Science & Technology

Olga Pontes & Craig PikaardThe protein HDA6 shows up as a red stain in this Arabidopsis leaf cell nucleus.A team of researchers, including biologists at Washington University in St. Louis, has discovered the key role one protein plays in a major turn-off — in this case, the turning off of thousands of nearly identical genes in a hybrid plant. Studying the phenomenon of nucleolar dominance, in which one parental set of ribosomal genes in a hybrid is silenced, Craig Pikaard, Ph.D., Washington University professor of biology in Arts & Sciences and colleagues have identified the protein HDA6 as an important player in the silencing. More…

Researchers seeking insights into kidney failure in human infants have located the source of a 30-year-old mystery mutation that causes similar problems in a mouse line.

Photograph of *Spinosaurus* dinosaur bones found in a German museum.A geologist at Washington University has confirmed the discovery of a geologist from another era by discovering presumably lost photographs in a German museum. The finding is important to the history of paleontology. More…

<img src="/news/PublishingImages/4048_t.jpg" alt="Pretty fly — for a fruit fly. The areas stained blue are regions in the fruit fly where the spineless gene is expressed.” height=”211″ width=”150″ />Pretty fly – for a fruit fly. The areas stained blue are regions in the fruit fly where the spineless gene is expressed.A team of researchers that includes biologists from Washington University in St. Louis has discovered that a gene involved in the development and function of the fruit fly antenna also gives the organism its color vision. Claude Desplan, Ph.D., professor of biology at New York University, and his students made the discovery and provided the data. Ian Duncan, Washington University professor of biology, and his wife, research assistant Dianne Duncan, provided the Desplan laboratory fruit fly (Drosophila) clones and mutants and technical assistance that helped locate where the gene, called spineless, is expressed in the retina. More…

“Da police are not here to create disorder; dere here to preserve disorder.” — Richard J. Daley, Chicago mayor, explaining to the media the role of the police during the riotous 1968 Democratic National Convention. David Kilper/WUSTL PhotoThe order team.Police keep order. That’s why, for example, they issue tickets for “disturbing the peace.” Thus the only logical conclusion to Mayor Daley’s famous quote above — other than dismissing it as the result of a tangled tongue — is sometimes disorder spawns order. Sounds impossible, right? Wrong. According to a computational study conducted by a group of physicists at Washington University in St. Louis, one may create order by introducing disorder. More…

Below is a link to the Washington University news release about the U.S. News & World Report undergraduate rankings for 2004-05: http://news-info.wustl.edu/news/page/normal/3627.html To view a full listing of U.S. News magazine, book and Web-only rankings for 2004-05, please visit the U.S. News & World Report site: http://www.usnews.com/usnews/edu/college/rankings/rankindex_brief.php

Anthropologist Eugenie Scott has been involved with some of the high-profile legal trials about the teaching of evolution in the classroom. She is the executive director of the National Center for Science Education. She speaks on intelligent design at the Assembly Series on March 22.

Alexander Calandra, Ph.D., professor emeritus of physical science in physics in Arts & Sciences at Washington University, died Wednesday, March 8, 2006. Calandra, who joined WUSTL in 1947 and retired in 1979, was nationally known for his work in science education. He was 95.

She’s executive director of the National Center for Science Education, a nonprofit organization that defends the teaching of evolution in the public schools.

A member of WUSTL’s cosmic ray research group, he was involved in some of the world’s most successful studies of the composition of galactic cosmic rays.