497 research outputs found

    Constraint based simulation of soft and rigid bodies

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    The vowel /əː/ ao in Gaelic dialects

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    This paper examines the development of the Old Irish diphthongs */ai/, */oi/, */ui/ in later varieties of the Gaelic languages. These are generally accepted to have merged as a single phoneme by the end of the Old Irish period (c. 900). In all modern varieties the regular reflex of this phoneme is a long monophthong, represented orthographically as <ao>. There are three main developments: (a) in southern Irish <ao> has merged with /eː/ and/or /iː/; (b) in southern Scottish and Manx varieties <ao> remains a mid-central vowel, may be fairly fronted and may perhaps have weak rounding; and there is merger between /əː/ representing <ao> and reflexes of earlier */aÉŁ/; (c) in northern Scottish and northern Irish varieties <ao> is realized as a high back unrounded vowel /ɯː/, which is contrastive with mid back unrounded /ɀː/ representing earlier */aÉŁ/ (these may merge with /iː/ and /eː/ in Ulster). Building on suggestions of earlier scholars, it is argued that it is the developments of */əː/ are explained by its anomalous position in the phonological system of earlier varieties of Gaelic, and its interactions with the palatalization contrast of the consonant system

    Aspects of the historical phonology of Manx

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    This thesis elucidates some of the hitherto poorly understood aspects of the diachronic development of Manx phonology. By tracing phonological changes from earlier varieties of Gaelic, and within the attested period of written and recorded Manx, it frames these developments within the wider contexts of Gaelic dialectology and historical linguistics. Manx provides an important source for understanding the linguistic development of the Gaelic languages. A lack of systematic treatments and reliable datasets for the language, however, has obscured this fact and led to its neglect within Gaelic studies. The thesis focuses, in particular, on the development of the language’s prosody, suprasegmental features, vowel system and sonorants, the latter having a particular bearing on vowels. Five principal methodologies are deployed to investigate these topics: ‱ Re-evaluation of existing descriptions and datasets provided by previous scholarship, especially those collected by RhĆ·s in the 1880s and 1890s, and material from the last generation of speakers presented by Broderick in his Handbook of Late Spoken Manx. ‱ Interpretation of the evidence of the two main Manx orthographies and nonstandard variations thereof. ‱ Analyses based, as far as possible, on the whole attested lexis of the language, making use of Cregeen’s and Kelly’s dictionaries. ‱ Quantitative approaches to all of these sources of data where appropriate. ‱ Instrumental phonetic analysis of recordings of the terminal speakers of Manx. Chapter one places Manx in its historical and dialectological context, reviews previous scholarship, discusses the primary sources, and introduces the interpretative difficulties of the orthographies. Chapter two examines developments in the short and long vowels, and the impact of the consonant system on vowel changes. Chapter three examines the development of the vowels ao(i) /əː/ and ua(i) /uÉ™ÌŻ/ in Manx. The written evidence, description and recorded data are complex, and some scholars have claimed that these vowels fell together with one another and with other vowels. It will be shown that these vowels in fact remained contrastive for the most part in Late Manx. Chapter four investigates developments in the sonorant consonants, especially the R, L and N phones. Changes in vowels preceding historically tense sonorants are also examined, as well as the origins and spread of the phenomenon of preocclusion. Chapter five examines suprasegmental and prosodic features including stress shift, unstressed long vowel shortening, and the conditioning factors for these. Chapter six provides concluding remarks assessing the thesis’ contribution to current scholarship, and the prospects for future research

    Comparison of the HUI3 and the EQ-5D-3L in a nursing home setting

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    Background: Accurately assessing changes in the quality of life of older people living permanently in nursing homes is important. The multi-attribute utility instrument most commonly used and recommended to assess health-related quality of life in the nursing home population is the three-level EuroQol EQ-5D-3L. To date, there have been no studies using the Health Utilities Index Mark III (HUI3). The purpose of this study was to compare the level of agreement and sensitivity to change of the EQ-5D-3L and HUI3 in a nursing home population. Methods: EQ-5D-3L and HUI3 scores were measured as part of a cluster randomised controlled trial of nurse led care coordination in a nursing home population in Perth, Western Australia at baseline and 6-month follow up. Results: Both measures were completed for 199 residents at baseline and 177 at 6-month follow-up. Mean baseline utility scores for EQ-5D-3L (0.45; 95% CI 0.41±0.49) and HUI3 (0.15; 95% CI 0.10±0.20) were significantly different (Wilcoxon signed rank test, p\u3c0.01) and agreement was poor to moderate between absolute scores from each instrument (intra-class correlation coefficient = 0.63). The EQ-5D-3L appeared more sensitive to change over the 6- month period. Conclusion: Our findings show that the EQ-5D-3L and HUI3 estimate different utility scores among nursing home residents. These differences should be taken into account, particularly when considering the implications of the cost-effectiveness of particular interventions and we conclude that the HUI3 is no better suited to measuring health-related quality of life in a nursing home population when compared to the EQ-5D-3L

    Reframing curriculum for Religious Education

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    This article arises out of work undertaken within the After Religious Education project. It synthesises the curriculum expertise of established researchers, with the expertise of current teachers of RE in England. A question drives our shared interests: how should we approach curriculum development in RE and how do we justify the approach taken? The article proceeds in three steps. First, we elaborate, contextualise, and justify this question by introducing varied approaches to the curriculum production in RE. We argue that these approaches lack a foundational influence from general didactics: an understanding of subject matter that is informed by distinctively educational theory. Addressing this omission, the second step presents an alternative approach to RE established on the ‘Bildung/didactic’ tradition, and the specific general didactic analysis of Klafki. Third, we explore this approach in relation to two teaching contexts, modelling these applications, and the principles they exemplify. We demonstrate the value of synthesising theoretical and practical expertise for RE theory and practice

    Statistical properties of SGR 1900+14 bursts

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    We study the statistics of soft gamma repeater (SGR) bursts, using a data base of 187 events detected with BATSE and 837 events detected with RXTE PCA, all from SGR 1900+14 during its 1998-1999 active phase. We find that the fluence or energy distribution of bursts is consistent with a power law of index 1.66, over 4 orders of magnitude. This scale-free distribution resembles the Gutenberg-Richter Law for earthquakes, and gives evidence for self-organized criticality in SGRs. The distribution of time intervals between successive bursts from SGR 1900+14 is consistent with a log-normal distribution. There is no correlation between burst intensity and the waiting times till the next burst, but there is some evidence for a correlation between burst intensity and the time elapsed since the previous burst. We also find a correlation between the duration and the energy of the bursts, but with significant scatter. In all these statistical properties, SGR bursts resemble earthquakes and solar flares more closely than they resemble any known accretion-powered or nuclear-powered phenomena. Thus our analysis lends support to the hypothesis that the energy source for SGR bursts is internal to the neutron star, and plausibly magnetic.Comment: 11 pages, 4 figures, accepted for publication in ApJ

    The clinical and cost burden of coronary calcification in a Medicare cohort: An economic model to address under-reporting and misclassification

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    AbstractBackgroundCoronary artery calcification (CAC) is a well-established risk factor for the occurrence of adverse ischemic events. However, the economic impact of the presence of CAC is unknown.ObjectivesThrough an economic model analysis, we sought to estimate the incremental impact of CAC on medical care costs and patient mortality for de novo percutaneous coronary intervention (PCI) patients in the 2012 cohort of the Medicare elderly (≄65) population.MethodsThis aggregate burden-of-illness study is incidence-based, focusing on cost and survival outcomes for an annual Medicare cohort based on the recently introduced ICD9 code for CAC. The cost analysis uses a one-year horizon, and the survival analysis considers lost life years and their economic value.ResultsFor calendar year 2012, an estimated 200,945 index (de novo) PCI procedures were performed in this cohort. An estimated 16,000 Medicare beneficiaries (7.9%) were projected to have had severe CAC, generating an additional cost in the first year following their PCI of 3500,onaverage,or3500, on average, or 56 million in total. In terms of mortality, the model projects that an additional 397 deaths would be attributable to severe CAC in 2012, resulting in 3770 lost life years, representing an estimated loss of about 377million,whenvaluinglostlifeyearsat377 million, when valuing lost life years at 100,000 each.ConclusionsThese model-based CAC estimates, considering both moderate and severe CAC patients, suggest an annual burden of illness approaching $1.3 billion in this PCI cohort. The potential clinical and cost consequences of CAC warrant additional clinical and economic attention not only on PCI strategies for particular patients but also on reporting and coding to achieve better evidence-based decision-making
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