295 research outputs found
Assessing the performance of protective winter covers for outdoor marble statuary: pilot investigation
Outdoor statuary in gardens and parks in temperate climates has a tradition of being covered during the winter, to protect against external conditions. There has been little scientific study of the environmental protection that different types of covers provide. This paper examines environmental conditions provided by a range of covers used to protect marble statuary at three sites in the UK. The protection required depends upon the condition of the marble. Although statues closely wrapped and with a layer of insulation provide good protection, this needs to be considered against the potential physical damage of close wrapping a fragile deteriorated surface
Identifying promising approaches and initiatives to reducing alcohol related harm
This study aimed to identify promising approaches that could be included in multi-component programmes (MCPs) to reduce alcohol related harm at local level in the UK. MCPs involve the identification of alcohol related problems at the local level and implementation of a programme of co-ordinated projects to tackle a problem. They are based on an integrative design where singular interventions run in combination with each other and/or are sequenced together over time; the identification, coordination and mobilisation of local agencies, stakeholders and community are key elements (Thom and Bayley, 2007). This study was underpinned by the recognition that the voices of practitioners are often marginalised in the debates about âwhat worksâ and it set out to include their views. So whilst acknowledging the importance of the international research literature, care was taken not to privilege it over other âsofterâ sources e.g. knowledge and experience of practitioners
Using a non-invasive assessment of lung injury in a murine model of acute lung injury
Arterial oxygen saturation has not been assessed sequentially in conscious mice as a direct consequence of an in vivo murine model of acute lung injury. Here, we report daily changes in arterial oxygen saturation and other cardiopulmonary parameters by using infrared pulse oximetry following intratracheal lipopolysaccharide (IT-LPS) for up to 9â
days, and following IT-phosphate buffered saline up to 72â
h as a control. We show that arterial oxygen saturation decreases, with maximal decline at 96â
h post IT-LPS. Blood oxygen levels negatively correlate with 7 of 10 quantitative markers of murine lung injury, including neutrophilia and interleukin-6 expression. This identifies infrared pulse oximetry as a method to non-invasively monitor arterial oxygen saturation following direct LPS instillations
The effect of particulate matter on paper degradation
Background: In this work we explore the chemical effects of particulate matter on paper. We exposed paper made
of pure cellulose to the environment in different locations in central London, outdoors (in sheltered conditions) and
indoors, for a period of up to 6 months. We monitored particulate matter (PM) deposition by counting the particles
deposited every month with a scanning electron microscope. We analysed elemental composition of the deposited
particles using inductively coupled plasma mass spectrometry. After accelerated degradation of the exposed samples,
we determined the degree of polymerisation using viscometry.
Results: We observed higher deposition rates and higher metal concentration outdoors than indoors. Elemental
analysis of the deposited particles revealed the presence of some transition metals (Fe, Cu, Cr) that can contribute to
the degradation of cellulose fibres through the Fenton reaction. By comparing the degree of polymerisation of proâ
tected, unprotected and unexposed samples we could determine the relative contribution of PM deposition on the
increase of the degradation rate. We found that the surface concentration of iron correlates with the reduction in the
degree of polymerisation of the exposed paper.
Conclusions: The results suggest that the presence of Fenton metals in PM has a significant effect on the acceleraâ
tion of the degradation of cellulose. However, we estimate that this will unlikely occur at the levels of area coverage
by PM that are typically avoided in indoor heritage through preventive maintenance and cleaning
Observational cohort study protocol: neutrophil function and energetics in adults with pneumonia and sepsis:Pneumonia Metabolism in Ageing (PUMA)
Using a non-invasive assessment of lung injury in a murine model of acute lung injury
Arterial oxygen saturation has not been assessed sequentially in conscious mice as a direct consequence of an in vivo murine model of acute lung injury. Here, we report daily changes in arterial oxygen saturation and other cardiopulmonary parameters by using infrared pulse oximetry following intratracheal lipopolysaccharide (IT-LPS) for up to 9â
days, and following IT-phosphate buffered saline up to 72â
h as a control. We show that arterial oxygen saturation decreases, with maximal decline at 96â
h post IT-LPS. Blood oxygen levels negatively correlate with 7 of 10 quantitative markers of murine lung injury, including neutrophilia and interleukin-6 expression. This identifies infrared pulse oximetry as a method to non-invasively monitor arterial oxygen saturation following direct LPS instillations
Protocol for a feasibility study of smoking cessation in the surgical pathway before major lung surgery: Project MURRAY
INTRODUCTION: Smoking prior to major thoracic surgery is the biggest risk factor for development of postoperative pulmonary complications, with one in five patients continuing to smoke before surgery. Current guidance is that all patients should stop smoking before elective surgery yet very few are offered specialist smoking cessation support. Patients would prefer support within the thoracic surgical pathway. No study has addressed the effectiveness of such an intervention in this setting on cessation. The overall aim is to determine in patients who undergo major elective thoracic surgery whether an intervention integrated (INT) into the surgical pathway improves smoking cessation rates compared with usual care (UC) of standard community/hospital based NHS smoking support. This pilot study will evaluate feasibility of a substantive trial. METHODS AND ANALYSIS: Project MURRAY is a trial comparing the effectiveness of INT and UC on smoking cessation. INT is pharmacotherapy and a hybrid of behavioural support delivered by the trained healthcare practitioners (HCPs) in the thoracic surgical pathway and a complimentary web-based application. This pilot study will evaluate the feasibility of a substantive trial and study processes in five adult thoracic centres including the University Hospitals Birmingham NHS Foundation Trust. The primary objective is to establish the proportion of those eligible who agree to participate. Secondary objectives include evaluation of study processes. Analyses of feasibility and patient-reported outcomes will take the form of simple descriptive statistics and where appropriate, point estimates of effects sizes and associated 95% CIs. ETHICS AND DISSEMINATION: The study has obtained ethical approval from NHS Research Ethics Committee (REC number 19/WM/0097). Dissemination plan includes informing patients and HCPs; engaging multidisciplinary professionals to support a proposal of a definitive trial and submission for a full application dependent on the success of the study. TRIAL REGISTRATION NUMBER: NCT04190966
In models we trust: how collaboration helped make a useful and accurate model for particulate matter deposition in indoor heritage
Stakeholder ownership: a theoretical framework for cross national understanding and analyses of stakeholder involvement in issues of substance use, problem use and addiction
This project contributes to understanding of the role of different stakeholder groups in the formulation and implementation of policy in the addictions field in Austria, Denmark, Finland, Italy, Poland and the UK. It comprises a number of case studies which draw on a range of theoretical frameworks to examine stakeholder dynamics at international, national and local levels. Mainly qualitative methods were used: interviews, policy and documentation analyses, webcrawler network analysis, and simple surveys; one case study was based on a survey only. The case studies fall into four main categories: three focus on controversial issues in drug treatment policy and practice â opioid substitution treatment, drug consumption rooms, and heroin assisted treatment; three look at stakeholder activity in alcohol control and public health; one pilot case study considers the potential role of researchers in the development of a scientific network around gambling; and one looks at the role of nurses in implementing brief interventions. In addition, themes explored across case studies included the role of evidence and stakeholder activity, drug users as stakeholders, and the role of external stakeholders on national policy. Professional stakeholders at implementation level and families and drug users as stakeholders are also considered. The case studies revealed that, in many instances, the addictions field is characterised by tensions between groups, by entrenched relationships between some addiction-specific stakeholder groups and powerful political stakeholders, and by the dominance of some forms of evidence over other forms of knowledge. Science and scientists are only influential in policy terms if their scientific findings âfitâ with the wider political context. Nevertheless, at least within the European context, there are opportunities for new stakeholder groups to emerge and gain policy salience and there are opportunities for stakeholders to challenge prevailing frames of understanding the addictions and prevailing modes of responding to problems of substance misuse and addiction
- âŠ