Upcoming
Past
People spend hours a day interacting in online settings, ranging from social media sites to a broad range of digital communities designed for work, education and entertainment. Such systems are generally intended to elicit particular activities or forms of engagement, yet we have relatively little understanding of the resulting behaviors or of how system design may contribute to those behaviors. This talk will discuss work that aims to develop models of human behavior in online settings, both to inform system design but also to address fundamental questions in the social sciences.
- Lecture
- Watch Video
In this lecture, Hazen will examine how Earth’s near-surface environment has evolved as a consequence of selective physical, chemical and biological processes — an evolution that is preserved in the mineralogical record.
- Lecture
- Watch Video
Kathryn Zurek will review evidence for the presence of dark matter in our universe and the need for a new theory to describe the dark matter sector.
- Lecture
- Watch Video
One of the characteristic features of life — specificity — emerges in metabolism, information transfer from DNA to protein, embryology, immunology and virtually every other process. Its explanation on the molecular level is thermodynamic stability and structural complementarity. Yet one disturbing issue persists: the protein and nucleic acid sequences coding for that specificity are generally too small to distinguish actual partners from competitors. Similarly, protein degradation conveys specificity through very short sequences. The process is so kinetically complex that bulk kinetic experiments and a few molecular structures are insufficient to explain how specificity is achieved. Using single molecule kinetic measurements, we have deconvolved much of that specificity.
- Lecture
In this lecture, Eiichiro Komatsu will describe the ‘cosmic microwave background,’ the light remnants of the Big Bang.
- Lecture
- Watch Video
- Previous Page
- Viewing
- Next Page