1,266 research outputs found
Don't feedback in anger : enhancing student experience of feedback
This research explores three iterations of the delivery of audio feedback in relation to formative assessments at the School of Law, University of Sheffield. The evidence base includes similar practice at Edge Hill University and collaboration on good practice between the two institutions.
This paper will set out the context for the implementation of audio feedback, namely to help address the difficult issues experienced with feedback from non-engagement by the student in the whole feedback process, to a lack of utilization of formative feedback for 'feedforward' purposes. Qualitative comments from both students and staff experiencing this model of feedback will be drawn upon, which include references to the perceived benefits and challenges of this mode of feedback by both sets of stakeholders.
This paper will then take participants through the methods addressed to engage student with feedback on formative assessments, in order to create and encourage proper 'feedforward' to summative assessments, and to provide effective, focused, consistent and constructive feedback.
This paper in particular aims to show how the provision of audio feedback has the potential to greatly enhance the student learning experience, and can provide a more positive attitude generally to the giving, and receiving of feedback from both staff and students alike
Thermal radiation of various gravitational backgrounds
We present a simple and general procedure for calculating the thermal
radiation coming from any stationary metric. The physical picture is that the
radiation arises as the quasi--classical tunneling of particles through a
gravitational barrier. We show that our procedure can reproduce the results of
Hawking and Unruh radiation. We also show that under certain kinds of
coordinate transformations the temperature of the thermal radiation will change
in the case of the Schwarzschild black holes. In addition we apply our
procedure to a rotating/orbiting system and show that in this case there is no
radiation, which has experimental implications for the polarization of
particles in circular accelerators.Comment: 6 pages revtex, added references, publication version. To be
published IJMP
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US and UK Routes to Employment: Strategies to Improve Integrated Service Delivery to People with Disabilities
In this report, the authors examine the experience of the United States and United Kingdom in developing effective strategies for providing integrated service delivery. The report examines what works and what doesn't work, and provides a roadmap to improving services for individuals with disabilities. While more research is needed, the report identifies 12 strategies to strengthen integrated service delivery systems, and to assist individuals with disabilities in gaining and maintaining productive employment. Implementing these strategies can benefit clients, who have the opportunity to realize their potential more fully; the taxpayer, who is paying less for disability assistance; and society at large, which gains the productive skill of talented individuals
Human Population Studies of Transcriptome-wide Expression in Age-related Traits
This thesis presents novel investigations of three common ageing phenotypes in human population studies, using microarray technology to assess ‘transcriptome-wide’ expression in whole blood to identify mechanisms and biomarkers.
Muscle strength is related to frailty and is predictive of disability in older persons. I assessed the association between transcript abundance in the InCHIANTI peripheral blood samples (N=695) and muscle strength. One gene (CEBPB) passed the multiple testing criteria, and is involved in macrophage-mediated repair of damaged muscle. I extended this work with a meta-analysis of over 7,781 individuals in four collaborating cohorts; expression of over 222 genes were significantly associated with strength, less than half of which have previously been linked to muscle in the literature. CEBPB did not replicate in these younger cohorts.
I then performed the first human analysis of gene expression and cognitive function (and separately with decline in cognitive ability over nine years) in the InCHIANTI cohort (N=681), and one gene was identified; CCR2, a chemokine receptor. Evidence in mice has implicated this gene in the accumulation of β-amyloid and cognitive impairment.
Finally, in a collaborative project with the Framingham Heart Study I studied age-related inflammation – another hallmark of ageing - using a novel approach to ‘transcriptome-wide’ analysis; each transcript was assessed for the proportion of the association between age and interleukin-6 (IL6) that it statistically mediated. Very few of the genes associated with IL6 alone also mediated the relationship with age. Findings include; SLC4A10, the strongest mediator, not previously linked to inflammation, and interleukin-1 beta and perforin, a cytokine and cytotoxic protein, respectively.
These novel analyses highlight key molecular pathways associated with age-related phenotypes in whole blood and provide links between mouse models and humans. They provide biological insight and directions for future research
Pretreatment health measures and complications after surgical management of elderly women with breast cancer
Elderly patients with breast cancer are less likely to be offered surgery, partly owing to co-morbidities and reduced functional ability. However, there is little consensus on how best to assess surgical risk in this patient group.The ability of pretreatment health measures to predict complications was investigated in a prospective cohort study of a consecutive series of women aged at least 70 years undergoing surgery for operable (stage I-IIIa) breast cancer at 22 English breast units between 2010 and 2013. Data on treatment, surgical complications, health measures and tumour characteristics were collected by case-note review and/or patient interview. Outcome measures were all complications and serious complications within 30 days of surgery.The study included 664 women. One or more complications were experienced by 41·0 per cent of the patients, predominantly seroma or primary/minor infections. Complications were serious in 6·5 per cent. More extensive surgery predicted a higher number of complications, but not serious complications. Older age did not predict complications. Several health measures were associated with complications in univariable analysis, and were included in multivariable analyses, adjusting for type/extent of surgery and tumour characteristics. In the final models, pain predicted a higher count of complications (incidence rate ratio 1·01, 95 per cent c.i. 1·00 to 1·01; P = 0·004). Fatigue (odds ratio (OR) 1·02, 95 per cent c.i. 1·01 to 1·03; P = 0·004), low platelet count (OR 4·19, 1·03 to 17·12: P = 0·046) and pulse rate (OR 0·96, 0·93 to 0·99; P = 0·010) predicted serious complications.The risk of serious complications from breast surgery is low for older patients. Surgical decisions should be based on patient fitness rather than age. Health measures that predict surgical risk were identified in multivariable models, but the effects were weak, with 95 per cent c.i. close to unity.This paper presents independent research funded by theBreast Cancer Campaign (2008NOVPR35), a NationalInstitute for Health Research (NIHR) Programme Grantfor Applied Research (RP-PG-0608-10168) and researcharising from a Post Doctoral Fellowship supported by theNIHR (PDF/01/2008/027). The views expressed in thispublication are those of the authors and not necessarilythose of the NHS, the NIHR or the Department of Health
Telomere length and aging-related outcomes in humans: A Mendelian randomization study in 261,000 older participants.
This is the final version. Available from Wiley Open Access via the DOI in this recordInherited genetic variation influencing leukocyte telomere length provides a natural experiment for testing associations with health outcomes, more robust to confounding and reverse causation than observational studies. We tested associations between genetically determined telomere length and aging-related health outcomes in a large European ancestry older cohort. Data were from n = 379,758 UK Biobank participants aged 40-70, followed up for mean of 7.5 years (n = 261,837 participants aged 60 and older by end of follow-up). Thirteen variants strongly associated with longer telomere length in peripheral white blood cells were analyzed using Mendelian randomization methods with Egger plots to assess pleiotropy. Variants in TERC, TERT, NAF1, OBFC1, and RTEL1 were included, and estimates were per 250 base pairs increase in telomere length, approximately equivalent to the average change over a decade in the general white population. We highlighted associations with false discovery rate-adjusted p-values smaller than .05. Genetically determined longer telomere length was associated with lowered risk of coronary heart disease (CHD; OR = 0.95, 95% CI: 0.92-0.98) but raised risk of cancer (OR = 1.11, 95% CI: 1.06-1.16). Little evidence for associations were found with parental lifespan, centenarian status of parents, cognitive function, grip strength, sarcopenia, or falls. The results for those aged 60 and older were similar in younger or all participants. Genetically determined telomere length was associated with increased risk of cancer and reduced risk of CHD but little change in other age-related health outcomes. Telomere lengthening may offer little gain in later-life health status and face increasing cancer risks.the National Institute on Agin
Development and Evaluation of an Intervention to Support Family Caregivers of People with Cancer to Provide Home-based Care at the End of Life: a Feasibility Study
Purpose: To design and evaluate an intervention to address carers’ needs for practical information and support skills when caring for a person with cancer at end of life. Method: Phase I 29 carers were interviewed about need for practical information, support skills and their preferences for information delivery. The preferred format was a booklet. Phase 2 evaluated the booklet. 31 carers and 14 district nurses participated. Validated questionnaires: on perceptions of caregiving and carer health before and after the booklet was used and interviews with both carers and nurses were undertaken.24 carers completed both interviews. Quantitative data were coded using scale manuals and analysed using SPSSv20 and interview data was analysed thematically. Results: Carers were aged 31-82 and cared for people aged 50-92; 8 carers were male and 23 female; 20 cared for a partner, 8 for a parent and 1 for a sibling (2 undisclosed). Carers were positive about the booklet, however many carers would have liked the booklet earlier. Carers reported feeling more positive about caregiving, and more reassured and competent in their role. District nurses found the booklet useful and reported receiving fewer phone calls from study carers than others in similar situations. Conclusions: The booklet intervention was a source of reassurance to carers and it has the potential to be incorporated into everyday practice. The challenge is in when and how to distribute the booklet and more work is required on the timing of delivery in order to maximise the usefulness of booklet to carers
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