2,514 research outputs found

    A new functional for charge and mass identification in Delta E-E telescopes

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    We propose a new functional for the charge and mass identification in Delta E-E telescopes. This functional is based on Bethe's formula, allowing safe interpolation or extrapolation in regions with low statistics. When applied to telescopes involving detectors delivering a linear response, as silicon detectors or ionization chambers, a good mass and charge identification is achieved. For other detectors, as caesium-iodide used as a final member of a telescope, a good accuracy is also obtained except in the low residual energy region. A good identification is however recovered if a non-linear energy dependence of the light output is included.Comment: 16 pages, 8 figures, LaTeX2e + EPS figures reduced in size Submitted to Elsevie

    A Holy Land Guidebook: Cultivating Spiritual Disciplines For Pilgrimages

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    A small group of research participants and I assembled for this phenomenally enriching project intervention to create a proprietary branded guidebook for Miracle Loaves And Fishes World Hunger Ministry, Incorporated, and its subsidiary, Anointed Royal Tours, to be used for pilgrimages to the Holy Land. These pilgrimages will create sustainable funding for the ministry to support universal efforts to eliminate global hunger while simultaneously attempting to equip believers with a transformative and/or restorative walk in Christlikeness for the sake of creation, humanity, and eternal life in God’s Kingdom. The path of Christlikeness is to be transformed (Rom 12:2 NRSV), as evidenced by the inward and outward characteristics of the fruit of the Spirit (Gal 5:22– 23 NRSV) and by use of our spiritual gifts (1 Cor 12 NRSV) through a lifelong journey of spiritual formation. Spiritual formation journeys are deepened by cultivating spiritual discipline faith practices, guided by the power of the Holy Spirit, which connect us to God’s loving omnipotent presence, through the salvific power of Christ, anywhere we are in God’s creation—at home or away

    The Analysis of Wiremark

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    Wire Mark is the impression left on the paper web by its initial forming fabric. Wire Mark can be explained as differing levels of density in a sheet. By definition, the ideal formation is a sheet which has completely uniform density. Many changes have occurred in forming fabrics over the years to resolve this problem. The development of double and triple layer wires for a smoother surface have come about. This thesis takes these forming wires and further modifies the surfaces to reduce wire mark patterns. The action is analyzed by several common paper tests, along with the aid of the M/K formation tester and the densitometer. The results from the M/K formation test show that there is a good possibility that the modification does some reduction and that this is an area which deserves more attention

    Fan Phenomena: The Lord of the Rings, 2015

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    A Bayesian palaeoenvironmental transfer function model for acidified lakes

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    A Bayesian approach to palaeoecological environmental reconstruction deriving from the unimodal responses generally exhibited by organisms to an environmental gradient is described. The approach uses Bayesian model selection to calculate a collection of probability-weighted, species-specific response curves (SRCs) for each taxon within a training set, with an explicit treatment for zero abundances. These SRCs are used to reconstruct the environmental variable from sub-fossilised assemblages. The approach enables a substantial increase in computational efficiency (several orders of magnitude) over existing Bayesian methodologies. The model is developed from the Surface Water Acidification Programme (SWAP) training set and is demonstrated to exhibit comparable predictive power to existing Weighted Averaging and Maximum Likelihood methodologies, though with improvements in bias; the additional explanatory power of the Bayesian approach lies in an explicit calculation of uncertainty for each individual reconstruction. The model is applied to reconstruct the Holocene acidification history of the Round Loch of Glenhead, including a reconstruction of recent recovery derived from sediment trap data.The Bayesian reconstructions display similar trends to conventional (Weighted Averaging Partial Least Squares) reconstructions but provide a better reconstruction of extreme pH and are more sensitive to small changes in diatom assemblages. The validity of the posteriors as an apparently meaningful representation of assemblage-specific uncertainty and the high computational efficiency of the approach open up the possibility of highly constrained multiproxy reconstructions

    Groundwater reinjection and heat dissipation: lessons from the operation of a large groundwater cooling system in Central London

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    The performance of a large open-loop groundwater cooling scheme in a shallow alluvial aquifer at a prominent public building in Central London has been monitored closely over its first 2 years of operation. The installed system provided cooling to the site continuously for a period of 9 months between June 2012 and April 2013. During this period, c. 131300 m3 of groundwater was abstracted from a single pumping well and recharged into a single injection borehole. The amount of heat rejected in this period amounts to c. 1.37 GWh. A programme of hydraulic testing was subsequently undertaken over a 3 month period between July and October 2013 to evaluate the performance of the injection borehole. The data indicate no significant change in injection performance between commissioning trials undertaken in 2010 and the most recent period of testing, as evidenced by comparison of injection pressures for given flow rates in 2010 and 2013. Continuous temperature monitoring of the abstracted water, the discharge and a number of observation wells demonstrates the evolution of a heat plume in the aquifer in response to heat rejection and subsequent dissipation of this heat during the 18 month planned cessation

    Minicomputers: What is the choice?

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    Illustration not included in Web versio

    Interpretation of Light-Quenching Factor Measurements

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    We observe that the pattern of the quenching factors for scintillation light from various ions, recently studied in CaWO4CaWO_4 in connection with dark matter detectors, can be understood as a saturation phenomenon in which the light output is simply proportional to track length, independent of the ion and its energy. This observation is in accord with the high dE/dx limit of Birks' law. It suggests a simple model for the intrinsic resolution of light detectors for low energy ions, which we briefly discuss.Comment: Seven pages, seven figures, some with colo

    Partners At Care Transitions (PACT). Exploring older peoples’ experiences of transitioning from hospital to home in the UK: protocol for an observation and interview study of older people and their families to understand patient experience and involvement in care at transitions

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    Introduction: Lengths of hospital inpatient stays have reduced. This benefits patients, who prefer to be at home, and hospitals, which can treat more people when stays are shorter. Patients may, however, leave hospital sicker, with ongoing care needs. The transition period from hospital to home, can be risky, particularly for older patients with complex health and social needs. Improving patient experience, especially through greater patient involvement, may improve outcomes for patients and is a key indicator of care quality and safety. In this research we aim to: capture the experiences of older patients and their families during the transition from hospital to home; and identify opportunities for greater patient involvement in care, particularly where this contributes to greater individual- and organisational-level resilience. Methods and Analysis: A ‘focused ethnography’ comprising observations, ‘Go-Along’ and semi-structured interviews will be used to capture patient and carer experiences during different points in the care transition from admission to 90 days after discharge. We will recruit 30 patients and their carers from six hospital departments across two NHS Trusts. Analysis of observations and interviews will use a Framework approach to identify themes to understand the experience of transitions and generate ideas about how patients could be more actively involved in their care. This will include exploring what ‘good’ care at transitions look like and seeking out examples of success, as well as recommendations for improvement. Ethics and dissemination: Ethical approval was received from the NHS Research Ethics Committee in Wales. The research findings will add to a growing body of knowledge about patient experience of transitions, in particular providing insight into the experiences of patients and carers throughout the transitions process, in ‘real time’. Importantly, the data will be used to inform the development of a patient-centred intervention to improve the quality and safety of transitions

    Pulse Shape Analysis with scintillating bolometers

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    Among the detectors used for rare event searches, such as neutrinoless Double Beta Decay (0ν\nuDBD) and Dark Matter experiments, bolometers are very promising because of their favorable properties (excellent energy resolution, high detector efficiency, a wide choice of different materials used as absorber, ...). However, up to now, the actual interesting possibility to identify the interacting particle, and thus to greatly reduce the background, can be fulfilled only with a double read-out (i.e. the simultaneous and independent read out of heat and scintillation light or heat and ionization). This double read-out could greatly complicate the assembly of a huge, multi-detector array, such as CUORE and EURECA. The possibility to recognize the interacting particle through the shape of the thermal pulse is then clearly a very interesting opportunity. While detailed analyses of the signal time development in purely thermal detectors have not produced so far interesting results, similar analyses on macro-bolometers (∼\sim10-500 g) built with scintillating crystals showed that it is possible to distinguish between an electron or γ\gamma-ray and an α\alpha particle interaction (i.e. the main source of background for 0ν\nuDBD experiments based on the bolometric technique). Results on pulse shape analysis of a CaMoO4_4 crystal operated as bolometer is reported as an example. An explanation of this behavior, based on the energy partition in the heat and scintillation channels, is also presented.Comment: Presented at the 14th International Workshop on Low Temperature Detectors, proceedings to be published in the Journal of Low Temperature Physic
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