305 research outputs found
The consequences of perceived age discrimination amongst older police officers : is social support a buffer ?
This paper considers the possible psychological consequences of perceived agediscrimination, and the possible buffering effect of social support. Findings, based on a studyof perceived age discrimination amongst police officers in the North of England, suggest thatage discrimination acts as a stressor, with officers experiencing negative effects of perceivedage discrimination on job and life satisfaction, perceived power and prestige of the job, andaffective and normative commitment, along with positive effects on withdrawal cognitionsand continuance commitment. For work-based social support, there were positive maineffects on job and satisfaction, power and prestige of the job, and affective and normativecommitment, and a negative main effect on withdrawal cognitions. However, there were nosignificant moderating effects for work-based social support, and we found the anticipatedbuffering effect for non-work-based social support only for life satisfaction, with reversebuffering for job satisfaction and normative commitment. The limitations and implications ofthe study are discussed
Problematic Attachment to Social Media: Lived Experience and Emotions
People's relationship with social media and their contacts on them can
be problematic. People may engage in social media in a compulsive and hasty
style to increase their popularity, reputation and enhance their self-esteem. However, this problematic attachment to social media may result in side effects on
peopleâs well-being. Therefore, people may need assistance to reform their relationship with social media in a way that it maintains different aspects of their
online interaction, such as empathy with others and maintaining their popularity
and relatedness. In order to provide the tools and methods to support people in
reforming their relationship with social media, towards a healthier usage style,
we need to understand the experience of people who suffer a problematic relationship with them. Most studies on the topic are based on methods which would
lack ecological validity, e.g. using surveys and interviews, and do not capture or
imitate such a digital experience as lived. In an attempt to better explore how
people experience problematic attachment and relationship with social media,
and their associated emotions, we conducted a multistage qualitative method
study including a diary study to gather lived experience. We aim to inform both
users and designers towards a managed and tool-supported reform of their problematic relationship with social media and, ultimately, having a healthier online
interaction
Variable responses of human microbiomes to dietary supplementation with resistant starch
Abstract
Background
The fermentation of dietary fiber to various organic acids is a beneficial function provided by the microbiota in the human large intestine. In particular, butyric acid contributes to host health by facilitating maintenance of epithelial integrity, regulating inflammation, and influencing gene expression in colonocytes. We sought to increase the concentration of butyrate in 20 healthy young adults through dietary supplementation with resistant starch (unmodified potato starchâresistant starch (RS) type 2).
Methods
Fecal samples were collected from individuals to characterize butyrate concentration via liquid chromatography and composition of the microbiota via surveys of 16S rRNA-encoding gene sequences from the Illumina MiSeq platform. Random Forest and LEfSe analyses were used to associate responses in butyrate production to features of the microbiota.
Results
RS supplementation increased fecal butyrate concentrations in this cohort from 8 to 12 mmol/kg wet feces, but responses varied widely between individuals. Individuals could be categorized into three groups based upon butyrate concentrations before and during RS: enhanced, high, and low (nâ=â11, 3, and 6, respectively). Fecal butyrate increased by 67 % in the enhanced group (from 9 to 15 mmol/kg), while it remained â„11 mmol/kg in the high group and â€8 mmol/kg in the low group. Microbiota analyses revealed that the relative abundance of RS-degrading organismsâBifidobacterium adolescentis or Ruminococcus bromiiâincreased from ~2 to 9 % in the enhanced and high groups, but remained at ~1.5 % in the low group. The lack of increase in RS-degrading bacteria in the low group may explain why there was no increase in fecal butyrate in response to RS. The microbiota of individuals in the high group were characterized by an elevated abundance of the butyrogenic microbe Eubacterium rectale (~6 % in high vs. 3 % in enhanced and low groups) throughout the study.
Conclusions
We document the heterogeneous responses in butyrate concentrations upon RS supplementation and identify characteristic of the microbiota that appear to underlie this variation. This study complements and extends other studies that call for personalized approaches to manage beneficial functions provided by gut microbiomes.http://deepblue.lib.umich.edu/bitstream/2027.42/134598/1/40168_2016_Article_178.pd
Marriage âsharia styleâ: everyday practices of Islamic morality in England
The growing visibility of Islam in the public spaces of Western societies is often interpreted in the media as a sign of Muslim radicalisation. This article questions this postulate by examining the flourishing Muslim marriage industry in the UK. It argues that these âhalalâ services, increasingly popular among the young generation of British Muslims, reflect the semantic shifting of categories away from the repertoire of Islamic jurisprudence to cultural and identity labels visible in public space. Informed by long-term ethnographic fieldwork in the British field of Islamic law, this article examines a Muslim speed-dating event, which took place in central London in 2013. It investigates how Islamic morality is maintained and negotiated in everyday social interactions rather than cultivated via discipline and the pursuit of virtuous dispositions. Using Goffmanâs âframe analysisâ and his interpretation of the social as a space of âperformancesâ as well as recent anthropological reflections on âordinary ethicsâ (Lambek) and âeveryday Islamâ (Schielke, Osella and Soares), it examines the potential for such practices to define the contours of a new public culture where difference is celebrated as a form of distinction
The Consequences of Perceived Age Discrimination Amongst Older Police Officers: Is Social Support a Buffer?
A field and video-annotation guide for baited remote underwater stereo-video surveys of demersal fish assemblages
Researchers TL, BG, JW, NB and JM were supported by the Marine Biodiversity Hub through funding from the Australian Government's National Environmental Science Program. Data validation scripts and GlobalArchive.org were supported by the Australian Research Data Commons, the Gorgon-Barrow Island Gorgon Barrow Island Net Conservation Benefits Fund, administered by the Government of Western Australia and the BHP/UWA Biodiversity and Societal Benefits of Restricted Access Areas collaboration.1. Baited remote underwater stereo-video systems (stereo-BRUVs) are a popular tool to sample demersal fish assemblages and gather data on their relative abundance and body-size structure in a robust, cost-effective, and non-invasive manner. Given the rapid uptake of the method, subtle differences have emerged in the way stereo-BRUVs are deployed and how the resulting imagery are annotated. These disparities limit the interoperability of datasets obtained across studies, preventing broad-scale insights into the dynamics of ecological systems. 2. We provide the first globally accepted guide for using stereo-BRUVs to survey demersal fish assemblages and associated benthic habitats. 3. Information on stereo-BRUV design, camera settings, field operations, and image annotation are outlined. Additionally, we provide links to protocols for data validation, archiving, and sharing. 4. Globally, the use of stereo-BRUVs is spreading rapidly. We provide a standardised protocol that will reduce methodological variation among researchers and encourage the use of Findable, Accessible, Interoperable, and Reproducible (FAIR) workflows to increase the ability to synthesise global datasets and answer a broad suite of ecological questions.Publisher PDFPeer reviewe
The contribution of macroalgae-associated fishes to small-scale tropical reef fisheries
Macroalgae-dominated reefs are a prominent habitat in tropical seascapes that support a diversity of fishes, including fishery target species. To what extent, then, do macroalgal habitats contribute to small-scale tropical reef fisheries? To address this question we: (1) Quantified the macroalgae-associated fish component in catches from 133 small-scale fisheries, (2) Compared life-history traits relevant to fishing (e.g. growth, longevity) in macroalgal and coral-associated fishes, (3) Examined how macroalgae-associated species can influence catch diversity, trophic level and vulnerability and (4) Explored how tropical fisheries change with the expansion of macroalgal habitats using a case study of fishery-independent data for Seychelles. Fish that utilised macroalgal habitats comprise 24% of the catch, but very few fished species relied entirely on macroalgal or coral habitats post-settlement. Macroalgal and coral-associated fishes had similar life-history traits, although vulnerability to fishing declined with increasing contribution of macroalgae association to the catch, whilst mean trophic level and diversity peaked when macroalgal-associated fish accounted for 20%-30% of catches. The Seychelles case study revealed similar total fish biomass on macroalgal and coral reefs, although the biomass of primary target species increased as macroalgae cover expanded. Our findings reinforce that multiple habitat types are needed to support tropical fishery stability and sustainability. Whilst coral habitats have been the focus of tropical fisheries management, we show the potential for macroalgae-associated fish to support catch size and diversity in ways that reduce vulnerability to overfishing. This is pertinent to seascapes where repeated disturbances are facilitating the replacement of coral reef with macroalgal habitats
Youth, terrorism and education: Britainâs Prevent programme
Since the 7/7 bombings of July 2005, Britain has experienced a domestic terror threat posed by a small minority of young Muslims. In response, Britain has initiated âPreventâ, a preventative counter-terrorism programme. Building on previous, general critiques of Prevent, this article outlines and critically discusses the ways in which Prevent has approached young Muslims and their educational institutions. The article argues that, rather than trust in broader and non-stigmatising processes of anti-extremist education, the police-led Prevent has âengagedâ with and surveilled young Muslims. Within Prevent there is little evidence of educational processes that explicitly build youth resilience against extremism. Instead, Muslim youth are viewed as both ârisky and at riskâ (Heath-Kelly, 2013), âat riskâ of catching the terrorist disease, with the contested model of âradicalisationâ and child protection concepts utilised to portray risks of exploitation by Islamist extremists that necessitate a deepening process of education-based surveillance. The article identifies non-stigmatising alternatives to the approach of Prevent, approaches of anti-extremism education that learn from previously problematic anti-racist educational efforts with white young people. This enables the article to advocate for enhanced human rights-based approaches of citizenship education (admittedly, in themselves contested) with all young people as the most effective way of building individual and collective youth resilience against terrorist ideologies
Promoting help-seeking in response to symptoms amongst primary care patients at high risk of lung cancer: a mixed method study
Background: Lung cancer symptoms are vague and difficult to detect. Interventions are needed to promote early diagnosis, however health services are already pressurised. This study explored symptomology and help-seeking behaviours of primary care patients at âhigh-riskâ of lung cancer (â„50 years old, recent smoking history), to inform targeted interventions.
Methods: Mixed method study with patients at eight general practitioner (GP) practices across south England. Study incorporated: postal symptom questionnaire; clinical records review of participant consultation behaviour 12 months pre- and post-questionnaire; qualitative participant interviews (n = 38) with a purposive sample.
Results: A small, clinically relevant group (n = 61/908, 6.7%) of primary care patients was identified who, despite reporting potential symptoms of lung cancer in questionnaires, had not consulted a GP â„12 months. Of nine symptoms associated with lung cancer, 53.4% (629/1172) of total respondents reported â„1, and 35% (411/1172) reported â„2. Most participants (77.3%, n = 686/908) had comorbid conditions; 47.8%, (n = 414/908) associated with chest and respiratory symptoms. Participant consulting behaviour significantly increased in the 3-month period following questionnaire completion compared with the previous 3-month period (p = .002), indicating questionnaires impacted upon consulting behaviour. Symptomatic non-consulters were predominantly younger, employed, with higher multiple deprivation scores than their GP practice mean. Of symptomatic non-consulters, 30% (18/61) consulted â€1 month post-questionnaire, with comorbidities subsequently diagnosed for five participants. Interviews (n = 39) indicated three overarching differences between the views of consulting and non-consulting participants: concern over wasting their own as well as GP time; high tolerance threshold for symptoms; a greater tendency to self-manage symptoms.
Conclusions: This first study to examine symptoms and consulting behaviour amongst a primary care population at âhigh- riskâ of lung cancer, found symptomatic patients who rarely consult GPs, might respond to a targeted symptom elicitation intervention. Such GP-based interventions may promote early diagnosis of lung cancer or other comorbidities, without burdening already pressurised services
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