Re-Configuring Governance: Politics, Process and Policy - Editorial

(with G Anthony and E Meehan)

Re-exploration of the PHCCC Scaffold: Discovery of Improved Positive Allosteric Modulators of mGluR4

This paper describes a detailed structure activity relationship (SAR) analysis of the metabotropic glutamate receptor 4 (mGluR4) positive allosteric modulator, (-)-N-phenyl-7-(hydroxyimino)cyclopropa[b]-chromen-la-carboxamide (PHCCC). We have now developed compounds with improved potency and efficacy; in addition, compounds are presented that show selectivity for mGluR4 versus the other mGluR subtypes.

Re-imaging the Periphery: The Reproduction of Space in Cairo

This chapter examines Cairo’s path towards reassembling a modern spatial order in one of its oldest quarters, Bulaq Abul Ela, and the implications of this on the spatial experience of its inhabitants. The ambitions of space reproduction in Cairo are revealed during the attempt to engender a debate as to how this vision affected Bulaq’s riverfront zone as its periphery; how it was spatialised and to what extent the planners’ conception of urban space actually responded to the people’s needs when creating a new spatial reality. It uncovers the peripheral/central position that residents assume with regards to their living spaces to reveal new meanings, images, stories and places to replace the increasingly undesirable authentic fabric of Bulaq.

DNA damage induction in dry and hydrated DNA by synchrotron radiation

Radiation biophysics has sought to understand at a molecular level, the mechanisms through which ionizing radiations damage DNA, and other molecules within living cells. The complexity of lesions produced in the DNA by ionizing radiations is thought to depend on the amount of energy deposited at the site of each lesion. To study the relationship between the energy deposited and the damage produced, we have developed novel techniques for irradiating dry prasmid DNA, partially re-hydrated DNA and DNA in solution using monochromatic vacuum-UV synchrotron radiation. We have used photons in the energy range 7-150 eV, corresponding to the range of energies typically involved in the efficient production of DNA single-strand (SSB), and double-strand breaks (DSB) by ionizing radiation. The data show that both types of breaks are produced at all energies investigated (with, or without water present). Also, the energy dependence for DSB induction follows a similar trend to SSB induction but at a 20-30-fold reduced incidence, suggesting a common precursor for both types of damage. Preliminary studies where DNA has been irradiated in solution indicate a change in the shape of the dose-effect curve (from linear, to linear-quadratic for double-strand break induction) and a large increase in sensitivity due to the presence of water.