The application of inertial measurement units and functional principal component analysis to evaluate movement in the forward 3½ pike somersault springboard dive

Based on technological and analytical advances, the capability to more accurately and finitely examine biomechanical and skill characteristics of movement has improved. The purpose of this study was to use Inertial Measurement Units (IMUs) and Functional Principal Components Analysis (fPCA) to examine the role of movement variability (assessed via angular velocity), on 2 divers (1 international level; 1 national) performing the forward 3½ pike somersault dive. Analysis of angular velocity curves during ive-flight identified 5 fPCs, accounting for 96.5% of movement variability. The national diver’s scatter plots and standard deviation of fPC scores illustrated larger magnitudes of angular velocity variability across dive flight. For fPC1 and fPC3, magnitudes of SD variability were 282.6 and 201.5, respectively. The international diver illustrated more consistent angular velocity profiles, with clustering of fPCs scores (e.g., fPC1 & 3 = SD’s of 75.2 & 68.0). To account for lower variability in the international diver, the ability to better coordinate movement sequences and functionally utilise feedback in response to initiation of the somersault position is highlighted. Overall, findings highlight how both IMUs and fPCA can more holistically and finitely examine the biomechanical and skill characteristics of movement sequences with the capability to inform athlete development.     

YOU CAN TOUCH THIS: SIMULATION EXERCISES FOR AGING AND DISABILITY

Materials and exercises that may be used to simulate some of the deficits that occur in vision, hearing, mobility, and manual dexterity with increased age or disability are described. How arthritis, stroke, glaucoma, cataracts, and yellowing of the lens of the eye may be simulated is explained. The demonstrations are appropriate for educating health care professionals in gerontology and geriatrics and have been used with students of all ages.     

Center Stage: Performing a Needs Assessment of Campus Research Centers and Institutes

Outreach to research centers and institutes is often overlooked in academic libraries. This article discusses a needs assessment conducted by the Liaison Services Department at the University of Houston Libraries that reviewed library services to centers and institutes at the University of Houston's main campus. The assessment was conducted for two purposes: to build collaborations with centers and to determine how the libraries might create new services and/or market existing services to meet the centers and institutes' growing research needs.     

Strategic Assistance in Toddler Disputes: II. Sequences and Patterns of Teachers' Message Strategies

Adopting the view that peer conflict is a zone of proximal development in which adults may provide strategic assistance in negotiating interactional opposition, this study analyzed message strategies used by 13 teachers in the course of intervening in 135 toddler disputes. Spontaneous oppositional episodes precipitating teacher intervention were transcribed and analyzed with lag sequential techniques. The teachers used one of three message strategies to begin processing the toddlers' disputes: (a) summon disputants' attention (CALL); (b) physical restraint or removal of objects (STOP); or (c) ask the disputing toddlers to identify the problem (ASK). Each strategy was associated with certain act-to-act sequences suggesting unique patterns for terminating peer opposition. The predominant pattern began with STOP, in which teachers exercised high control over the intervention and adjudicated its outcome. Dispute negotiation failed to develop, however, from the CALL entry strategy. The process of negotiating peer opposition was more information-based and child-involving when teachers intervened with an ASK strategy, but this strategy was used in only 10.4% of the episodes. Findings are considered relative to evaluating day-to- day teacher practices and refining curriculum models for dealing with toddler disputes in the classroom.     

Parenting and Child DRD4 Genotype Interact to Predict Children’s Early Emerging Effortful Control

Effortful control (EC), or the trait‐like capacity to regulate dominant responses, has important implications for children’s development. Although genetic factors and parenting likely influence EC, few studies have examined whether they interact to predict its development. This study examined whether the DRD4 exon III variable number tandem repeat polymorphism moderated the relation between parenting and children’s EC. Three hundred and eighty‐two 3‐year‐olds and primary caregivers completed behavioral tasks assessing children’s EC and parenting. Children’s DRD4 genotypes moderated the relation between parenting and EC: Children with at least one 7‐repeat allele displayed lower EC in the context of negative parenting than children without this allele. These findings suggest opportunities for modifying early risk for low EC.     

The Relationship Between Security of Attachment and the Development of a Personal Premise System of Relationships and Expectations for Peer Interaction

Block (1984) postulated that children develop a personal premise system concerning the nature of relationships from the kind of responsiveness, balance, and control they experience when interacting with the caregiver and the caregiver's degree of accessibility during caregiver-child interactions. Block's theory was used in this review to discuss how children's personal premise systems or models of relationships develop through the process of attachment to the caregiver, and how, as children establish more extensive social relationships, this premise system becomes a more generalized model of self and others which shapes all interactions with others including peer relationships during early and middle childhood. The review also suggests continuity in the organization of behavior, for just as the nature of the early personal premise system is shaped by caregiver responsiveness, control, consistency, and availability, so the quality of ties youngsters form with their peers seems also to be shaped by the tone of children's responsiveness to peers, the degree and kind of control youngsters exert in peer interactions, the consistency of behaviors with peers, and children's emotional and physical availability to peers.     

Embedding the dialogic in mixed method approaches to theory development

ABSTRACT

Little attention has been paid to the processes that are involved in making sense of the role dissonance between sources of data has played in the development of theoretical insight. This methodologically oriented investigation considers an unusual set of case exemplars that used mixed methods and dialogic forms of mixing in ways that produced incremental or rupture theorizing. Six of seven used dialogic forms of mixing, including through visual displays, in ways that formatively advanced the analysis. Findings invite readers to consider the advantages of an open and creative approach to mixed methods that embrace the challenges presented by unexpected findings.     

Math Anxiety,Need for Cognition,and Learning Strategies in Quantitative Communication Research Methods Courses

To understand student learning in undergraduate quantitative communication research methods course, this study examined relationships between perceptions of course topic difficulty, course topic understanding, and their relationship with students’ level of math anxiety, need for cognition, and learning strategies. A total of 196 participants voluntarily took part in this study. Results revealed that a higher level of math anxiety leads to a higher level of perceived learning difficulty for topics in the course and leads to a lower level of content understanding of the topics. For topics related to “Research Methods and Measurement,” a higher level of need for cognition results in a lower level of perceived learning difficulty and results in a higher level of content understanding. Use of critical thinking learning strategy has a significantly positive effect on perceived content understanding of topics related to “Research Methods and Measurement,” as does elaboration learning strategy on that of “Statistics.”     

Evaluation of the KA24 (Knowledge Access 24) service for health- and social-care staff in London and the south-east of England. Part 1: quantitative

AIMS AND OBJECTIVES: This two-part paper aims to identify the main transferable lessons learned from both the quantitative and qualitative evaluations of the Knowledge Access 24 (KA24) service of online databases and selected full-text journals for health and social care staff in London and the south-east of England. The quantitative evaluation analysed usage rates and user registration with the objective of measuring uptake by previously disadvantaged staff, and to inform the subsequent qualitative survey. METHODS: User and usage data were analysed by type of NHS Trust, by type of user, and by what was being used. The evaluation assessed development in user registration and usage of both databases and journals over a 2-year period. Data were aggregated and analysed both monthly and quarterly. RESULTS: Usage levels increased, but uptake in both the mental health and primary care sectors was comparatively slow. Nurses and allied professionals used the service more than doctors. The increase in usage of full-text journals over the usage of databases was marked. CONCLUSIONS: Previously disadvantaged staff used electronic resources. A qualitative survey was needed to identify the main enablers and barriers to uptake.