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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 42 17609 15928 961 859 132 5603

Emma Lloyd Raven publications per year

The chart shows the history of publications by Emma Lloyd Raven between 1975 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Emma Lloyd Raven published across 52 years, from 1975 to 2026, averaging 3.3 papers a year. Output peaked at 14 publications in 2011. 10 of the 169 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1975 to 2026. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2011. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 1 publication 1999: 0 publications 2000: 6 publications 2001: 7 publications 2002: 6 publications 2003: 11 publications 2004: 6 publications 2005: 2 publications 2006: 4 publications 2007: 8 publications 2008: 8 publications 2009: 7 publications 2010: 5 publications 2011: 14 publications 2012: 11 publications 2013: 3 publications 2014: 4 publications 2015: 4 publications 2016: 6 publications 2017: 7 publications 2018: 7 publications 2019: 4 publications 2020: 5 publications 2021: 13 publications 2022: 4 publications 2023: 3 publications 2024: 2 publications 2025: 9 publications 2026: 1 publication
1975 2026

169 publications in total across all disciplines

View publications per year as a table
Emma Lloyd Raven: publications per year, 1975 to 2026
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 1
1999 0
2000 6
2001 7
2002 6
2003 11
2004 6
2005 2
2006 4
2007 8
2008 8
2009 7
2010 5
2011 14
2012 11
2013 3
2014 4
2015 4
2016 6
2017 7
2018 7
2019 4
2020 5
2021 13
2022 4
2023 3
2024 2
2025 9
2026 1
Total 169
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Emma Lloyd Raven publications per year - data summary

  • Emma Lloyd Raven, a Chemistry scholar from University of Bristol, has 169 publications recorded across 52 years, from 1975 to 2026.
  • The oldest publication on record dates to 1975 and the most recent to 2026.
  • The most productive year is 2011, with 14 publications.
  • The least productive years with any output are 1975, 1998 and 2026, with 1 publication each.
  • 23 of the 52 years in the span carry no publications at all (1976, 1977, 1978, 1979 and others).
  • The rate of publication averages 3.3 papers per year over the whole span, or 5.8 per year counting only the 29 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 19 publications, 11% of the career total.
  • Split into equal eras - 1975-1992: 1 publication (0.1 per year); 1993-2010: 71 publications (3.9 per year); 2011-2026: 97 publications (6.1 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Emma Lloyd Raven 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 Emma Lloyd Raven 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, 121–140 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: 132 publications — 8th percentile

8% 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
81–100 302
101–120 623
121–140 918 132
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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Emma Lloyd Raven publication distribution in Chemistry in 2026 - data summary

  • The chart plots the publication count of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 63 ranges running from 61–80 to 1,295+ publications.
  • Emma Lloyd Raven, a Chemistry scholar from University of Bristol, records 132 publications - the 8th percentile of the discipline.
  • 8% of ranked Chemistry scientists score the same or lower than Emma Lloyd Raven, and about 92% score higher.
  • The median of the discipline falls in the 241–260 publications range, and Emma Lloyd Raven ranks below the median.
  • The most crowded range is 161–180 publications, holding 1,350 scientists (8% of the field).
  • 77% of the field sits in the lowest quarter of the value range (up to 361–380 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 1,295 publications or more, 100 scientists in all (<1% of the field).

Emma Lloyd Raven 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 Emma Lloyd Raven 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, 42–43 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: 42 D-Index — 3rd percentile

3% 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 42
44–45 808
46–47 776
48–49 835
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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Emma Lloyd Raven D-index placement in Chemistry in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 159+ D-Index.
  • Emma Lloyd Raven, a Chemistry scholar from University of Bristol, records 42 D-Index - the 3rd percentile of the discipline.
  • 3% of ranked Chemistry scientists score the same or lower than Emma Lloyd Raven, and about 97% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and Emma Lloyd Raven ranks below the median.
  • The most crowded range is 56–57 D-Index, holding 1,051 scientists (6% of the field).
  • 70% 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 159 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Emma Lloyd Raven is affiliated with the University of Bristol in the United Kingdom. Their research spans multiple areas within biochemistry, genetics, and molecular biology, focusing particularly on molecular biology and inorganic chemistry. Additional subfields include radiation, cell biology, and biological psychiatry.

Their scientific contributions cover a range of main topics related to both fundamental and applied biochemical processes. These topics include:

  • Metal-Catalyzed Oxygenation Mechanisms
  • Porphyrin Metabolism and Disorders
  • Heme Oxygenase-1 and Carbon Monoxide
  • Photosynthetic Processes and Mechanisms
  • Hemoglobin structure and function
  • Advanced X-ray Imaging Techniques
  • Tryptophan and brain disorders

Among recent publications, Emma Lloyd Raven has contributed to several peer-reviewed articles published in notable journals. Some of the recent papers include:

  • "Understanding the Logistics for the Distribution of Heme in Cells," 2021, published in JACS Au
  • "Rewiring the 'Push-Pull' Catalytic Machinery of a Heme Enzyme Using an Expanded Genetic Code," 2020, published in ACS Catalysis
  • "Visualizing the protons in a metalloenzyme electron proton transfer pathway," 2020, published in Proceedings of the National Academy of Sciences
  • "Unravelling the mechanisms controlling heme supply and demand," 2021, published in Proceedings of the National Academy of Sciences
  • "Discovery of a heme-binding domain in a neuronal voltage-gated potassium channel," 2020, published in Journal of Biological Chemistry

Emma Lloyd Raven has co-authored extensively, with frequent collaborators including P.C.E. Moody, Hanna Kwon, Jaswir Basran, Samuel L. Freeman, and Alistair J. Fielding.

Their work has been published most often in the following scientific venues:

  • Journal of Biological Chemistry
  • Proceedings of the National Academy of Sciences
  • Angewandte Chemie
  • Zenodo (CERN European Organization for Nuclear Research)
  • Angewandte Chemie International Edition

Best Publications

  • Extraction of glycerol from biodiesel into a eutectic based ionic liquid

    Andrew P. Abbott;Paul M. Cullis;Manda J. Gibson;Robert C. Harris

  • Crystal Structure of Mycobacterium tuberculosis Catalase-Peroxidase.

    Thomas Bertrand;Nigel A.J. Eady;Jamie N. Jones;Jesmin

  • Mechanisms of compound I formation in heme peroxidases.

    Alexander N.P. Hiner;Emma L. Raven;Roger N.F. Thorneley;Francisco Garcı́a-Cánovas

  • Crystal Structure of the Ascorbate Peroxidase-Ascorbate Complex

    Katherine H. Sharp;Martin Mewies;Peter C.E. Moody;Emma Lloyd Raven

  • The Nature and Reactivity of Ferryl Heme in Compounds I and II

    Peter C. E. Moody;Emma L. Raven

  • Neutron cryo-crystallography captures the protonation state of ferryl heme in a peroxidase

    Cecilia M. Casadei;Andrea Gumiero;Clive L. Metcalfe;Emma J. Murphy

  • Kinetic study of the inactivation of ascorbate peroxidase by hydrogen peroxide.

    Alexander N. P. Hiner;José Neptuno Rodríguez-López;Marino B. Arnao;Emma Lloyd Raven

  • Regulation of intracellular heme trafficking revealed by subcellular reporters.

    Xiaojing Yuan;Nicole Rietzschel;Hanna Kwon;Ana Beatriz Walter Nuno

  • Nature of the Ferryl Heme in Compounds I and II

    Andrea Gumiero;Clive L. Metcalfe;Arwen R. Pearson;Emma Lloyd Raven

  • Structure and Reaction Mechanism in the Heme Dioxygenases

    Igor Efimov;Jaswir Basran;Sarah J. Thackray;Sandeep Handa

  • Substrate binding and catalytic mechanism in ascorbate peroxidase: evidence for two ascorbate binding sites.

    Latesh Lad;Martin Mewies;Emma Lloyd Raven

  • Oxidation of L-tryptophan in biology: a comparison between tryptophan 2,3-dioxygenase and indoleamine 2,3-dioxygenase.

    Sara A. Rafice;Nishma Chauhan;Igor Efimov;Jaswir Basran

  • The tuberculosis prodrug isoniazid bound to activating peroxidases.

    Clive L. Metcalfe;Isabel K. Macdonald;Emma J. Murphy;Katherine A. Brown

  • Redox-linked domain movements in the catalytic cycle of cytochrome p450 reductase.

    Wei Cheng Huang;Jacqueline Ellis;Peter C.E. Moody;Emma L. Raven

  • Understanding functional diversity and substrate specificity in haem peroxidases: what can we learn from ascorbate peroxidase?

    Emma Lloyd Raven

  • The mechanism of formation of N-formylkynurenine by heme dioxygenases.

    Jaswir Basran;Igor Efimov;Nishma Chauhan;Sarah J. Thackray

  • A Kinetic, Spectroscopic, and Redox Study of Human Tryptophan 2,3-Dioxygenase†

    Jaswir Basran;Sara A. Rafice;Nishma Chauhan;Igor Efimov

  • Redox and spectroscopic properties of human indoleamine 2,3-dioxygenase and a His303Ala variant: implications for catalysis.

    Nektaria D. Papadopoulou;Martin Mewies;Kirsty J. McLean;Harriet E. Seward

  • An analysis of substrate binding interactions in the heme peroxidase enzymes: a structural perspective.

    Andrea Gumiero;Emma J. Murphy;Clive L. Metcalfe;Peter C.E. Moody

  • Detection of a tryptophan radical in the reaction of ascorbate peroxidase with hydrogen peroxide

    Alexander N. P. Hiner;Jesús I. Martínez;Marino B. Arnao;Manuel Acosta

Frequent Co-Authors

Gordon C. K. Roberts
Gordon C. K. Roberts University of Leicester
Michael R. F. Lee
Michael R. F. Lee Harper Adams University
Stephen K Chapman
Stephen K Chapman University of Edinburgh
Andrew W. Munro
Andrew W. Munro University of Manchester
Andrew J. Thomson
Andrew J. Thomson University of East Anglia
Myles R. Cheesman
Myles R. Cheesman University of East Anglia
Anne L. Martel
Anne L. Martel University of Toronto
Marino B. Arnao
Marino B. Arnao University of Murcia
Francisco García-Cánovas
Francisco García-Cánovas University of Murcia

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