Semiconductor nanocrystals, also called quantum dots, with uninterrupted and bright photoluminescence are expected to bring groundbreaking advancements to luminescent displays, solar cells and biological imaging. Although highly-luminescent quantum dots based on cadmium and lead chalcogenides have been developed, stochastic fluctuation of photoluminescence intensity, also called blinking, continues to be a major challenge in the applications of these tiny crystals to single molecule imaging and single photon devices.

Abstract: Renyi entropy was discovered by the Hungarian mathematician Alfred Renyi in 1961 as a measure of information alternative to Shannon entropy when one desires only a weaker form of additivity as opposed to strong additivity. Relative alpha-entropy  is the Renyi analogue of relative entropy (Kullback-Leibler divergence). In this talk I will discuss four problems, namely Campbell’s source coding problem, Massey-Arikan’s guessing problem, Huieihel et al.’s memoryless guessing problem, and Bunte-Lapidoth’s encoding of tasks problem.

Title: Predictions in Ungauged Basins: An approach for regionalization of hydrological models

Protein post-translational modifications (PTMs) refer to the covalent addition of functional groups onto a protein. They offer another dimension to the functional diversity of the proteins and allow them to do chemistry that is otherwise difficult. Thus, a deeper understanding on the regulatory mechanism of different PTMs can provide critical insights into various underlying cellular processes. In this talk, I will share two PTM-related stories from a chemical biology standpoint.