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Science News for March 27, 2008


Keeping sanitation in the international spotlight

A global sanitation fund has been launched, with 32 African countries pledging to spend at least 0.5% of their GDP on sanitation and hygiene. Improved water and sanitation have a tremendous positive impact on health, but sanitation has languished at the bottom of the international agenda for far too long.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 27, 2008

Are you what you eat? New study of body weight change says maybe not

A new study published in PLOS Computational Biology suggests that identical twins with the same lifestyle can have different body weights due to infinite number of possible body weight solutions. This challenges traditional understanding of body weight change, suggesting it may be influenced by multiple factors beyond diet and exercise.

SourcePLOS·JournalPLOS Computational Biology·DateMar 27, 2008

Sniffing out danger

Researchers at Northwestern University discovered that a single negative experience linked to an odor rapidly teaches us to identify and discriminate it from similar ones. The study found specific changes in brain regions enhancing perceptual sensitivity for smells with high biological relevance.

SourceNorthwestern University·JournalScience·DateMar 27, 2008

Under the sea

Researchers have mapped the 8-mile thick molten rock layers beneath the Atlantic Ocean's edges, providing insight into the break-up of continents and massive greenhouse gas releases. The study also developed a new method to see through lava flows, enabling oil exploration in previously restricted areas.

SourceUniversity of Cambridge·JournalNature·DateMar 27, 2008

Silicon chips for optical quantum technologies

A team of physicists and engineers at the University of Bristol demonstrated control of single particles of light on a silicon chip, a crucial step towards a super-powerful quantum computer. The controlled-NOT gate, the building block of a quantum computer, was achieved with high-fidelity operation.

SourceUniversity of Bristol·JournalScience·DateMar 27, 2008

A new method to identify mutated genes in human diseases

Researchers have developed a new method to identify mutated genes in human diseases by analyzing gene expression data. The study identified candidate genes for 81 diseases, including epilepsy and muscular dystrophy, paving the way for a better understanding of disease mechanisms.

SourcePLOS·JournalPLOS Computational Biology·DateMar 27, 2008

Why matter matters in the universe

Researchers investigated B-meson decays to understand the origin of matter's dominance over antimatter in the universe. The study reveals a significant discrepancy between theoretical models and observations, suggesting the presence of a new principle of physics.

SourceUniversity of Melbourne·JournalNature·DateMar 27, 2008

Relaxation training may improve control of hard-to-treat systolic hypertension

A study found that relaxation response training significantly improved treatment of isolated systolic hypertension in elderly patients. The approach reduced the need for medication and cut healthcare costs by billions of dollars. By eliciting the relaxation response, participants experienced a significant drop in systolic blood pressure.

SourceMassachusetts General Hospital·JournalThe Journal of Alternative and Complementary Medicine·DateMar 27, 2008

Saving cancer patients' skin

A new breed of targeted cancer drugs is attacking specific proteins in cancer cells, but also causes devastating dermatologic side effects. The Cancer Skin Care Program at Northwestern University provides specially formulated lotions and drugs to help patients preserve their dignity and quality of life.

Armed beetles find a mate, whatever their size

Researchers discovered that Librodor japonicus beetles employ distinct strategies to attract mates based on their body size. Smaller males use 'sneaky matings' behind larger males, while medium-sized beetles search for unoccupied feeding sites. This unique approach ensures all individuals have a chance at finding a mate without conflict.

SourceWiley·JournalEcological Entomology·DateMar 27, 2008

Social anxiety disorder

Social anxiety disorder is a chronic and pernicious condition that can lead to depression and substance abuse in adulthood. Research highlights the importance of understanding its neurobiological underpinnings, including increased amygdala activity and heritable temperamental traits.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 27, 2008