Mary University of London·JournalNature·DateSep 11, 2011