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121.
Young adults are disproportionately affected by negative sexual health outcomes, such as sexually transmitted infections. One strategy for reducing such negative outcomes involves the use of comprehensive sexual health education. As comprehensive sexual health education programmes are adopted, there is a need to evaluate the messaging approaches that might best connect with young people. Sex-positive approaches, which describe sex as a healthy practice and personal choice, are becoming popular, but whether this strategy works has not been tested from a message design perspective. This study examines the reactions of young adults to sex-positive or sex-negative messages, framed as a gain or loss, designed for a text message-based intervention. Participants quantitatively evaluated 24 messages on their mobile phones. Gain frames were preferred over loss frames, and sex-positive messages were rated as more believable and persuasive. An interaction between the two concepts was also found. Results highlight how sex-positive messages that focus on the benefits of certain behaviours tend to resonate better with young adults. Implications for health educators and practitioners are discussed.  相似文献   
122.
Focusing on digital text messages containing information about students’ absences and sent to parents by schools, the paper investigates the way school absenteeism is produced within affective assemblages. The paper unfolds a theoretical and methodological approach of ‘going with’ the text messages, in entanglements of affective flows. The empirical engagements, produced together with multiple agents in two Swedish schools, show that within the assemblages of human and nonhuman bodies, the text messages can become ‘stirrers’ that evoke nervousness and anxiety, but also excitement and feelings of control that affect the production and conception of absenteeism. The affective flows of text messages thus travel in all directions, with and against notions of linearity. The conclusion emphasizes how the text messages, as affective materialities, are an inextricable part of the production of school absenteeism in multiple and sometimes unexpected ways.  相似文献   
123.
一个精巧的网上全文数据库--SpringerLink   总被引:2,自引:0,他引:2  
介绍了全文期刊数据库SpfingerLink系统的特点、用法及新增功能。  相似文献   
124.
学位论文数据库CDDBFT和CDMD的描述元数据比较   总被引:1,自引:0,他引:1  
房文革 《现代情报》2007,27(5):85-85,88
《中国学位论文全文数据库》(简称CDDBFT)和《中国优秀博硕士学位论文全文数据库》(简称CDMD)是目前国内比较大型的商业性中文学位论文全文数据库。本文对这两个数据库的描述元数据进行了比较、分析,并建议在学位论文数据库建设中,推广使用《我国数字图书馆标准规范建设:学位论文描述元数据规范)。  相似文献   
125.
刘鑫  余翔 《科研管理》2016,37(11):150-158
本文在梳理概括了国内外专利文本挖掘技术研究进展基础上,探索建立一种基于对专利文本中特定动宾(AO)结构进行挖掘分析的专利功能分析方法,并通过专利功能的定义、提取和分析将专利技术与相关产业进行对接,实现了从专利文本中识别产业化的潜在领域。更为重要的是,本文提出了描述专利技术功能效用的S曲线和S指数,完善和改进了专利技术产业化适用性量化评价模型,并定义了该模型中的S指数、专利功能的绝对重要性指数(AI)和专利功能的相对重要性指数(RI)三个评价指标。最后,以具备"reduce PM2.5"功能的专利为例,验证了基于功能分析的专利技术产业化适用性评价模型的可行性,为中国专利技术产业化路径选择提供了新思路。  相似文献   
126.
A new dictionary-based text categorization approach is proposed to classify the chemical web pages efficiently. Using a chemistry dictionary, the approach can extract chemistry-related information more exactly from web pages. After automatic segmentation on the documents to find dictionary terms for document expansion, the approach adopts latent semantic indexing (LSI) to produce the final document vectors, and the relevant categories are finally assigned to the test document by using the k-NN text categorization algorithm. The effects of the characteristics of chemistry dictionary and test collection on the categorization efficiency are discussed in this paper, and a new voting method is also introduced to improve the categorization performance further based on the collection characteristics. The experimental results show that the proposed approach has the superior performance to the traditional categorization method and is applicable to the classification of chemical web pages.  相似文献   
127.
基于本体的文本信息检索研究   总被引:5,自引:0,他引:5  
本文对如何构建基于本体的文本信息检索系统进行了探讨.并认为,利用反映概念之间关系的领域本体指导主题标引,利用反映实体之间关系的领域本体指导实体关系标引,并以本体的形式表示文档替代物和查询表达式,可以进一步提高文本信息检索系统的性能。  相似文献   
128.
自由文本信息抽取技术   总被引:13,自引:0,他引:13  
李向阳  苗壮 《情报科学》2004,22(7):815-821,829
信息抽取是从自由文本语料库构建数据库,实现情报自动收集的有效途径之一。近十多年来,信息抽取技术逐步走向成熟,已成为与信息检索相平行的技术之一。对信息抽取技术进行系统的归类、总结,已显得较为迫切。在对当前多种主要的信息抽取技术进行分析、比较的基础上,结合信息抽取所面临的挑战,分析了信息抽取的三个趋势。  相似文献   
129.
The purpose of the present study was to evaluate whether there is evidence of reflection in student-written journals and to investigate whether students show improvements in their reflective skills through journal keeping. To that end, the reflection journals of 3460 first-year students enrolled in a polytechnic were studied by means of an automated coding procedure. Data used in the analyses were students' journals for an entire week, collected once at the beginning and again at the end of an academic year. Outcomes of the content analyses suggest that there is evidence of reflection in students' journals and that students reflected on three general categories related to their learning: critical review of past learning experiences, cognitive learning strategies and summaries of what was learnt. Furthermore, the findings also indicate that students show improvements in their reflective skills as they progressed through the academic year. The findings when taken together suggest that reflection journals can be used to promote self-reflection and learning amongst students.  相似文献   
130.
英语写作一直是英语学习者较为薄弱的语言技能,如何教好、学好英语写作是广大英语教师及学习者的一项难题。以语篇知识为基础,在阅读中学习写作的大学英语写作教学模式有望为解决这一难题打开思路。文章以一线教师的教学经验为基础,梳理相关的理论,提出了"以读促写"教学模式的基本步骤,以期为后续相关研究打下基础?拓展视野。  相似文献   
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