Search (177 results, page 1 of 9)

0.094750166 = product of:
  0.18950033 = sum of:
    0.18950033 = product of:
      0.37900066 = sum of:
        0.37900066 = weight(_text_:abstracts in 592) [ClassicSimilarity], result of:
          0.37900066 = score(doc=592,freq=6.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            1.3113425 = fieldWeight in 592, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.09375 = fieldNorm(doc=592)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Computer Abstracts is a CD-ROM database containing detailed abstracts taken from over 2.000 computing and IT journals. Discusses the scope and quality of information, ease of use, and value for money

Object

Computer Abstracts

0.09117339 = product of:
  0.18234678 = sum of:
    0.18234678 = product of:
      0.36469355 = sum of:
        0.36469355 = weight(_text_:abstracts in 6767) [ClassicSimilarity], result of:
          0.36469355 = score(doc=6767,freq=8.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            1.2618399 = fieldWeight in 6767, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.078125 = fieldNorm(doc=6767)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The H.W. Wilson Company announce their new full text CD-ROM database: World Authors 1900-1950, Readers' Guide for Young People, Current Biography; Full Service; and 4 new full text CD-ROM databases: Wilson Business Abstracts; Wilson General Science Abstracts; Wilson Humanities Abstracts; and Wilson Social Sciences Abstracts

0.078958474 = product of:
  0.15791695 = sum of:
    0.15791695 = product of:
      0.3158339 = sum of:
        0.3158339 = weight(_text_:abstracts in 409) [ClassicSimilarity], result of:
          0.3158339 = score(doc=409,freq=6.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            1.0927855 = fieldWeight in 409, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.078125 = fieldNorm(doc=409)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Footnote

Übers. des Titels: Comparison of classification systems used by Chemical Abstracts and by the All-Russian Institute of Scientific and Technical Information in the corresponding section of the VINITI database

Object

Chemical Abstracts

0.07736318 = product of:
  0.15472636 = sum of:
    0.15472636 = product of:
      0.3094527 = sum of:
        0.3094527 = weight(_text_:abstracts in 1677) [ClassicSimilarity], result of:
          0.3094527 = score(doc=1677,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            1.0707066 = fieldWeight in 1677, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.09375 = fieldNorm(doc=1677)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Object

Dissertation Abstracts

0.075275764 = product of:
  0.15055153 = sum of:
    0.15055153 = sum of:
      0.10940806 = weight(_text_:abstracts in 2358) [ClassicSimilarity], result of:
        0.10940806 = score(doc=2358,freq=2.0), product of:
          0.2890173 = queryWeight, product of:
            5.7104354 = idf(docFreq=397, maxDocs=44218)
            0.05061213 = queryNorm
          0.37855196 = fieldWeight in 2358, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.7104354 = idf(docFreq=397, maxDocs=44218)
            0.046875 = fieldNorm(doc=2358)
      0.041143466 = weight(_text_:22 in 2358) [ClassicSimilarity], result of:
        0.041143466 = score(doc=2358,freq=2.0), product of:
          0.17723505 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05061213 = queryNorm
          0.23214069 = fieldWeight in 2358, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046875 = fieldNorm(doc=2358)
  0.5 = coord(1/2)

Abstract

A naïve user seeking introductory information on a topic may perceive a domain as it is shown by the search results in a database; however, inconsistencies in indexing can misrepresent the full picture of the domain by including irrelevant documents or omitting relevant ones, sometimes inexplicably. A bibliometric analysis was conducted on the domain of ethics in knowledge organization in the World of Science (WoS) and Library, Information Science & Technology Abstracts (LISTA) databases to discern how it is being presented by search results in those databases and to attempt to determine why inconsistencies occurred.

Date

17. 2.2018 16:50:22

0.06382137 = product of:
  0.12764274 = sum of:
    0.12764274 = product of:
      0.25528547 = sum of:
        0.25528547 = weight(_text_:abstracts in 25) [ClassicSimilarity], result of:
          0.25528547 = score(doc=25,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.8832879 = fieldWeight in 25, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.109375 = fieldNorm(doc=25)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.062729806 = product of:
  0.12545961 = sum of:
    0.12545961 = sum of:
      0.09117339 = weight(_text_:abstracts in 228) [ClassicSimilarity], result of:
        0.09117339 = score(doc=228,freq=2.0), product of:
          0.2890173 = queryWeight, product of:
            5.7104354 = idf(docFreq=397, maxDocs=44218)
            0.05061213 = queryNorm
          0.31545997 = fieldWeight in 228, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.7104354 = idf(docFreq=397, maxDocs=44218)
            0.0390625 = fieldNorm(doc=228)
      0.034286223 = weight(_text_:22 in 228) [ClassicSimilarity], result of:
        0.034286223 = score(doc=228,freq=2.0), product of:
          0.17723505 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05061213 = queryNorm
          0.19345059 = fieldWeight in 228, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=228)
  0.5 = coord(1/2)

Abstract

Presents a brief, critical review of LISA PLaus: the CD-ROM database version of LISA and which includes the database of Current Research in Library and Information Science (CRLIS). The review covers the DOS version only, as it appeared in the Summer 1996 CD-ROM, noting that the Windows version was planned for the future. Points to the way LISA has found its mark, if not its fortune, in LISA Plus and notes its strengths, including: ideal suitability for current awareness in library and information science (LIS); massive and convenient consolidation of the published LIS literature; and massive increase in coverage from 7.900 abstracts in 1993 to over 12.000 currently. Criticizes certain features of LISA Plus, notably: the OPTI-Ware search interface; the combination of 2 databases (LISA and CRLIS) in a single, searchable database; and certain unexpected effects caused by the building of the Subject and Free Text indexes. Points particularly to great lack of consistency in the indexes and the indexing (faults that were fully rectified by a complete overhaul of the data in Summer 1996). Notes that LISA Plus is the first port of call for both information researchers and information science students. The Windows version of LISA Plus was launched in Spring 1997

Date

9. 2.1997 18:44:22

0.05527093 = product of:
  0.11054186 = sum of:
    0.11054186 = product of:
      0.22108372 = sum of:
        0.22108372 = weight(_text_:abstracts in 3305) [ClassicSimilarity], result of:
          0.22108372 = score(doc=3305,freq=6.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.7649498 = fieldWeight in 3305, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3305)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Describes the INSPEC database, claimed to be the world's largest English language bibliographic database, as well as the most comprehensive available for physics, electronics and computing. Traces the development of 'Science Abstracts' from its 1st issue published in Jan 1898 which contained 110 abstracts: 1.423 were included during this initial year. Examines subsequent growth and development, emphasizing the commitment to quality, extension of the Physics coverage, the CD-ROM database and the total of 5,75 million records included at the end of 1997. Current growth is 300.000 records per year, from over 4.000 journals and serials, plus 2.000 conference proceedings and other materials

0.051575456 = product of:
  0.10315091 = sum of:
    0.10315091 = product of:
      0.20630182 = sum of:
        0.20630182 = weight(_text_:abstracts in 4685) [ClassicSimilarity], result of:
          0.20630182 = score(doc=4685,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.7138044 = fieldWeight in 4685, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=4685)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Briefly notes the online databases that may be used to search for the kind of fiction short stories that appear in magazines: Academic index; Humanities index; Magazine index; Magazine ASAP; Newspaper & periodical abstracts; and Readers' guide to periodical literature

Object

Newspaper & periodical abstracts

0.051575456 = product of:
  0.10315091 = sum of:
    0.10315091 = product of:
      0.20630182 = sum of:
        0.20630182 = weight(_text_:abstracts in 739) [ClassicSimilarity], result of:
          0.20630182 = score(doc=739,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.7138044 = fieldWeight in 739, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=739)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Abstracts and indexes have been migrating from print to digital for over 2 decades but original full text records, both text and image, are available in a variety of media. Producers of fully electronic journals are planning to index their content rather than rely on full text browsing, even with more powerful search engines. Reviews UMI's ProQuest on CD-ROM, a combination of HW Wilson Applied Science and Technology Abstracts (AST) and full text images of the original articles. The product is currently for DOS with a Windows version planned. Discusses searching and problems

0.051575456 = product of:
  0.10315091 = sum of:
    0.10315091 = product of:
      0.20630182 = sum of:
        0.20630182 = weight(_text_:abstracts in 533) [ClassicSimilarity], result of:
          0.20630182 = score(doc=533,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.7138044 = fieldWeight in 533, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=533)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Presents a list of 110 English language periodicals in 32 disciplines which contain abstracts, indexes and/or contents listings of periodicals, conference papers, reports and books in their specific fields. Disciplines in which periodicals have most abstracting and indexing services are: medicine and health, biological sciences, law, and psychology and psychiatry

0.051575456 = product of:
  0.10315091 = sum of:
    0.10315091 = product of:
      0.20630182 = sum of:
        0.20630182 = weight(_text_:abstracts in 658) [ClassicSimilarity], result of:
          0.20630182 = score(doc=658,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.7138044 = fieldWeight in 658, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=658)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Reviews online and CD-ROM versions of Information Science Abstracts. This abstracting and indexing service focuses on information and computer science. As well as journals it covers patents, monographs, proceedings and conference papers. Highlights a number of problems with its coverage: gaps and premature terminations, duplicate records, and lack of controlles vocabulary for the first 20 years. Compares it to LISA. Assesses the DIALOG version, and the SilverPlatter version. Prefers the CD-ROM version over the online on grounds of cost

0.045586694 = product of:
  0.09117339 = sum of:
    0.09117339 = product of:
      0.18234678 = sum of:
        0.18234678 = weight(_text_:abstracts in 7219) [ClassicSimilarity], result of:
          0.18234678 = score(doc=7219,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.63091993 = fieldWeight in 7219, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.078125 = fieldNorm(doc=7219)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.045586694 = product of:
  0.09117339 = sum of:
    0.09117339 = product of:
      0.18234678 = sum of:
        0.18234678 = weight(_text_:abstracts in 2391) [ClassicSimilarity], result of:
          0.18234678 = score(doc=2391,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.63091993 = fieldWeight in 2391, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.078125 = fieldNorm(doc=2391)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.045128524 = product of:
  0.09025705 = sum of:
    0.09025705 = product of:
      0.1805141 = sum of:
        0.1805141 = weight(_text_:abstracts in 30) [ClassicSimilarity], result of:
          0.1805141 = score(doc=30,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.6245789 = fieldWeight in 30, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0546875 = fieldNorm(doc=30)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Presents a study to assist reference librarians/bibliographers in the selection of electronic formats of indexes and abstracts. It incorporated input from both general and experts users in a comparison of CD-ROM and Internet versions of Aquatic Sciences and Fisheries Abstracts (ASFA). The results indicate that CD-ROM technology, in spite of its user-friendliness, has limitations. The Internet version of ASFA has more current records, offers more comprehensive coverage of the ASFA databases, and allows unlimited remote access by faculty, staff, and students. Limitations of the Internet version include speed of access, search engine inadequacies, and the need for a more extensive training programme

0.045128524 = product of:
  0.09025705 = sum of:
    0.09025705 = product of:
      0.1805141 = sum of:
        0.1805141 = weight(_text_:abstracts in 4862) [ClassicSimilarity], result of:
          0.1805141 = score(doc=4862,freq=4.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.6245789 = fieldWeight in 4862, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4862)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The article focuses on the EBSCO databases that provide services to libraries. The Library, Information Science and Technology Abstracts (LISTA) include resources focusing on librarianship, classification, cataloging, bibliometrics, online information retrieval, and information science. LISTA has more than 21,000 articles from more than 600 periodicals and includes more than 5,000 conference papers and reports. In the database, there are also cited references and the number of times the source was used can also be found within the database. These are helpful tips in bibliography researching. The database has also several search options including "Basic Search," "Advanced Search," and Indexes." The EBSCOhost interface is simple to use and easy to grasp while LISTA is a free abstract database.

0.036469355 = product of:
  0.07293871 = sum of:
    0.07293871 = product of:
      0.14587742 = sum of:
        0.14587742 = weight(_text_:abstracts in 227) [ClassicSimilarity], result of:
          0.14587742 = score(doc=227,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.50473595 = fieldWeight in 227, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=227)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.036469355 = product of:
  0.07293871 = sum of:
    0.07293871 = product of:
      0.14587742 = sum of:
        0.14587742 = weight(_text_:abstracts in 854) [ClassicSimilarity], result of:
          0.14587742 = score(doc=854,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.50473595 = fieldWeight in 854, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=854)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Presents an assessment of Bulletin Board for Libraries (BUBL). This major electronic information resource for librarians operates from the University of Strathclyde, Glasgow. The main Home Page offering is BUBL Link (Librarians for Networked Knowledge), which utilises a WWW/Z39.50 system to access thousands of Internet sources, catalogues by BUBL in exactly the same way that librarians are accustomed to in dealing with bibliographic documents. Other services include BUBL Journals (indexes, abstracts); BUBL search; and BUBL Mail

0.036469355 = product of:
  0.07293871 = sum of:
    0.07293871 = product of:
      0.14587742 = sum of:
        0.14587742 = weight(_text_:abstracts in 4419) [ClassicSimilarity], result of:
          0.14587742 = score(doc=4419,freq=2.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.50473595 = fieldWeight in 4419, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.0625 = fieldNorm(doc=4419)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.03567723 = product of:
  0.07135446 = sum of:
    0.07135446 = product of:
      0.14270893 = sum of:
        0.14270893 = weight(_text_:abstracts in 2356) [ClassicSimilarity], result of:
          0.14270893 = score(doc=2356,freq=10.0), product of:
            0.2890173 = queryWeight, product of:
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.05061213 = queryNorm
            0.49377298 = fieldWeight in 2356, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              5.7104354 = idf(docFreq=397, maxDocs=44218)
              0.02734375 = fieldNorm(doc=2356)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Chemical Abstracts Service (CAS) und CSA haben vereinbart, im Laufe des Jahres 2004 acht weitere CSADatenbanken über den Online-Dienst STN International verfügbar zu machen. Dieser Vertrag sichert STN®, der gemeinsam von CAS in den USA, FIZ Karlsruhe in Europa und IST in Japan betrieben wird, seine Position als größter unabhängiger Online-Anbieter von CSADatenbanken mit Schwerpunkt auf CSAs Angebot in den Bereichen Biowissenschaften, Umwelt, Meereswissenschaften, Informatik, Materialwissenschaft, Ingenieurwissenschaften, Luft- und Raumfahrt. Die demnächst bei STN angebotenen CSA-Datenbanken enthalten Informationen zu Biotechnologie, Sonderbereichen des Ingenieurwesens, geologischen und ökologischen Studien sowie Bibliothekswesen und Informationswissenschaft. Zusätzlich zu den neu hinzukommenden Datenbanken bietet STN Zugriff auf ein breites Spektrum von CSA-Fachdatenbanken, von denen einige über das europäische STN-Servicezentrum im FIZ Karlsruhe angeboten werden. STN International (The Scientific and Technical Information Network) ist der führende Online-Service für Wissenschaft und Technik mit einem Angebot von über 200 Fachdatenbanken. STN wird gemeinsam von drei Servicezentren betrieben: von CAS in Columbus, Ohio;vom FIZ Karlsruhe und von derJapan Science and Technology Agency in Tokio. CSA, ein Unternehmen der Cambridge Information Group, ist einer der führenden Anbieter von bibliografischen Datenbanken und gedruckten Zeitschrif ten, dievon über 4.000 Forschungseinrichtungen aus aller WeIt genutzt werden. CSA veröffentlicht jährlich über 700.000 Abstracts aus über 14.000 Quellen. Sein preisgekrönter Internet-Datenbank-Dienst bietet Web-Zugang zu über i00 bibliografischen Datenbanken aus wichtigen Forschungsbereichen wie zum Beispiel Materialwissenschaften, Umweltschutz, Biowissenschaften, Meereswissenschaften, Biotechnologie, Ingenieurwissenschaften, Informatik, Soziologie, Informationstechnologie, Kunstgeschichte, Politikwissenschaft und Linguistik.
Der Chemical Abstracts Service (CAS), eine Abteilung der American Chemical Society, ist eine wissenschaftliche Organisation, die für Wissenschaftler in Forschung und Entwicklung hochwertige Inhalte und Werkzeuge für eine umfassende und effektive digitale Informationsumgebung erstellt und verfügbar macht. CAS bietet Zugang zu weltweit veröffentlichten wissenschaftlichen Publikationen aus Fachzeitschriften und Patentliteratur-alles Wichtige zur Chemie sowie umfangreiche Informationen im Bereich Biowissenschaften und zu zahlreichen weiteren Fachgebieten. Die nachgewiesene Literatur, die Daten und Fakten reichen bis ins frühe 20. Jahrhundert zurück. Außerdem betreibt CAS das STN-Servicezentrum in Nordamerika, veröffentlicht die gedruckte Version der Chemical Abstracts (CA) und verwandte Publikationen und bietet Dienste auf CD-ROM an. Die renommierte Informationseinrichtung entwickelt und pflegt das CAS Chemical Registry System, produziert eine Reihe von thematisch verwandten Online-Datenbanken und bietet das Desktop-Recherchetool »SciFinder« an. Das FIZ Karlsruhe ist eine gemeinnützige wissenschaftliche Serviceeinrichtung, die wissenschaftliche und technische Informationsdienste in elektronischer und gedruckter Form produziert und vermarktet. Es bietet seine Dienstleistungen weltweit an. Schwerpunkt sind hoch entwickelte Fachdatenbanken zu allen Bereichen von Naturwissenschaft und Technik sowie zum internationalen Patent- und Markenwesen. Die Informationen werden elektronisch über verschiedene Vertriebswege im Internet, über proprietäre Datennetze sowie in gedruckter Form als Spezialdienste angeboten. In Zusammenarbeit mit Institutionen aus dem In- und Ausland erstellt das FIZ Karlsruhe Datenbanken in den Fachgebieten Energie, Kernforschung und Kerntechnik, Kristallografie, Kunststoffe, Mathematik, Informatik und Physik und bietet einen Recherchedienst für alle Unternehmen oder Institutionen mit FuE-Aktivitäten an. Größter Geschäftsbereich ist STN International. Das FIZ Karlsruhe ist Mitglied der Leibniz-Gemeinschaft, in der sich außeruniversitäre Forschungs- und Serviceeinrichtungen verschiedener Wissenschaftsbereiche zusammengeschlossen haben, die gemeinsam von Bund und Ländern gefördert werden.

Object

Chemical Abstracts