Tech

BOZEMAN, Mont. -- Visitors to national parks and forests are encouraged to use bear spray when they encounter grizzlies, but disposing of the bear spray canisters is a problem that three Montana State University engineering students addressed for their senior capstone project, sponsored by the Gallatin National Forest.

Ashley Olsen, a Butte native who graduated from MSU in December, returned to campus Wednesday to demonstrate a bear spray recycling machine she developed over the past year with Seth Mott of Helena and Kyle Hertenstein of Great Falls.

MADISON — A team of University of Wisconsin-Madison engineers has developed a highly efficient, environmentally friendly process that selectively converts gamma-valerolactone, a biomass derivative, into the chemical equivalent of jet fuel.

The simple process preserves about 95 percent of the energy from the original biomass, requires little hydrogen input, and captures carbon dioxide under high pressure for future beneficial use.

PITTSBURGH—Just think, every time you feed Fido or flip a spoonful of sugar into your coffee cup, you use more than 300 gallons of water.

Checking the amounts of water it takes to make a $1 worth of sugar, cat and dog food or milk is part of a comprehensive study by Carnegie Mellon University researchers to document American industry's thirst for this scarce resource.

The maximal standardized uptake value (called SUVmax) measured from FDG PET readings taken from the primary tumor in head and neck squamous cell carcinoma patients before treatment is a strong predictor of disease-specific survival, overall survival and disease-free survival, while pretreatment SUVmax for lymphodenopathy is strongly associated with distant metastasis, according to a study presented at the Multidisciplinary Head and Neck Cancer Symposium, sponsored by AHNS, ASCO, ASTRO and SNM.Since the head and neck area of the body is very rich in lymphatic drainage, it is common for head

INDIANAPOLIS – Whether an individual is treated for a hip fracture at a hospital reimbursed by Medicare or is treated at a Department of Veterans Affairs Medical Center makes a significant difference in what happens to the patient after release from the medical facility, according to a large study which may contribute to the ongoing debate on how to pay for health care.

TEMPE Ariz. – A balanced diet, exercise and reduced stress not only can lead to a longer life, but also better reproduction, according to a new study by a team of researchers, including one from Arizona State University, on barn swallow nutrition and mating habits.

The study shows that swallows who maintained a positive antioxidant balance over the course of their breeding season were those who produced the most young.

February 24, 2010, New Orleans, LA. Advanced cancer patients who regularly received massages averaging 14 minutes or more by a partner or family member declined in stress scores over four weeks, according to results of a study reported at the 7th annual conference of the American Psychosocial Oncology Society.

North Grafton, Mass., February 25, 2010 – A study involving the world's deadliest substance has yielded a new strategy to clear toxins from the body—which may lead to more efficient strategies against toxins that may be used in a bioterrorist event, as well as snake bites, scorpion stings, and even some important chronic diseases.

A new University of Colorado at Boulder study indicates North American barn swallows outperform their peers in reproduction -- the "currency" of evolutionary change -- by maintaining a positive balance of antioxidants commonly sold in health food stores.

MADISON, WI, February 22, 2010 -- Peppermint (Mentha x piperita L.) essential oil is a major aromatic agent used extensively in chewing gum, toothpaste, mouth washes, pharmaceuticals, and confectionary and aromatherapy products.

Lactose intolerance is a real and important clinical syndrome, but quantifying its public health burden is challenging. An NIH Consensus Development panel was convened this week to assess the available evidence on lactose intolerance and health across the age spectrum and across racial and ethnic groups.

WASHINGTON, Feb. 24—As part of LaserFest, the year-long celebration of the 50th anniversary of the first working laser, the Optical Society (OSA) and the American Physical Society (APS) sponsored a special day-long seminar on the birth, growth and future developments in laser science and technology at the 2010 American Association for the Advancement of Science (AAAS) annual meeting. The seminar, titled "The History and Future of Laser Technology," took place Sunday, Feb. 21 in San Diego at the meeting, considered the world's largest interdisciplinary science forum.

A University of Iowa study supports an earlier UI report that found polychlorinated biphenyls (PCBs) in sediments lining the Indiana Harbor and Ship Canal (IHSC) in East Chicago, Ind. The study also presents data showing that the sediments are a significant source of PCBs found in surrounding air and in Lake Michigan.

The study appears in the online edition of the journal Environmental Science and Technology (ES&T), a publication of the American Chemical Society and is scheduled for formal journal publication in April.

A laser technique best known for its use to remove unwanted tattoos from the skin is finding a second life in preserving great sculptures, paintings and other works of art, according to an article in ACS' monthly journal, Accounts of Chemical Research. The technique, called laser ablation, involves removing material from a solid surface by vaporizing the material with a laser beam.

Scientists are reporting an advance toward scavenging energy from walking, breathing, and other natural body movements to power electronic devices like cell phones and heart pacemakers. In a study in ACS' monthly journal, Nano Letters, they describe development of flexible, biocompatible rubber films for use in implantable or wearable energy harvesting systems. The material could be used, for instance, to harvest energy from the motion of the lungs during breathing and use it to run pacemakers without the need for batteries that must be surgically replaced every few years.