Collimated proton acceleration in light sail regime with a tailored pinhole target

A scheme for producing collimated protons from laser interactions with a diamond-like-carbon+pinhole target is proposed. The process is based on radiation pressure acceleration in the multi-species light-sail regime [B. Qiao et al., Phys. Rev. Lett. 105, 155002 (2010); T. P. Yu et al., Phys. Rev. Lett. 105, 065002 (2010)]. Particle-in-cell simulations demonstrate that transverse quasistatic electric field at TV/m level can be generated in the pinhole. The transverse electric field suppresses the transverse expansion of protons effectively, resulting in a higher density and more collimated proton beam compared with a single foil target. The dependence of the proton beam divergence on the parameters of the pinhole is also investigated. 

Long-Term Imprisonment in Northern Ireland:Psychological or Political Survival?

The chapter reviews the literature on the affects of long-term imprisonment with a focus on concepts of psychological survival, learned helplessness and institutionalization. It then discusses trends in imprisonment in Northern Ireland and the exceptionally high proportion of prisoners serving life sentences. Through interviews with prisoners and their relatives, a critique of the literature is made in terms of the failure to take account of cases of collective prisoner organization and strong political motivation.

Economic Ideas and the Political Construction of the Financial Crash of 2008

This article is a short introduction to a special section on economic ideas and the political construction of the financial crash. It begins by explaining why economic ideas and the politics of appeals to certain ideas are so integral to the historical significance of the crash of 2008 and the question of whether it can be considered a crash at all. The first section covers the literature on ideas and economic crisis. The second section highlights that the contribution of the special section is to engage in a stock taking exercise of the empirical and conceptual patterns concerning the politics of ideational change underway in the areas of: comparative fiscal policy; monetary policy and Euro zone debt management; capital controls; and financial and securities market regulation and standard setting. The final section outlines the structure of this special section and content of the individual articles.

Raymond Geuss’ radicalization of realism in political theory

Raymond Geuss has been viewed as one of the figureheads of the recent debates about realism in political theory. This interpretation, however, depends on a truncated understanding of his work of the past 30 years. I will offer the first sustained engagement with this work (in English and German) which allows understanding his realism as a project for reorienting political theory, particularly the relationship between political theory and politics. I interpret this reorientation as a radicalization of realismin political theory through the combination of the emphasis on the critical purpose of political theory and the provision of practical, contextual orientation. Their compatibility depends on Geuss’ understanding of criticism as negative, of power as ‘detoxified’ and of the critical purchase of political theory as based on the diagnostic engagement with its context. This radicalization particularly challenges the understanding of how political theory relates to its political context.

Emotions & social change in Ireland:Exploring habitus shift in liquid modernity

Drawing on insights from a range of disciplines, including philosophy, psychology, history, politics, but particularly sociology and sociological theory, this thesis explores the relationship between emotions and social change in late or 'liquid' modernity. It deploys the Republic of Ireland in the twentieth century as a case study. It argues that the Irish case in an ideal site for this research given the speed and scale of changes that have occurred there, particularly since the 1950's. The primary research question guiding the study is: What has been the effect of 'social change' in Ireland on the emotional lives of Irish people? The thesis is structured in three parts. Part one (chapters one to three) is primarily theoretical. It aims to develop a distinctive theoretical framework, process-relational realism, and argues that three concepts, properly treated, are central to answering the research question. These are emotion, power and (emotional) habitus. Part two is a bridging chapter, in which the empirical portion of the study, its design and method, are outlined. This study is based on a series of qualitative life-history interviews conducted using the Biographical Narrative Research Method. Part three is primarily empirical. The first chapter critically explores Bauman's concept of liquid modernity in relation to the Irish case and offers a short social history of the Irish twentieth century, which focuses on emotions and power. The second deploys two (ideal-type) interview cases to support the argument that Ireland experienced a habitus shift, from a relatively homogeneous to a heterogeneous habitus, and a corresponding shift from a relatively repressive emotional regime to a more expressive one, with significant effects on the emotional habitus. The final chapter takes a broader view of these changes, suggests that social change has been ambivalent, and outlines a new typology of emotional pathologies that the study suggests are characteristic of contemporary emotional life.

Exposure to Political Violence in Northern Ireland and Outcome of First Episode Psychosis

The impact of political violence on individuals presenting with an episode of first episode psychosis has not been examined. Individuals were assessed for exposure to political violence in Northern Ireland (the “Troubles”) by asking for a response to 2 questions: one asked about the impact of violence “on your area”; the second about the impact of violence “on you or your family’s life.” The participants were separated into 2 groups (high and low impact) for each question. Symptom profiles and rates of substance misuse were compared across the groups at baseline and at 3-year follow up. Of the 178 individuals included in the study 66 (37.1%) reported a high impact of the “Troubles” on their life and 81 (45.5%) a high impact of the “Troubles” on their area. There were no significant differences in symptom profile or rates of substance misuse between high and low groups at presentation. At 3-year follow-up high impact of the “Troubles” on life was associated with higher Positive and Negative Symptom Scale (PANSS) Total (P = .01), PANSS-Positive (P < .05), and PANSS-General (P < .01) scores and lower global assessment of functioning disability (P < .05) scores, after adjusting for confounding factors. Impact of the “Troubles” on area was not associated with differences in symptom outcomes. This finding adds to the evidence that outcomes in psychosis are significantly impacted by environmental factors and suggests that greater attention should be paid to therapeutic strategies designed to address the impact of trauma.