Carbon Families, Their Own Diversity

Mobile Antibiotic Resistance Encoding Elements Promote Their Own Diversity

Integrating conjugative elements (ICEs) are a class of bacterial mobile genetic elements that disseminate via conjugation and then integrate into the host cell genome. The SXT/R391 family of ICEs consists of more than 30 different elements that all share the same integration site in the host chromosome but often encode distinct properties. These elements contribute to the spread of antibiotic r...

Minds of their own.

L ike a miniature Segway with eyes, a robot built from 3D printed plastic does laps around a cubicle here at Brain Corporation, having learned in a matter of minutes to avoid bumping into walls as it roams. As eyeRover scoots away, Peter O'Connor, a staff scientist at the robotics software company, steps into its route. Using a remote control unit, he briefly takes control of the foot-tall robo...

In Their Own Words

The author reviews three books written during the 1990s which rely on oral history to explore the lives of Japanese picture brides, refugees, and female Native elders. This article reveals how these three works succeed in using oral history to give voice to the individuals from these non-hegemonic groups that had been neglected by scholars in the past. It also explores some of the pitfalls that...

Their Own Orchestra

Last September we decided to have an orchestra. This was rather like having an idea and finding the bricks and mortar afterwards. Actually it was not bricks and mortar, but human beings, with whom we were concerned, and we felt that our ground plan would have to be fairly elastic to allow for their various idiosyncrasies. We had had a good deal of music in a passive way at Warlingham for some t...

A Home of Their Own