网络环境下高校图书馆的全面创新研究

本文从高校图书馆管理创新、技术创新、人力资源创新和信息服务创新等几个方面阐述了图书馆要生存、要发展,应积极迎接挑战,不断地改革和创新,最大限度地满足读者对信息的利用需求,为学校的教学、科研提供最优质的保证.参考文献7.     

Detecting potential hucksterism in meta-analysis using a follow-up fail-safe test

Meta-analysis is an analysis of analyses. It is a technique widely used by researchers and practitioners to aggregate and summarize statistically reported empirical educational research. In 10 years, meta-analysis appeared more than 600 times in research journals and dissertation abstracts. Although most meta-analyses were reported as significant, few of the findings determined how many unpublished “no-effect” studies, if sampled, would have invalidated significance. If significant meta-analysis results are over represented through selective sampling, hucksterism in the form of sampling bias exists. An explanation for using a follow-up test called the fail-safe N is provided with tables constructed to assist researchers and practitioners to estimate, without calculation, the relative stability of meta-analysis results. The implication is that failsafe N should routinely be used and reported in meta-analysis research.     

绿色农业控制系统创新实践教学平台设计

以绿色农业应用为背景,融入现代科技设计创新实践教学平台.系统设计了清洁能源系统、能源储存系统、信息采集系统、智能温室控制系统、中央控制系统、人机交互以及云平台应用系统,实现能源自给自足、环境信息采集与存储、无线区域组网、系统信息显示与预警、智能控制等功能.系统内各功能部分,采用独立的模块化设计,易于组装移植,综合性、开...     

IQ and achievement: 1930s to 1980s

One hundred thirty-eight fifth-grade students from three upstate New York school districts were administered a 1930s version of the Pintner General Ability Tests: Verbal Series. Scores from this test were compared and correlated with scores from current IQ and achievement tests. The Pintner means were similar to those of the current IQ tests; the correlations of the Pintner with the other tests were of the same order as those typically reported among contemporary measures; and item difficulty, as indicated by rank order, appeared similar for the current sample and the 1930s norm groups. The findings are discussed with reference to research that has shown sharp increases in IQs of Americans since the 1930s and questions concerning changes in mental ability measures.     

The retrograde motion of planets and children: Interpreting percentile rank

A common method used to interpret raw scores is to convert them into percentile rank. The broad application of percentile rank in almost all norm-referenced tests, and the exclusive use in some tests, requires the conversion of raw scores. Because percentile rank is not a linear transformation of raw scores, percentile-rank transformation in the lower and upper part of the raw-score distribution relates percentile rank and raw scores differently than in the center of the raw-score distribution. This paper describes the popularity of using percentile rank and offers an interpretation of the use of percentile rank with normal and skewed score distributions.     

Crisis intervention teams in the schools

When a crisis occurs in the school setting, school officials must be prepared to handle the situation effectively and efficiently. One of the ways school officials can handle a crisis situation is through the use of crisis intervention teams. The steps in establishing a crisis intervention team in a school setting include: determining goals, performing a needs assessment, finding model programs, developing a membership pool, developing a training program, preparing and maintaining a list of resources and plans for support services, establishing a communication network, designating a base of operations, planning team meetings, keeping records, and implementing the phases of debriefing. A crisis management scenario is presented and discussed in terms of the steps.     

Robotic automation of droplet microfluidics

Droplet microfluidics enables powerful analytic capabilities but often requires workflows involving macro- and microfluidic processing steps that are cumbersome to perform manually. Here, we demonstrate the automation of droplet microfluidics with commercial fluid-handling robotics. The workflows incorporate common microfluidic devices including droplet generators, mergers, and sorters and utilize the robot''s native capabilities for thermal control, incubation, and plate scanning. The ability to automate microfluidic devices using commercial fluid handling will speed up the integration of these methods into biological workflows.