TUT and TABU transitional filters

Transitional XY filters (TXY) are considered with characteristics that vary smoothly from those of filter X to those of filter Y as a parameter is varied continuously. Emphasis is placed on transitional ultraspherical—Thomson (TUT) filters and transitional ultraspherical “a”-ultraspherical “b” (TABU) filters.     

Do expenditures other than instructional expenditures affect graduation and persistence rates in American higher education?

During the last two decades, median instructional spending per full-time equivalent (FTE) student at American 4-year colleges and universities has grown at a slower rate than median spending per FTE student in a number of other expenditure categories, including academic support, student services and research. Our paper uses institutional level panel data and a variety of econometric approaches, including unconditional quantile regression methods, to analyze whether these non-instructional expenditure categories influence graduation and first-year persistence rates of undergraduate students.     

一个关于工作场所学习的建议性概念框架:对人力资源开发理论建设与研究的启示

人力资源开发领域的学者和实践者都非常关注工作场所学习。关于正式培训和非正式学习,一直以来形成了大量的研究和讨论。本文从人力资源开发角度,结合已有的大量文献,提出了一个工作场所学习的概念性框架,框架包括三个互相作用的变量:学习的场所、在发展和传授学习经验时所制定的计划的程度和学习过程中培训者、推动者和其他人的角色。本文还讨论了这一框架对人力资源开发领域中理论建设和研究的启示。     

Visual input enhancement via essay coding results in deaf learners' long-term retention of improved English grammatical knowledge

This study explored the efficacy of visual input enhancement, specifically essay enhancement, for facilitating deaf college students' improvement in English grammatical knowledge. Results documented students' significant improvement immediately after a 10-week instructional intervention, a replication of recent research. Additionally, the results of delayed assessment documented students' significant retention of that improvement five and a half months beyond the instructional intervention period. Essay enhancement served to highlight, via a coding procedure, students' successful and unsuccessful production of discourse-required target grammatical structures. The procedure converted students' written communicative output into enhanced input for inducing noticing of grammatical form and, through essay revision, establishing form-meaning connections leading to acquisition. With its optimal design characteristics supported by theoretical and empirical research, essay enhancement is a highly effective methodology that can be easily implemented as primary or supplementary English instruction for deaf students. The results of this study hold great promise for facilitating deaf students' English language and literacy development and have broad implications for second-language research, teaching, and learning.