University, Subject, Country, Region, World
Bulgaria 5.090 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 6 years. As of Jan 31, 2025, the rankings are determined according to the Total H Index. BETA 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 (873.690) 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 IndexRankings
Ranking Based On Selection: 26
aeronomy and space physics
Metrics
H-Index
i10 Index
Citation Counts
48
101
5,628
* Total H IndexRankings
Ranking Based On Selection: 27
nonlinear PDEs
nonlinear time series analysis
nonlinear fluid dynamics
social dynamics
mathematical economics
Metrics
H-Index
i10 Index
Citation Counts
47
103
5,806
* Total H IndexRankings
Ranking Based On Selection: 28
Fluorescent dyes
Molecular sensors
Light Harvesting
Molucular Logic Gates
Metrics
H-Index
i10 Index
Citation Counts
47
104
5,399
* Total H IndexRankings
Ranking Based On Selection: 29
Solid fuels and their products
Metrics
H-Index
i10 Index
Citation Counts
45
67
14,539
* Total H IndexRankings
Ranking Based On Selection: 30
neuroscience
Metrics
H-Index
i10 Index
Citation Counts
45
86
6,941
* Total H IndexRankings
Ranking Based On Selection: 31
Metrics
H-Index
i10 Index
Citation Counts
44
107
11,351
* Total H IndexRankings
Ranking Based On Selection: 32
medicine
paediatrics
paediatric endocrinology
Metrics
H-Index
i10 Index
Citation Counts
43
103
10,695
* Total H IndexRankings
Ranking Based On Selection: 33
Biogenic volatile organic compounds
photosynthesis
Metrics
H-Index
i10 Index
Citation Counts
43
74
13,366
* Total H IndexRankings
Ranking Based On Selection: 34
dendrimers
dyes
fluorescent dyes
sensors
antimicrobial
Metrics
H-Index
i10 Index
Citation Counts
43
148
5,654
* Total H IndexRankings
Ranking Based On Selection: 35
General Surgery
Emergency Gen. Surgery
Surgical Oncology
Metrics
H-Index
i10 Index
Citation Counts
42
69
11,294
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* Total H IndexRankings
Ranking Based On Selection: 36
chemistry
Metrics
H-Index
i10 Index
Citation Counts
41
78
7,014
* Total H IndexRankings
Ranking Based On Selection: 37
Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
41
131
7,325
* Total H IndexRankings
Ranking Based On Selection: 38
quimica
engenharia quimica
materias
energia
Metrics
H-Index
i10 Index
Citation Counts
41
57
6,246
* Total H IndexRankings
Ranking Based On Selection: 39
bone marrow
stem cell
transplantation
oncoimmunology
Metrics
H-Index
i10 Index
Citation Counts
41
84
7,237
* Total H IndexRankings
Ranking Based On Selection: 40
Plant ecophysiology
Photosynthesis
Plant biology
Plant stress physiology
Metrics
H-Index
i10 Index
Citation Counts
41
67
5,939
* Total H IndexRankings
Ranking Based On Selection: 41
condensed matter physics
graphene
carbon nanotubes
Raman spectroscopy
Metrics
H-Index
i10 Index
Citation Counts
41
83
9,764
* Total H IndexRankings
Ranking Based On Selection: 42
Biotechnology
Enzymology
Metrics
H-Index
i10 Index
Citation Counts
40
95
6,819
* Total H IndexRankings
Ranking Based On Selection: 43
Plant Biotechnologies
Bioactive Substances
Bioprocess Engineering
Metrics
H-Index
i10 Index
Citation Counts
40
98
5,548
* Total H IndexRankings
Ranking Based On Selection: 44
coordination chemistry
Metrics
H-Index
i10 Index
Citation Counts
40
89
8,031
* Total H IndexRankings
Ranking Based On Selection: 45
Crystal Growth
Metrics
H-Index
i10 Index
Citation Counts
40
117
5,642
* Total H IndexRankings
Ranking Based On Selection: 46
ultrafast science
quantum correlations
time-dependent quantum Monte Carlo
Metrics
H-Index
i10 Index
Citation Counts
40
69
8,877
* Total H IndexRankings
Ranking Based On Selection: 47
биофизика
стрес и адаптация при растенията
математично моделиране
Metrics
H-Index
i10 Index
Citation Counts
39
73
8,924
* Total H IndexRankings
Ranking Based On Selection: 48
biogeochemistry
adsorption
redox
contaminant fate and transport
EXAFS
Metrics
H-Index
i10 Index
Citation Counts
39
70
5,934
* Total H IndexRankings
Ranking Based On Selection: 49
Powder XRD
Solid State Chemistry
Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
39
126
6,982
* Total H IndexRankings
Ranking Based On Selection: 50
Metrics
H-Index
i10 Index
Citation Counts
39
146
5,722
Dora Pancheva
Metrics
H-Index
i10-Index
Citation Counts
48
101
5,628
Nikolay K Vitanov
Metrics
H-Index
i10-Index
Citation Counts
47
103
5,806
nonlinear PDEs
nonlinear time series analysis
nonlinear fluid dynamics
social dynamics
mathematical economics
Vladimir Bojinov
Metrics
H-Index
i10-Index
Citation Counts
47
104
5,399
Fluorescent dyes
Molecular sensors
Light Harvesting
Molucular Logic Gates
Stanislav V. Vassilev
Metrics
H-Index
i10-Index
Citation Counts
45
67
14,539
Vasil Kolev
Metrics
H-Index
i10-Index
Citation Counts
45
86
6,941
Irini Doytchinova
Medical University Sofia
Sofia, Bulgaria
Metrics
H-Index
i10-Index
Citation Counts
44
107
11,351
Violeta Iotova
Metrics
H-Index
i10-Index
Citation Counts
43
103
10,695
medicine
paediatrics
paediatric endocrinology
Violeta Velikova
Metrics
H-Index
i10-Index
Citation Counts
43
74
13,366
Ivo Grabchev
Metrics
H-Index
i10-Index
Citation Counts
43
148
5,654
dendrimers
dyes
fluorescent dyes
sensors
antimicrobial
Boris E. Sakakushev
Medical University Plovdiv
Plovdiv, Bulgaria
Metrics
H-Index
i10-Index
Citation Counts
42
69
11,294
General Surgery
Emergency Gen. Surgery
Surgical Oncology
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Milena Popova
Metrics
H-Index
i10-Index
Citation Counts
41
78
7,014
Ivan Krastev
Metrics
H-Index
i10-Index
Citation Counts
41
131
7,325
Sonia Damyanova
Metrics
H-Index
i10-Index
Citation Counts
41
57
6,246
quimica
engenharia quimica
materias
energia
Igor Resnick
Metrics
H-Index
i10-Index
Citation Counts
41
84
7,237
Tsonko Tsonev
Metrics
H-Index
i10-Index
Citation Counts
41
67
5,939
Plant ecophysiology
Photosynthesis
Plant biology
Plant stress physiology
Valentin N. Popov
Metrics
H-Index
i10-Index
Citation Counts
41
83
9,764
condensed matter physics
graphene
carbon nanotubes
Raman spectroscopy
Albert Krastanov
Metrics
H-Index
i10-Index
Citation Counts
40
95
6,819
Atanas Pavlov
Metrics
H-Index
i10-Index
Citation Counts
40
98
5,548
Plant Biotechnologies
Bioactive Substances
Bioprocess Engineering
Irena Kostova
Medical University Sofia
Sofia, Bulgaria
Metrics
H-Index
i10-Index
Citation Counts
40
89
8,031
coordination chemistry
Marin Gospodinov
Metrics
H-Index
i10-Index
Citation Counts
40
117
5,642
Ivan P. Christov
Metrics
H-Index
i10-Index
Citation Counts
40
69
8,877
ultrafast science
quantum correlations
time-dependent quantum Monte Carlo
Василий Голцев
Metrics
H-Index
i10-Index
Citation Counts
39
73
8,924
биофизика
стрес и адаптация при растенията
математично моделиране
Maxim Boyanov
Metrics
H-Index
i10-Index
Citation Counts
39
70
5,934
biogeochemistry
adsorption
redox
contaminant fate and transport
EXAFS
Daniela Kovacheva
Metrics
H-Index
i10-Index
Citation Counts
39
126
6,982
Powder XRD
Solid State Chemistry
Nanomaterials
I Ivanov
Metrics
H-Index
i10-Index
Citation Counts
39
146
5,722