70 research outputs found
Emotion Recognition Ability in Older Adults
This thesis investigated the extent of age-related emotion recognition deficits across several emotions, presentations, and stimuli types. Evidence suggests that older adults (OAs) are less able than younger adults (YAs) to recognise emotions (Ruffman et al., 2008). However, clarity regarding the breadth of these age-related emotion recognition deficits may be thwarted by difficulties in comparing findings due to methodological variations and sample differences. The current research sought to address some of these issues by comparing the emotion recognition ability of OAs (59 to 84 years) to those of YAs (18 to 29 years). Phase 1 of the research used a series of tightly controlled experiments to measure emotion recognition (for happiness, sadness, fear, anger, disgust) and non-emotion processing from static faces, non-verbal vocalisations, and single words. Phase 2 employed unimodal and cross-modal presentations of dynamic faces and prosodic sentences to measure recognition of the same basic emotions as well as a different set of discrete emotions (joy, amusement, pride, anger, and surprise). In terms of deficits the only emotion for which OAs showed a consistent impairment was anger as seen when static faces were used, when all presentation types were compared in Phase 1 and in one experiment in Phase 2. Moreover there is evidence to suggest that this deficit for anger is a specific function of the older-older (70 years+) adults' performance. OAs were also impaired in recognising joy from prosodic sentences and older-older adults in recognising sad from faces. More generally OAs had a deficit in processing auditory information and older-old adults in processing static faces irrespective of the emotion content. In contrast, OAs showed a superior ability than YAs to recognise emotion from words (particularly sad) and disgust when all presentation types were compared in Phase 1. It is concluded, therefore, that OAs' emotion recognition deficits are not as widespread as previously reported and in many cases performance is maintained and even improves in later years
Women's experience of wearing a portable fetal-electrocardiogram device to monitor small-for-gestational age fetus in their home environment
OBJECTIVE: To determine the acceptability, to women, of wearing a portable fetal electrocardiogram recording device at different stages of pregnancy and to gain insight into their experience of its use for long-periods of monitoring of small-for-gestational fetuses in the home environment. METHODS: A qualitative study using both a questionnaire and focus group involving women with singleton pregnancy >24âweeks gestation, no evidence of fetal malformation and an estimated fetal weight below 10th gestational centile on ultrasound scan. Fetal heart rate recordings were collected for up to 20âh. RESULTS: In total, 59 questionnaires were completed; 35 after wearing the monitor for the first time and an additional 24 from the women who wore the device for a second time. Six women participated in the focus group; the principal theme identified related to the practicality of the fetal electrocardiogram device. Other themes identified were the discomfort that resulted from wearing the monitor and the reassurance provided in knowing that the baby's heart rate was being monitored. CONCLUSION: Long-term ambulatory fetal electrocardiogram monitoring is an acceptable method of monitoring small-for-gestational fetuses. Overall, women concluded that benefits of wearing the device outweighed any discomfort it caused
Optimal modelling and experimentation for the improved sustainability of microfluidic chemical technology design
Optimization of the dynamics and control of chemical processes holds the promise of improved sustainability for chemical technology by minimizing resource wastage. Anecdotally, chemical plant may be substantially over designed, say by 35-50%, due to designers taking account of uncertainties by providing greater flexibility. Once the plant is commissioned, techniques of nonlinear dynamics analysis can be used by process systems engineers to recoup some of this overdesign by optimization of the plant operation through tighter control. At the design stage, coupling the experimentation with data assimilation into the model, whilst using the partially informed, semi-empirical model to predict from parametric sensitivity studies which experiments to run should optimally improve the model. This approach has been demonstrated for optimal experimentation, but limited to a differential algebraic model of the process. Typically, such models for online monitoring have been limited to low dimensions.
Recently it has been demonstrated that inverse methods such as data assimilation can be applied to PDE systems with algebraic constraints, a substantially more complicated parameter estimation using finite element multiphysics modelling. Parametric sensitivity can be used from such semi-empirical models to predict the optimum placement of sensors to be used to collect data that optimally informs the model for a microfluidic sensor system. This coupled optimum modelling and experiment procedure is ambitious in the scale of the modelling problem, as well as in the scale of the application - a microfluidic device. In general, microfluidic devices are sufficiently easy to fabricate, control, and monitor that they form an ideal platform for developing high dimensional spatio-temporal models for simultaneously coupling with experimentation.
As chemical microreactors already promise low raw materials wastage through tight control of reagent contacting, improved design techniques should be able to augment optimal control systems to achieve very low resource wastage. In this paper, we discuss how the paradigm for optimal modelling and experimentation should be developed and foreshadow the exploitation of this methodology for the development of chemical microreactors and microfluidic sensors for online monitoring of chemical processes. Improvement in both of these areas bodes to improve the sustainability of chemical processes through innovative technology. (C) 2008 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved
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Standardising multi-agency safeguarding hubs (MASH): Building a framework to effectively identify and manage risk
MASH has been a feature of safeguarding practices in England and Wales since 2011, bringing safeguarding agencies together to effectively share information and prevent organizational silos. Core agencies include the police, social care, and health, with key features of co-location, joint decision-making and co-ordination. A standardised definition for MASH implementation does not exist, and this lack of a clear definition has meant various structures have emerged, impacting on safeguarding practices. This policy brief draws on workshops with a range of safeguarding practitioners between May and July 2022, about the challenges of collaborative working practices and how MASH can become more standardised. Whilst national standardisation is required, there needs to be flexibility when implementing guidelines, so that practices and processes reflect regional needs and resources
Standardising multi-agency safeguarding hubs (MASH): Building a framework to effectively identify and manage risk
MASH has been a feature of safeguarding practices in England and Wales since 2011, bringing safeguarding agencies together to effectively share information and prevent organizational silos. Core agencies include the police, social care, and health, with key features of co-location, joint decision-making and co-ordination. A standardised definition for MASH implementation does not exist, and this lack of a clear definition has meant various structures have emerged, impacting on safeguarding practices. This policy brief draws on workshops with a range of safeguarding practitioners between May and July 2022, about the challenges of collaborative working practices and how MASH can become more standardised. Whilst national standardisation is required, there needs to be flexibility when implementing guidelines, so that practices and processes reflect regional needs and resources
A deterministic oscillatory model of microtubule growth and shrinkage for differential actions of short chain fatty acids.
Short chain fatty acids (SCFA), principally acetate, propionate, butyrate and valerate, are produced in pharmacologically relevant concentrations by the gut microbiome. Investigations indicate that they exert beneficial effects on colon epithelia. There is increasing interest in whether different SCFAs have distinct functions which may be exploited for prevention or treatment of colonic diseases including colorectal cancer (CRC), inflammatory bowel disease and obesity. Based on experimental evidence, we hypothesised that odd-chain SCFAs may possess anti-mitotic capabilities in colon cancer cells by disrupting microtubule (MT) structural integrity via dysregulation of ÎČ-tubulin isotypes. MT dynamic instability is an essential characteristic of MT cellular activity. We report a minimal deterministic model that takes a novel approach to explore the hypothesised pathway by triggering spontaneous oscillations to represent MT dynamic behaviour. The dynamicity parameters in silico were compared to those reported in vitro. Simulations of untreated and butyrate (even-chain length) treated cells reflected MT behaviour in interphase or untreated control cells. The propionate and valerate (odd-chain length) simulations displayed increased catastrophe frequencies and longer periods of MT-fibre shrinkage. Their enhanced dynamicity was dissimilar to that observed in mitotic cells, but parallel to that induced by MT-destabilisation treatments. Antimicrotubule drugs act through upward or downward modulation of MT dynamic instability. Our computational modelling suggests that metabolic engineering of the microbiome may facilitate managing CRC risk by predicting outcomes of SCFA treatments in combination with AMDs
The effect of 24-week belimumab treatment withdrawal followed by treatment restart in patients with SLE: an open-label, non-randomised 52-week study
Abstract
Background
Treatment goals for patients with systemic lupus erythematosus (SLE) include minimising disease activity and reducing the risk of flares. Although belimumab is effective at reducing disease activity and risk of severe flares, it was previously unknown what the clinical effects were upon treatment discontinuation. The objective of this study was to assess the impact of temporary withdrawal of intravenous (IV) belimumab in patients with SLE.
Methods
This multicentre, open-label, non-randomised, 52-week study (GSK Study BEL116027; NCT02119156) recruited patients with SLE and stable low disease activity, of whom those on belimumab 10 mg/kg IV plus standard therapy either discontinued belimumab for 24 weeks and then restarted belimumab 10 mg/kg IV every 4 weeks (q4w) for 28 weeks (treatment holiday [TH] group), or continued on belimumab 10 mg/kg IV plus standard therapy q4w for 52 weeks (treatment continuation [TC] group). The primary endpoint was median time to first Safety of Estrogens in Lupus Erythematosus National Assessment-SLE Disease Activity Index (SELENA-SLEDAI) Flare Index flare. Secondary and other endpoints included rate of any flare, time to severe flare, time to renal flare and rebound (SELENA-SLEDAI score exceeding parent study baseline). Data on rebound phenomenon in patients with any disease level of SLE who had permanently withdrawn from further belimumab treatment (long-term discontinuation group [LTD]) were also assessed. Safety was assessed.
Results
The primary endpoint was not evaluable in the TH (n = 12) and TC (n = 29) groups as fewer than half of patients flared. Unadjusted flare rates per patient-year were 1.0 during treatment discontinuation and 0.3 during treatment restart (0.6 overall) in the TH group and 0.6 in the TC group; there were no severe or renal flares. No TH patients rebounded; 2 (6.9%) TC patients rebounded; 2 (5.1%) patients in the LTD group rebounded. There were no new safety signals.
Conclusions
Twenty-four-week belimumab discontinuation did not appear to increase the risk of flares or rebound in patients with low SLE disease activity; flare rates were low in both groups. Further studies may help to fully determine the effect of belimumab discontinuation.
Trial registration
ClinicalTrials.gov,
NCT02119156
. Registered on April 21, 2014
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