6,682 research outputs found
Consumers as tutors - legitimate teachers?
BACKGROUND: The aim of this study was to research the feasibility of training mental health
consumers as tutors for 4th year medical students in psychiatry.
METHODS: A partnership between a consumer network and an academic unit in Psychological
Medicine was formed to jointly develop a training package for consumer tutors and a curriculum
in interviewing skills for medical students. Student attitudes to mental health consumers were
measured pre and post the program. All tutorial evaluation data was analysed using univariate
statistics. Both tutors and students evaluated the teaching program using a 4 point rating scale. The
mean scores for teaching and content for both students and tutors were compared using an
independent samples t-test.
RESULTS: Consumer tutors were successfully trained and accredited as tutors and able to sustain
delivery of tutorials over a 4 year period. The study found that whilst the medical students started
with positive attitudes towards consumers prior to the program, there was a general trend
towards improved attitude across all measures. Other outcomes for tutors and students (both
positive and negative) are described.
CONCLUSIONS: Consumer tutors along with professional tutors have a place in the education of
medical students, are an untapped resource and deliver largely positive outcomes for students and
themselves. Further possible developments are described
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Responding to imposed job redesign : the evolving dynamics of work and identity in restructuring professional identity
Professionals are increasingly prevalent in organizations and are required to change their professional practice in response to requirements from employers. It is therefore important to understand how professionals respond when they are required to conduct work that does not match with their identity. We investigated this situation in an English public services organisation where a major work redesign initiative required professionals to engage in new tasks that they did not want to do. Based on our findings, we develop a process model of professional identity restructuring that includes the following four stages: (1) resisting identity change and mourning loss of previous work, (2) conserving professional identity and avoiding the new work, (3) parking professional identity and learning the new work, and (4) retrieving and modifying professional identity and affirming the new work. We contribute to the literature by showing how parking one’s professional identity facilitates the creation of liminal space, which enables the restructuring of one’s professional identity. Our model also explicates the dynamics between professional work and professional identity, showing how requirements for new professional work can lead to a new professional identity
Recent work at the World Data Centre for Geomagnetism (Edinburgh)
Observatory data holdings at the World Data Centre for Geomagnetism (Edinburgh) www.wdc.bgs.ac.uk include minute, hourly and annual mean values of the geomagnetic field from over 500 observatories since the early 19th century. We describe ongoing maintenance of this important data resource, data-checking procedures developed with global modelling in mind, and some recent additions and corrections
The glycaemic effects of single doses of Panax ginseng in young healthy volunteers
The results of two acute placebo-controlled, double-blind cross-over studies assessing the effect of Panax ginseng (G115) on blood glucose levels are reported. In study 1, thirty participants received three treatments: placebo; 200 mg G115; 400 mg G115. In study 2, twenty-seven participants received four treatments: placebo (0 mg ginseng and 30 mg saccharin); ginseng (200 mg ginseng and 30 mg saccharin); placebo–glucose (0 mg ginseng and 25 g oral glucose); ginseng–glucose (200 mg ginseng and 25 g oral glucose). Blood glucose levels were measured at baseline (at 09.00 hours after an overnight fast) and then 60, 90 (study 1 only) and 120 min post-dose. Both studies demonstrated that G115 alone significantly lowers fasting blood glucose levels. Conversely, in study 2 there was a significant drink × ginseng interaction suggesting opposing glycaemic effects of ginseng under fasting and raised blood glucose conditions. These data have implications for the use of ginseng in individuals with poor gluco-regulation
Experimental and numerical investigation of an air-to-water heat pipe-based heat exchanger
An experimental and analytical investigation was conducted on an air-to-water heat exchanger equipped with six wickless heat pipes (thermosyphons) charged with water as the working fluid. The flow pattern consisted of a double pass on the evaporator and condenser sections. The six thermosyphons were all made from carbon steel, measured 2m in length and were installed in a staggered arrangement.
The objectives of the reported experimental investigation were to analyse the effect of multiple air passes at different air inlet temperatures (100 to 250°C) and air mass flow rates (0.05 to 0.14kg/s) on the thermal performance of the heat exchanger unit including the heat pipes. The results were compared with a CFD model that assumed the heat pipes were solid rods with a constant conductivity. The conductivity of the pipes was extracted from modifications of correlations available in the literature based around the theory of Thermal Resistance. The results proved to be very accurate within 10% of the experimental values
Estimating the extremes in European geomagnetic activity
Rapidly changing geomagnetic field variations constitute a natural
hazard, for example in navigation and, through geomagnetically induced
currents, to power grids and pipeline networks. To understand this
hazard we have continuous magnetic measurements across the world
for typically less than 100 years. Much of the older data is also in
analogue form, or is only available digitally as hourly or daily magnetic
indices or mean levels. So it may not yet be clear what the true
extremes in geomagnetic variations are, particularly on time scales -
seconds to minutes - that are relevant for estimating the hazard to
technological systems.
We therefore use a number of decades of one minute samples of
magnetic data from observatories across Europe, together with the
technique of 'extreme value statistics’ to explore estimated maxima in
field variations in the horizontal strength and in the declination of the
field. These maxima are expressed in terms of the variations that might
be observed once every 100 and 200 years. We also examine the
extremes in one-minute rates of change of these field components over
similar time scales.
The results should find application in both hazard assessment for
technologies and in navigation applications. The results can also be
used to more rigorously answer the often-asked question: “just how
large can geomagnetic storms and field variations be?
New K-Indices from South Atlantic Observatories : Port Stanley and Ascension Island
Port Stanley and Ascension Island magnetic observatories have been in continuous operation since the early 1990's. These remote South Atlantic locations provide much needed coverage in the global network of geomagnetic observatories and help to monitor the South Atlantic Anomaly. To enhance the production of longitude-sector planetary magnetic activity indices there is a requirement for local 3-hourly K-index values from Port Stanley (PST) observatory. We describe the process followed to establish an automated routine for the derivation of the indices and we assess the congruence of the indices to those available from other suitably located observatories. A similar procedure has been followed for Ascension Island observatory although this is not shown here
B vitamins and cognitive performance in older adults: Review
A copious amount of scientific scrutiny has been dedicated to documenting typical and atypical human ageing, with a substantial body of work focusing upon the impact of lifestyle choices. One such lifestyle choice is that of diet and, in particular, micronutrient ingestion. Epidemiological studies have reported positive associations between B vitamin status and cognitive function, including negative associations between biological markers (i.e., homocysteine) of dysregulated one-carbon metabolism and cognitive function. This has led to a surge of randomised control trials (RCTs) investigations into B vitamin therapy. However, results have continuingly failed to show beneficial behavioural effects. Despite this, results reliably show treatment-related increases in B vitamin level and decreases in homocysteine level—both of which have been identified as risk factors for atypical ageing. In this paper we argue that it would be premature to conclude that B vitamin therapy has no potential and that more research is needed to systematically investigate the optimal dose, the therapeutic “window,” and individual differences in therapy responders and nonresponders. We start with a brief look at one-carbon metabolism and then consider the evidence from epidemiological studies and RCTs in relation to three specific B vitamins: folic acid (B9), pyridoxine (B6), and cobamides (B12)
Panax ginseng has no effect on indices of glucose regulation following acute or chronic ingestion in healthy volunteers
In the absence of effective pharmacotherapy for diabetes there has been an increase in the use of, and research into, alternative treatment strategies. These include exercise, dietary interventions and the use of supplements including extracts of ginseng. Two separate, placebo-controlled, double-blind, cross-over studies investigating the effects of chronic ingestion of Panax ginseng (study 1 used G115, study 2 used Cheong Kwan Jang) on glycated Hb (HbA1c; study 1, n 18; study 2, n 11), fasting plasma insulin (study 1, n 17; study 2, n 12), fasting plasma glucose and postprandial response (following breakfast) (study 1, n 23; study 2, n 14) in healthy volunteers are reported. In both studies it was found that Panax ginseng had no effect on any gluco-regulatory parameter investigated. These results are not consistent with those reported for a diabetic sample (albeit using slightly different outcomes). These results would suggest that chronic use of Panax ginseng by non-diabetic individuals will have little long-term effect on glucose regulation. The benefits to glucose regulation associated with long-term ginseng use may only be present in populations with compromised glucose control; however, further research is needed to confirm such a speculation
What Were They Thinking? The Federal Reserve In The Run-Up To The 2008 Financial Crisis
The Federal Reserve (the Fed) is responsible for monitoring, analyzing and ultimately stabilizing US financial markets. It also has unrivalled access to economic data, high-level connections to financial institutions, and a large staff of professionally trained economists. Why then was it apparently unconcerned by the financial developments that are now widely recognized to have caused the 2008 financial crisis? Using a wide range of Fed documents from the pre-crisis period, particularly the transcripts of meetings of the Federal Open Market Committee (FOMC), this paper shows that Fed policymakers and staff were aware of relevant developments in financial markets, but paid infrequent attention to them and disregarded significant systemic threats. Drawing on literatures in economics, political science and sociology, the paper then demonstrates that the Fed\u27s intellectual paradigm in the years before the crisis focused on ‘post hoc interventionism’ – the institution\u27s ability to limit the fallout should a systemic disturbance arise. Further, the paper argues that institutional routines played a crucial role in maintaining this paradigm and in contributing to the Fed\u27s inadequate attention to the warning signals in the pre-crisis period
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