World Scientist and University Rankings 2025

Bulgaria Others 1.876 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 yearsAs of Feb 02, 2025, 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 (870.053) 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: 2
Nikolai Denkov
foams
antifoams
rheology
surfactants
Metrics
H-Index
i10 Index
Citation Counts
72
174
18,977
* Total H IndexRankings
Ranking Based On Selection: 3
Dimo Kashchiev
Nucleation and Growth of New Phases
Metrics
H-Index
i10 Index
Citation Counts
49
99
11,851
* Total H IndexRankings
Ranking Based On Selection: 4
Irini Doytchinova
Metrics
H-Index
i10 Index
Citation Counts
44
107
11,351
* Total H IndexRankings
Ranking Based On Selection: 5
Violeta Velikova
Biogenic volatile organic compounds
photosynthesis
Metrics
H-Index
i10 Index
Citation Counts
43
74
13,366
* Total H IndexRankings
Ranking Based On Selection: 6
Igor Resnick
bone marrow
stem cell
transplantation
oncoimmunology
Metrics
H-Index
i10 Index
Citation Counts
41
84
7,237
* Total H IndexRankings
Ranking Based On Selection: 8
Boris Tenchov
Metrics
H-Index
i10 Index
Citation Counts
38
81
4,018
* Total H IndexRankings
Ranking Based On Selection: 9
ivan dimov
Monte Carlo methods
Parallel algorithms
Mathematical modeling
Metrics
H-Index
i10 Index
Citation Counts
36
115
4,636
* Total H IndexRankings
Ranking Based On Selection: 10
Najdenski Hristo
infectious microbiology
Metrics
H-Index
i10 Index
Citation Counts
35
77
4,283

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* Total H IndexRankings
Ranking Based On Selection: 11
Dora Karagiozova
Solid mechanics
Behaviour of inelastic structures subjected to blast and impact
Stress wave propagation
Mechanical properties
Metrics
H-Index
i10 Index
Citation Counts
35
67
4,144
* Total H IndexRankings
Ranking Based On Selection: 12
Hristo Hinkov
mental health
health care systems
ethics
epidemiology
Metrics
H-Index
i10 Index
Citation Counts
33
40
9,486
* Total H IndexRankings
Ranking Based On Selection: 13
Christo B. Tsvetanov
Poly(alkylene oxides) - Controlled Polymerization Methods - Water soluble polymers - gels and cryogels - Responsive polymers
Na
Metrics
H-Index
i10 Index
Citation Counts
33
108
4,704
* Total H IndexRankings
Ranking Based On Selection: 14
Katya Georgieva
photosynthesis
abiotic stress
chlorophyll fluorescence
resurrection plants
Metrics
H-Index
i10 Index
Citation Counts
32
61
2,768
* Total H IndexRankings
Ranking Based On Selection: 15
Christina Grupcheva
cornea
in vivo confocal microscopy
UV
Metrics
H-Index
i10 Index
Citation Counts
32
47
2,893
* Total H IndexRankings
Ranking Based On Selection: 17
Zdravko Kamenov
Metrics
H-Index
i10 Index
Citation Counts
30
78
4,406
* Total H IndexRankings
Ranking Based On Selection: 18
Mariana Petrova Мариана Петрова|М.М.Петрова
IT&Security
Management IT processes project&services
Innovation
Digitalization
Start-Up
Metrics
H-Index
i10 Index
Citation Counts
29
72
2,531
* Total H IndexRankings
Ranking Based On Selection: 19
Andrey Ivanov
паразитни болести по животните и човека
Metrics
H-Index
i10 Index
Citation Counts
29
74
4,193
* Total H IndexRankings
Ranking Based On Selection: 20
Iva Christova
микробиология
Metrics
H-Index
i10 Index
Citation Counts
29
56
3,099
* Total H IndexRankings
Ranking Based On Selection: 21
Vasko Idakiev
хетерогенен катализ
Metrics
H-Index
i10 Index
Citation Counts
29
41
4,264
* Total H IndexRankings
Ranking Based On Selection: 23
Asen Rahnev|Assen Rakhnev, Asen Rachnev
Informatics
e-Learning
Near-rings
Education
Metrics
H-Index
i10 Index
Citation Counts
28
98
3,085
* Total H IndexRankings
Ranking Based On Selection: 24
Georgi Tyuliev
surface science
Metrics
H-Index
i10 Index
Citation Counts
28
52
2,527
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
V Bankova
Metrics
H-Index
i10-Index
Citation Counts
79
193
25,948
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Nikolai Denkov
Metrics
H-Index
i10-Index
Citation Counts
72
174
18,977
foams
antifoams
rheology
surfactants
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Dimo Kashchiev
Metrics
H-Index
i10-Index
Citation Counts
49
99
11,851
Nucleation and Growth of New Phases
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Irini Doytchinova
Metrics
H-Index
i10-Index
Citation Counts
44
107
11,351
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Biogenic volatile organic compounds
photosynthesis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Igor Resnick
Metrics
H-Index
i10-Index
Citation Counts
41
84
7,237
bone marrow
stem cell
transplantation
oncoimmunology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Marin Gospodinov
Metrics
H-Index
i10-Index
Citation Counts
40
117
5,642
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Boris Tenchov
Metrics
H-Index
i10-Index
Citation Counts
38
81
4,018
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
ivan dimov
Metrics
H-Index
i10-Index
Citation Counts
36
115
4,636
Monte Carlo methods
Parallel algorithms
Mathematical modeling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Najdenski Hristo
Metrics
H-Index
i10-Index
Citation Counts
35
77
4,283
infectious microbiology

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Dora Karagiozova
Metrics
H-Index
i10-Index
Citation Counts
35
67
4,144
Solid mechanics
Behaviour of inelastic structures subjected to blast and impact
Stress wave propagation
Mechanical properties
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Hristo Hinkov
Metrics
H-Index
i10-Index
Citation Counts
33
40
9,486
mental health
health care systems
ethics
epidemiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Christo B. Tsvetanov
Metrics
H-Index
i10-Index
Citation Counts
33
108
4,704
Poly(alkylene oxides) - Controlled Polymerization Methods - Water soluble polymers - gels and cryogels - Responsive polymers
Na
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
photosynthesis
abiotic stress
chlorophyll fluorescence
resurrection plants
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Christina Grupcheva
Metrics
H-Index
i10-Index
Citation Counts
32
47
2,893
cornea
in vivo confocal microscopy
UV
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Theoretical and mathematical physics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Zdravko Kamenov
Metrics
H-Index
i10-Index
Citation Counts
30
78
4,406
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
IT&Security
Management IT processes project&services
Innovation
Digitalization
Start-Up
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Andrey Ivanov
Metrics
H-Index
i10-Index
Citation Counts
29
74
4,193
паразитни болести по животните и човека
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Iva Christova
Metrics
H-Index
i10-Index
Citation Counts
29
56
3,099
микробиология
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Vasko Idakiev
Metrics
H-Index
i10-Index
Citation Counts
29
41
4,264
хетерогенен катализ
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Galina Vankova-Kirilova
Metrics
H-Index
i10-Index
Citation Counts
28
46
3,083
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Asen Rahnev|Assen Rakhnev, Asen Rachnev
Metrics
H-Index
i10-Index
Citation Counts
28
98
3,085
Informatics
e-Learning
Near-rings
Education
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Georgi Tyuliev
Metrics
H-Index
i10-Index
Citation Counts
28
52
2,527
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
DD Dimitrova ДД Димитрова
Metrics
H-Index
i10-Index
Citation Counts
27
47
5,403