Closing the Nanographene Gap: Surface-Assisted Synthesis of Peripentacene from 6,6′-Bipentacene Precursors

Tetrabenzocircumpyrene: a nanographene fragment with an embedded peripentacene core.

A new disc-shaped highly symmetric C54H20 nanographene fragment, tetrabenzocircumpyrene, has been synthesized and characterized by scanning tunnelling microscopy, demonstrating the potential of this technique for identifying highly insoluble graphenic molecules.

Closing the Technology Gap? Closing the Technology Gap?

This paper focuses on the dimensions shaping the dynamics of technology. We present a model where the knowledge stock of a country grows over time as a function of three main factors: its innovation intensity, its technological infrastructures and its human capital. The latter two variables contribute to determine the absorptive capacity of a country as well as its innovative ability. Based on ...

Closing the Gap from Policy to Practice

One of the frustrations of life for those who seek change, is the slow pace of reform. Policy reform in arts and culture is no exception. Governments offer promises, but they seem to take forever to arrive, and are often watered down when they do. Why is this so? We have no shortage of policies, Acts, discussion papers and other worthy documents telling us how things could change, but there is ...

Closing the Generation Gap

I describe recent examples of phase transitions in four-dimensional M theory vacua in which the net generation number changes. There are naive obstructions to transitions lifting chiral matter, but loopholes exist which enable us to avoid them. I first review how chirality arises in the heterotic limit of M theory, previously known forms of topology change in string theory, and chirality-changi...

Closing the Gender Gap