Chaos theory, informational needs, and natural disasters   总被引：2，自引：0，他引：2  

Timothy L. Sellnow  Matthew W. Seeger  Robert R. Ulmer 《Journal of Applied Communication Research》2002,30(4):269-292

This study applies chaos theory to a system-wide analysis of crisis communication in a natural disaster. Specifically, we analyze crisis communication during the 1997 Red River Valley flood in Minnesota and North Dakota. This flood, among the worst in modern American history, consumed entire metropolitan areas, displacing thousands of people. The conditions and decisions leading to the disaster, and the subsequent reactions are retraced. Communication related to river crest predictions (fractals), the shock at the magnitude of the crisis (cosmology episode), novel forms of reorganizing (self-organization), and agencies that aided in establishing a renewed order (strange attractors) are evaluated. Ultimately, we argue that preexisting sensemaking structures favoring rationalized, traditional views of a complex system led officials to make inappropriately unequivocal predictions and ultimately diminished the effectiveness of the region's crisis communication and planning.  相似文献   

论网络环境下情报检索语言的发展趋势   总被引：2，自引：0，他引：2  

易红  徐军华 《高校图书馆工作》2006,26(3):29-31

本文论述了网络环境下采用自然语言是必然趋势,然而自然语言并不会成为网络环境下的唯一检索语言,自然语言和人工语言相结合才是发展的方向.参考文献8.  相似文献   

中文自然语言理解技术与智能检索     

吴江 《图书馆学研究》2006,(3):85-87,84

本文论述什么是中文自然语言理解技术，详细说明如何理解，智能搜索引擎如何应用中文自然语言理解技术进行检索。  相似文献   

Museums at the crossroad: Contributing to dialogue, curiosity and wonder in natural history museums     

Antonio G. Valdecasas  Virginia Correia  Ana M. Correas 《Museum Management and Curatorship》2006,21(1):32-43

The first natural history collections opened to the public were inspired by a sense of curiosity and wonder about the products of nature. They were ‘cabinets of curiosities’ that offered a first-hand interaction between owner and visitors. Nowadays, these two facets of the museum experience—dialogue and wonder—have been lost, in part, due to the information overload coming via the media and the impersonal nature of the museum visit. This paper offers some reflections on the evolution of the museum visit, suggests some ways to rediscover this ‘sense of wonder’ and provides ideas on how to promote two-way communication with museum visitors. Two examples of exhibitions are offered as illustrations of the points discussed.  相似文献   

共词分析聚合研究领域的表面效度研究:基于自然语言处理     

周文杰  张彤彤  高冲 《高校图书馆工作》2018,(2):12-16

为考察共词分析在研究领域聚合中的有效性,本研究以1988年～2017年三十年间发表且收录于WoS(Web of Science)数据库的计算机科学、地理学、数学、应用化学和应用物理学等五个学科的标题、摘要和关键词为分析对象,对不同分析单元下所聚合的研究领域的表面效度进行了检验。研究发现,关键词在研究领域聚合中具有相对最高的表面效度,摘要和题名的效度则相对较低。然而,本研究也发现,科学计量领域现有聚类指标和工具所聚合的研究领域缺乏区分能力且各种指标均存在着一定的效度风险。本研究的发现对于丰富科学计量领域关于研究领域聚合有效性的认识具有重要理论意义。  相似文献   

再论《吴医汇讲》为中国期刊的肇端     

姚远  牛亚华  陈浩元 《编辑学报》2016,28(4):309-315

基于无限期出版的意图和具有定期或不定期连续出版的特征是期刊最根本的2个属性,提出了《吴医汇讲》第1卷单卷刊行传播和9册本、6册本、5册本、4册本分卷、分册刊行的文字证据和版本实物证据,彻底颠覆了认为其在”3个年份里2次刻成,故非连续出版物”的错误观点,再次巩固了其为中华第一刊的正确结论.  相似文献   

银雀山汉简《守法》《守令》简文归属辨析     

范猛 《滨州学院学报》2016,(1):10-13

在介绍和总结前辈学者在《守法》《守令》分篇研究方面取得成绩的基础上,指出学界在简768—775、简802—806的归属问题上存在严重分歧。并对这两组简文的归属进行重新辨析,认为简768—769、简802、简806属于《守法》《守令》,简770—775属于《库法》,简803—805尚无法确定归属。  相似文献   

天山北坡经济带产业协调发展问题研究   总被引：2，自引：0，他引：2  

魏本德  杨菊娥 《新疆师范大学学报(哲学社会科学版)》2006,27(1):43-48

文章运用实证分析的方法,对天山北坡经济带三大产业不协调的主要表现及其原因进行了较为详细的分析,并提出了天山北坡经济带三大产业协调发展的思路。  相似文献   

Performance differences when using 26- and 29-inch-wheel bikes in Swiss National Team cross-country mountain bikers     

Thomas Steiner  Beat Müller  Thomas Maier  Jon Peter Wehrlin 《Journal of sports sciences》2016,34(15):1438-1444

The purpose of this study was to analyse the effect of bike type – the 26-inch-wheel bike (26“ bike) and the 29-inch-wheel bike (29“ bike) – on performance in elite mountain bikers. Ten Swiss National Team athletes (seven males, three females) completed six trials with individual start on a simulated cross-country course with 35 min of active recovery between trials (three trials on a 26“ bike and three trials on a 29“ bike, alternate order, randomised start-bike). The course consisted of two separate sections expected to favour either the 29“ bike (section A) or the 26“ bike (section B). For each trial performance, power output, cadence and heart rate were recorded and athletes’ experiences were documented. Mean overall performance (time: 304 ± 27 s vs. 311 ± 29 s; P < 0.01) and performance in sections A (P < 0.001) and B (P < 0.05) were better when using the 29“ bike. No significant differences were observed for power output, cadence or heart rate. Athletes rated the 29“ bike as better for performance in general, passing obstacles and traction. The 29“ bike supports superior performance for elite mountain bikers, even on sections supposed to favour the 26“ bike.  相似文献   

福建省青少年体育现状初探     

徐建清  何云玉  牛将  林东星  牛挥 《福建体育科技》2016,(5):43-47

为促进福建省青少年体育工作,运用文献资料法、实地调查法采集了福建省体育局青少处近几年工作总结文献资料,利用参与福建省后备人才基地评估机会开展实地调查,对全国青少年基础数据年度统计福建部分数据进行分析,研究发现福建省青少年体育近年来取得实质性进展,青少年体育公共服务体系初具雏形,后备人才在训规模基本稳定,并形成福建特色.研究提出了注重职能转变、有效动员社会力量以及推动体校转型发展等建议.  相似文献