3,430 research outputs found
The absorption of fossil-fuel CO\u3csub\u3e2\u3c/sub\u3e by the ocean
AlI 74 ppm (1 ppm = 1.77 E 14 moles CO2) of anthropogenic CO2 can be accounted for in atmosphere (45 ppm) and ocean (29 ppm) by a simple diffusive / descending-water model. 3.8 ppm remain in the mixed layer (at equilibrium), 19.1 have diffused into intermediate waters (at 1.3 cm2 / sec). and 5.7 ppm have been advected by the North Atlantic Deep, and the Antarctic Intermediate and Bottom Waters. The diffusive uptake must be driven by a realistic interrupted exponential atmospheric driving function, with 23 years of no growth between the World Wars. The 575 m surface-ocean box required by a two-box air-sea equilibrium model, is a useful parameterization of diffusion plus thermohaline circulation, with only the 75 m wind-stirred layer near equilibrium. Future atmospheric projections from such a model are at the upper limit of those from kinetic box models, reaching 600 ppm by 2030 AD for most scenarios
Do residentsā perceptions of being well-placed and objective presence of local amenities match? A case study in West Central Scotland, UK
Background:<p></p>
Recently there has been growing interest in how neighbourhood features, such as the provision of local facilities and amenities, influence residentsā health and well-being. Prior research has measured amenity provision through subjective measures (surveying residentsā perceptions) or objective (GIS mapping of distance) methods. The latter may provide a more accurate measure of physical access, but residents may not use local amenities if they do not perceive them as ālocalā. We believe both subjective and objective measures should be explored, and use West Central Scotland data to investigate correspondence between residentsā subjective assessments of how well-placed they are for everyday amenities (food stores, primary and secondary schools, libraries, pharmacies, public recreation), and objective GIS-modelled measures, and examine correspondence by various sub-groups.<p></p>
Methods:<p></p>
ArcMap was used to map the postal locations of āTransport, Health and Well-being 2010 Studyā respondents (nā=ā1760), and the six amenities, and the presence/absence of each of them within various straight-line and network buffers around respondentsā homes was recorded. SPSS was used to investigate whether objective presence of an amenity within a specified buffer was perceived by a respondent as being well-placed for that amenity. Kappa statistics were used to test agreement between measures for all respondents, and by sex, age, social class, area deprivation, car ownership, dog ownership, walking in the local area, and years lived in current home.<p></p>
Results:<p></p>
In general, there was poor agreement (Kappa <0.20) between perceptions of being well-placed for each facility and objective presence, within 800 m and 1000 m straight-line and network buffers, with the exception of pharmacies (at 1000 m straight-line) (Kappa: 0.21). Results varied between respondent sub-groups, with some showing better agreement than others. Amongst sub-groups, at 800 m straight-line buffers, the highest correspondence between subjective and objective measures was for pharmacies and primary schools, and at 1000 m, for pharmacies, primary schools and libraries. For road network buffers under 1000 m, agreement was generally poor.<p></p>
Conclusion:<p></p>
Respondents did not necessarily regard themselves as well-placed for specific amenities when these amenities were present within specified boundaries around their homes, with some exceptions; the picture is not clear-cut with varying findings between different amenities, buffers, and sub-groups
Practice and Recommendations for Universal Design for Learning in Occupational Therapy Client Education
Background: Universal Design for Learning (UDL), an educational framework that describes flexible approaches to teaching and learning, can be used to address problems related to limitations in health literacy in health care settings.
Methods: This exploratory observational study, using a web-based online survey, was undertaken to discern how occupational therapists use the principles of UDL in educating their clients and to determine if differences exist between degree type or practice settings and UDL implementation.
Results: Of the 147 respondents only 30.6% indicated prior awareness of UDL principles. The most frequently cited means of client engagement were displaying enthusiasm and emphasizing importance of content; the most frequently cited means of representation was providing verbal instructions, and the most frequent means of action and expression was observing client performance or demonstration.
Conclusions: There is a clear need to increase both academic preparation and continuing education of occupational therapists to implement evidence-based principles of UDL to address diverse client health literacy and facilitate positive health outcomes. Opportunities for increased UDL implementation are discussed, building on the commitment of current therapists to meet the needs of their clients
Murdoch and the End of Ideology
Iris Murdoch had a lifelong interest in politics and she reflected upon the nature of ideology throughout her career. What she had to say on the subject developed during her career and relates to general academic discussions on the nature of ideology. At the outset of her career she was a committed socialist. She recognised that political ideology was in retreat after the Second World War but sought to contribute to socialist ideology. Later in her career she became sceptical of radical utopian ideologies, including socialism and developed a theory of politics that prioritised safeguarding individual liberty and security. However, she imagined that political thought would continue to develop and offer new possibilities and so she did not call for the end of ideology but continued to value political ideas
Is it deforestation or desertification when we do it to the ocean?
Anecdotal evidence from 60 marine species suggests a pattern of resource exhaustion rather than sustainable use. There is a reason to believe that biomass in the Atlantic Western Boundary Current Fishery-Grand Banks, Newfoundland, North Atlantic, Norwegian Sea, Barents Sea is 3-10% of what it was when fishing was started. Selective removal of large species may have caused major nutrient distribution in both rich and poor waters
Overlap of International League of Associations for Rheumatology and Preliminary Pediatric Rheumatology International Trials Organization Classification Criteria for Nonsystemic Juvenile Idiopathic Arthritis in an Established UK Multicentre Inception Cohort
Objective. The goal was to assess the degree of overlap between existing International League of Associations for
Rheumatology (ILAR) and preliminary Paediatric Rheumatology International Trials Organisation (PRINTO) classification criteria for juvenile idiopathic arthritis (JIA).
Methods. Participants from the Childhood Arthritis Prospective Study, a multicenter UK JIA inception cohort, were
classified using the PRINTO and ILAR classification criteria into distinct categories. Systemic JIA was excluded because
several classification items were not collected in this cohort. Adaptations to PRINTO criteria were required to apply to a
UK health care setting, including limiting the number of blood biomarker tests required. The overlap between categories
under the two systems was determined, and any differences in characteristics between groups were described.
Results. A total of 1,223 children and young people with a physicianās diagnosis of JIA were included. Using PRINTO
criteria, the majority of the patients had āother JIAā (69.5%). There was a high degree of overlap (91%) between the
PRINTO enthesitis/spondylitis- and ILAR enthesitis-related JIA categories. The PRINTO rheumatoid factor (RF)āpositive
category was composed of 48% ILAR RF-positive polyarthritis and 52% undifferentiated JIA. The early-onset antinuclear
antibodiesāpositive PRINTO category was largely composed of ILAR oligoarthritis (50%), RF-negative polyarthritis (24%),
and undifferentiated JIA (23%). A few patients were unclassified under PRINTO (n = 3) and would previously have been
classified as enthesitis-related JIA (n = 1) and undifferentiated JIA (n = 2) under ILAR.
Conclusion. Under the preliminary PRINTO classification criteria for childhood arthritis, most children are not yet
classified into a named category. These data can help support further delineation of the PRINTO criteria to ensure
homogenous groups of children can be identified
Academic motherhood and fieldwork: Juggling time, emotions and competing demands
The idea and practice of going āinto the fieldā to conduct research and gather data is a deeply rooted aspect of Geography as a discipline. For global North Development Geographers, amongst others, this usually entails travelling to, and spending periods of time in, often far-flung parts of the global South. Forging a successful academic career as a Development Geographer in the UK, is therefore to some extent predicated on mobility. This paper aims to critically engage with the gendered aspects of this expected mobility, focusing on the challenges and time constraints that are apparent when conducting overseas fieldwork as a mother, unaccompanied by her children. The paper emphasises the emotion work that is entailed in balancing the competing demands of overseas fieldwork and mothering, and begins to think through the implications of these challenges in terms of the types of knowledge we produce, as well as in relation to gender equality within the academy
Integrable boundary conditions for classical sine-Gordon theory
The possible boundary conditions consistent with the integrability of the
classical sine-Gordon equation are studied. A boundary value problem on the
half-line with local boundary condition at the origin is considered.
The most general form of this boundary condition is found such that the problem
be integrable. For the resulting system an infinite number of involutive
integrals of motion exist. These integrals are calculated and one is identified
as the Hamiltonian. The results found agree with some recent work of Ghoshal
and Zamolodchikov.Comment: 10 pages, DTP/94-3
Robot rights? Towards a social-relational justification of moral consideration \ud
Should we grant rights to artificially intelligent robots? Most current and near-future robots do not meet the hard criteria set by deontological and utilitarian theory. Virtue ethics can avoid this problem with its indirect approach. However, both direct and indirect arguments for moral consideration rest on ontological features of entities, an approach which incurs several problems. In response to these difficulties, this paper taps into a different conceptual resource in order to be able to grant some degree of moral consideration to some intelligent social robots: it sketches a novel argument for moral consideration based on social relations. It is shown that to further develop this argument we need to revise our existing ontological and social-political frameworks. It is suggested that we need a social ecology, which may be developed by engaging with Western ecology and Eastern worldviews. Although this relational turn raises many difficult issues and requires more work, this paper provides a rough outline of an alternative approach to moral consideration that can assist us in shaping our relations to intelligent robots and, by extension, to all artificial and biological entities that appear to us as more than instruments for our human purpose
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