168 research outputs found
The Impact of Olfactory Disorders in the United Kingdom
Olfactory disorders are believed to affect 5% of the general population and have been shown to bear significant psychosocial consequences to sufferers. Although more common than blindness and profound deafness in the United Kingdom, the impact of these disorders has not been assessed to date and the plight of British patients has yet to be quantified. In 2012, a patient support organization, Fifth Sense, was founded to provide information and support to sufferers of chemosensory disorders. Following a recent members conference, a survey of the membership was conducted anonymously using a series of questions based on an existing olfactory disorders questionnaire. From 496 respondents, this has demonstrated high rates of depression (43%) and anxiety (45%), impairment of eating experience (92%), isolation (57%), and relationship difficulties (54%). Women appear to have significantly more issues than men in terms of social and domestic dysfunction relating to olfactory loss (P = 0.01). Qualitative disorders also affected more than 1 in 5 members with parosmia reported in 19% and phantosmia in 24%. This paper discusses the details of the British story of anosmia and other related disorders as depicted by those most affected
Cerebral blood flow predicts differential neurotransmitter activity
Application of metabolic magnetic resonance imaging measures such as cerebral blood flow in translational medicine is limited by the unknown link of observed alterations to specific neurophysiological processes. In particular, the sensitivity of cerebral blood flow to activity changes in specific neurotransmitter systems remains unclear. We address this question by probing cerebral blood flow in healthy volunteers using seven established drugs with known dopaminergic, serotonergic, glutamatergic and GABAergic mechanisms of action. We use a novel framework aimed at disentangling the observed effects to contribution from underlying neurotransmitter systems. We find for all evaluated compounds a reliable spatial link of respective cerebral blood flow changes with underlying neurotransmitter receptor densities corresponding to their primary mechanisms of action. The strength of these associations with receptor density is mediated by respective drug affinities. These findings suggest that cerebral blood flow is a sensitive brain-wide in-vivo assay of metabolic demands across a variety of neurotransmitter systems in humans
Procuring a sustainable future: an action learning approach to the development and modelling of ethical and sustainable procurement practices
© 2016 Informa UK Limited, trading as Taylor & Francis GroupThis paper contributes to an understanding of the processes by which organisational actors learn how to affect positive and sustainable social change in their local region through action learning, action research and appreciative inquiry. The paper is based on a critically reflective account of key findings from an ongoing action research project, funded by the Joseph Rowntree Foundation. The project is an attempt to alleviate poverty in the Leeds City Region through the identification and spread of âgood practiceâ in large local organisations. The paper is based on insights into the tensions involved in accomplishing such modes of action research and action learning in this particular context, and how these findings can relate to similar research in other domains of inquiry, action and cross-organisational learning. Through this, the paper discusses the inherent challenges faced when attempting to use action research and action learning approaches to help large organisations to learn and develop as ethical and sustainable agents
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The second iteration of the Systems Prioritization Method: A systems prioritization and decision-aiding tool for the Waste Isolation Pilot Plant: Volume 1, Synopsis of method and results
In March 1994, the US Department of Energy Carlsbad Area Office (DOE/CAO) embarked on an effort to design and implement a performance- based decision-aiding tool to provide an analytical basis for planning, prioritizing, and selecting programmatic options for the Waste Isolation Pilot Plant (WIPP). This tool, called Systems Prioritization Method (SPM) defines the most viable combinations of scientific investigations, engineered alternatives (EAs), and waste acceptance criteria (WAC) for supporting the final WIPP compliance application. The scope of SPM is restricted to selected portions of applicable Environmental Protection Agency (EPA) long-term performance regulations. SPM calculates the probabilities of certain sets of activities demonstrating compliance with various regulations. SPM provides results in the form of a decision matrix to identify cost-effective programmatic paths with a high probability of successfully demonstrating compliance
Establishing UK research priorities in smell and taste disorders: A James Lind Alliance Priority Setting Partnership
Objectives: To determine the top 10 research priorities in Smell and Taste Disorders (SATD). Design: After steering group was established, an electronic survey was disseminated to determine the list of questions. After removing out-of-scope responses, the remainder were consolidated to create summary questions. A literature search was conducted to remove already answered questions. A second survey was used to determine the top questions that formed the subject of final debate at a workshop attended by clinicians and patients to determine the top 10 priorities. Setting: A James Lind Alliance Priority Setting Partnership (JLAPSP) was established by FifthSense to identify the top 10 research questions in SATDs in the United Kingdom. Participant: All stakeholders in SATDs (patients, healthcare professionals, family, carers, researchers). Main outcome measures: Final 10 research priorities. Results: The 665 respondents to the initial survey provided 1698 research questions. Thirteen were out-of-scope and removed; remaining 1685 were then consolidated to form 147 summary questions. Following literature search and discussion with the steering group, 37 questions remained for the second survey, which 235 people responded. The top ten priorities agreed upon in the workshop covered themes of improved understanding of pathophysiologlogy, improving health services, and managing long-term effects of smell/taste disorders. The most important research question agreed was âHow can we further our understanding of the mechanism of disease in the nerve pathways that affect smell and taste disorders, including where parosmia and phantosmia exist.â. Conclusion: We report the top 10 research priorities in smell and taste disorders. These priorities will now empower researchers to secure research funding and provide the basis of the FifthSense research hub
The GOGREEN survey: Post-infall environmental quenching fails to predict the observed age difference between quiescent field and cluster galaxies at z>1
We study the star formation histories (SFHs) and mass-weighted ages of 331 UVJ-selected quiescent galaxies in 11 galaxy clusters and in the field at 11 has been driven by different physical processes than those at play at z=0
Morphological cells in the Ragusa littoral (Sicily, Italy)
Geomorphologic information, topographic maps
(dated 1967), aerial photographs (dated 1999 and 2008), and
spatial analysis procedures were used to investigate a 90 km
long coastal sector in South Sicily (Italy). Information was
obtained on coastal erosion/accretion areas, general sediment
circulation pattern and littoral cell distribution. Human-made
structures and natural headlands constituted important artificial
limits dividing littoral in morphological cells. Ports and
harbours were observed at Scoglitti, Punta Secca, Marina di
Ragusa, Donnalucata and Pozzallo. Most of them worked as
âtransitâ limits which interrupted predominant, eastward directed
sedimentary transport, this way generating accretion in
updrift (west) side of mentioned structures and erosion in
downdrift (east) side. During the 1967â2008 period, about
62,000 m2 and 42,000 m2 of beach surface were respectively
formed updrift of Scoglitti and Donnalucata ports. The construction
of Pozzallo port gave rise to the formation of a
âconvergentâ limit which favoured large accretion
(94,000 m2) east of port structure. Most important natural
structures were observed at Punta Zafaglione, P. Braccetto
and Cava dâAliga. The knowledge of littoral cell distribution
acquires a great importance for appropriate management of
coastal erosion processes which may be mitigated installing
by-passing systems in ports and harbours and carrying out
nourishment works in eroding areas, often located downdrift
of ports and harbours (when these structures work as transit
limits) and in central part of littoral cells (when these structures
work as convergent limits)
Error determination in the photogrammetric assessment of shoreline changes
The evaluation of error or uncertainty in shoreline change studies is an issue of
prime importance for providing an adequate framework for calculated rates of change and to allow the establishment of threshold values above which the rates would be significant. In this note, a practical, easy-to-use method is presented to estimate error involved in the calculation of shoreline changes on aerial photographs, including the three most used types of shoreline indicators: high water line, dune/cliff toe and cliff top. This approach takes into account the specific characteristics of each shoreline proxy, such as relief in the case of
the cliff top or tidal oscillations in the case of the high water line. At the same time it includes the error components that are independent from the proxy, basically related to the technical aspects of the process such as photo scanning and georeferencing. A practical example of application of the method is provided for several types of data inputs, based on shoreline changes around the Bay of CĂĄdiz (SW Spain)
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