1,151 research outputs found

    Death Metal: Characterising the effects of environmental lead pollution on mobility and childhood health within the Roman Empire.

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    The use of lead was ubiquitous throughout the Roman Empire, including as material for water pipes, eating vessels and as a sweetener for wine. Children are particularly susceptible to the effects of lead and it is likely that the widespread use of this deadly metal amongst Roman populations led to a range of adverse health effects. Indeed, lead poisoning has even been implicated in the downfall of the Roman Empire. This research examines the direct effect of lead poisoning on the inhabitants of the Empire, and for the first time introduces a bioarchaeological perspective to how lead exposure affected health during the Roman period. The results provide strong evidence that Roman lead pollution contributed to the high prevalence of metabolic diseases during childhood and implicates elevated lead burdens in the high prevalence of infant remains in Roman skeletal assemblages. This study has also shown the effectiveness of lead isotope analysis as a tool in archaeological migration studies. The successful establishment of baseline lead isotope ranges in previously unstudied regions of the Roman Empire has greatly enhanced our ability to identify the potential origins of isotopic outliers. Although this study has shown that anthropogenic lead isotope ratios are not country specific, the results have demonstrated that lead isotope ratios can differentiate between populations based on the orogenic age of the region in which an individual spent their childhood. This has improved our understanding of how anthropogenic lead isotope ratios in Roman individuals varies across a continent, and has demonstrated that lead isotope ratios are capable of discriminating between geographical regions of origin when other isotope system are not

    For mother, while she rocks the cradle

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    https://place.asburyseminary.edu/firstfruitsheritagematerial/1184/thumbnail.jp

    Introduction: when democracy goes 'wrong'

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    Improving Understanding of Service User Involvement and Identity: A Report of Research Findings

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    This report aims to improve understanding of good and bad experiences of service user involvement in the commissioning, design, delivery and evaluation of public sector services and the challenges faced by service users in negotiating their dual role of both being a service user representative and recipients of services. This report will be of interest to Disabled people who are service users and for people who design, manage and evaluate services in the public sector. This was a user-led piece of research designed and carried out by Disabled researchers. It arose directly out of a Disabled person’s own concern and was undertaken by a Disabled People’s Organisation

    Fast Food Industry Ethics: Can Employee\u27s Ethical Awareness Be Improved?

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    There has been recent evidence that the fast food industry is unethical. Training helps employees learn what they are responsible for doing. Can training on ethics increase ethical awareness? To determine if this can happen, a study was done with the local Taco Bueno employees. The workers were given a pre-training survey, then participated in a case study training session, and finally took a post-training survey. Ethical awareness increased, but the results were not statistically significant in the small study sample. Further study is recommended to learn how long the increase of ethical awareness will last and if future training is necessary

    The gender suicide paradox under gender role reversal during industrialisation

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    Objectives: To test for social structural effects on the gender paradox in suicidal behaviour. Methods: We analyzed newspaper reports of completed and attempted suicides in the Scottish city of Dundee during the mass movement of women into the paid labour force in the 19th and early 20th Centuries. We calculated rates of suicides per 100,000 of the male and female populations. Results: We found that the female suicide rate dropped during this time period, whereas there was only a significant reduction in attempted suicide amongst men. Conclusions: Our understanding, and action to prevent, suicide in men and women must take place in the context of our gendered social world

    The clinical effectiveness and cost-effectiveness of ablative therapies in the management of liver metastases: systematic review and economic evaluation

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    Background: Many deaths from cancer are caused by metastatic burden. Prognosis and survival rates vary, but survival beyond 5 years of patients with untreated metastatic disease in the liver is rare. Treatment for liver metastases has largely been surgical resection, but this is feasible in only approximately 20–30% of people. Non-surgical alternatives to treat some liver metastases can include various forms of ablative therapies and other targeted treatments.Objectives: To evaluate the clinical effectiveness and cost-effectiveness of the different ablative and minimally invasive therapies for treating liver metastases.Data sources: Electronic databases including MEDLINE, EMBASE and The Cochrane Library were searched from 1990 to September 2011. Experts were consulted and bibliographies checked.Review methods: Systematic reviews of the literature were undertaken to appraise the clinical effectiveness and cost-effectiveness of ablative therapies and minimally invasive therapies used for people with liver metastases. Studies were any prospective study with sample size greater than 100 participants. A probabilistic model was developed for the economic evaluation of the technologies where data permitted.Results: The evidence assessing the clinical effectiveness and cost-effectiveness of ablative and other minimally invasive therapies was limited. Nine studies of ablative therapies were included in the review; each had methodological shortcomings and few had a comparator group. One randomised controlled trial (RCT) of microwave ablation versus surgical resection was identified and showed no improvement in outcomes compared with resection. In two prospective case series studies that investigated the use of laser ablation, mean survival ranged from 41 to 58 months. One cohort study compared radiofrequency ablation with surgical resection and five case series studies also investigated the use of radiofrequency ablation. Across these studies the median survival ranged from 44 to 52 months. Seven studies of minimally invasive therapies were included in the review. Two RCTs compared chemoembolisation with chemotherapy only. Overall survival was not compared between groups and methodological shortcomings mean that conclusions are difficult to make. Two case series studies of laser ablation following chemoembolisation were also included; however, these provide little evidence of the use of these technologies in combination. Three RCTs of radioembolisation were included. Significant improvements in tumour response and time to disease progression were demonstrated; however, benefits in terms of survival were equivocal. An exploratory survival model was developed using data from the review of clinical effectiveness. The model includes separate analyses of microwave ablation compared with surgery and radiofrequency ablation compared with surgery and one of radioembolisation in conjunction with hepatic artery chemotherapy compared with hepatic artery chemotherapy alone. Microwave ablation was associated with an incremental cost-effectiveness ratio (ICER) of £3664 per quality-adjusted life-year (QALY) gained, with microwave ablation being associated with reduced cost but also with poorer outcome than surgery. Radiofrequency ablation compared with surgical resection for solitary metastases < 3 cm was associated with an ICER of –£266,767 per QALY gained, indicating that radiofrequency ablation dominates surgical resection. Radiofrequency ablation compared with surgical resection for solitary metastases ? 3 cm resulted in poorer outcomes at lower costs and a resultant ICER of £2538 per QALY gained. Radioembolisation plus hepatic artery chemotherapy compared with hepatic artery chemotherapy was associated with an ICER of £37,303 per QALY gained.Conclusions: There is currently limited high-quality research evidence upon which to base any firm decisions regarding ablative therapies for liver metastases. Further trials should compare ablative therapies with surgery, in particular. A RCT would provide the most appropriate design for undertaking any further evaluation and should include a full economic evaluation, but the group to be randomised needs careful selection.Source of funding: Funding for this study was provided by the Health Technology Assessment programme of the National Institute for Health Research

    Reducing hepatocyte injury and necrosis in response to paracetamol using non-coding RNAs

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    The liver performs multiple functions within the human body. It is composed of numerous cell types, which play important roles in organ physiology. Our study centers on the major metabolic cell type of the liver, the hepatocyte, and its susceptibility to damage during drug overdose. In these studies, hepatocytes were generated from a renewable and genetically defined resource. In vitro-derived hepatocytes were extensively profiled and exposed to varying levels of paracetamol and plasma isolated from liver-failure patients, with a view to identifying noncoding microRNAs that could reduce drug- or serum-induced hepatotoxicity. We identified a novel anti-microRNA, which reduced paracetamol-induced hepatotoxicity and glutathione depletion. Additionally, we identified a prosurvival role for anti-microRNA-324 following exposure to plasma collected from liver failure patients. We believe that these studies represent an important advance for the field, demonstrating the power of stem cell-derived systems to model human biology “in a dish” and identify novel noncoding microRNAs, which could be translated to the clinic in the future. SIGNIFICANCE: The liver performs vital functions within the human body and is composed of numerous cell types. The major metabolic cell type of the liver, the hepatocyte, is susceptible to damage during drug overdose. In these studies, hepatocytes were generated from a renewable resource and exposed to varying levels of paracetamol, with a view to identifying interventions that could reduce or attenuate drug-induced liver toxicity. A novel noncoding RNA that reduced paracetamol-induced hepatocyte toxicity was identified. These findings may represent an important advance for the field

    Managing the screen-viewing behaviours of 5-6 year old children:a qualitative analysis of parental strategies

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    OBJECTIVES: The present study used qualitative methods to: (1) examine the strategies that were used by parents of children aged 5–6 years to manage screen viewing; (2) identify key factors that affect the implementation of the strategies and (3) develop suggestions for future intervention content. DESIGN: Telephone interviews were conducted with parents of children aged 5–6 years participating in a larger study. Interviews were transcribed verbatim and analysed using an inductive and deductive content analysis. Coding and theme generation was iterative and refined throughout. SETTING: Parents were recruited through 57 primary schools located in the greater Bristol area (UK). PARTICIPANTS: 53 parents of children aged 5–6 years. RESULTS: Parents reported that for many children, screen viewing was a highly desirable behaviour that was difficult to manage, and that parents used the provision of screen viewing as a tool for reward and/or punishment. Parents managed screen viewing by setting limits in relation to daily events such as meals, before and after school, and bedtime. Screen-viewing rules were often altered depending on parental preferences and tasks. Inconsistent messaging within and between parents represented a source of conflict at times. Potential strategies to facilitate reducing screen viewing were identified, including setting screen-viewing limits in relation to specific events, collaborative rule setting, monitoring that involves mothers, fathers and the child, developing a family-specific set of alternative activities to screen viewing and developing a child's ability to self-monitor their own screen viewing. CONCLUSIONS: Managing screen viewing is a challenge for many parents and can often cause tension in the home. The data presented in this paper provide key suggestions of new approaches that could be incorporated into behaviour change programmes to reduce child screen viewing

    How parents perceive screen viewing in their 5-6 year old child within the context of their own screen viewing time:a mixed-methods study

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    Abstract Background Few studies have examined parental perceptions of their child’s screen-viewing (SV) within the context of parental SV time. This study qualitatively examined parents’ perceptions of their 5–6-year-old child’s SV within the context of their own quantitatively measured SV. Methods A mixed-methods design employed semi-structured telephone interviews, demographic and SV questionnaires, objectively-measured physical activity and sedentary time. Deductive content analysis was used to explore parents’ perceptions of, and concerns about, their child’s SV, and management of their child’s SV. Comparisons were made between parent-child dyads reporting low (<2-h per day) versus high SV time. Results Fifty-three parents were interviewed (94.3% mothers), with 52 interviews analysed. Fifteen parent-child dyads (28.8%) exceeded the 2-h SV threshold on both weekdays and weekend days; 5 parent-child dyads (9.6%) did not exceed this threshold. The remaining 32 dyads reported a combination of parent or child exceeding/not exceeding the SV threshold on either weekdays or weekend days. Three main themes distinguished the 15 parent-child dyads exceeding the SV threshold from the 5 dyads that did not: 1) parents’ personal SV-related views and behaviours; 2) the family SV environment; and 3) setting SV rules and limits. Parents in the dyads not exceeding the SV threshold prioritized and engaged with their children in non-SV behaviours for relaxation, set limits around their own and their child’s SV-related behaviours, and described an environment supportive of physical activity. Parents in the dyads exceeding the SV threshold were more likely to prioritise SV as a shared family activity, and described a less structured SV environment with minimal rule setting, influenced their child’s need for relaxation time. Conclusions The majority of parents in this study who exceeded the SV threshold expressed minimal concern and a relaxed approach to managing SV for themselves and their child(ren), suggesting a need to raise awareness amongst these parents about the time they spend engaging in SV. Parents may understand their SV-related parenting practices more clearly if they are encouraged to examine their own SV behaviours. Designing interventions aimed to create environments that are less supportive of SV, with more structured approaches to SV parenting strategies are warranted
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