Tech

Baltimore, MD—Scientists working at the Carnegie Institution's Department of Embryology, with colleagues, have overturned previous research that identified critical genes for making muscle stem cells. It turns out that the genes that make muscle stem cells in the embryo are surprisingly not needed in adult muscle stem cells to regenerate muscles after injury. The finding challenges the current course of research into muscular dystrophy, muscle injury, and regenerative medicine, which uses stem cells for healing tissues, and it favours using age-matched stem cells for therapy.

Baltimore, MD, and Christchurch, NZ – June 25, 2009 – Veritide Ltd., a developer of innovative biological identification and detection solutions, today reported that new independent data to be presented at the Biodetection Technologies 2009 conference confirm the exceptional accuracy of its Ceeker™ (pronounced "seeker") portable bacterial detection device in discriminating between anthrax spores and similar-looking hoax substances.

Cincinnati, OH, June 25, 2009 -- Many parents worry about their child's exposure to phthalates, the chemical compounds used as plasticizers in a wide variety of personal care products, children's toys, and medical devices. Phthalate exposure can begin in the womb and has been associated with negative changes in endocrine function. A new study soon to be published in the Journal of Pediatrics examines the possibility that in utero phthalate exposure contributes to low birth weight in infants.

In addition to providing fundamental insights into the early evolution of the estrogen receptor, research by a team at the University of California, San Diego School of Medicine may lead to a contraceptive for female lampreys – a jawless fish considered an invasive pest species in the Great Lakes region of the United States. This could prove important to the Great Lakes region, where lampreys aggressively consume trout, salmon, sturgeon and other game fish.

Researchers at the University of California, San Francisco Center for Excellence in Primary Care, as lead authors on commentaries in two of the nation's leading medical journals this week, call for a national effort to revive primary care as part of health care reform legislation.

CHAMPAIGN, Ill. – A team of researchers at the University of Illinois has created the world's first acoustic "superlens," an innovation that could have practical implications for high-resolution ultrasound imaging, non-destructive structural testing of buildings and bridges, and novel underwater stealth technology.

ATLANTA—June 24, 2009—A new study suggests that a drop in colorectal cancer incidence seen nationwide has not occurred among people living in poorer communities, and suggests that barriers to health care may be to blame. The study appears online in the journal Cancer Causes and Control.

The federal government's health care reform effort aims to get greater value from the nation's health care system and improve care for patients. Comparative effectiveness research offers one way to achieve these goals by weighing the benefits and risks of different tools and approaches to care to determine which work best in various circumstances and settings.

AMES, Iowa - Dramatic price fluctuations, increasing demand, the food vs. fuel debate, and other events of the past year may have food producers wondering which way is up.

Despite these recent uncertainties, 'up' is precisely the direction an Iowa State researcher believes agriculture is headed for at least the next 10 years.

Wally Huffman, professor in agricultural economics and Charles F. Curtiss Distinguished Professor in Agriculture and Life Sciences, predicts supply will go up, demand will go up, and real prices of grain and oilseeds also will go up.

ANN ARBOR, Mich.---Physicists have found a way to drastically prolong the shelf life of quantum bits, the 0s and 1s of quantum computers.

These precarious bits, formed in this case by arrays of semiconductor quantum dots containing a single extra electron, are easily perturbed by magnetic field fluctuations from the nuclei of the atoms creating the quantum dot. This perturbation causes the bits to essentially forget the piece of information they were tasked with storing.

A quantum dot is a semiconductor nanostructure that is one candidate for creating quantum bits.