Body

Berkeley researchers find new route to nano self-assembly

BERKELEY, CA – If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important advance towards this goal has been achieved by researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) who have found a simple and yet powerfully robust way to induce nanoparticles to assemble themselves into complex arrays.

Halloween sex offender policies questioned

Los Angeles, London, New Delhi, Singapore and Washington DC (October 22, 2009) The rates of non-familial sex crimes against children under the age of 12 are no higher during the Halloween season than at any other times of the year, according to a study published in the September issue of Sexual Abuse: A Journal of Research and Treatment the official journal of the Association for the Treatment of Sexual Abusers (published by SAGE). The findings raise questions about the wisdom of law enforcement practices aimed at dealing with a problem that does not appear to exist.

UBC researchers find key microbial indicator of ocean health

A team of researchers at the University of British Columbia, along with colleagues at the US Dept. of Energy Joint Genome Institute, has mapped the genome of a microbe that is silently helping to shape the ecology of oxygen-minimum areas in the ocean known as dead zones.

Model microbial community for studying expanding dead zones characterized

Among the many changes in the ocean is the expansion of oxygen-deficient or oxygen minimum zones (OMZs), also known as dead zones, which affect the processes by which carbon is captured and sequestered on the seafloor and alter the microbial activities that impact the rate and magnitude of ocean carbon sequestration. Despite the importance of these effects, very little is known about the metabolism of OMZ microbes and how they respond to environmental changes.

Color differences within and between species have common genetic origin

ANN ARBOR, Mich.---Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest living relatives.

The body hair difference is even more pronounced between the two species than within our own species.

Team led by Scripps Research and UC San Diego scientists reveals secrets of drought resistance

La Jolla, CA, October 21, 2009 – A team of biologists in California led by researchers at The Scripps Research Institute and the University of California (UC), San Diego has solved the structure of a critical molecule that helps plants survive during droughts. Understanding the inner workings of this molecule may help scientists design new ways to protect crops against prolonged dry periods, potentially improving crop yields worldwide, aiding biofuels production on marginal lands and mitigating drought's human and economic costs.

Female choice benefits mothers more than offspring

The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. But why do females choose among males? In a new study published today in Current Biology, researchers from Uppsala University found no support for the theory that the female choice is connected to "good genes".

Biochemical 'on-switch' could solve protein purification challenge

Drugs based on engineered proteins represent a new frontier for pharmaceutical makers. Even after they discover a protein that may form the basis of the next wonder drug, however, they have to confront a long-standing problem: how to produce large quantities of the protein in a highly pure state. Now, a multi-institutional research team including a biochemist at the National Institute of Standards and Technology (NIST) may have found* a new solution in an enzymatic "food processor" they can activate at will.

Scientists get first glimpse of RNA network in living bacterial cells

BOSTON -- Scientists who study RNA have faced a formidable roadblock: trying to examine RNA's movements in a living cell when they can't see the RNA. Now, a new technology has given scientists the first look ever at RNA in a live bacteria cell—a sight that could offer new information about how the molecule moves and works.

Inventive approach may improve enzyme replacement therapy for Fabry disease

A new study uses a creative structure-based remodeling strategy to design a therapeutic protein that exhibits significant advantages over currently available treatments for a rare disease that often leads to cardiac and renal failure. The research, published by Cell Press on October 22nd in the American Journal of Human Genetics, describes a new and highly promising candidate for enzyme replacement therapy (ERT) for Fabry disease.

Boosting production of IL-17 could lead to effective tularemia vaccine

PITTSBURGH, Oct.22 – Immunologists at the University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh of UPMC have found a unique quirk in the way the immune system fends off bacteria called Francisella tularensis, which could lead to vaccines that are better able to prevent tularemia infection of the lungs. Their findings were published today in the early, online version of Immunity.

FLASH discovery suggests link between messenger RNA formation and apoptosis

A study from the University of North Carolina at Chapel Hill has identified a key player in a molecular process essential for DNA replication within cells.

The white stuff: Marine lab team seeks to understand coral bleaching

With technology similar to that used by physicians to perform magnetic resonance imaging (MRI) scans, researchers from six institutions—including the National Institute of Standards and Technology (NIST)—working at the Hollings Marine Laboratory (HML) in Charleston, S.C., are studying the metabolic activity of a pathogen shown to cause coral bleaching, a serious threat to undersea reef ecosystems worldwide.

Extra care for outwardly healthy workers costs companies millions annually

ANN ARBOR, Mich.---Someone healthy enough to work could still cost an employer more than $4,000 annually in unnecessary health care costs.

A new University of Michigan study shows workers with metabolic syndrome (MetS) and associated chronic disease can cost employers up to $5,867 annually in health care, pharmacy and short term disability---compared to $1,600 for a healthy worker. But the good news: Companies can stop those chronic health problems before they start.

Scientists of the UGR obtain a bioinsecticide to control the Mediterranean fruit fly

This release is available Spanish.

The Mediterranean fruit fly, Ceratitis capitata, is a world plague which represents one of the most serious problems for agriculture. However, the control methods currently present in the market for this plague are ineffective.