基于主题关联的Altmetrics演进动态识别

Altmetrics是Web2.0时代一种新兴的计量方法并受到国内外学者的认同、关注与研究。识别国际Altmetrics主题演进动态,发现国际Altmetrics知识演化规律,从而为我国Altmetrics的研究提供借鉴或参考。基于此,本文运用Sci MAT软件绘制了Wo S中的2012—2015年Altmetrics研究文献的覆盖图、演进图、战略图三种知识图谱,以期识别出国际Altmetrics演进动态。研究发现:Altmetrics研究以传统计量学的理论方法为基础,其理论体系覆盖文献计量学、科学计量学、信息计量学和网络计量学;研究主题由学术影响研究向学术影响研究和社会影响研究转变;计量数据由引文数据向引文数据和社交媒体数据转换。因此,Altmetrics有着广泛的研究、应用与发展空间,值得研究人员尤其是计量研究人员的关注、重视及研究。     

Business Intelligence Capabilities and Firm Performance: A Study in China

The development of artificial intelligence (AI) technology expands the boundary of business practice, inducing the emergence and application of business intelligence (BI) that has promoted the transformation of information techniques to optimize business decision and operation. However, there is a lack of theoretical consensus and measurement of the technology embedded in BI at present. This study exploratively develops the Sense-Transform-Drive (STD) conceptual model of BI based on dynamic capabilities theory and organizational evolutionary theory to explain the core BI capabilities. By using factoring analysis and structural equation modeling analysis, we extract the latent constructs and empirically verify the validity of the STD model and further examine the correlation and mode of interaction of the three core BI capabilities and the impact of BI application on firm performance in the real economy with a sample contextual to Chinese business practices. The study results show that there are direct and high-intensity cumulative positive effects among the structural components of the STD conceptual model and BI-related dynamic capabilities can enhance operating efficiency and firm performance.     

Exploring Verbal,Visual and Schematic Learners' Static and Dynamic Mental Images of Scientific Species and Processes in Relation to Their Spatial Ability

The current study compared different learners’ static and dynamic mental images of unseen scientific species and processes in relation to their spatial ability. Learners were classified into verbal, visual and schematic. Dynamic images were classified into: appearing/disappearing, linear-movement, and rotation. Two types of scientific entities and their related processes were investigated: astronomical and microscopic. The sample included 79 female students from Grades 9 and 10. For the purpose of the study, three instruments were used. The Mental Images by Guided Imagery instrument was designed to investigate participants' visualization of static and dynamic mental images. The Water-Level Task was adopted to estimate participants' spatial ability. The Learning Styles Inventory was used to classify participants into verbal, visual and schematic learners. The research findings suggest that schematic learners outperformed verbal and visual learners in their spatial ability. They also outperformed them in their vividness of microscopic images; both micro-static and micro-dynamic images; especially in the case of appearing/disappearing images. The differences were not significant in the case of astronomical images. The results also indicate that appearing/disappearing images received the least vividness scores for all three types of learners.     

An intervention in the Halliwick Method procedures (swimming) for a group of individuals with Downs syndrome

The purpose of this study was to intervene in the process of the Halliwick Method (swimming), in order to improve the method, or some of its aspects, for a sample of 14 individuals with Downs syndrome (aged six to 21 years), using both an individualized educational setting approach and a differentiation of the elements of the Halliwick Method. The pre-intervention phase included medical examination, IQ, measurement of the behaviour according to the Rutter Scale and a Test of Physical Performance for each subject. Next, the subjects were assigned to seven pairs of case studies, where each individual following a Halliwick Methods swimming programme was paired with an individual following a modified swimming programme based on the same method, on physical health variables, IQ, behaviour and motor abilities. The duration of each swimming programme was 24 weeks for each individual, at a frequency of once per week, for 40 minutes. In the light of the findings of this study, further recommendations for the improvement of Halliwick Method procedures were made, common factors that affected the performance of each individual were identified and their relation with performance was explored.     

浅析教育技术与数学模型方法

本文主要从教育技术学的理论、方法、实践等方面分析、论述了教育技术与数学模型方法之间的密切联系,指出对于教育技术学科建设和发展而言,数学模型方法正发挥着越来越重要的作用,阐述了数学模型方法对教育技术的学科研究和发展的重要作用和意义。     

高职教师绩效考核体系设计——基于AHP和Delphi Method的综合运用

高职教师绩效考核的核心是教师工作业绩细化指标的设计,它的设计与教学改革相关性最大,基于AHP和Delphi Method的综合运用,从一级指标的权重看,教师科研工作业绩明显大于教学工作业绩;从二级指标看,教学研究与改革的重要性正逐步被认识;教学工作虽是衡量工作业绩的第一要素,但其内容已经丰富化,不再局限于课堂教学;教学政策的评定也更加多样化。     

改变高维逐次积分次序的新解法

通过对二次积分次序的交换方法的分析，文章给出了改变三次及以上逐次积分次序的一种新方法——降维法来有效地求解重积分问题．     

在低频区具有大带隙的长方晶格二维光子晶体

利用降低光子晶体的对称性来提高绝对禁带宽度，在长方网格边上加正方介质柱而构成像素型长方晶格二维光子晶体，用快速平面波展开法计算其能带结构，通过参数优化，在低频区找到最大绝对禁带宽度△ωe=0．119ωe（ ωe=2πc／a，a为晶格常数，c为光速），绝对禁带中心频率ωmid=0．829ωe，△ω/ωmid=14，4％。     

Structural dynamic responses analysis applying differential quadrature method

INTRODUCTION The differential quadrature method (DQM) was proposed by Bellman and Casti as an analogous ex- tension of the quadrature method for integrals (Bellman and Casti, 1971; Bellman et al., 1972). It can be essentially expressed as the values of the de- rivatives at each grid point as weighted linear sums approximately of the function values at all grid points within the domain under consideration. As a distinct numerical solution technique to obtain the initial and/or boundary …     

从词义角度谈现在进行时言外之意

英语时态形式与意义不一致的现象是广大英语学习者在英语应用中很容易产生错误的地方。时态的意义和用法并不能以时态形式笼统解释。现在进行时不表示"正在进行"的原因正是动词本身的词义所决定的。根据词义,动词有静态动词和动态动词之分,现在进行时除表示"现在正在进行"的行为动作以外,还包括表示"过去"、"将来"、"渐进"、"重复"、"临时"、"描述"等意义。