Sympathoadrenal and parasympathetic responses to exercise

Exhaustive exercise is associated with a persistent sensation of weakness and sometimes nausea suggesting abdominal vagal activity. We measured plasma indices of sympathoadrenal (adrenaline, noradrenaline, dopamine) and vagal (pancreatic polypeptide) activity before, during and after submaximal and maximal exercise in healthy young subjects. Plasma adrenaline, noradrenaline and dopamine increased to 8.5 (range 7.4–40.5), 48.0 (32.3–100.5) and 1.8 (1.2–6.6) nmol l^–1 respectively (n = 5), during maximal exercise and decreased towards control values within 15 min of rest. Pancreatic polypeptide (n = 10) increased only during maximal exercise and reached its highest value, 48 (21–145) pmol l^–1, after exertion. The results conform to an increase in sympathetic activity during exercise and a persistent vagal activity after intense exercise which could contribute to the sensation of weakness.     

Distractor Similarity and Item-Stem Structure: Effects on Item Difficulty

Methods for detecting copying of multiple-choice test responses developed over a 60-year period are reviewed and compared with respect to their effectiveness and the practicality of their application for groups of varying size. Although effective detection methods are routinely used in large admissions and licensing testing programs, they are seldom applied in the areas of standardized testing or classroom testing in schools or colleges. Circumstances associated with this discrepancy are discussed.     

Action research in initial teacher education: an explorative study

The aim of the study was to describe students’ and teacher educators’ practical experience with action research and to identify a number of special points for consideration (opportunities and limitations) which could play a role in putting research into practice in concrete terms in the courses. Students and teacher educators on three Dutch initial teacher education programmes which treat action research as both a means of professional development and a necessary professional qualification were involved. These were programmes for specific teaching levels and subjects in Dutch schools. Four special points for consideration are identified: action research and the educational core qualifications of the profession; difference between action research by student teachers during their initial education and experienced teachers in their own workplace; students’ mixed experiences and perceptions of research; and embedded research‐based activities in the programme. The authors conclude that action research should be considered from different perspectives: as a professional approach, a body of skills that is needed to make the connection between knowing that and knowing why; and as a way of improving practice by systematically building up practice‐based knowledge.     

Mechanical Player Load™ using trunk-mounted accelerometry in football: Is it a reliable,task- and player-specific observation?

The aim of the present study was to examine reliability and construct convergent validity of Player Load? (PL) from trunk-mounted accelerometry, expressed as a cumulative measure and an intensity measure (PL · min^–1). Fifteen male participants twice performed an overground football match simulation that included four different multidirectional football actions (jog, side cut, stride and sprint) whilst wearing a trunk-mounted accelerometer inbuilt in a global positioning system unit. Results showed a moderate-to-high reliability as indicated by the intra-class correlation coefficient (0.806–0.949) and limits of agreement. Convergent validity analysis showed considerable between-participant variation (coefficient of variation range 14.5–24.5%), which was not explained from participant demographics despite a negative association with body height for the stride task. Between-task variations generally showed a moderate correlation between ranking of participants for PL (0.593–0.764) and PL · min^–1 (0.282–0.736). It was concluded that monitoring PL^® in football multidirectional actions presents moderate-to-high reliability, that between-participant variability most likely relies on the individual’s locomotive skills and not their anthropometrics, and that the intensity of a task expressed by PL · min^–1 is largely related to the running velocity of the task.     

A Systematic Review of Life Skill Development Through Sports Programs Serving Socially Vulnerable Youth

Purpose: Despite the strong belief in sports programs as a setting in which socially vulnerable youth can develop life skills, no overview exists of life skill development in sports programs serving this youth group. Therefore, the present systematic review provides an overview of the evidence on life skill development in sports programs serving socially vulnerable youth and, insofar as it was investigated in the included studies, of the conditions conducive to life skill development in these sports programs. Method: Potentially relevant studies published during 1990 to 2014 were identified by a search in 7 electronic databases. The search combined terms relating to (a) sport, (b) youth AND socially vulnerable, and (c) life skills. Eighteen of the 2,076 unique studies met the inclusion criteria. Results: Each included study reported that at least 1 life skill improved in youth who participated in the studied sports program. Improvements in cognitive and social life skills were more frequently reported than were improvements in emotional life skills. Only a few of the included studies investigated the conditions in the studied sports programs that made these programs conducive to life skill development. Conclusions: Sports programs have the potential to make a difference in the life skill development of socially vulnerable youth. This conclusion needs to be treated with some caution, because the studies experienced many challenges in reducing the risk for bias. Several alternative research strategies are suggested for future studies in this field.     

Crossing horizons: Continuity and change during second-career teachers’ entry into teaching

Findings are reported from two studies examining from which specific backgrounds and in which ways second-career teachers make the transition to teaching. The transfer of existing competencies to teaching is shown to involve a challenging interplay between experiences of continuity and change. Continuity was found at the level of beliefs. Change predominated at the level of the work environment. Continuity as well as change were experienced at the levels of behaviour, competencies, identity and mission. Several aspects of career changers’ workplace learning are identified which deserve special attention in designing and implementing alternative certification programmes.     

Stressing academia? Stress-as-offence-to-self at Danish universities

Academic work has traditionally been seen as relatively stress free. However, a growing number of studies have reported increases in occupational stress experienced by university researchers. In order to explain stress among this group, we build on a new perspective in occupational stress research: the so-called stress-as-offence-to-self perspective. In line with this perspective, we have investigated the incongruence between the researchers’ work values and their perceptions of the working conditions provided by the organisation. The analysis is based on a sample of 2127 Danish university researchers. The results show that person-organisation incongruence with regard to freedom and independence in the job, job security, personal and professional development at work, and receiving peer recognition are associated with higher levels of stress among the researchers. Based on these results, we suggest three strategies for managers at universities to mitigate stress among academic employees: a tough recruitment process, a team-based organisation and a proactive human resource strategy.     

Patterns of development in second-career teachers' conceptions of learning and teaching

This study was aimed at deepening our understanding of second-career teachers' conceptions of teaching and learning. Initial conceptions held by 207 candidates entering an alternative teacher education programme were explored using a semi-structured questionnaire covering background characteristics and four themes concerning teaching and learning. A limited number of distinct conceptions could be identified and related to respondents' background characteristics. After the first semester of the programme, three patterns of development were found in a subset of 70 participants: growth, consolidation and regression. Pedagogical implications for fostering growth in second-career teachers are discussed.     

Tapping into existing information flows: The transformation to compliance by design in business-to-government information exchange

Transforming Business-to-Government (B2G) information exchange is a next frontier for reducing government spending while improving performance. This paper examines two different B2G information exchange architectures that reflect continuing transformations that empower some government agencies to do better compliance monitoring tasks with fewer resources. The win for the reporting companies is the lower cost of compliance. Instead of focusing on collecting compliance information from individual companies, the government agencies in this study focus on collecting information on the supply chain level, allowing for automated data reconciliation. Our findings reveal that pushing controls (automated checks) upstream (in company software and data sources) results in more efficiency, higher information quality and reduces redundant controls. The examined architectures exhibit high levels of compliance by design, meaning that many control objectives are by default encompassed in the design. This requires a well-aligned combination of data standardization (using shared syntax and semantics) and automated information processing (using an intelligent gateway between businesses and government agencies). However, achieving such an alignment is a difficult challenge; especially when taking into account that such transformations require solid governance, trust and high initial investments — prerequisites that are rare in many public-private partnerships.