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World Scientist and University Rankings 2026

Ghana Others 2.787 Scientists Subject Rankings

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 yearsAs of Jan 01, 2026, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.752) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H Index Rankings

Rankings

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69,362
World Rank
13
Country Rank
1
University
Ranking Based On Selection:
1
Others
Child psychology/ memory/ learning

H-Index Metrics

  • H-Index
    56
  • i10 Index
    196
  • Citation Counts
    12,563
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* Total H Index Rankings

Rankings

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101,430
World Rank
26
Country Rank
1
University
Ranking Based On Selection:
2
Others
Reproductive Health | Disability Studies | Maternal & Child Health | Violence | Social Epidemiolog

H-Index Metrics

  • H-Index
    48
  • i10 Index
    268
  • Citation Counts
    10,391
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* Total H Index Rankings

Rankings

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108,204
World Rank
30
Country Rank
3
University
Ranking Based On Selection:
3
Others
Environmental Change | Pollution | Human Health | Multivariate Statistics | Systems Analysis..

H-Index Metrics

  • H-Index
    47
  • i10 Index
    107
  • Citation Counts
    6,828
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* Total H Index Rankings

Rankings

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124,484
World Rank
32
Country Rank
1
University
Ranking Based On Selection:
4
Others
Psycholo-oncology | Public Mental Health | Health Literacy | Work Addictio

H-Index Metrics

  • H-Index
    45
  • i10 Index
    69
  • Citation Counts
    22,408
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* Total H Index Rankings

Rankings

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181,806
World Rank
61
Country Rank
1
University
Ranking Based On Selection:
5
Others
Global Surgery | Hernia Surgery

H-Index Metrics

  • H-Index
    37
  • i10 Index
    63
  • Citation Counts
    9,894
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* Total H Index Rankings

Rankings

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186,484
World Rank
69
Country Rank
5
University
Ranking Based On Selection:
6
Others
Pharmacology | Toxicology and Pharmaceutics

H-Index Metrics

  • H-Index
    37
  • i10 Index
    78
  • Citation Counts
    4,092
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* Total H Index Rankings

Rankings

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197,197
World Rank
75
Country Rank
1
University
Ranking Based On Selection:
7
Others
Health care financing. Equity and Efficiency in health car

H-Index Metrics

  • H-Index
    36
  • i10 Index
    51
  • Citation Counts
    4,534
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* Total H Index Rankings

Rankings

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203,908
World Rank
80
Country Rank
3
University
Ranking Based On Selection:
8
Others
Development Finance | Econometrics | Macroeconomics

H-Index Metrics

  • H-Index
    35
  • i10 Index
    49
  • Citation Counts
    4,289
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* Total H Index Rankings

Rankings

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204,408
World Rank
81
Country Rank
6
University
Ranking Based On Selection:
9
Others
Epidemiology | Data Science | Environmental Health | Nutrition | Air Pollution

H-Index Metrics

  • H-Index
    35
  • i10 Index
    54
  • Citation Counts
    50,185
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* Total H Index Rankings

Rankings

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231,826
World Rank
112
Country Rank
9
University
Ranking Based On Selection:
10
Others
Sexual and Reproductive Health | HIV and AIDS/Tuberculosi

H-Index Metrics

  • H-Index
    33
  • i10 Index
    61
  • Citation Counts
    3,434
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* Total H Index Rankings

Rankings

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242,183
World Rank
117
Country Rank
2
University
Ranking Based On Selection:
11
Others
General relativity

H-Index Metrics

  • H-Index
    32
  • i10 Index
    60
  • Citation Counts
    3,908
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* Total H Index Rankings

Rankings

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286,052
World Rank
143
Country Rank
8
University
Ranking Based On Selection:
12
Others
Neuropharmacology

H-Index Metrics

  • H-Index
    30
  • i10 Index
    51
  • Citation Counts
    2,756
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* Total H Index Rankings

Rankings

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288,857
World Rank
151
Country Rank
1
University
Ranking Based On Selection:
13
Others
Applied Microeconomics | Energy economics and Impact evaluation

H-Index Metrics

  • H-Index
    29
  • i10 Index
    50
  • Citation Counts
    3,112
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* Total H Index Rankings

Rankings

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305,745
World Rank
177
Country Rank
1
University
Ranking Based On Selection:
14
Others
Postharvest Biocontrol and Food Safet

H-Index Metrics

  • H-Index
    28
  • i10 Index
    43
  • Citation Counts
    2,664
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* Total H Index Rankings

Rankings

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310,039
World Rank
183
Country Rank
1
University
Ranking Based On Selection:
15
Others
Mental and Environmental Healt

H-Index Metrics

  • H-Index
    28
  • i10 Index
    44
  • Citation Counts
    2,712
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* Total H Index Rankings

Rankings

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312,918
World Rank
188
Country Rank
12
University
Ranking Based On Selection:
16
Others
soil and water conservtion | education | irrigation | biodiversity

H-Index Metrics

  • H-Index
    28
  • i10 Index
    52
  • Citation Counts
    2,351
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* Total H Index Rankings

Rankings

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359,545
World Rank
224
Country Rank
1
University
Ranking Based On Selection:
17
Others
conflicts | Africa | hybridity | ECOWAS | A

H-Index Metrics

  • H-Index
    26
  • i10 Index
    60
  • Citation Counts
    2,559
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* Total H Index Rankings

Rankings

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375,123
World Rank
240
Country Rank
60
University
Ranking Based On Selection:
18
Others
Water Resources | Hydrology | Hydraulics | Climate Chang

H-Index Metrics

  • H-Index
    25
  • i10 Index
    56
  • Citation Counts
    2,265
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* Total H Index Rankings

Rankings

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390,220
World Rank
246
Country Rank
86
University
Ranking Based On Selection:
19
Others
Maternal (Mental) Health | Child and adolescent (Mental Health) | Climate Change and Healt

H-Index Metrics

  • H-Index
    24
  • i10 Index
    52
  • Citation Counts
    1,670
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* Total H Index Rankings

Rankings

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414,188
World Rank
270
Country Rank
71
University
Ranking Based On Selection:
20
Others
maternal and child health | respectful maternal care | contraceptive car

H-Index Metrics

  • H-Index
    23
  • i10 Index
    37
  • Citation Counts
    1,575
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* Total H Index Rankings

Rankings

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414,259
World Rank
272
Country Rank
2
University
Ranking Based On Selection:
21
Others
Cardiovascular and nutrition epidemiology | implementation science and clinical trial

H-Index Metrics

  • H-Index
    23
  • i10 Index
    36
  • Citation Counts
    1,793
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* Total H Index Rankings

Rankings

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421,374
World Rank
289
Country Rank
2
University
Ranking Based On Selection:
22
Others
Gold beneficiation | Hydrometallurgy | Microwave processing of minerals | Small scale minin

H-Index Metrics

  • H-Index
    23
  • i10 Index
    40
  • Citation Counts
    2,050
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* Total H Index Rankings

Rankings

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421,398
World Rank
290
Country Rank
3
University
Ranking Based On Selection:
23
Others
Health information Management | Epidemiology | Monitoring and Evaluatio

H-Index Metrics

  • H-Index
    23
  • i10 Index
    40
  • Citation Counts
    1,764
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* Total H Index Rankings

Rankings

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443,142
World Rank
313
Country Rank
35
University
Ranking Based On Selection:
24
Others
Health Promotion | Climate Change and Health | Psychosocial Safety Climat

H-Index Metrics

  • H-Index
    22
  • i10 Index
    38
  • Citation Counts
    1,377
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* Total H Index Rankings

Rankings

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446,983
World Rank
319
Country Rank
2
University
Ranking Based On Selection:
25
Others
Fermentation Engineering & Antioxidant activitie

H-Index Metrics

  • H-Index
    22
  • i10 Index
    32
  • Citation Counts
    1,746
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