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Predicting potential spawning areas of European bass, Dicentrarchus labrax, in the Irish and Celtic Seas
Get PDFMarine fish species that form spawning aggregations are often vulnerable to exploitation, such as the European bass (Dicentrarchus labrax). Information on bass spawning aggregations is not well resolved temporally and spatially. Otolith daily growth increment (DGI) counts were conducted on 0-group bass collected in July-August 2014 & 2019 from seven settlement estuaries in the Irish and Celtic seas, to estimate the timing of spawning. These timings parameterised three-dimensional hydrodynamic and Lagrangian particle tracking models, run in reverse, to identify probable spawning locations. Estimated spawning occurred between April-May (inshore and offshore) < 200 km from each settlement area. At least two broad spawning areas were predicted: the central Irish Sea that led to post-larval recruitment in north Wales and northwest England, and the southern Irish Sea/Celtic Sea that led to post-larval recruitment in south Wales. Results indicate the current seasonal closure for northern stock bass may not protect spawning events that drive recruitment into settlement sites in Wales and northwest England. Surface temperatures and wind- and tide-driven surface currents determined the connectivity between spawning and settlement sites. Atmospheric drivers are expected to change in the future and management needs to account for potential regional shifts in spawning times and locations
Integrating susceptibility maps of multiple hazards and building exposure distribution: A case study of wildfires and floods for Quang Nam province, Vietnam
Get PDFNatural hazards have serious impacts worldwide on society, economy and environment. In Vietnam, throughout the years, natural hazards have caused significant loss of lives as well as severe devastation to houses, crops, and transportation. This research presents a new approach for multi-hazard (floods and wildfires) exposure estimates using machine learning models, Google Earth Engine, and spatial analysis tools for a typical case study, Quang Nam province in Central Vietnam. A geospatial database is built for multiple hazard modelling, including an inventory of climate-related hazards (floods and wildfires), topography, geology, hydrology, climate features (temperature, rainfall, wind), land use, and building data for exposure assessment. The susceptibility of each hazard is first modelled and then integrated into a multi-hazard exposure matrix to demonstrate a hazard profiling approach for multi-hazard risk assessment. The results are explicitly illustrated for floods and wildfire hazards and the exposure of buildings. Susceptibility models using the random forest approach provide model accuracy of AUC = 0.882 and 0.884 for floods and wildfires, respectively. The flood and wildfire hazards are combined within a semi-quantitative matrix to assess the building exposure to different hazards. Digital multi-hazard exposure maps of floods and wildfires aid the identification of areas exposed to climate-related hazards and the potential impacts of hazards. This approach can be used to inform communities and regulatory authorities on where to develop and implement long-term adaptation solutions
The role of hyperbole in conveying emotionality: the case of victim speech.
Get PDFFigurative expressions are commonly used in everyday language as a device for conveying emotion. Hyperbole (e.g. “It took ages for him to arrive”) specifically can provide linguistic emphasis; especially when speakers wish to convey emotional evaluations of negative situations. In sexual crime cases, the victim’s behavioural emotionality often enhances credibility, however, some research suggests that hyperbole-induced linguistic emotionality can be perceived negatively. In this study, we examined whether hyperbole impacts perceived emotionality and assessed the extent of this impact on measures of valence, intensity, and appropriateness. Participants were professionals (police officers) or jury-eligible laypersons who rated testimonies containing either hyperbolic or non-hyperbolic expressions. Results suggested that the use of hyperbole increased the perceived emotional intensity of the testimony, but made testimonies appear less emotionally appropriate than non-hyperbolic counterparts. In addition, regardless of the presence of hyperbole, laypersons judged the scenarios to be more unpleasant, and more emotionally intense compared to professionals. Findings suggest discrepancies between hyperbole usage and discourse goals, versus its perception. That is, hyperbole effectively enhances emotionality, but its role in victim speech may come with more caveats than anticipated, particularly when considering the proposed importance of victim emotionality in establishing credibility
Sidelobe Suppression Method with Improved CLEAN Algorithm for Pulse Compression OTDR
Get PDFAlthough pulse compression optical time domain reflectometry (PC-OTDR) exhibits high performance in spatial resolution and dynamic range, it inevitably introduces auto-correlation sidelobes, potentially impacting measurement accuracy. In this letter, an improved CLEAN algorithm is proposed to efficiently suppress sidelobes and enhance the peak-to-sidelobe ratio (PSLR) of signals in PC-OTDR. The proposed method introduces an adaptive step factor instead of the traditional fixed factor to reduce the number of iterations. Compared to the traditional method, the proposed method achieves a 2.87 dB improvement of PSLR from a 10 km sensing fiber. In addition, the computation time cost is significantly reduced, which is 1.92 s less than that of the traditional CLEAN algorithm
Defiance within the decline? Revisiting new Welsh speakers’ language journeys
Get PDFThe Welsh Government’s Welsh language strategy, Cymraeg: A million Welsh speakers [Welsh Government. 2017a. Cymraeg 2050: A Million Welsh Speakers. Cardiff: Welsh Government], aims to increase the numbers of Welsh speakers to one million by 2050. The creation of new Welsh speakers and immersion education form an integral part of the Welsh Government’s language revitalisation strategy and this study revisits new Welsh speakers from the Rhymney Valley, South Wales in 2016/2017 a decade on from the 2006 research study [Hodges, R. 2009. “Welsh Language Use Among Young People in the Rhymney Valley.” Contemporary Wales 22: 16–35. http://www.ingentaconnect.com/content/uwp/cowa/2009/00000022/00000001/art00004]. This longitudinal research provides further insights into their continuing language journeys, and indicates there has been a sustained reduction in this group’s use of Welsh by 2016/2017 due to factors relating to fluency, confidence and a lack of opportunities to use Welsh. However, the results indicate that new speakers play an important role in influencing family language transmission and in increasing language awareness within the workplace. This paper calls for further longitudinal research on new Welsh speakers’ language journeys so that this group may be appropriately supported as they make a crucial contribution to language revitalisation in Wales
Development of an electronic burns register: Digitisation of routinely collected hospital data for global burns surveillance
Get PDFIntroductionBurn registers provide important data that can track injury trends and evaluate services. Burn registers are concentrated in high-income countries, but most burn injuries occur in low- and middle-income countries where surveillance data are limited. Injury surveillance guidance recommends utilisation of existing routinely collected data where data quality is adequate, but there is a lack of guidance on how to achieve this. Our aim was to develop a rigorous and reproducible method to establish an electronic burn register from existing routinely collected data that can be implemented in low resource settings.MethodsData quality of handwritten routinely collected records (register books) from a tertiary government hospital burn unit in Mysore, India was assessed prior to digitisation. Process mapping was conducted for burn patient presentations. Register and casualty records were compared to assess the case ascertainment rate. Register books from February 2016 to February 2022 were scanned and anonymised. Scans were quality checked and stored securely. An online data entry form was developed. All data underwent double verification.ResultsProcess mapping suggested data were reliable, and case ascertainment was 95%. 1930 presentations were recorded in the registers, representing 0.84% of hospital all-cause admissions. 388 pages were scanned with 4.4% requiring rescanning due to quality problems. Two-step verification estimated there to be errors remaining in 0.06% of fields following data entry.ConclusionWe have described, using the example of a newly established electronic register in India, methods to assess the suitability and reliability of existing routinely collected data for surveillance purposes, to digitise handwritten data, and to quantify error during the digitisation process. The methods are likely to be of particular interest to burn units in countries with no active national burns register. We strongly recommend mobilisation of resources for digitisation of existing high quality routinely collected data as an important step towards developing burn surveillance systems in low resource settings
The Effectiveness and Cost-Effectiveness of Community Diagnostic Centres:A Rapid Review
Get PDFObjectives: To examine the effectiveness of community diagnostic centres as a potential solution to increasing capacity and reducing pressure on secondary care in the UK.Methods: A comprehensive search for relevant primary studies was conducted in a range of electronic sources in August 2022. Screening and critical appraisal were undertaken by two independent reviewers. There were no geographical restrictions or limits to year of publication. A narrative synthesis approach was used to analyse data and present findings.Results: Twenty primary studies evaluating twelve individual diagnostic centres were included. Most studies were specific to cancer diagnosis and evaluated diagnostic centres located within hospitals. The evidence of effectiveness appeared mixed. There is evidence to suggest diagnostic centres can reduce various waiting times and reduce pressure on secondary care. However, cost-effectiveness may depend on whether the diagnostic centre is running at full capacity. Most included studies used weak methodologies that may be inadequate to infer effectiveness.Conclusion: Further well-designed, quality research is needed to better understand the effectiveness and cost-effectiveness of community diagnostic centres
“That's not a proper ethnography”: a hybrid “propportune” ethnography to study nurses' perceptions of organisational culture in a British hospital
Get PDFPurposeThis paper revolves around the central question: is it possible to do “proper ethnography” without complete participant observation? The authors draw upon a student's experiences of negotiating National Health Service (NHS) ethical approval requirements and access into the student's research field, a British NHS hospital and having to adapt data collection methods for the student's doctoral research. The authors examine some of the positional (insider/outsider, native gone academic), methodological (long-term/interrupted, overt/covert) and contextual challenges that threatened the student's ethnographic study.Design/methodology/approachThe paper draws on reflexive vignettes written during the student's doctorate, capturing significant moments and issues within the student's research.FindingsThe authors highlight the temporal, practical, ethical and emotional challenges faced in attempting an ethnography of nursing culture within a highly regulated research environment. Having revealed the student's experience of researching this specific culture and finding ways to overcome these challenges, the authors conclude that the contemporary ethnographer needs to be increasingly flexible, opportunistic and somewhat covert.Research limitations/implicationsThe authors argue that it is possible to do “proper” and “good” ethnography without complete participant observation – it is not the method, the observation, that is the essence of ethnography, but whether the researcher achieves real understanding through thick descriptions of the culture that explain “what is really going on here”.Practical implicationsThe authors hope to assist doctoral students engage in “good” ethnographic research within (potentially) risk-averse host organisations, such as the NHS, whilst being located in neo-liberal performative academic organisations (Foster, 2017; McCann et al., 2020). The authors wish to contribute to the journal to ensure good ethnography is accessible and achievable to (particularly) doctoral researchers who have to navigate complex challenges exacerbated by pressures in both the host and home cultures. The authors wish to see doctoral researchers survive and thrive in producing good organisational ethnographies to ensure such research is published (Watson 2012), cognisant of the pressures and targets to publish in top-ranked journals (Jones et al. 2020).Originality/valueHaving identified key challenges, the authors demonstrate how these can be addressed to ensure ethnography remains accessible to and achievable for, doctoral researchers, particularly in healthcare organisations. The authors conclude that understanding can be attained in what they propose as a hybrid form of “propportune” ethnography that blends the aim of the essence of “proper” anthropological approaches with the “opportunism” of contemporary data collection solutions
