Biomedical engineer shows how people learn motor skills

Photo by David Kilper / WUSTL PhotoThoroughman (background) and Taylor tracked the moves that people make.Practice makes perfect when people learn behaviors, from baseball pitching to chess playing to public speaking. Biomedical engineers at Washington University in St. Louis have now identified how people use individual experiences to improve performance.

Innovation is necessary to preserve the American Dream in the competitive global market

In the 21st century, the key to remaining competitive with China, India, and the rest of the world will be innovation, a national core competency that will play a critical role in the battle to preserve the American Dream. This view is the subject of a forthcoming book, written by Kenneth Harrington, managing director of the Skandalaris Center for Entrepreneurial Studies at Washington University in St. Louis, and Robert Skandalaris, founder and chairman of Noble International Ltd. While America was built by entrepreneurs, and continues its stronghold on innovation, the co-authors contend that it is no longer a forgone conclusion that America will lead the world in innovation.

Hunter-gatherers more sophisticated than once thought?

Anthropologists uncover new theory on hunter-gatherer communities at one of North America’s largest, oldest earthen mounds, in northeastern Louisiana.The typical picture of the hunter-gatherer community is that of a small number of people wandering across the landscape, hunting for food and gathering nuts and berries. They were not complex in their political and social organization and were thought of as very simple people. But could that traditional viewpoint be completely wrong? An anthropologist at Washington University in St. Louis thinks it may be, especially for hunter-gatherer communities in Southern and Eastern parts of the United States.

Researchers find mutiple proteins that stick to medical devices

Photo by David Kilper / WUSTL PhotoScott (left) and Elbert looking for sticky proteins.Biomedical engineers at Washington University in St. Louis have found a new role for the blood protein serum amyloid P in the body’s response to medical materials, which may help to explain a variety of problems associated with heart-lung bypass, hemodialysis and the use of artificial vascular grafts. Donald Elbert, Ph.D., Washington University assistant professor of biomedical engineering, used advanced protein separations and mass spectrometry to track the proteins on the surfaces of various polymers used in medical devices. The analysis techniques, collectively called ‘proteomics,’ are most often used to study protein expression in cells.

Diabetes prevention programs built around Afrocentric culture successful in changing dietary behavior of African-American women

Preventing Type 2 diabetes among African-American womenWhile culturally traditional foods are a big part of the African-American heritage, they also are a significant factor in the type 2 diabetes epidemic among African-American women. And while the prevalance of type 2 diabetes is associated with higher rates of obesity, diabetes nutrition education programs have been relatively unsuccessful in attracting and retaining African-American women. However a new study shows that there is a way to reach members of this population and make a positive impact on their dietary behavior.

Contemporary corporate architecture’s impact on communities examined

Soumen Rakennustaiteen Museo (SRM)McDonald’s-Finland Headquarters in HelsinkiHas corporate architecture doomed the city? Over the last century, corporate headquarters — as well as churches, universities and government institutions — have been pillars of the urban environment, embodying the culture, values and aspirations of their societies. Yet today’s corporations — competing in global, open-market economies; distanced and disassociated from the means of production — have increasingly situated themselves on the suburban periphery, replacing civic engagement with simple displays of technological prowess. As a result, “corporations must be seen as potential ‘dissolving agents’ of the cities in which they have chosen to locate,” argues Peter MacKeith, associate director of the Sam Fox School of Design & Visual Arts at Washington University in St. Louis, where he also serves as associate dean of Architecture.

Cell phone radiation doesn’t cause cellular stress, doesn’t promote cancer

Cell phone radiation doesn’t stress human cells.Weighing in on the debate about whether cell phones have adverse health effects, researchers at Washington University School of Medicine in St. Louis have found that the electromagnetic radiation produced by cell phones does not activate the stress response in mouse, hamster or human cells growing in cultures. The stress response is a cellular protection mechanism set into motion by various adverse stimuli, including heat shock, heavy metals, and inflammation. High levels of the stress response in cells are thought to result in changes associated with malignancy.

High blood sugar impairs blood flow to heart in diabetics

Poorly controlled blood glucose levels can negatively affect blood flow to the heart.In the heart muscle of type 1 diabetics, high blood glucose is a significant contributor to poorly opening vessels, or poor vasodilation, according to a study by researchers at Washington University School of Medicine in St. Louis. Even administration of high levels of insulin, which usually enhances vasodilation, can’t counteract the negative effect of high glucose on the heart, and this contributes to increased plaque buildup and heart disease.

Sunlight exposure may help prevent periodontal disease

Sunlight promotes healthy teeth.As the days get shorter and colder, it gets harder to spend time in the sun, and that’s probably bad for your teeth. According to an article in the Journal of Periodontology from a researcher at Washington University School of Medicine in St. Louis, our teeth may be light-sensitive, at least indirectly.

Female athletes at risk for gender-related injuries

Women have different sports medicine needs than men.In sports medicine, it isn’t always true that what’s “good for the goose is good for the gander.” Reporting on issues unique to female runners in the journal Physical Medicine and Rehabilitation Clinics of North America, Washington University physical medicine and rehabilitation specialists say women’s bodies adapt to athletic challenges differently. They say that when female athletes get injured, health-care professionals need to consider the anatomic, biomechanical, hormonal and functional factors that are unique to women.