The iPad in Library Instruction: Collaborative Inquiry for Information Retrieval

While iPads have grown in use for reference or circulation in academic libraries, the author investigates the potential for using iPads to teach information retrieval. A review of the technical logistics and classroom management strategies accompanies an appraisal of the pros and cons of teaching information literacy with tablets. In a collaborative, inquiry-based classroom, the iPads foster increased student engagement and mastery of search techniques.     

Between-limb asymmetry in kinetic and temporal characteristics during bilateral plyometric drop jumps from different heights

ABSTRACT

This study investigated the between-limb asymmetry in kinetic and temporal characteristics during bilateral plyometric drop jumps from different heights. Seventeen male basketball players performed drop jumps from 3 heights on two platforms in randomized orders. Vertical ground reaction force data were analysed with respect to the lead limb (i.e. the limb stepping off the raised platform first) and trail limb. Peak forces and loading rates of each limb were calculated. The absolute time differential between the two limbs at initial ground contact and takeoff were determined. The frequency of symmetrical landing and taking off with “both limbs together” were counted using 3 time windows. Results showed that the lead limb displayed higher peak forces and loading rates than the trail limb across all heights (p <.05). As drop height increased, the absolute time differentials decreased at initial ground contact (p <.001) but increased at takeoff (p =.035). The greater the preset time window, the more landings and takeoffs were classified as bilaterally symmetrical. In conclusion, higher drop heights allowed subjects to become more bilaterally symmetrical in the timing of landing but this reduction in temporal asymmetry did not accompany with any reduction in kinetic asymmetry.     

Effect of attending to a ball during a side-cut maneuver on lower extremity biomechanics in male and female athletes

Many sports associated with anterior cruciate ligament (ACL) injury require athletes attend to a ball during participation. We investigated effects of attending to a ball on lower extremity mechanics during a side-cut maneuver and if these effects are consistent for males and females. Sagittal and frontal plane hip and knee kinematics and joint moments were measured during side-cut maneuvers in 19 male and 19 female National Collegiate Athletic Association division III basketball players. Participants also experienced two side-cut conditions that required attention to a ball. Our results did not indicate that the effect of attention varies with gender. However, during side-cut conditions while attending to a ball, internal knee adductor moment was 20% greater (p = 0.03) and peak knee flexion angle was 4° larger (p < 0.01). Females demonstrated 5° less hip flexion (p = 0.046), 12° less knee flexion (p < 0.01), and 4° more knee abduction (p = 0.026) at initial contact during all side-cut conditions than males. Attention to a ball may affect lower extremity mechanics relevant to ACL injury. The validity of laboratory studies of lower extremity mechanics for sports that include attention to a ball may be increased if participants are required to attend to a ball during the task.     

Cooperation,competition and coopetition in innovation communities

This study explores competitors’ engagement in innovation communities. Some view working with competitors as a risky endeavour, some see it as potentially beneficial and others take it as something in-between. We address this issue by posing two questions: (1) why do rival firms cooperate, compete or ‘coopete’ (a syncretic approach); and (2) how do rival firms engage in these activities? To achieve this, we first review the relevant literature to construct conceptual arguments, and then investigate three innovation communities in the UK. The findings concern the importance of common and conflicting interests as fundamental drivers of a firm’s cooperative and competitive stance in an innovation community. While a ‘win–win’ strategy has been over-emphasised, data reveal that the fear of ‘lose–lose’ is vital to drive firm cooperation. Finally, our study suggests that rival relationships link to a strategic incentive alignment between common and conflicting interests; that is, rivals cooperate when common interests are higher, and compete on other occasions. Data seem to suggest that in a conflicting situation firms often maximise their private benefits at the expense of common interests. Data also suggest that this alignment varies in different innovation stages and in both an inter-organisational and an intra-organisational setting. This paper contributes to the existing work on the competitive/relational strategy of firms in the innovation space.     

Relations between Risk for Sleep-Disordered Breathing,Cognitive and Executive Functioning,and Academic Performance in Six-Year-Olds

ABSTRACT

Research Findings: Optimal sleep is important for children’s learning and development. Sleep disordered breathing (SDB) refers to a spectrum of conditions from simple snoring to obstructive sleep apnea that is common in childhood and interrupts sleep. We examined pathways between SDB and academic performance of children (N = 163, M age = 6.2 years) one year after school entry. Measures included parent questionnaire and clinical assessment of SDB, standardized tests and rating scales of cognitive and executive functioning, researcher-administered literacy and numeracy tasks, and teacher-reported academic performance. Structural equation modeling (SEM) revealed direct and indirect paths between SDB and poorer academic performance. In indirect models, children’s SDB severity score was significantly linked to poorer executive functioning (β = .38, p < .01) and negatively associated with nonverbal reasoning (β = ?.21, p < .01). Poorer executive functioning, in turn, was negatively related to the verbal composite (β = ?.61, p < .01), with verbal and nonverbal composites associated with academic performance (βs = .56, .27, respectively, p’s < .01). Practice or Policy: These findings point to the need for attention to SDB and its links to potential cognitive sequelae across early development. Practitioners equipped with knowledge of SDB symptoms can facilitate referral for appropriate consultation and evaluation.     

The relationship between child care subsidies and children's cognitive development

Child care subsidies help low-income families pay for child care while parents work or study. Few studies have examined the effects of child care subsidy use on child development, and no studies have done so controlling for prior cognitive skills. We use rich, longitudinal data from the ECLS-B data set to estimate the relationship between child care subsidy use and school readiness, using value-added regression models as well as parametric and non-parametric models with propensity score matching. Compared to a diverse group of subsidy non-recipients in various types of non-parental care as well as parental care only, we find that child care subsidy use during preschool is negatively associated with children's math skills at kindergarten entry. However, sensitivity analysis suggests that these findings could be easily overturned if unobserved factors affect selection into subsidy receipt.     

Phonological awareness predicts activation patterns for print and speech

Using fMRI, we explored the relationship between phonological awareness (PA), a measure of metaphonological knowledge of the segmental structure of speech, and brain activation patterns during processing of print and speech in young readers from 6 to 10 years of age. Behavioral measures of PA were positively correlated with activation levels for print relative to speech tokens in superior temporal and occipito-temporal regions. Differences between print-elicited activation levels in superior temporal and inferior frontal sites were also correlated with PA measures with the direction of the correlation depending on stimulus type: positive for pronounceable pseudowords and negative for consonant strings. These results support and extend the many indications in the behavioral and neurocognitive literature that PA is a major component of skill in beginning readers and point to a developmental trajectory by which written language engages areas originally shaped by speech for learners on the path toward successful literacy acquisition.

Enhancing Practice Through Clinically Rich Methods Courses in Physical Education: Perceptions of Preservice Teachers and Their Cooperating Teachers

Similar to other teacher education disciplines, Physical Education Teacher Education (PETE) must adjust to calls for clinically rich teacher preparation because knowledge learned in PETE does not easily transfer to cultures of schools, classrooms, and gymnasia. Opportunity exists to understand more about clinically rich PETE courses, particularly through lenses of those engaged in clinical practice. Framed by occupational socialization theory, this research examined perspectives of university faculty, 11 preservice teachers and two cooperating teachers during clinically rich methods courses in a PETE program. We analyzed data using inductive analysis and constant comparison. Preservice teachers reported enjoying more realistic experiences and enhanced confidence. Cooperating teachers appreciated staying in touch with best practices in the field, and the responsibility of preparing new teachers. The findings suggest the value of a practice-to-theory approach, and created professional learning opportunities for all stakeholders.     

Can pluralistic approaches based upon unknown languages enhance learner engagement and lead to active social inclusion?

One way to foster active social inclusion is to enable students to develop a positive attitude to “foreignness”. Creating a situation where mainstream students are less wary of foreign languages and cultures, and where newcomers feel their linguistic background is being valued, provides favourable conditions for the inclusion of these newcomers in the classroom and in society. However, language classrooms in French schools rarely take any previously acquired linguistic knowledge into account, thus unconsciously contributing to the rift between multilingual learners (e.g. 1st- and 2nd-generation immigrant children, refugees, children of parents with different mother tongues) and French learners. Native French learners’ first experience of learning another language is usually when English is added as a subject to their curriculum in primary school. In some schools in France, English lessons now include the simulation of multilingual situations, designed in particular for the French “quasi-monolingual” students to lose their fear of unknown languages and “foreignness” in general. But the overall aim is to help both groups of learners become aware of the positive impact of multilingualism on cognitive abilities. However, to achieve long-term effects, this awareness-raising needs to be accompanied by maximum engagement on the part of the students. This article explores an instructional strategy termed Pluralistic Approaches based upon Unknown Languages (PAUL), which was designed to develop learning strategies of quasi-monolingual students in particular and to increase learner engagement more generally. The results of a small-scale PAUL study discussed by the author seem to confirm an increase in learner engagement leading to an enhancement of learning outcomes. Moreover, PAUL seems indeed suitable for helping to prepare the ground for social inclusion.