Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 2.395 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 26
Genetic Toxicology
Health System
Hepatitis C
NCDs
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,738
1,361
0.202
* Total Citation Counts Rankings
Ranking Based On Selection: 27
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,332
2,918
0.461
* Total Citation Counts Rankings
Ranking Based On Selection: 28
Chemistry of heterocyclic compounds
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,165
2,873
0.466
* Total Citation Counts Rankings
Ranking Based On Selection: 29
Artificial Intelligence
Data Mining
Data base
software engineering
image processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,026
4,314
0.716
* Total Citation Counts Rankings
Ranking Based On Selection: 30
metallurgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,730
1,404
0.245
* Total Citation Counts Rankings
Ranking Based On Selection: 31
Biochemistry
Immunology
Molecular Biology
Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,666
2,800
0.494
* Total Citation Counts Rankings
Ranking Based On Selection: 32
Pediatric Allergy and Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,623
3,176
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 33
النحو والصرف والعروض
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,524
1,812
0.328
* Total Citation Counts Rankings
Ranking Based On Selection: 34
Organic Chemistry
Heterocyclic Synthesis
Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,477
2,970
0.542
* Total Citation Counts Rankings
Ranking Based On Selection: 35
Diagnosis of Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,148
4,055
0.788
* Total Citation Counts Rankings
Ranking Based On Selection: 36
Pediatric Hematology and Oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,096
1,980
0.389
* Total Citation Counts Rankings
Ranking Based On Selection: 37
Distributed Generation Planning
Distribution System Protection
Electricity Market
and Renewable
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,918
1,251
0.254
* Total Citation Counts Rankings
Ranking Based On Selection: 38
Inorganic chemistry
nanochemistry
environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,917
2,938
0.598
* Total Citation Counts Rankings
Ranking Based On Selection: 39
Drugs and Gene Delivery
Nanomedicine
Pharmaceutical Sciences
Bioinformatics & Chemoinformatics
Colloidal systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,863
3,183
0.655
* Total Citation Counts Rankings
Ranking Based On Selection: 40
Artificial intelligence
image processing
signal processing
simulation and modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,859
2,876
0.592
* Total Citation Counts Rankings
Ranking Based On Selection: 41
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,854
3,723
0.767
* Total Citation Counts Rankings
Ranking Based On Selection: 42
Soil quality
Biochar
Environmental Soil Science
Soil fertility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,757
4,546
0.956
* Total Citation Counts Rankings
Ranking Based On Selection: 43
Protein Delivery
Targeted delivery systems
nanotechnology
Biopharmaceutics and Pharmacokinetics
Design of experiment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,744
2,139
0.451
* Total Citation Counts Rankings
Ranking Based On Selection: 44
Cardiovascular Surgery
Public Health
Population
Women Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,738
605
0.128
* Total Citation Counts Rankings
Ranking Based On Selection: 45
pharmaceutical and medicinal chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,671
2,750
0.589
* Total Citation Counts Rankings
Ranking Based On Selection: 46
electrochemistry
corrosion
semiconductor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,667
1,816
0.389
* Total Citation Counts Rankings
Ranking Based On Selection: 47
sociology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,207
3,222
0.766
* Total Citation Counts Rankings
Ranking Based On Selection: 48
Pharmacology & Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,176
2,285
0.547
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Electronics
Electronics for Communications
Photovoltaic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,117
3,147
0.764
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Physiology of environmental stresses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,997
1,547
0.387
* Total Citation Counts Rankings
Rankings
155,275
259
26
Ranking Based On Selection: 26
Wagida Anwar
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,738
1,361
0.202
Genetic Toxicology
Health System
Hepatitis C
NCDs
Public Health
* Total Citation Counts Rankings
Rankings
165,558
278
27
Ranking Based On Selection: 27
MF El Shahat
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,332
2,918
0.461
* Total Citation Counts Rankings
Rankings
169,970
289
28
Ranking Based On Selection: 28
Magdy Ahmed Ibrahim
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,165
2,873
0.466
Chemistry of heterocyclic compounds
* Total Citation Counts Rankings
Rankings
173,937
300
29
Ranking Based On Selection: 29
Hoda K Mohamed
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,026
4,314
0.716
Artificial Intelligence
Data Mining
Data base
software engineering
image processing
* Total Citation Counts Rankings
Rankings
182,932
331
30
Ranking Based On Selection: 30
Eslam Salama
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,730
1,404
0.245
* Total Citation Counts Rankings
Rankings
184,950
334
31
Ranking Based On Selection: 31
Ahmed M Salem
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,666
2,800
0.494
Biochemistry
Immunology
Molecular Biology
Biotechnology
* Total Citation Counts Rankings
Rankings
186,291
338
32
Ranking Based On Selection: 32
Elham Hossny
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,623
3,176
0.565
Pediatric Allergy and Immunology
* Total Citation Counts Rankings
Rankings
189,510
348
33
Ranking Based On Selection: 33
Shereen Ashmawy
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,524
1,812
0.328
* Total Citation Counts Rankings
Rankings
191,081
352
34
Ranking Based On Selection: 34
Ahmed I Hashem
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,477
2,970
0.542
Organic Chemistry
Heterocyclic Synthesis
Medicinal Chemistry
* Total Citation Counts Rankings
Rankings
203,030
382
35
Ranking Based On Selection: 35
MS Attia
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,148
4,055
0.788
* Total Citation Counts Rankings
Rankings
205,102
392
36
Ranking Based On Selection: 36
Mohsen Saleh Elalfy
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,096
1,980
0.389
Pediatric Hematology and Oncology
* Total Citation Counts Rankings
Rankings
212,269
410
37
Ranking Based On Selection: 37
Walid El Khattam
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,918
1,251
0.254
Distributed Generation Planning
Distribution System Protection
Electricity Market
and Renewable
* Total Citation Counts Rankings
Rankings
212,288
411
38
Ranking Based On Selection: 38
Mostafa MH Khalil
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,917
2,938
0.598
Inorganic chemistry
nanochemistry
environmental
* Total Citation Counts Rankings
Rankings
214,564
420
39
Ranking Based On Selection: 39
Rania Hathout
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,863
3,183
0.655
Drugs and Gene Delivery
Nanomedicine
Pharmaceutical Sciences
Bioinformatics & Chemoinformatics
Colloidal systems
* Total Citation Counts Rankings
Rankings
214,730
421
40
Ranking Based On Selection: 40
Mohamed Fahmy Tolba
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,859
2,876
0.592
Artificial intelligence
image processing
signal processing
simulation and modelling
* Total Citation Counts Rankings
Rankings
214,950
422
41
Ranking Based On Selection: 41
Maha Nasr
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,854
3,723
0.767
* Total Citation Counts Rankings
Rankings
219,056
437
42
Ranking Based On Selection: 42
Ali El Naggar
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,757
4,546
0.956
Soil quality
Biochar
Environmental Soil Science
Soil fertility
* Total Citation Counts Rankings
Rankings
219,681
441
43
Ranking Based On Selection: 43
Nahed Mortada
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,744
2,139
0.451
Protein Delivery
Targeted delivery systems
nanotechnology
Biopharmaceutics and Pharmacokinetics
Design of experiment
* Total Citation Counts Rankings
Rankings
219,926
443
44
Ranking Based On Selection: 44
Ismail Sallam
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,738
605
0.128
Cardiovascular Surgery
Public Health
Population
Women Health
* Total Citation Counts Rankings
Rankings
222,846
451
45
Ranking Based On Selection: 45
Khaled Abouzid
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,671
2,750
0.589
pharmaceutical and medicinal chemistry
* Total Citation Counts Rankings
Rankings
223,053
452
46
Ranking Based On Selection: 46
Hamdy H Hassan|Hassan, H.H
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,667
1,816
0.389
electrochemistry
corrosion
semiconductor
* Total Citation Counts Rankings
Rankings
245,510
518
47
Ranking Based On Selection: 47
Aliaa Shokry
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,207
3,222
0.766
* Total Citation Counts Rankings
Rankings
247,232
526
48
Ranking Based On Selection: 48
Ebtehal El Demerdash
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,176
2,285
0.547
Pharmacology & Toxicology
* Total Citation Counts Rankings
Rankings
250,462
544
49
Ranking Based On Selection: 49
Abdelhalim Zekry
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,117
3,147
0.764
Electronics
Electronics for Communications
Photovoltaic
* Total Citation Counts Rankings
Rankings
257,360
573
50
Ranking Based On Selection: 50
MMF Mansour
Ain Shams University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,997
1,547
0.387
Physiology of environmental stresses