Document (#30271)

Author

Asonuma, A.
Fang, Y.
Rousseau, R.

Title

Reflections on the age distribution of Japanese scientists

Source

Journal of the American Society for Information Science and Technology. 57(2006) no.3, S.342-346

Year

2006

Abstract

The age distribution of a country's scientists is an important element in the study of its research capacity. In this article we investigate the age distribution of Japanese scientists in order to find out whether major events such as World War II had an appreciable effect on its features. Data have been obtained from population censuses taken in Japan from 1970 to 1995. A comparison with the situation in China and the United States has been made. We find that the group of scientific researchers outside academia is dominated by the young: those younger than age 35. The personnel group in higher education, on the other hand, is dominated by the baby boomers: those who were born after World War II. Contrary to the Chinese situation we could not find any influence of major nondemographic events. The only influence we found was the increase in enrollment of university students after World War II caused by the reform of the Japanese university system. Female participation in the scientific and university systems in Japan, though still low, is increasing.

Theme

Informetrie

Location

Japan

Similar documents (author)

1. Fang, L.: ¬A developing search service : heterogeneous resources integration and retrieval system (2004) 2.04

   2.0356975 = sum of:
     2.0356975 = product of:
       4.071395 = sum of:
         4.071395 = weight(author_txt:fang in 2193) [ClassicSimilarity], result of:
           4.071395 = score(doc=2193,freq=1.0), product of:
             0.77498424 = queryWeight, product of:
               1.1073747 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.08325838 = queryNorm
             5.2535195 = fieldWeight in 2193, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.625 = fieldNorm(doc=2193)
       0.5 = coord(1/2)
   

2. Fang, H.: Classifying research articles in multidisciplinary sciences journals into subject categories (2015) 2.04

   2.0356975 = sum of:
     2.0356975 = product of:
       4.071395 = sum of:
         4.071395 = weight(author_txt:fang in 3194) [ClassicSimilarity], result of:
           4.071395 = score(doc=3194,freq=1.0), product of:
             0.77498424 = queryWeight, product of:
               1.1073747 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.08325838 = queryNorm
             5.2535195 = fieldWeight in 3194, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.625 = fieldNorm(doc=3194)
       0.5 = coord(1/2)
   

3. Fang, H.: ¬A discussion of citations from the perspective of the contribution of the cited paper to the citing paper (2018) 2.04

   2.0356975 = sum of:
     2.0356975 = product of:
       4.071395 = sum of:
         4.071395 = weight(author_txt:fang in 453) [ClassicSimilarity], result of:
           4.071395 = score(doc=453,freq=1.0), product of:
             0.77498424 = queryWeight, product of:
               1.1073747 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.08325838 = queryNorm
             5.2535195 = fieldWeight in 453, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.625 = fieldNorm(doc=453)
       0.5 = coord(1/2)
   

4. Rousseau, S.; Rousseau, R.: Metric-wiseness (2015) 1.70

   1.6960336 = sum of:
     1.6960336 = product of:
       3.3920672 = sum of:
         3.3920672 = weight(author_txt:rousseau in 69) [ClassicSimilarity], result of:
           3.3920672 = score(doc=69,freq=2.0), product of:
             0.63198054 = queryWeight, product of:
               7.590594 = idf(docFreq=60, maxDocs=44421)
               0.08325838 = queryNorm
             5.36736 = fieldWeight in 69, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.590594 = idf(docFreq=60, maxDocs=44421)
               0.5 = fieldNorm(doc=69)
       0.5 = coord(1/2)
   

5. Rousseau, S.; Rousseau, R.: Interactions between journal attributes and authors' willingness to wait for editorial decisions (2012) 1.70

   1.6960336 = sum of:
     1.6960336 = product of:
       3.3920672 = sum of:
         3.3920672 = weight(author_txt:rousseau in 1250) [ClassicSimilarity], result of:
           3.3920672 = score(doc=1250,freq=2.0), product of:
             0.63198054 = queryWeight, product of:
               7.590594 = idf(docFreq=60, maxDocs=44421)
               0.08325838 = queryNorm
             5.36736 = fieldWeight in 1250, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.590594 = idf(docFreq=60, maxDocs=44421)
               0.5 = fieldNorm(doc=1250)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Jin, B.; Li, L.; Rousseau, R.: Long-term influences of interventions in the normal development of science : China and the cultural revolution (2004) 0.14

   0.13779366 = sum of:
     0.13779366 = product of:
       0.4921202 = sum of:
         0.103492774 = weight(abstract_txt:country's in 3232) [ClassicSimilarity], result of:
           0.103492774 = score(doc=3232,freq=1.0), product of:
             0.18909204 = queryWeight, product of:
               1.1326904 = boost
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.019063614 = queryNorm
             0.5473143 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.757029 = idf(docFreq=18, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.053071454 = weight(abstract_txt:scientific in 3232) [ClassicSimilarity], result of:
           0.053071454 = score(doc=3232,freq=3.0), product of:
             0.10583032 = queryWeight, product of:
               1.1983802 = boost
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.019063614 = queryNorm
             0.5014768 = fieldWeight in 3232, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.031139389 = weight(abstract_txt:major in 3232) [ClassicSimilarity], result of:
           0.031139389 = score(doc=3232,freq=1.0), product of:
             0.10697524 = queryWeight, product of:
               1.2048452 = boost
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.019063614 = queryNorm
             0.29108968 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.055994663 = weight(abstract_txt:situation in 3232) [ClassicSimilarity], result of:
           0.055994663 = score(doc=3232,freq=1.0), product of:
             0.15818828 = queryWeight, product of:
               1.465132 = boost
               5.6635966 = idf(docFreq=418, maxDocs=44421)
               0.019063614 = queryNorm
             0.3539748 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6635966 = idf(docFreq=418, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.07605244 = weight(abstract_txt:events in 3232) [ClassicSimilarity], result of:
           0.07605244 = score(doc=3232,freq=1.0), product of:
             0.19400756 = queryWeight, product of:
               1.6225531 = boost
               6.272122 = idf(docFreq=227, maxDocs=44421)
               0.019063614 = queryNorm
             0.39200762 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.272122 = idf(docFreq=227, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.08104964 = weight(abstract_txt:distribution in 3232) [ClassicSimilarity], result of:
           0.08104964 = score(doc=3232,freq=1.0), product of:
             0.231708 = queryWeight, product of:
               2.1717296 = boost
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.019063614 = queryNorm
             0.34979215 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
         0.091319814 = weight(abstract_txt:scientists in 3232) [ClassicSimilarity], result of:
           0.091319814 = score(doc=3232,freq=1.0), product of:
             0.25089017 = queryWeight, product of:
               2.2598367 = boost
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.019063614 = queryNorm
             0.36398324 = fieldWeight in 3232, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.0625 = fieldNorm(doc=3232)
       0.28 = coord(7/25)
   

2. McIlwaine, I.C.: Brian Vickery : 11th September 1918-17 th October 2009 (2010) 0.13

   0.12664218 = sum of:
     0.12664218 = product of:
       0.45229352 = sum of:
         0.10748657 = weight(abstract_txt:born in 679) [ClassicSimilarity], result of:
           0.10748657 = score(doc=679,freq=1.0), product of:
             0.19392599 = queryWeight, product of:
               1.1470771 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.019063614 = queryNorm
             0.5542659 = fieldWeight in 679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.030640816 = weight(abstract_txt:scientific in 679) [ClassicSimilarity], result of:
           0.030640816 = score(doc=679,freq=1.0), product of:
             0.10583032 = queryWeight, product of:
               1.1983802 = boost
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.019063614 = queryNorm
             0.28952777 = fieldWeight in 679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6324444 = idf(docFreq=1174, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.062056307 = weight(abstract_txt:group in 679) [ClassicSimilarity], result of:
           0.062056307 = score(doc=679,freq=3.0), product of:
             0.11746093 = queryWeight, product of:
               1.2625144 = boost
               4.88036 = idf(docFreq=916, maxDocs=44421)
               0.019063614 = queryNorm
             0.5283145 = fieldWeight in 679, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.88036 = idf(docFreq=916, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.044071294 = weight(abstract_txt:influence in 679) [ClassicSimilarity], result of:
           0.044071294 = score(doc=679,freq=1.0), product of:
             0.1348488 = queryWeight, product of:
               1.3527364 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.019063614 = queryNorm
             0.32682008 = fieldWeight in 679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.07660564 = weight(abstract_txt:after in 679) [ClassicSimilarity], result of:
           0.07660564 = score(doc=679,freq=3.0), product of:
             0.13516885 = queryWeight, product of:
               1.3543407 = boost
               5.235323 = idf(docFreq=642, maxDocs=44421)
               0.019063614 = queryNorm
             0.56674033 = fieldWeight in 679, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.235323 = idf(docFreq=642, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.04011308 = weight(abstract_txt:world in 679) [ClassicSimilarity], result of:
           0.04011308 = score(doc=679,freq=1.0), product of:
             0.14497651 = queryWeight, product of:
               1.7178453 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.019063614 = queryNorm
             0.27668676 = fieldWeight in 679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
         0.091319814 = weight(abstract_txt:scientists in 679) [ClassicSimilarity], result of:
           0.091319814 = score(doc=679,freq=1.0), product of:
             0.25089017 = queryWeight, product of:
               2.2598367 = boost
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.019063614 = queryNorm
             0.36398324 = fieldWeight in 679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.0625 = fieldNorm(doc=679)
       0.28 = coord(7/25)
   

3. Peters, B.: ¬The search engine democracy : metaphors and Muhammad (2007) 0.11

   0.10935455 = sum of:
     0.10935455 = product of:
       0.34173298 = sum of:
         0.018492945 = weight(abstract_txt:those in 1384) [ClassicSimilarity], result of:
           0.018492945 = score(doc=1384,freq=1.0), product of:
             0.09156013 = queryWeight, product of:
               1.114661 = boost
               4.3088202 = idf(docFreq=1623, maxDocs=44421)
               0.019063614 = queryNorm
             0.20197594 = fieldWeight in 1384, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3088202 = idf(docFreq=1623, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.03302831 = weight(abstract_txt:major in 1384) [ClassicSimilarity], result of:
           0.03302831 = score(doc=1384,freq=2.0), product of:
             0.10697524 = queryWeight, product of:
               1.2048452 = boost
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.019063614 = queryNorm
             0.30874723 = fieldWeight in 1384, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.046744667 = weight(abstract_txt:influence in 1384) [ClassicSimilarity], result of:
           0.046744667 = score(doc=1384,freq=2.0), product of:
             0.1348488 = queryWeight, product of:
               1.3527364 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.019063614 = queryNorm
             0.34664503 = fieldWeight in 1384, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.033171214 = weight(abstract_txt:after in 1384) [ClassicSimilarity], result of:
           0.033171214 = score(doc=1384,freq=1.0), product of:
             0.13516885 = queryWeight, product of:
               1.3543407 = boost
               5.235323 = idf(docFreq=642, maxDocs=44421)
               0.019063614 = queryNorm
             0.24540576 = fieldWeight in 1384, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.235323 = idf(docFreq=642, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.05703933 = weight(abstract_txt:events in 1384) [ClassicSimilarity], result of:
           0.05703933 = score(doc=1384,freq=1.0), product of:
             0.19400756 = queryWeight, product of:
               1.6225531 = boost
               6.272122 = idf(docFreq=227, maxDocs=44421)
               0.019063614 = queryNorm
             0.29400572 = fieldWeight in 1384, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.272122 = idf(docFreq=227, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.05210842 = weight(abstract_txt:world in 1384) [ClassicSimilarity], result of:
           0.05210842 = score(doc=1384,freq=3.0), product of:
             0.14497651 = queryWeight, product of:
               1.7178453 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.019063614 = queryNorm
             0.35942662 = fieldWeight in 1384, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.04036088 = weight(abstract_txt:find in 1384) [ClassicSimilarity], result of:
           0.04036088 = score(doc=1384,freq=1.0), product of:
             0.17634909 = queryWeight, product of:
               1.8946187 = boost
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.019063614 = queryNorm
             0.22886923 = fieldWeight in 1384, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
         0.060787234 = weight(abstract_txt:distribution in 1384) [ClassicSimilarity], result of:
           0.060787234 = score(doc=1384,freq=1.0), product of:
             0.231708 = queryWeight, product of:
               2.1717296 = boost
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.019063614 = queryNorm
             0.26234412 = fieldWeight in 1384, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.046875 = fieldNorm(doc=1384)
       0.32 = coord(8/25)
   

4. Taniguchi, S.: Current status of cataloging and classification education in Japan (2005) 0.11

   0.10821399 = sum of:
     0.10821399 = product of:
       0.6763375 = sum of:
         0.046709087 = weight(abstract_txt:major in 752) [ClassicSimilarity], result of:
           0.046709087 = score(doc=752,freq=1.0), product of:
             0.10697524 = queryWeight, product of:
               1.2048452 = boost
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.019063614 = queryNorm
             0.43663454 = fieldWeight in 752, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.657435 = idf(docFreq=1145, maxDocs=44421)
               0.09375 = fieldNorm(doc=752)
         0.11878262 = weight(abstract_txt:situation in 752) [ClassicSimilarity], result of:
           0.11878262 = score(doc=752,freq=2.0), product of:
             0.15818828 = queryWeight, product of:
               1.465132 = boost
               5.6635966 = idf(docFreq=418, maxDocs=44421)
               0.019063614 = queryNorm
             0.7508939 = fieldWeight in 752, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6635966 = idf(docFreq=418, maxDocs=44421)
               0.09375 = fieldNorm(doc=752)
         0.20352712 = weight(abstract_txt:japan in 752) [ClassicSimilarity], result of:
           0.20352712 = score(doc=752,freq=1.0), product of:
             0.28538463 = queryWeight, product of:
               1.9679084 = boost
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.019063614 = queryNorm
             0.7131678 = fieldWeight in 752, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.09375 = fieldNorm(doc=752)
         0.30731863 = weight(abstract_txt:japanese in 752) [ClassicSimilarity], result of:
           0.30731863 = score(doc=752,freq=1.0), product of:
             0.42997056 = queryWeight, product of:
               2.9583843 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.019063614 = queryNorm
             0.71474344 = fieldWeight in 752, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.09375 = fieldNorm(doc=752)
       0.16 = coord(4/25)
   

5. Kohlbacher, F.: Knowledge organization(s) in Japan : empirical evidence from Japanese and western corporations (2006) 0.11

   0.10813834 = sum of:
     0.10813834 = product of:
       0.67586464 = sum of:
         0.055089124 = weight(abstract_txt:influence in 3523) [ClassicSimilarity], result of:
           0.055089124 = score(doc=3523,freq=1.0), product of:
             0.1348488 = queryWeight, product of:
               1.3527364 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.019063614 = queryNorm
             0.4085251 = fieldWeight in 3523, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.078125 = fieldNorm(doc=3523)
         0.07091057 = weight(abstract_txt:world in 3523) [ClassicSimilarity], result of:
           0.07091057 = score(doc=3523,freq=2.0), product of:
             0.14497651 = queryWeight, product of:
               1.7178453 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.019063614 = queryNorm
             0.48911768 = fieldWeight in 3523, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.078125 = fieldNorm(doc=3523)
         0.29376608 = weight(abstract_txt:japan in 3523) [ClassicSimilarity], result of:
           0.29376608 = score(doc=3523,freq=3.0), product of:
             0.28538463 = queryWeight, product of:
               1.9679084 = boost
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.019063614 = queryNorm
             1.029369 = fieldWeight in 3523, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.078125 = fieldNorm(doc=3523)
         0.25609887 = weight(abstract_txt:japanese in 3523) [ClassicSimilarity], result of:
           0.25609887 = score(doc=3523,freq=1.0), product of:
             0.42997056 = queryWeight, product of:
               2.9583843 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.019063614 = queryNorm
             0.59561956 = fieldWeight in 3523, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.078125 = fieldNorm(doc=3523)
       0.16 = coord(4/25)