魔芋资源研究与开发利用综述

本文对魔芋资源的分布、资源量、特性及其经济价值进行了综述，对国内外魔芋资源研究与开发利用的历史、发展及其现状进行了调查研究，并探讨了魔芋资源开发利用趋势和前景。     

《情报学报》九五期间论文作者及引文的调查分析

本文调查了《情报学报》九五期间（1996－2000年）发表论文作者情况（作者发文选题分布、年龄结构分布、职称结构分布、性别结构分布、系统分布、地区分布和合作度）及发表论文引文情况（引文的数量、类型、学科、语种、年代、被引期刊和自引量），并对有关数据进行了定量分析。     

视频信息检索技术的发展及应用

今天视频检索的重要性已经越来越被人们所重视。本文总结了视频信息检索技术的发展历程、技术特点及国内外应用现状，最后预测了未来的发展趋势。     

产业集群和工业园区发展中的企业邻近与集聚辨析

在“产业集群”风靡我国的时候，两种倾向尤为显著：一是将企业集中到工业园区发展，二是在城市或区域内打造和拉伸产业链。这引发了两个基本的问题，其一，企业的地理邻近是否一定有利于企业和区域竞争力的提高？其二，产业链是否一定要在本区域中打造？本文回顾了国内外相关文献，并分析了我国的实例后提出，为提高区域和城市竞争力与创新能力，不仅要重视企业的地理邻近，更重要的是促进产业联系的形成和增强．既包括近距离的联系，也包括关系邻近而地理距离遥远的产业联系。那种简单地把产业集群与工业园区混淆，以及把产业集群发展看成本地产业链的打造都是有害的．     

区块链技术在网络舆情风险管理体系的应用研究

[目的/意义] 挖掘弹性管理和区块链理论在网络舆情风险管理体系建设的应用价值,克服传统管理体系的技术弊端,突破现有网络舆情风险管理的难点和痛点,提高网络舆情风险管理效率。[方法/过程] 基于网络舆情风险管理、弹性管理理论,确立网络舆情弹性风险管理的理论框架,进而应用区块链技术提出网络舆情风险管理系统体系,并对网络舆情风险识别和感知智慧分类账本、风险关联树以及智能合约进行详尽阐述。[结果/结论] 构建的舆情风险管理系统、区块链数据保障系统体系,及应用区块链技术的网络舆情风险识别和感知智慧分类账本、风险关联树、智能合约,使得舆情风险管理数据更安全、数据可追溯、组织弹性适应性更强,能有效指引有关系统开发,并增强网络舆情风险管理可控性、提高网络舆情风险管理效率。     

本钢汽车大梁板系列产品开发与应用研究

根据本钢1700mm热连轧机组生产热轧产品的组织和性能特点,通过制定合理的化学成分和轧制工艺在C-Mn基础上加入微合金元素Nb,连轧采用控轧控冷工艺轧制,开发出系列汽车大梁板,产品的力学性能和加工性能均满足相关标准和用户的使用要求,经济效益和社会效益显著.     

Using Research Based Assessment Tools in Professional Development in Current Electricity

We present a practical way of adapting and using four research-based assessments for different purposes in an electricity and magnetism course for K-8 science teachers. The course is designed to accomplish conceptual change toward accepted scientific conceptions as well as introducing teachers to materials and activities appropriate for their classrooms. Our data support that using the research-based tests to identify alternative conceptions and discuss test results with teachers is a promising way to use the knowledge of alternative conceptions in professional development. We also identify some mismatches between the research of conceptual change and its use in programs of professional development.

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基于信息化理念与技术的现代评价——E-assessment的研究和应用

在现代信息社会的背景下,信息化理念和技术已经成为教育评价与考试发展中不可或缺的因素。以信息化理念和技术为核心的E-assessment概念,是近年来在考试与评价领域发展起来的一种新的评价思想及其应用的集合,本文通过对国际知名教育评价机构——英国剑桥评价的研究,系统阐述了E-assessment的在教育评价与考试中的应用和意义,对我国教育评价与考试工作有着很好的启示和借鉴。     

农村中学生主观幸福感的量化、质化研究

主观幸福感是积极心理学主要研究内容之一.初步调查显示,有必要对农村中学生主观幸福感进行系统研究.采用自编调查表与牛津幸福感问卷测试农村中学生主观幸福感的状况及其影响因素.多种方法的结果显示,成绩与父母感情对农村中学生主观幸福感有重要作用.     

Learning Acetabular Fracture Classification using a Three-Dimensional Interactive Software: A Randomized Controlled Trial

Acetabular fractures are a real challenge for junior doctors as well as experienced orthopedic surgeons. Correct fracture classification is crucial for appreciating the fracture type, surgical planning, and predicting prognosis. Although three-dimensional (3D) tutorial is believed to improve the understanding of the complex anatomy structure, there have been few applications and randomized controlled trials to confirm it in orthopedics. This study aims to develop a 3D interactive software system for teaching acetabular fracture classification and evaluate its efficacy. Participants were randomly but evenly allocated into either the experimental group (who learned the acetabular fracture classification using a 3D software) or the control group (who used a traditional two-dimensional [2D] tutorial). Both groups were then tasked to classify 10 acetabular fractures and complete a five-point Likert scale on their satisfaction of each learning modality. To calculate significance (P < 0.05), independent t-test was used for normally distributed data whereas Mann-Whitney U test for non-normally distributed data. The experimental group significantly outperformed the control group (t (28) = 2.526, P = 0.017) with identifying correct acetabular fracture classification. Moreover, Likert scale score in the experimental group was also significantly higher than in the control group (Z = 2.477, P = 0.013). This 3D classification software has objectively and subjectively showed an advantage over the traditional 2D tutorial, resulting in an improved classification accuracy and higher Likert scale score. The 3D software has the potential to improve both clinical knowledge as well as identifying correct patient management in orthopedics.