5,856 research outputs found

    E-Learning for Teachers and Trainers : Innovative Practices, Skills and Competences

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    Reproduction is authorised provided the source is acknowledged.Final Published versio

    The confederation riots: a mirror of postemancipation Barbados

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    This thesis explores the British and the Barbadian perspectives on the Confederation Riots that occurred in April 1876 in Barbados. It looks at how the conflict emerged and in what context, on the imperial as well as on the local level. Confederation in the British Empire in the nineteenth century is scrutinised to understand the imperial policy beyond the Caribbean, and reports from the Colonial Office and newspapers from the period are used to see how the colony of Barbados was seen from afar. As the British government tried to establish a Crown colony in Barbados by joining the island in a confederation with the Windward Islands, the white Barbadian elite’s response to this scheme is discussed as well as that of the African-Barbadian labourers’. Their different reactions to debates about Confederation led to violence in the form of the riots in April 1876. This thesis thus combines an understanding of the colony from both the oppressed and the persecutors' points of view, which the current historiography on the event has failed to do. It examines how the population was divided over the conflict with approaches to race as well as to class, and it evaluates who was involved in the riots. It analyses these debates in the Barbadian society prior to the riots and looks at what role Governor John Pope Hennessy had as a mediator between the population and the Colonial Office in London. However, the postemancipation society was already split between planters and former slaves, thus this thesis aims to analyse how the conflict was both a postemancipation struggle and a constitutional crisis. For the scholarship on the Confederation Riots does not look at the other islands concerned by the confederation scheme, this thesis also analyses reactions to and impacts of the riots and the confederation in the other colonies of the Windward Islands

    Invoice from L. Coulon & Co. to Ogden Goelet

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    https://digitalcommons.salve.edu/goelet-personal-expenses/1081/thumbnail.jp

    Quantum nucleation in a single-chain magnet

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    The field sweep rate (v=dH/dt) and temperature (T) dependence of the magnetization reversal of a single-chain magnet (SCM) is studied at low temperatures. As expected for a thermally activated process, the nucleation field (H_n) increases with decreasing T and increasing v. The set of H_n(T,v) data is analyzed with a model of thermally activated nucleation of magnetization reversal. Below 1 K, H_n becomes temperature independent but remains strongly sweep rate dependent. In this temperature range, the reversal of the magnetization is induced by a quantum nucleation of a domain wall that then propagates due to the applied field.Comment: 5 pages, 4 figure

    The sources, impact and management of car park runoff pollution: a review

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    Traffic emissions contribute significantly to the build-up of diffuse pollution loads on urban surfaces with their subsequent mobilisation and direct discharge posing problems for receiving water quality. This review focuses on the impact and mitigation of solids, metals, nutrients and organic pollutants in the runoff deriving from car parks. Variabilities in the discharged pollutant levels and in the potentials for pollutant mitigation complicate an impact assessment of car park runoff. The different available stormwater best management practices and proprietary devices are reported to be capable of reductions of between 20% and almost 100% for both suspended solids and a range of metals. This review contributes to prioritising the treatment options which can achieve the appropriate pollutant reductions whilst conforming to the site requirements of a typical car park. By applying different treatment scenarios to the runoff from a hypothetical car park, it is shown that optimal performance, in terms of ecological benefits for the receiving water, can be achieved using a treatment train incorporating permeable paving and bioretention systems. The review identifies existing research gaps and emphasises the pertinent management practices as well as design issues which are relevant to the mitigation of car park pollution

    A stochastic movement simulator improves estimates of landscape connectivity

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    Acknowledgments This publication issued from the project TenLamas funded by the French MinistĂšre de l'Energie, de l'Ecologie, du DĂ©veloppement Durable et de la Mer through the EU FP6 BiodivERsA Eranet; by the Agence Nationale de la Recherche (ANR) through the open call INDHET and 6th extinction MOBIGEN to V. M. Stevens, M. Baguette, and A. Coulon, and young researcher GEMS (ANR-13-JSV7-0010-01) to V. M. Stevens and M. Baguette; and by a VLIR-VLADOC scholarship awarded to J. Aben. L. Lens, J. Aben, D. Strubbe, and E. Matthysen are grateful to the Research Foundation Flanders (FWO) for financial support of fieldwork and genetic analysis (grant G.0308.13). V. M. Stevens and M. Baguette are members of the “Laboratoire d'Excellence” (LABEX) entitled TULIP (ANR-10-LABX-41). J. M. J. Travis and S. C. F. Palmer also acknowledge the support of NERC. A. Coulon and J. Aben contributed equally to the work.Peer reviewedPublisher PD

    Microwave dielectric study of spin-Peierls and charge ordering transitions in (TMTTF)2_2PF6_6 salts

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    We report a study of the 16.5 GHz dielectric function of hydrogenated and deuterated organic salts (TMTTF)2_2PF6_6. The temperature behavior of the dielectric function is consistent with short-range polar order whose relaxation time decreases rapidly below the charge ordering temperature. If this transition has more a relaxor character in the hydrogenated salt, charge ordering is strengthened in the deuterated one where the transition temperature has increased by more than thirty percent. Anomalies in the dielectric function are also observed in the spin-Peierls ground state revealing some intricate lattice effects in a temperature range where both phases coexist. The variation of the spin-Peierls ordering temperature under magnetic field appears to follow a mean-field prediction despite the presence of spin-Peierls fluctuations over a very wide temperature range in the charge ordered state of these salts.Comment: 7 pages, 6 figure

    Empirical research on youth transitions to and within the labour market

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    The research project aimed to provide research outcomes on the magnitude of youth transitions, the main drivers and barriers of youth transitions and potential long-term outcomes (‘scarring’) on people’s subsequent employment trajectories. This report summarises the evidence obtained by making use of a range of individual-level data sets and methods, in particular: ‱ An analysis of Labour Force Survey (LFS) data creating pseudo-cohorts to examine long-term education and labour market trends affecting 16-to-24 year olds from 39 different birth cohorts and subsequent employment trajectories. ‱ An analysis of the ‘Ad Hoc module’ of 2009 from the European Labour Force Survey (EU:LFS) on ‘Youth Transitions’ on individual long-term outcomes of particular youth labour market transitions. ‱ An analysis of various cohort studies (National Child Development Study [NCDS], British Cohort Study [BCS], Youth Cohort Study [YCS], Longitudinal Study of Young People in England [LSYPE]) comparing the episodes young people experience when making transitions into the labour market in youth and early adulthood. This study uses sequential analysis for individual monthly panel data to describe biographies of young people until the age of 25 (based on BCS and NCDS) and until the age of 19 (for YCS and LSYPE). ‱ An analysis of the transition from secondary schooling to further destinations using a recent cohort of School Leavers National Pupil Data (NPD) merged to records of National Client Casework Information System (NCCIS) on young people’s activities after the end of compulsory education including econometric models on drivers and barriers of particular transitions

    An ensemble-based approach for pumping optimization in an island aquifer considering parameter, observation and climate uncertainty

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    In coastal zones, a major objective of groundwater management is often to determine sustainable pumping rates which avoid well salinization. Understanding how model and climate uncertainties affect optimal management solutions is essential for providing groundwater managers with information about salinization risk and is facilitated by the use of optimization under uncertainty (OUU) methods. However, guidelines are missing for the widespread implementation of OUU in real-world coastal aquifers and for the incorporation of climate uncertainty into OUU approaches. An ensemble-based OUU approach was developed considering parameter, observation and climate uncertainty and was implemented in a real-world island aquifer in the Magdalen Islands (Quebec, Canada). A sharp-interface seawater intrusion model was developed using MODFLOW-SWI2 and a prior parameter ensemble was generated containing multiple equally plausible realizations. Ensemble-based history matching was conducted using an iterative ensemble smoother which yielded a posterior parameter ensemble conveying both parameter and observation uncertainty. Sea level and recharge ensembles were generated for the year 2050 and were then used to generate a predictive parameter ensemble conveying parameter, observation and climate uncertainty. Multi-objective OUU was then conducted, aiming to both maximize pumping rates and minimize the probability of well salinization. As a result, the optimal trade-off between pumping and the probability of salinization was quantified considering parameter, historical observation and future climate uncertainty simultaneously. The multi-objective, ensemble-based OUU led to optimal pumping rates that were very different from a previous deterministic OUU and close to the current and projected water demand for risk-averse stances. Incorporating climate uncertainty into the OUU was also critical since it reduced the maximum allowable pumping rates for users with a risk-averse stance. The workflow used tools adapted to very high-dimensional, nonlinear models and optimization problems to facilitate its implementation in a wide range of real-world settings.</p
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