MIT Guide to Science and Engineering Communication 2ed - J Paradis (MIT 2002) Episode 6

Tham khảo tài liệu 'mit guide to science and engineering communication 2ed - j paradis (mit 2002) episode 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Searching the Literature 115 Ask colleagues and supervisors about literature guides and types of publications. Also check with reference librarians. For example if research reports from the Naval Research Laboratory in Orlando Florida are possible sources the NTIS database will be a useful literature guide. If articles in the journal IEEE Transactions on Medical Imaging are important to your work you might want to see what abstracts journals abstract its articles. As mentioned above the Web resource JAKE is a useful tool for determining what databases index a particular journal. Information about where specific journals are indexed is also provided in Ulrich s International Periodicals Directory located in the reference section of your library. Ulrich s is available in hard copy CD-ROM and on-line formats . As Figure shows IEEE Transactions on Medical Imaging is indexed in more than a dozen different places. To trace a specific author look in the author index of a literature guide. Electronic searching is versatile. Your query goes directly to the electronic files. Subject Searching Subject searching means using subject headings or keywords to trace documents. With keywords you can search either titles or subject areas. You identify keywords in books articles or thesauri. You then search the database on-line catalog or card catalog. Subject searches can be useful when you don t know much about the subject or when you just want to browse. Subject searching is also an excellent cross-disciplinary approach because the cross-references often show topical relationships between materials you don t normally associate. In the sciences and applied sciences however the number of terms is so vast and expands at such a rapid rate that you need to use thesauri if you want to be accurate. In spite of its comfortable encyclopedialike feel subject searching is often not the best technique. It s slow even on-line and it often produces barren

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