Document (#6249)

Editor
National Library of Medicine
Title
Medical Subject Headings : supplementary chemical records
Issue
1994.
Imprint
Bethesda, MD : NLM, Bibliographic Services Division
Year
1993
Pages
1325 S
Series
PB94-121993/WLI
Abstract
The document contains records of approximately 23.000 chemicals which since 1970 have been mentioned in a significant way in journals indexed in MEDLINE, the NLM's online bibliographic database
Field
Chemie
Medizin
Object
MeSH
Medline

Similar documents (content)

  1. Bronson, R.J.: NLM's MeSH vocabulary file (1992) 0.55
    0.5527464 = sum of:
      0.5527464 = product of:
        1.3265914 = sum of:
          0.018763442 = weight(abstract_txt:which in 3062) [ClassicSimilarity], result of:
            0.018763442 = score(doc=3062,freq=2.0), product of:
              0.041456766 = queryWeight, product of:
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.014168094 = queryNorm
              0.45260262 = fieldWeight in 3062, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.0369453 = weight(abstract_txt:online in 3062) [ClassicSimilarity], result of:
            0.0369453 = score(doc=3062,freq=2.0), product of:
              0.06512682 = queryWeight, product of:
                1.2533785 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.014168094 = queryNorm
              0.5672824 = fieldWeight in 3062, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.031747214 = weight(abstract_txt:subject in 3062) [ClassicSimilarity], result of:
            0.031747214 = score(doc=3062,freq=1.0), product of:
              0.074165314 = queryWeight, product of:
                1.3375274 = boost
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.014168094 = queryNorm
              0.4280601 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.041308787 = weight(abstract_txt:database in 3062) [ClassicSimilarity], result of:
            0.041308787 = score(doc=3062,freq=1.0), product of:
              0.08839453 = queryWeight, product of:
                1.4602089 = boost
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.014168094 = queryNorm
              0.4673229 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.102881275 = weight(abstract_txt:headings in 3062) [ClassicSimilarity], result of:
            0.102881275 = score(doc=3062,freq=2.0), product of:
              0.12890744 = queryWeight, product of:
                1.7633612 = boost
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.014168094 = queryNorm
              0.7981019 = fieldWeight in 3062, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.10369844 = weight(abstract_txt:medical in 3062) [ClassicSimilarity], result of:
            0.10369844 = score(doc=3062,freq=1.0), product of:
              0.16327208 = queryWeight, product of:
                1.9845326 = boost
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.014168094 = queryNorm
              0.6351266 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.188484 = weight(abstract_txt:chemical in 3062) [ClassicSimilarity], result of:
            0.188484 = score(doc=3062,freq=1.0), product of:
              0.24317192 = queryWeight, product of:
                2.4219155 = boost
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.014168094 = queryNorm
              0.77510595 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.28726852 = weight(abstract_txt:supplementary in 3062) [ClassicSimilarity], result of:
            0.28726852 = score(doc=3062,freq=1.0), product of:
              0.32204938 = queryWeight, product of:
                2.7871704 = boost
                8.155442 = idf(docFreq=33, maxDocs=43556)
                0.014168094 = queryNorm
              0.8920015 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.155442 = idf(docFreq=33, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.091716796 = weight(abstract_txt:records in 3062) [ClassicSimilarity], result of:
            0.091716796 = score(doc=3062,freq=1.0), product of:
              0.18954238 = queryWeight, product of:
                3.023921 = boost
                4.424095 = idf(docFreq=1418, maxDocs=43556)
                0.014168094 = queryNorm
              0.4838854 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.424095 = idf(docFreq=1418, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
          0.42377758 = weight(abstract_txt:nlm's in 3062) [ClassicSimilarity], result of:
            0.42377758 = score(doc=3062,freq=1.0), product of:
              0.4173391 = queryWeight, product of:
                3.17283 = boost
                9.283908 = idf(docFreq=10, maxDocs=43556)
                0.014168094 = queryNorm
              1.0154275 = fieldWeight in 3062, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.283908 = idf(docFreq=10, maxDocs=43556)
                0.109375 = fieldNorm(doc=3062)
        0.41666666 = coord(10/24)
    
  2. Voigt, K.; Brüggemann, R.: Evaluation criteria for environmental and chemical databases (1998) 0.29
    0.28666484 = sum of:
      0.28666484 = product of:
        1.1466594 = sum of:
          0.026389496 = weight(abstract_txt:online in 4294) [ClassicSimilarity], result of:
            0.026389496 = score(doc=4294,freq=2.0), product of:
              0.06512682 = queryWeight, product of:
                1.2533785 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.014168094 = queryNorm
              0.40520167 = fieldWeight in 4294, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
          0.028642533 = weight(abstract_txt:bibliographic in 4294) [ClassicSimilarity], result of:
            0.028642533 = score(doc=4294,freq=1.0), product of:
              0.086660944 = queryWeight, product of:
                1.4458193 = boost
                4.2305613 = idf(docFreq=1721, maxDocs=43556)
                0.014168094 = queryNorm
              0.33051258 = fieldWeight in 4294, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2305613 = idf(docFreq=1721, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
          0.05110637 = weight(abstract_txt:database in 4294) [ClassicSimilarity], result of:
            0.05110637 = score(doc=4294,freq=3.0), product of:
              0.08839453 = queryWeight, product of:
                1.4602089 = boost
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.014168094 = queryNorm
              0.57816213 = fieldWeight in 4294, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
          0.05196289 = weight(abstract_txt:headings in 4294) [ClassicSimilarity], result of:
            0.05196289 = score(doc=4294,freq=1.0), product of:
              0.12890744 = queryWeight, product of:
                1.7633612 = boost
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.014168094 = queryNorm
              0.40310234 = fieldWeight in 4294, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
          0.13463143 = weight(abstract_txt:chemical in 4294) [ClassicSimilarity], result of:
            0.13463143 = score(doc=4294,freq=1.0), product of:
              0.24317192 = queryWeight, product of:
                2.4219155 = boost
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.014168094 = queryNorm
              0.5536471 = fieldWeight in 4294, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
          0.8539266 = weight(abstract_txt:chemicals in 4294) [ClassicSimilarity], result of:
            0.8539266 = score(doc=4294,freq=7.0), product of:
              0.43557554 = queryWeight, product of:
                3.2414105 = boost
                9.484578 = idf(docFreq=8, maxDocs=43556)
                0.014168094 = queryNorm
              1.9604558 = fieldWeight in 4294, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                9.484578 = idf(docFreq=8, maxDocs=43556)
                0.078125 = fieldNorm(doc=4294)
        0.25 = coord(6/24)
    
  3. Abd Manaf, Z.; Abdul Rahman, R.: Examining the quality of National Library of Malaysia (NLM) cataloguing in publication (CIP) records (2006) 0.25
    0.24798322 = sum of:
      0.24798322 = product of:
        0.74394965 = sum of:
          0.017904954 = weight(abstract_txt:been in 1745) [ClassicSimilarity], result of:
            0.017904954 = score(doc=1745,freq=2.0), product of:
              0.06378559 = queryWeight, product of:
                1.2404052 = boost
                3.6295063 = idf(docFreq=3140, maxDocs=43556)
                0.014168094 = queryNorm
              0.2807053 = fieldWeight in 1745, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6295063 = idf(docFreq=3140, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.013062135 = weight(abstract_txt:online in 1745) [ClassicSimilarity], result of:
            0.013062135 = score(doc=1745,freq=1.0), product of:
              0.06512682 = queryWeight, product of:
                1.2533785 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.014168094 = queryNorm
              0.20056461 = fieldWeight in 1745, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.02835466 = weight(abstract_txt:bibliographic in 1745) [ClassicSimilarity], result of:
            0.02835466 = score(doc=1745,freq=2.0), product of:
              0.086660944 = queryWeight, product of:
                1.4458193 = boost
                4.2305613 = idf(docFreq=1721, maxDocs=43556)
                0.014168094 = queryNorm
              0.32719076 = fieldWeight in 1745, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2305613 = idf(docFreq=1721, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.029209726 = weight(abstract_txt:database in 1745) [ClassicSimilarity], result of:
            0.029209726 = score(doc=1745,freq=2.0), product of:
              0.08839453 = queryWeight, product of:
                1.4602089 = boost
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.014168094 = queryNorm
              0.3304472 = fieldWeight in 1745, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.028994502 = weight(abstract_txt:significant in 1745) [ClassicSimilarity], result of:
            0.028994502 = score(doc=1745,freq=1.0), product of:
              0.110822394 = queryWeight, product of:
                1.6349936 = boost
                4.7840977 = idf(docFreq=989, maxDocs=43556)
                0.014168094 = queryNorm
              0.26163036 = fieldWeight in 1745, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7840977 = idf(docFreq=989, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.031059643 = weight(abstract_txt:since in 1745) [ClassicSimilarity], result of:
            0.031059643 = score(doc=1745,freq=1.0), product of:
              0.11602406 = queryWeight, product of:
                1.6729244 = boost
                4.895086 = idf(docFreq=885, maxDocs=43556)
                0.014168094 = queryNorm
              0.26770002 = fieldWeight in 1745, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.895086 = idf(docFreq=885, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.17158642 = weight(abstract_txt:records in 1745) [ClassicSimilarity], result of:
            0.17158642 = score(doc=1745,freq=14.0), product of:
              0.18954238 = queryWeight, product of:
                3.023921 = boost
                4.424095 = idf(docFreq=1418, maxDocs=43556)
                0.014168094 = queryNorm
              0.90526676 = fieldWeight in 1745, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                4.424095 = idf(docFreq=1418, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
          0.42377758 = weight(abstract_txt:nlm's in 1745) [ClassicSimilarity], result of:
            0.42377758 = score(doc=1745,freq=4.0), product of:
              0.4173391 = queryWeight, product of:
                3.17283 = boost
                9.283908 = idf(docFreq=10, maxDocs=43556)
                0.014168094 = queryNorm
              1.0154275 = fieldWeight in 1745, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                9.283908 = idf(docFreq=10, maxDocs=43556)
                0.0546875 = fieldNorm(doc=1745)
        0.33333334 = coord(8/24)
    
  4. Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012) 0.23
    0.23316374 = sum of:
      0.23316374 = product of:
        0.79941857 = sum of:
          0.009476969 = weight(abstract_txt:which in 2492) [ClassicSimilarity], result of:
            0.009476969 = score(doc=2492,freq=1.0), product of:
              0.041456766 = queryWeight, product of:
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.014168094 = queryNorm
              0.22859885 = fieldWeight in 2492, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.022676582 = weight(abstract_txt:subject in 2492) [ClassicSimilarity], result of:
            0.022676582 = score(doc=2492,freq=1.0), product of:
              0.074165314 = queryWeight, product of:
                1.3375274 = boost
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.014168094 = queryNorm
              0.30575722 = fieldWeight in 2492, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.059012555 = weight(abstract_txt:database in 2492) [ClassicSimilarity], result of:
            0.059012555 = score(doc=2492,freq=4.0), product of:
              0.08839453 = queryWeight, product of:
                1.4602089 = boost
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.014168094 = queryNorm
              0.66760415 = fieldWeight in 2492, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.05196289 = weight(abstract_txt:headings in 2492) [ClassicSimilarity], result of:
            0.05196289 = score(doc=2492,freq=1.0), product of:
              0.12890744 = queryWeight, product of:
                1.7633612 = boost
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.014168094 = queryNorm
              0.40310234 = fieldWeight in 2492, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.12829356 = weight(abstract_txt:medical in 2492) [ClassicSimilarity], result of:
            0.12829356 = score(doc=2492,freq=3.0), product of:
              0.16327208 = queryWeight, product of:
                1.9845326 = boost
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.014168094 = queryNorm
              0.7857654 = fieldWeight in 2492, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.20524204 = weight(abstract_txt:medline in 2492) [ClassicSimilarity], result of:
            0.20524204 = score(doc=2492,freq=3.0), product of:
              0.22333302 = queryWeight, product of:
                2.3210194 = boost
                6.791454 = idf(docFreq=132, maxDocs=43556)
                0.014168094 = queryNorm
              0.9189955 = fieldWeight in 2492, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.791454 = idf(docFreq=132, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
          0.32275394 = weight(abstract_txt:chemicals in 2492) [ClassicSimilarity], result of:
            0.32275394 = score(doc=2492,freq=1.0), product of:
              0.43557554 = queryWeight, product of:
                3.2414105 = boost
                9.484578 = idf(docFreq=8, maxDocs=43556)
                0.014168094 = queryNorm
              0.74098265 = fieldWeight in 2492, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.484578 = idf(docFreq=8, maxDocs=43556)
                0.078125 = fieldNorm(doc=2492)
        0.29166666 = coord(7/24)
    
  5. Bronson, R.J.: MeSH chemical headings and pharmacologic action (1997) 0.22
    0.22024602 = sum of:
      0.22024602 = product of:
        0.7551292 = sum of:
          0.013267756 = weight(abstract_txt:which in 982) [ClassicSimilarity], result of:
            0.013267756 = score(doc=982,freq=1.0), product of:
              0.041456766 = queryWeight, product of:
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.014168094 = queryNorm
              0.32003838 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9260652 = idf(docFreq=6346, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.031747214 = weight(abstract_txt:subject in 982) [ClassicSimilarity], result of:
            0.031747214 = score(doc=982,freq=1.0), product of:
              0.074165314 = queryWeight, product of:
                1.3375274 = boost
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.014168094 = queryNorm
              0.4280601 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9136925 = idf(docFreq=2363, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.041308787 = weight(abstract_txt:database in 982) [ClassicSimilarity], result of:
            0.041308787 = score(doc=982,freq=1.0), product of:
              0.08839453 = queryWeight, product of:
                1.4602089 = boost
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.014168094 = queryNorm
              0.4673229 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2726665 = idf(docFreq=1650, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.07274805 = weight(abstract_txt:headings in 982) [ClassicSimilarity], result of:
            0.07274805 = score(doc=982,freq=1.0), product of:
              0.12890744 = queryWeight, product of:
                1.7633612 = boost
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.014168094 = queryNorm
              0.5643433 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.15971 = idf(docFreq=679, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.10369844 = weight(abstract_txt:medical in 982) [ClassicSimilarity], result of:
            0.10369844 = score(doc=982,freq=1.0), product of:
              0.16327208 = queryWeight, product of:
                1.9845326 = boost
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.014168094 = queryNorm
              0.6351266 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.806872 = idf(docFreq=355, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.16589518 = weight(abstract_txt:medline in 982) [ClassicSimilarity], result of:
            0.16589518 = score(doc=982,freq=1.0), product of:
              0.22333302 = queryWeight, product of:
                2.3210194 = boost
                6.791454 = idf(docFreq=132, maxDocs=43556)
                0.014168094 = queryNorm
              0.74281526 = fieldWeight in 982, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.791454 = idf(docFreq=132, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
          0.32646385 = weight(abstract_txt:chemical in 982) [ClassicSimilarity], result of:
            0.32646385 = score(doc=982,freq=3.0), product of:
              0.24317192 = queryWeight, product of:
                2.4219155 = boost
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.014168094 = queryNorm
              1.3425229 = fieldWeight in 982, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.086683 = idf(docFreq=98, maxDocs=43556)
                0.109375 = fieldNorm(doc=982)
        0.29166666 = coord(7/24)