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
Animal Science and Veterinary 29 2542 2314 41 40 90 4499

M. A. Gemmell publications per year

The chart shows the history of publications by M. A. Gemmell between 1956 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. M. A. Gemmell published across 70 years, from 1956 to 2025, averaging 1.7 papers a year. Output peaked at 6 publications in 1969. 4 of the 116 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1956 to 2025. Vertical axis: number of publications, 0 to 6. Peak 6 publications in 1969. 1956: 1 publication 1957: 2 publications 1958: 3 publications 1959: 1 publication 1960: 0 publications 1961: 4 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 1 publication 1966: 1 publication 1967: 0 publications 1968: 4 publications 1969: 6 publications 1970: 1 publication 1971: 0 publications 1972: 3 publications 1973: 1 publication 1974: 3 publications 1975: 4 publications 1976: 4 publications 1977: 6 publications 1978: 5 publications 1979: 6 publications 1980: 3 publications 1981: 1 publication 1982: 0 publications 1983: 2 publications 1984: 2 publications 1985: 2 publications 1986: 5 publications 1987: 6 publications 1988: 2 publications 1989: 1 publication 1990: 3 publications 1991: 2 publications 1992: 1 publication 1993: 3 publications 1994: 3 publications 1995: 2 publications 1996: 1 publication 1997: 1 publication 1998: 4 publications 1999: 2 publications 2000: 1 publication 2001: 5 publications 2002: 1 publication 2003: 0 publications 2004: 0 publications 2005: 0 publications 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: 1 publication 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 1 publication 2022: 0 publications 2023: 1 publication 2024: 2 publications 2025: 2 publications
1956 2025

116 publications in total across all disciplines

View publications per year as a table
M. A. Gemmell: publications per year, 1956 to 2025
Year Publications
1956 1
1957 2
1958 3
1959 1
1960 0
1961 4
1962 0
1963 0
1964 0
1965 1
1966 1
1967 0
1968 4
1969 6
1970 1
1971 0
1972 3
1973 1
1974 3
1975 4
1976 4
1977 6
1978 5
1979 6
1980 3
1981 1
1982 0
1983 2
1984 2
1985 2
1986 5
1987 6
1988 2
1989 1
1990 3
1991 2
1992 1
1993 3
1994 3
1995 2
1996 1
1997 1
1998 4
1999 2
2000 1
2001 5
2002 1
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 1
2016 0
2017 0
2018 0
2019 0
2020 0
2021 1
2022 0
2023 1
2024 2
2025 2
Total 116
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M. A. Gemmell publications per year - data summary

  • M. A. Gemmell, a Animal Science and Veterinary scholar from University of Otago, has 116 publications recorded across 70 years, from 1956 to 2025.
  • The oldest publication on record dates to 1956 and the most recent to 2025.
  • The most productive years are 1969, 1977, 1979 and 1987, with 6 publications each.
  • The least productive years with any output are 1956, 1959, 1965, 1966 and others, with 1 publication each.
  • 25 of the 70 years in the span carry no publications at all (1960, 1962, 1963, 1964 and others).
  • The rate of publication averages 1.7 papers per year over the whole span, or 2.6 per year counting only the 45 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 6 publications, 5% of the career total.
  • Split into equal eras - 1956-1979: 56 publications (2.3 per year); 1980-2003: 53 publications (2.2 per year); 2004-2025: 7 publications (0.3 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

M. A. Gemmell publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where M. A. Gemmell sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 89–93 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 90 publications — 21st percentile

21% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84 90
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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M. A. Gemmell publication distribution in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the publication count of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 84 ranges running from 29–33 to 442+ publications.
  • M. A. Gemmell, a Animal Science and Veterinary scholar from University of Otago, records 90 publications - the 21st percentile of the discipline.
  • 21% of ranked Animal Science and Veterinary scientists score the same or lower than M. A. Gemmell, and about 79% score higher.
  • The median of the discipline falls in the 139–143 publications range, and M. A. Gemmell ranks below the median.
  • The most crowded range is 119–123 publications, holding 109 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 129–133 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 442 publications or more, 99 scientists in all (3% of the field).

M. A. Gemmell D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where M. A. Gemmell sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 29 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 29 D-Index — 20th percentile

20% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116 29
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
Download as CSV

M. A. Gemmell D-index placement in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 58 ranges running from 20 to 77+ D-Index.
  • M. A. Gemmell, a Animal Science and Veterinary scholar from University of Otago, records 29 D-Index - the 20th percentile of the discipline.
  • 20% of ranked Animal Science and Veterinary scientists score the same or lower than M. A. Gemmell, and about 80% score higher.
  • The median of the discipline falls in the 36 D-Index range, and M. A. Gemmell ranks below the median.
  • The most crowded range is 31 D-Index, holding 158 scientists (5% of the field).
  • 43% of the field sits in the lowest quarter of the value range (up to 34 D-Index), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 77 D-Index or more, 100 scientists in all (3% of the field).

Overview

M. A. Gemmell is affiliated with the University of Otago in New Zealand. Their research primarily focuses on the fields of Engineering and Physics and Astronomy, with a particular emphasis on subfields such as Nuclear and High Energy Physics, Biomedical Engineering, Aerospace Engineering, Periodontics, and Materials Chemistry.

The scientist's work extensively covers topics related to magnetic confinement fusion research and superconducting materials and applications, along with fusion materials and technologies. Other areas of interest include particle accelerators and beam dynamics, nuclear reactor physics and engineering, as well as oral microbiology and periodontitis research and dental health and care utilization.

Gemmell has contributed to several recent publications across a range of high-impact journals. Selected papers include:

  • Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40, 2023, Nuclear Fusion
  • Overview of recent results from the ST40 compact high-field spherical tokamak, 2024, Nuclear Fusion
  • From minimum-viable-products to full models: a step-wise development of diagnostic forward models in support of design, analysis and modelling on the ST40 tokamak, 2024, Plasma Physics and Controlled Fusion
  • A randomised, double-blind clinical study into the effect of zinc citrate trihydrate toothpaste on oral plaque microbiome ecology and function, 2025, Scientific Reports
  • Integrated modeling of ST40 hot ion plasmas using the TGLF transport model, 2025, Plasma Physics and Controlled Fusion

The main venues where Gemmell's research is published include Nuclear Fusion, Plasma Physics and Controlled Fusion, and Scientific Reports.

Frequent collaborators in their research include Hazel Lowe, M. Sertoli, A. Sladkomedova, H.V. Willett, and J. Wood, each having coauthored multiple papers with Gemmell.

Best Publications

  • WHO/OIE manual on echinococcosis in humans and animals: a public health problem of global concern.

    J. Eckert;M. A. Gemmell;F. X. Meslin;Z. S. Pawłowski

  • Echinococcosis in humans: clinical aspects, diagnosis and treatment.

    Z. S. Pawłowski;J. Eckert;D. A. Vuitton;R. W. Ammann

  • Geographic distribution and prevalence.

    J. Eckert;P. M. Schantz;R. B. Gasser;P. R. Torgerson

  • Echinococcosis in animals: clinical aspects, diagnosis and treatment.

    J. Eckert;P. Deplazes;P. S. Craig;M. A. Gemmell

  • Population dynamics in echinococcosis and cysticercosis: biological parameters of Echinococcus granulosus in dogs and sheep.

    M. A. Gemmell;J. R. Lawson;M. G. Roberts

  • Australasian contributions to an understanding of the epidemiology and control of hydatid disease caused by Echinococcus granulosus--past, present and future.

    M.A. Gemmell

  • Population dynamics in echinococcosis and cysticercosis: mathematical model of the life-cycle of Echinococcus granulosus.

    M. G. Roberts;J. R. Lawson;M. A. Gemmell

  • Population dynamics in echinococcosis and cysticercosis: evaluation of the biological parameters of Taenia hydatigena and T. ovis and comparison with those of Echinococcus granulosus

    M. A. Gemmell;J. R. Lawson;M. G. Roberts

  • Hydatidosis and Cysticercosis: The Dynamics of Transmission

    Unknown

  • Population dynamics in echinococcosis and cysticercosis: mathematical model of the life-cycles of Taenia hydatigena and T. ovis

    M. G. Roberts;J. R. Lawson;M. A. Gemmell

  • Further evidence for the long distance dispersal of taeniid eggs.

    P.R. Torgerson;J. Pilkington;F.M.D. Gulland;M.A. Gemmell

  • Transmission of taeniid tapeworm eggs via blowflies to intermediate hosts

    J. R. Lawson;M. A. Gemmell

  • Control of echinococcosis/hydatidosis: present status of worldwide progress.

    M. A. Gemmell;J. R. Lawson;M. G. Roberts

  • HYDATID DISEASE IN AUSTRALIA

    Michael A. Gemmell

  • Transmission dynamics of Echinococcus granulosus, Taenia hydatigena and Taenia ovis in sheep in uruguay

    Unknown

  • The potential role of blowflies in the transmission of taeniid tapeworm eggs.

    J. R. Lawson;M. A. Gemmell

  • Towards global control of cystic and alveolar hydatid diseases

    M.A. Gemmell;J.R. Lawson;M.G. Roberts

  • Hydatid disease in Australia. VI. Observations on the Carnivora of New South Wales as definitive hosts of Echinococcus granulosus (Batsch, 1786), (Rudolphi, 1801), and their role in the spread of hydatidiasis in domestic animals.

    Michael A. Gemmell

  • Prevention of echinococcosis in humans and safety precautions.

    J. Eckert;B. Gottstein;D. Heath;F. J. Liu

  • Population dynamics in echinococcosis and cysticercosis: comparison of the response of Echinococcus granulosus, Taenia hydatigena and T. ovis to control

    M. A. Gemmell;J. R. Lawson;M. G. Roberts;B. R. Kerin

  • HYDATIDOSIS AND CYSTICERCOSIS

    M. A. Gemmell

  • Hydatid disease in Australia. III. Observations on the incidence and geographical distribution of hydatidiasis in sheep in New South Wales.

    M. A. Gemmell

  • Control of Echinococcus granulosus in Uruguay: evaluation of different treatment intervals for dogs.

    P.A Cabrera;S Lloyd;G Haran;L Pineyro

  • Control of echinococcosis.

    M. A. Gemmell;M. G. Roberts;T. C. Beard;S. Campano Diaz

Frequent Co-Authors

Johannes Eckert
Johannes Eckert University of Zurich
Paul R. Torgerson
Paul R. Torgerson University of Zurich
Peter Deplazes
Peter Deplazes University of Zurich
David Jenkins
David Jenkins Charles Sturt University
Philip S. Craig
Philip S. Craig University of Salford
Robin B. Gasser
Robin B. Gasser University of Melbourne
Marshall W. Lightowlers
Marshall W. Lightowlers University of Melbourne
Bruno Gottstein
Bruno Gottstein University of Bern

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Best Scientists Citing M. A. Gemmell