On Thursday, mathematician Benoît Mandelbrot died of pancreatic cancer at age 85. Mandelbrot is most famous for coining the term "fractal," which he applied to fields as diverse as physics and finance. In 2007, an undergraduate at Cornell University named Pisut Wisessing created this video about the Mandelbrot set, a series of complex numbers that, when plotted, form an intricate fractal. The video is based on a song by Jonathan Coulton, who has penned other science-based music. (Warning: There is some explicit language.)
Clade C es el subtipo más prevalente de HIV-1 en el mundo. La estructura cristalina del núcleo de clade C gp120 es descrito por Bjorkman y colegas, en conjunto con el complejo CD4 y el receptor CD4 - inducidos por anticuerpo. El trabajo revela que el anticuerpo hace contacto con ambos, gp120 y CD4. La portada de la revista muestra una escultura de vidrio de una partícula viral realizada por el artistaLuke Jerram (http://www.lukejerram.com/projects/glass_microbiology).pp 608–613
