共查询到20条相似文献，搜索用时 859 毫秒
1.
《文物保护研究》2013,58(2):58-60
AbstractA sodium azide based solution decomposes when in contact with materials which have the potential to tarnish silver by evolution of hydrogen sulphide. The rate of evolution of nitrogen gas from the reagent has been used to assess the severity of the tarnishing. The test is microchemical and takes only a few minutes to perform. 相似文献
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《The Reference Librarian》2013,54(91-92):5-22
Summary Reference works were present in the earliest libraries; and their numbers have grown inexorably ever since. They consume an increasing share of library acquisitions budgets. This article traces the evolution of reference collections, drawing on experiences at the author's library. The author concludes that while reference questions will always be with us; it is perhaps less certain that they will always be answered from “reference works” in collections labeled “reference.” 相似文献
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Noel Avon Wilson 《广播与电子媒介杂志》2013,57(4):441-448
Children from ages 4 to 9 watched segments from Sesame Street and answered questions about television reality. Factor analysis produced three reality dimensions: (a) Sesame Street really exists, (b) television characters can see and hear us, and (c) what you see is inside the television set. For preschoolers, age was the most important variable in regard to television reality. There were other background variables for older children: Children from working‐class backgrounds were more apt to believe that television characters can see and hear us and that they reside inside the television set than their middle‐ and upper‐class age peers. 相似文献
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Abstract This paper addresses some to the problems associated with the ability of elementary school children to successfully retrieve material in the school library media center using either the card or computer catalogues and presents some alternative methods of classification which may help to alleviate these problems. Primary objectives of the paper include inquiry into the need for an alternative method of classification for children, whether children of elementary school age have the ability to successfully use a system of classification, the extent to which the use of colors and/or symbols as search aides may facilitate children/s search efforts and the steps involved in the evolution of such an alternative classification system. Several case studies are examined and a detailed case study of The Common School Library in Amherst, Massachusetts is presented. Findings of this study indicate that children do have the ability to use a classification system which is designed in keeping with their developmental level and that the use of colors and/or symbols as supplementary search tools does facilitate children/s search efforts. The author also presents recommendations regarding the use of alternative systems of classification with other segments of the population who may have difficulty using standard means of library classification. 相似文献
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《Communication monographs》2012,79(2):109-115
Perceived difficulties inherent in logical empiricism cited by “action theorists” ignore interpretations and modifications of empirical reasoning. Although it is highly unlikely that invariant laws of a universal nature will ever be discovered about any kind of phenomenon, critics of conventional science often cite this as an example of the deficiencies of empiricism without being aware of more recent interpretations or modifications of empirical reasoning. The authors focus on recent critiques of empiricism, which are frequently cited as a basis for support of interpretive approaches. They maintain that contemporary empirical reasoning has much to offer that subjectivist thought does not. The present state of communication research probably does not allow us to venture into hermeneutics, because of the incomplete nature of what is presently known about communication processes and effects. Examining levels of language and explanation helps us solve logical inconsistencies that have appeared to present philosophical problems in the past. 相似文献
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ABSTRACT Integrating knowledge-based resources at the point of care is an important opportunity for hospital library involvement. In the progression of an IAIMS planning grant, the digital library is recognized as pivotal to the success of information domain integration throughout the institution. The planning process, data collection, and evolution of the planning project are discussed. 相似文献
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《Communication Teacher》2013,27(2):96-103
Those of us who teach technical and professional writing may read [findings on typical pedagogical effectiveness] and end up feeling that our efforts to simulate workplace writing and to teach workplace genres in our classrooms are at best unreliable and at worst futile. Blakeslee (2001), p. 170. Courses: Writing for Public Relations, Business Communications; Marketing Objective: Students will be able to identify audience issues, marshal evidence, garner support, and motivate adoption of a position via visual imagery and persuasive writing 相似文献
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《The Reference Librarian》2013,54(60):3-25
Summary Understanding user needs and the ways in which users utilize information systems is important since it can help us in developing and designing more effective and efficient information systems. This paper examines some of the theories that have evolved to explain what kind of mental processes are required for the use of information systems. Research on users of information systems is categorized into two basic groups (system-oriented vs. user-oriented studies), and reviewed. A sample of methodologies used for examining users and their information seeking behavior is then introduced and described. Finally, implications of these theories and methods for librarians and information specialists are discussed. 相似文献
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《Journal Of Access Services》2013,10(2):47-52
ABSTRACT The evolution of statewide resource sharing and reciprocal borrowing for Maryland public libraries is discussed. Beginning in the 1950s, the Enoch Pratt Free Library assumed responsibility for filling interlibrary loan requests for the state due to the size of its collection. In 1971, Pratt became the State Library Resource Center and its interlibrary loan responsibilities became formalized. Through a series of technological advancements in library catalogs and interlibrary loan systems, Maryland has arrived at the MARINA system to facilitate sharing resources throughout the state. The state has a long-standing philosophy of cooperation, which makes the MARINA endeavor possible. 相似文献
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ABSTRACT As technology continues to influence the way we do business, change has been and will continue to be inevitable. All around us, we see the Internet playing a major role in our lives from the way we pay bills and do banking to the way we buy stock, shop as consumers, and obtain an education. You can't escape it, and librarians long ago realized this truth. To wit library services have evolved to accommodate the informational needs demanded by this ever-expanding industry. This evolution of library services can be seen, for example, in the way we promote and provide reference, circulation, and reserves services with inroads even into technical or resource services. With distance education libraries are positioning themselves to be major players in this phenomenon at all levels: local, national, and international. One library service that is beginning to proceed into the distance-learning arena is interlibrary loan/document delivery. Interlibrary Loan, a traditional library service for local users, whether provided by an academic, public, or special library is finding itself in the distance education movement. To explore this, the focus of this article is to examine the ways in which interlibrary loan impacts and supports distance education through technology and services. 相似文献
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Carol G. Hixson 《Cataloging & classification quarterly》2020,58(3-4):294-302
AbstractThe beginnings and the early years of the Program for Cooperative Cataloging (PCC) had a profound impact on the approach taken to cataloging in North America and around the world. The commitment to standards, cooperation, and expanded access also had an impact that went far beyond cataloging operations. One library dean traces the evolution of her vision and contemplates how the PCC’s principles have shaped her entire career and have affected the libraries in which she has worked. 相似文献
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《Journal Of Access Services》2013,10(3-4):127-135
ABSTRACT The author reviews the evolution of the Circulation Department at the Georgia Institute of Technology (Georgia Tech) Library and Information Center from 2001 to the present. It is shown how a traditional circulation department with poor customer relations transformed itself by adopting innovative policies and services leading to improved customer relations. 相似文献
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《The Reference Librarian》2013,54(74):165-175
Summary Government information is abundant on the World Wide Web, but finding that information is often difficult. The usual routine of utilizing search engines or directories does not work well, unless an individual is interested in a specific government agency. Instead, the savvy librarian will be well advised to check the prominent journals and newspapers for announcements of new sites and utilize the homepage of the Library of Congress. With some education and experience, a user can quickly find information using the Library of Congress' homepage, the Librarian's Index to the Internet, and Beaucoup. 相似文献
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《Legal Reference Services Quarterly》2013,32(1-2):35-46
SUMMARY While the reference interview remains the vehicle whereby librarians are able to understand the information needs of users in order to assist them, the ways in which the reference interview is conducted have changed with time and technology. This chapter provides a brief history of the evolution of the reference interview, from the face-to-face transaction to the current trends of e-mail and chat software mediated reference interviews, and examines application of these current trends in virtual reference services. While the methods of conducting the reference interview have certainly changed, the ultimate goal of meeting the information needs of the user remains constant. 相似文献
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《The Reference Librarian》2013,54(69-70):171-179
Summary Distance education's steady evolution from correspondence courses to virtual classrooms poses a significant challenge to the delivery of library services. Success in achieving widespread electronic access to library catalogs and online databases serves only as the foundation for meeting this challenge. Full evolution to virtual library services demands the addition of dynamic and interactive electronic reference services. The Telebase Help Desk service is one model of an Internet-based interactive reference service. 相似文献
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《The Reference Librarian》2013,54(56):125-146
Abstract The increasing utilization of computer technology in the public and private sectors, particularly since the mid-1980s, has brought about significant changes in the way organizations do their business. It has led to improvements in productivity, more timely delivery of services, and more efficient business communication; it has also had significant cultural impact. The technology has transformed our working environments, but there has not been an equivalent transformation in records and archival practice. If the 1980s was the decade in which the tidal wave of electronic change hit us, the 1990s has seen the gradual realization that the new technology alone, without appropriate information and records management strategies, generates substantial risks. While the technology is promoted as the solution to all information management requirements, this message glosses over some critical issues. These issues go to the heart of the preservation of the corporate memory of our society. In this article the author introduces us to major issues in electronic records management from an archival perspective. He illustrates these points through reference to policy development at the Australian Archives. 相似文献
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《文物保护研究》2013,58(3):7-11
AbstractChristian sacred art is not only an artistic and aesthetic phenomenon, but can also be seen as a manifestation of the divine, the objects becoming a presence of what they represent. A substantial proportion of this kind of art remains dispersed in churches and ecclesiastic treasuries without any special provision for its care and much is still in ceremonial use, continuing to be handled and moved. Recording by inventory and transfer to museums are only recent developments. Portugal has developed various strategies for the preservation of these collections, including the creation of Diocesan Sacred Art Commissions, diocesan museum networks where small museums and museological treasuries are maintained separately but have a common technical staff, a Secure Church Programme and temporary exhibitions, which play a role in conservation, promotion and public awareness. Although not conventional conservation, these actions have helped us to keep the memory of the past alive and let us carry it into the future. 相似文献