A single session of resistance exercise does not reduce postprandial lipaemia

This study investigated the effect of a single session of resistance exercise on postprandial lipaemia. Eleven healthy normolipidaemic men with a mean age of 23 (standard error = 1.4) years performed two trials at least 1 week apart in a counterbalanced randomized design. In each trial, participants consumed a test meal (1.2 g fat, 1.1 g carbohydrate, 0.2 g protein and 68 kJ x kg(-1) body mass) between 08.00 and 09.00 h following a 12 h fast. The afternoon before one trial, the participants performed an 88 min bout of resistance exercise. Before the other trial, the participants were inactive (control trial). Resistance exercise was performed using free weights and included four sets of 10 repetitions of each of 11 exercises. Sets were performed at 80% of 10-repetition maximum with a 2 min work and rest interval. Venous blood samples were obtained in the fasted state and at intervals for 6 h postprandially. Fasting plasma triacylglycerol (TAG) concentration did not differ significantly between control (1.03 +/- 0.13 mmol x l(-1)) and exercise (0.94 +/- 0.09 mmol x l(-1)) trials (mean +/- standard error). Similarly, the 6 h total area under the plasma TAG concentration versus time curve did not differ significantly between the control (9.84 +/- 1.40 mmol l(-1) x 6 h(-1)) and exercise (9.38 +/- 1.12 mmol x l(-1) x 6 h(-1)) trials. These findings suggest that a single session of resistance exercise does not reduce postprandial lipaemia.     

Educational effects of the Tools of the Mind curriculum: A randomized trial

The effectiveness of the Tools of the Mind (Tools) curriculum in improving the education of 3- and 4-year-old children was evaluated by means of a randomized trial. The Tools curriculum, based on the work of Vygotsky, focuses on the development of self-regulation at the same time as teaching literacy and mathematics skills in a way that is socially mediated by peers and teachers and with a focus on play. The control group experienced an established district-created model described as a “balanced literacy curriculum with themes.” Teachers and students were randomly assigned to either treatment or control classrooms. Children (88 Tools and 122 control) were compared on social behavior, language, and literacy growth. The Tools curriculum was found to improve classroom quality and children's executive function as indicated by lower scores on a problem behavior scale. There were indications that Tools also improved children's language development, but these effects were smaller and did not reach conventional levels of statistical significance in multi-level models or after adjustments for multiple comparisons. Our findings indicate that a developmentally appropriate curriculum with a strong emphasis on play can enhance learning and development so as to improve both the social and academic success of young children. Moreover, it is suggested that to the extent child care commonly increases behavior problems this outcome may be reversed through the use of more appropriate curricula that actually enhance self-regulation.     

Effect of acquisition rates on off‐task behavior of kindergarten students while learning sight words

Assessing a student's acquisition rates (ARs) is a reliable way to determine how many new words should be taught in one lesson without reducing retention. Exceeding a student's AR can result in frustration and problem behaviors. The purpose of this study was to examine the effect of AR on the off‐task behavior of kindergarten students while participating in a commonly used sight‐word instruction video. Participants included 39 kindergarten students whose ARs were assessed before showing the sight‐word video. Behavior was measured as on‐ and off‐task using momentary time‐sampling with 10‐s intervals. Results indicated that students' time off task increased after exceeding their ARs, with a noticeable immediate increase. The implications and limitations of these results are discussed.     

The promise of curriculum in the post-Covid world: Eclecticism,deliberation, and a return to the practical and the prophetic

PROSPECTS - This article focuses on the possibilities through which curriculum on the other side of the Covid-19 pandemic might contribute more proactively to future social and political crises...     

Attention in preschoolers: associations with effortful control and motivation

The current study examined how individual differences in children's temperament and motivation relate to attention skills in children from economically disadvantaged families. A total of 73 mother-child dyads participated in this study. Children were between the ages of 3 and 5, and all attended a Head Start program. Using multiple hierarchical regression analyses, the hypotheses that effortful control (an aspect of temperament) and motivation would individually and collectively relate to attention skills were supported. The current study supports the importance of understanding attention as a multifaceted concept (Posner & Petersen, 1990) that relates to cognitive, socioemotional, and motivational systems. The utility of applying a systems approach to school readiness issues in children of poverty is discussed.     

Personal development in teacher education programmes

The study demonstrates the effectiveness of personal growth workshops for trainee teachers. The experimental group of trainee teachers manifested significant improvements in self-esteem, personal warmth, and positive thinking, and became less anxious, more internal in locus of control, and reported fewer stress symptoms than the control group. These changes held over a long teaching practice a context that usually creates stress and lowered self-confidence. Such workshops would appear to be a necessary inclusion in professional training programmes to facilitate performance on the job and well-being in those whose duties involve them in a network of close human relationships with colleagues and clients.     

Higher Education of Single and Married Mothers

This paper describes an Australian sample of 78 single and 107 partnered mothers who entered or re‐entered tertiary study as mature age students. 27% were early school leavers; of those who had matriculated, early marriage and/or early pregnancy were major reasons for non‐continuance with study, and this was particularly the case among those who subsequently became single mothers. Both partnered and single were enrolled in more traditionally female courses of study than were younger female students attending the same institutions. Some four‐fifths of the sample felt they were managing their time, work, relationships, finances and overall coping poorly or very poorly. However their academic performance was well above average. The single mothers felt they were coping rather better than the married, especially with regard to money (despite being poorer), relationships and time. Overall satisfaction with university life was very high, with the main benefits reported by both single and partnered mothers being self‐esteem, knowledge, intellectual interests and intelligence. Career benefits and financial potential were mentioned less often as main benefits and only slightly more frequently by the single mothers. The question is raised of whether mature age women students, as well as female school leavers, should be encouraged to enter non‐traditional courses of study.     

Effects of sequences of sucrose reward magnitudes with short ITIs in rats

Two experiments assessed the role of aftereffect learning in rats rewarded with sucrose solutions. In Experiment 1, rats were trained in a single straight runway for two trials on each of 18 days, each trial terminating with either large (20% scurose) or small (3% sucrose) reward. The ITI was 3–5 min. The sequence of daily rewards for each of four groups was small-small (SS), small-large, (SL), large-small (LS), or large-large (LL). Response patterning and a simultaneous negative contrast effect were observed in LS and SL relative to the consistently rewarded controls. During 10 massed extinction trials, resistance to extinction was greatest for Group SL, followed in order by Groups SS, LL, and LS. Experiment 2 examined single alternation of large and small rewards administered for 10 trials on each of 31 days with an ITI of 60 sec. Reward for one group was 20% or 3% sucrose while another received 1 or 10 45-mg Noyes pellets. Appropriate patterning developed only in the food-pellet rewarded animals. The overall results suggest that sucrose rewards may produce high-amplitude and long-duration aftereffects which interfere with learning in designs employing several massed daily trials, but which may facilitate learning—relative to food-pellet rewards—with longer intertrial intervals and fewer daily trials.