高校图书馆采购决策建模及信息支持系统   总被引：1，自引：0，他引：1  

傅英姿  李霞 《图书情报工作》2007,51(9):84-86,99

针对高校图书馆书刊购置经费利用问题进行研究,提出一种同时考虑图书本身价值和多层次读者需求的图书采购决策模式,给出定性分析与定量计算相结合的图书价值评价、按学科分配购书经费以及各学科内采购决策的数学模型。在此基础上,设计出一种基于图书馆自动化系统的采访决策支持系统,以提高采访质量。  相似文献   

Risk terrain modeling predicts child maltreatment     

《Child abuse & neglect》2016

As indicated by research on the long-term effects of adverse childhood experiences (ACEs), maltreatment has far-reaching consequences for affected children. Effective prevention measures have been elusive, partly due to difficulty in identifying vulnerable children before they are harmed. This study employs Risk Terrain Modeling (RTM), an analysis of the cumulative effect of environmental factors thought to be conducive for child maltreatment, to create a highly accurate prediction model for future substantiated child maltreatment cases in the City of Fort Worth, Texas. The model is superior to commonly used hotspot predictions and more beneficial in aiding prevention efforts in a number of ways: 1) it identifies the highest risk areas for future instances of child maltreatment with improved precision and accuracy; 2) it aids the prioritization of risk-mitigating efforts by informing about the relative importance of the most significant contributing risk factors; 3) since predictions are modeled as a function of easily obtainable data, practitioners do not have to undergo the difficult process of obtaining official child maltreatment data to apply it; 4) the inclusion of a multitude of environmental risk factors creates a more robust model with higher predictive validity; and, 5) the model does not rely on a retrospective examination of past instances of child maltreatment, but adapts predictions to changing environmental conditions. The present study introduces and examines the predictive power of this new tool to aid prevention efforts seeking to improve the safety, health, and wellbeing of vulnerable children.  相似文献   

'It was Better than Sitting in a Group and Talking'. An Evaluation of a Film-Making Project with Young People in Trouble or 'At Risk' in School     

Gillean McCluskey  Researcher    Gwynedd Lloyd  Head of Educational Studies    Joan Stead  Senior Research Fellow 《Pastoral Care in Education》2004,22(4):34-39

This paper will explore some issues raised by an evaluation of a Scottish video making project which works with young people in trouble or 'at risk' in school. In the paper we reflect on the problems of evaluating work with troubled and troublesome pupils and on the difficulties of both collecting and presenting appropriate evidence. It offers a contribution to continuing debates over educational exclusion and inclusion and to the research literature on strategies for supporting young people in school. The paper also raises key questions about the planning and evaluating of support services for young people by schools.  相似文献   

《协和医学杂志》新媒体开展知识类视频内容传播的实践与思考     

刘洋  李娜  赵娜  李玉乐  董哲  孙静 《中国科技期刊研究》2022,33(6):719-80

【目的】 视频化时代下,通过《协和医学杂志》开展知识类视频内容传播的具体实践,总结医学期刊知识类视频内容传播的有效运营方法及现存问题,为期刊同仁提供思路及借鉴。【方法】 介绍《协和医学杂志》新媒体开展知识类视频内容传播的优势及效果,并从视频选题、内容制定、类型把控、视觉表现和传播渠道5个方面分享运营策略及典型案例。【结果】 《协和医学杂志》新媒体在知识类视频内容传播发展中通过锚定黄金栏目开展高起点系列选题策划,基于不同用户需求差异化制定视频内容,打破藩篱实施短中长视频全线发展,并创新探索MG动画与AI语音融合的视听表现,结合多平台分发、多渠道引流等综合运营措施,增强期刊内容传播力和品牌影响力,成效显著。【结论】 医学期刊应抓住视频发展机遇,以多维度综合运营开创知识类视频新干线,为医学期刊视频内容传播拓新局。同时在实践中应注意发布规律、编辑素养、资金投入及长效发展布局等问题,从而坚实期刊市场竞争力,提升中国学术期刊知识内容传播影响力。  相似文献   

科技期刊视频号短视频运营实践——以《遥感学报》为例     

尤笛  边钊  李薇  闫珺 《中国科技期刊研究》2022,33(6):729-190

【目的】 以《遥感学报》视频号短视频运营为具体案例,通过分享视频制作各环节的实践经验,提出短视频运营现存的问题和对策,以期为其他科技期刊的新媒体运营提供借鉴。【方法】 采用案例分析、文献调研和用户调研的方法,以《遥感学报》视频号发布的短视频为研究对象,从短视频的整体规划、主题内容、素材收集、剪辑制作、宣传推广、效果追踪等环节分享实践经验。【结果】 科技期刊利用短视频这种新的媒体形式,可有效提高期刊的影响力,但是在内容、人员和传播力度方面还存在不足,有待进一步优化调整。【结论】 短视频运营上,科技期刊可深度挖掘优质资源来丰富短视频的内容,多渠道打造专业团队以缓解人员不足的压力,通过媒体矩阵联动、频繁发布高质量作品、举办各种学术活动等方式,促进短视频平台和科技期刊内容的有效融合和传播。  相似文献   

Premiere视频编辑技术课程改革的几点思考     

薛元昕  尤晶晶  高小林 《烟台职业学院学报》2007,13(4):12-14

结合近几年对Premiere视频编辑技术教学改革实践,分析了专业课程教学和岗位综合技能的关系,提出将课程教学拓展为岗位教学,以项目为载体,加强学生岗位技能训练,缩短课堂教学与岗位需求之间的距离。  相似文献   

虚拟现实中建筑建模的研究与实现     

柯健  任平  李金祥 《苏州市职业大学学报》2007,18(3):51-53

建筑是虚拟三维数字校园模型中的基本对象,已有的对建筑的表示局限于某一层次级别,连续层次级别这一概念对地理信息系统中的建筑进行表示和建模,而连续层次级别方法统一了虚拟三维数字校园模型中不同类型的建筑的表示。  相似文献   

数学教学中融入数学文化与数学建模思想之探索     

王汝发 《教育文化论坛》2011,3(4):90-93

在大学数学教学中积极融入数学文化,利用数学建模课、大学生创新计划和数学文化专题讲座来传承数学文化;特剐是针对文理科的不同特点,分别对文理科学生开设数学文化课,这些方法措施形成了数学文化传承与数学建模的立体化网络,它们相辅相成,互为补充,最大程度的使尽可能多的学生接受数学文化的熏陶。在调研省内外20多所院校的基础上,打破几十年《大学数学》课程一贯制的传统模式,构建融“高等数学、数学文化、数学建模”为一炉的综合《大学数学》,对于提高大学生的学习能力、实践能力和创新能力,全面推进大学生文化素质教育具有重要的意义。  相似文献   

The influence of live- vs. video-model presentation on the early acquisition of a new complex coordination     

Léna Lhuisset  Eric Margnes 《Physical Education & Sport Pedagogy》2015,20(5):490-502

Background: Demonstration is a widely used method in sports teaching and coaching, based on the assumption that it is more beneficial than verbal instructions or trial-and-error methods for skill acquisition. Although in teaching/coaching situations, the demonstration is usually carried out in front of the learners, in a research context, it is most often presented via a video. However, a direct comparison between these two types of model has rarely been undertaken in a motor context.

Purpose: In this study, we aimed to compare the effectiveness of the observation of a live and a videomodel for the early acquisition of a complex judo movement.

Research Design: Participants observed either a live or a videomodel executing the task. After observation, they practised for three minutes taking five trials and then performed it for analysis. This procedure was repeated three times. The form and technique of each participant's execution were evaluated using a technical score.

Main results: The results indicated a significant improvement in the task execution by the end of the practice session. However, this improvement occurred only for the video-model group between the second and third blocks of practice.

Conclusions: The video demonstration seems more effective than the live one for the early acquisition of a completely new complex coordination. This may be due to the simplification of the visual information in the former condition because of its two-dimensionality. This simplification may allow the observer to identify the more key elements that would guide him/her for the subsequent performance of the task.  相似文献   

MPCK视角下的结构方程应用初探     

崔路  刘芳芳 《科教文汇》2015,(12)

数学学科教学知识（MPCK）已经成为研究的热点,在理论分析较多的情况下,也应该关注量化分析的方法。本文介绍了结构方程模型的优点和结构方程模型软件AMOS的基本操作,讨论了在MPCK研究中,AMOS软件可能的用途。使用AMOS分析教师的MPCK,可以促进MPCK组成成分的研究,提高教师MPCK发展手段的针对性。  相似文献