276 research outputs found

    Inappropriate flushing of menstrual sanitary products

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    This paper explores the disposal strategies of menstrual sanitary products through in-depth semi-structured interviews of women aged 18-30 years. There have been many educational campaigns to encourage solid stream waste disposal, however inappropriate disposal and blockages are still a major problem for the water industry. Whilst there have been quantitative studies exploring self-reporting of flushing norms, there is evidence to suggest these results may not take into account the complex set of socio-cultural factors associated with menstrual product disposal. Bridging this gap, our interviews found that although all participants had a desire to responsibly dispose, their ability to utilise solid waste streams or to minimise waste by using reusable products was not always possible because they felt, to some degree, restricted by the wider societal requirements for discretion and the design, accessibility and availability of bins and bathroom facilities. Based on these findings Industry recommendations are suggested

    Signposts or weathervanes? The curious case of corporate social responsibility and conflict minerals

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    Corporate social responsibility is often framed in terms of opposing constructions of the firm. These reflect, respectively, different accounts of its obligations: either to shareholders or to stakeholders (who include shareholders). Although these opposing constructions of corporate responsibility are diametrically opposed, they are also much more fluid and mobile in certain contexts, since they can act as discursive resources that are deployed and brought into play in the struggle over shaping what responsibility means. They are less the fixed, ideological “signposts” they might appear, and more like “weathervanes” that move alongside changing rhetorical currents. To show this, we analyse the Securities and Exchange Commission consultation process, and legislation, relating to the provenance of “conflict minerals”. We identify two dialectically opposed camps, each seeking to influence final legislation and with end goals in keeping with the shareholder/stakeholder dichotomy. One camp lobbied for firms to scrutinize their entire supply chain, constructing the firm as a “global citizen” with very wide social responsibilities. The second camp lobbied for a lighter touch approach, constructing the firm as a “trader”, with much narrower social responsibilities. We analyse the complex interplay between these two opposed camps, our contribution being to show how both deploy competing conceptions of the corporation as discursive resources

    FACT, Mega-ROSA, SOLAROSA

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    The Flexible Array Concentrator Technology (FACT) is a lightweight, high-performance reflective concentrator blanket assembly that can be used on flexible solar array blankets. The FACT concentrator replaces every other row of solar cells on a solar array blanket, significantly reducing the cost of the array. The modular design is highly scalable for the array system designer, and exhibits compact stowage, good off-pointing acceptance, and mass/cost savings. The assembly s relatively low concentration ratio, accompanied by a large radiative area, provides for a low cell operating temperature, and eliminates many of the thermal problems inherent in high-concentration-ratio designs. Unlike other reflector technologies, the FACT concentrator modules function on both z-fold and rolled flexible solar array blankets, as well as rigid array systems. Mega-ROSA (Mega Roll-Out Solar Array) is a new, highly modularized and extremely scalable version of ROSA that provides immense power level range capability from 100 kW to several MW in size. Mega-ROSA will enable extremely high-power spacecraft and SEP-powered missions, including space-tug and largescale planetary science and lunar/asteroid exploration missions. Mega-ROSA's inherent broad power scalability is achieved while retaining ROSA s solar array performance metrics and missionenabling features for lightweight, compact stowage volume and affordability. This innovation will enable future ultra-high-power missions through lowcost (25 to 50% cost savings, depending on PV and blanket technology), lightweight, high specific power (greater than 200 to 400 Watts per kilogram BOL (beginning-of-life) at the wing level depending on PV and blanket technology), compact stowage volume (greater than 50 kilowatts per cubic meter for very large arrays), high reliability, platform simplicity (low failure modes), high deployed strength/stiffness when scaled to huge sizes, and high-voltage operation capability. Mega-ROSA is adaptable to all photovoltaic and concentrator flexible blanket technologies, and can readily accommodate standard multijunction and emerging ultra-lightweight IMM (inverted metamorphic) photovoltaic flexible blanket assemblies, as well as ENTECHs Stretched Lens Array (SLA) and DSSs (Deployable Space Systems) FACT, which allows for cost reduction at the array level

    Defining the distribution of transverse mixing coefficients across a rough laboratory flood plain

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    Testing the durability of limestone for Cathedral façade restoration

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    This research aimed to specify an optimum replacement stone for Truro Cathedral. A variety of petrographically and visually similar material to the original Bath stone was initially selected. The stones were subjected to three different durability tests; Sodium sulphate crystallisation and large scale testing with both accelerated and climatic freeze-thaw cyclic loading. The most suitable stone was determined as the one with the best performance characteristics overall

    Development of the Prairie Hydrology Design and Analysis Product (PHyDAP)

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    Global Water Futures, Environment and Climate Change CanadaCurrently, there are no tools which account for the complexities of prairie hydrology and hydrography available to hydrological practitioners for calculating return-period flows and flooding at small scales on the Canadian Prairies. The need for such tools is especially great due to non-stationarity from the effects of climate change and surface drainage. The Prairie Hydrology Design and Analysis Product (PHyDAP) uses the research results of the Global Water Futures Prairie Water Project to produce a spatial dataset which will allow practitioners to determine return-period flows and flooded areas in a scientifically defensible manner, while incorporating changes in the local climate and land use

    Assessing runoff sensitivity of North American Prairie Pothole Region basins to wetland drainage using a basin classification-based virtual modelling approach

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    Canada First Research Excellence Fund (Global Water Futures/Prairie Water)Peer ReviewedWetland drainage has been pervasive in the North American Prairie Pothole Region. There is strong evidence that this drainage increases the hydrological connectivity of previously isolated wetlands and, in turn, runoff response to snowmelt and rainfall. It can be hard to disentangle the role of climate from the influence of wetland drainage in observed records. In this study, a basin-classification-based virtual modelling approach is described that can isolate these effects on runoff regimes. The basin class which was examined, entitled Pothole Till, extends throughout much of Canada’s portion of the Prairie Pothole Region. Three knowledge gaps were addressed. First, it was determined that the spatial pattern in which wetlands are drained has little influence on how much the runoff regime was altered. Second, no threshold could be identified below which wetland drainage has no effect on the runoff regime, with drainage thresholds as low as 10 % in the area being evaluated. Third, wetter regions were less sensitive to drainage as they tend to be better hydrologically connected, even in the absence of drainage. Low flows were the least affected by drainage. Conversely, during extremely wet years, runoff depths could double as the result of complete wetland removal. Simulated median annual runoff depths were the most responsive, potentially tripling under typical conditions with high degrees of wet- land drainage. As storage capacity is removed from the landscape through wetland drainage, the size of the storage deficit of median years begins to decrease and to converge on those of the extreme wet years. Model simulations of flood frequency suggest that, because of these changes in antecedent conditions, precipitation that once could generate a median event with wetland drainage can generate what would have been a maximum event without wetland drainage. The advantage of the basin-classification-based virtual modelling approach employed here is that it simulated a long period that included a wide variety of precipitation and antecedent storage conditions across a diversity of wetland complexes. This has allowed seemingly disparate results of past research to be put into context and finds that conflicting results are often only because of differences in spatial scale and temporal scope of investigation. A conceptual framework is provided that shows, in general, how annual runoff in different climatic and drainage situations will likely respond to wetland drainage in the Prairie Pothole Region

    The Impact of Adolescent Chronic Pain on Functioning: Disentangling the Complex Role of Anxiety

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    A number of adolescents with chronic pain have clinically significant disability across physical, social, and academic activities, and pain severity only explains a portion of the variance in functioning. Thus, it is important to identify therapeutic options to improve adolescents’ functioning. In contrast to studies with adults with chronic pain, research in pediatric pain has not consistently found anxiety to be a good predictor of pain-related disability. The present study evaluated pain, anxiety, and functioning in 222 adolescents with chronic pain. Results indicated that pain was consistently and linearly related to disability across measures of physical and social functioning, school attendance, and physician visits. The relation between anxiety and functioning was complex; increased anxiety was related to poorer physical and social functioning and was related to fewer physician visits, although it was not associated with school attendance. Additional analyses revealed that anxiety serves to moderate the relation between pain and functioning. Specifically, at high anxiety, pain was not related to functioning, but at low anxiety pain consistently predicted disability. In other words, highly anxious adolescents were functioning poorly regardless of the level of pain. The moderating role of anxiety highlights a number of research and clinical possibilities to explore with adolescents with chronic pain-related disability. Data suggest that high anxiety is associated with poor functioning irrespective of pain intensity. At low anxiety, higher pain predicted greater disability. Anxiety is important to assess when investigating potential reasons for pain-related disability
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