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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 49 14619 13161 3733 3055 78 28298

James J. Morgan publications per year

The chart shows the history of publications by James J. Morgan between 1960 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James J. Morgan published across 67 years, from 1960 to 2026, averaging 1.4 papers a year. Output peaked at 5 publications in 1980. 5 of the 97 publications appeared in the last two years.

No. of publications
1 2 3 4 5
Bar chart. Horizontal axis: year, 1960 to 2026. Vertical axis: number of publications, 0 to 5. Peak 5 publications in 1980. 1960: 2 publications 1961: 0 publications 1962: 2 publications 1963: 0 publications 1964: 1 publication 1965: 3 publications 1966: 3 publications 1967: 2 publications 1968: 1 publication 1969: 0 publications 1970: 2 publications 1971: 0 publications 1972: 2 publications 1973: 1 publication 1974: 0 publications 1975: 2 publications 1976: 1 publication 1977: 4 publications 1978: 4 publications 1979: 3 publications 1980: 5 publications 1981: 3 publications 1982: 3 publications 1983: 2 publications 1984: 2 publications 1985: 2 publications 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 1 publication 1990: 3 publications 1991: 2 publications 1992: 1 publication 1993: 2 publications 1994: 4 publications 1995: 3 publications 1996: 2 publications 1997: 2 publications 1998: 2 publications 1999: 4 publications 2000: 3 publications 2001: 2 publications 2002: 1 publication 2003: 0 publications 2004: 0 publications 2005: 1 publication 2006: 0 publications 2007: 0 publications 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 2 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 1 publication 2021: 1 publication 2022: 2 publications 2023: 1 publication 2024: 1 publication 2025: 4 publications 2026: 1 publication
1960 2026

97 publications in total across all disciplines

View publications per year as a table
James J. Morgan: publications per year, 1960 to 2026
Year Publications
1960 2
1961 0
1962 2
1963 0
1964 1
1965 3
1966 3
1967 2
1968 1
1969 0
1970 2
1971 0
1972 2
1973 1
1974 0
1975 2
1976 1
1977 4
1978 4
1979 3
1980 5
1981 3
1982 3
1983 2
1984 2
1985 2
1986 1
1987 0
1988 0
1989 1
1990 3
1991 2
1992 1
1993 2
1994 4
1995 3
1996 2
1997 2
1998 2
1999 4
2000 3
2001 2
2002 1
2003 0
2004 0
2005 1
2006 0
2007 0
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 2
2017 0
2018 0
2019 0
2020 1
2021 1
2022 2
2023 1
2024 1
2025 4
2026 1
Total 97
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James J. Morgan publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where James J. Morgan sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 61–80 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 78 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66 78
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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James J. Morgan D-index placement in Chemistry in 2026

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

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 48–49 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 49 D-Index — 19th percentile

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

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835 49
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

James J. Morgan is affiliated with the California Institute of Technology in the United States. Their research spans multiple fields, primarily medicine and biochemistry, genetics, and molecular biology. Within these areas, Morgan has contributed notably to subfields such as physiology, endocrinology, diabetes and metabolism, molecular biology, psychiatry and mental health, and genetics.

Their work frequently addresses topics including adenosine and purinergic signaling, hormonal regulation and hypertension, neurological complications and syndromes, circadian rhythm and melatonin, restless legs syndrome research, genetics and neurodevelopmental disorders, as well as geochemistry and elemental analysis.

Recent research publications authored or coauthored by James J. Morgan include:

  • Characterization of the Expression of the ATP-Gated P2X7 Receptor Following Status Epilepticus and during Epilepsy Using a P2X7-EGFP Reporter Mouse, 2020, Neuroscience Bulletin
  • Rates of Abiotic MnII Oxidation by O2: Influence of Various Multidentate Ligands at High pH, 2021, Environmental Science & Technology

Notably, coauthors on projects related to Morgan's research include Tobías Engel, Mariana Alves, Laura de Diego-García, Giorgia Conte, and Edward Beamer.

Publishing venues where Morgan has frequently contributed comprise Brain Behavior and Immunity, Journal of the Endocrine Society, Neuroscience Bulletin, Environmental Science & Technology, and the British Journal of Pharmacology.

In the domain of neurological research, Morgan's work covers the investigation of ATP-gated P2X7 receptor functions and their implications in epilepsy and seizures. Their studies include investigation of gene expression regulation mechanisms, such as the polyadenylation of mRNA in temporal lobe epilepsy.

Best Publications

  • Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters

    Werner Stumm;James J. Morgan

  • Aquatic Chemistry: An Introduction Emphasizing Chemical Equilibria in Natural Waters

    Werner Stumm;James J. Morgan

  • Reduction and dissolution of manganese(III) and manganese(IV) oxides by organics: 2. Survey of the reactivity of organics

    Alan T. Stone;James J. Morgan

  • Kinetics and product of ferrous iron oxygenation in aqueous systems

    Windsor. Sung;James J. Morgan

  • Kinetics of reaction between O2 and Mn(II) species in aqueous solutions

    James J. Morgan

  • Colloid-chemical properties of manganese dioxide

    James J Morgan;Werner Stumm

  • Effects of aqueous chemistry on the binding of polycyclic aromatic hydrocarbons by dissolved humic materials

    Mark A. Schlautman;James J. Morgan

  • Reduction and dissolution of manganese(III) and manganese(IV) oxides by organics. 1. Reaction with hydroquinone.

    Alan T. Stone;James J. Morgan

  • Reactions at Oxide Surfaces. 1. Oxidation of As(III) by Synthetic Birnessite.

    Michael J. Scott;James J. Morgan

  • Manganese(II) oxidation kinetics on metal oxide surfaces

    Simon H.R Davies;James J Morgan

  • Chemical Aspects of Coagulation

    Werner Stumm;James J. Morgan

  • Numerical method for computing equilibriums in aqueous chemical systems

    Francois Morel;James Morgan

  • Kinetic Behavior of Mn(III) Complexes of Pyrophosphate, EDTA, and Citrate

    J. Kenneth Klewicki;James J. Morgan

  • Chemical Composition of Acid Fog

    Jed M. Waldman;J. William Munger;Daniel J. Jacob;Richard C. Flagan

  • Adsorption of aquatic humic substances on colloidal-size aluminum oxide particles: Influence of solution chemistry

    Mark A. Schlautman;James J. Morgan

  • Trace metal-chelator interactions and phytoplankton growth in seawater media: Theoretical analysis and comparison with reported observations 1

    George A. Jackson;James J. Morgan

  • Chemical aspects of iron oxide coagulation in water: laboratory studies and implications for natural systems.

    Liyuan Liang;James J. Morgan

  • Oxidative removal of Mn(II) from solution catalysed by the γ-FeOOH (lepidocrocite) surface

    Windsor Sung;James J. Morgan

  • A physicochemical model for colloid exchange between a stream and a sand streambed with bed forms

    Aaron I. Packman;Aaron I. Packman;Norman H. Brooks;James J. Morgan

  • Dissolution kinetics of chrysotile at pH 7 to 10

    Roger C. Bales;James J. Morgan

Frequent Co-Authors

Werner Stumm
Werner Stumm École Polytechnique Fédérale de Lausanne
Aaron I. Packman
Aaron I. Packman Northwestern University
Yigal Erel
Yigal Erel Hebrew University of Jerusalem
Jerald L. Schnoor
Jerald L. Schnoor University of Iowa
James F. Pankow
James F. Pankow Portland State University
Clair C. Patterson
Clair C. Patterson California Institute of Technology
Roger C. Bales
Roger C. Bales University of California, Merced
Daniel J. Jacob
Daniel J. Jacob Harvard University
Michael R. Hoffmann
Michael R. Hoffmann California Institute of Technology
Alan T. Stone
Alan T. Stone Johns Hopkins University

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