Reflections on Sustainability -- Assessing the Long-Term Impact of Three TCWF Initiatives

Summarizes an evaluation of the post-funding impact of three initiatives begun in 1996-2002. Analyzes the elements that were sustained, the "legacy" effects on the community, and the factors that influence sustainability. Discusses lessons learned

A review of the factors affecting the survival of donkeys in semi-arid regions of sub-Saharan Africa.

The large fluctuations seen in cattle populations during periods of drought in sub-Saharan Africa are not evident in the donkey population. Donkeys appear to have a survival advantage over cattle that is increasingly recognized by smallholder farmers in their selection of working animals. The donkey's survival advantages arise from both socioeconomic and biological factors. Socioeconomic factors include the maintenance of a low sustainable population of donkeys owing to their single-purpose role and their low social status. Also, because donkeys are not usually used as a meat animal and can provide a regular income as a working animal, they are not slaughtered in response to drought, as are cattle. Donkeys have a range of physiological and behavioural adaptations that individually provide small survival advantages over cattle but collectively may make a large difference to whether or not they survive drought. Donkeys have lower maintenance costs as a result of their size and spend less energy while foraging for food; lower energy costs result in a lower dry matter intake (DMI) requirement. In donkeys, low-quality diets are digested almost as efficiently as in ruminants and, because of a highly selective feeding strategy, the quality of diet obtained by donkeys in a given pasture is higher than that obtained by cattle. Lower energy costs of walking, longer foraging times per day and ability to tolerate thirst may allow donkeys to access more remote, under-utilized sources of forage that are inaccessible to cattle on rangeland. As donkeys become a more popular choice of working animal for farmers, specific management practices need to be devised that allow donkeys to fully maximize their natural survival advantage

High-Speed Infrared Measurement of Injector Tip Temperature during Diesel Engine Operation

[EN] Pre-catalyst engine emissions and detrimental injector deposits have been widely associated with the near-nozzle fluid dynamics during and after the injection events. Although the heating and evaporation of fuel films on the nozzle surface directly affects some of these processes, there are no experimental data for the transient evolution of nozzle surface temperature during typical engine conditions. In order to address this gap in knowledge, we present a non-intrusive approach for the full-cycle time resolved measurement of the surface temperature of production nozzles in an optical engine. A mid-wave infrared high-speed camera was calibrated against controlled conditions, both out of engine and in-engine to account for non-ideal in surface emissivity and optical transmissivity. A custom-modified injector with a thermocouple embedded below the nozzle surface was used to validate the approach under running engine conditions. Calibrated infrared thermography was then applied to characterise the nozzle temperature at 1200 frames per second, during motored and fired engine operation, thus revealing for the first time the effect of transient operating conditions on the temperature of the injector nozzle's surface.This work was supported by the UK's Engineering and Physical Science Research Council (EPSRC grant EP/S513751/1) and BP International Ltd. Raul Payri was hosted at the University of Brighton under the Salvador de Madariaga programme (reference PRX18/00243) from Ministerio de Ciencia, Innovacion y universidades from the Spanish Government.Gander, A.; Sykes, D.; Payri, R.; De Sercey, G.; Kennaird, D.; Gold, M.; Pearson, RJ.... (2021). High-Speed Infrared Measurement of Injector Tip Temperature during Diesel Engine Operation. Energies. 14(15):1-19. https://doi.org/10.3390/en14154584119141

Patient acceptability of the physiotherapy first contact practitioner role in primary care: A realist informed qualitative study

Background: Approximately 30% of general practitioner (GP) consultations are due to musculoskeletal disorders (MSKDs). Physiotherapists are trained to assess, diagnose and treat MSKDs and provide an alternative to GP consultation for primary care patients as first contact physiotherapists (FCPs).Aim: To explore patient perceived acceptability of the FCP role using realist methods to understand what works for whom, how, why and in what circumstances.Methods: A realist evaluation was undertaken, which involved three stages: forming the theory area framework; testing the theory framework and refining the programme theory. The theory framework was formed through realist synthesis. Realist interviews tested this framework. Data were collected from two GP practice case study sites and interviews were undertaken at each site. N = 20 participants were interviewed in total. In each practice, this constituted patients (n = 5), GPs (n = 1), FCPs (n = 2), receptionists (n = 1) and practice managers (n = 1). Interview data were analysed against preliminary hypotheses and, where appropriate, new theory areas were created.Results: The evaluation highlighted that acceptability of the FCP role was influenced by ‘expectations’, ‘accessibility’ and ‘promoting the role’. Whilst some findings were shared by both practices, different contexts resulted in unique practice findings.Conclusion: Patients were predominantly accepting of FCPs, nevertheless, there was a scope to increase acceptability through an implementation strategy that considered the contexts of the individual patient, as well as wider practice contexts

Design and Build of Reactor Simulator for Fission Surface Power Technology Demonstrator Unit

The Nuclear Systems Team at NASA Marshall Space Flight Center (MSFC) focuses on technology development for state of the art capability in non-nuclear testing of nuclear system and Space Nuclear Power for fission reactor systems for lunar and Mars surface power generation as well as radioisotope power systems for both spacecraft and surface applications. Currently being designed and developed is a reactor simulator (RxSim) for incorporation into the Technology Demonstrator Unit (TDU) for the Fission Surface Power System (FSPS) Program, which is supported by multiple national laboratories and NASA centers. The ultimate purpose of the RxSim is to provide heated NaK to a pair of Stirling engines in the TDU. The RxSim includes many different systems, components, and instrumentation that have been developed at MSFC while working with pumped NaK systems and in partnership with the national laboratories and NASA centers. The main components of the RxSim are a core, a pump, a heat exchanger (to mimic the thermal load of the Stirling engines), and a flow meter for tests at MSFC. When tested at NASA Glenn Research Center (GRC) the heat exchanger will be replaced with a Stirling power conversion engine. Additional components include storage reservoirs, expansion volumes, overflow catch tanks, safety and support hardware, instrumentation (temperature, pressure, flow) for data collection, and power supplies. This paper will discuss the design and current build status of the RxSim for delivery to GRC in early 2012

Patient view of the advanced practitioner (AP) role in primary care: A realist-informed synthesis

Background: Approximately 30% of general practitioner consultations are due to musculoskeletal disorders (MSKDs). Physiotherapists are trained to assess, diagnose and treat a range of MSKDs, and could provide the first point of contact for primary care patients. There is limited evidence on whether this role is acceptable to patients; however, previous research has explored advanced practitioner (AP) roles in primary care, which could inform this new initiative. Aims: This study used realist synthesis to explore factors that influence patient acceptability of AP roles in primary care. Materials& Methods: A realist synthesis was undertaken to identify initial programme theories regarding acceptability. Databases were searched to identify relevant literature. Identified studies were subject to inclusion and exclusion criteria, resulting in 38 studies included for synthesis. Theory-specific data extraction sheets were created and utilised. Data were analysed through identifying contexts, mechanisms and outcomes to formulate hypotheses. Hypotheses were validated through consultation with expert stakeholders. Results: Eight theory areas were identified that potentially impacted on patient acceptability of the role: patient's prior experience of condition management; patient's expectations of condition management; communication; continuity of the individual practitioner; practitioner's scope of practice; accessibility; professional hierarchy and promoting the role. Nineteen hypotheses on the AP role were developed around these theory areas. Discussion: Role acceptabiliy was influenced significantly by context and may change as the role develops, for instance, as waiting times change. Conclusion: Hypotheses will inform a subsequent realist evaluation exploring the physiotherapy AP role in primary care. Future research is needed to understand the acceptability of first contact physiotherapists delivering certain skills

Timeline analysis and wavelet multiscale analysis of the AKARI All-Sky Survey at 90 micron

We present a careful analysis of the point source detection limit of the AKARI All-Sky Survey in the WIDE-S 90 $\mu$m band near the North Ecliptic Pole (NEP). Timeline Analysis is used to detect IRAS sources and then a conversion factor is derived to transform the peak timeline signal to the interpolated 90 $\mu$m flux of a source. Combined with a robust noise measurement, the point source flux detection limit at S/N $>5$ for a single detector row is $1.1\pm0.1$ Jy which corresponds to a point source detection limit of the survey of $\sim$0.4 Jy. Wavelet transform offers a multiscale representation of the Time Series Data (TSD). We calculate the continuous wavelet transform of the TSD and then search for significant wavelet coefficients considered as potential source detections. To discriminate real sources from spurious or moving objects, only sources with confirmation are selected. In our multiscale analysis, IRAS sources selected above $4\sigma$ can be identified as the only real sources at the Point Source Scales. We also investigate the correlation between the non-IRAS sources detected in Timeline Analysis and cirrus emission using wavelet transform and contour plots of wavelet power spectrum. It is shown that the non-IRAS sources are most likely to be caused by excessive noise over a large range of spatial scales rather than real extended structures such as cirrus clouds.Comment: 16 pages, 19 figures, 5 tables, accepted for publication in MNRA

Development of a Teaching Program on The State of the Salt Ingestion Which Prevents Heatstroke and High Blood Pressure

In vitro enzymatic profiles for tofacitinib and PIK-294. (DOC 35 kb

In-flight calibration and verification of the Planck-LFI instrument

In this paper we discuss the Planck-LFI in-flight calibration campaign. After a brief overview of the ground test campaigns, we describe in detail the calibration and performance verification (CPV) phase, carried out in space during and just after the cool-down of LFI. We discuss in detail the functionality verification, the tuning of the front-end and warm electronics, the preliminary performance assessment and the thermal susceptibility tests. The logic, sequence, goals and results of the in-flight tests are discussed. All the calibration activities were successfully carried out and the instrument response was comparable to the one observed on ground. For some channels the in-flight tuning activity allowed us to improve significantly the noise performance.Comment: Long technical paper on Planck LFI in flight calibration campaign: 109 pages in this (not final) version, 100 page in the final JINST versio

Twenty questions about design behavior for sustainability, report of the International Expert Panel on behavioral science for design

How behavioral scientists, engineers, and architects can work together to advance how we all understand and practice design—in order to enhance sustainability in the built environment, and beyond.https://www.nature.com/documents/design_behavior_for_sustainability.pdfPublished versio