Childhood Maltreatment and Early Developmental Vulnerabilities at Age 5 Years

This study examined associations between maltreatment and early developmental vulnerabilities in a population sample of 68,459 children (M_age = 5.62 years, SD = .37) drawn from the Australian state of New South Wales, using linked administrative data for the children and their parents (collected 2001–2009). Associations were estimated between (a) any maltreatment, (b) the number of maltreatment types, and (c) the timing of first reported maltreatment and vulnerability and risk status on multiple developmental domains (i.e., physical, social, emotional, cognitive, and communication). Pervasive associations were revealed between maltreatment and all developmental domains; children exposed to two or more maltreatment types, and with first maltreatment reported after 3 years of age, showed greater likelihood of vulnerability on multiple domains, relative to nonmaltreated children.     

Focusing on the Whole Student: An Evaluation of Massachusetts's Wraparound Zone Initiative

We used a comparative interrupted time series design to examine the impact of the Massachusetts' Wraparound Zone Initiative on student achievement, attendance, retention, and suspension. This initiative was designed to create coordinated district systems that allow schools to proactively and systematically address students' nonacademic needs. The state education agency awarded grants to seven high-need districts, each of which used the funds to support a select group of schools in implementing strategies that focused on school climate and culture, family engagement, systems to identify and address student needs, and community partnerships. Results from this study showed that students in Wraparound Zone schools performed better on state academic assessments than students in comparison schools, when considering prior achievement trends. Effects were statistically significant in the 3rd year of implementation. The impact on academic achievement was greatest for third- and fourth-grade students, and was particularly strong for English learners. There was no statistically significant overall impact on attendance, retention, or suspension.     

Public library facility closure: An investigation of reasons for closure and effects on geographic market areas

Through a nationwide survey of potential public library closures from 1999–2003 (the most recent federal dataset at the time of the study), the researchers assessed the reasons for public library closure, actions taken to alleviate possible loss of library services and resources, and the potential effects on users from the librarians' perspective. Geographic information systems (GIS) was used to analyze the demographics and socioeconomics of the geographic market areas around permanently closed library facilities and compared with national averages from the 2000 U.S. Census. The study found a variety of factors lead to closure; however, a lack of use, a sudden reduction in funding, and the opening of another library facility were the most common closure reasons. The actions taken by the community or library system to alleviate the loss of library services and resources depended on the circumstances of each closure. The geographic market areas around permanently closed facilities tended to include poorer and less educated patrons, and more renters than homeowners when compared to the national average from the 2000 U.S. Census. The study presents a methodology using GIS to describe libraries' geographic market areas and illustrates the need for further exploration into reasons for public library closures and the effects of facility site location, relocation, and permanent closure on potential users.     

‘Yes we are inclusive’: Examining provision for young people with disabilities in community sport clubs

The last two decades within Australia have witnessed a range of policies and strategies seeking to promote the inclusion of young people with disabilities within mainstream community sport clubs. Whilst research at an institutional level has highlighted the problems with mainstreaming agendas, few studies have examined how grassroots clubs, as key components of the supply side of inclusive provision seek to respond to such policy imperatives. In this paper, therefore, the authors provide a critical analysis of the ways in which clubs engage with inclusion policies in practice. Theoretically, the authors draw on the concept of policy enactment and educational inclusivity. Through analysis of semi-structured interviews with club volunteers, the findings illustrate three key areas. Firstly, the importance of individual volunteers in establishing and developing provision within clubs; secondly, the largely separatist nature of disability provision within clubs; and thirdly, that policies tend to encourage club to focus on narrow forms of participation that lead to competitive pathways and mirror the structure of mainstream sport. In the conclusion, the authors problematize the notion of inclusion presented in policy and practice, suggesting such imperatives do not encourage a holistic approach.     

The effect of altered pitch length on performance and technique in junior fast bowlers

The aim of this study was to assess the effect of pitch length (20.12 m [full length], 18 m and 16 m) on the fast bowling performance and technique of junior cricketers. Performance measures included ball release speed and accuracy, while technique variables evaluated were those shown to be related to the aetiology of lower back injury. Thirty-seven fast bowlers from the under-11 (n=14), under-13 (n=11) and under-15 (n=12) age groups were filmed bowling five deliveries at each of the above pitch lengths. Two synchronized NAC video cameras operating at 200 Hz permitted three-dimensional reconstruction of the hip and shoulder alignments, while a standard digital video camera operating at 50 Hz (positioned perpendicular to the bowling action) was used to measure front knee angle and ball release speed. Accuracy scores were taken from a zoned target at the batsman's stumps. A two-way analysis of variance with repeated measures (with age and pitch length as the between- and within-participant variables, respectively) was used to compare each age group at the 0.05 significance level. Results showed that accuracy improved in all age groups at shorter pitch lengths, although ball velocity remained constant throughout all trials. Shoulder counter-rotation increased significantly for the under-13 bowlers when bowling on the full-length pitch in comparison with the two shorter lengths. Counter-rotation also increased on the full-length pitch in the under-11 age group, although this increase was not significant. The under-15 bowlers' techniques did not change as pitch length increased. As under-11 and under-13 bowlers adopted a "safer" bowling action with superior accuracy on the 18?m compared with the full length pitch, it was concluded that these age groups should bowl on an 18?m pitch to reduce the likelihood of lower back injuries and improve accuracy.     

Application of the LaGrange polynomial in skeletal muscle fatigue analysis

The percentage of decrement in torque and the number of serial contractions are mutually exclusive methodological controls in the study of muscular fatigue. This paper examines the feasibility of using the LaGrange polynomial in the analysis of voluntary muscular fatigue patterns. Twenty-one men (ages 20-60 years) reported to the orthopedic biomechanics laboratory on 2 days separated by 4 months. During both sessions, participants completed three maximal isokinetic (180 deg x s(-1)) contractions of the knee extensors to serve as baseline, before starting the fatigue protocol. The fatigue protocol consisted of serial contractions until a 50% strength decrement was reached. The LaGrange polynomial was first used to interpolate the individual fatigue pattern for each participant into 15 data points (trials). Data analysis was then conducted on these 15 data points. Intraclass correlation analysis of variance showed that the reliability of baseline torque was very good (.93). Baseline torque, the average of three trials, exhibited a 5.4 Nm (6%) increase from the first to second test session (p < .05). The mean level of torque, average of the 15-point fatigue pattern, also increased 7.5 Nm (15%) on the second test session (p < .05). The classic torque deficit for the first trial of a fatigue series was preserved by the interpolation method. Serial contractions resulted in an average decrease in torque of 29.5 Nm (50%) from the first to last trial (p <.05). The interpolation method also retained the linear and quadratic trend components commonly observed for isometric and isokinetic fatigue patterns. The two trend components accounted for 94.7% of the total trial variance. It was concluded that the LaGrange polynomial used to interpolate fatigue patterns to fewer data points was successful.