1,252 research outputs found

    Secondary education and the working class:: Wigan 1920-1970.

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    This study traces the development of educational provision for working class people in Wigan from 1920 until 1970. The main investigative tool of the study is oral evidence, gathered from interviewing a wide cross-section of people who attended different schools, triangulated against primary archive sources. The main theme of the study is that there was a clearly identified 'dual' and 'differentiated’ system of secondary provision for children in the town. For a small minority of pupils education was delivered in the selective grammar schools, who had access to a superior curriculum with clearly defined outcomes and qualifications. This was undertaken m establishments that were well equipped, and was delivered by teaching staff, who were all university graduates. And contrasts strongly with the lower status non-selective schools, which the majority of working class pupils attended, where the curriculum and ethos were constantly changed and experimented with, to address a growing concern regarding the attainment and progress of the pupils who attended these schools. The establishments that the non-selected pupils attended were poorly equipped, and pupils were taught by non-graduate teachers. The study will also highlight how this 'differentiated' and 'dual system' was maintained by the highly contentious 1l+selection process, reinforced through the social and financial restraints on working class families which pertained whenever the opportunity arose for their children to attend a selective school. In addition, the study reveals how pupils' experience of discipline was influenced by their gender and the status of the school they attended. The witness testimony and primary archive material reveal how the emergence of the welfare state, alongside the increased prosperity and affluence of working people after 1945, contrasted sharply with the abject poverty and hardships that working people experienced during the inter-war years. Nevertheless, despite the post war gains of the Welfare State, the secondary education system remained a mechanism of social differentiation and control. The consequences of this were made a profound impact on the experience, identity and life chances of working class people

    Sulfate Reduction in Sediments Produces High Levels of Chromophoric Dissolved Organic Matter

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    Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been previously investigated in detail. Freshwater sediment slurries were incubated anaerobically with added sulfate and acetate to promote sulfate-reducing bacteria. Ultraviolet visible (UV-Vis) absorbance and 3-dimensional excitation emission matrix (EEM) fluorescence spectra were measured over a five weeks anaerobic dark incubation period. Parallel Factor Analysis (PARAFAC) of FDOM determined components that increased significantly during dark and anaerobic incubation matching three components previously considered of terrestrially-derived or humic-like origin published in the OpenFluor database. The observed FDOM increase was strongly correlated (R2 = 0.96) with the reduction of sulfate. These results show a direct experimental link between sulfate reduction and FDOM production, which impacts our understanding of coastal FDOM sources and early sediment diagenesis. As 3D fluorescence techniques are commonly applied to diverse systems, these results provide increasing support that FDOM can have many diverse sources not consistently captured by common classifications such as “humic-like” fluorescence

    Using virtual ethnography to research vulnerable participants online: A case study of mental health online community support forums

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    Researching vulnerable groups has long been a subject of academic work and has been subject to rigorous ethical approvals for conducting face-to-face interviews. With new technologies come new challenges. Groups of people come together on online forums and have anonymous discussions about anything and everything; this often includes the source of their vulnerabilities. In the discussed research, the focus of these community support forums is mental health. It is difficult to shift the focus of researching vulnerable adults away from face-toface to online, particularly as there are no physical cues to give meaning to the language used. The value therefore must be contained in the written word, and there are “unique characteristics” in the data due to this. There is something quite refreshing about focusing on the text rather than body language, and there are many suggestions on how to conduct this type of research. My research focuses on using virtual ethnography of online focus groups, which has been fraught with issues, but has proved a useful learning experience

    Diffusion Time-Scale Invariance, Markovization Processes and Memory Effects in Lennard-Jones Liquids

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    We report the results of calculation of diffusion coefficients for Lennard-Jones liquids, based on the idea of time-scale invariance of relaxation processes in liquids. The results were compared with the molecular dynamics data for Lennard-Jones system and a good agreement of our theory with these data over a wide range of densities and temperatures was obtained. By calculations of the non-Markovity parameter we have estimated numerically statistical memory effects of diffusion in detail.Comment: 10 pages, 3 figure

    Caring for Carers

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    Does the party in power affect FDI? First causal evidence from narrow margin US state elections

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    This is the author accepted manuscript. The final version is available from SAGE Publications via the DOI in this recordDoes the party of government influence the amount and type of inward foreign investment? Correlational studies provide inconsistent evidence. Moreover no existing study, for any level of government or any jurisdiction, uses methods that allow for causal inference. We apply regression discontinuity methods to a set of narrow margin US gubernatorial elections. Over the course of a 4-year term the election of a Republican governor causes a 17% boost in the growth of manufacturing-oriented FDI stock, compared to a Democrat. However, the same approach provides no evidence that partisanship matters for the overall level of FDI

    The SAI Journal Project Overview

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    Continuum-particle hybrid coupling for mass, momentum and energy transfers in unsteady fluid flow

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    The aim of hybrid methods in simulations is to communicate regions with disparate time and length scales. Here, a fluid described at the atomistic level within an inner region P is coupled to an outer region C described by continuum fluid dynamics. The matching of both descriptions of matter is made across an overlapping region and, in general, consists of a two-way coupling scheme (C->P and P->C) which conveys mass, momentum and energy fluxes. The contribution of the hybrid scheme hereby presented is two-fold: first it treats unsteady flows and, more importantly, it handles energy exchange between both C and P regions. The implementation of the C->P coupling is tested here using steady and unsteady flows with different rates of mass, momentum and energy exchange. In particular, relaxing flows described by linear hydrodynamics (transversal and longitudinal waves) are most enlightening as they comprise the whole set of hydrodynamic modes. Applying the hybrid coupling scheme after the onset of an initial perturbation, the cell-averaged Fourier components of the flow variables in the P region (velocity, density, internal energy, temperature and pressure) evolve in excellent agreement with the hydrodynamic trends. It is also shown that the scheme preserves the correct rate of entropy production. We discuss some general requirements on the coarse-grained length and time scales arising from both the characteristic microscopic and hydrodynamic scales.Comment: LaTex, 12 pages, 9 figure

    Global anthropogenic emissions of particulate matter including black carbon

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    This paper presents a comprehensive assessment of historical (1990–2010) global anthropogenic particulate matter (PM) emissions including the consistent and harmonized calculation of mass-based size distribution (PM1, PM2. 5, PM10), as well as primary carbonaceous aerosols including black carbon (BC) and organic carbon (OC). The estimates were developed with the integrated assessment model GAINS, where source- and region-specific technology characteristics are explicitly included. This assessment includes a number of previously unaccounted or often misallocated emission sources, i.e. kerosene lamps, gas flaring, diesel generators, refuse burning; some of them were reported in the past for selected regions or in the context of a particular pollutant or sector but not included as part of a total estimate. Spatially, emissions were calculated for 172 source regions (as well as international shipping), presented for 25 global regions, and allocated to 0.5°  ×  0.5° longitude–latitude grids. No independent estimates of emissions from forest fires and savannah burning are provided and neither windblown dust nor unpaved roads emissions are included. We estimate that global emissions of PM have not changed significantly between 1990 and 2010, showing a strong decoupling from the global increase in energy consumption and, consequently, CO2 emissions, but there are significantly different regional trends, with a particularly strong increase in East Asia and Africa and a strong decline in Europe, North America, and the Pacific region. This in turn resulted in important changes in the spatial pattern of PM burden, e.g. European, North American, and Pacific contributions to global emissions dropped from nearly 30 % in 1990 to well below 15 % in 2010, while Asia's contribution grew from just over 50 % to nearly two-thirds of the global total in 2010. For all PM species considered, Asian sources represented over 60 % of the global anthropogenic total, and residential combustion was the most important sector, contributing about 60 % for BC and OC, 45 % for PM2. 5, and less than 40 % for PM10, where large combustion sources and industrial processes are equally important. Global anthropogenic emissions of BC were estimated at about 6.6 and 7.2 Tg in 2000 and 2010, respectively, and represent about 15 % of PM2. 5 but for some sources reach nearly 50 %, i.e. for the transport sector. Our global BC numbers are higher than previously published owing primarily to the inclusion of new sources. This PM estimate fills the gap in emission data and emission source characterization required in air quality and climate modelling studies and health impact assessments at a regional and global level, as it includes both carbonaceous and non-carbonaceous constituents of primary particulate matter emissions. The developed emission dataset has been used in several regional and global atmospheric transport and climate model simulations within the ECLIPSE (Evaluating the Climate and Air Quality Impacts of Short-Lived Pollutants) project and beyond, serves better parameterization of the global integrated assessment models with respect to representation of black carbon and organic carbon emissions, and built a basis for recently published global particulate number estimates
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