TDR (Tesis Doctorales en Red) es un repositorio cooperativo que contiene, en formato digital, tesis doctorales leídas en las universidades de Catalunya y otras comunidades autónomas.
Servicio participativo/red social de literatura. Es una comunidad de lectoras en la que, entre otras cosas, tienes la posibilidad de comentar libros, recomendarle libros a otros usuarios y comprarlos.
FIRE ANTS BUILD RAFTS Red fire ants have an amazing ability to survive floods. As waters rise, the ants stream from their nests, start gripping onto ants beside them, and form living ant rafts that float and carry them to safety. This is an extraordinary engineering feat, considering each ant is denser than water and would normally sink. New research this year, using a CT scan, has given us a closer look at how they do this. Each ant connects to another ant between 8 and 20 times—all six legs connect to another ant, and each ant is contacted many times by neighbor ants. Besides connecting to neighbor ants, each ant actually pushes other ants away, which introduces air pockets between their bodies. By doing this, the mass of heavy ants easily floats downstream or to the nearest solid ground.
On May 8, 1828, Swiss businessman and social activist Henry Dunant was born. He is best known for the creation of the International Committee of the Red Cross in 1863. Also the 1864 Geneva Convention was based on Dunant's ideas. In 1901 he received the first Nobel Peace Prize together with Frédéric Passy.
The Tory and Labour parties colluded in forcing through a piece of draft legislation today - the Digital Economy Bill - which is one of the most barefaced examples of Olde Media trying to protect it's position via legislative muscle.