Home About us Contact
|
Home About us Contact | ||
|
|
||
Wider Significance (wider + significance)
Selected AbstractsShort QT Interval Linked to Androgen Misuse: Wider Significance and Possible BasisANNALS OF NONINVASIVE ELECTROCARDIOLOGY, Issue 3 2009Jules C. Hancox Ph.D. No abstract is available for this article. [source] Thesis as Narrative or ,What Is the Inquiry in Narrative Inquiry?'CURRICULUM INQUIRY, Issue 2 2000Carola Conle I present elements of inquiry in a dissertation composed through experiential narrative. My account of the thesis process is interwoven with references to John Dewey's demonstrations of implicit inquiry in the creation and experience of art. Motivation, methodology, outcomes and literature review take on a narrative character and I show how aesthetic and reflective activities contributed to the inquiry. Conceptually, a ,tension-telos dynamic' characterizes the impetus for the work; ,resonance' is portrayed as the connecting principle among various narrative components of the thesis, and the function of a ,third term' in metaphorical relationships is presented as a structuring principle for these connections. Although my inquiry came about through personal stories, my narratives reached out to social, historical and philosophical contexts to gain a wider significance, academically and personally. [source] Wildlife and Politics: CAMPFIRE in ZimbabweDEVELOPMENT AND CHANGE, Issue 3 2000Jocelyn Alexander CAMPFIRE programmes have been hailed internationally for the innovative ways in which they have sought to confront the challenges of some of Africa's most marginal regions through the promotion of local control over wildlife management. In Zimbabwe, CAMPFIRE has been cast as an antidote to the colonial legacy of technocratic and authoritarian development which had undermined people's control over their environment and criminalized their use of game. This article explores why such a potentially positive programme went so badly wrong in the case of Nkayi and Lupane districts, raising points of wider significance for comparable initiatives. Local histories and institutional politics need careful examination. The first part of the article thus investigates the historical forces which shaped attitudes to game, while the second part considers the powerful institutional and economic forces which conspired to sideline these historically formed local views. CAMPFIRE in Nkayi and Lupane was further shaped by the legacies of post-independence state violence in this region, and the failure of earlier wildlife projects. This range of factors combined to create deep distrust of CAMPFIRE, and quickly led to open confrontation. [source] Composite suspended sediment particles and flocculation in glacial meltwaters: preliminary evidence from Alpine and Himalayan basinsHYDROLOGICAL PROCESSES, Issue 9 2002J. C. Woodward Abstract Research over the last decade has shown that the suspended sediment loads of many rivers are dominated by composite particles. These particles are also known as aggregates or flocs, and are commonly made up of constituent mineral particles, which evidence a wide range of grain sizes, and organic matter. The resulting in situ or effective particle size characteristics of fluvial suspended sediment exert a major control on all processes of entrainment, transport and deposition. The significance of composite suspended sediment particles in glacial meltwater streams has, however, not been established. Existing data on the particle size characteristics of suspended sediment in glacial meltwaters relate to the dispersed mineral fraction (absolute particle size), which, for certain size fractions, may bear little relationship to the effective or in situ distribution. Existing understanding of composite particle formation within freshwater environments would suggest that in-stream flocculation processes do not take place in glacial meltwater systems because of the absence of organic binding agents. However, we report preliminary scanning electron microscopy data for one Alpine and two Himalayan glaciers that show composite particles are present in the suspended sediment load of the meltwater system. The genesis and structure of these composite particles and their constituent grain size characteristics are discussed. We present evidence for the existence of both aggregates, or composite particles whose features are largely inherited from source materials, and flocs, which represent composite particles produced by in-stream flocculation processes. In the absence of organic materials, the latter may result solely from electrochemical flocculation in the meltwater sediment system. This type of floc formation has not been reported previously in the freshwater fluvial environment. Further work is needed to test the wider significance of these data and to investigate the effective particle size characteristics of suspended sediment associated with high concentration outburst events. Such events make a major contribution to suspended sediment fluxes in meltwater streams and may provide conditions that are conducive to composite particle formation by flocculation. Copyright © 2002 John Wiley & Sons, Ltd. [source] Calman,Hine reassessed: a survey of cancer network development in England, 1999,2000JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 3 2002Beth Kewell BA PhD Abstract Rationale, aims and objectives,The paper assesses preliminary national data on the development of cancer care networks in England. Methods,In January 2000, a national postal survey was sent to lead clinicians at 36 cancer centres and associate centres. Respondents were asked to provide basic numerical data on the design of the network (i.e. its configuration), detailing how many units it encompassed, and whether the centre was a multiple or a single entity. Results,The survey highlighted national variations in the size and configuration of networks. The survey also highlighted tentative signs of shifts in clinical practice. The results showed that consultants at cancer centres and units were engaging in two forms of collaboration across centre,unit boundaries. Type 1 involved routine multidisciplinary team (MDT) outreach from centres to units, incorporating joint planning between clinicians at cancer centres and cancer units. Type 2 collaboration involved joint planning but also promoted joint centre and unit training and continuing professional development (CPD) programmes. Conclusions,In our estimation, both forms of collaboration represented early evidence of qualitative changes in medical working practices. Organizational changes within cancer services have moved swiftly since initial soundings were taken in 2000 and we update our initial commentary in the light of recent empirical data. The findings may be of wider significance to managers and health practitioners who are working towards the implementation of delivery network elsewhere in the UK National Health Service. [source] 3D models of radiatively driven colliding winds in massive O + O star binaries , III.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Issue 4 2010Thermal X-ray emission ABSTRACT The X-ray emission from the wind,wind collision in short-period massive O + O star binaries is investigated. The emission is calculated from 3D hydrodynamical models which incorporate gravity, the driving of the winds, orbital motion of the stars and radiative cooling of the shocked plasma. Changes in the amount of stellar occultation and circumstellar attenuation introduce phase-dependent X-ray variability in systems with circular orbits, while strong variations in the intrinsic emission also occur in systems with eccentric orbits. The X-ray emission in eccentric systems can display strong hysteresis, with the emission softer after periastron than at corresponding orbital phases prior to periastron, reflecting the physical state of the shocked plasma at these times. Our simulated X-ray light curves bear many similarities to observed light curves. In systems with circular orbits the light curves show two minima per orbit, which are identical (although not symmetric) if the winds are identical. The maxima in the light curves are produced near quadrature, with a phase delay introduced due to the aberration and curvature of the wind collision region. Circular systems with unequal winds produce minima of different depths and duration. In systems with eccentric orbits the maxima in the light curves may show a very sharp peak (depending on the orientation of the observer), followed by a precipitous drop due to absorption and/or cooling. We show that the rise to maximum does not necessarily follow a 1/dsep law. Our models further demonstrate that the effective circumstellar column can be highly energy dependent. Therefore, spectral fits which assume energy-independent column(s) are overly simplified and may compromise the interpretation of observed data. To better understand observational analyses of such systems we apply Chandra and Suzaku response files, plus Poisson noise, to the spectra calculated from our simulations and fit these using standard xspec models. We find that the recovered temperatures from two- or three-temperature mekal fits are comparable to those from fits to the emission from real systems with similar stellar and orbital parameters/nature. We also find that when the global abundance is thawed in the spectral fits, subsolar values are exclusively returned, despite the calculations using solar values as input. This highlights the problem of fitting oversimplified models to data, and of course is of wider significance than just the work presented here. Further insight into the nature of the stellar winds and the wind,wind collision region in particular systems will require dedicated hydrodynamical modelling, the results of which will follow in due course. [source] BRONZE AGE BARROWS ON THE HEATHLANDS OF SOUTHERN ENGLAND: CONSTRUCTION, FORMS AND INTERPRETATIONSOXFORD JOURNAL OF ARCHAEOLOGY, Issue 1 2010RICHARD BRADLEY Summary The Bronze Age barrows on the downs of southern England have been investigated and discussed for nearly 200 years, but much less attention has been paid to similar structures in the areas of heathland beyond the chalk and river gravels. They were built in a phase of expansion towards the end of the Early Bronze Age, and more were constructed during the Middle Bronze Age. They have a number of distinctive characteristics. This paper considers the interpretation of these monuments and their wider significance in relation to the pattern of settlement. It also discusses the origins of field systems in lowland England. [source] | |||||||||||||