Discovery of Main-Belt Comet P/2006 VW139 by Pan-STARRS 1

The main-belt asteroid (300163) 2006 VW139 (later designated P/2006 VW139) was discovered to exhibit comet-like activity by the Pan-STARRS1 (PS1) survey telescope using automated point-spread-function analyses performed by PS1's Moving Object Processing System. Deep follow-up observations show both a short (~10'') antisolar dust tail and a longer (~60'') dust trail aligned with the object's orbit plane, similar to the morphology observed for another main-belt comet (MBC), P/2010 R2 (La Sagra), and other well-established comets, implying the action of a long-lived, sublimation-driven emission event. Photometry showing the brightness of the near-nucleus coma remaining constant over ~30 days provides further evidence for this object's cometary nature, suggesting it is in fact an MBC, and not a disrupted asteroid. A spectroscopic search for CN emission was unsuccessful, though we find an upper limit CN production rate of Q CN 100 Myr, while a search for a potential asteroid family around the object reveals a cluster of 24 asteroids within a cutoff distance of 68 m s-1. At 70 m s-1, this cluster merges with the Themis family, suggesting that it could be similar to the Beagle family to which another MBC, 133P/Elst-Pizarro, belongs.

The Crowned Harp: Policing Northern Ireland (reprint 2006, 2010)

The Crowned Harp provides a detailed analysis of policing in Northern Ireland. Tracing its history from 1922, Ellison and Smyth portray the Royal Ulster Constabulary (RUC) as an organisation burdened by its past as a colonial police force. They analyse its perceived close relationship with unionism and why, for many nationalists, the RUC embodied the problem of the legitimacy of Northern Ireland, arguing that decisions made on the organisation, composition and ideology of policing in the early years of the state had consequences which went beyond the everyday practice of policing.

The authors provide an extended discussion of policing after the outbreak of civil unrest in 1969, ask why policing was cast in a paramilitary mould, and look at the use of special constabularies and the way in which the police dealt with social unrest which threatened to break down sectarian divisions. Examining the reorganisations of the RUC in the 1970s and 1980s, Ellison and Smyth focus on the various structural, legal and ideological components, the professionalisation of the force and the development of a coherent, if contradictory, ideology. The analysis of the RUC during this period sheds light on the problematic nature of using the police as a counter insurgency force in a divided society. Perceptions of the police, and the opinions of rank and file members are examined and an assessment is made of the various alternative models of policing, such as community policing and local control. This book offers important lessons about the nature of policing in divided societies.

Review: R. Bellamy, D. Castiglione and J. Shaw (eds.), Making European Citizens (Palgrave Macmillan, 2006)

Review of edited collection.

Review: G. De Búrca and J. Scott (eds.), Law and New Governance in the EU and the US (Hart, 2006)

Review of edited collection.

Plasma concentrations of glucagon-like peptide-2 in adult patients with treated and untreated coeliac disease

Coeliac disease is a common chronic inflammatory enteropathy characterized by villous atrophy and crypt hyperplasia in the small intestine. The mechanism of the intestinal damage in coeliac disease remains unclear. Glucagon-like peptide (GLP)-2 is an enterotrophic peptide that causes crypt hyperplasia and intestinal cell proliferation. We postulate that GLP-2 may be involved in the mucosal changes found in coeliac disease.