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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 87 2482 2358 71 68 415 24482

Toru Yamada publications per year

The chart shows the history of publications by Toru Yamada between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toru Yamada published across 43 years, from 1983 to 2025, averaging 12.3 papers a year. Output peaked at 29 publications in 2010. 20 of the 528 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 29. Peak 29 publications in 2010. 1983: 1 publication 1984: 0 publications 1985: 1 publication 1986: 0 publications 1987: 1 publication 1988: 0 publications 1989: 1 publication 1990: 0 publications 1991: 2 publications 1992: 3 publications 1993: 2 publications 1994: 4 publications 1995: 4 publications 1996: 10 publications 1997: 4 publications 1998: 9 publications 1999: 13 publications 2000: 12 publications 2001: 9 publications 2002: 13 publications 2003: 18 publications 2004: 20 publications 2005: 24 publications 2006: 25 publications 2007: 20 publications 2008: 18 publications 2009: 23 publications 2010: 29 publications 2011: 21 publications 2012: 27 publications 2013: 23 publications 2014: 16 publications 2015: 26 publications 2016: 22 publications 2017: 27 publications 2018: 14 publications 2019: 25 publications 2020: 11 publications 2021: 12 publications 2022: 7 publications 2023: 11 publications 2024: 11 publications 2025: 9 publications
1983 2025

528 publications in total across all disciplines

View publications per year as a table
Toru Yamada: publications per year, 1983 to 2025
Year Publications
1983 1
1984 0
1985 1
1986 0
1987 1
1988 0
1989 1
1990 0
1991 2
1992 3
1993 2
1994 4
1995 4
1996 10
1997 4
1998 9
1999 13
2000 12
2001 9
2002 13
2003 18
2004 20
2005 24
2006 25
2007 20
2008 18
2009 23
2010 29
2011 21
2012 27
2013 23
2014 16
2015 26
2016 22
2017 27
2018 14
2019 25
2020 11
2021 12
2022 7
2023 11
2024 11
2025 9
Total 528
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Toru Yamada publications per year - data summary

  • Toru Yamada, a Physics scholar from Japan Aerospace Exploration Agency, has 528 publications recorded across 43 years, from 1983 to 2025.
  • The oldest publication on record dates to 1983 and the most recent to 2025.
  • The most productive year is 2010, with 29 publications.
  • The least productive years with any output are 1983, 1985, 1987 and 1989, with 1 publication each.
  • 4 of the 43 years in the span carry no publications at all (1984, 1986, 1988 and 1990).
  • The rate of publication averages 12.3 papers per year over the whole span, or 13.5 per year counting only the 39 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 50 publications, 9% of the career total.
  • Split into equal eras - 1983-1997: 33 publications (2.2 per year); 1998-2012: 281 publications (18.7 per year); 2013-2025: 214 publications (16.5 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Toru Yamada publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Toru Yamada sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 70 bars. Horizontal axis: publications, 103–122 to 1,469+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 323–342 publications. The last bar groups every scientist with 1,469 publications or more. The highlighted bar, 403–422 publications, is where this scientist sits. 103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103–122 publications 1,469+

This scientist: 415 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

View publications distribution as a table
Number of Physics scientists by publication count, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
Publications Scientists This scientist
103–122 7
123–142 10
143–162 31
163–182 35
183–202 53
203–222 81
223–242 85
243–262 112
263–282 114
283–302 126
303–322 136
323–342 162
343–362 155
363–382 156
383–402 134
403–422 145 415
423–442 147
443–462 131
463–482 131
483–502 116
503–522 106
523–542 103
543–562 87
563–582 84
583–602 94
603–622 70
623–642 76
643–662 60
663–682 54
683–702 60
703–722 48
723–742 64
743–762 48
763–782 37
783–802 43
803–822 34
823–842 36
843–862 32
863–882 32
883–902 31
903–922 25
923–942 15
943–962 24
963–982 13
983–1,002 21
1,003–1,022 21
1,023–1,042 16
1,043–1,062 9
1,063–1,082 19
1,083–1,102 11
1,103–1,122 17
1,123–1,142 11
1,143–1,162 7
1,163–1,182 4
1,183–1,202 10
1,203–1,222 8
1,223–1,242 16
1,243–1,262 4
1,263–1,282 10
1,283–1,302 5
1,303–1,322 7
1,323–1,342 4
1,343–1,362 8
1,363–1,382 6
1,383–1,402 7
1,403–1,422 3
1,423–1,442 4
1,443–1,462 4
1,463–1,468 3
1,469+ 100
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Toru Yamada publication distribution in Physics in 2026 - data summary

  • The chart plots the publication count of all 3,678 Physics scientists ranked by Research.com in 2026, grouped into 70 ranges running from 103–122 to 1,469+ publications.
  • Toru Yamada, a Physics scholar from Japan Aerospace Exploration Agency, records 415 publications - the 41st percentile of the discipline.
  • 41% of ranked Physics scientists score the same or lower than Toru Yamada, and about 59% score higher.
  • The median of the discipline falls in the 463–482 publications range, and Toru Yamada ranks below the median.
  • The most crowded range is 323–342 publications, holding 162 scientists (4% of the field).
  • 49% of the field sits in the lowest quarter of the value range (up to 443–462 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 1,469 publications or more, 100 scientists in all (3% of the field).

Toru Yamada D-index placement in Physics in 2026

The chart shows the D-index (discipline H-index) distribution of Physics scientists ranked by Research.com in 2026. The highlighted bar marks where Toru Yamada sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 59 bars. Horizontal axis: D-Index, 70–71 to 185+. Vertical axis: number of scientists, 0 to 167. Most scientists, 167, have 80–81 D-Index. The last bar groups every scientist with 185 D-Index or more. The highlighted bar, 86–87 D-Index, is where this scientist sits. 70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70–71 D-Index 185+

This scientist: 87 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

View D-Index distribution as a table
Number of Physics scientists by D-index, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
D-Index Scientists This scientist
70–71 76
72–73 110
74–75 143
76–77 153
78–79 144
80–81 167
82–83 167
84–85 166
86–87 132 87
88–89 155
90–91 134
92–93 137
94–95 102
96–97 112
98–99 110
100–101 116
102–103 97
104–105 103
106–107 87
108–109 90
110–111 67
112–113 78
114–115 75
116–117 67
118–119 69
120–121 60
122–123 59
124–125 53
126–127 42
128–129 41
130–131 33
132–133 32
134–135 45
136–137 19
138–139 24
140–141 28
142–143 31
144–145 22
146–147 20
148–149 12
150–151 16
152–153 24
154–155 23
156–157 15
158–159 15
160–161 11
162–163 17
164–165 12
166–167 11
168–169 9
170–171 9
172–173 11
174–175 4
176–177 8
178–179 5
180–181 3
182–183 4
184 4
185+ 99
Download as CSV

Toru Yamada D-index placement in Physics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,678 Physics scientists ranked by Research.com in 2026, grouped into 59 ranges running from 70–71 to 185+ D-Index.
  • Toru Yamada, a Physics scholar from Japan Aerospace Exploration Agency, records 87 D-Index - the 34th percentile of the discipline.
  • 34% of ranked Physics scientists score the same or lower than Toru Yamada, and about 66% score higher.
  • The median of the discipline falls in the 96–97 D-Index range, and Toru Yamada ranks below the median.
  • The most crowded range is 80–81 D-Index, holding 167 scientists (5% of the field).
  • 55% of the field sits in the lowest quarter of the value range (up to 98–99 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 185 D-Index or more, 99 scientists in all (3% of the field).

Overview

Toru Yamada is affiliated with the Japan Aerospace Exploration Agency in Japan. Their research spans two primary fields: Medicine and Physics and Astronomy, with a nearly even distribution of publications in both areas. Within these fields, Yamada has contributed extensively to several subfields including Astronomy and Astrophysics, Instrumentation, Surgery, Pulmonary and Respiratory Medicine, and Cardiology and Cardiovascular Medicine.

Their work covers a range of topics related to astronomy and medicine. In astrophysics, Yamada focuses on areas such as galaxies-covering formation, evolution, and phenomena-astronomy and astrophysical research, astrophysical phenomena and observations, gamma-ray bursts and supernovae, stellar, planetary, and galactic studies, astronomical observations and instrumentation, as well as optical imaging and spectroscopy techniques.

Yamada has published multiple papers, some of which include the following:

  • Frailty is a useful predictive marker of postoperative complications after pancreaticoduodenectomy, 2020, World Journal of Surgical Oncology
  • An AGN with an Ionized Gas Outflow in a Massive Quiescent Galaxy in a Protocluster at z = 3.09, 2022, The Astrophysical Journal
  • Highly Potent and Oral Macrocyclic Peptides as a HIV-1 Protease Inhibitor: mRNA Display-Derived Hit-to-Lead Optimization, 2022, ACS Medicinal Chemistry Letters
  • Functional near-infrared-spectroscopy-based measurement of changes in cortical activity in macaques during post-infarct recovery of manual dexterity, 2020, Scientific Reports
  • Testing an indirect method for identifying galaxies with high levels of Lyman continuum leakage, 2020, Monthly Notices of the Royal Astronomical Society

Yamada frequently publishes in venues such as The Astrophysical Journal, arXiv (Cornell University), Annals of Surgical Oncology, Repository for Publications and Research Data (ETH Zurich), and Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V.

Collaboration is a notable aspect of Yamada's research, with frequent co-authors including Yoichi Tamura, Taro Matsuo, Yuichi Matsuda, Akio Inoue, and Hideki Umehata. The repeated collaborations suggest an engaged research network within the fields of astronomy and medical science.

Best Publications

  • Statistics of 207 Lya Emitters at a Redshift Near 7: Constraints on Reionization and Galaxy Formation Models

    Masami Ouchi;Kazuhiro Shimasaku;Hisanori Furusawa;Tomoki Saito

  • The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lya Emitters from z=3.1 to 5.7 in the 1 deg^2 Field: Luminosity Functions and AGN

    Masami Ouchi;Kazuhiro Shimasaku;Masayuki Akiyama;Chris Simpson

  • STATISTICS OF 207 Lyα EMITTERS AT A REDSHIFT NEAR 7: CONSTRAINTS ON REIONIZATION AND GALAXY FORMATION MODELS*

    Masami Ouchi;Kazuhiro Shimasaku;Hisanori Furusawa;Tomoki Saito

  • The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lyα Emitters from z = 3.1 to 5.7 in the 1 deg2 Field: Luminosity Functions and AGN*

    Masami Ouchi;Kazuhiro Shimasaku;Masayuki Akiyama;Chris Simpson

  • A Subaru Search for Ly-alpha Blobs in and around the Proto-cluster Region at Redshift z=3.1

    Y. Matsuda;T. Yamada;T. Hayashino;H. Tamura

  • Implications for Cosmic Reionization from the Optical Afterglow Spectrum of the Gamma-Ray Burst 050904 at z = 6.3

    Tomonori Totani;Nobuyuki Kawai;George Kosugi;Kentaro Aoki

  • A Subaru Search for Lyα Blobs in and around the Protocluster Region At Redshift z = 3.1

    Yuichi Matsuda;Toru Yamada;Tomoki Hayashino;Hajime Tamura

  • Implications for the Cosmic Reionization from the Optical Afterglow Spectrum of the Gamma-Ray Burst 050904 at z = 6.3

    T. Totani;N. Kawai;G. Kosugi;K. Aoki

  • An optical spectrum of the afterglow of a γ-ray burst at a redshift of z = 6.295

    N. Kawai;G. Kosugi;K. Aoki;T. Yamada

  • The Subaru/XMM-Newton Deep Survey (SXDS). II. Optical Imaging and Photometric Catalogs*

    Hisanori Furusawa;George Kosugi;Masayuki Akiyama;Tadafumi Takata

  • The SUBARU Deep Field Project: Lymanα Emitters at a Redshift of 6.6

    Yoshiaki Taniguchi;Masaru Ajiki;Tohru Nagao;Tohru Nagao;Yasuhiro Shioya

  • The Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6

    M. Ouchi;K. Shimasaku;M. Akiyama;K. Sekiguchi

  • SEDS: The Spitzer Extended Deep Survey. Survey Design, Photometry, and Deep IRAC Source Counts

    M. L. N. Ashby;S. P. Willner;G. G. Fazio;J. S. Huang

  • The Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6*

    Masami Ouchi;Kazuhiro Shimasaku;Masayuki Akiyama;Kazuhiro Sekiguchi

  • The Discovery of Two Lyman α Emitters beyond Redshift 6 in the Subaru Deep Field

    Keiichi Kodaira;Yoshiaki Taniguchi;Nobunari Kashikawa;Norio Kaifu

  • Direct Imaging Discovery of a `Super-Jupiter' Around the late B-Type Star Kappa And

    J. Carson;C. Thalmann;M. Janson;T. Kozakis

  • Discovery of a Giant Lya Emitter Near the Reionization Epoch

    Masami Ouchi;Yoshiaki Ono;Eiichi Egami;Tomoki Saito

  • Large-Scale Structure of Emission-Line Galaxies at z = 3.1*

    Tomoki Hayashino;Yuichi Matsuda;Hajime Tamura;Ryosuke Yamauchi

  • Down‐sizing in galaxy formation at z∼ 1 in the Subaru/XMM–Newton Deep Survey (SXDS)

    Tadayuki Kodama;Toru Yamada;Masayuki Akiyama;Kentaro Aoki

  • A Subaru search for Lyα blobs in and around the proto-cluster region at redshift z=3.1

    Yuichi Matsuda;Toru Yamada;Tomoki Hayashino;Hajime Tamura

Frequent Co-Authors

Masayuki Akiyama
Masayuki Akiyama Tohoku University
Yuichi Matsuda
Yuichi Matsuda The Graduate University for Advanced Studies, SOKENDAI
Motohide Tamura
Motohide Tamura University of Tokyo
Masami Ouchi
Masami Ouchi University of Tokyo
Tadayuki Kodama
Tadayuki Kodama Tohoku University
Kazuhiro Shimasaku
Kazuhiro Shimasaku University of Tokyo
Hisanori Furusawa
Hisanori Furusawa National Institutes of Natural Sciences
Nobunari Kashikawa
Nobunari Kashikawa University of Tokyo
Wolfgang Brandner
Wolfgang Brandner Max Planck Society
Sadanori Okamura
Sadanori Okamura University of Tokyo

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