Humanities & Society

An electron micrograph of strep bacteria infecting muscle tissueMicrobiologists at the School of Medicine discovered that Strep A, the bacteria responsible for strep throat and other more serious disorders, has a wasplike “stinger” it uses to infect cells. Scientists had expected to find a random profusion of pumps for spraying infection-related compounds. The newly discovered, dedicated stinger could prove to be an easier target for new infection-preventing drugs.

Joe Angeles / WUSTL PhotoA new book co-authored by a memory researcher at Washington University in St. Louis is one-stop shopping for all the questions we have about memory and how serious our lapses might be as we grow older. Mark A. McDaniel, Ph.D., professor of psychology in Arts & Sciences at WUSTL, says his book, Memory Fitness: A Guide for Successful Aging, relies on many rigorous academic studies but is written for the lay person. “Our mission is to give the general public a good idea of what they can reasonably expect from their memory capabilities as they age,” says McDaniel about the book he co-authored with Gilles O. Einstein, Ph.D., professor and chair of the psychology department at Furman University. “It also outlines some reasonable expectations about things people can do to perhaps increase their memory performances.”

Joe Angeles / WUSTL PhotoIf in doubt, throw it out!A power outage. It can happen at any time of year for any number of reasons: a strong spring thunderstorm; an increased demand for air conditioning; heavy snow or ice on power lines or tree limbs; or even a wayward driver crashing into a utility pole. Whatever the cause, a power outage can spoil more than just that TV show you’re watching or the book you’re reading. A lack of refrigeration can jeopardize the safety of food. But what do you need to pitch and what can you keep once the power comes back on?

Courtesy NASA/JPL-CaltechEngaging students in the power of mathematics is key to a strong curriculum.As parents are taking advantage of back-to-school sales and stocking up on supplies like calculators, pens and pencils, a math education expert at Washington University in St. Louis suggests they also may want to check out the quality of their children’s math education. According to the Trends in International Mathematics and Science Study, the United States continues to lag further behind other developed nations in mathematics education. A critical part of the solution, says Jere Confrey, Ph.D., professor of education in Arts & Sciences, is for school districts to select and implement a solid curriculum with interesting, compelling and rigorous mathematics and then to carefully monitor and evaluate students’ progress while using that curriculum.

David Kilper / WUSTL PhotoBottled water or tap? A WUSTL environmental engineer specializing in aquatic chemistry sees no difference between the two in terms of health.Paying extra for bottled water? You may be wasting your money, says an expert in aquatic chemistry. Daniel Giammar, Ph.D., a faculty member in the Environmental Engineering Science Program at Washington University in St. Louis, says that tap water is just as safe to drink as bottled water. He also says that the pricey bottled water you value so highly might well be nothing more than repackaged tap water. “The tap water we drink meets very strict standards that are designed to protect our health,” Giammar says. “These are developed over many years of study and they all include fairly large factors of safety. Any differences between tap and bottled water, in terms of health, are negligible.”

“Give me a one-armed economist,” President Harry S. Truman once demanded as he vented his frustration over economic advisors who offer straightforward recommendations, then hedge their bets by tacking on a slew of caveats, often beginning with the phrase “but, on the other hand…” Now, Murray Weidenbaum, the chairman of President Ronald Reagan’s first Council of Economic Advisers, has published a compilation of essays that offers the clear, no-nonsense economic policy analysis that Truman craved. Titled One-Armed Economist: On the Intersection of Business and Government, the book provides a distillation of four decades of Weidenbaum’s writings on key public policy issues.

Washington University has a number of internationally recognized experts and researchers on terrorism and homeland security who can address issues including intelligence, critical infrastructure, cybersecurity, target identification, and many other areas of concern related to the latest news on threats to the U.S. Faculty associated with the University’s Center for Security Technologies may be of […]

As the Oct. 8 presidential debate looms closer, many in the University community are hard at work preparing for its arrival. The University will host the debate scheduled for 8 p.m. Oct. 8 in the Athletic Complex. This is the fourth consecutive time the University has been selected by the Commission on Presidential Debates, the event’s sponsor, to serve as a host.

Everyone sweats, but it’s unlikely many people ever consider the social and economic impact of our bodies’ built-in air conditioning system. With summer’s hottest days likely still to come, Michael Heffernan, assistant professor of dermatology at the School of Medicine, helps St. Louis Post-Dispatch writer Jeff Daniels take a closer look at this hot topic.

Scientists have known for years that eating less tends to make animals live longer, but no one is quite sure why. Several School of Medicine researchers studying the effects of caloric restriction on humans may help provide an answer to that question. This story was written by Tina Hesman and published by the St. Louis Post-Dispatch.