725 research outputs found

    Online news and changing models of journalism

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    Online News and Changing Models of Journalism

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    The move to Internet news publishing is the latest in a series of technological shifts which have required journalists not merely to adapt their daily practice but which have also – at least in the view of some – recast their role in society. For over a decade, proponents of the networked society as a new way of life have argued that responsibility for news selection and production will shift from publishers, editors and reporters to individual consumers

    Representations of Nonhuman Nature by Environmental Activists: Fostering Less Anthropocentric Planning in the More-than-human City

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    This research investigated the role of environmental activists in controversial development proposals, and whether their other-than-scientific representations of species and natures can produce less-anthropocentric, more ecologically considered planning outcomes. The research illustrates the more-than-human relations within planning practice and the agency of nonhumans, in particular charismatic ‘flagship’ species. The research found increased representation of nonhumans using local knowledge can reduce the impact of human chauvinism and develop more ecologically considered more-than-human cities

    Treatment of Resistant Hypertension: An Update in Device Therapy

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    Hypertension is the most prevalent cardiac risk factor. In the United some estimates show 60% of 60-year-olds, 70% of 70-year-olds, an 80% of 80-year-olds being hypertensive. Often, blood pressure becomes resistant or refractory. Device therapy represents a new approach to treating this disease. The best studied of these nonpharmacologic approaches to resistant/refractory hypertension include renal denervation, carotid sinus stimulators, and central arteriovenous fistula placement. This chapter will focus on novel device therapy and literature review of its use in clinical trials

    Maser hunting in the galactic plane

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    The process of massive star formation greatly influences its surroundings through their outflows, vast UV output and shocks from their supernova death. They form at great distances from the Earth, enshrouded by dust and gas and have relatively short lifetimes. Astrophysical masers which form in these environments may act as locators of the star forming regions. The aim of this thesis is to study massive star formation using masers to probe these regions. The three main masers used in this thesis are the Class I and Class II methanol masers and the 6035 MHz ex-OH maser. The methanol masers are divided into two groups, Class I and Class II, based on their distance from a central source. The Class I masers are separated 1-2 pc from a central source, the central source is the star forming region. The Class II masers are associated close to a star forming source. They are often associated with a 6035 MHz ex-OH maser. The 6035 MHz ex-OH masers are less common than the 6668 MHz Class I methanol masers. They are often found at sites of the 6668 MHz Class I masers and 1665/7 MHz OH masers. This thesis presents two maser surveys, the Methanol Multibeam (MMB) survey and the Class I survey. The MMB survey is currently surveying the entire Galactic Plane for the 6668 MHz Class II methanol maser and the 6035 MHz ex-OH maser. Over 60\% of the survey in the Southern hemisphere is now complete using the Parkes telescope. Over 900 6668 MHz Class I methanol masers and 110 6035 MHz ex-OH masers have been detected, with all of these masers pinpoint the location of newly forming high mass stars. Follow up observations to determine the precise locations of the 6668 MHz methanol and 6035 MHz ex-OH masers are currently underway. The first ever unbiased Class I survey has observed 1 sq degree of the Galactic Plane for the 44 GHz Class I methanol masers using the Mopra telescope in Australia. The 44 GHz Class II methanol masers are hypothesised to be associated with the outflows of high mass stellar objects. The Class I survey has detected 25 44 GHz methanol masers, with 23 being new detections. A smaller survey for 36 GHz Class I masers was also conducted using the Mopra telescope centered on the region with the highest population of 44 GHz Class I masers.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Mutualism as Market Practice: An examination of market performativity in the context of anarchism and its implications for post-capitalist politics

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    This article interrogates the performative effects of mutualist ideas in the context of market- making. Mutualism is a variety of anarchism associated with the work of Pierre-Joseph Proudhon, who argued for the centrality of market exchanges and mutual credit as a means for emancipating workers from capitalist exploitation. The discussion is informed by an ethnographic inquiry within a Local Exchange Trading System in Spain - the Moneda Social Puma - which illustrates how actors put mutualist ideas to work. This research makes three contributions: first, it frames a view of market multiplicity and plasticity that broadens the current scope of market studies beyond a managerialist focus. Second, it reveals how actors mobilise anarchist theories to shape – rather than escape – markets. Third, this work elucidates how actors negotiate and stabilise conflicting forms of valuation as mutualist ideas are implemented. In particular, we draw attention to a set of infrastructural practices and mutual credit arrangements whereby the market is cooperatively managed as a common. We conclude by reflecting on the implications of our work for extant debates concerning post-capitalist politics, markets and anarchism

    Strategies for the replacement of chromic acid anodising for the structural bonding of aluminium alloys

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    The 40/50V Bengough-Stuart chromic acid anodise process is widely used in demanding applications as a prebond treatment. This process has a number of disadvantages and its replacement is the subject of much interest in the aerospace, automotive and defence sectors, amongst others. This paper details a number of modifications to the standard boric-sulphuric acid anodising (BSAA) process specifically to achieve satisfactory structural bond performance. These included: variations in the deoxidiser and anodising parameters, and; the use of a post anodising dip. It has been demonstrated in these studies that there are three possible methods of providing excellent durability using a variation of the standard BSAA process: the use of an electrolytic phosphoric acid deoxidiser (EPAD); a high temperature anodise at 35°C, and; the use of a post anodise phosphoric acid dip (PAD)
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