Influences of lateral preference and personality on behaviour towards a manual sorting task

Differences in task behaviour between left- and right-handers and left- and right-eared individuals have been reported (e.g. Jackson, 2008 and Wright et al., 2004) with left-handers taking longer to begin a task and right-eared individuals having a more disinhibited approach. Personality measurements are also important when examining approach behaviour. Jackson (2008) reported that those with higher neuroticism levels and a right-ear preference react faster to tasks. The current study investigated the effects of lateral preference and personality on behaviour towards a manual sorting task. Eighty-five participants completed laterality and personality scales and a card-sorting task. Degree of hand preference was found to influence behaviour towards the task with strong left-handers taking longer to begin. Those with a left congruent lateral preference (left-hand, left-ear) took significantly longer to begin the task than those with a right congruent preference. Neither neuroticism nor extraversion influenced task approach. We concluded that hand preference, and more specifically a strong left-hand preference is a good predictor of a longer initiation time on a manual task. Ear preference on its own does not predict initiation time

Inquiry Learning: Level, Discipline, Class Size, What Matters?

Inquiry learning is a pedagogical approach that focuses on the processes and skills required to conduct research. It is a pedagogical approach that has been demonstrated to have positive learning outcomes. McMaster University has been committed to this form of learning for more than ten years in three of the faculties on campus (i.e., Humanities, Science and Social Sciences). This commitment has been in the creation of stand-alone, small class size first year inquiry classes. The current research, involving document analysis of 545 course outlines from the Faculty of Social Sciences demonstrates that inquiry learning is concentrated in first and fourth year primarily with modest amounts in second and third year courses. Results reveal cross-discipline variation. Some disciplines exhibit higher levels of inquiry (i.e., Social Work, Labour Studies and Political Science) than others (i.e., Gerontology, Geography and Anthropology). Although inquiry was more likely to occur in small classes there were examples of inquiry learning in classes with more than 250 students

Reply to the letter to the editor regarding 'Clinical assessment of subacromial shoulder impingement – which factors differ from the asymptomatic population?'

[Extract] Not surprisingly, impingement is a term which does not reflect the underlying cause of all shoulder pain. Hence there is healthy debateregarding alternate terminology (Braman et al., 2013; J. S. Lewis, 2011 ; McFarland et al., 2013). However, it continues to be a term used throughout the medical literature and in an attempt to embrace this wider audience, until there is agreement about terminology, it was chosen for use in this paper

Isokinetic clinical assessment of rotator cuff strength in subacromial shoulder impingement

Background: Current conservative management of subacromial shoulder impingement (SSI) includes generic strengthening exercises, especially for internal (IR) and external (ER) shoulder rotators. However, there is no evidence that the strength or the ratio of strength between these muscle groups is different between those with SSI (cases) and an asymptomatic population (controls). Objective: To identify if isokinetic rotator cuff strength or the ratio of strength is significantly different between cases and controls. Study Design: Case Control Study. Method: Fifty one cases with SSI and 51 asymptomatic controls matched for age, gender, hand dominance and physical activity level completed isokinetic peak torque glenohumeral IR and ER testing. Within the SSI group, 31 dominant limbs were symptomatic and 20 non-dominant limbs were symptomatic. IR and ER were measured separately using continuous reciprocal concentric (con) and eccentric (ecc) contraction cycles at a speed of 600 degrees per second and again at 1200 degrees per second. Values of peak torque (PT), relative peak torque (RPT) and ratios were compared using independent t-tests between the SSI and asymptomatic groups. Results: Significant strength differences between the two groups were present only when the symptomatic SSI shoulder was the dominant shoulder (con ER PT at 600 /second, ecc ER PT at 1200 /second, ecc ER RPT at 1200 /second and ecc IR PT at 600 /second and 1200 /second). Conclusions: Changes in rotator cuff strength in SSI may be related to limb dominance, which may have implications for strengthening regimes

Clinical assessment of subacromial shoulder impingement – Which factors differ from the asymptomatic population?

Copyright © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This author manuscript is made available following 12 month embargo from date of publication (19 Dec 2016) in accordance with publisher’s copyright policyBackground To date, the significance of factors purported to be associated with subacromial shoulder impingement (SSI) and what differences, if any, are present in those with SSI compared to a matched asymptomatic population has not been identified. Gaining information about differences between people with SSI and asymptomatic people may direct clinicians towards treatments that impact upon these differences. Objective Compare the assessment findings of factors suggested to be associated with SSI; passive posterior shoulder range, passive internal rotation range, resting cervical and thoracic postures, active thoracic range in standing and scapula positioning between cases experiencing SSI and a matched asymptomatic group (controls). Method Fifty one SSI cases and 51 asymptomatic controls were matched for age, gender, hand dominance and physical activity level. The suggested associated factors were measured bilaterally. Independent t-tests were used to compare each of these measurements between the groups. Any variables for which a significant difference was identified, were then included in a conditional logistic regression analysis to identify independent predictors of SSI. Results The SSI group had significantly increased resting thoracic flexion and forward head posture, as well as significantly reduced upper thoracic active motion, passive internal rotation range and posterior shoulder range than the matched asymptomatic group. No independent predictors of SSI were identified in conditional logistic regression analysis. Conclusion Thoracic posture, passive internal rotation range and posterior shoulder range were significantly different between cases experiencing SSI and a matched asymptomatic group

Collaborative systems for enhancing the analysis of social surveys: the grid enabled specialist data environments

This paper describes a group of online services which are designed to support social survey research and the production of statistical results. The 'Grid Enabled Specialist Data Environment' (GESDE) services constitute three related systems which offer facilities to search for, extract and exploit supplementary data and metadata concerned with the measurement and operationalisation of survey variables. The services also offer users the opportunity to deposit and distribute their own supplementary data resources for the benefit of dissemination and replication of the details of their own analysis. The GESDE services focus upon three application areas: specialist data relating to the measurement of occupations; educational qualifications; and ethnicity (including nationality, language, religion, national identity). They identify information resources related to the operationalisation of variables which seek to measure each of these concepts - examples include coding frames, crosswalk and translation files, and standardisation and harmonisation recommendations. These resources constitute important supplementary data which can be usefully exploited in the analysis of survey data. The GESDE services work by collecting together as much of this supplementary data as possible, and making it searchable and retrievable to others. This paper discusses the current features of the GESDE services (which have been designed as part of a wider programme of ‘e-Science’ research in the UK), and considers ongoing challenges in providing effective support for variable-oriented statistical analysis in the social sciences

More than 650 refugees arrived in this regional town. Locals' welcoming attitudes flipped the stereotype

Over four years, we examined a regional town's attitudes before and after hundreds of refugees settled in the area. Our surveys found residents of Armidale, in northeastern New South Wales, started out reasonably positive about the settlement program, and became even more so.Over time, they had fewer concerns about the impact of refugees on the town, more contact with the refugees, and more positive attitudes towards refugees and the settlement program

An example of enhanced tephra deposition driven by topographically-induced atmospheric turbulence

Spatial variations in the thickness and grain-size characteristics of tephra fall deposits imply that tephra depositional processes cannot be fully captured by models of single-particle sedimentation from the base of the eruption plume. Here, we document a secondary thickness maximum in a ∼9.75 ka tephra fall deposit from Chaitén volcano, Chile (Cha1 eruption). This secondary thickness maximum is notably coarser-grained than documented historical examples, being dominated by medium-grained ash, and an origin via particle aggregation is therefore unlikely. In the region of secondary thickening, we propose that high levels of atmospheric turbulence accelerated particles held within the mid- to lower-troposphere (0 to ∼6 km) towards the ground surface. We suggest that this enhancement in vertical atmospheric mixing was driven by the breaking of lee waves, generated by winds passing over elevated topography beneath the eruption plume. Lower atmospheric circulation patterns may exert a significant control on the dispersal and deposition of tephra from eruption plumes across all spatial scales, particularly in areas of complex topography