Events

  • Seminar: Of triangles, gases, prices and men

    Speaker
    Cedric Villani

  • Seminar: Novel aspects coming from the directionality of online relationships: a case study of Twitter (POSTPONED)

    Speaker
    Haewoon Kwak

    Description The online relationship in Twitter, known as follow, is directed. People can follow any other person without an approval. In this talk I show novel aspects of Twitter that come from the directionality in relationships: topological characteristics of the directed network, word-of-mouth information spreading via retweet, and online relationship dissolution.

  • International Conference and School on Network Science

    Description

    Mark your calendars. NetSci 2013 will take place on June 3-7, 2013 at the Royal Library in Copenhagen, Denmark. On June 3-4 we’ll have the NetSci School and Satellites, and the main conference will take place on June 5-7. The conference universities are the Niels Bohr Institute (University of Copenhagen) and the Technical University of Denmark.

  • Seminar: Pulling on single biological molecules: a powerful tool for studying diverse systems

    Speaker
    Thomas Perkins

    Description Single molecule force spectroscopy is a powerful tool to measure the dynamics of individual bio-molecules. My talk will focus on several distinct results based on a common assay, pulling on single molecules using two different measurement platforms, optical tweezers and atomic force microscopy. First, we studied the dynamics of overstretching DNA and thereby provided insight into the mechanism of overstretching, a 16 year old controversy. Next, we studied the dynamics of a pair of canonical DNA intercalators and learned that binding/unbinding and intercalation/de-intercalation are distinct processes that can occur on very different time scales. By using a state of the art optically stabilized AFM, we studied the folding and unfolding of a model membrane protein. Finally, I will highlight a recent 10-fold improvement in force precision of AFM for biological application.

  • Seminar: The striking robustness of time-evolving word co-occurrence networks

    Speaker
    Francesc Font Clos