Nickel/Yttria-stabilised zirconia cermet anodes for solid oxide fuel cells

This thesis deals with the porous Ni/yttria-stabilized zirconia (YSZ) cermet anode on a YSZ electrolyte for solid oxide fuel cells (SOFC). Such anodes are predominantly operated in moist hydrogen at 700°C to 1000°C, and the most important technological parameters are the polarization resistance and the long-term stability.\ud The polarization resistance can be measured by a number of techniques, in the present work impedance spectroscopy has been used extensively. By impedance spectroscopy limiting processes in the anode polarization resistance may often be separated and characterized individually, provided they have a reasonable separation in time constants

European Landscapes in Transition – Implications for Policy and Practice

European rural landscapes as we experience them today are the result of ongoing processes and interactions between nature and society. These are changing fast: the future landscapes will be different from those we know currently. Written for academics, policy-makers and practitioners, this book is the first to explore the complex histories of rural landscapes in Europe as a basis for their sound governance in future. Tensions between the needs of agricultural spaces driven by economic incentives and a variety of non-agricultural functions are explored to demonstrate current challenges and the shortfalls in the policies that address them. Using inspiring case studies that highlight the roles of regional agents and communities, the authors go further than the usual analyses to illustrate the importance of local context. Written by experts currently working to revitalise the rural landscapes of Europe, the text concludes with suggestions for improving landscape policy and planning practice

Results from systematic screening for cardiovascular risk in outpatients with rheumatoid arthritis in accordance with the EULAR recommendations

Aim: To investigate risk factors for the development of cardiovascular disease (CVD) and estimate the risk of cardiovascular death in rheumatoid arthritis (RA) patients in accordance with EULAR recommendations. Materials and methods: Outpatients with RA ≤85 years of age from a Danish hospital were invited to participate. Patients' risk of cardiovascular death was calculated according to the SCORE system, based on total cholesterol/high-density lipoprotein (HDL) ratio, smoking habits, blood pressure, age and gender. The SCORE was adjusted based on disease duration, IgM-RF/anti-CCP positivity and the presence of extra-articular manifestations. Factors such as history of CVD, hypertension or diabetes mellitus (DM), fasting glucose, exercise habits, body mass index (BMI) and waist circumference were explored. Results: 836 patients participated; 71.5% women; mean (SD) age 64.3 years (12.0); 152 (19.1%) were already diagnosed with CVD and 74 (9.0%) with DM. Among the 644 patients without CVD or DM, 158 (24.5%) were smokers, 229 (35.8%) had a systolic blood pressure ≥140, 397 (65.6%) total cholesterol ≥5.0 mM/L, 326 (55.4%) low-density lipoprotein cholesterol ≥3.0 mM/L, 18 (4.0%) women and 19 (12.1%) men had a HDL-cholesterol level below 1.2/1.0 mM/L. BMI was &gt;25 in 409 (63.8%). Waist circumference was above 80/94 cm in 297 (63.3%) of female and 111 (63.8%) of male patients, respectively, and 418 (64.9%) exercised ≤5 times a week. Among patients without DM, 14.3% had a fasting glucose ≥6.0 mmol/L. The SCORE was ≥5 in 122 (20.2%). They were referred to follow-up by their GP and community advice services. Conclusions: Systematic screening revealed several risk factors that needed medical follow-up or support to initiate lifestyle changes.</p

Neural network interpolation of the magnetic field for the LISA Pathfinder Diagnostics Subsystem

LISA Pathfinder is a science and technology demonstrator of the European Space Agency within the framework of its LISA mission, which aims to be the first space-borne gravitational wave observatory. The payload of LISA Pathfinder is the so-called LISA Technology Package, which is designed to measure relative accelerations between two test masses in nominal free fall. Its disturbances are monitored and dealt by the diagnostics subsystem. This subsystem consists of several modules, and one of these is the magnetic diagnostics system, which includes a set of four tri-axial fluxgate magnetometers, intended to measure with high precision the magnetic field at the positions of the test masses. However, since the magnetometers are located far from the positions of the test masses, the magnetic field at their positions must be interpolated. It has been recently shown that because there are not enough magnetic channels, classical interpolation methods fail to derive reliable measurements at the positions of the test masses, while neural network interpolation can provide the required measurements at the desired accuracy. In this paper we expand these studies and we assess the reliability and robustness of the neural network interpolation scheme for variations of the locations and possible offsets of the magnetometers, as well as for changes in environmental conditions. We find that neural networks are robust enough to derive accurate measurements of the magnetic field at the positions of the test masses in most circumstances

Methodology for environmental assessment of agri-environment schemes: the Agri Environmental Footprint Index

End of project reportAgri-environment schemes pay farmers for the provision of environmental services. Such schemes tend to have multiple measures that deliver multiple environmental objectives, and there is a lack of consistent methodology with which to measure the environmental benefits of such schemes. Funded by EU FP6, the Agri-Environment Footprint project (www.footprint.rdg.ac.uk) aimed to address this challenge, and this report provides results from selected components of the project.European Unio

Experiences of a patient-initiated self-monitoring service in inflammatory arthritis: A qualitative exploration

Objectives To explore patients’ experience of a patient-initiated self-monitoring service for people with rheumatoid or psoriatic arthritis on methotrexate. Methods Qualitative semi-structured interviews, embedded within a randomized controlled trial. Twelve participants who were randomly assigned to the intervention arm were interviewed. Interviews were digitally recorded, transcribed verbatim and analysed using inductive thematic analysis. The study received full NHS ethics approval from Camden and Islington Community Local Research Ethics Committee (Ref. 09/H0722/91). Results Analysis revealed five key themes. Participants described usual care as burdensome and an inefficient use of time, particularly those in employment. Being able to self-monitor and initiate their own care increased patients’ knowledge about their illness and its treatment, and enabled them to gain a sense of control and ownership over their arthritis. Patients appreciated the personalised nature of the new service, which allowed them to be seen at a time and by a method more appropriate to their needs. There was however some concern about fidelity to the service protocol, confusion about the lack of consistency between symptoms and laboratory results and anxiety about self-monitoring. Conclusions Overall, participants were positive about the new service, in comparison to usual care, valuing its tailored approach and empowering effects. Further work is needed to ensure adherence to the service protocol and address anxieties around self-monitoring prior to any widespread implementation of the service