How Google Uses Metadata to Improve Search Results

This article critically examines four Google search products (Google Advanced Search, Google News Advanced Search, Google Books Advanced Search, and Google Advanced Scholar Search) and shows how each uses metadata to enhance or improve search results. In addition, the article shows how metadata can increase search precision and recall in information discovery systems. From a library perspective, this article analyzes some of the metadata-enabled features of Google's advanced search pages and compares these features to those found in a typical online library catalog. From a serials perspective, Google News Advanced Search demonstrates how Google indexes news websites, sites that are essentially continuing resources. As Google incorporates more and more metadata functionality into its advanced search pages, they increasingly begin to function more like online library catalogs and less like search pages found in a traditional Internet search engine. The simple search box has many limitations, and like libraries, Google is increasingly creating and offering metadata-enabled search features that improve search precision and recall in its products.     

马克思主义灌输论在思想政治教育中应用再研究——基于社会转型和建设社会主义文化强国视角

马克思主义灌输理论为思想政治教育提供了理论基础和方法论的指导。坚持马克思主义灌输论,开展思想政治教育是马克思主义政党的本质要求。在社会加速转型期,巩固党执政思想基础,仍要牢固坚持马克思主义在意识形态领域的指导地位,把握社会主义先进文化的前进方向。进行思想文化领域的＂灌输＂、整合,形成全民族共同的理想信念和道德规范,形成全民族奋发向上的精神力量和团结和睦的精神纽带。     

Inequities and Ethical Dilemmas Beyond the Classroom: Joseph’s Story

ABSTRACT

This essay considers school and external factors that influenced a teacher’s decision to pass a high school student, thus allowing him to graduate high school. I explore my role in understanding and then enacting change within the classroom. This article prompts educators to self-reflect on their positionality, moral decision-making, and culturally relevant pedagogies to address inequities within their institutions. This self-study is example of research that informs teachers about the complexities of ethical and moral decision making in the classroom.     

大学男生有氧运动适宜心率指标的研究

采用文献法和实验法,探讨大学男生有氧运动适宜心率指标,结论是:大学男生有氧健康运动时适宜用(220-年龄数)×60～80％的中小负荷强度。     

管理元数据的原理与应用

讨论管理元数据的性质和作用,并结合W3C的P3P分析管理元数据的应用框架和开放设计方法。     

心肌梗塞患者康复早期适宜运动强度探讨

急性期后心肌梗塞病人(PMIP)进行适宜运动有利于机能的恢复及降低疾病复发率。通过对101名男性PMIP渐增负荷实验,测定和评价心脏康复早期的PMIP运动中的生理反应,为制定PMIP康复期运动处方提供适宜运动强度。结果表明:(1)PMIP应通过改变生活方式特别是改变饮食结构及参加体育运动来降低其BC的浓度;(2)康复初期的PMIP运动强度可被允许达到themodifiedBrucetreadmillprotocol的第三级或RPE13;(3)这一建议强度适用于大多数PMIP,有较广泛的使用价值。     

描述医学资源的元数据方案

介绍4种描述医学资源的元数据:OhioLINK的医学元数据、NLM Metadata Schema、Medi-cal Core Metadata(MCM)、CISMeF(Catalog and Index of French-language health resources)无数据,得出一般是通过元数据的复用来形成描述医学资源的元数据集的结论。     

Z39.50信息检索标准与元数据

当代信息资源的主要特点是数字化、网络化、异质异构、难以规范。如何利用网络、组织、管理、共享信息资源并提供检索和查询,成为电子政务等信息系统建设关注的焦点。针对信息共享和信息检索,需要元数据对信息作进一步的描述和用Z39.50标准建立新一代的检索机制。本文对元数据(metadata)和Z39.50信息检索标准进行了分析,并介绍了一种元数据信息之间关系的层次框架。