Applying a Software Development Product Cycle to Library Technology Adoption and Development

Product cycles have long been used in software development, but libraries can also benefit from a structured product life cycle to help manage technology development and acquisition. This article outlines a proposed product cycle for library technology management with information on implementing each step of the cycle. It will also include information for librarians assessing the success of structured technology management.     

运用PDCA管理方法全面提升办刊质量——以《肿瘤影像学》杂志为例

通过PDCA 的管理方法,结合《肿瘤影像学》实际情况,全面分析杂志的现状与问题,从编委的履职能力、优质稿源的吸引、期刊推广、编校质量的提高等方面入手,分析原因,提出改进建议和策略,提升了杂志的影响力,成功进入中国科技核心期刊.本次PDCA 循环在学术期刊中的成功应用,具有良好的可操作性和实践性,以期为其他杂志的发展提供一定的参考和借鉴.     

饱和链烷烃沸点的拓扑研究

本文从距离矩阵和邻接矩阵出发,结合矩阵的数学知识,提出了一种新的拓扑指数Qx=(W×V)1/8,用最小二乘法拟合b.p.(℃),得到线性回归方程为:b.p.(℃)=-277.814+165.248Qx(r=0.993)     

Elementary school children’s understanding of science: The implementation of an extracurricular science intervention

The promotion of students’ achievement and competence in the so-called STEM disciplines is one cornerstone of current educational research and practice. In particular, as early as elementary school, the fostering of an adequate understanding of science is a normative goal of science education. It facilitates students’ science learning and enables them to understand the nature and development of scientific knowledge. Based on the relevance of the promotion of young children’s understanding of science, a corresponding science intervention was recently developed and successfully evaluated in a first study under highly controlled conditions. The goal of the present study was to investigate the effectiveness of this intervention when implemented in practice. One hundred seventeen third- and fourth-grade students and 10 trained course instructors participated in this study. We applied a randomized block design with waitlist control groups and repeated measures. The results revealed that children assigned to the intervention compared with children assigned to the waitlist control group showed better inquiry-related methodological competencies (a better understanding of the scientific inquiry cycle and experimentation strategies) and a higher need for cognition. The findings point to the successful implementation of the intervention and are compared with the results of the first study.     

从教与学的良性循环探讨大学英语课堂教学互动

在以学生为主体的课堂上,教与学是一种互动的形式。在英语教学中,教师应当善于且有效地实施互动模式,加强师生间交流,促进教与学的良性循环。     

基于系统动态学方法的弱信号生命周期建模与仿真

[目的/意义]为增强弱信号的内涵研究，对其全生命周期过程下的各阶段要素以及要素间的联系进行探寻，以期获得一定程度上的理论贡献，同时也为相关组织在开展弱信号管理实践时提供理论指导。[方法/过程]在对弱信号概念研究现状进行梳理的基础上，结合意义构建理论给出了弱信号概念界定。随后，通过与信息生命周期、新兴议题生命周期进行类比，提出弱信号生命周期理念。进而采用系统动态学方法开展系统思考，使用因果回路图进行系统建模，运用存量流量图进行仿真模拟。[结果/结论]弱信号生命周期包含4个阶段：侦测、关联、传递、抉择，相应的系统动态学模型所具备的现实性得到验证，且通过情景模拟确认了4个关键辅助变量：外界噪声干扰程度、弱信号分析效率、组织内相互信任程度、决策者信任程度。在整体研究的基础上，给出弱信号管理过程中可能会遇到的障碍以及应对策略。     

对“训练周期”理论的重新审视

马特维耶夫的“训练周期”理论应属于训练的指导思想，而不是具体的训练方案。竞技状态和训练安排出现的周期性，是科学的规律，训练中必须遵循。但“训练周期”理论不能作为具体的训练安排，由于运动训练受许多因素的制约，其任何一种因素发生变化，必然导致整个训练过程实施周期发生改变。因此，必须依据训练的实际变化适时对训练周期进行适当的调节，同时，周期的划分和具体的训练方法应该依项目特点等情况来安排。     

教师课堂教学质量的综合评价

传统的课堂教学评价方法不能公正、合理地去评价教师的教学水平和课堂教学质量，存在较多弊端。为了弥补传统教学评价的不足，改善测评效果，拟建立科学、合理的课堂教学质量考核指标体系，确定规范的考核标准，运用模糊综合评价模型对课堂教学质量进行评价。     

一位院士的情怀对科技期刊编辑的启示——阅读《大家博友》《大师小文》的感悟

针对学术期刊数字化程度与影响力提升的效应问题,重点对江苏省17种中文地学类期刊的网络化建设及应用程度做了调研和量化分析,并将其数据与统计期刊近5年的影响因子和被引频次做了分析比较.结果显示,被统计期刊学术影响力指标的上升趋势,与评价期刊数字化应用程度高低的得分值有很好的对应关系.进一步分析结果表明,代表期刊数字化程度较高的微信运用,有可能对提升科技期刊学术影响力起到意想不到的推动作用.     

Ott循环中温度的Lorentz变换

在介绍汤川秀树理想实验的基础上，指出其存在的不足，并对其进行修正，从而再次得到运动参考系中物体温度降低的P—E理论结论。