993 research outputs found

    Valuable assets : a general formal investigation into the role and status of classroom assistants in Scotland's primary school

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    Based on the earlier pilot research conducted by SCER, the EOC instigated a General Formal Investigation (GFI) of the role and status of classroom assistants in Scotland's primary schools. As part of the GFI, SCER was commissioned to conduct a national survey of classroom assistants, teachers and head teachers. Primary data was generated from a Scotland-wide, large scale survey sent to over 1000 primary schools. Interviews were also conducted with Directors of Education and the Scottish Executive Education Department

    Recommendations for high intensity upper body exercise testing

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    Introduction: For given submaximal and maximal peak power outputs aerobic responses to upper body exercise are different to those for lower body exercise (Sawka, 1986: Exercise & Sport Sciences Reviews, 14, 175-211). However, much less is known regarding responses to exercise intensities at and around peak oxygen up take (VO2peak). Purpose: The purpose of this study was to determine the metabolic responses during arm crank ergometry (ACE) below, at and above peak oxygen uptake and to help establish exercise testing guidelines for high intensity upper body exercise. Methods: Following institutional ethical approval fourteen male students (Age 21.1, s = 6.1 years and 2.44 s=0.44 VO2peak) volunteered to take part in this study. Each participant exercised on a table mounted cycle ergometer (Monark 894E, Monark Exercise AB, Sweden). After habituation peak minute power (PMP) was calculated from an incremental test. Subsequently each participant completed four continuous work tests (CWT) to volitional exhaustion at 80%, 90%, 100% and 110% of PMP. All tests were completed at 70 rev∙min-1 with a minimum of 48-h between tests and the order was counterbalanced. Each CWT was preceded by a 5 min warm-up, loaded with a mass corresponding to the participants 80% PMP for 20 s at minutes 2, 3 and 4. Oxygen uptake (VO2), respiratory exchange ratio (RER), heart rate (HR) and ratings of perceived exertion for the arms (local (RPEL) and cardiorespiratory strain (RPECR) were recorded at 1 min, 2 min and at volitional exhaustion. The EMG responses at three sites (flexor carpi ulnaris, biceps brachii and triceps brachii lateral) were recorded using double-differential (16-3000 Hz bandwidth, x300 gain), bipolar, active electrodes (MP-2A, Linton, Norfolk, UK). Electromyographic data were sampled at 1000 Hz and filtered using a 20 to 500 Hz band-pass filter (MP150 Data Acquisition and AcqKnowledge 4.0, Biopac, Goleta, CA). The EMG signals for each muscle were root mean squared (RMS) with a 500-ms sample window. The signal was then normalised, prior to each CWT, as a percentage of the mean of 3 sets of 10 duty cycles completed during the warm-up (see above) when the participants 80% PMP for 20 s was applied. Time to exhaustion (Tlim) was recorded as the performance outcome measure. Data for Tlim were analysed using one-way analysis of variance. Differences in EMG, VO2, RER, HR, RPEL and RPECR were analysed using separate two-way analysis of variance with repeated measures (trial x time). All analyses were performed using the Statistical Package for Social Sciences ( 17.0; SPSS Inc., Chicago, IL). Individual differences in means were located using Bonferroni post-hoc correction. Significance was accepted at P < 0.05. Results: As resistive load increased Tlim decreased (611 s=194, 397 s=99, 268 s=90, 206 s=67s, respectively; P < 0.001, ES = 0.625). Post-hoc analysis revealed that Tlim using 80%PMP was longer than for 90%, 100% and 110% PMP trials (P < 0.001) and 90% was longer than both 100% and 110% PMP trials (P = 0.079, P = 0.001). At exhaustion VO2 was similar across trials (P = 0.413, ES = 0.053), although 80% PMP VO2 tended to be less (2.10 s=0.32 l·min-1) than for 90% (2.29 s=0.37), 100% (2.33 s=0.49) and 110% (2.26 s=0.34). Also, 80% PMP VO2 was less than VO2peak (P = 0.013). There were differences in RER at Tlim (P < 0.001, ES = 0.593) with values increasing with % PMP (1.15 s=0.07, 1.26 s=0.07, 1.36 s=0.10, 1.40 s=0.09, respectively). There were no differences across trials for HR at Tlim (~173 (12); P = 0.834, ES = 0.016) and HR was proportional to %PMP at 1 min, and 2 min. For flexor carpi ulnaris there was an increase in activation as exercise intensity increased (P < 0.001, ES = 0.245). There were a similar responses for biceps brachii and triceps brachii demonstrating an increase in activation with exercise intensity (P <0.001, ES = 0.137, P < 0.001, ES = 0.163, respectively). No differences for RPEL and RPECR were observed at Tlim. Discussion: There was a clear response of Tlim with intensity as expected for lower body exercise (Hill et al., 2002: Medicine and Science in Sports and Exercise, 34(4), 709-714). Despite differences in Tlim across exercise intensities VO2, HR and RPE were similar at exhaustion indicating a functional cardiorespiratory maximum had been reached. As indicated by the RER an increased activation of the anaerobic metabolism with greater exercise intensities (100% and 110%) is likely and therefore this may represent a greater anaerobic component at these two intensities. The increase in EMG activity with intensity could indicate an increase activity with an increase in exercise intensity. Conclusion: It is recommended that due to the combination of muscle activation, oxygen uptake and Tlim that an exercise intensity of 90% or 100% of PMP could be used for high intensity upper body exercise testing

    Covid-19 in custody: Responding to pandemics in prisons in England and Wales

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    COVID-19 was first detected in the prison estate in England and Wales in March 2020 and spread rapidly amongst prisoners and staff. A range of policy initiatives were introduced in an attempt to improve the ability for social distancing within the prison estate, reduce the transmission of the disease within prisons and to manage cases as they arose. Policies which involved the temporary release of prisoners, increasing accommodation levels within the estate and cohorting of prisoners presenting with symptoms were all introduced in an attempt to mitigate against the impact of the disease. These policies were neither effective nor implemented in a timely manner and the delay risked increasing the spread of the disease throughout the prison estate. Drawing upon evidence from both public health and social policy research, the following commentary discusses the impact of COVID-19 within the prison estate, along with the impact of a policy approach which was lacking in both timeliness and action on the effective management of pandemics in prison. </p

    Good cop, bad cop, both? Examining the implications of risk based allocation on the desistance narratives of intensive probationers

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    The following paper shall discuss the implementation of the Coalition Governments Transforming Rehabilitation (TR) reforms in 2014 by focusing on the impact of these reforms on the desistance narratives of high risk intensive probationers, paying particular attention to the division of probation work between the National Probation Service (NPS) and the Community Rehabilitation Companies (CRC). It is argued that the reallocation of offenders between the NPS and CRC altered high risk probationers’ perceptions of self, caused probationers to question the occupational competence of CRC offender managers and saw probationers evidence the emergence of an attitudinal dissonance between the two services

    Developing Information Systems in the Absence of Purpose: A complex and autopoietic view

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    Within the Information Systems (IS) literature, an assumption underlying the development and implementation of IS is that the system should support the goals and purposes of the organisation into which it will be introduced. This paper questions the validity of this assumption in light of theoretical developments in the complex systems literature. From a complex systems perspective, the purposeful nature of social systems is brought into question, with the idea of intention giving way to the non-linear emergence of behavioural patterns. This paper will address the question: what are the implications for information system development of a non-intentional social world

    Agricultural policies in a global environment

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    A research paper on agricultural policies in a global environment.Globalization provides opportunities for significant growth. However, unless specific action is taken to ensure that the benefits of the more integrated markets are accessed, globalization will further marginalize poor economies. The reduction of subsidies and tariffs on agricultural commodities in industrial countries could result in increased exports from Zimbabwe but some countries in the west, notably the United States of America, have resisted removing subsidies to their farmers, even when they are at the forefront in demanding this from developing nations. This is the reality that faces developing countries and Zimbabwe suffers a double impact due to international (and particularly western) isolation as a result of its controversial land reform programme and over governance issues. In order to become active in the globalized market and to retain and expand national markets, local institutions need to be adaptable to changing demand and they must provide security and incentives for investment in biological, physical and human capital. Adequate access to markets and information through a reliable and affordable communications network is essential (Ingco and Nash, 2004)

    Valuable assets: phase 2 of a general formal investigation into the role and status of classroom assistants in Scotland's secondary and special schools

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    The aim of this research is to extend existing data by considering classroom assistants in secondary and special schools in Scotland. The research examines the work and employment of classroom assistants and in particular explores the reasons for any role stretch amongst this group

    A Systematic Overview of Reviews of the Use of Immersive Virtual Reality in Higher Education

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    Objectives: Immersive virtual reality (IVR) provides opportunities to learn within a nonphysical, digital world. The purpose of this critical review was to examine published systematic reviews regarding the benefits and challenges of IVR in higher education to inform best practices. Method: We followed the Preferred Reporting Items for Overviews of Reviews (PRIOR) to ensure transparency and to afford an evidence-based approach for synthesizing insights from a broad range of research. We analyzed and synthesized 10 reviews that include 332 studies with over 9,878 participants, following an integrated synthesis design process using thematic analysis and emergent coding. Results: Results confirmed the various benefits and challenges of IVR. The benefits include improved student learning and behaviours, while challenges include technology issues, behaviours that inhibit learning, and learning how to use IVR. Conclusions: IVR holds considerable potential in disciplines requiring practical applications such as simulation-based training and testing. However, further research into contexts such as participant age, gender, instructional design or learning theory, and longitudinal study is required. Finally, higher education stakeholders will benefit from budgeting time and costs, aligning IVR use with real-world applications, maintaining an adaptive mindset, and developing scaffolded instructional design. Implications for Theory and/or Practice: The primary benefits of student learning through IVR include enhanced skill acquisition, experiences, and learning outcomes. In addition, while immersive platforms housed in static rooms may present financial challenges, the emergence of—and increased investment into—untethered headsets and haptic controllers can reduce operational costs and increase student access to high-quality learning experiences

    Munich '72: Selling the Games to Foreign Audiences and at Home

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    The influence of 6 weeks of maximal eccentric plantarflexor training on muscle-tendon mechanics

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    Resistance training can influence muscle-tendon properties including strength, flexibility, stretch tolerance and muscle-tendon stiffness; however the specific influence of eccentric-only training is unknown. Therefore, the aims of the present study were to examine the effects of a 6-week maximal eccentric resistance training programme on isometric plantarflexor moment (MVC), dorsiflexion range of motion (ROM), stretch tolerance (peak passive moment), muscle and tendon stiffness and running economy. Thirteen recreationally active men (age = 20.0 ± 0.9 yr, mass = 75.9 ± 8.5 kg, height = 1.8 ± 0.1 m) volunteered for the study after giving written informed consent; ethical approval was granted from the University of Northampton. Training was performed twice weekly for six weeks and consisted of 5 sets of 12 repetitions of 3-s maximal eccentric contractions at 10°•s-1 from 20° plantarflexion to 10° dorsiflexion. Maximal isometric plantarflexor moment, dorsiflexion ROM, stretch tolerance, and muscle, tendon and muscle-tendon unit (MTU) stiffness were measured using isokinetic dynamometry, real-time ultrasound and 3D motion analyses before and after the training. Running economy (VO2) was determined at a running speed equating to 70%VO2max using online gas analysis. Repeated measures t-tests were used to determine significant differences between pre- and post-training data, significance accepted at p0.05). Analysis of ultrasound data revealed a significant decrease in muscle stiffness (20.6%; p0.05). While the training-induced increase in plantarflexor strength was expected, the substantial increases in ROM, stretch tolerance and tendon stiffness, and the reduction in passive muscle stiffness, were important and novel findings. Interestingly, when measured during passive stretch, MTU stiffness remained unchanged while tendon stiffness increased and muscle stiffness decreased. These disparate findings have clear implications for testing methodologies, and indicate that imaging techniques must be utilised in order to examine the effects of interventions on specific tissues. As the training clearly enhanced the capacity of the muscle to tolerate both tissue loading and deformation, which are commonly associated with muscle strain injury, these data have clear implications for both muscular performance and injury risk
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