Building a new ski run by bulldozing a mountainside, rather than only cutting its shrubs and trees, is far more damaging ecologically, yet might offer only a week's earlier start to the downhill season, says a new UC Davis study.
Even that extra week of revenue may be partly offset by higher summer maintenance costs.
ANN ARBOR, Mich.---It's commonly known that plants interact with each other on an everyday basis: they shade each other out or take up nutrients from the soil before neighboring plants can get them. Now, researchers at the University of Michigan have learned that plants also respond to the past.
The research appears in the February 2010 issue of the American Naturalist.
OAK BROOK, Ill. – In a new study published in the January issue of Radiology, 42 percent of women eligible for breast cancer screening with MRI declined to undergo the procedure.
Blacksburg, Va. – An unusual bowstring truss iron bridge that carried traffic across Roaring Run in Bedford County, Va. for almost 100 years is now a picturesque footbridge at the I-81 Ironto, Va. rest stop. Built in 1878, it is the oldest standing metal bridge in Virginia. In early December, a Virginia Tech undergraduate conducted a load-bearing analysis of the structure.
The premiere issue of an aging-focused newsletter deals with two pressing societal concerns — the economic downturn and health care reform — from the perspective of older minority adults.
WHAT'S HOT is the newest publication from The Gerontological Society of America (GSA), the country's largest interdisciplinary organization devoted to the field of aging. Support for this issue was provided by sanofi-aventis.
A team of researchers from the University of Vigo, Rutgers University in the United States and Imperial College London, in the United Kingdom, has developed "laser spinning", a novel method of producing glass nanofibres with materials. They have been able to manufacture bioglass nanofibres, the bioactive glass used in regenerating bone, for the first time.
Due to a lack of suitable studies, it remains unclear whether children and adolescents with type 1 diabetes benefit more or less from long-term treatment with rapid-acting insulin analogues than with short-acting human insulin. Certainly, there is no proof of additional benefit from the available results from clinical trials of maximum one year duration. This applies both in the comparison with human insulin and in the comparison between analogues only.
Many alcoholic beverages contain byproducts of the materials used in the fermenting process. These byproducts are called "congeners," complex organic molecules with toxic effects including acetone, acetaldehyde, fusel oil, tannins, and furfural. Bourbon has 37 times the amount of congeners that vodka has. A new study has found that while drinking a lot of bourbon can cause a worse hangover than drinking a lot of vodka, impairment in people's next-day task performance is about the same for both beverages.
A widely used test for measuring nighttime blood pressure may interfere with patients' sleep, thus affecting the results of the test, reports a study in an upcoming issue of Clinical Journal of the American Society of Nephrology (CJASN).
Patients with sudden loss of kidney function, called acute kidney injury (AKI), are more likely to die prematurely after leaving the hospital—even if their kidney function has apparently recovered, according to an upcoming study in Journal of the American Society of Nephrology (JASN). "Our study found that risk of death remains elevated long after the acute kidney injury," comments Jean-Phillipe Lafrance, MD (Center for Health Quality, Outcomes, and Economic Research, Bedford, MA).
FINDINGS:Historically, authorities have used broad media campaigns to encourage the public to prepare for disasters — an approach that has proven largely ineffective. For this new study, UCLA researchers sought to test novel, culturally tailored, informal social networking approaches to improve disaster preparedness, using data on 231 Hispanics in Los Angeles County.
Alzheimer's disease and other forms of dementia represent an exponentially growing social and health care challenge for American families – not only family members who face the progressive brain disease, but also those who love them.
In the study, Franck and co-lead author Stacey Maskarinec, who both conducted the experiments while graduate students at the California Institute of Technology, placed cells on top of a 50-micron-thick water-based gel designed to mimic human tissue. They added into the gel spheres about a half-micron in diameter that lit up when jostled by the cells' actions. By combining two techniques — laser scanning confocal microscopy and digital volume correlation — the scientists tracked the cells' movement by quantifying exactly how the environment changed each time the cell moved.
SEATTLE – Despite a 100-fold increase in H1N1 influenza cases in the Seattle area during spring 2009, an aggressive infection control program to protect immunocompromised cancer patients and thorough screening measures resulted in no corresponding increase in H1N1 cases among the total patient population at the Seattle Cancer Care Alliance, according to a new study by researchers and physicians at Fred Hutchinson Cancer Research Center and the SCCA.
GAINESVILLE, Fla. — University of Florida researchers at work on a malaria elimination study in Africa have become the first to predict the spread of the disease using cell phone records.
The scientists analyzed more than 21 million calls to determine how often residents of Zanzibar travel and where they go. A semi-autonomous region composed of two islands off the coast of Tanzania in East Africa, Zanzibar has drastically reduced malaria in recent years. Its government commissioned the study as part of deliberations on whether to launch a total elimination campaign.