The position of Echegaray in Spanish drama

Thesis (M.A.)--Boston Universit

The eta invariant on two-step nilmanifolds

The eta invariant appears regularly in index theorems but is known to be directly computable from the spectrum only in certain examples of locally symmetric spaces of compact type. In this work, we derive some general formulas useful for calculating the eta invariant on closed manifolds. Specifically, we study the eta invariant on nilmanifolds by decomposing the spin Dirac operator using Kirillov theory. In particular, for general Heisenberg three-manifolds, the spectrum of the Dirac operator and the eta invariant are computed in terms of the metric, lattice, and spin structure data. There are continuous families of geometrically, spectrally different Heisenberg three-manifolds whose Dirac operators have constant eta invariant. In the appendix, some needed results of L. Richardson and C. C. Moore are extended from spaces of functions to spaces of spinors.Comment: 53 pages, corrected final version, to appear in Communications in Analysis and Geometr

Building the Big Society

Papers are a contribution to the debate and set out the authors ’ views only Localism and the Big Societ

Towards the ‘Big Society’: What role for neighbourhood working? Evidence from a comparative European study

Under the New Labour government, the neighbourhood emerged prominently as a site for policy interventions and as a space for civic activity, resulting in the widespread establishment of neighbourhood-level structures for decision-making and service delivery. The future existence and utility of these arrangements is now unclear under the Coalition government's Big Society proposals and fiscal austerity measures. On the one hand, sub-local governance structures might be seen as promoting central-to-local and local-to-community devolution of decision-making. On the other, they might be seen as layers of expensive bureaucracy standing in the way of bottom-up community action. Arguably the current value and future role of these structures in facilitating the Big Society will depend on how they are constituted and with what purpose. There are many local variations. In this paper we look at three case studies, in England, France and the Netherlands, to learn how different approaches to neighbourhood working have facilitated and constrained civic participation and action. Drawing on the work of Lowndes and Sullivan (2008) we show how the achievement of civic objectives can be hampered in structures set up primarily to achieve social, economic and political goals, partly because of (remediable) flaws in civic engagement but partly because of the inherent tensions between these objectives in relation to issues of spatial scale and the constitution and function of neighbourhood structures. The purpose of neighbourhood structures needs to be clearly thought through. We also note a distinction between 'invited' and 'popular' spaces for citizen involvement, the latter being created by citizens themselves. 'Invited' spaces have tended to dominate to date, and the Coalition's agenda suggests a fundamental shift to 'popular' spaces. However we conclude that the Big Society will require neighbourhood working to be both invited and popular. Citizen participation cannot always replace local government - sometimes it requires its support and stimulation. The challenge for local authorities is to reconstitute 'invited' spaces (not to abolish them) and at the same time to facilitate 'popular' spaces for neighbourhood working.Big Society, local government, neighbourhood, neighbourhood management, community

Structure and age-dependent development of the turkey liver: a comparative study of a highly selected meat-type and a wild-type turkey line

In this study the macroscopic and microscopic structure of the liver of a fast growing, meat-type turkey line (British United turkeys BUT Big 6, n = 25) and a wild-type turkey line (Wild Canadian turkey, n = 48) were compared at the age of 4, 8, 12, 16, and 20 wk. Because the growth plates of long bones were still detectable in the 20-week-old wild-type turkeys, indicating immaturity, a group of 8 wild-type turkeys at the age of 24 wk was included in the original scope of the study. Over the term of the study, the body and liver weights of birds from the meat-type turkey line increased at a faster rate than those of the wild-type turkey line. However, the relative liver weight of the meat-type turkeys declined (from 2.7 to 0.9%) to a greater extent than that of the wild-type turkeys (from 2.8 to 1.9%), suggesting a mismatch in development between muscle weights and liver weights of the meat-type turkeys. Signs of high levels of fat storage in the liver were detected in both lines but were greater in the wild-type turkey line, suggesting a better feed conversion by the extreme-genotype birds i.e., meat-type birds. For the first time, this study presents morphologic data on the structure and arrangement of the lymphatic tissue within the healthy turkey liver, describing two different types of lymphatic aggregations within the liver parenchyma, i.e., aggregations with and without fibrous capsules. Despite differences during development, both adult meat-type and adult wild-type turkeys had similar numbers of lymphatic aggregations

End-user involvement in a systematic review of quantitative and qualitative research of non-pharmacological interventions for attention deficit hyperactivity disorder delivered in school settings: reflections on the impacts and challenges.

JOURNAL ARTICLEBACKGROUND: The benefits of end-user involvement in health-care research are widely recognized by research agencies. There are few published evaluations of end-user involvement in systematic reviews. OBJECTIVES: (i) Describe end-user involvement in a complex mixed-methods systematic review of ADHD in schools, (ii) reflect on the impact of end-user involvement, (iii) highlight challenges and benefits experienced and (iv) provide suggestions to inform future involvement. METHODS: End-users were involved in all stages of the project, both as authors and as members of an advisory group. In addition, several events were held with groups of relevant end-users during the project. RESULTS: End-user input (i) guided the direction of the research, (ii) contributed to a typology of interventions and outcomes, (iii) contributed to the direction of data analysis and (iv) contributed to the robustness of the syntheses by demonstrating the alignment of interim findings with lived experiences. Challenges included (i) managing expectations, (ii) managing the intensity of emotion, (iii) ensuring that involvement was fruitful for all not just the researcher, (iv) our capacity to communicate and manage the process and (v) engendering a sense of involvement amongst end-users. CONCLUSIONS: End-user involvement was an important aspect of this project. To minimize challenges in future projects, a recognition by the project management team and the funding provider that end-user involvement even in evidence synthesis projects is resource intensive is essential to allow appropriate allocation of time and resources for meaningful engagement.NIHR HTA programmeNIHRExeter NHS Foundation Trus

Non-pharmacological interventions for ADHD in school settings: an overarching synthesis of systematic reviews

OBJECTIVE: This overarching synthesis brings together the findings of four systematic reviews including 138 studies focused on non-pharmacological interventions for ADHD used in school settings. These reviews considered the effectiveness of school-based interventions for ADHD, attitudes toward and experience of school-based interventions for ADHD, and the experience of ADHD in school settings. METHOD: We developed novel methods to compare the findings across these reviews inductively and deductively. RESULTS: Key contextual issues that may influence the effectiveness and implementation of interventions include the relationships that pupils with ADHD have with their teachers and peers, the attributions individuals make about the etiology of ADHD, and stigma related to ADHD or intervention attendance. CONCLUSION: Although we found some positive effects for some outcomes and intervention categories, heterogeneity in effect size estimates and research evidence suggests a range of diverse contextual factors potentially moderate the implementation and effectiveness of school-based interventions for ADHD.National Institute for Health Research Health Technology Assessment (NIHR HTA) programNIHR Collaboration for Leadership in Applied HealthResearch and Care South West Peninsula (PenCLAHRC