COLUMBUS, Ohio -- Less ice covers the Arctic today than at any time in recent geologic history.
That's the conclusion of an international group of researchers, who have compiled the first comprehensive history of Arctic ice.
For decades, scientists have strived to collect sediment cores from the difficult-to-access Arctic Ocean floor, to discover what the Arctic was like in the past. Their most recent goal: to bring a long-term perspective to the ice loss we see today.
ANN ARBOR, Mich.---A new synthetic Petri dish coating could overcome a major challenge to the advancement of human embryonic stem cell research, say University of Michigan researchers.
Under today's regulations, current stem cell lines have limitations in yielding human therapies because the cells have been grown on animal-based substances that don't behave in predictable ways.
A new study from the David Geffen School of Medicine at UCLA suggests that increasing cigarette taxes could be an effective way to reduce smoking among individuals with alcohol, drug or mental disorders.
The study, published online in the American Journal of Public Health, found that a 10 percent increase in cigarette pricing resulted in an 18.2 percent decline in smoking among people in these groups.
As people head to the beach this summer, very few if any, really know how likely they are to develop skin cancer from their outdoor fun. That's about to change, thanks to a new discovery by an international team of scientists that makes it possible for doctors to access people's personal risk for skin cancer.
A nutrient that's common to all living things can make hibernating marmots hungry - a breakthrough that could help scientists understand human obesity and eating disorders, according to a new study by a Colorado State University biologist.
The study appears in the current issue of the Journal of Experimental Biology. The full paper is available at http://jeb.biologists.org/cgi/reprint/213/12/2031.
A University of Alberta researcher has discovered a rare practice by red squirrels that seems to have human-like dimensions of altruism, but at its heart is also a survival tactic.
U of A researcher Jamieson Gorrell was observing a red-squirrel population when he discovered a female had adopted a newborn squirrel abandoned by its biological mother.
Are new medical residents a threat to patient health? According to sociology professor David Phillips and his student Gwendolyn Barker from the University of California, San Diego, fatal medication errors peak in July in counties with teaching hospitals, which coincides with the yearly influx of new medical residents who are given increased responsibility for patient care.
Their findings are published in the Journal of General Internal Medicine, the official journal of the Society of General Internal Medicine, published by Springer.
The many populations of sockeye salmon in Bristol Bay, Alaska act like a diversified portfolio of investments, buffering fisheries and incomes from the ups and downs of particular stocks. Sockeye salmon are one of the most valuable fisheries in the U.S., and since 1950, more than 60% of that value has come from Bristol Bay.
CHICAGO --- Men who have just had their cancerous prostate gland removed have one pressing question for their doctors: Am I cured? But conventional tests haven't been sensitive enough to provide a concrete answer. Current tests that measure the level of protein called PSA (prostate-specific antigen), which signals the presence of cancer, often detect no PSA, only to have cancer return in up to 40 percent of the cases.
DALLAS – June 4, 2010 – A national study involving a UT Southwestern Medical Center neonatologist provides new insight into how much oxygen preterm infants should receive as well as the optimal way to deliver it to them.
BALTIMORE (June 2, 2010) – One of the best post-exercise recovery drinks could already be in your refrigerator, according to new research presented at the American College of Sports Medicine conference this week. In a series of four studies, researchers found that chocolate milk offered a recovery advantage to help repair and rebuild muscles, compared to specially designed carbohydrate sports drinks.
DETROIT – In the largest study to date of a rare and deadly form of bladder cancer, researchers at Henry Ford Hospital in Detroit found radiation therapy may not improve a patient's chances for survival.
While overall survival for adenocarcinoma of the bladder was poor, the study revealed several factors that may improve a patient's prognosis, including being diagnosed at age 60 or younger, and having cystectomy, a procedure that either removes all or a portion of the bladder.
DALLAS – June 4, 2010 – A minimally invasive technique used to destroy kidney tumors with an electrically controlled heating probe showed similar effectiveness as surgical removal of tumors in curbing cancer recurrence rates for up to five years after treatment.
In an article available online in the journal Cancer, Dr. Jeffrey Cadeddu, professor of urology and radiology at UT Southwestern Medical Center, reported the outcomes of more than 200 patients who were treated with radiofrequency ablation (RFA).
