1,056 research outputs found

    Patience Versus Decisiveness in Decision-Making

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    When rationality is bounded, a variety of factors may influence how far a choice is from optimal. We examine the willingness to search among alternatives. We find fixed individual differences in this temperament measure. People may be usefully typed according to how they obtain improved choices. More patient subjects obtain improvement by effectively using decision resources, performing better when the decision is more complex. More decisive subjects obtain improvement by conserving valuable decision resources, performing better when the decision problem is simple. We find that a bonus incentive frame encourages patience, while a penalty frame encourages decisiveness. These results suggest an organization can enhance its performance by matching individual temperaments and incentive frames to decision tasks at hand.framing, deliberation cost, bounded rationality, heuristics, incentives

    Recent sacramental developments in the Kirk

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    This extended paper examines the procedure of the Church of Scotland in relation to the admission of children to the Eucharist before they make a public profession of faith. It considers the Kirk’s current legislation on paedocommunion in the context of: the Reformed doctrine of the sacraments; eighteenth-century discussion of the question; the protracted debate on the issue in recent decades; and the influence of the sacramentology of Karl Barth. It concludes by raising some important questions about the logic of the Kirk’s present practice and doctrine relating to the issue.Publisher PD

    Linear transmitter design for MSAT terminals

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    One of the factors that will undoubtedly influence the choice of modulation format for mobile satellites, is the availability of cheap, power-efficient, linear amplifiers for mobile terminal equipment operating in the 1.5-1.7 GHz band. Transmitter linearity is not easily achieved at these frequencies, although high power (20W) class A/AB devices are becoming available. However, these components are expensive and require careful design to achieve a modest degree of linearity. In this paper an alternative approach to radio frequency (RF) power amplifier design for mobile satellite (MSAT) terminals using readily-available, power-efficient, and cheap class C devices in a feedback amplifier architecture is presented

    Waging war : discourses of HIV/AIDS in South African media

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    This paper explores a discourse of war against HIV/AIDS evident in the Daily Dispatch, a South African daily newspaper, from 1985 to 2000, and discusses the implications of this in terms of the way in which HIV/AIDS is constructed. The discursive framework of the war depends, fundamentally, on the personification of HIV/AIDS, in which agency is accorded to the virus, and which allows for its construction as the enemy. The war discourse positions different groups of subjects (the diseased body, the commanders, the experts, the ordinary citizens) in relations of power. The diseased body, which is the point of transmission, the polluter or infector, is cast as the 'Other', as a dark and threatening force. This takes on racialised overtones. The government takes on the role of commander, directing the war through policy and intervention strategies. Opposition to government is couched in a struggle discourse that dove-tails with the overall framework of war. Medical and scientific understandings pre-dominate in the investigative practices and expert commentary on the war, with alternative voices (such as those of people living with HIV/AIDS) being silenced. The ordinary citizen is incited to take on prevention and caring roles with a strong gendered overlay

    Coming to grips with Eradu-patch of lupins

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    Investigations by Bill MacLoud and Mark Sweetingham have confirmed that Eradu-patch of lupins is caused by apreviously undescribed fungal pathogen,\. They have developed strategies to minimise the spread of patches but choices are limited for control in lupin crop

    Renal replacement modality and stroke risk in end-stage renal disease—a national registry study

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    Background: The risk of stroke in end-stage renal disease (ESRD) on renal replacement therapy (RRT) is up to 10-fold greater than the general population. However, whether this increased risk differs by RRT modality is unclear. Methods: We used data contained in the Scottish Renal Registry and the Scottish Stroke Care Audit to identify stroke in all adult patients who commenced RRT for ESRD from 2005 to 2013. Incidence rate was calculated and regression analyses were performed to identify variables associated with stroke. We explored the effect of RRT modality at initiation and cumulative dialysis exposure by time-dependent regression analysis, using transplant recipients as the reference group. Results: A total of 4957 patients commenced RRT for ESRD. Median age was 64.5 years, 41.5% were female and 277 patients suffered a stroke (incidence rate was 18.6/1000 patient-years). Patients who had stroke were older, had higher blood pressure and were more likely to be female and have diabetes. On multivariable regression older age, female sex, diabetes and higher serum phosphate were associated with risk of stroke. RRT modality at initiation was not. On time-dependent analysis, haemodialysis (HD) exposure was independently associated with increased risk of stroke. Conclusions: In patients with ESRD who initiate RRT, HD use independently increases risk of stroke compared with transplantation. Use of peritoneal dialysis did not increase risk on adjusted analysis

    Stroke patients admitted within normal working hours are more likely to achieve process standards and to have better outcomes

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    Acknowledgements The authors are grateful to David Murphy of the SSCA for providing data and to Lynsey Waugh of ISD Scotland for linking the SSCA data with General Register Office data. The authors also acknowledge the help of all who enter data into SSCA. Funding This study was funded by Chest, Heart and Stroke Scotland (Grant no R14/A156). The SSCA is funded by NHS Scotland via ISD.Peer reviewedPublisher PD

    Recent sacramental developments in the Kirk

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    This extended paper examines the procedure of the Church of Scotland in relation to the admission of children to the Eucharist before they make a public profession of faith. It considers the Kirk’s current legislation on paedocommunion in the context of: the Reformed doctrine of the sacraments; eighteenth-century discussion of the question; the protracted debate on the issue in recent decades; and the influence of the sacramentology of Karl Barth. It concludes by raising some important questions about the logic of the Kirk’s present practice and doctrine relating to the issue

    Glucocorticoids: Fuelling the Fire of Atherosclerosis or Therapeutic Extinguishers?

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    Glucocorticoids are steroid hormones with key roles in the regulation of many physiological systems including energy homeostasis and immunity. However, chronic glucocorticoid excess, highlighted in Cushing’s syndrome, is established as being associated with increased cardiovascular disease (CVD) risk. Atherosclerosis is the major cause of CVD, leading to complications including coronary artery disease, myocardial infarction and heart failure. While the associations between glucocorticoid excess and increased prevalence of these complications are well established, the mechanisms underlying the role of glucocorticoids in development of atheroma are unclear. This review aims to better understand the importance of glucocorticoids in atherosclerosis and to dissect their cell-specific effects on key processes (e.g., contractility, remodelling and lesion development). Clinical and pre-clinical studies have shown both athero-protective and pro-atherogenic responses to glucocorticoids, effects dependent upon their multifactorial actions. Evidence indicates regulation of glucocorticoid bioavailability at the vasculature is complex, with local delivery, pre-receptor metabolism, and receptor expression contributing to responses linked to vascular remodelling and inflammation. Further investigations are required to clarify the mechanisms through which endogenous, local glucocorticoid action and systemic glucocorticoid treatment promote/inhibit atherosclerosis. This will provide greater insights into the potential benefit of glucocorticoid targeted approaches in the treatment of cardiovascular disease
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