Brain’s control network splits in two as children approach adulthood

Two recently discovered control networks that govern voluntary brain activity in adults start life as a single network in children, report neuroscientists at the School of Medicine. Researchers previously showed the networks supervise most goal-oriented brain activity, enlisting the specialized talents of multiple brain regions for goal-oriented tasks as diverse as reading a word, listening to music or searching for a star. They were surprised to find the two networks merged together in children.

Protecting free speech of state judicial candidates has not hurt court legitimacy

GibsonA 2002 U.S. Supreme Court decision protecting the right of judicial candidates to speak freely about controversial issues opened the door for state judicial election campaigns to become increasingly nasty, bitter and politicized. However, the Court’s decision has not directly damaged the court system’s legitimacy in the eyes of citizens, suggests a new study from Washington University in St. Louis.

Biologist offers WUSTL program as way to incorporate genomics into curricula

The next generation of consumers will be the true beneficiaries of the promise of genomics. But how will they make informed choices in a world resplendent with genomics products, including tools to predict disease and the engineered drugs to treat those diseases? The answer, says Sarah C.R. Elgin, Ph.D., WUSTL professor of biology in Arts & Sciences, is more genetics and genomics at every level of American education.

Students should use common sense when posting to Facebook.com, says expert

CoburnThink you know your daughter’s potential college roommate for her freshman year? Think again. Not to imply that your daughter will be rooming with an alien being, but as Facebook.com continues to gain popularity, it’s become easier for students to post information that may or may not always be true, which can pose problems for professors, friends and future employers. Students need to remember that a Facebook.com posting becomes public information. And the persona they create online may be hard to maintain once they arrive on campus, says a leading expert on the college experience.

Circumstellar space: Where chemistry happens for the very first time

NASA/JPL-Caltech/E.Churchwell (U. of WisconsinThe nebula RCW49 is a nursery for newborn stars and exists in circumstellar space, where chemistry is done for the very first time.Picture a cool place, teeming with a multitude of hot bodies twirling about in rapidly changing formations of singles and couples, partners and groups, constantly dissolving and reforming. If you were thinking of the dance floor in a modern nightclub, think again. It’s a description of the shells around dying stars, the place where newly formed elements make compounds and life takes off, said Katharina Lodders, Ph.D., research associate professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis.

Researchers discover pathway to cell size, division

Researchers at Washington University in St. Louis have discovered through genetic analyses a metabolic pathway in bacteria comprised of just three genes, all known to be players in metabolism. This pathway was previously shown to be involved in synthesizing modified membrane lipids but data from Petra Levin’s lab indicate that it also has a major role in cell division. This is the first identification of a pathway responsible for regulating bacterial cell size.

Horse Series

Horse Series by Robert Boston is currently on display on the second floor of the Ferrell Learning and Teaching Center. The photos in the series focus on the world-famous Clydesdale horses at Grant’s Farm.

Genetic finding sheds light on diseases causing blood vessel breakdown

Twenty-one years after they first described a fatal genetic disorder in Missouri and Arkansas families, scientists at the School of Medicine have linked the condition to mutations in a gene known as TREX1. The study appears online in Nature Genetics. The identification will accelerate efforts to understand and treat retinal vasculopathy with cerebral leukodystrophy (RVCL), a rare condition that usually goes unrecognized or is misdiagnosed.

Bush power struggle with Congress poses messy constitutional, political issues, expert says

Steven SmithBy claiming far-reaching and unprecedented executive privilege in its power struggles with the U.S. Congress, the Bush White House has roiled the political waters, forcing both Democrats and Republicans to weigh near-term political consequences of their response against a real and tangible threat to the long-term constitutional powers of Congress, suggests a congressional expert from Washington University in St. Louis.
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