6,990 research outputs found

    What impact - if any - does working outdoors have on the therapeutic relationship?

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    This research investigated therapist's experiences of how working outdoors in nature impacts on the therapeutic relationship. Although outdoor therapy has emerged as a significant practice (McLeod, 2013; Mind, 2013), very little research had been done on what impact it might have on the therapeutic relationship. Given the importance of the therapeutic relationship (Norcross, 2011), this was identified as an area worth investigating

    Do News and Sentiment play a role in Stock Price Prediction?

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    The Effect of Sentiment on Stock Price Prediction

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    Weak solutions to Allen-Cahn-like equations modelling consolidation of porous media

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    We study the weak solvability of a system of coupled Allen--Cahn--like equations resembling cross--diffusion which is arising as a model for the consolidation of saturated porous media. Besides using energy like estimates, we cast the special structure of the system in the framework of the Leray--Schauder fixed point principle and ensure this way the local existence of strong solutions to a regularised version of our system. Furthermore, weak convergence techniques ensure the existence of weak solutions to the original consolidation problem. The uniqueness of global-in-time solutions is guaranteed in a particular case. Moreover, we use a finite difference scheme to show the negativity of the vector of solutions.}{Weak solutions; cross--diffusion system; energy method; Leray--Schauder fixed point theorem; finite differences; consolidation of porous medi

    Material choices for fibre in the Neolithic: an approach through the measurement of mechanical properties

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    Studies of the Mesolithic-Neolithic transition in Europe have focused on plants and animals exploited for food. However, the exploitation of plants for fibres underwent a significant change with the addition of domestic flax as a fibre crop. While the technology of flax fibre processing is increasingly understood by archaeologists, its material value as a fibre crop in comparison to indigenous fibre is less well explored. We examine the mechanical properties of flax and two indigenous fibres (lime bast, willow bast), by testing fibre strips for tensile properties and discuss the results in the light of material choices in these periods

    Low temperature specific heat and possible gap to magnetic excitations in the Heisenberg pyrochlore antiferromagnet Gd2Sn207

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    The Gd2Sn2O7 pyrochlore Heisenberg antiferromagnet displays a phase transition to a four sublattice Neel ordered state at a temperature near 1 K. Despite the seemingly conventional nature of the ordered state, the specific heat has been found to be described in the temperature range 350-800 mK by an anomalous T-squared power law. A similar temperature dependence has also been reported for Gd2Ti2O7, another pyrochlore Heisenberg material. Such anomalous T-squared behavior in Cv has been argued to be correlated to an unusual energy-dependence of the density of states which also seemingly manifests itself in low-temperature spin fluctuations found in muon spin relaxation experiments. In this paper, we report calculations of Cv that consider spin wave like excitations out of the Neel order observed in Gd2Sn2O7 and argue that the parametric T-squared behavior does not reflect the true low-energy excitations of Gd2Sn2O7. Rather, we find that the low-energy excitations of this material are antiferromagnetic magnons gapped by single-ion and dipolar anisotropy effects, and that the lowest temperature of 350 mK considered in previous specific heat measurements accidentally happens to coincide with a crossover temperature below which magnons become thermally activated and Cv takes an exponential form. We argue that further specific heat measurements that extend down to at least 100 mK are required in order to ascribe an unconventional description of magnetic excitations out of the ground state of Gd2Sn2O7 or to invalidate the standard picture of gapped excitations proposed herein.Comment: 12 pages, 13 figures; shortened introduction and added 1 figur

    Biliary peritonitis caused by a leaking T-tube fistula disconnected at the point of contact with the anterior abdominal wall: a case report.

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    INTRODUCTION: Operations on the common bile duct may lead to potentially serious complications such as biliary peritonitis. T-tube insertion is performed to reduce the risk of this occurring postoperatively. Biliary leakage at the point of insertion into the common bile duct, or along the fistula, can sometimes occur after T-tube removal and this has been reported extensively in the literature. We report a case where the site at which the T-tube fistula leaked proved to be the point of contact between the fistula and the anterior abdominal wall, a previously unreported complication. CASE PRESENTATION: A 36-year-old sub-Saharan African woman presented with gallstone-induced pancreatitis and, once her symptoms settled, laparoscopic cholecystectomy was performed, common bile duct stones were removed and a T-tube was inserted. Three weeks later, T-tube removal led to biliary peritonitis due to the disconnection of the T-tube fistula which was recannulated laparoscopically using a Latex drain. CONCLUSION: This case highlights a previously unreported mechanism for bile leak following T-tube removal caused by detachment of a fistula tract at its contact point with the anterior abdominal wall. Hepatobiliary surgeons should be aware of this mechanism of biliary leakage and the use of laparoscopy to recannulate the fistula.RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are

    Facilitating player control in gambling

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    Research indicates that gamblers frequently set self-imposed limits on how much time and money they wish to gamble in a given gambling session, yet consistently gamble more than initially intended. The emotional and arousing impact of gambling, as well as dissociative states gamblers experience whilst gambling, may contribute to this behavioural shift which reflects a failure in self-control. Essential then, is the need for harm minimisation strategies aimed at allowing a gambler to stay in control of their decisions and behaviour during gambling, whilst concurrently limiting the negative impact this may have on the gambling experience for those who frequently stay in control. The following article evaluates the use of limit setting and pre-commitment, the use of ‘cooling off’ periods, and restricting access to additional funds as harm minimisation strategies, in terms of their efficacy in facilitating self-control in problem and non-problem gambling populations. As with any potential mass intervention, such as the use of mandatory limit setting, the need for robust empirical evidence to prove its efficacy is essential. Existing research, while providing promise, falls short of this criterion, indicating a requirement for more stringent empirical research to best guide responsible gambling practices aimed at facilitating player control during gambling
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