Concurrent and longitudinal neuropsychological contributors to written language expression in first and second grade students     

Stephen R. Hooper  Lara-Jeane Costa  Matthew McBee  Kathleen L. Anderson  Donna C. Yerby  Sean B. Knuth  Amy Childress 《Reading and writing》2011,24(2):221-252

The primary purpose of this study was to examine several key questions related to the neuropsychological contributors to early written language. First, can we develop an empirical measurement model that encompasses many of the neuropsychological components that have been deemed as important to the development of written language? Second, once derived, will the neuropsychological components of this model remain stable over first and second grades or will the model change in its composition? Third, will the strength of the relationships between neuropsychological components and writing outcomes be constant over time, or will the strength of the relationships change over time? Finally, will the derived empirical model show significant concurrent and predictive relationships with written expression? The sample included 205 first grade students recruited from a single school district who were followed into the second grade via two cohorts: Measures were aligned with major neuropsychological components as extracted from theoretical models of written expression and available empirical findings examining the neuropsychological contributors to writing in children. These domains included fine-motor speed, language, short-term memory, long-term memory, and various attention/executive functions including working memory. Confirmatory factor analyses (CFAs) and longitudinal structural equation modeling (SEM) methods documented that three core latent traits were present and stable at both grades 1 and 2: Fine-Motor, Language, and Attention/Executive Functions. The overall model was highly related to written expression and spelling at both grades 1 and 2, with the first grade latent traits accounting for 52 and 55% of the variance in second grade written expression and spelling, respectively. At both grades, the Language and Attention/Executive Functions latent traits were more highly associated with written expression and spelling than the Fine-Motor latent trait.  相似文献   

Electronic detection of dielectrophoretic forces exerted on particles flowing over interdigitated electrodes     

Nikolic-Jaric M  Romanuik SF  Ferrier GA  Cabel T  Salimi E  Levin DB  Bridges GE  Thomson DJ 《Biomicrofluidics》2012,6(2):24117-2411715

Dielectric particles flowing through a microfluidic channel over a set of coplanar electrodes can be simultaneously capacitively detected and dielectrophoretically (DEP) actuated when the high (1.45 GHz) and low (100 kHz–20 MHz) frequency electromagnetic fields are concurrently applied through the same set of electrodes. Assuming a simple model in which the only forces acting upon the particles are apparent gravity, hydrodynamic lift, DEP force, and fluid drag, actuated particle trajectories can be obtained as numerical solutions of the equations of motion. Numerically calculated changes of particle elevations resulting from the actuation simulated in this way agree with the corresponding elevation changes estimated from the electronic signatures generated by the experimentally actuated particles. This verifies the model and confirms the correlation between the DEP force and the electronic signature profile. It follows that the electronic signatures can be used to quantify the actuation that the dielectric particle experiences as it traverses the electrode region. Using this principle, particles with different dielectric properties can be effectively identified based exclusively on their signature profile. This approach was used to differentiate viable from non-viable yeast cells (Saccharomyces cerevisiae).  相似文献   

Designed by the pupils,for the pupils: an autism‐friendly school     

Keith McAllister  Sean Sloan 《British Journal of Special Education》2016,43(4):330-357

There is growing interest in promoting autism‐friendly environments, especially in a school setting. Findings to date have generally advocated an accepted reductionist or generalist approach when providing an autism‐friendly built environment. However, previous studies, while very well intentioned, have rarely involved those with autism spectrum condition (ASC) to comment on and then instruct designers on what, for them, constitutes an autism‐friendly learning environment. If going to be truly inclusive, the authors contend that those who are most knowledgeable about ASC, those with ASC, should, whenever possible, be given the opportunity to comment on the design of our shared built environment. Hence this article first introduces some of the challenges faced by those with ASC in trying to cope with their surroundings, before proceeding to outline the development of a simple school design ‘jigsaw’ kit that helped pupils with ASC to communicate ideas for their perfect school. Used in four design workshops, secondary school aged pupils (aged 13 to 18) with ASC imparted their likes, dislikes and what was most important to them within the school environment. This facilitated comparison with current autism‐friendly guidelines and provides a valuable insight into the mind of the secondary pupil with ASC. It is hoped that by increasing awareness and then including those with ASC in describing what might constitute an autism‐friendly learning environment, it will help facilitate greater inclusion of the child with ASC into mainstream education and society at large.  相似文献   

Teaching Statistics – Despite Its Applications     

Jim Ridgway  James Nicholson  Sean McCusker 《Teaching Statistics》2007,29(2):44-48

Evidence‐based policy requires sophisticated modelling and reasoning about complex social data. The current UK statistics curricula do not equip tomorrow's citizens to understand such reasoning. We advocate radical curriculum reform, designed to require students to reason from complex data.  相似文献   

Improving Student Achievement by Overcoming Teacher Isolation     

Ronald W. Costello 《Clearing house (Menasha, Wis.)》2013,86(2)

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The Irish soccer split     

Sean Huddleston 《Sport in History》2019,39(1):103-105

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Kinematic analyses of seated throwing activities with and without an assistive pole     

Brendan Burkett  Mark Connick  Mark Sayers  Luke Hogarth  Tom Stevens  Mike Hurkx  Sean Tweedy 《Sports Engineering》2017,20(2):163-170

In Paralympic seated throwing events, the athlete can throw with and without an assistive pole. This study aimed to identify and compare performance-related kinematic variables associated with both seated throwing techniques. Twenty-nine non-disabled males (21.9 ± 2.6 years) performed 12 maximal throws using a 1-kg ball in two conditions (no-pole and pole). Automatic 3D-kinematic tracking (150 Hz) and temporal data were acquired. There was no significant difference between ball speeds at the point of release between conditions (no-pole = 12.8 ± 1.6 m/s vs. pole = 12.9 ± 1.5 m/s). There were four kinematic variables that were strongly correlated with ball speed when throwing with or without an assistive pole. These variables were elbow flexion at the start phase (pole r = .39 and no-pole r = .41), maximum shoulder external rotation angular velocity during the arm cocking phase (pole r = .42), maximum shoulder internal rotation angular velocity during the arm acceleration phase (pole r = .47), and should internal rotation angular velocity at the instant of ball release (pole r = .40). The pole clearly influenced the throwing technique with all four strongly correlated variables identified in this condition, compared to only one during the no-pole condition. When using the pole, participants produced significantly higher shoulder internal rotation angular velocities during the arm acceleration phase (pole = 367 ± 183°/s vs. no-pole = 275 ± 178°/s, p < .05) and at the instant of ball release (pole = 355 ± 115°/s vs. no-pole = 264 ± 120°/s, p < .05), compared to throwing without the pole. These findings have implications for the development of evidence-based classification systems in Paralympic seated throwing, and facilitate research that investigates the impact of impairment on seated throwing performance.  相似文献   

Towards a critical sport heritage: implications for sport tourism     

Gregory Ramshaw  Sean James Gammon 《Journal of Sport Tourism》2017,21(2):115-131

ABSTRACT

This paper reflects upon the development and increased acceptance for heritage becoming a key component of sport tourism research. The original sport heritage typology, as posited by Ramshaw and Gammon [2005, More than just Nostalgia? Exploring the heritage/sport tourism nexus. Journal of Sport & Tourism, 10(4), 229–241], is re-examined through a more critical lens, revealing additional dimensions that help augment its key components. More specifically, it is argued that future studies should consider the more intangible features of sport heritage, as well as acknowledging the expanding global nature of sport and its impact upon fandom. Also, the case is made for research to explore the dissonance inherent in much of sports heritage, as well as determining where the power lies in allocating and championing current sport heritages. Lastly, the more general implications to the field of sport tourism are offered with particular regard to motivation, place, and consumption.  相似文献   

Theory in sport tourism: some critical reflections     

Sean Gammon  Gregory Ramshaw  Richard Wright 《Journal of Sport Tourism》2017,21(2):69-74

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The systems design approach to developing computer based instruction     

Gerry Costello 《Performance Improvement》1993,32(5):11-13

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