2,658 research outputs found
School refusal and isolation: the perspectives of five adolescent school refusers in London, UK
Research has identified a subset of young people who feel unable to engage in mainstream education. Given the hard-to-reach nature of this group, their views on what has caused their isolation from others have received little focus in previous literature. The present study aimed to explore the experiences and views of a subset of young people seen within an inner London Pupil Referral Unit who were extremely socially withdrawn and unable to attend mainstream education. They were asked what they believe led them to their current situation, the impact of isolation, how their life is going and what they value. Key themes identified were the role of anxiety in withdrawal from education and the protective capacity of social contact, even via social media, in preventing negative outcomes of withdrawal. Sleep, health, education, family and social contact were identified as risk and protective factors and were also things participants identified as values. This research provides insight into potential ways to support young people in returning to mainstream education as well as ideas for preventative measures that may protect future generations from such extreme isolation. This research was conducted before the COVID-19 pandemic, but lessons learned bear relevance in current times
A systematic review of worldwide cancer nursing research: 1994 to 2003
Kelly contributed to the conduct and choice of papers for the study, carried out a systematic review of one sixth of all the papers, contributed to the conclusion and helped to edit the final version of this paper
Quasiclassical approaches to the generalized quantum master equation
The formalism of the generalized quantum master equation (GQME) is an effective tool to simultaneously increase the accuracy and the efficiency of quasiclassical trajectory methods in the simulation of nonadiabatic quantum dynamics. The GQME expresses correlation functions in terms of a non-Markovian equation of motion, involving memory kernels that are typically fast-decaying and can therefore be computed by short-time quasiclassical trajectories. In this paper, we study the approximate solution of the GQME, obtained by calculating the kernels with two methods: Ehrenfest mean-field theory and spin-mapping. We test the approaches on a range of spin–boson models with increasing energy bias between the two electronic levels and place a particular focus on the long-time limits of the populations. We find that the accuracy of the predictions of the GQME depends strongly on the specific technique used to calculate the kernels. In particular, spin-mapping outperforms Ehrenfest for all the systems studied. The problem of unphysical negative electronic populations affecting spin-mapping is resolved by coupling the method with the master equation. Conversely, Ehrenfest in conjunction with the GQME can predict negative populations, despite the fact that the populations calculated from direct dynamics are positive definite
On the identity of the identity operator in nonadiabatic linearized semiclassical dynamics
Simulating the nonadiabatic dynamics of condensed-phase systems continues to
pose a significant challenge for quantum dynamics methods. Approaches based on
sampling classical trajectories within the mapping formalism, such as the
linearized semiclassical initial value representation (LSC-IVR), can be used to
approximate quantum correlation functions in dissipative environments. Such
semiclassical methods however commonly fail in quantitatively predicting the
electronic-state populations in the long-time limit. Here we present a
suggestion to minimize this difficulty by splitting the problem into two parts,
one of which involves the identity, and treating this operator by
quantum-mechanical principles rather than with classical approximations. This
strategy is applied to numerical simulations of spin-boson model systems,
showing its potential to drastically improve the performance of LSC-IVR and
related methods with no change to the equations of motion or the algorithm in
general, but rather by simply using different functional forms of the
observables
Evaluation of a gender-sensitive physical activity programme for inactive men in Ireland: Protocol paper for a pragmatic controlled trial
The excess burden of ill-health, mortality and premature death experienced by many men, and poorer men in particular, across the developed world has prompted calls for the development of gender sensitised health related services for men. An emergent body of evidence indicates that successful public health work with men can be accomplished when it utilises elements with which men are familiar and secure. In particular, physical activity (PA) is proven here to be a useful ‘hook’ to engage men. ‘Men on the Move’ (MoM) is a community-based PA programme designed to engage inactive men to improve their overall health and well-being. The MoM programme was delivered by practitioner partnerships in diverse communities and among diverse groups of men under ‘real world’ conditions to assess both its efficacy and replicability with a view to scaling-up the programme nationally for population wide impact. Establishing appropriate protocols is critical when conducting research that translates into practice, is replicable in practice and can be disseminated at a population level. The purpose of this paper is to detail the protocols used in the design, implementation and evaluation of the MoM programme. Specifically, the process of engaging men in a community based PA intervention and sustaining that engagement over the 12 weeks and the protocols used to evaluate the impact of participation in MoM on biopsychosocial health up to 52 weeks will be outlined. If the intervention proves successful, gender-sensitive community based PA interventions for men could be a promising avenue to address their health needs. These findings may be of support to both practitioners endeavouring to engage men and others engaged in translational research to ensure their research translates to meaningful action in practice
The impact of a gender-specific physical activity intervention on the fitness and fatness profile of men in Ireland
Background: Amid increasing concerns about rising obesity rates and unhealthy lifestyle behaviours, physical activity (PA) is seen as a prophylactic to many chronic conditions affecting men. Men respond best to community-based PA programmes, using gender-specific promotional and delivery strategies. ‘Men on the Move’ (MOM) was developed on this basis and targeted inactive adult men in Ireland.
Methods: Sedentary men (n=927; age=50.7±10.9yr; Weight=92.7±16.0kg; METS=6.06±2.13) were recruited across 8 counties; 4 ‘intervention group’ (IG; n=501), and 4 ‘comparison-in-waiting group’ (CG; n=426). The MOM programme involved structured group exercise twice weekly for 12 weeks, along with health-related workshops with the groups maintained up to 52W. Primary outcome measures (aerobic fitness, bodyweight and waist circumference (WC)) together with self-administered questionnaires were used to gather participant data at baseline, 12, 26 and 52 weeks (W).
Results: Results show a net positive effect on aerobic fitness, bodyweight and WC, with significant (p<0.05) net change scores observed in the IG compared to the CG (METS: 12W=+2.20, 26W=+1.89, 52W=+0.92; Weight: 12W=-1.72kg, 26W=-1.95kg, 52W=-1.89kg; WC: 12W=-4.54cm, 26W=-2.69cm, 52W=-3.16cm). The corresponding reduction in cardiovascular disease risk is particularly significant in the context of a previously inactive and overweight cohort. The high ‘dropout’ (42.7% presenting at 52W) however, is of particular concern, with ‘dropouts’ having lower levels of aerobic fitness and higher bodyweight/WC at baseline.
Conclusions: Notwithstanding dropout issues, findings address an important gap in public health practice by informing the translational scale-up of a small controllable gender-specific PA intervention, MOM, to a national population based PA intervention targeting inactive men
Impact of proctoring on success rates for percutaneous revascularisation of coronary chronic total occlusions.
OBJECTIVE: To assess the impact of proctoring for chronic total occlusion (CTO) percutaneous coronary intervention (PCI) in six UK centres. METHODS: We retrospectively analysed 587 CTO procedures from six UK centres and compared success rates of operators who had received proctorship with success rates of the same operators before proctorship (pre-proctored) and operators in the same institutions who had not been proctored (non-proctored). There were 232 patients in the pre-proctored/non-proctored group and 355 patients in the post-proctored group. Complexity was assessed by calculating the Japanese CTO (JCTO) score for each case. RESULTS: CTO PCI success was greater in the post-proctored compared with the pre-proctored/non-proctored group (77.5% vs 62.1%, p<0.0001). In more complex cases where JCTO≥2, the difference in success was greater (70.7% vs 49.5%, p=0.0003). After proctoring, there was an increase in CTO PCI activity in centres from 2.5% to 3.5%, p<0.0001 (as a proportion of total PCI), and the proportion of very difficult cases with JCTO score ≥3 increased from 15.3% (35/229) to 29.7% (105/354), p<0.0001. CONCLUSIONS: Proctoring resulted in an increase in procedural success for CTO PCI, an increase in complex CTO PCI and an increase in total CTO PCI activity. Proctoring may be a valuable way to improve access to CTO PCI and the likelihood of procedural success
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