A “Pushy” Microscope

Bispecial factors in circular non-pushy D0L languages

We study bispecial factors in fixed points of morphisms. In particular, we propose a simple method of how to find all bispecial words of non-pushy circular D0L-systems. This method can be formulated as an algorithm. Moreover, we prove that non-pushy circular D0L-systems are exactly those with finite critical exponent. keywords: bispecial factors, circular D0L systems, non-pushy D0L systems, cri...

Pushy versus meek - using avatars to influence turn-taking behaviour

The flow of spoken interaction between human interlocutors is a widely studied topic. Amongst other things, studies have shown that we use a number of facial gestures to improve this flow – for example to control the taking of turns. This type of gestures ought to be useful in systems where an animated talking head is used, be they systems for computer mediated human-human dialogue or spoken di...

A MATLAB-based Microscope

A scanning cavity microscope

Imaging the optical properties of individual nanosystems beyond fluorescence can provide a wealth of information. However, the minute signals for absorption and dispersion are challenging to observe, and only specialized techniques requiring sophisticated noise rejection are available. Here we use signal enhancement in a high-finesse scanning optical microcavity to demonstrate ultra-sensitive i...

A Beta-Ray Microscope.