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Genetics
Taiwan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Genetics 80 1593 1513 3 3 253 20277

Norihiro Okada publications per year

The chart shows the history of publications by Norihiro Okada between 1978 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Norihiro Okada published across 49 years, from 1978 to 2026, averaging 6.1 papers a year. Output peaked at 21 publications in 2006. 11 of the 301 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1978 to 2026. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2006. 1978: 4 publications 1979: 2 publications 1980: 1 publication 1981: 2 publications 1982: 2 publications 1983: 3 publications 1984: 4 publications 1985: 3 publications 1986: 2 publications 1987: 2 publications 1988: 1 publication 1989: 2 publications 1990: 2 publications 1991: 7 publications 1992: 0 publications 1993: 5 publications 1994: 7 publications 1995: 4 publications 1996: 4 publications 1997: 9 publications 1998: 9 publications 1999: 4 publications 2000: 6 publications 2001: 7 publications 2002: 12 publications 2003: 13 publications 2004: 13 publications 2005: 9 publications 2006: 21 publications 2007: 16 publications 2008: 11 publications 2009: 12 publications 2010: 5 publications 2011: 5 publications 2012: 10 publications 2013: 8 publications 2014: 8 publications 2015: 7 publications 2016: 4 publications 2017: 7 publications 2018: 1 publication 2019: 3 publications 2020: 4 publications 2021: 4 publications 2022: 18 publications 2023: 4 publications 2024: 3 publications 2025: 10 publications 2026: 1 publication
1978 2026

301 publications in total across all disciplines

View publications per year as a table
Norihiro Okada: publications per year, 1978 to 2026
Year Publications
1978 4
1979 2
1980 1
1981 2
1982 2
1983 3
1984 4
1985 3
1986 2
1987 2
1988 1
1989 2
1990 2
1991 7
1992 0
1993 5
1994 7
1995 4
1996 4
1997 9
1998 9
1999 4
2000 6
2001 7
2002 12
2003 13
2004 13
2005 9
2006 21
2007 16
2008 11
2009 12
2010 5
2011 5
2012 10
2013 8
2014 8
2015 7
2016 4
2017 7
2018 1
2019 3
2020 4
2021 4
2022 18
2023 4
2024 3
2025 10
2026 1
Total 301
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Norihiro Okada publications per year - data summary

  • Norihiro Okada, a Genetics scholar from National Cheng Kung University, has 301 publications recorded across 49 years, from 1978 to 2026.
  • The oldest publication on record dates to 1978 and the most recent to 2026.
  • The most productive year is 2006, with 21 publications.
  • The least productive years with any output are 1980, 1988, 2018 and 2026, with 1 publication each.
  • 1 of the 49 years in the span carries no publications at all (1992).
  • The rate of publication averages 6.1 papers per year over the whole span, or 6.3 per year counting only the 48 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 36 publications, 12% of the career total.
  • Split into equal eras - 1978-1994: 49 publications (2.9 per year); 1995-2011: 160 publications (9.4 per year); 2012-2026: 92 publications (6.1 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Norihiro Okada publication distribution in Genetics in 2026

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

No. of scientists
50 100 150 200
Bar chart with 67 bars. Horizontal axis: publications, 45–54 to 703+. Vertical axis: number of scientists, 0 to 217. Most scientists, 217, have 125–134 publications. The last bar groups every scientist with 703 publications or more. The highlighted bar, 245–254 publications, is where this scientist sits. 45–54 publications: 6 scientists 55–64 publications: 10 scientists 65–74 publications: 35 scientists 75–84 publications: 84 scientists 85–94 publications: 102 scientists 95–104 publications: 151 scientists 105–114 publications: 175 scientists 115–124 publications: 203 scientists 125–134 publications: 217 scientists 135–144 publications: 205 scientists 145–154 publications: 193 scientists 155–164 publications: 188 scientists 165–174 publications: 170 scientists 175–184 publications: 178 scientists 185–194 publications: 164 scientists 195–204 publications: 173 scientists 205–214 publications: 159 scientists 215–224 publications: 134 scientists 225–234 publications: 143 scientists 235–244 publications: 105 scientists 245–254 publications: 114 scientists 255–264 publications: 92 scientists 265–274 publications: 88 scientists 275–284 publications: 87 scientists 285–294 publications: 80 scientists 295–304 publications: 62 scientists 305–314 publications: 75 scientists 315–324 publications: 67 scientists 325–334 publications: 60 scientists 335–344 publications: 52 scientists 345–354 publications: 40 scientists 355–364 publications: 48 scientists 365–374 publications: 47 scientists 375–384 publications: 46 scientists 385–394 publications: 31 scientists 395–404 publications: 27 scientists 405–414 publications: 40 scientists 415–424 publications: 30 scientists 425–434 publications: 43 scientists 435–444 publications: 29 scientists 445–454 publications: 14 scientists 455–464 publications: 28 scientists 465–474 publications: 21 scientists 475–484 publications: 21 scientists 485–494 publications: 22 scientists 495–504 publications: 17 scientists 505–514 publications: 12 scientists 515–524 publications: 11 scientists 525–534 publications: 8 scientists 535–544 publications: 8 scientists 545–554 publications: 14 scientists 555–564 publications: 4 scientists 565–574 publications: 11 scientists 575–584 publications: 5 scientists 585–594 publications: 11 scientists 595–604 publications: 12 scientists 605–614 publications: 7 scientists 615–624 publications: 6 scientists 625–634 publications: 10 scientists 635–644 publications: 9 scientists 645–654 publications: 10 scientists 655–664 publications: 6 scientists 665–674 publications: 6 scientists 675–684 publications: 6 scientists 685–694 publications: 4 scientists 695–702 publications: 6 scientists 703+ publications: 100 scientists
45–54 publications 703+

This scientist: 253 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 703 publications or more.

View publications distribution as a table
Number of Genetics scientists by publication count, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
Publications Scientists This scientist
45–54 6
55–64 10
65–74 35
75–84 84
85–94 102
95–104 151
105–114 175
115–124 203
125–134 217
135–144 205
145–154 193
155–164 188
165–174 170
175–184 178
185–194 164
195–204 173
205–214 159
215–224 134
225–234 143
235–244 105
245–254 114 253
255–264 92
265–274 88
275–284 87
285–294 80
295–304 62
305–314 75
315–324 67
325–334 60
335–344 52
345–354 40
355–364 48
365–374 47
375–384 46
385–394 31
395–404 27
405–414 40
415–424 30
425–434 43
435–444 29
445–454 14
455–464 28
465–474 21
475–484 21
485–494 22
495–504 17
505–514 12
515–524 11
525–534 8
535–544 8
545–554 14
555–564 4
565–574 11
575–584 5
585–594 11
595–604 12
605–614 7
615–624 6
625–634 10
635–644 9
645–654 10
655–664 6
665–674 6
675–684 6
685–694 4
695–702 6
703+ 100
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Norihiro Okada publication distribution in Genetics in 2026 - data summary

  • The chart plots the publication count of all 4,342 Genetics scientists ranked by Research.com in 2026, grouped into 67 ranges running from 45–54 to 703+ publications.
  • Norihiro Okada, a Genetics scholar from National Cheng Kung University, records 253 publications - the 67th percentile of the discipline.
  • 67% of ranked Genetics scientists score the same or lower than Norihiro Okada, and about 33% score higher.
  • The median of the discipline falls in the 195–204 publications range, and Norihiro Okada ranks above the median.
  • The most crowded range is 125–134 publications, holding 217 scientists (5% of the field).
  • 56% of the field sits in the lowest quarter of the value range (up to 205–214 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 703 publications or more, 100 scientists in all (2% of the field).

Norihiro Okada D-index placement in Genetics in 2026

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

No. of scientists
50 100 150
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 160+. Vertical axis: number of scientists, 0 to 191. Most scientists, 191, have 62–63 D-Index. The last bar groups every scientist with 160 D-Index or more. The highlighted bar, 80–81 D-Index, is where this scientist sits. 40–41 D-Index: 24 scientists 42–43 D-Index: 52 scientists 44–45 D-Index: 84 scientists 46–47 D-Index: 112 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 141 scientists 52–53 D-Index: 143 scientists 54–55 D-Index: 145 scientists 56–57 D-Index: 179 scientists 58–59 D-Index: 162 scientists 60–61 D-Index: 175 scientists 62–63 D-Index: 191 scientists 64–65 D-Index: 172 scientists 66–67 D-Index: 184 scientists 68–69 D-Index: 164 scientists 70–71 D-Index: 158 scientists 72–73 D-Index: 150 scientists 74–75 D-Index: 136 scientists 76–77 D-Index: 127 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 111 scientists 82–83 D-Index: 110 scientists 84–85 D-Index: 110 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 102 scientists 90–91 D-Index: 66 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 70 scientists 96–97 D-Index: 54 scientists 98–99 D-Index: 60 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 55 scientists 104–105 D-Index: 45 scientists 106–107 D-Index: 42 scientists 108–109 D-Index: 28 scientists 110–111 D-Index: 39 scientists 112–113 D-Index: 25 scientists 114–115 D-Index: 31 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 34 scientists 120–121 D-Index: 29 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 27 scientists 128–129 D-Index: 22 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 11 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 21 scientists 140–141 D-Index: 4 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 14 scientists 146–147 D-Index: 6 scientists 148–149 D-Index: 10 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 9 scientists 154–155 D-Index: 8 scientists 156–157 D-Index: 8 scientists 158–159 D-Index: 9 scientists 160+ D-Index: 96 scientists
40–41 D-Index 160+

This scientist: 80 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 160 D-Index or more.

View D-Index distribution as a table
Number of Genetics scientists by D-index, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
D-Index Scientists This scientist
40–41 24
42–43 52
44–45 84
46–47 112
48–49 118
50–51 141
52–53 143
54–55 145
56–57 179
58–59 162
60–61 175
62–63 191
64–65 172
66–67 184
68–69 164
70–71 158
72–73 150
74–75 136
76–77 127
78–79 127
80–81 111 80
82–83 110
84–85 110
86–87 84
88–89 102
90–91 66
92–93 72
94–95 70
96–97 54
98–99 60
100–101 49
102–103 55
104–105 45
106–107 42
108–109 28
110–111 39
112–113 25
114–115 31
116–117 29
118–119 34
120–121 29
122–123 29
124–125 18
126–127 27
128–129 22
130–131 16
132–133 11
134–135 17
136–137 12
138–139 21
140–141 4
142–143 9
144–145 14
146–147 6
148–149 10
150–151 7
152–153 9
154–155 8
156–157 8
158–159 9
160+ 96
Download as CSV

Norihiro Okada D-index placement in Genetics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 4,342 Genetics scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 160+ D-Index.
  • Norihiro Okada, a Genetics scholar from National Cheng Kung University, records 80 D-Index - the 64th percentile of the discipline.
  • 64% of ranked Genetics scientists score the same or lower than Norihiro Okada, and about 36% score higher.
  • The median of the discipline falls in the 70–71 D-Index range, and Norihiro Okada ranks above the median.
  • The most crowded range is 62–63 D-Index, holding 191 scientists (4% of the field).
  • 51% of the field sits in the lowest quarter of the value range (up to 70–71 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 160 D-Index or more, 96 scientists in all (2% of the field).

Research.com Recognitions

  • 2026 - Research.com Genetics in Taiwan Leader Award
  • 2025 - Research.com Genetics in Taiwan Leader Award
  • 2024 - Research.com Genetics in Taiwan Leader Award
  • 2023 - Research.com Genetics in Taiwan Leader Award
  • 2000 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Norihiro Okada is a researcher affiliated with National Cheng Kung University in Taiwan, specializing in Medicine with a focus on several subfields including Molecular Biology, Hematology, Cardiology and Cardiovascular Medicine, Ecology, and Ecology, Evolution, Behavior and Systematics.

Okada's work encompasses a diverse range of topics within biomedical and ecological sciences. The primary themes in their research include RNA Research and Splicing, Tryptophan and brain disorders, Physiological and biochemical adaptations, Hemophilia Treatment and Research, Animal Behavior and Reproduction, Adipose Tissue and Metabolism, and Neuroinflammation and Neurodegeneration Mechanisms.

Their recent notable publications are as follows:

  • Catheter ablation of atrial fibrillation reduces heart failure rehospitalization in patients with heart failure with preserved ejection fraction, 2020, Journal of Cardiovascular Electrophysiology
  • Behavioral and brain- transcriptomic synchronization between the two opponents of a fighting pair of the fish Betta splendens, 2020, PLoS Genetics
  • Long-term safety and efficacy of emicizumab for up to 5.8 years and patients' perceptions of symptoms and daily life: A phase 1/2 study in patients with severe haemophilia A, 2020, Haemophilia
  • Vascular imaging of patients with refractory Takayasu arteritis treated with tocilizumab: post hoc analysis of a randomized controlled trial, 2021, Lara D. Veeken
  • Genomic Signatures for Species-Specific Adaptation in Lake Victoria Cichlids Derived from Large-Scale Standing Genetic Variation, 2021, Molecular Biology and Evolution

Frequent co-authors collaborating with Okada include:

  • Kenshiro Oshima (17 collaborations)
  • Akiko Maruko (12 collaborations)
  • Trieu-Duc Vu (11 collaborations)
  • Yuki Iwasaki (10 collaborations)
  • Masato Nikaido (7 collaborations)

Okada's publications frequently appear in the following venues:

  • Gene (4 publications)
  • bioRxiv (Cold Spring Harbor Laboratory) (4 publications)
  • BMC Genomics (2 publications)
  • Data in Brief (2 publications)
  • Blood (2 publications)

Okada has been recognized as a Fellow of the American Association for the Advancement of Science (AAAS) since 2000.

Best Publications

  • The genomic substrate for adaptive radiation in African cichlid fish

    David Brawand;David Brawand;Catherine E. Wagner;Catherine E. Wagner;Yang I. Li;Milan Malinsky;Milan Malinsky

  • Phylogenetic relationships among cetartiodactyls based on insertions of short and long interpersed elements: hippopotamuses are the closest extant relatives of whales.

    Masato Nikaido;Alejandro P. Rooney;Norihiro Okada

  • SINE insertions: powerful tools for molecular systematics.

    Andrew M. Shedlock;Norihiro Okada

  • Integrative Annotation of 21,037 Human Genes Validated by Full-Length cDNA Clones

    Tadashi Imanishi;Takeshi Itoh;Yutaka Suzuki;Claire O'Donovan

  • Towards Resolving the Interordinal Relationships of Placental Mammals

    Peter J. Waddell;Norihiro Okada;Masami Hasegawa

  • LINEs Mobilize SINEs in the Eel through a Shared 3′ Sequence

    Masaki Kajikawa;Norihiro Okada

  • SINEs and LINEs Share Common 3' Sequences: A Review

    Norihiro Okada;Mitsuhiro Hamada;Ikuo Ogiwara;Kazuhiko Ohshima

  • Pegasoferae, an unexpected mammalian clade revealed by tracking ancient retroposon insertions.

    Hidenori Nishihara;Masami Hasegawa;Norihiro Okada

  • Retroposon analysis of major cetacean lineages : the monophyly of toothed whales and the paraphyly of river dolphins

    Masato Nikaido;Fumio Matsuno;Healy Hamilton;Robert L. Brownell

  • Functional noncoding sequences derived from SINEs in the mammalian genome

    Hidenori Nishihara;Arian F.A. Smit;Norihiro Okada

  • Conflict among individual mitochondrial proteins in resolving the phylogeny of eutherian orders.

    Ying Cao;Axel Janke;Peter J. Waddell;Michael Westerman

  • Phylogenetic Relationships and Ancient Incomplete Lineage Sorting Among Cichlid Fishes in Lake Tanganyika as Revealed by Analysis of the Insertion of Retroposons

    Kazuhiko Takahashi;Yohey Terai;Mutsumi Nishida;Norihiro Okada

  • Determination of the phylogenetic relationships among Pacific salmonids by using short interspersed elements (SINEs) as temporal landmarks of evolution

    Shigenori Murata;Nobuyoshi Takasaki;Masako Saitoh;Norihiro Okada

  • Divergent Selection on Opsins Drives Incipient Speciation in Lake Victoria Cichlids

    Yohey Terai;Ole Seehausen;Takeshi N. Sasaki;Kazuhiko Takahashi

  • Alternative Tertiary Structure of tRNA for Recognition by a Posttranscriptional Modification Enzyme

    Ryuichiro Ishitani;Osamu Nureki;Nobukazu Nameki;Norihiro Okada

  • The 3' ends of tRNA-derived short interspersed repetitive elements are derived from the 3' ends of long interspersed repetitive elements.

    K Ohshima;M Hamada;Y Terai;N Okada

  • Development of the embryo, larva and early juvenile of Nile tilapia Oreochromis niloticus (Pisces: Cichlidae). Developmental staging system

    Koji Fujimura;Norihiro Okada

  • SINEs of speciation: tracking lineages with retroposons

    Andrew M. Shedlock;Kazuhiko Takahashi;Norihiro Okada;Norihiro Okada

  • Seasonal change in bacterial flora and biomass in mountain snow from the Tateyama Mountains, Japan, analyzed by 16S rRNA gene sequencing and real-time PCR.

    Takahiro Segawa;Koji Miyamoto;Kazunari Ushida;Kiyokazu Agata

  • Possible involvement of SINEs in mammalian-specific brain formation

    Takeshi Sasaki;Hidenori Nishihara;Mika Hirakawa;Koji Fujimura

Frequent Co-Authors

Masami Hasegawa
Masami Hasegawa The Institute of Statistical Mathematics
Susumu Nishimura
Susumu Nishimura University of Tsukuba
Ole Seehausen
Ole Seehausen University of Bern
Takashi Gojobori
Takashi Gojobori King Abdullah University of Science and Technology
Naoki Kobayashi
Naoki Kobayashi University of Tokyo
Mutsumi Nishida
Mutsumi Nishida University of the Ryukyus
Yuji Kohara
Yuji Kohara National Institute of Genetics
Asao Fujiyama
Asao Fujiyama National Institute of Genetics
Kerstin Lindblad-Toh
Kerstin Lindblad-Toh Uppsala University
Sumio Sugano
Sumio Sugano University of Tokyo

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