Das Internet-basierte Bibliotheksinformationssystem in der Bibliothek der Universit?t Bielefeld

Zusammenfassung . Die Bibliothek der Universit?t Bielefeld hat im Zuge der technischen Entwicklung ihr bisher NOVELL-basiertes Informationsnetz auf eine Internet-Basis umgestellt. Die Benutzer innerhalb und au?erhalb der Bibliothek arbeiten mit ihrem Web-Browser an ihrem Arbeitsplatz und nutzen das elektronische Dienstleistungsangebot. Dazu geh?ren der Nachweis von globalen und lokalen Internetquellen, selbsterstellte Datenbanken (Katalog, Zeitschriftentitel- und Artikelnachweis), lokal installierte Fremdanwendungen (Silverplatter-Datenbanken) und digitale Dokumente (elektronische Zeitschriften, digitalisierte Buchbest?nde, Hochschulschriften). MS-DOS- und Windows-Anwendungen (überwiegend CD-ROM-Datenbanken) sind über Windows-NT-Software (WinCenter) eingebunden. Im Laufe der Entwicklung hat sich die Integration der Einzelbestandteile als wichtigster Schwerpunkt herauskristallisiert. Dabei werden nahtlose überg?nge zwischen unterschiedlichen Anwendungen (Anbindung externer Datenbanken an die Dokumentlieferung) und Verknüpfungen zwischen dem Nachweis von Literatur und dem elektronischen Abruf des Dokuments (insbesondere bei Zeitschriftenartikeln) realisiert. über einen praxisorientierten Ansatz wird versucht, den Weg zur digitalen Bibliothek voranzutreiben. Eingegangen am 19. Januar 1998 / Angenommen am 3. August 1998     

Why Isn’t Health a Priority?

This study helps bridge the existing divide between the knowledge on health news reporting in mainstream mass media and health reporting in media outlets serving Native American populations in the United States. The current work presents the first survey of journalists working in Native-serving media outlets to identify role conceptions, perceived importance, and actual practices of health reporting. Aided in data collection by the Native American Journalists Association, findings indicate journalists (N?=?100) place a high value on their role as disseminators of culturally relevant health information. However, results conflict in regard to the prioritization of health news reporting. Although journalists recognize health news should be a top priority, they point to a general lack of will from news leadership to make it an organizational priority. Additionally, results show that although journalists have comfort and confidence in health-related reporting, access to qualified sources remains an area for opportunity.     

Generierte DB-Aufrufschnittstellen – Anwendungsspezifische Zugriffsoptimierung durch Bindungsflexibilit?t

Jede Datenbankprogrammierschnittstelle mu? sich daran messen lassen, inwieweit sie die Vorteile der durch sie integrierten Sprachen (Datenbank- und Programmiersprache) erh?lt. Neben dieser allgemeinen Zielsetzung müssen heutzutage neuere Konzepte in den Bereichen Programmiersprachen und Datenbanksysteme sowie die Anforderungen komplexer Anwendungsbereiche (z. B. CAD oder Software-Entwicklung) beachtet werden. Unser Ansatz der generierten Aufrufschnittstellen soll dazu beitragen, Datenmodelle objekt- relationaler Datenbanksysteme und Typsysteme objektorientierter Programmiersprachen n?her zusammenzurücken. Er erlaubt neben der Schnittstellengenerierung ihre anwendungsspezifische Konfigurierung, um die DB-Verarbeitung spezieller Anwendungen gezielt optimieren zu k?nnen. Wir werden neben Aspekten der Generierung/Konfigurierung die Nutzung von generierten Aufrufschnittstellen beschreiben und Experimente vorstellen, die den durch diesen Ansatz erzielbaren Leistungsgewinn verdeutlichen. Letzterer kann durch gezielten, auf die jeweilige Anwendung zugeschnittenen Einsatz von frühen Bindungen für Datenmanipulationsoperationen sowie von Pointer-Swizzling-/Prefetching-Mechanismen erreicht werden.     

Algorithmen für Parallelit?t bei Backup und Restore in Datenbanksystemen

Zusammenfassung.   Die st?ndig wachsende Menge der in Datenbanksystemen verwalteten Daten und steigende Verfügbarkeitsanforderungen verlangen die Entwicklung immer schnellerer und effizienterer Backup- und Re-covery-Verfahren. Die Ausnutzung von Parallelit?t beim Backup und Restore ist dabei einer von verschiedenen “intelligenten” L?sungsans?tzen, die nicht allein auf schnellere Hardware setzen, sondern helfen, eine bestehende Infrastruktur optimal auszunutzen. Der Beitrag stellt ein Puffer-Proze?-Modell vor, mit dessen Hilfe parallele Backup- und Restore-Algorithmen systematisch abgeleitet werden k?nnen. Eine definierte Auswahl von Algorithmen wird anhand praxisbezogener Kriterien bewertet und klassifiziert (inklusive Einordnung der wichtigsten DBMS-Produkte). Me?ergebnisse prototypisch implementierter Algorithmen schlie?lich belegen die Anwendbarkeit des Puffer-Proze?-Modells zur Implementierung effizienter paralleler Backup- und Restore-Algorithmen. Eingegangen am 31. Januar 2002 / Angenommen am 5. Juli 2002     

统计学t检验的编辑审查

统计学ｔ检验的编辑审查向晋涛，钱文霖在科学研究中，常会遇到关于总体的某个命题是否成立的问题。若能掌握总体中的每一个体，自然可直接得出结论（完全归纳法）；但这是很难做到的。由于总体通常很庞大、很复杂，人们只能研究一小部分代表性的样本（抽样研究），由样本...     

d. An application of t

滦徒哟ナ絀C卡系统,能够脱离读卡机显示IC卡上的存储信息,克服了以往IC卡的局限,为IC卡提供了全新的应用领域,前景广阔。智能卡芯片:6520,系统设计:5007,读卡机:3032,应用领域:2965,接触式:2503,控制字:2143,读操作:1331,写操作:895,操作时序:785,前景广阔:611智能卡芯片:6477,     

“I own it,don’t I?” The Rules of Academic Copyright Ownership and You

Abstract

This article delves into a few areas of copyright law that academic authors often overlook: joint author’s rights and the work made for hire doctrine. Scholarly publications produced by university professors often include more than one author. The default copyright laws apply to any such works if there is no specific written agreement to the contrary. Thus, it is important to understand what those default rules are in order to determine whether it is appropriate to deviate from them in an author agreement. Similarly, the work made for hire doctrine would normally apply to make all work produced by professors owned by the university. Luckily, many universities do not wish to own such work and give it back to professors through university statutes and other governing documents. However, it is crucial to understand whether the default rules apply or the university permits professors to negotiate their own author agreements with publishers. Finally, if authors own their own scholarly works, publishers can expect that they will negotiate their rights in the publishing agreements to benefit the terms most favorable to the author. And yet, many faculty members simply sign a standard authorship agreement without asking for concessions on the part of the publisher. Thus, this article empowers professors to exercise their copyright rights to the full extent of the law and to negotiate their author’s agreements to benefit themselves and society as a whole through open access and the use of Creative Commons licenses.     

Why Can’t Students Get the Sources They Need? Results from a Real Electronic Resources Availability Study

Availability studies are used to estimate the proportion of items in a library collection that are available to users, and the proportion of items in a library collection that are unavailable to users as a result of system and/or human errors. Sanjeet Mann of the Armacost Library at the University of Redlands used a series of availability studies to more accurately understand and troubleshoot the e-resources access errors that keep undergraduate students at the university from obtaining the full text of electronic resources. In this presentation, Mann shared the details of his process, his results, and the implications of those results for improving local search systems as well as a conceptual model of e-resource availability errors based on the results of his research.     

Don't they teach that in high school? Examining the high school to college information literacy gap

College librarians express concern over incoming students' information literacy skills and lack of skills preparing them for college-level research. However, it is unclear whether information literacy skills are not being taught at the high school level, whether they are not being retained or transferred as students move on to college, or whether there is a disconnect between the skills taught in high school and those expected of incoming college students. This study explores these questions through a set of parallel surveys sent to a national sample of high school and college librarians. Findings suggest that high school and college librarians agree on the importance of most skills though they vary in their emphasis on their importance, and that information literacy skills are being taught in high school but do not seem to transfer to college. The paper concludes with suggestions for increased communication and collaboration to bridge the high school to college transition.     

When Online Instruction Doesn’t Measure Up: How Can You Tell,and What Should You Do?

At Duquesne University, freshmen are required to take a one-credit information literacy course. This course has traditionally been offered mostly face-to-face, but has expanded into more online offerings. Unfortunately, the experience for students and instructors online was not as positive as those involved with the face-to-face version of the course. Assessment results on a variety of levels and anecdotal evidence indicated that students did not work as well together to learn as those did in the face-to-face version of the course. Not only did instructors receive lower student evaluation scores, but students did not perform as well on their final, collaborative project. While there will be barriers to learning online, especially when students work together in a group, instructors and instructional designers can take distinct steps to make the experience a positive one. Instructors must use particular interventions to increase student-to-student interaction that leads to learning.     

Don’t You Know What Causes That? Advice,Celebration, and Justification in a Large Families Bulletin Board

A thematic analysis of an on‐line bulletin board for parents of large families revealed three prominent patterns of talk related to advice seeking and giving, celebration of family, and justification of family size. This combination of discursive behaviors seem to be largely social supportive in nature and may have implications regarding the lack of face‐to‐face social support for large families and the potential importance of communication within on‐line groups for providing that support.     

函数图中t×104/s或t/104s形式的标目标注问题

1　对期刊读者的调查为了了解科技期刊的规范化标注被读者所接收和理解的程度 ,笔者以科技论文函数图中经常出现的ｔ× 1 0 4/ｓ或ｔ/1 0 4ｓ形式的标目标注设计考题进行了调查。考题题目 :标目中 ,当量和单位分别表示为 ( 1 )ｔ×1 0 4/ｓ,( 2 )ｔ/1 0 4ｓ两种形式 ,如果对应的标值为 2时 ,请读取此时的时间ｔ值。调查对象是硕士研究生、博士研究生、正副教授、博士生导师等不同层次的期刊读者 ,共 3 4人。调查结果 :3 4人均取值为 ( 1 )ｔ =2×1 0 4ｓ;( 2 )ｔ=2× 1 0 -4 ｓ。按照国家标准有关物理量、单位和数值三者之间的关系[1] ,规范…     

人祸? 天灾?

10月29日下午,越南胡志明市西贡国际贸易中心发生爆炸并起火。截至30日晚,已有百人死亡。 据目击者描述,当地时间下午1时50分,随着一声巨大爆炸声,大火从西贡国际贸易中心2楼直窜到5楼,很快整个     

商品? 作品?

<正>屈原不爱龙舟赛,喜欢上了大长今。韩国人把端午节注册了。在一片声讨中,我们的非物质文化遗产却"叫好不好座"。几百年,甚至上千年来,祖宗留下来的历史,我们却不知道是当了作品"供奉",还是当了商品出售。