139,567 research outputs found

    An exploratory study investigating factors associated with adherence to chest physiotherapy and exercise in adults with cystic fibrosis

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    Copyright @ 2009 European Cystic Fibrosis Society. This article is available through Elsevier's Open Access Archives and covered by Elsevier's user license: http://www.elsevier.com/about/open-access/open-access-policies/oa-license-policy/elsevier-user-license.This study explored the relationship between psychological and demographic variables relating to chest physiotherapy (CP) and exercise in adults with cystic fibrosis. The main results were that adherence to both treatments was low and analysis of variance indicated that severity and gender were associated with exercise adherence, importance and burden. These results suggest potential areas for interventions to improve exercise adherence

    Wetlands and coastal water quality: Should wetland size matter?

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    Generally, wetlands are thought to perform water purification functions, removing contaminants as water flows through sediment and vegetation. This paradigm was challenged when Grant et al. (2001) reported that Talbert Salt Marsh (Figure 1.) increased fecal indicator bacteria (FIB) output to coastal waters, contributing to poor coastal water quality. Like most southern California wetlands, Talbert Salt Marsh has been severely degraded. It is a small (10 ha), restored wetland, only 1/100th its original size, and located at the base of a highly urbanized watershed. Is it reasonable to expect that this or any severely altered wetland will perform the same water purification benefits as a natural wetland? To determine how a more pristine southern California coastal wetland attenuated bacterial contaminants, we investigated FIB concentrations entering and exiting Carpinteria Salt Marsh (Figure 2.), a 93 ha, moderate-sized, relatively natural wetland.(PDF contains 4 pages

    Stance-taking and public discussion in blogs.

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    Blogs, which can be written and read by anyone with a computer and an internet connection, would seem to expand the possibilities for engagement in public sphere debates. Indeed, blogs are full of the kind of vocabulary that suggests intense discussion. However, a closer look at the way this vocabulary is used in context suggests that the main concern of writers is selfpresentation, positioning themselves in a crowded forum, in what has been called stancetaking. When writers mark their stances, for instance by saying I think, they enact different ways of signalling a relation to others, marking disagreement, enacting surprise, andironicising previous contributions. All these moves are ways of presenting one’s own contribution as distinctive, showing one’s entitlement to a position. In this paper, I use concordance tools to identify strings that are very frequent in a corpus of blogs, relative to a general corpus of written texts, focus on those relatively frequent words that mark stance and analyse these markers in context. I argue that the prominence of stance-taking indicates the priority of individual positioning over collective and deliberative discussion

    End sums of irreducible open 3-manifolds

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    An end sum is a non-compact analogue of a connected sum. Suppose we are given two connected, oriented nn-manifolds M1M_1 and M2M_2. Recall that to form their connected sum one chooses an nn-ball in each MiM_i, removes its interior, and then glues together the two Sn−1S^{n-1} boundary components thus created by an orientation reversing homeomorphism. Now suppose that M1M_1 and M2M_2 are also open, i.e. non-compact with empty boundary. To form an end sum of M1M_1 and M2M_2 one chooses a halfspace HiH_i (a manifold \homeo\ to Rn−1×[0,∞){\bold R}^{n-1} \times [0, \infty)) embedded in MiM_i, removes its interior, and then glues together the two resulting Rn−1{\bold R}^{n-1} boundary components by an orientation reversing homeomorphism. In order for this space MM to be an nn-manifold one requires that each HiH_i be {\bf end-proper} in MiM_i in the sense that its intersection with each compact subset of MiM_i is compact. Note that one can regard HiH_i as a regular neighborhood of an end-proper ray (a 1-manifold \homeo\ to [0,∞)[0,\infty)) \ga_i in MiM_i

    CERN Accelerator Strategy

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    The CERN strategy for future accelerator projects is outlined and the role of the HE-LHC inside this strategy is described.Comment: 1 page, Contribution given to the EuCARD-AccNet-EuroLumi Workshop: The High-Energy Large Hadron Collider, Malta, Republic of Malta, 14 - 16 Oct 201
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