Radio direction finding using pseudo-Doppler for UAV-based Animal Tracking

Radio Direction Finding (RDF) is commonly used for low cost tracking and navigation systems. However, for a low cost application and mobility, the design constraints are highly limited. Pseudo Doppler (PD) can improve RDF capabilities without being cost prohibitive. This work entails the analysis of PD RDF and its potential use for Unmanned Aerial Vehicles (UAV) that are currently employed in wildlife research animal tracking. PD is based on the doppler effect or doppler shift. The doppler effect works like a frequency modulator that increases or decreases the observed frequency depending on whether a signal source is approaching or receding the detector. Noting this doppler shift can be used to improve the accuracy of the RDF algorithm. Normally, deploying the doppler method would require the physical rotation of an antenna at a relatively high frequency. Instead, PD employs a grid of electrically isolated antennas and then digitally samples each of the antennas in a sequential order, mimicking the action of mechanical rotation. Thus, PD removes the requirement to physically rotate the antenna yet provides the increased accuracy available with sensing the doppler effect. PD can be implemented at low cost using an off-the-shelf Software Defined Radio (SDR) and simple monopole antennas. This work includes the design and implementation of a PD RDF on an SDR for deployment on an existing UAV platform. The expected improved performance of the PD system is to be tested on the existing UAV platform and compared against traditional tracking methods (such as a single Yagi antenna)

Exploring the feasibility of using routinely collected data to produce antibiotic prescribing profiles for general dental practitioners in Wales

This article describes a project which assessed whether routinely collected antibiotic prescribing and NHS dental treatment data could be linked to produce personalised prescribing profiles for general dental practitioners working in Wales, UK. Dental public health competencies required for this work included: • Multi-agency working to develop a sustainable system of monitoring antibiotic prescribing in primary dental care in Wales • Dental public health intelligence • Development of ‘Dental Service Quality’ indicators

Protocol for a randomized controlled trial on community education and surveillance on antibiotics use among young children in Nepal

BACKGROUND: Antimicrobial resistance (AMR) is one of the top ten threats to global health. There exists limited empirical evidence on effective approaches to address this threat. In low- and middle-income countries (LMICs), one of the primary drivers of AMR is easy access to antibiotics without prescriptions, in particular from community pharmacies. Interventions to reduce non-prescribed use of antibiotics and surveillance systems to track such usage are critically needed. This protocol describes a study that aims to test the effect of an educational intervention targeted to parents of young children on non-prescribed antibiotics consumption in Nepal and to track such consumption using a phone-based application. METHODS: The study is a clustered randomized controlled trial, in which we randomly assign 40 urban wards of Kathmandu Valley to either treatment group or control group, and randomly select 24 households in each ward. Households in the treatment group will receive an education intervention consisting of an AMR pitch (an in-person interaction that lasts up to an hour) by community nurses, videos and text messages on AMR every two weeks, and a brochure. We will conduct a survey at baseline with the parents of children ages 6 months to 10 years and track consumption of antibiotics and health care use among these children for a period of 6 months using a phone-based application. CONCLUSION: While the study will primarily inform future policy and programmatic efforts to reduce AMR in Nepal, the study-both the education intervention and the surveillance system-can serve as a prototype for tackling AMR in other similar settings

Development of a core outcome set for oral health services research involving dependent older adults (DECADE): a study protocol

Background: Oral healthcare service provision for dependent older adults is often poor. For dental services to provide more responsive and equitable care, evidence-based approaches are needed. To facilitate future research, the development and application of a core outcome set would be beneficial. The aim of this study is to develop a core outcome set for oral health services research involving dependent older adults. Methods: A multi-step process involving consensus methods and including key stakeholders will be undertaken. This will involve identifying potentially relevant outcomes through a systematic review of previous studies examining the effectiveness of strategies to prevent oral disease in dependent older adults, combined with semi-structured interviews with key stakeholders. Stakeholders will include dependent older adults, family members, carers, care-home managers, health professionals, researchers, dental commissioners and policymakers. To condense and prioritise the long list of outcomes generated by the systematic review and semi-structured interviews, a Delphi survey consisting of several rounds with key stakeholders, as mentioned above, will be undertaken. The 9-point Likert scale proposed by the GRADE Working Group will facilitate this consensus process. Following the Delphi survey, a face-to-face consensus meeting with key stakeholders will be conducted where the stakeholders will anonymously vote and decide on what outcomes should be included in the finalised core outcome set. Discussion: Developing a core set of outcomes that are clinically and patient-centred will help improve the design, conduct and reporting of oral health services research involving dependent older adults, and ultimately strengthen the evidence base for high-quality oral health care for dependent older adults. Trial registration: The study was registered with the COMET initiative on 9 January 2018 http://www.cometinitiative.org/studies/details/1081?result=true

Time to complete contemporary dental procedures – estimates from a cross-sectional survey of the dental team

Background: There are few contemporary studies on the time taken to complete dental procedures, those most heavily relied on in the United Kingdom date back to 1999. Objectives: This work aimed to establish how long members of the dental team took to complete specific dental procedures, relevant to their scope of practice. Methods: Data were collected via a purposive sample of 96 dentists, dental hygienists/therapists and dental nurses. Via an online survey, participants were asked to state the mean, minimum and maximum time they estimated that they took to complete individual dental procedures. Results: The mean time taken to complete procedures common to both dentists and dental hygienists/therapists ranged from 3.7 to 4 min respectively for clinical note reading prior to seeing patients to 30.1 and 28 min to undertake root surface debridement. There were no significant differences between the time taken by dentists and dental hygienists/therapists to treat adult patients. However, in all but one procedure, dental hygienists/therapists reported taking longer (p = 0.04) to treat child patients. Conclusions: The data provided here represent an up to date assessment of the time taken to complete specific tasks by different members of the dental team. These data will be of value to service planners and commissioners interested in evolving a dental care system that employs a greater degree of skill-mix and preventively oriented care

The development and application of a chairside oral health risk and need stratification tool in general dental services

Objective To describe the development and application of the Assessment of Clinical Oral Risks and Needs (ACORN) stratification tool based on a traffic light system in National Health Service (NHS) general dental services (GDS) Wales, UK. Materials and methods This was a secondary analysis of routinely-collected dental care data. All courses of treatment provided in dental practices participating in NHS GDS Reform Programme between July 2018 and September 2019, in which an ACORN assessment and age were recorded were included in the analysis. Results A total of 236,490 subjects contributed 339,933 courses of treatment during the study period. ‘Amber’ and ‘red’ ACORN outcomes were associated with more courses of treatment per annum than ‘green’ outcomes. Outcomes indicating an increased risk of decay or other dental problems were associated with a greater likelihood of several operative treatment items. Patients at greater risk of poor periodontal health were more likely to receive extractions and dentures than low-risk patients. Patients were most likely to either remain in the same ACORN outcome categories or move to a healthier state between assessments. Conclusion More research is required to understand the utility of the ACORN tool in risk communication and behaviour change

Setting the context for a complex dental intervention of role substitution in care homes: initial process evaluation findings

Background The oral health and quality-of-life of older adults residing in care homes is poorer than those in the community. Oral health care provision is often unavailable and a concern and challenge for managers. The use of Dental Therapists and Dental Nurses rather than dentists could potentially meet these needs. ObjectivesSENIOR (uSing rolE-substitutioN In care homes to improve oRal health) is a randomised controlled trial designed to determine whether role substitution could improve oral health for this population. A parallel process evaluation was undertaken to understand context. This paper reports on the first phase of the process evaluation.Materials and MethodsSemi-structured interviews were conducted with 21 key stakeholders who either worked or had experience of dependent care settings. Questions were theoretically informed by the: Promoting Action on Research Implementation in Health Services (PAHRIS) framework. The focus was on contextual factors that could influence adoption in practice and the pathway-to-impact. Interviews were fully transcribed and analysed thematically.ResultsThree themes (receptive context, culture, and leadership) and 11 codes were generated. Data shows the complexity of the setting and contextual factors that may work as barriers and facilitators to intervention delivery. Managers are aware of the issues regarding oral health and seek to provide best care, but face many challenges including staff turnover, time pressures, competing needs, access to services and financial constraints. Dental professionals recognise the need for improvement and view role substitution as a viable alternative to current practice. ConclusionAlthough role substitution could potentially meet the needs of this population, an in-depth understanding of contextual factors appeared important in understanding intervention delivery and implementation.<br/