Cardiac autonomic and haemodynamic recovery after a single session of aerobic exercise with and without blood flow restriction in older adults

This study investigated the autonomic and haemodynamic responses to different aerobic exercise loads, with and without blood flow restriction (BFR). In a crossover study, 21 older adults (8 males and 13 females) completed different aerobic exercise sessions: low load without BFR (LL) (40% VO_2max), low load with BFR (LL-BFR) (40% VO_2max + 50% BFR) and high load without BFR (HL) (70% VO_2max). Heart rate variability and haemodynamic responses were recorded during rest and throughout 30 min of recovery. HL reduced R–R interval, the root mean square of successive difference of R–R intervals and high frequency during 30 min of recovery at a greater magnitude compared with LL and LL-BFR. Sympathetic–vagal balance increased the values for HL during 30 min of recovery at a greater magnitude when compared with LL and LL-BFR. Post-exercise haemodynamic showed reduced values of double product at 30 min of recovery compared to rest in LL-BFR, while HL showed higher values compared to rest, LL-BFR and LL. Reduced systolic blood pressure was observed for LL-BFR (30 min) compared to rest. Autonomic and haemodynamic responses indicate lower cardiovascular stress after LL-BFR compared to HL, being this method, besides the functional adaptations, a potential choice to attenuate the cardiovascular stress after exercise in older adults.     

Learning From Others: The Effects of Agency on Event Memory in Young Children

Little is known about the influence of social context on children's event memory. Across four studies, we examined whether learning that could occur in the absence of a person was more robust when a person was present. Three-year-old children (N = 125) viewed sequential events that either included or excluded an acting agent. In Experiment 1, children who viewed an agent recalled more than children who did not. Experiments 2a and 2b utilized an eye tracker to demonstrate this effect was not due to differences in attention. Experiment 3 used a combined behavioral and event-related potential paradigm to show that condition effects were present in memory-related components. These converging results indicate a particular role for social knowledge in supporting memory for events.     

Early retention: Are there long-term beneficial effects?

The purpose of this study was to examine whether retention of kindergarten and first-grade children is associated with long-term beneficial effects. Thirty-one children who had been retained were compared to 31 children who had similar grades but had never been retained. The dependent measures were grade point average in the second through fifth grades and four teacher-assessed areas of functioning in the fourth and fifth grade: social competence, cognitive competence, externalizing problems, and internalizing problems. The results indicated that retention was not associated with long-term beneficial effects but rather, especially for White children, appeared to be associated with poorer academic and social functioning. Implications and limitations of the study are discussed.     

The Self-Perceptions of Pupils with Down Syndrome in Relation to Their Academic Competence,Physical Competence and Social Acceptance

The self-perceptions of 64 pupils with Down syndrome aged between 8 and 16 years were assessed in three school related domains; academic competence, physical competence, and social acceptance. Results from the Pictorial Scale of Perceived Competence and Acceptance and a School Situations Grid suggested that pupils with Down syndrome hold very positive self-perceptions in each school related domain, that self-perceptions become more positive with age, are more positive for females than males, and remain positive regardless of school placement type. The utility of the instruments for assessing the self-perceptions of pupils with Down syndrome is discussed. Possible explanations for the study findings and suggestions for further research are also raised.     

Search is a verb: systematic review searching as invisible labor

Invisible labor is a term used by labor economists to describe work that contributes, and is often even necessary, to the economy but largely goes unrecognized and unpaid. Despite the fact that systematic review searching is a significant task for many librarians and knowledge professionals, the search process can be considered a form of invisible labor because it often goes without recognition. This occurs sometimes through not granting authorship to the librarian who performed the intellectual contribution of search development and sometimes through a devaluing of the search process by the choice of language used to describe the search. By using the term search as a passive verb or noun, authors devalue the real intellectual labor involved in searching, which includes decisions related to search terms and combinations, database selection, and other search parameters. This commentary explores the context of how searching is described through the concept of invisible labor.     

On the school beat: police officers based in English schools

Concerns about youth violence and the radicalisation of pupils have contributed to the deployment of onsite police officers in schools in England. Little is known about the work these officers do. This article firstly outlines the policy background that led to police in schools, and then, with a focus on the schools in London that have onsite officers, data obtained from a Freedom of Information request are combined with school characteristics data to show that officers are more likely to be based in schools with high levels of pupils from disadvantaged backgrounds. Foucault’s work on surveillance is explored in theorising police presence on school sites. The relevance of Agamben’s State of Exception is examined in relation to the school-to-prison pipeline in the United States. The article highlights the need for more empirical work in schools to research the impact of onsite police.     

The accountability generation: exploring an emerging leadership paradigm for beginning principals

School leaders in Queensland, Australia, are working in a rapidly shifting policy landscape, expected to work towards system-defined improvement measures involving increasingly higher external accountabilities. This article analyses a group of long-term case studies of the effects of school improvement expectations on principals since the introduction of National Assessment Program – Literacy and Numeracy (NAPLAN) in 2008. Foucauldian theory is used to analyse the influence of performative cultures on a group of Queensland principals. A unique feature of this geographical region is the large proportion of small-school principals, the majority of whom are in the early stages of their teaching careers. Having joined the teaching profession post-NAPLAN, the influence of these accountabilities emerges as a point of difference between them and longer-established principals. The article identifies the emergence of this new leadership paradigm as an area inviting further inquiry within the field of educational leadership research, exploring the influence of rapidly shifting expectations on leadership practices.