960 resultados para Search of Optimal Paths


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We are interested in how language has been used in the literature to describe and define the role and relationship of non-birth lesbian mothers to their children. Although previous researchers and clinicians have presented strong cases for a variety of descriptions, there is little agreement about what language best reflects and, indeed, legitimizes this relationship. We have previously argued that “the search for a definitive term is unlikely to bear fruit” (Brown & Perlesz, 2007), and, in this article, we revisit the variety of labels used and explore the implications of this language. Language is not only determined by social and individual understandings of mothering and parenting, but is also influenced by pathways to lesbian parenting and negotiated roles and relationships within families.  Language has the power not only to acknowledge and affirm but also to negate and render invisible the position and distinctive contribution of lesbian mothers who have not given birth to their children.

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We investigate, within a Cournot supergame, whether previous termoptimalnext term punishments may become suboptimal when economies of scale are not negligible. We show that, for sufficiently strong increasing returns to scale, the critical discount factor associated to grim trigger strategies is lower than the one associated to previous termoptimalnext term penal codes.

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What is your first reaction when you find out your next patient has a long-term tendinopathy? I suspect you want to hide or get an urgent phone call that drags you away from the practice. You know that the person will have tried multiple interventions, probably had several injections, read all the literature about treatments for tendinopathy on the internet and want an immediate and lifelong cure. You also know that your assessment will take well into your next patient’s time allotment and even then it will remain difficult to prioritise treatments and to explain the rationale behind your plan to the patient. Even as a tendon researcher and part-time clinician whose practice consists solely of tendinopathy patients, my reactions to chronic tendinopathy patients are similar.

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Short-term load forecasting is fundamental for the reliable and efficient operation of power systems. Despite its importance, accurate prediction of loads is problematic and far remote. Often uncertainties significantly degrade performance of load forecasting models. Besides, there is no index available indicating reliability of predicted values. The objective of this study is to construct prediction intervals for future loads instead of forecasting their exact values. The delta technique is applied for constructing prediction intervals for outcomes of neural network models. Some statistical measures are developed for quantitative and comprehensive evaluation of prediction intervals. According to these measures, a new cost function is designed for shortening length of prediction intervals without compromising their coverage probability. Simulated annealing is used for minimization of this cost function and adjustment of neural network parameters. Demonstrated results clearly show that the proposed methods for constructing prediction interval outperforms the traditional delta technique. Besides, it yields prediction intervals that are practically more reliable and useful than exact point predictions.

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‘The good editor,’ suggests Thomas McCormack in his Fiction Editor, the Novel and the Novelist, ‘reads, and … responds aptly’ to the writer’s work, ‘where “aptly” means “as the ideal appropriate reader would”.’ McCormack develops an argument that encompasses the dual ideas of sensibility and craft as essential characteristics of the fiction editor. But at an historical juncture that has seen increasing interest in the publication of Indigenous writing, and when Indigenous writers themselves may envisage a multiplicity of readers (writing, for instance, for family and community, and to educate a wider white audience), who is the ‘ideal appropriate reader’ for the literary works of the current generation of Australian Indigenous writers? And what should the work of this ‘good editor’ be when engaging with the text of an Indigenous writer? This paper examines such questions using the work of Margaret McDonell and Jennifer Jones, among others, to explore ways in which non-Indigenous editors may apply aspects of McCormack’s ‘apt response’ to the editing of Indigenous texts.

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Design of locally optimal fault tolerant manipulators has been recently addressed via using the constraints of the desired null space for the Jacobian matrix of the manipulators. In the present paper the Jacobian matrices for optimal fault tolerance are presented based on geometric properties of column vectors instead of the null space. They are equally fault tolerant to a single joint failure from the worst-case relative manipulability and worst-case dexterity points of view. The optimality is achieved through a symmetric distribution of points on spheres.

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Time-series discord is widely used in data mining applications to characterize anomalous subsequences in time series. Compared to some other discord search algorithms, the direct search algorithm based on the recurrence plot shows the advantage of being fast and parameter free. The direct search algorithm, however, relies on quasi-periodicity in input time series, an assumption that limits the algorithm's applicability. In this paper, we eliminate the periodicity assumption from the direct search algorithm by proposing a reference function for subsequences and a new sampling strategy based on the reference function. These measures result in a new algorithm with improved efficiency and robustness, as evidenced by our empirical evaluation.

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Objective : To compare the location and accessibility of current Australian chronic heart failure (CHF) management programs and general practice services with the probable distribution of the population with CHF. Design and setting : Data on the prevalence and distribution of the CHF population throughout Australia, and the locations of CHF management programs and general practice services from 1 January 2004 to 31 December 2005 were analysed using geographic information systems (GIS) technology. Outcome measures : Distance of populations with CHF to CHF management programs and general practice services. Results : The highest prevalence of CHF (20.3–79.8 per 1000 population) occurred in areas with high concentrations of people over 65 years of age and in areas with higher proportions of Indigenous people. Five thousand CHF patients (8%) discharged from hospital in 2004–2005 were managed in one of the 62 identified CHF management programs. There were no CHF management programs in the Northern Territory or Tasmania. Only four CHF management programs were located outside major cities, with a total case load of 80 patients (0.7%). The mean distance from any Australian population centre to the nearest CHF management program was 332 km (median, 163 km; range, 0.15–3246 km). In rural areas, where the burden of CHF management falls upon general practitioners, the mean distance to general practice services was 37 km (median, 20 km; range, 0–656 km). Conclusion : There is an inequity in the provision of CHF management programs to rural Australians.

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This is a project sponsored by the Asia Pacific Association for Gambling Studies (APAGS) and supported by funds from the MSAR’s Bureau of Gambling Inspection and Coordination (DICJ). The research team comprises as Chief Investigators: Prof. Zhidong Hao of the University of Macau; Prof. Linda Hancock of Deakin University, Australia, and Prof. William Thompson, University of Las Vegas (UNLV). The project research was conducted between the end of December 2012 and July 2013.
The starting point for the research was to select four out of the six casino companies licensed to operate in Macau that also operate transnationally, that is, either in Las Vegas or Melbourne. Hence, the Venetian, Wynn, MGM, and the Melco-Crown Entertainment are the focus of research. The main objectives of the project are to explore how responsible gambling is framed in each of the three jurisdictions (Macau, Las Vegas and Melbourne); how it is approached cross-jurisdictionally by each of the companies; and to assess current approaches within a broader comparative context against international best practice. The research explores Responsible Gambling measures taken by a range of stakeholders including the government/regulators in each of the three jurisdictions, casino managements, problem gambling counselling services, unions and community organizations. The research emphasizes what problems prevail, and the implications of this research for enhancing Responsible Gambling in Macau.

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 Louise Lightfoot, a trained architect by profession and an ardent balletomane, is best known for moving away from pure Western classical Ballet to a fusion of classical technique and romantic emotion in Australia through her First Australian Ballet group and school. During late 1920s, she was impressed by the performances of Anna Pavlova and Uday Shankar and to bring more appropriateness and authenticity to her own Indian classical dance style that she was trying to experiment with, virtually unknown and unseen in Australia till then in its original form, Lightfoot took a few weeks stopover in India. This short holiday eventually stretched to months and then eight years as she travelled to Tamil Nadu and Kerala’s Kalamandalam, where she began her study of the complex traditions of Kathakali and Bharata Natyam dance. Here she also became a Stage Manager cum Artistic and Publicity director for local troupes and artistes in residence. She was so thrilled by the whole experience of learning Kathakali – involving poetry, song, acting and dance – that soon she started appealing to the British in India to not only appreciate the Indian dance but also to Indian parents to allow their sons and daughters to dance. Lightfoot, as Dance Director of Shivaram, Janaki Devi, Priyagopal Singh and Lakshman Singh, supported by an ensemble of Australian dancers including Ruth Bergner, Moya Beaver, Leona Welch, Pat Martin and Betty Russell, successfully toured and promoted a range of Indian classical dance forms, like Kathakali, Manipuri, Bharatanatyam, throughout Australia, New Zealand, and Fiji. As an early image-maker, she also paved the way for many other noted Indian dancers and troupes. In spite of decades of hard work and dedication to Indian dancing and creating awareness about India in Australia her work and life is little known! Her journey is fascinating because of the workings of race relations not just in Australia but also India – existing prejudices against “Whites.” In this paper I try to chart out through Australian and Indian newspaper reports her search for India.

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We review recent developments in the estimation of an optimal treatment strategy or regime from longitudinal data collected in an observational study. We also propose novel methods for using the data obtained from an observational database in one health-care system to determine the optimal treatment regime for biologically similar subjects in a second health-care system when, for cultural, logistical, or financial reasons, the two health-care systems differ (and will continue to differ) in the frequency of, and reasons for, both laboratory tests and physician visits. Finally, we propose a novel method for estimating the optimal timing of expensive and/or painful diagnostic or prognostic tests. Diagnostic or prognostic tests are only useful in so far as they help a physician to determine the optimal dosing strategy, by providing information on both the current health state and the prognosis of a patient because, in contrast to drug therapies, these tests have no direct causal effect on disease progression. Our new method explicitly incorporates this no direct effect restriction.