232 research outputs found

    Reduced Gaze Following and Attention to Heads when Viewing a "Live" Social Scene

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    Social stimuli are known to both attract and direct our attention, but most research on social attention has been conducted in highly controlled laboratory settings lacking in social con- text. This study examined the role of social context on viewing behaviour of participants whilst they watched a dynamic social scene, under three different conditions. In two social groups, participants believed they were watching a live webcam of other participants. The socially-engaged group believed they would later complete a group task with the people in the video, whilst the non-engaged group believed they would not meet the people in the scene. In a third condition, participants simply free-viewed the same video with the knowl- edge that it was pre-recorded, with no suggestion of a later interaction. Results demonstrat- ed that the social context in which the stimulus was viewed significantly influenced viewing behaviour. Specifically, participants in the social conditions allocated less visual attention towards the heads of the actors in the scene and followed their gaze less than those in the free-viewing group. These findings suggest that by underestimating the impact of social context in social attention, researchers risk coming to inaccurate conclusions about how we attend to others in the real world

    Dipyridamole potentiates the in vitro activity of MTA (LY231514) by inhibition of thymidine transport

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    The novel pyrrolopyrimidine-based antifolate LY231514 (MTA), inhibits multiple folate-requiring enzymes including thymidylate synthase, glycinamide ribonucleotide formyltransferase and dihydrofolate reductase. Both thymidine and hypoxanthine are required to reverse MTA growth inhibition in leukaemia and colon cancer cells. Prevention of MTA growth inhibition by thymidine and/or hypoxanthine was investigated in two human lung (A549, COR L23) and two breast (MCF7, T47D) tumour cell lines, and the effect of the nucleoside/base transport inhibitor dipyridamole (DP) on thymidine and hypoxanthine rescue defined. MTA IC50values (continuous exposure three population doublings) were: A549–640 n M, COR L23–28 n M, MCF7–52 n M and T47D–46 n M. Thymidine (1 μM) completely prevented growth inhibition at the MTA IC50in all cell lines. At 10 × IC50, growth inhibition was only partially reversed by thymidine (≤ 10 μM); both thymidine and hypoxanthine (30 μM) being required for complete reversal, reflecting the multi-targeted nature of MTA. Growth inhibition by MTA was not affected by hypoxanthine alone. A non-toxic concentration (1 μM) of DP prevented thymidine/hypoxanthine rescue of MTA indicating that DP may potentiate MTA activity by preventing nucleoside and/or base salvage. Thymidine transport was inhibited by ≥ 89% by 1 μM DP in all cell lines, whereas hypoxanthine transport was inhibited only in A549 and MCF7 cells. Therefore, prevention of end-product reversal of MTA-induced growth inhibition by DP can be explained by inhibition of thymidine transport alone. © 2000 Cancer Research Campaig

    Participant recruitment to FiCTION, a primary dental care trial – survey of facilitators and barriers

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    Objective To identify reasons behind a lower than expected participant recruitment rate within the FiCTION trial, a multi-centre paediatric primary dental care randomised controlled trial (RCT). Subjects (materials) and methods An online survey, based on a previously published tool, consisting of both quantitative and qualitative responses, completed by staff in dental practices recruiting to FiCTION. Ratings from quantitative responses were aggregated to give overall scores for factors related to participant recruitment. Qualitative responses were independently grouped into themes. Results Thirty-nine anonymous responses were received. Main facilitators related to the support received from the central research team and importance of the research question. The main barriers related to low child eligibility rates and the integration of trial processes within routine workloads. Conclusions These findings have directed strategies for enhancing participant recruitment at existing practices and informed recruitment of further practices. The results help provide a profile of the features required of practices to successfully screen and recruit participants. Future trials in this setting should consider the level of interest in the research question within practices, and ensure trial processes are as streamlined as possible. Research teams should actively support practices with participant recruitment and maintain enthusiasm among the entire practice team

    A rapid review of variation in the use of dental general anaesthetics in children

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    Introduction: The use of dental general anaesthetics (DGAs) remains a cause for concern due to additional strains placed on health services. There are numerous factors influencing the prevalence and use of DGAs, and understanding these is an important first step in addressing the issue. Aim: Conduct a rapid review of current peer-reviewed and grey literature on the variation in the use of DGAs in children. Methods: Electronic searching using Medline via Ovid covering DGA articles from 1998 onwards, written in English. Publication types included primary and secondary sources from peer-reviewed journals and reports, as well as grey literature. Results: From 935 results, 171 articles were included in the final review. Themes emerging from the literature included discussions of DGA variation, variations in standards of service provision by health services, and the socio-demographic and geographical characteristics of children. Prominent socio-demographic and geographical characteristics included age, other health conditions, ethnic and cultural background, socioeconomic status and deprivation, and geographical location. Conclusions: This review identified numerous variations in the patterns associated with DGA provision and uptake at both a health service and individual level. The findings demonstrate the complicated and multifaceted nature of DGA practices worldwide

    Evaluation of a new paediatric dentistry intravenous sedation service

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    Introduction: Intravenous sedation (IVS) with propofol offers an alternative to inhalation sedation or general anaesthesia (GA) for dentally anxious young people who require treatment. It offers a greater level of anxiolysis than inhalation sedation and reduced morbidity when compared with GA. Methods: Data were collected prospectively from a convenience sample of children requiring IVS. Participants completed the Children's Experiences of Dental Anxiety Measure (CEDAM) at the start of every visit. Patient demographics, treatment completed, surgery and recovery time were recorded. Feedback was obtained following their first visit. Results: Treatment was successful for 91.5% (43/47) of patients. The average surgery and discharge time was 32.9 (8-105 minutes) and 33.1 (5-84 minutes), respectively. The CEDAM scores were between 14 and 30 (mean score 20.8). Thematic content analysis of the feedback was carried out and themes relating to communication, environment, appointment times, service satisfaction and advice to other patients emerged. Discussion: CEDAM scores may have been lower than expected due to under-reporting by patients or clinicians' perception of higher anxiety levels. Feedback was reviewed regularly and improvements made where possible. Conclusion: The majority of patients successfully received dental treatment under IVS. Changes have been made to the service to improve patient experience and maximise productivity

    It’s part of my life: engaging university and community to enhance science and mathematics education - final report, March 2017

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    This project is designed to improve mathematics and science teaching in Australian schools by engaging pre-service teachers with the mathematics and science that underpins everyday life in Australian regional communities. The project draws together the strengths of university mathematicians, scientists, and specialist educators to enhance the higher education mathematics and science education curriculum framework by grounding it in the practical contexts that are an integral part of our daily lives. In so doing, 'It's part of my life' addresses two critical issues in mathematics and science education: lack of teacher confidence, and lack of student interest. Along with a flexible and adaptive, scalable model for embedding real-world contexts and related teaching strategies into curriculum, project outcomes include an open educational resource of evaluated and documented real-life scenarios for inclusion in curriculum across all educational levels, tools for evaluating new scenarios, and increased networking amongst university researchers, specialist educators and members of the wider community

    How do patients perceive the British orthodontic society online information resource about orthognathic treatment? A qualitative study

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    OBJECTIVES: To explore the accessibility, usability and relevance of the British Orthodontic Society (BOS) online information resource (OIR), Your Jaw Surgery. DESIGN: Qualitative, cross-sectional study. SETTING: 5 UK sites. PARTICIPANTS: Patients before, during and after treatment for non-cleft skeletal discrepancy. METHODS: Patients were identified at joint clinics and recruited after having time to view the OIR. Semi-structured interviews were conducted with 17 patients (aged 16-46 years). The interviews were transcribed and thematic analysis was undertaken using a framework approach. RESULTS: The main themes identified were the overall usefulness, personal relevance and positive perceptions of the OIR. The OIR was seen to be useful for patients considering treatment, and potentially useful for patients undergoing treatment. Participants were looking for a personally relevant resource that would give them the best possible idea of how they would look and feel after surgery. The OIR was perceived as trusted, positive and reassuring. CONCLUSIONS: Patients at different stages of treatment found the OIR helpful and reassuring. Clinicians may find it useful to direct patients to the OIR to complement a professional consultation, but should be aware that patients may perceive it as presenting a positive image of the long-term benefits of orthognathic surgery

    The oral health of secondary school pupils:baseline data from the Brushing RemInder 4 Good oral HealTh (BRIGHT) trial

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    Background This paper describes the sociodemographics and oral health of UK secondary school pupils. They were participants of the BRIGHT trial, which was designed to evaluate the effectiveness of a toothbrushing intervention to reduce dental caries. Methods Overall, 4,680 pupils aged 11-13 years attending 42 secondary schools in England, Scotland and Wales with above average proportion of pupils eligible for free school meals, were recruited to the trial. Sociodemographic data were collected. Participants had a clinical assessment for caries, plaque and bleeding and completed measures of oral and general health-related quality of life and oral health behaviours (frequency of toothbrushing, dental attendance and cariogenic food/drinks consumed). Regression analyses were performed. Results Over one-third (34.7%) of participants had caries experience, with 44.5% reporting their oral health had an impact on their daily lives. Factors associated with a statistically significant increased likelihood of caries experience were older age, being female, eligibility for free school meals, worse oral health-related quality of life, higher cariogenic diet, less than twice-daily toothbrushing, living in a more deprived area and lower school attendance. Conclusions The prevalence and impact of dental caries on the lives of pupils remains high, with further oral health promotion activities needed in targeted secondary schools.</p

    The oral health of secondary school pupils:baseline data from the Brushing RemInder 4 Good oral HealTh (BRIGHT) trial

    Get PDF
    Background This paper describes the sociodemographics and oral health of UK secondary school pupils. They were participants of the BRIGHT trial, which was designed to evaluate the effectiveness of a toothbrushing intervention to reduce dental caries. Methods Overall, 4,680 pupils aged 11-13 years attending 42 secondary schools in England, Scotland and Wales with above average proportion of pupils eligible for free school meals, were recruited to the trial. Sociodemographic data were collected. Participants had a clinical assessment for caries, plaque and bleeding and completed measures of oral and general health-related quality of life and oral health behaviours (frequency of toothbrushing, dental attendance and cariogenic food/drinks consumed). Regression analyses were performed. Results Over one-third (34.7%) of participants had caries experience, with 44.5% reporting their oral health had an impact on their daily lives. Factors associated with a statistically significant increased likelihood of caries experience were older age, being female, eligibility for free school meals, worse oral health-related quality of life, higher cariogenic diet, less than twice-daily toothbrushing, living in a more deprived area and lower school attendance. Conclusions The prevalence and impact of dental caries on the lives of pupils remains high, with further oral health promotion activities needed in targeted secondary schools.</p
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