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Robert T. Simpson

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Molecular Biology 58 2099 1039 115 10896

Robert T. Simpson publications per year

The chart shows the history of publications by Robert T. Simpson between 1963 and 2011, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert T. Simpson published across 49 years, from 1963 to 2011, averaging 2.5 papers a year. Output peaked at 8 publications in 1977. 1 of the 124 publications appeared in the last two years.

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

124 publications in total across all disciplines

View publications per year as a table
Robert T. Simpson: publications per year, 1963 to 2011
Year Publications
1963 1
1964 0
1965 0
1966 2
1967 0
1968 2
1969 4
1970 4
1971 3
1972 3
1973 6
1974 5
1975 2
1976 6
1977 8
1978 4
1979 3
1980 3
1981 2
1982 0
1983 2
1984 1
1985 5
1986 6
1987 2
1988 3
1989 2
1990 2
1991 3
1992 2
1993 3
1994 4
1995 2
1996 4
1997 3
1998 7
1999 4
2000 2
2001 1
2002 1
2003 1
2004 1
2005 2
2006 0
2007 0
2008 2
2009 0
2010 0
2011 1
Total 124
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Robert T. Simpson publication distribution in Molecular Biology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Molecular Biology in 2026. The highlighted bar marks where Robert T. Simpson sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 53 bars. Horizontal axis: publications, 47–56 to 564+. Vertical axis: number of scientists, 0 to 177. Most scientists, 177, have 117–126 publications. The last bar groups every scientist with 564 publications or more. The highlighted bar, 107–116 publications, is where this scientist sits. 47–56 publications: 7 scientists 57–66 publications: 17 scientists 67–76 publications: 65 scientists 77–86 publications: 90 scientists 87–96 publications: 125 scientists 97–106 publications: 131 scientists 107–116 publications: 162 scientists 117–126 publications: 177 scientists 127–136 publications: 158 scientists 137–146 publications: 158 scientists 147–156 publications: 146 scientists 157–166 publications: 159 scientists 167–176 publications: 131 scientists 177–186 publications: 110 scientists 187–196 publications: 112 scientists 197–206 publications: 100 scientists 207–216 publications: 89 scientists 217–226 publications: 98 scientists 227–236 publications: 74 scientists 237–246 publications: 72 scientists 247–256 publications: 63 scientists 257–266 publications: 53 scientists 267–276 publications: 54 scientists 277–286 publications: 49 scientists 287–296 publications: 52 scientists 297–306 publications: 43 scientists 307–316 publications: 46 scientists 317–326 publications: 41 scientists 327–336 publications: 42 scientists 337–346 publications: 31 scientists 347–356 publications: 28 scientists 357–366 publications: 29 scientists 367–376 publications: 26 scientists 377–386 publications: 24 scientists 387–396 publications: 24 scientists 397–406 publications: 14 scientists 407–416 publications: 13 scientists 417–426 publications: 20 scientists 427–436 publications: 12 scientists 437–446 publications: 20 scientists 447–456 publications: 11 scientists 457–466 publications: 10 scientists 467–476 publications: 14 scientists 477–486 publications: 14 scientists 487–496 publications: 10 scientists 497–506 publications: 13 scientists 507–516 publications: 13 scientists 517–526 publications: 2 scientists 527–536 publications: 4 scientists 537–546 publications: 6 scientists 547–556 publications: 8 scientists 557–563 publications: 6 scientists 564+ publications: 100 scientists
47–56 publications 564+

This scientist: 115 publications — 19th percentile

19% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 564 publications or more.

View publications distribution as a table
Number of Molecular Biology scientists by publication count, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
Publications Scientists This scientist
47–56 7
57–66 17
67–76 65
77–86 90
87–96 125
97–106 131
107–116 162 115
117–126 177
127–136 158
137–146 158
147–156 146
157–166 159
167–176 131
177–186 110
187–196 112
197–206 100
207–216 89
217–226 98
227–236 74
237–246 72
247–256 63
257–266 53
267–276 54
277–286 49
287–296 52
297–306 43
307–316 46
317–326 41
327–336 42
337–346 31
347–356 28
357–366 29
367–376 26
377–386 24
387–396 24
397–406 14
407–416 13
417–426 20
427–436 12
437–446 20
447–456 11
457–466 10
467–476 14
477–486 14
487–496 10
497–506 13
507–516 13
517–526 2
527–536 4
537–546 6
547–556 8
557–563 6
564+ 100
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Robert T. Simpson D-index placement in Molecular Biology in 2026

The chart shows the D-index (discipline H-index) distribution of Molecular Biology scientists ranked by Research.com in 2026. The highlighted bar marks where Robert T. Simpson sits on this spectrum.

No. of scientists
25 50 75 100 125
Bar chart with 54 bars. Horizontal axis: D-Index, 40–41 to 145+. Vertical axis: number of scientists, 0 to 131. Most scientists, 131, have 64–65 D-Index. The last bar groups every scientist with 145 D-Index or more. The highlighted bar, 58–59 D-Index, is where this scientist sits. 40–41 D-Index: 36 scientists 42–43 D-Index: 101 scientists 44–45 D-Index: 115 scientists 46–47 D-Index: 121 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 130 scientists 52–53 D-Index: 106 scientists 54–55 D-Index: 116 scientists 56–57 D-Index: 113 scientists 58–59 D-Index: 129 scientists 60–61 D-Index: 120 scientists 62–63 D-Index: 105 scientists 64–65 D-Index: 131 scientists 66–67 D-Index: 95 scientists 68–69 D-Index: 97 scientists 70–71 D-Index: 106 scientists 72–73 D-Index: 83 scientists 74–75 D-Index: 89 scientists 76–77 D-Index: 77 scientists 78–79 D-Index: 70 scientists 80–81 D-Index: 73 scientists 82–83 D-Index: 60 scientists 84–85 D-Index: 48 scientists 86–87 D-Index: 45 scientists 88–89 D-Index: 50 scientists 90–91 D-Index: 31 scientists 92–93 D-Index: 51 scientists 94–95 D-Index: 43 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 39 scientists 100–101 D-Index: 41 scientists 102–103 D-Index: 29 scientists 104–105 D-Index: 33 scientists 106–107 D-Index: 35 scientists 108–109 D-Index: 20 scientists 110–111 D-Index: 38 scientists 112–113 D-Index: 19 scientists 114–115 D-Index: 28 scientists 116–117 D-Index: 13 scientists 118–119 D-Index: 23 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 15 scientists 124–125 D-Index: 11 scientists 126–127 D-Index: 21 scientists 128–129 D-Index: 7 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 14 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 9 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 16 scientists 142–143 D-Index: 7 scientists 144 D-Index: 7 scientists 145+ D-Index: 100 scientists
40–41 D-Index 145+

This scientist: 58 D-Index — 34th percentile

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

The last bar groups every scientist with 145 D-Index or more.

View D-Index distribution as a table
Number of Molecular Biology scientists by D-index, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
D-Index Scientists This scientist
40–41 36
42–43 101
44–45 115
46–47 121
48–49 118
50–51 130
52–53 106
54–55 116
56–57 113
58–59 129 58
60–61 120
62–63 105
64–65 131
66–67 95
68–69 97
70–71 106
72–73 83
74–75 89
76–77 77
78–79 70
80–81 73
82–83 60
84–85 48
86–87 45
88–89 50
90–91 31
92–93 51
94–95 43
96–97 38
98–99 39
100–101 41
102–103 29
104–105 33
106–107 35
108–109 20
110–111 38
112–113 19
114–115 28
116–117 13
118–119 23
120–121 16
122–123 15
124–125 11
126–127 21
128–129 7
130–131 13
132–133 14
134–135 17
136–137 9
138–139 8
140–141 16
142–143 7
144 7
145+ 100
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Overview

Robert T. Simpson was affiliated with Pennsylvania State University in the United States. Their academic career involved research activities at this institution.

There are no recorded recent papers, co-authors, publication venues, book publications, fields or subfields of study, main topics of work, or awards attributed to this scientist in the available data.

The absence of detailed publication and research information limits the profile to the known affiliation and status of the scientist.

Robert T. Simpson is deceased.

Best Publications

  • Structure of the chromatosome, a chromatin particle containing 160 base pairs of DNA and all the histones.

    Robert T. Simpson

  • Chromatin reconstituted from tandemly repeated cloned DNA fragments and core histones: A model system for study of higher order structure

    Robert T. Simpson;Fritz Thoma;Joel M. Brubaker

  • Structural features of a phased nucleosome core particle.

    Robert T. Simpson;Darrell W. Stafford

  • FUNCTIONAL TYROSYL RESIDUES IN THE ACTIVE CENTER OF BOVINE PANCREATIC CARBOXYPEPTIDASE A.

    Robert T. Simpson;James F. Riordan;Bert L. Vallee

  • Nucleosome positioning can affect the function of a cis-acting DNA element in vivo.

    Robert T. Simpson

  • Structure of chromatin containing extensively acetylated H3 and H4

    Robert T. Simpson

  • Nucleosome positioning: occurrence, mechanisms, and functional consequences.

    Robert T. Simpson

  • The global transcriptional regulators, SSN6 and TUP1, play distinct roles in the establishment of a repressive chromatin structure

    Julia Promisel Cooper;Sharon Y. Roth;Robert T. Simpson

  • Chromatin and core particles formed from the inner histones and synthetic polydeoxyribonucleotides of defined sequence

    Robert T. Simpson;Peter Künzler

  • Nuclease digestion of circular TRP1ARS1 chromatin reveals positioned nucleosomes separated by nuclease-sensitive regions

    Fritz Thoma;Lawrence W. Bergman;Robert T. Simpson

  • Two differentiable classes of metal atoms in alkaline phosphatase of Escherichia coli.

    Robert T. Simpson;Bert L. Vallee

  • Nucleosomes are positioned with base pair precision adjacent to the alpha 2 operator in Saccharomyces cerevisiae

    Mitsuhiro Shimizu;Sharon Y. Roth;Christopher Szent-Gyorgyi;Robert T. Simpson

  • The Biochemical and Phenotypic Characterization of Hho1p, the Putative Linker Histone H1 of Saccharomyces cerevisiae

    Hugh G. Patterton;Carolyn Church Landel;David Landsman;Craig L. Peterson

  • Removal of histone H1 exposes a fifty base pair DNA segment between nucleosomes.

    James P. Whitlock;Robert T. Simpson

  • Circular dichroism of calf liver nucleohistone.

    Robert T. Simpson;Herbert A. Sober

  • Fractionation of chromatin components.

    Shoshana Levy;Robert T. Simpson;Herbert A. Sober

  • Yeast alpha 2 repressor positions nucleosomes in TRP1/ARS1 chromatin.

    S Y Roth;A Dean;R T Simpson

  • Stable nucleosome positioning and complete repression by the yeast alpha 2 repressor are disrupted by amino-terminal mutations in histone H4.

    Sharon Y. Roth;Mitsuhiro Shimizu;Lianna Johnson;Michael Grunstein

  • High-resolution structural analysis of chromatin at specific loci: Saccharomyces cerevisiae silent mating-type locus HMRa.

    Anish Ravindra;Kerstin Weiss;Robert T. Simpson

  • Selective stimulation of nonhistone chromatin protein synthesis in lymphoid cells by phytohemagglutinin.

    Ronald Levy;Shoshana Levy;Steven A. Rosenberg;Robert T. Simpson

Frequent Co-Authors

Bert L. Vallee
Bert L. Vallee Harvard University
Ayusman Sen
Ayusman Sen Pennsylvania State University
Shoshana Levy
Shoshana Levy Stanford University
Ann Dean
Ann Dean National Institutes of Health
William J. Rutter
William J. Rutter University of California, San Francisco
Jerry L. Workman
Jerry L. Workman Stowers Institute for Medical Research
Joram Piatigorsky
Joram Piatigorsky National Institutes of Health
Michael Bustin
Michael Bustin National Institutes of Health
Hong Ma
Hong Ma Pennsylvania State University
James E. Haber
James E. Haber Brandeis University

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Best Scientists Citing Robert T. Simpson

Bert L. Vallee

Bert L. Vallee

Harvard University

Publications: 52

Jeffrey C. Hansen

Jeffrey C. Hansen

Colorado State University

Publications: 43

Alan P. Wolffe

Alan P. Wolffe

Sangamo BioSciences (United States)

Publications: 40

Jeffrey J. Hayes

Jeffrey J. Hayes

University of Rochester Medical Center

Publications: 38

Karolin Luger

Karolin Luger

University of Colorado Boulder

Publications: 31

James E. Haber

James E. Haber

Brandeis University

Publications: 31

Juan Ausió

Juan Ausió

University of Victoria

Publications: 30

Joram Piatigorsky

Joram Piatigorsky

National Institutes of Health

Publications: 28

E. Morton Bradbury

E. Morton Bradbury

University of California, Davis

Publications: 27

Christopher L. Woodcock

Christopher L. Woodcock

University of Massachusetts Amherst

Publications: 26

James F. Riordan

James F. Riordan

Harvard University

Publications: 25

Jerry L. Workman

Jerry L. Workman

Stowers Institute for Medical Research

Publications: 25

Michael J. Smerdon

Michael J. Smerdon

Washington State University

Publications: 21

renato baserga

renato baserga

Temple University

Publications: 20

Craig L. Peterson

Craig L. Peterson

University of Massachusetts Chan Medical School

Publications: 19

Vincent G. Allfrey

Vincent G. Allfrey

Rockefeller University

Publications: 18

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