Search (7 results, page 1 of 1)

  • × author_ss:"Umstätter, W."
  1. Umstätter, W.: ¬Die Kunst der Frage (1993) 0.01
    0.014011508 = product of:
      0.028023016 = sum of:
        0.028023016 = product of:
          0.08406904 = sum of:
            0.08406904 = weight(_text_:27 in 5070) [ClassicSimilarity], result of:
              0.08406904 = score(doc=5070,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.54106504 = fieldWeight in 5070, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5070)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Bibliotheksdienst. 27(1993) H.8, S.1180-1191
  2. Umstätter, W.: Nutzen der Indexierung bei Online-Datenbanken (1992) 0.01
    0.012009865 = product of:
      0.02401973 = sum of:
        0.02401973 = product of:
          0.072059184 = sum of:
            0.072059184 = weight(_text_:27 in 55) [ClassicSimilarity], result of:
              0.072059184 = score(doc=55,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.46377003 = fieldWeight in 55, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.09375 = fieldNorm(doc=55)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    14. Online-Tagung der DGD, Frankfurt am Main, 27. bis 30. April 1992: Proceedings. Hrsg.: W. Neubauer u. S. Plagemann
  3. Umstätter, W.: ¬Die Zukunft des Buches (1998) 0.01
    0.007005754 = product of:
      0.014011508 = sum of:
        0.014011508 = product of:
          0.04203452 = sum of:
            0.04203452 = weight(_text_:27 in 116) [ClassicSimilarity], result of:
              0.04203452 = score(doc=116,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.27053252 = fieldWeight in 116, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=116)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    2. 1.1998 17:27:33
  4. Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982) 0.01
    0.0060049323 = product of:
      0.012009865 = sum of:
        0.012009865 = product of:
          0.036029592 = sum of:
            0.036029592 = weight(_text_:27 in 5279) [ClassicSimilarity], result of:
              0.036029592 = score(doc=5279,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.23188502 = fieldWeight in 5279, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5279)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    Aus der Benutzung der Universitätsbibliothek Ulm wurde eine Halbwertszeit-Funktion in der naturwissenschaftlichen Literatur von t1/2=5 Jahren bestimmt. Eine interessante Abweichung von dieser Halbwertszeit-Funktion ist bei der Bestellung der neuesten Zeitschriften zu beobachten. Der Grund hierfür liegt vermutlich darin, daß Wissenschaftler das Vierfache an neuester Literatur lesen müssen, um wissenschaftliche Trends zu überschauen. Eine weitere Abweichung ist in der ältesten Literatur festzustellen, bei den sog. 'citation classics'. Übereinstimmung zeigt sich im Zitier- und Kopierverhalten bei Zeitschriftenliteratur, die älter als 2 Jahre ist. Etwa 27% der an die UB Ulm gerichteten Literaturanforderungen betreffen Zeitschriftenaufsätze mit einem Alter von über 10 Jahren, da diese Bestände für die Benutzer nur schwer zugänglich sind. Dies zeigt die große Bedeutung einer Freihand-Bibliothek
  5. Umstätter, W.: Wissensorganisation mit Hilfe des semiotischen Thesaurus : auf der Basis von SGML bzw. XML (2000) 0.01
    0.00500411 = product of:
      0.01000822 = sum of:
        0.01000822 = product of:
          0.030024659 = sum of:
            0.030024659 = weight(_text_:27 in 6648) [ClassicSimilarity], result of:
              0.030024659 = score(doc=6648,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.19323751 = fieldWeight in 6648, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=6648)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    9.10.2001 20:27:17
  6. Umstätter, W.; Wagner-Döbler, R.; Löffler, K.: Einführung in die Katalogkunde : Vom Zettelkatalog zur Suchmaschine (2005) 0.00
    0.0025075758 = product of:
      0.0050151516 = sum of:
        0.0050151516 = product of:
          0.015045454 = sum of:
            0.015045454 = weight(_text_:22 in 4880) [ClassicSimilarity], result of:
              0.015045454 = score(doc=4880,freq=2.0), product of:
                0.15554829 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044419147 = queryNorm
                0.09672529 = fieldWeight in 4880, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.01953125 = fieldNorm(doc=4880)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 1.2006 19:45:49
  7. Umstätter, W.: Zwischen Informationsflut und Wissenswachstum : Bibliotheken als Bildungs- und Machtfaktor der modernen Gesellschaft (2009) 0.00
    0.002001644 = product of:
      0.004003288 = sum of:
        0.004003288 = product of:
          0.012009864 = sum of:
            0.012009864 = weight(_text_:27 in 3930) [ClassicSimilarity], result of:
              0.012009864 = score(doc=3930,freq=2.0), product of:
                0.15537697 = queryWeight, product of:
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.044419147 = queryNorm
                0.077295005 = fieldWeight in 3930, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4979727 = idf(docFreq=3636, maxDocs=44218)
                  0.015625 = fieldNorm(doc=3930)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    27. 8.2008 15:02:24