326 research outputs found
Does use of touch screen computer technology improve classroom engagement in children?
Many studies have shown that the use of technology in the classroom may influence pupil
engagement. Despite the recent widespread use of tablet technology, however, very little research has
been carried out into their use in a primary school setting. We investigated the use of tablet computers,
specifically Apple’s ‘iPad’, in an upper primary school setting with regard to children’s engagement.
Cognitive, emotional and general engagement was higher in lessons based on iPads than those which
were not. There was no difference in behavioral engagement. Of particular significance was the increase
in engagement seen in boys, which resulted in their engagement levels increasing to levels comparable
to those seen in girls. These findings suggest that tablet technology has potential as a tool in the
classroom setting
A qualitative study into how clinicians within a Child and Adolescent Mental Health Service think about Gender Dysphoria and what their experiences are of working therapeutically with children and young people suffering from it.
Over the last decade a significant increase has occurred in referrals to the specialist Gender Identity Development Service (GIDS) located at the Tavistock and Portman NHS Foundation Trust. However, research into Gender Dysphoria (GD) specifically within children and young people (0-18 years) has not seen the same rise. In addition, more young people suffering with GD are also seen within Child and Adolescent Mental Health Services (CAMHS) across the United Kingdom. This study therefore aimed to explore how clinicians within a CAMHS think about GD and what their experiences are of working therapeutically with children and young people suffering from it.
A literature review was conducted to enable learning and understanding of what theoretical and empirical knowledge has already been established within the field of GD. Special focus was placed on the psychoanalytic literature, due to the professional background of the researcher, alongside available empirical studies that consider the experiences of professionals working with individuals with GD.
Second, a small-scale qualitative study was performed to explore the research questions, semi-structured interviews were conducted with twelve CAMHS clinicians from various professional backgrounds. The data analysis, utilising thematic analysis, yielded 12 themes and 45 sub-themes which are outlined, described and discussed in detail.
The findings highlight the complexity, confusion and constant changes in diagnostic terms and definition of GD as well as the therapeutic work with young people suffering from it. One main finding was that possessing both theoretical and practical experiences is key, which the professionals interviewed stressed needs to be shared with others. A great appetite for further training, knowledge and discussions was noted alongside and in order to address the uncertainty being reported by the participants. The study concludes that, further research and training is required in the field of child and young people with GD
Effects of colour-coded compartmentalised syringe trays on anaesthetic drug error detection under cognitive load
oai:repository.derby.ac.uk:q4qv7Background
Anaesthetic drug administration is complex, and typical clinical environments can entail significant cognitive load. Colour-coded anaesthetic drug trays have shown promising results for error identification and reducing cognitive load.
Methods
We used experimental psychology methods to test the potential benefits of colour-coded compartmentalised trays compared with conventional trays in a simulated visual search task. Effects of cognitive load were also explored through an accompanying working memory-based task. We hypothesised that colour-coded compartmentalised trays would improve drug-detection error, reduce search time, and reduce cognitive load. This comprised a cognitive load memory task presented alongside a visual search task to detect drug errors.
Results
All 53 participants completed 36 trials, which were counterbalanced across the two tray types and 18 different vignettes. There were 16 error-present and 20 error-absent trials, with 18 trials presented for each preloaded tray type. Syringe errors were detected more often in the colour-coded trays than in the conventional trays (91% vs 83%, respectively; P=0.006). In signal detection analysis, colour-coded trays resulted in more sensitivity to the error signal (2.28 vs 1.50, respectively; P<0.001). Confidence in response accuracy correlated more strongly with task performance for the colour-coded tray condition, indicating improved metacognitive sensitivity to task performance (r=0.696 vs r=0.447).
Conclusions
Colour coding and compartmentalisation enhanced visual search efficacy of drug trays. This is further evidence that introducing standardised colour-coded trays into operating theatres and procedural suites would add an additional layer of safety for anaesthetic procedures
Tachycardia-bradycardia syndrome: Electrophysiological mechanisms and future therapeutic approaches (Review)
Sick sinus syndrome (SSS) encompasses a group of disorders whereby the heart is unable to perform its pacemaker function, due to genetic and acquired causes. Tachycardia‑bradycardia syndrome (TBS) is a complication of SSS characterized by alternating tachycardia and bradycardia. Techniques such as genetic screening and molecular diagnostics together with the use of pre-clinical models have elucidated the electrophysiological mechanisms of this condition. Dysfunction of ion channels responsible for initiation or conduction of cardiac action potentials may underlie both bradycardia and tachycardia; bradycardia can also increase the risk of tachycardia, and vice versa. The mainstay treatment option for SSS is pacemaker implantation, an effective approach, but has disadvantages such as infection, limited battery life, dislodgement of leads and catheters to be permanently implanted in situ. Alternatives to electronic pacemakers are gene‑based bio‑artificial sinoatrial node and cell‑based bio‑artificial pacemakers, which are promising techniques whose long-term safety and efficacy need to be established. The aim of this article is to review the different ion channels involved in TBS, examine the three‑way relationship between ion channel dysfunction, tachycardia and bradycardia in TBS and to consider its current and future therapies.GT was supported by the BBSRC and YC is supported by the ESRC for their PhD studies. GT is grateful to the Croucher Foundation of Hong Kong for supporting his clinical assistant professorship
Electrophysiological Mechanisms of Brugada Syndrome: Insights from Pre-clinical and Clinical Studies.
This is the final version of the article. It first appeared from Frontiers via https://doi.org/10.3389/fphys.2016.00467Brugada syndrome (BrS), is a primary electrical disorder predisposing affected individuals to sudden cardiac death via the development of ventricular tachycardia and fibrillation (VT/VF). Originally, BrS was linked to mutations in the SCN5A, which encodes for the cardiac Na+ channel. To date, variants in 19 genes have been implicated in this condition, with 11, 5, 3, and 1 genes affecting the Na+, K+, Ca2+, and funny currents, respectively. Diagnosis of BrS is based on ECG criteria of coved- or saddle-shaped ST segment elevation and/or T-wave inversion with or without drug challenge. Three hypotheses based on abnormal depolarization, abnormal repolarization, and current-load-mismatch have been put forward to explain the electrophysiological mechanisms responsible for BrS. Evidence from computational modeling, pre-clinical, and clinical studies illustrates that molecular abnormalities found in BrS lead to alterations in excitation wavelength (λ), which ultimately elevates arrhythmic risk. A major challenge for clinicians in managing this condition is the difficulty in predicting the subset of patients who will suffer from life-threatening VT/VF. Several repolarization risk markers have been used thus far, but these neglect the contributions of conduction abnormalities in the form of slowing and dispersion. Indices incorporating both repolarization and conduction and based on the concept of λ have recently been proposed. These may have better predictive values than the existing markers.GT received a BBSRC Doctoral CASE Studentship at the University of Cambridge and thanks the Croucher Foundation of Hong Kong for the support of his Clinical Assistant Professorship. YC is supported by the ESRC for her Ph.D. studies at the University of Cambridge. BY received funding from the Research Grant Council of Hong Kong for his research
Word processing as an act of collaboration: description of a media artwork
As described in an earlier contribution to the JMP (Photography as an act of collaboration - Vol 15, Issue 3), my research explores the possibilities and implications of treating the camera and the photographic process as an active collaborator in the creation of scenes, events and ‘moments’ that did not exist until brought into being by the act of photographing them. The media artwork described here is the result of an experiment to explore the possibility of establishing a similarly collaborative relationship with the ‘agency’ of word-processing software that I have endeavoured to establish with the medium of photography. Despite comprehensively stripping the original text of both sense and sequence, the resulting text not only retains an uncanny degree of consistency with both the style and meaning of the original, but also reveals insights which had been only latent within the original. The result would appear to reinforce the findings of my previous research in photographic practice: that, by giving up conscious, rational control over the means of expression, we can (sometimes) create the conditions necessary for a constructive and often illuminating dialogue with the deus ex machina
Functional polymorphism in ABCA1 influences age of symptom onset in coronary artery disease patients
ATP-binding-cassette-transporter-A1 (ABCA1) plays a pivotal role in intracellular cholesterol removal, exerting a protective effect against atherosclerosis. ABCA1 gene severe mutations underlie Tangier disease, a rare Mendelian disorder that can lead to premature coronary artery disease (CAD), with age of CAD onset being two decades earlier in mutant homozygotes and one decade earlier in heterozygotes than in mutation non-carriers. It is unknown whether common polymorphisms in ABCA1 could influence age of symptom onset of CAD in the general population. We examined common promoter and non-synonymous coding polymorphisms in relation to age of symptom onset in a group of CAD patients (n = 1164), and also carried out in vitro assays to test effects of the promoter variations on ABCA1 promoter transcriptional activity and effects of the coding variations on ABCA1 function in mediating cellular cholesterol efflux. Age of symptom onset was found to be associated with the promoter − 407G > C polymorphism, being 2.82 years higher in C allele homozygotes than in G allele homozygotes and intermediate in heterozygotes (61.54, 59.79 and 58.72 years, respectively; P = 0.002). In agreement, patients carrying ABCA1 haplotypes containing the −407C allele had higher age of symptom onset. Patients of the G/G or G/C genotype of the −407G > C polymorphism had significant coronary artery stenosis (>75%) at a younger age than those of the C/C genotype (P = 0.003). Reporter gene assays showed that ABCA1 haplotypes bearing the −407C allele had higher promoter activity than haplotypes with the −407G allele. Functional analyses of the coding polymorphisms showed an effect of the V825I substitution on ABCA1 function, with the 825I variant having higher activity in mediating cholesterol efflux than the wild-type (825V). A trend towards higher symptom onset age in 825I allele carriers was observed. The data indicate an influence of common ABCA1 functional polymorphisms on age of symptom onset in CAD patient
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