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1.
A previous study by the author of 35 titles in Elsevier's Earth and Planetary Sciences digital back file package revealed that 73.6% of the 6,038 issues published before digital format was available had at least one figure with unacceptable quality. During 2006–2009 Elsevier conducted a rescanning project to improve the quality of the images in their backfile packages for issues published prior to 1995. The author conducted a follow-up study to determine the effectiveness of Elsevier's rescanning project. Although the project corrected many problems, a noticeable number of line drawings are still unacceptable, as well as images in issues published during the 1995–1998 time period.  相似文献   

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This study's purpose was to establish the image quality of photographs and figures in online journals verses the print format of five Elsevier titles. The images were evaluated on a point scale, taking three issues out of each journal every five years from 1970 to 2000. The study discovered that there is a significant loss of content in the online photographs from 1970 to 1995. The data found in this study provide important discussion points when considering the purchase of electronic journal backfiles.  相似文献   

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Purpose: To begin investigating the impact of electronic journals on research processes such as information seeking, the authors conducted a pilot journal-use study to test the hypothesis that patrons use print and electronic journals differently.Methodology: We placed fifteen high-use print titles also available in electronic format behind the circulation desk; patrons were asked to complete a survey upon requesting a journal. We also conducted a parallel survey of patrons using library computers. Both surveys asked patrons to identify themselves by user category and queried them about their journal use.Results: During the month-long study, patrons completed sixty-nine surveys of electronic and ninety surveys of print journal use. Results analysis indicated that fellows, students, and residents preferred electronic journals, and faculty preferred print journals. Patrons used print journals for reading articles and scanning contents; they employed electronic journals for printing articles and checking references. Users considered electronic journals easier to access and search than print journals; however, they reported that print journals had higher quality text and figures.Discussion/Conclusion: This study is an introductory step in examining how electronic journals affect research processes. Our data revealed that there were distinct preferences in format among categories. In addition to collection management implications for libraries, these data also have implications for publishers and educators; current electronic formats do not facilitate all types of uses and thus may be changing learning patterns as well.  相似文献   

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在开放存取蓬勃发展和高校图书馆馆藏电子化的大趋势下,高校图书馆的文献保障工作如何适应新的趋势,需要深入研究。本文以武汉大学2013年被SCIE、SSCI和A&HCI所收录文章的期刊类参考文献为研究样本,采用一种针对期刊类参考文献的以年为单位的引文检查方法,匹配世界主要开放存取期刊目录以及武汉大学图书馆馆藏电子和印本期刊目录,研究当前这三类期刊对样本参考文献及来源期刊的收藏和缺藏情况。以此探讨三类期刊在高校图书馆文献资源保障中的特征与趋势,以及开放存取期刊对馆藏资源建设的影响,为高校图书馆进一步优化期刊馆藏体系和提高文献保障率提供科学依据。  相似文献   

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Objective

Clinical and research usefulness of articles can depend on image quality. This study addressed whether scans of figures in black and white (B&W), grayscale, or color, or portable document format (PDF) to tagged image file format (TIFF) conversions as provided by interlibrary loan or document delivery were viewed as acceptable or useful by radiologists or pathologists.

Methods

Residency coordinators selected eighteen figures from studies from radiology, clinical pathology, and anatomic pathology journals. With original PDF controls, each figure was prepared in three or four experimental conditions: PDF conversion to TIFF, and scans from print in B&W, grayscale, and color. Twelve independent observers indicated whether they could identify the features and whether the image quality was acceptable. They also ranked all the experimental conditions of each figure in terms of usefulness.

Results

Of 982 assessments of 87 anatomic pathology, 83 clinical pathology, and 77 radiology images, 471 (48%) were unidentifiable. Unidentifiability of originals (4%) and conversions (10%) was low. For scans, unidentifiability ranged from 53% for color, to 74% for grayscale, to 97% for B&W. Of 987 responses about acceptability (n=405), 41% were said to be unacceptable, 97% of B&W, 66% of grayscale, 41% of color, and 1% of conversions. Hypothesized order (original, conversion, color, grayscale, B&W) matched 67% of rankings (n=215).

Conclusions

PDF to TIFF conversion provided acceptable content. Color images are rarely useful in grayscale (12%) or B&W (less than 1%). Acceptability of grayscale scans of noncolor originals was 52%. Digital originals are needed for most images. Print images in color or grayscale should be scanned using those modalities.  相似文献   

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ABSTRACT

Researchers must choose between many sources when obtaining journal articles. University of Toledo faculty and graduate students in the sciences, pharmacy, and engineering were surveyed to ascertain their preferences in journal article formats and features, and their awareness, frequency of use, and preference ranking of four services: traditional interlibrary loan, electronic journals, and faxes from either a storage depository or the UnCover document delivery service. Speed and print quality topped the desired features; faxing was the least desirable format. Electronic journals and interlibrary loan were the most used services, though there are indications that interlibrary loan is used reluctantly.  相似文献   

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The article reports the results of a survey on the use of printed and electronic journals in a science library. In May 2003, when the survey was conducted, users had already been exposed to electronic journals for a number of years, most of the scientific journals were accessible in electronic format while the print format was still available. The major findings are that more than 80% of the respondents frequently use and prefer an electronic format, irrespective of their rank or age. Most previous studies found an inverse relationship between e-journal usage and age, but these results indicate that by now users of all ages switched to the electronic format not only in terms of usage but of preference as well.  相似文献   

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The article describes a follow-up to Clark's 2012 examination of performing arts students' format preferences; it also explored their preferred sources for course-related information. This mixed-methods study was implemented at three institutions and included an online Qualtrics survey and focus groups. Results indicated a continued shift toward digital resources, with strong preferences for obtaining electronic journals and reference materials through the library. Print scores and books remained popular; however, students appeared more open to electronic options when compared to the 2012 results. Freely available online video and audio continued to enjoy popularity. Students want the libraries to acquire a mix of both physical and electronic resources, and they favor print books and scores.  相似文献   

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This article is a revised version of a talk given at the ALPSP seminar of the same name in February 2005. The current state of play with electronic‐only (‘e‐only’) journals is reviewed, along with some data on the different ways print and electronic editions are used. The drivers for and against a move to e‐only journals are discussed, including economic and commercial issues, long‐term access and preservation, and the growing divergence between the capabilities of print and electronic journals.  相似文献   

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数字对象唯一标志符DOI(digital object identifier),已成为云计算平台上电子文献样本存储和按需服务的最佳应用技术。本文介绍了DOI的发展历史与国际现状,分析了大数据时代期刊DOI的存在意义,特别是2009年JCR新增了eigenfactor score和article influence score 2个评价指标后,DOI已成为评价指标的唯一依据。对2013年300种高校期刊进行了分析,发现其DOI应用比例严重偏低,仅占17.6%,原因有3点:1)期刊无独立网站和过刊回溯功能;2)申请了DOI,但没有针对期刊的文章信息进行注册或在文章上注明DOI;3)期刊网站改版或者网络链接(URL)的变更,没有及时重新注册DOI元数据。建议我国期刊建立数字化平台网站或与国内外大型出版集团合作,在拥有DOI号的同时,同步进行注册,使其成为期刊数字出版的"利器",为广大受众服务,使国内与国外数字出版同步发展。  相似文献   

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Scans of journal articles originally published in print, otherwise known as digital journal backfiles, benefit library patrons by providing near instantaneous access to important older information and full-text searchability. Digital backfiles can serve as a reliable surrogate for their corresponding print journals which could be removed from the library, freeing up space for other patron services. Both benefits are realized when the scanned articles are of sufficient clarity to replace the print versions. Several studies have analyzed small and subject-narrow sections of Elsevier's digital backfile. This article contains a scan-quality analysis from 1578 journals that contain nearly four million articles and represents a significant portion of Elsevier's entire digital journal backfile. We divided journals into three categories and five discipline-specific classifications and compared them by logistic regression for differences in scan quality. Approximately 4.2 % of the articles analyzed contained illegible text, tables, or figures. This data may inform a library's acquisition, retention and space-planning decisions that in turn will affect a patron's access to and use of electronic journal articles.  相似文献   

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《资料收集管理》2013,38(1-2):33-35
ABSTRACT

The three papers that follow detail the funding issues that underlie a multi-campus shared digital collection; the implementation of an experiment to determine costs incurred and avoided, usage and user preferences when print journals are relocated to storage and users must rely on the electronic versions; and finally, campus perspectives on UC libraries' collaborative environment, the co-investment models used to fund shared collections and University-wide participation in an extensive and complicated research project.  相似文献   

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OBJECTIVES: Patterns of use of electronic versions of journals supplied by an academic health sciences library were examined to determine whether they differed from patterns of use among corresponding print titles and to relate the applicability of print collection development practices to an electronic environment. METHODS: Use data supplied by three major vendors of electronic journals were compared to reshelving data for corresponding print titles, impact factors, and presence on Brandon/Hill Lists. RESULTS: In collections where one-click access from a database record to the full text of articles was possible, electronic use correlated with print use across journal pairs. In both versions, Brandon/Hill titles were used more frequently than non-Brandon/Hill titles, use had modest correlations with journals' impact factors, and clinical use appeared to be higher than research use. Titles that had not been selected for the library's print collections, but which were bundled into publishers' packages, received little use compared to electronic titles also selected in print. CONCLUSIONS: Collection development practices based on quality and user needs can be applied with confidence to the electronic environment. Facilitating direct connections between citation databases and the corresponding journal articles regardless of platform or publisher will support scholarship and quality health care.  相似文献   

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