Resistive pulse sensing of magnetic beads and supraparticle structures using tunable pores

Tunable pores (TPs) have been used for resistive pulse sensing of 1 μm superparamagnetic beads, both dispersed and within a magnetic field. Upon application of this field, magnetic supraparticle structures (SPSs) were observed. Onset of aggregation was most effectively indicated by an increase in the mean event magnitude, with data collected using an automated thresholding method. Simulations enabled discrimination between resistive pulses caused by dimers and individual particles. Distinct but time-correlated peaks were often observed, suggesting that SPSs became separated in pressure-driven flow focused at the pore constriction. The distinct properties of magnetophoretic and pressure-driven transport mechanisms can explain variations in the event rate when particles move through an asymmetric pore in either direction, with or without a magnetic field applied. Use of TPs for resistive pulse sensing holds potential for efficient, versatile analysis and measurement of nano- and microparticles, while magnetic beads and particle aggregation play important roles in many prospective biosensing applications.     

Developing participation opportunities for young people with disabilities? Policy enactment and social inclusion in Australian junior sport

Abstract

Interventions aimed at increasing the participation of young people with disabilities in recreational sport have had mixed success. The authors draw on in-depth interviews with representatives from State Sporting Associations, local government officers and volunteers within community sports clubs in Victoria, Australia, to examine why some sports clubs are unable or unwilling to translate policy ambitions into practice. The findings indicate how by framing disability provision as ‘too difficult’, ‘not core business’ and antithetical to competitive success, community sports clubs are able to resist policy ambitions to modify existing structures and develop more inclusive practice. Greater priority needs to be given to transformational inclusion objectives and challenging ableism if clubs are to structurally progress the development of participation opportunities for young people with disabilities.     

Reviews

Moyle, Donald (compiler) (1979) Teaching Reading. Peddie, W. S. & White, G. R. (1978). Testing in Practice–a guide to the preparation and marking of tests, formal examinations and informal assessments. Drummond, Don and Wignell, Edna (Editors), 1979. Reading: A Source Book. Roswell, Florence G. and Chall Jeanne S., (1979). Roswell Chall Diagnostic Reading Test of Word Analysis Skills.     

Empirical testing of a cognitive model to account for neuropsychological functioning underlying arithmetic problem solving

The efficacy of a cognitive-based arithmetic problem-solving model (Dinnel, Glover, & Halpain, in press; Dinnel, Glover, & Ronning, 1984) was tested using 989 students with learning disabilities. Comprehensive neuropsychological test battery information was used to predict composite arithmetic test performance as a means of examining the utility of this model. Results of this study offer support for Dinnel et al.'s (Dinnel, Glover, & Halpain, in press; Dinnel, Glover, & Ronning, 1984) model in accounting for arithmetic performance under continuous visual stimulus conditions. However, these data indicate a more complex neuropsychological underpinning to arithmetic performance in both visual and aural stimulus conditions. The neuropsychological aspects of arithmetic problem solving were discussed in relationship to this cognitive-based model.     

Cats,Comics, and Knausgård: Promoting Student Reading at a U.K. Academic Library with a Leisure Reading Collection

This case study describes the creation of a leisure reading collection in the Clifford Whitworth library at the University of Salford. It briefly surveys existing literature on leisure reading collections and looks at the growing interest among U.K. academic libraries in recreational reading. It considers the reasons for promoting reading as a leisure activity to students and describes the processes of selecting, purchasing, and marketing the collection at Salford. It also considers possible future developments for the collection and the evaluation of the library's attempts to encourage a culture of reading among Salford students. The positive response to the collection suggests the development of leisure reading is a worthwhile activity for academic libraries to focus on and the study contains useful information for others who are interested in creating a similar collection.     

Racial Perceptions of Young Children: A Review of Literature Post-1999

It has been argued that intervention strategies designed to reduce racial prejudice in young children have been based on weak theoretical models of racial stereotyping and prejudice with little effect on the reduction of racial bias. This paper examines the social-cognitive and intergroup scholarship post-Bigler (J Soc Issues 55(4), 687–705, 1999), with an emphasis on the development of racial prejudice in young children. The purpose of this paper is not to argue for a particular theoretical approach, but to provide an overview of some of the important pieces of research. Findings indicate that social learning and cognitive development models need to be understood when implementing curriculum designed to reduce racist beliefs and attitudes in young children.     

技术发展与业务需求双驱动下的物联网演进

伴随着信息与通信领域的关键技术以及产业背景下新型业务需求的发展,物联网的关注重点、关键支撑技术以及服务形式都在持续地变化。自20世纪90年代末物联网概念被提出至今,物联网的代际演进可以系统地梳理为具有不同特征的三个阶段,包括注重物体标记的初代物联网、注重物体联网的二代物联网以及引入了社交网络的新型社交物联网。为了构建完整的物联网系统,应深刻地理解技术发展和产业需求是如何驱动物联网的代际演进,并在此基础上,谋求关键技术的选用和协同,以提供适应物联网设备和应用特征的解决方案。     

Faith schools,social capital and academic attainment: Evidence from TIMSS‐R mathematics scores in Flemish secondary schools

Social capital theory, recent developments in the theory of identity and a small econometric literature all suggest positive attainment effects from faith schooling. To test this hypothesis, the authors use a unique data set on Flemish secondary school students from the 1999 repeat of the Third International Mathematics and Science Study to estimate an education production function. The results suggest modest attainment benefits in mathematics when schools are influenced by faith communities but not when they are influenced by trade unions or business groups. The authors estimate models with exogenous and endogenous switching to investigate the robustness of this result to school selection policy and parental/student self‐selection. These additional results not only suggest that the positive attainment effects of faith schooling do not reflect selection bias but also provide evidence suggesting that such attainment effects reflect forms of social capital that are more readily available in faith schools than in non‐faith schools. However, the limitations of social capital theory and evidence caution against radical policy conclusions.     

Pedagogical constraints of physical literacy based on cognitive load theory

PROSPECTS - While numerous studies have highlighted the benefits of physical activity on cognitive health, learning, and executive function, maintaining physical activity throughout one’s...