The organizational ecology of ethnic cleavages: The nonlinear effects of ethnic diversity on party system fragmentation

The conventional wisdom regarding party system fragmentation assumes that the effects of electoral systems and social cleavages are linear. However, recent work applying organizational ecology theories to the study of party systems has challenged the degree to which electoral system effects are linear. This paper applies such concepts to the study of social cleavages. Drawing from theories of organizational ecology and the experience of many ethnically diverse African party systems, I argue that the effects of ethnic diversity are nonlinear, with party system fragmentation increasing until reaching moderate levels of diversity before declining as diversity reaches extreme values. Examining this argument cross-nationally, the results show that accounting for nonlinearity in ethnic diversity effects significantly improves model fit.

Presentation of a plasmablastic lymphoma in a human immunodeficiency virus-positive patient after administration of an inferior alveolar dental block

Human immunodeficiency virus (HIV) is a serious worldwide healthcare problem with implications for all healthcare workers. The reported oral manifestations of the disease are numerous and have been categorised according to the strength of their association with HIV infection. Oral non-Hodgkin's lymphoma is strongly associated with HIV infection, and an increased incidence of such neoplasms is widely reported. This case report details the presentation of a rare subcategory of plasmablastic lymphoma in an HIV-positive patient after administration of an inferior alveolar dental block to facilitate extraction of mandibular teeth. This highly aggressive neoplasm is a large B-cell lymphoma with a predilection for the oral cavity. Unfortunately, the prognosis for such a tumour is poor as detailed in this case.

Gender Equality under the Charter of Fundamental Rights - a new lease for positive action?

This paper, which was published as a chapter of a Festskrift for Professor Ruth Nielsen, analyses Article 23 CFREU, the new provision on gender equality. It argues that Article 23 adds to the notion of gender equality in EU law, and not only allows, but also demands positive action measures if necessary to ensure equality between women and men. The provision also demands that positive action measures are suitable to achieve their aim. This implies that the EU legislator has to adapt positive action measure to the specific needs of the sector. The paper offers a critique of the proposal to introduce women quotas in board rooms, as proposed by the EU Commission in late 2012. It argues that the Commission unimaginatively copied rules developed for the German public service into a different sector, although these rules have not proven particularly efficient even in the public service. Consequently, a proposal that is demanding, but adapted to the sector should be developed.

Collaborative Scholarship on the Margins: An Epistolary Network

This article explores collaborative scholarship on the margins of intellectual life in eighteenth-century England via a close examination of George Ballard's collected correspondence from women letter-writers. Ballard was both a man of trade and an antiquary, and his modest social status inhibited his freedom to move in scholarly circles. Ballard's only published book documented the lives and works of "learned ladies" of Britain from the fifteenth to the eighteenth centuries, and his female correspondents included the Anglo-Saxon scholar Elizabeth Elstob. His collected correspondence provides an insight into a network that operated outside of the major institutions of scholarship and far from the coffee houses of metropolitan life, but which supported its participants in their intellectual endeavours. By examining the collection materially, and by plotting the correspondents geographically, a more precise picture can be drawn of how women and lower-status men could engage in intellectual life from the peripheries of scholarly society. 

L’action positive est-elle efficace? Une évaluation empirique du programme pour l’équité dans l’emploi en Irlande du Nord

A description, and analysis, of an empirical investigation of the effectiveness of affirmative action in the Northern Ireland employment