Recommendation systems are commonly used in e-commerce to suggest relevant content to users. Popular examples include Amazon, iTunes Genius, Google News and typically they operate on a corpus of millions of users/items.

In this talk, we begin with an overview of technology evolution towards 4G. We also outline candidate technologies for 4G wireless standard.

Particle Physics Experiments offer wide scope for software design and development. Be it simulations, data acquisition systems and statistical analysis, software plays a very crucial role in achieving the goals of an experiment.

I shall describe two approaches to the study of self-assembly. The first approach involves experiments with DNA molecules. We use DNA like a construction material --- akin to the uses of brick, cement, glass, etc.