World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 90 685 609 318 265 282 28732

Robert A. Clark publications per year

The chart shows the history of publications by Robert A. Clark between 1951 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert A. Clark published across 76 years, from 1951 to 2026, averaging 10 papers a year. Output peaked at 26 publications in 1982. 8 of the 762 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1951 to 2026. Vertical axis: number of publications, 0 to 26. Peak 26 publications in 1982. 1951: 3 publications 1952: 2 publications 1953: 0 publications 1954: 1 publication 1955: 2 publications 1956: 1 publication 1957: 1 publication 1958: 0 publications 1959: 0 publications 1960: 3 publications 1961: 5 publications 1962: 1 publication 1963: 1 publication 1964: 2 publications 1965: 1 publication 1966: 3 publications 1967: 1 publication 1968: 2 publications 1969: 5 publications 1970: 4 publications 1971: 5 publications 1972: 5 publications 1973: 8 publications 1974: 6 publications 1975: 12 publications 1976: 7 publications 1977: 11 publications 1978: 8 publications 1979: 17 publications 1980: 10 publications 1981: 15 publications 1982: 26 publications 1983: 12 publications 1984: 12 publications 1985: 16 publications 1986: 11 publications 1987: 16 publications 1988: 17 publications 1989: 24 publications 1990: 22 publications 1991: 21 publications 1992: 18 publications 1993: 11 publications 1994: 22 publications 1995: 24 publications 1996: 11 publications 1997: 16 publications 1998: 15 publications 1999: 18 publications 2000: 11 publications 2001: 19 publications 2002: 12 publications 2003: 17 publications 2004: 17 publications 2005: 13 publications 2006: 11 publications 2007: 14 publications 2008: 25 publications 2009: 12 publications 2010: 14 publications 2011: 7 publications 2012: 13 publications 2013: 18 publications 2014: 6 publications 2015: 15 publications 2016: 10 publications 2017: 8 publications 2018: 11 publications 2019: 9 publications 2020: 13 publications 2021: 12 publications 2022: 2 publications 2023: 6 publications 2024: 5 publications 2025: 6 publications 2026: 2 publications
1951 2026

762 publications in total across all disciplines

View publications per year as a table
Robert A. Clark: publications per year, 1951 to 2026
Year Publications
1951 3
1952 2
1953 0
1954 1
1955 2
1956 1
1957 1
1958 0
1959 0
1960 3
1961 5
1962 1
1963 1
1964 2
1965 1
1966 3
1967 1
1968 2
1969 5
1970 4
1971 5
1972 5
1973 8
1974 6
1975 12
1976 7
1977 11
1978 8
1979 17
1980 10
1981 15
1982 26
1983 12
1984 12
1985 16
1986 11
1987 16
1988 17
1989 24
1990 22
1991 21
1992 18
1993 11
1994 22
1995 24
1996 11
1997 16
1998 15
1999 18
2000 11
2001 19
2002 12
2003 17
2004 17
2005 13
2006 11
2007 14
2008 25
2009 12
2010 14
2011 7
2012 13
2013 18
2014 6
2015 15
2016 10
2017 8
2018 11
2019 9
2020 13
2021 12
2022 2
2023 6
2024 5
2025 6
2026 2
Total 762
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Robert A. Clark publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Robert A. Clark sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 64 bars. Horizontal axis: publications, 55–64 to 679+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 135–144 publications. The last bar groups every scientist with 679 publications or more. The highlighted bar, 275–284 publications, is where this scientist sits. 55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55–64 publications 679+

This scientist: 282 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

View publications distribution as a table
Number of Microbiology scientists by publication count, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
Publications Scientists This scientist
55–64 8
65–74 29
75–84 55
85–94 112
95–104 137
105–114 190
115–124 235
125–134 234
135–144 288
145–154 265
155–164 264
165–174 253
175–184 276
185–194 190
195–204 234
205–214 208
215–224 198
225–234 155
235–244 161
245–254 160
255–264 146
265–274 139
275–284 148 282
285–294 115
295–304 96
305–314 88
315–324 106
325–334 65
335–344 76
345–354 64
355–364 62
365–374 65
375–384 61
385–394 34
395–404 44
405–414 36
415–424 35
425–434 29
435–444 33
445–454 34
455–464 25
465–474 26
475–484 20
485–494 19
495–504 16
505–514 17
515–524 23
525–534 14
535–544 14
545–554 18
555–564 12
565–574 7
575–584 9
585–594 9
595–604 9
605–614 7
615–624 9
625–634 7
635–644 4
645–654 5
655–664 6
665–674 7
675–678 3
679+ 99
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Robert A. Clark D-index placement in Microbiology in 2026

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

No. of scientists
50 100 150
Bar chart with 88 bars. Horizontal axis: D-Index, 40 to 127+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 58 D-Index. The last bar groups every scientist with 127 D-Index or more. The highlighted bar, 90 D-Index, is where this scientist sits. 40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 90 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

View D-Index distribution as a table
Number of Microbiology scientists by D-index, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
D-Index Scientists This scientist
40 30
41 86
42 90
43 117
44 122
45 123
46 108
47 110
48 106
49 109
50 129
51 111
52 116
53 127
54 134
55 134
56 112
57 136
58 162
59 151
60 139
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94
71 93
72 96
73 92
74 80
75 66
76 87
77 60
78 73
79 59
80 57
81 55
82 47
83 77
84 50
85 45
86 42
87 41
88 32
89 38
90 35 90
91 34
92 27
93 26
94 33
95 22
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18
108 14
109 10
110 9
111 7
112 11
113 6
114 15
115 10
116 12
117 7
118 10
119 10
120 11
121 2
122 7
123 12
124 5
125 9
126 6
127+ 95
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Overview

Robert A. Clark is affiliated with The University of Texas Health Science Center at San Antonio in the United States. Their research output primarily focuses on medicine, with notable engagement in multiple subfields including Global and Planetary Change, Oncology, Neurology, Immunology, and Aerospace Engineering.

The scientist has contributed to a range of topics across their work, with several fields of interest documented:

  • Advanced Aircraft Design and Technologies
  • Flood Risk Assessment and Management
  • Long-Term Effects of COVID-19
  • Advanced Combustion Engine Technologies
  • CAR-T cell therapy research
  • Meteorological Phenomena and Simulations
  • Optimism, Hope, and Well-being

Their publication record includes papers in various well-regarded scientific venues. Frequent venues where their work appears include Aging Cell, JAMA Network Open, Journal of Allergy and Clinical Immunology, Journal of Engineering for Gas Turbines and Power, and the AIAA SCITECH 2023 Forum.

Recent notable papers include:

  • "Comparison of Intracranial Pressure Measurements Before and After Hypertonic Saline or Mannitol Treatment in Children With Severe Traumatic Brain Injury" (2022) published in JAMA Network Open
  • "Immunologic resilience and COVID-19 survival advantage" (2021) published in Journal of Allergy and Clinical Immunology
  • "Mobilization-based transplantation of young-donor hematopoietic stem cells extends lifespan in mice" (2020) published in Aging Cell
  • "The 23 June 2016 West Virginia Flash Flood Event as Observed through Two Hydrometeorology Testbed Experiments" (2020) published in Weather and Forecasting
  • "Inpatient psychiatry unit devoted to COVID-19 patients" (2021) published in Comprehensive Psychiatry

Robert A. Clark frequently collaborates with a set of coauthors, with repeated partnerships including Sunil K. Ahuja, Grace C. Lee, Marcos I. Restrepo, Nathan Harper, and Muthu Saravanan Manoharan. These collaborations indicate ongoing research relationships across multiple topics.

Clark also has contributions to academic books, including a publication with IT Governance Publishing eBooks entitled Business Continuity and the Pandemic Threat - Learning from COVID-19 while preparing for the next pandemic, published in 2022.

Best Publications

  • The Influence of CCL3L1 Gene-Containing Segmental Duplications on HIV-1/AIDS Susceptibility

    Enrique Gonzalez;Hemant Kulkarni;Hector Bolivar;Andrea Mangano

  • The neutrophil: Function and clinical disorders

    Robert A. Clark;Seymour J. Klebanoff

  • Subcellular localization of the b-cytochrome component of the human neutrophil microbicidal oxidase: translocation during activation.

    N. Borregaard;J. M. Heiple;E. R. Simons;R. A. Clark

  • Two Novel Proteins Activate Superoxide Generation by the NADPH Oxidase NOX1

    Botond Bánfi;Robert A. Clark;Klaus Steger;Karl Heinz Krause

  • Two cytosolic neutrophil oxidase components absent in autosomal chronic granulomatous disease

    Bryan D. Volpp;William M. Nauseef;Robert A. Clark

  • Two cytosolic components of the human neutrophil respiratory burst oxidase translocate to the plasma membrane during cell activation.

    Robert A. Clark;Bryan D. Volpp;Kevin G. Leidal;William M. Nauseef

  • Cloning of a 67-kD neutrophil oxidase factor with similarity to a noncatalytic region of p60c-src.

    Thomas L. Leto;Karen J. Lomax;Bryan D. Volpp;Hiroyuki Nunoi

  • Enhanced CD4+ T-cell recovery with earlier HIV-1 antiretroviral therapy.

    Tuan D Le;Edwina J. Wright;Davey M. Smith;Weijing He

  • Nasal mast cells in perennial allergic rhinitics exhibit increased expression of the Fc epsilonRI, CD40L, IL-4, and IL-13, and can induce IgE synthesis in B cells.

    R Pawankar;M Okuda;H Yssel;K Okumura

  • The Wiskott-Aldrich syndrome: studies of lymphocytes, granulocytes, and platelets

    H. D. Ochs;S. J. Slichter;L. A. Harker;W. E. Von Behrens

  • Localisation of atopy and β subunit of high-affinity IgE receptor (Fc∈RI) on chromosome 11q

    A.J. Sandford;T. Shirakawa;M.F. Moffat;S.E. Daniels

  • Assembly of the neutrophil respiratory burst oxidase. Protein kinase C promotes cytoskeletal and membrane association of cytosolic oxidase components.

    William M. Nauseef;Bryan D. Volpp;Sally McCormick;Kevin G. Leidal

  • Neutrophil nicotinamide adenine dinucleotide phosphate oxidase assembly. Translocation of p47-phox and p67-phox requires interaction between p47-phox and cytochrome b558.

    Paul G. Heyworth;John T. Curnutte;William M. Nauseef;Bryan D. Volpp

  • Neutrophil mediated tumor cell cytotoxicity: role of the peroxidase system

    Robert A Clark;S. J. Klebanoff

  • Genealogy of the CCR5 locus and chemokine system gene variants associated with altered rates of HIV-1 disease progression

    Srinivas Mummidi;Seema S. Ahuja;Enrique Gonzalez;Enrique Gonzalez;Stephanie A. Anderson

  • Cloning of the cDNA and functional expression of the 47-kilodalton cytosolic component of human neutrophil respiratory burst oxidase.

    Bryan D. Volpp;William M. Nauseef;John E. Donelson;David R. Moser

  • Immunosuppression by activated human neutrophils. Dependence on the myeloperoxidase system.

    Aly El-Hag;R. A. Clark

  • Defective granulocyte chemotaxis in the Chediak-Higashi syndrome

    Robert A. Clark;Harry R. Kimball

  • Role of redox-regulated transcription factors in inflammation, aging and age-related diseases

    Y. Lavrovsky;Bandana Chatterjee;Robert A Clark;A. K. Roy

  • Calreticulin Functions as a Molecular Chaperone in the Biosynthesis of Myeloperoxidase

    William M. Nauseef;Sally J. McCormick;Robert A. Clark

  • IgE enhances Fc epsilon receptor I expression and IgE-dependent release of histamine and lipid mediators from human umbilical cord blood-derived mast cells: synergistic effect of IL-4 and IgE on human mast cell Fc epsilon receptor I expression and mediator release.

    Masao Yamaguchi;Koichi Sayama;Koji Yano;Chris S. Lantz

  • Granulocyte chemotaxis: an improved in vitro assay employing 51 Cr-labeled granulocytes.

    John I. Gallin;Robert A. Clark;Harry R. Kimball

  • The selective eosinophil chemotactic activity of histamine.

    R A Clark;J I Gallin;A P Kaplan

Frequent Co-Authors

William M. Nauseef
William M. Nauseef University of Iowa
Sunil K. Ahuja
Sunil K. Ahuja The University of Texas Health Science Center at San Antonio
Anthony J. Valente
Anthony J. Valente The University of Texas Health Science Center at San Antonio
Matthew J. Dolan
Matthew J. Dolan San Antonio Military Medical Center
Seymour J. Klebanoff
Seymour J. Klebanoff University of Washington
Vincent C. Marconi
Vincent C. Marconi Emory University
Brian K. Agan
Brian K. Agan Uniformed Services University of the Health Sciences
Karl-Heinz Krause
Karl-Heinz Krause University of Geneva
Bysani Chandrasekar
Bysani Chandrasekar University of Missouri
Michael J. Bamshad
Michael J. Bamshad University of Washington

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