20 research outputs found

    Measurement of charged particle multiplicities in pppp collisions at s=7{\sqrt{s} =7}TeV in the forward region

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    The charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of s=7{\sqrt{s} =7}TeV in different intervals of pseudorapidity η\eta. The charged particles are reconstructed close to the interaction region in the vertex detector, which provides high reconstruction efficiency in the η\eta ranges 2.5<η<2.0-2.5<\eta<-2.0 and 2.0<η<4.52.0<\eta<4.5. The data were taken with a minimum bias trigger, only requiring one or more reconstructed tracks in the vertex detector. By selecting an event sample with at least one track with a transverse momentum greater than 1 GeV/c a hard QCD subsample is investigated. Several event generators are compared with the data; none are able to describe fully the multiplicity distributions or the charged particle density distribution as a function of η\eta. In general, the models underestimate the charged particle production

    BWS object case application : attitudes towards end-of-life care

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    This chapter uses Case 1 – the object case – to elicit the views of older Australians towards different, and potentially competing, end-of-life care strategies. In addition to the empirical aims of the original article, this chapter aims to illustrate to those working in health how Case 1 BWS techniques used previously in personality assessment can be used to elicit attitudes towards health care.The proportion of the Australian population aged 65 and over grew from 8.5 percent in 1961 to 13.3 percent in 2009. This proportion is predicted to rise to 21.3 percent in 2031, which has implications for health and social care service provision, particularly if there are continuing reductions in the proportion of an Australian’s life that is spent contributing to the system in tax. This aging issue is common to most of the developed world. Costly, and burdensome, interventions to preserve life are increasingly used. While advances in medical care mean that such highly interventionist strategies return some patients to a health state approximating that experienced before the deterioration, in many cases these treatments serve only to prolong the dying process or return the patient to a highly impaired state in which activities of daily living cannot be performed. Many individuals do not want this expensive and potentially intrusive care (SUPPORT investigators, 1995). Doctors and family members generally choose interventionist treatment for patients who cannot make their own choice, unless patients make their wishes clear in advance. However, the process of thought leading to the creation of an advance care plan is difficult for most patients (Baker et al., 2013), and only a minority complete plans at present, so clinicians often have little information about an individual patient's treatment preferences. Advance care planning (ACP) is typically conducted in an interview that is necessarily long and complex, because of the need to consider various medical interventions that might be applied singly, or in combination, in different circumstances. Outcomes can vary, in terms of chance of survival, treatment burden and quality of life. Therefore, traditional ACP interviews have typically been qualitative in nature (Singer, Martin and Kelner, 1999), making them impossible to scale up to the population level. However, ACP has to be scaled up to this level, not least because end-of-life care is both emotive and resource-intensive to society

    Physicochemical properties of sweetpotato starch

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    Sweetpotato starch is high-yielding, but has limited development and uses. In this study, physicochemical properties of sweetpotato starch from 11 representative genotypes with diverse geographic origins in China were characterized and showed wide variations. Apparent amylose contents measured by iodine binding ranged from 23.3 to 26.5%, by gel permeation chromatography after debranching from 17.5 to 23.9%, and true amylose content by concanavalin A binding from 15.9 to 22.5%. In vitro digestibility varied from 29.5 to 41.2%. Swelling power and water solubility index were highly correlated (r 2 = 0.88). Gelatinization peak temperature and enthalpy ranged from 75.4 to 79.7°C, and 7.6 to 13.6 J/g, respectively. Pasting peak and cold paste viscosities varied from 268 to 469 RVU, and 170 to 284 RVU. Amylose contents were highly correlated to digestibility, pasting, and thermal parameters. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.link_to_subscribed_fulltex
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