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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Genetics 70 2288 2174 1025 963 192 15102

Larry Simpson publications per year

The chart shows the history of publications by Larry Simpson between 1963 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Larry Simpson published across 63 years, from 1963 to 2025, averaging 3.6 papers a year. Output peaked at 10 publications in 1989. 2 of the 225 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1963 to 2025. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 1989. 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 1 publication 1967: 0 publications 1968: 3 publications 1969: 0 publications 1970: 1 publication 1971: 1 publication 1972: 1 publication 1973: 5 publications 1974: 5 publications 1975: 1 publication 1976: 1 publication 1977: 1 publication 1978: 3 publications 1979: 4 publications 1980: 4 publications 1981: 0 publications 1982: 5 publications 1983: 2 publications 1984: 4 publications 1985: 6 publications 1986: 4 publications 1987: 3 publications 1988: 8 publications 1989: 10 publications 1990: 6 publications 1991: 6 publications 1992: 8 publications 1993: 3 publications 1994: 10 publications 1995: 9 publications 1996: 10 publications 1997: 7 publications 1998: 7 publications 1999: 10 publications 2000: 3 publications 2001: 9 publications 2002: 9 publications 2003: 8 publications 2004: 8 publications 2005: 4 publications 2006: 4 publications 2007: 4 publications 2008: 2 publications 2009: 9 publications 2010: 2 publications 2011: 3 publications 2012: 1 publication 2013: 0 publications 2014: 0 publications 2015: 3 publications 2016: 1 publication 2017: 0 publications 2018: 1 publication 2019: 1 publication 2020: 1 publication 2021: 0 publications 2022: 0 publications 2023: 0 publications 2024: 0 publications 2025: 2 publications
1963 2025

225 publications in total across all disciplines

View publications per year as a table
Larry Simpson: publications per year, 1963 to 2025
Year Publications
1963 1
1964 0
1965 0
1966 1
1967 0
1968 3
1969 0
1970 1
1971 1
1972 1
1973 5
1974 5
1975 1
1976 1
1977 1
1978 3
1979 4
1980 4
1981 0
1982 5
1983 2
1984 4
1985 6
1986 4
1987 3
1988 8
1989 10
1990 6
1991 6
1992 8
1993 3
1994 10
1995 9
1996 10
1997 7
1998 7
1999 10
2000 3
2001 9
2002 9
2003 8
2004 8
2005 4
2006 4
2007 4
2008 2
2009 9
2010 2
2011 3
2012 1
2013 0
2014 0
2015 3
2016 1
2017 0
2018 1
2019 1
2020 1
2021 0
2022 0
2023 0
2024 0
2025 2
Total 225
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Larry Simpson 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 Larry Simpson 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, 185–194 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: 192 publications — 47th percentile

47% 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
185–194 164 192
195–204 173
205–214 159
215–224 134
225–234 143
235–244 105
245–254 114
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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Larry Simpson 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 Larry Simpson 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, 70–71 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: 70 D-Index — 49th percentile

49% 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 70
72–73 150
74–75 136
76–77 127
78–79 127
80–81 111
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
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Research.com Recognitions

  • 2012 - Fellow of the American Academy of Arts and Sciences

Overview

Larry Simpson is affiliated with the University of California, Los Angeles in the United States. Their research spans several fields including Biochemistry, Genetics and Molecular Biology, Medicine, and Agricultural and Biological Sciences. Within these main fields, the focus extends to subfields such as Molecular Biology, Organic Chemistry, Plant Science, Epidemiology, and Ecology, Evolution, Behavior and Systematics.

The scientist's work covers multiple topics, including:

  • Cancer therapeutics and mechanisms
  • Biochemical and Molecular Research
  • Trypanosoma species research and implications
  • RNA modifications and cancer
  • RNA and protein synthesis mechanisms
  • Synthesis of β-Lactam Compounds
  • Synthesis and biological activity

Their recent publications include the following papers:

  • Lexis and Grammar of Mitochondrial RNA Processing in Trypanosomes (2020) published in Trends in Parasitology
  • Mutagenesis of Intrinsically Disordered Domain Impacts Topoisomerase II⍺ Catalytic Activity (2025) published in Preprints.org
  • Liparis barbata Lindl. (Orchidaceae) - new to the flora of Australia (2021) published in Austrobaileya A Journal of Plant Systematics
  • Proteomics and electron microscopic characterization of the unusual mitochondrial ribosome-related 45S complex in Leishmania tarentolae (2020) published in UNC Libraries
  • Mutagenesis of Intrinsically Disordered Domain Impacts Topoisomerase IIα Catalytic Activity (2025) published in International Journal of Molecular Sciences

Frequent publication venues include:

  • Trends in Parasitology
  • Preprints.org
  • Austrobaileya A Journal of Plant Systematics
  • UNC Libraries
  • International Journal of Molecular Sciences

The scientist has collaborated regularly with several researchers, including:

  • Dmitri Maslov
  • Justin Chang
  • Addison K O'Brian
  • Aline Thomas
  • Mattalyn R. Hardin

Larry Simpson was recognized as a Fellow of the American Academy of Arts and Sciences in 2012.

Best Publications

  • A model for RNA editing in kinetoplastid mitochondria: "guide" RNA molecules transcribed from maxicircle DNA provide the edited information.

    Beat Blum;Norbert Bakalara;Larry Simpson

  • Strains and clones of Trypanosoma cruzi can be characterized by pattern of restriction endonuclease products of kinetoplast DNA minicircles.

    C Morel;E Chiari;E P Camargo;D M Mattei

  • The Mitochondrial Genome of Kinetoplastid Protozoa: Genomic Organization, Transcription, Replication, and Evolution

    Larry Simpson

  • Sensitive detection and schizodeme classification of Trypanosoma cruzi cells by amplification of kinetoplast minicircle DNA sequences: use in diagnosis of Chagas' disease

    Nancy R. Sturm;Wim Degrave;Carlos Morel;Larry Simpson

  • Polymerase chain reaction amplification of Trypanosoma cruzi kinetoplast minicircle DNA isolated from whole blood lysates: diagnosis of chronic Chagas' disease.

    Herbert A. Avila;David S. Sigman;Lee M. Cohen;Robert C. Millikan

  • Phylogeny of trypanosomes as inferred from the small and large subunit rRNAs: implications for the evolution of parasitism in the trypanosomatid protozoa

    Dmitri A. Maslov;Julius Lukeš;Milan Jirku;Larry Simpson

  • Kinetoplast DNA minicircles encode guide RNAs for editing of cytochrome oxidase subunit III mRNA

    Nancy R. Sturm;Larry Simpson

  • Guide RNAs in kinetoplastid mitochondria have a nonencoded 3' oligo(U) tail involved in recognition of the preedited region.

    Beat Blum;Larry Simpson

  • RNA editing and the mitochondrial cryptogenes of kinetoplastid protozoa

    Larry Simpson;Janet Shaw

  • Editing of kinetoplastid mitochondrial mRNAs by uridine addition and deletion generates conserved amino acid sequences and AUG initiation codons

    Janet M. Shaw;Jean E. Feagin;Kenneth Stuart;Larry Simpson;Larry Simpson

  • Detection of Trypanosoma cruzi in blood specimens of chronic chagasic patients by polymerase chain reaction amplification of kinetoplast minicircle DNA: comparison with serology and xenodiagnosis.

    H A Avila;J B Pereira;O Thiemann;E De Paiva

  • The Kinetoplast of the Hernoflagellates

    Larry Simpson

  • Uridine insertion/deletion RNA editing in trypanosome mitochondria: A complex business

    Larry Simpson;Sandro Sbicego;Ruslan Aphasizhev

  • Kinetoplastid mitochondria contain functional tRNAs which are encoded in nuclear DNA and also contain small mlnltircJe and maxicircle transcripts of unknown function

    A M Simpson;Y Suyama;H Dewes;D A Campbell

  • Evolution of RNA editing in trypanosome mitochondria

    Larry Simpson;Otavio H. Thiemann;Nicholas J. Savill;Juan D. Alfonzo

  • C to U editing of the anticodon of imported mitochondrial tRNA(Trp) allows decoding of the UGA stop codon in Leishmania tarentolae

    Juan D. Alfonzo;Valerie Blanc;Antonio M. Estévez;Mary Anne T. Rubio

  • Kinetoplast DNA in trypanosomid flagellates.

    Larry Simpson

  • The polarity of editing within a multiple gRNA-mediated domain is due to formation of anchors for upstream gRNAs by downstream editing

    Dmitri A. Maslov;Larry Simpson

  • Sequences of six genes and several open reading frames in the kinetoplast maxicircle DNA of Leishmania tarentolae.

    V F de la Cruz;N Neckelmann;L Simpson

  • Isolation of a U‐insertion/deletion editing complex from Leishmania tarentolae mitochondria

    Ruslan Aphasizhev;Inna Aphasizheva;Robert E. Nelson;Guanghan Gao

Frequent Co-Authors

Dmitri A. Maslov
Dmitri A. Maslov University of California, Riverside
David A. Campbell
David A. Campbell University of California, Los Angeles
Nancy R. Sturm
Nancy R. Sturm University of California, Los Angeles
James A. Lake
James A. Lake University of California, Los Angeles
Rajendra K. Agrawal
Rajendra K. Agrawal University at Albany, State University of New York
David S. Sigman
David S. Sigman University of California, Los Angeles
Julius Lukeš
Julius Lukeš Czech Academy of Sciences
Linda L. Spremulli
Linda L. Spremulli University of North Carolina at Chapel Hill
Z. Hong Zhou
Z. Hong Zhou University of California, Los Angeles
Kenneth Stuart
Kenneth Stuart University of Washington

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