基于GML和空间数据仓库技术的GIG数据共享模式研究     

陈玮  冷丽  刘娟 《科技广场》2007,(7):84-86

传统的GIS系统缺乏统一的数据格式标准,不同应用系统之间由于文件存储格式不同而无法实现直接数据共享。空间数据仓库技术可以实现GIS数据存储的统一标准化和应用的深层化,而GML的空间数据转换技术可实现Web环境下GIS数据的高速传输和共享。在对现有GIS数据共享方案及其中的各种数据共享模式进行分析的基础上,指出其中的不足之处,然后提出了面向管理的GIS数据共享模式,并就其实施模式和特点进行了研究。  相似文献   

城乡全科医生信息源与互联网信息障碍比较     

谢娟  张媛  成颖  柯青 《图书馆论坛》2020,(2):90-98

文章旨在探讨城乡全科医生信息源以及互联网信息障碍的差异,以推进有针对性地为城乡全科医生提供优质的医疗信息服务,提高其医疗水平和服务能力。文章采用问卷调查法,通过便利采样在城市和农村的基层医疗机构回收有效问卷150份,并对采集到的数据进行统计分析。结果显示,城市和农村全科医生信息源的多样性及偏好并无显著差异,其对大部分信息源的感知有用性也趋同;但他们对同行信息源和非正式文件的感知有用性存在显著差异。互联网的使用频率、自我感知使用能力、接受互联网培训以及通过医疗网站为病人诊断等情况在城乡全科医生之间也无显著差异。在互联网信息障碍方面,城市和农村的全科医生都遇到了网络连接太慢以及软件问题;此外,农村全科医生还面临着语言障碍、缺乏熟悉度或经验以及信息过载等障碍。据此,文章提出,要重点提高农村全科医生的信息素养;大力发展全科医生的医学教育;进行城乡全科医生互联网技能培训,但由于城乡中基础设施和全科医生教育背景的差异,培训的内容和形式也要因地制宜、因人而异;加强互联网医疗信息资源建设;合理进行农村基层医疗机构的软硬件配置。  相似文献   

引文国际化对论文被引的影响研究     

龚凯乐  谢娟  成颖  柯青 《图书情报知识》2020,(2):102-112

[目的/意义]在学术交流日趋国际化的背景下,本文拟探索引文国际化与被引量之间的关系,力图回答良好的国际视野是否有助于提升论文的学术影响力这一学界普遍关注的问题。[研究设计/方法]以社会科学为研究对象,选取管理学、图书情报学和新闻传播学的181,406篇CSSCI论文为研究样本,采用相关分析、非参数检验与回归分析的方法研究引用外文期刊论文的数量、学术质量、学科领域、时效性对论文被引量的影响。[结论/发现]在控制了文献类型、期刊声誉等若干可能影响论文被引量的因素后,发现样本论文的引文国际化水平对其被引量具有显著的正向影响。具体而言,引用外文期刊论文的数量越多、平均学术质量越高、学科专属度越高、平均时效性越强的论文具有更高的被引量。[创新/价值]证实了国际视野有助于提升中文社科论文的学术影响力,并提出了有针对性的建议。  相似文献   

由"画龙点睛"谈起——谈食用类广告语中的"点睛语"     

李娟 《平原大学学报》2007,24(3):84-86

点睛语取画龙点睛之"点睛"意,是说一个广告中总有一句广告语,被解说员或其形象代言人反复使用或强调.其作用是使这一句话为观众熟悉,以至能深刻印在脑海中,能因而联想到产品,达到宣传的作用.点睛语是广告语言中的灵魂,广告者应该加以重视.  相似文献   

我国社会主义教育方向性研究     

徐娟 《长江工程职业技术学院学报》2007,24(1):4-5

论述了目前我国的教育现状和存在问题,分析了社会主义教育发展的方向,并阐明了相关意义.  相似文献   

论《弃儿汤姆·琼斯的历史》中的人性观     

杜娟 《长江工程职业技术学院学报》2007,24(1):45-47

菲尔丁的代表作《弃儿汤姆·琼斯的历史》蕴涵了丰富的道德内容.本文认为作品的主旨和隐性结构就在于表现人性,基于此,菲尔丁不仅塑造了一个真实丰富的主人公形象,并对当时某些似是而非的道德问题和道德原则提出了讨论,表明了小说的道德主题.  相似文献   

Locus and nature of perceptual phonological deficit in Spanish children with reading disabilities     

Ortiz R  Jiménez JE  García Miranda E  Guzmán Rosquete R  Hernández-Valle I  Rodrigo M  Estévez A  Díaz A  Hernández Expósito S 《Journal of learning disabilities》2007,40(1):80-92

The aims of this study were (a) to determine whether Spanish children with reading disabilities (RD) show a speech perception deficit and (b) to explore the locus and nature of this perceptive deficit. A group of 29 children with RD, 41 chronological age-matched controls, and 27 reading ability-matched younger controls were tested on tasks of speech perception. The effect of linguistic unit (word vs. syllable) and type of phonetic contrast (voicing, place and manner of articulation) were analyzed in terms of the number of errors and the response time. The results revealed a speech perception deficit in Spanish children with RD that was independent of the type of phonetic contrast and of linguistic unit.  相似文献   

Cumulative stress and substantiated maltreatment: the importance of caregiver vulnerability and adult partner violence   总被引：1，自引：0，他引：1  

Wekerle C  Wall AM  Leung E  Trocmé N 《Child abuse & neglect》2007,31(4):427-443

OBJECTIVE: Our goal is to assess the effect of caregiver vulnerabilities, singly and in combination, on the substantiation of child abuse (physical, sexual) and neglect, while controlling for relevant background variables. We test the moderator role of adult partner violence in qualifying the relationship between caregiver vulnerabilities and maltreatment substantiation. METHOD: Secondary analyses of the 1998 Canadian Incidence Study of Reported Child Maltreatment (CIS) are used to predict child protective service investigation substantiation versus non-substantiation from a range of caregiver vulnerability factors. Involvement in partner violence was examined as a moderator in the relation between caregiver vulnerabilities and maltreatment substantiation. The CIS is an epidemiological survey of first-reported cases to child protective services, using a random sample of child welfare agencies across Canada. Child welfare workers completed a research form on the child, primary caregiver, family, perpetrator, severity and type of maltreatment, as well as services and court outcomes. All maltreatment classifications were assigned according to the Canadian legal definition of child abuse and neglect. Hierarchical logistic regression analyses were used, with stepped entry of: (1) demographic factors, socioeconomic disadvantage, and caregiver's own history of maltreatment; (2) caregiver vulnerability factors; (3) involvement in partner violence; (4) the interaction between caregiver vulnerability and partner violence. RESULTS: Caregiver substance abuse was found to be the single most potent kind of caregiver vulnerability in predicting maltreatment substantiation. When the total number of vulnerabilities was used as the predictor, prediction across all types of maltreatment increased, especially for substantiated neglect. Analyses also showed that the presence of partner violence in the home exacerbated the effect of caregiver vulnerability on substantiation. CONCLUSIONS: The total number of caregiver vulnerabilities was the best predictor of the substantiation of child abuse and neglect. This relationship was moderated by the existence of partner violence: high caregiver vulnerability and high partner violence increased the likelihood of substantiation versus non-substantiation. These results suggest that caregiver issues should be considered in tandem with partner relationships. Among child welfare cases, caregiver vulnerability and partner violence are critical targets for child maltreatment prevention and early child protective services intervention.  相似文献   

测谎实验的原理及应用     

杜娟  陈小萍 《黑龙江教育学院学报》2007,26(4):50-53

测谎实验使用"多道生理描记器"记录多项生理反应,了解涉案嫌疑人心理状况,以确定其与案件关联的程度,可用来协助侦讯。测谎实验的原理是,设计与测谎的主题有关的问题,被测者在回答这些问题时,会刺激心理活动,从而触发生理反应,测谎人员通过识别这些生理指标,结合其他相关学科知识,分析被测者的心理状况,判断其是否说谎。由于多道测谎仪测谎存在一定的局限性,对多道测谎测试结果应持一种理性的态度,即把其测试结果作为被测者与案件相关程度的参考之一,同时发展多项测谎技术的联合,进而探索这项技术在中国本土的应用。  相似文献   

Evaluation and publication delay in Ibero-American scientific journals     

Jon Zabala  Borja González-Albo  Ana García-García  Aurora Garrido-Domínguez  José Ignacio Vidal-Liy  Luis R. Álvarez-Díez  Soledad Hernando-Tundidor  Yara Mostazo-Fernández  Teresa Abejón 《Learned Publishing》2023,36(2):205-216

This article analyses the review, acceptance and publication dates of a sample of 21,890 articles from 326 Ibero-American scientific journals from all subject areas and countries included in the Latindex Catalogue 2.0 and published between 2018 and 2020 (freely available as an open access dataset). The aim is to discover evaluation and publication times. The evaluation process takes a median of 110 days, the publication process, a median of 82 days, and the whole process, a median of 224 days. Statistical differences are found according to periodicity, subject areas, countries, existence of a printed version and article type (Call for Papers or General articles). From the data we find that the delay in publication is longer than publishers themselves report to the DOAJ. STEM areas present the most similarity in publication patterns, having a higher number of evaluation days (Ed) than publication days (Pd); Arts and Humanities present the opposite pattern, with a higher Pd than Ed. In the case of Social Sciences, the times are similar. General articles and Call for Papers articles differ in terms of Ed, but not Pd, indicating that Call for Papers revisions are faster.  相似文献