Responses to oral glucose challenge differ by physical activity volume and intensity: A pilot study

BackgroundOne-hour postprandial hyperglycemia is associated with increased risk of type 2 diabetes and cardiovascular disease. Physical activity (PA) has short-term beneficial effects on post-meal glucose response. This study compared the oral glucose tolerance test results of 3 groups of people with habitually different levels of PA.MethodsThirty-one adults without diabetes (age 25.9 ± 6.6 years; body mass index 23.8 ± 3.8 kg/m²; mean ± SD) were recruited and divided into 3 groups based on self-reported PA volume and intensity: low activity < 30 min/day of moderate-intensity activity (n = 11), moderately active ≥ 30 min/day of moderate-intensity PA (n = 10), and very active ≥ 60 min/day of PA at high intensity (n = 10). Participants completed an oral glucose tolerance test (50 g glucose) with capillary blood samples obtained at baseline, 15 min, 30 min, 45 min, 60 min, 90 min, and 120 min post-ingestion.ResultsThere were no significant differences between groups for age or body fat percentage or glycated hemoglobin (p > 0.05). The groups were significantly different in terms of baseline glucose level (p = 0.003) and, marginally, for gender (p = 0.053) and BMI (p = 0.050). There was a statistically significant effect of PA on the 1-h postprandial glucose results (p = 0.029), with differences between very active and low activity groups (p = 0.008) but not between the moderately active and low activity groups (p = 0.360), even when baseline glucose level and gender differences were accounted for. For incremental area under the curve there was no significant effect of activity group once gender and body fat percentage had been accounted for (p = 0.401). Those in the low activity group took 15 min longer to reach peak glucose level than those in the very active group (p = 0.012).ConclusionThe results suggest that high levels of PA have a beneficial effect on postprandial blood glucose profiles when compared to low and moderate levels of activity.     

Maternal socialization of positive affect: the impact of invalidation on adolescent emotion regulation and depressive symptomatology

This study examined the relations among maternal socialization of positive affect (PA), adolescent emotion regulation (ER), and adolescent depressive symptoms. Two hundred early adolescents, 11-13 years old, provided self-reports of ER strategies and depressive symptomatology; their mothers provided self-reports of socialization responses to adolescent PA. One hundred and sixty-three mother-adolescent dyads participated in 2 interaction tasks. Adolescents whose mothers responded in an invalidating or "dampening" manner toward their PA displayed more emotionally dysregulated behaviors and reported using maladaptive ER strategies more frequently. Adolescents whose mothers dampened their PA more frequently during mother-adolescent interactions, and girls whose mothers reported invalidating their PA, reported more depressive symptoms. Adolescent use of maladaptive ER strategies mediated the association between maternal invalidation of PA and early adolescents' concurrent depressive symptoms.     

Distinguished Paper Series

The second in the Distinguished Paper Series is ‘Communication d'un savoir scientifique en classe: de la verbalisation au concept d'équilibre chimique’ by Nathalie Evrard, Anne‐Marie Huynen and Cecile de Bueger‐Vander Borght. It first appeared in the French‐language journal Didaskalia, 6, 9‐37 and appears by kind permission of the Editor, M. Michel Jezierski, De Boeck Université, Paris, Bruxelles. Translation is by Dr Veronica Heath, Department of French Studies, at the University of Reading.     

Ethical considerations in an online community: the balancing act

With the emergence and rapid growth of Social Media, a number of government departments in several countries have embraced Social Media as a privilege channel to interact with their constituency. We are exploring, in collaboration with the Australian Department of Human Services, the possibility to exploit the potential of social networks to support specific groups of citizens. To this end, we have developed Next Step, an online community to help people currently receiving welfare payments find a job and become financially self-sufficient. In this paper, we explore some ethical issues that arise when governments engage directly with citizens, in particular with communities in difficult situations, and when researchers are involved. We describe some of the challenges we faced and how we addressed them. Our work highlights the complexity of the problem, when an online community involves a government department and a welfare recipient group with a dependency relationship with that department. It becomes a balancing act, with the need to ensure privacy of the community members whilst still fulfilling the government’s legal responsibilities. While difficult, these issues must be addressed if governments are to engage with their citizens using Social Media.     

Young black males: resilience and the use of capital to transform school ‘failure’

This article addresses the idea of ‘failure’ of young black males with respect to schooling. Perceptions of black masculinity are often linked to ‘underperformance’ in the context of school academic achievement. This article addresses how young black men, by great personal effort, recover from school ‘failure’. It explores how young black men, despite negative school experiences, see possibilities for their future and how they seek to transform school ‘failure’ into personal and educational ‘success’. Low attainment combined with permanent/temporary exclusion from school does not necessarily deter young black men from pursuing their education. This low attainment is used by some to make a renewed attempt at educational progression in a different post-school learning environment. Yosso’s concept of ‘community cultural wealth’ provides an understanding of how different forms of capital are accessed by young black men to form a ‘turnaround narrative’. This article considers the complex ways in which young black males work to transform their negative school experience. Their narratives reveal a determination to succeed and the ways in which cultivation of this determination by the family, organisational/community agents promotes a sense of possibility. However, it remains to be seen how, in the UK, the cuts to vital local services and support will impact on this sense of possibility.     

Contrasting disclosure practices and experiences of school support for Australian adolescents with cancer,cystic fibrosis and anorexia nervosa: parent perspectives

Schools in Australia are required to promote equitable access to education and provide support services to students with chronic health conditions (CHCs). This qualitative study was conducted to explore stakeholders’ experiences and perceptions regarding school-based support. In-depth interviews were conducted with 38 parents of upper secondary school students with cystic fibrosis, anorexia nervosa or cancer (which were illustrative of different types of severe congenital, mental health or somatic CHCs). This enabled comparison of findings to determine whether there were any patterns in perceptions and experiences that were tied to the different CHCs. Data were analysed using a modified grounded theory approach to identify themes. Even though analysis indicated that all cohorts of parents viewed informed educators as best placed to provide tailored school-based support, major cohort differences were reported in parental experiences of school-based support as well as parental diagnosis disclosure behaviour. This latter finding was associated with cohort-related perceptions of risk to their adolescent child. Barriers to school-based support were perceived as varying by condition, the advocacy experience of parents and the nature of health service supports. Taking these findings into account, modification of current policies and practices within education and health sectors may lead to more equitable educational outcomes.     

Literature reviews,citations and intertextuality in graduate student writing

Literature reviews are a genre that many graduate students do not fully understand and find difficult to write. While the genre, language and rhetorical moves of literature reviews are widely researched, less research focuses on citation use in literature reviews. Teaching students ‘how-to’ write the literature review through explicit genre awareness is not enough. What is needed, is a focus on the discursive nature of citations since citations are a core ingredient in literature reviews. The complexity of citing, referencing and using sources is difficult to teach in university classrooms, especially in courses that focus on content knowledge. When it is taught, it is often imparted to students as conventions with particular organisational features around citation styles. Or it is taught within the discourse of morality and academic dishonesty that surrounds plagiarism. What is lacking is a pedagogy that relates citing to the more complex discursive practices that are implicit and deeply embedded in particular time-bound contexts. The purpose of this research was to explore citation patterns in 23 draft and final masters’ student literature review papers to better understand the ways in which students use sources in literature reviews with the aim of informing pedagogy. Findings indicate that the concept of intertextuality, specifically, transgressive intertextuality, intertextual engagement and discursive intertextuality can help with the teaching and learning of literature reviews and citation use.     

WebQuests and collaborative learning in teacher preparation: a Singapore study

This research project aimed to introduce WebQuests to train special education preservice teachers in Singapore. The following research questions were posed: (1) Does the use of WebQuests in teacher preparation promote special education teacher understanding on Universal Design for Learning in accommodating students with diverse learning needs? (2) Are WebQuests useful tools that can enhance teacher’s higher-order thinking, engagement, creativity, and collaborative learning skills? (3) Does the use of WebQuests in teacher preparation foster stronger desires for teachers to integrate Information and Communication Technology in teaching and learning? Seventy-five preservice special education teachers responded to a survey questionnaire after experiencing WebQuest developed by the course instructor in teacher preparation program in Singapore. The majority of teachers indicated strong preference for WebQuest activities over traditional teacher-directed learning methods.