6,622 research outputs found
Spectra of Random Hermitian Matrices with a Small-Rank External Source: The Critical and Near-Critical Regimes
No full textRandom Hermitian matrices are used to model complex systems without time-reversal invariance. Adding an external source to the model can have the effect of shifting some of the matrix eigenvalues, which corresponds to shifting some of the energy levels of the physical system. We consider the case when the n×n external source matrix has two distinct real eigenvalues: a with multiplicity r and zero with multiplicity n−r. For a Gaussian potential, it was shown by Péché (Probab. Theory Relat. Fields 134:127–173, 2006) that when r is fixed or grows sufficiently slowly with n (a small-rank source), r eigenvalues are expected to exit the main bulk for |a| large enough. Furthermore, at the critical value of a when the outliers are at the edge of a band, the eigenvalues at the edge are described by the r-Airy kernel. We establish the universality of the r-Airy kernel for a general class of analytic potentials for r=O(nγ) for 0≤γ<1/12
Is war a man-made public health problem?
No full textRazum O, Barros H, Buckingham R, et al. Is war a man-made public health problem? Lancet (London, England). 2019;394(10209):1613
Anti-inflammatory role of the murine formyl-peptide receptor 2: ligand-specific effects on leukocyte responses and experimental inflammation.Dufton N, Hannon R, Brancaleone V, Dalli J, Patel HB, Gray M, D'Acquisto F, Buckingham JC, Perretti M, Flower RJ.
No full textGendered geographies of environmental injustice
No full textThis is the accepted version of the following article: Buckingham, S. and Kulcur, R. (2009), Gendered Geographies of Environmental Injustice. Antipode, 41: 659–683. doi: 10.1111/j.1467-8330.2009.00693.x, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8330.2009.00693.x/abstract. Copyright @ 2009 The Authors.As environmental justice concerns become more widely embedded in environmental organizations and policy making, and increasingly the focus of academic study, the gender dimension dissolves into an exclusive focus on race/ethnicity and class/income. While grass roots campaigning activities were often dominated by women, in the more institutionalized activities of organizations dominated by salaried professionals, gender inequality is neglected as a vector of environmental injustice, and addressing this inequality is not considered a strategy for redress. This paper explores some of the reasons why this may be so, which include a lack of visibility of gendered environmental injustice; professional campaigning organizations which are themselves gender blind; institutions at a range of scales which are still structured by gender (as well as class and race) inequalities; and an intellectual academy which continues to marginalize the study of gender – and women’s – inequality. The authors draw on experience of environmental activism, participant observation, and other qualitative research into the gendering of environmental activity, to first explore the constructions of scale to see how this might limit a gender-fair approach to environmental justice. Following this, the practice of ‘gender mainstreaming’ in environmental organizations and institutions will be examined, demonstrating how this is limited in scope and fails to impact on the gendering of environmental injustice
Pax-3 gene and limb bud development: a new experimental model in studing migration and cellular differentiation.
No full textEFFECT OF MEAL COMPOSITION ON GLUCOSE RATE OF CHANGE IN PATIENTS WITH TYPE 1 DIABETES USING A CLOSED-LOOP SYSTEM
No full textH. M. la reina y H. R. M. la princesa Mary, "H. M. The Queen & H. R. H. Princess Mary"
No full textI. O. Anverso: "H. M. THE QUEEN & H. R. H. PRINCESS MARY. PHOTOGRAPHED AT BUCKINGHAM PALACE. PHOTO CENTRAL NEWS. 107 J. BEAGLES POSTCARDS". Reverso: "J. BEAGLES & CO. LTD., E. C., PRINTERS & PUBLISHERS GUARANTEED REAL PHOTOGRAPH. POST TRADE MARK CARD. BEST IN THE WORLD FOR CORRESPONDENCE FOR ADDRESS ONLY". Sello: "PRINTED IN ENGLAND BY BEAGLES & CO. LTD., LONDON E. C". Sello: "BRAGLES POST CARDS". Nota: Reina Mary (1867-1953) y su hija María, la Princesa Real, más tarde Condesa de Harewood (1897-1965)
Moments of inclusion and exclusion: pupils negotiating classroom contexts
No full textThis paper uses evidence form a small-scale study of two English primary classrooms to examine school inclusion in its political contexts. We argue that 'inclusion' and 'exclusion' are complex process, enacted moment-by-moment by pupils and teachers. Our focus is on the pupils' negotiation of these moments, and we examine how their negotiations are contingent on (although not determined by) a web of intersecting indices of 'difference', including differences of social class, ethnicity, gender/sexuality, perceived academic ability and physical appearance. We take a post-structuralist approach, well-known in feminist educational research but less often used in research and thinking about 'inclusive' schooling, to foreground children's active role in making sense of social conditions that are not of their own making or choice. We conclude that a politically literature understanding of the processes of inclusion and exclusion is necessary both to hight the continuing reproduction of educational inequality, and to produce the necessary conditions for egalitarian change
Implosion in the Challenger Deep: echo sounding with the shock wave
No full text© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Loranger, S., Barclay, D., & Buckingham, M. Implosion in the Challenger Deep: echo sounding with the shock wave. Oceanography, 34(2), (2021), https://doi.org/10.5670/oceanog.2021.201.Since HMS Challenger made the first sounding in the Mariana Trench in 1875, scientists and explorers have been seeking to establish the exact location and depth of the deepest part of the ocean. The scientific consensus is that the deepest depth is situated in the Challenger Deep, an abyss in the Mariana Trench with depths greater than 10,000 m. Since1952, when HMS Challenger II, following its namesake, returned to the Mariana Trench, 20 estimates (including the one from this study) of the depth of the Challenger Deep have been made. The location and depth estimates are as diverse as the methods used to obtain them; they range from early measurements with explosives and stopwatches, to single- and multibeam sonars, to submersibles, both crewed and remotely operated. In December 2014, we participated in an expedition to the Challenger Deep onboard Schmidt Ocean Institute’s R/V Falkor and deployed two free-falling, passive-acoustic instrument platforms, each with a glass-sphere pressure housing containing system electronics. At a nominal depth of 9,000 m, one of these housings imploded, creating a highly energetic shock wave that, as recorded by the other instrument, reflected multiple times from the sea surface and seafloor. From the arrival times of these multi-path pulses at the surviving instrument, in conjunction with a concurrent measurement of the sound speed profile in the water column, we obtained a highly constrained acoustic estimate of the Challenger Deep: 10,983 ± 6 m.This work was funded by the Schmidt Ocean Institute, the Ocean Frontiers Institute, and the Office of Naval Research, Ocean Acoustics, Code 322OA, grant number N00014-18-1-2126
Accommodating change? An investigation of the impacts of government contracting processes on third sector providers of homelessness services in South East England
No full textThis study investigates the impacts of government contracting on third sector providers of services for single homeless people in Southampton and Hampshire, in South East England. It focuses particularly on tendering and quality measurement. 24 interviews were conducted with representatives of 21 third sector organisations (TSOs) and a further two with local government representatives. Quantitative data were used to describe the characteristics of the TSOs. Different TSOs experienced and responded to government contracting in different ways, and a typology was therefore developed which categorised the organisations into one of four types: Comfortable Contractors; Compliant Contractors; Cautious Contractors; and Community-based Non-contractors.Tendering and quality measurement consumed significant amounts of time and required TSOs to access legal and tender-writing expertise. This was more problematic for the smaller Cautious Contractors, whereas larger TSOs with multiple contracts could meet the requirements more cost-efficiently. The quality measurement processes introduced as part of the Supporting People programme were deemed to have considerably improved standards. However, there were concerns that the emphasis on achieving measurable outcomes and moving clients on within a specified time could lead to the neglect of less tangible aspects such as improved self-esteem, and did not take sufficient account of longer term outcomes for clients.The impacts of contracting were ambiguous and varied amongst the different types of providers. However, the commissioning processes seemed to favour larger, more professionalised TSOs, which exhibited fewer of the distinctive characteristics upon which New Labour’s support for third sector involvement in service provision was premised. This points to the need for a more carefully differentiated policy discourse which acknowledges the third sector’s diversity and is more transparent about which types of TSO the government is seeking to engage with for which purposes
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