Citation Rankings
Highly Cited Researchers
Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) 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: 1
Natural science/Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,253
11,872
0.688
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,565
10,255
0.704
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Histology
cell biology
histochemistry
immunohistochemistry
embryology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,546
6,215
0.538
* Total Citation Counts Rankings
Ranking Based On Selection: 4
hyperspectral imaging
Imaging spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,017
4,074
0.452
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Nucleic Acid Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,353
4,068
0.553
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental toxicology
risk assessment
life cycle analysis
persistent organic pollutants
integrated ecosystem assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,274
3,863
0.531
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Microbial Ecology
Microbial Taxonomy
Microbial Physiology
Microbial Genetics
Microbial-plant interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,225
4,715
0.653
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Nanoanalytical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,949
4,682
0.787
* Total Citation Counts Rankings
Ranking Based On Selection: 9
clinical biochemistry
non-communicable diseases
natural products
drug discovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,747
5,424
0.944
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Abiotic Stress Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,621
5,474
0.974
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Medical Microbiology
Bacteriology
Immunology
Mycology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,012
4,896
0.977
* Total Citation Counts Rankings
Ranking Based On Selection: 12
organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,992
3,464
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Nanocomposite Materials
light metal
Coatings & corrosion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,808
3,336
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 14
neurosurgery
Medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,717
1,715
0.364
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Biological Oceanography
Aquatic Pollution
Coastal Zone
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,557
4,310
0.946
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Urology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,466
1,205
0.270
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Properties and Strength of Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,438
4,257
0.959
* Total Citation Counts Rankings
Ranking Based On Selection: 18
power system optimization
transmission and distribution operation and planning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,396
4,196
0.955
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Agricultural stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,137
3,004
0.726
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Biomaterials
Nanomaterials
electrocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,130
2,373
0.575
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Microbiology
Immunology
Proteomics
Bioinformatics
Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,997
3,329
0.833
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Numerical Analysis
Computational Fluid Dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,763
1,178
0.313
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Medical education
Hypertension
Endothelium-derived Factors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,431
1,016
0.296
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,395
2,411
0.710
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Biochar
Composting
Carbon Sequestration
Climate Change Mitigation
Plant and Soil Ecosystem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,233
2,569
0.795
* Total Citation Counts Rankings
Rankings
49,645
59
1
Ranking Based On Selection: 1
Waleed E. Mahmoud
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,253
11,872
0.688
* Total Citation Counts Rankings
Rankings
62,098
75
2
Ranking Based On Selection: 2
Safwat A Ahmed
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,565
10,255
0.704
Pharmacognosy
isolation and identification of biologically active leads from natural sources
microbial metabolism and semisyn
* Total Citation Counts Rankings
Rankings
83,235
114
3
Ranking Based On Selection: 3
Abd El-Hamid Osman
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,546
6,215
0.538
Histology
cell biology
histochemistry
immunohistochemistry
embryology
* Total Citation Counts Rankings
Rankings
110,815
159
4
Ranking Based On Selection: 4
Gamal Elmasry
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,017
4,074
0.452
hyperspectral imaging
Imaging spectroscopy
* Total Citation Counts Rankings
Rankings
138,887
219
1
Ranking Based On Selection: 5
Afaf El-Sagheer
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,353
4,068
0.553
* Total Citation Counts Rankings
Rankings
140,506
223
5
Ranking Based On Selection: 6
Mohamed Tawfic Ahmed
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,274
3,863
0.531
Environmental toxicology
risk assessment
life cycle analysis
persistent organic pollutants
integrated ecosystem assessment
* Total Citation Counts Rankings
Rankings
141,525
227
6
Ranking Based On Selection: 7
Microbial Biosystems
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,225
4,715
0.653
Microbial Ecology
Microbial Taxonomy
Microbial Physiology
Microbial Genetics
Microbial-plant interactions
* Total Citation Counts Rankings
Rankings
172,840
294
2
Ranking Based On Selection: 8
Ahmed Shahat Ahmed|A. Shahat, Ahmed Shahat Ahmed
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,949
4,682
0.787
* Total Citation Counts Rankings
Rankings
178,835
316
7
Ranking Based On Selection: 9
Amin Ibrahim
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,747
5,424
0.944
clinical biochemistry
non-communicable diseases
natural products
drug discovery
* Total Citation Counts Rankings
Rankings
182,900
330
8
Ranking Based On Selection: 10
Amr el Kelish
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,621
5,474
0.974
* Total Citation Counts Rankings
Rankings
204,403
381
9
Ranking Based On Selection: 11
Abdelazeem Mohamed Algammal
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,012
4,896
0.977
Medical Microbiology
Bacteriology
Immunology
Mycology
* Total Citation Counts Rankings
Rankings
205,256
390
3
Ranking Based On Selection: 12
Mohamed Soliman
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,992
3,464
0.694
* Total Citation Counts Rankings
Rankings
212,831
411
4
Ranking Based On Selection: 13
AMA Mohamed
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,808
3,336
0.694
Nanocomposite Materials
light metal
Coatings & corrosion
* Total Citation Counts Rankings
Rankings
216,719
424
10
Ranking Based On Selection: 14
Khalil Nabil H
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,717
1,715
0.364
neurosurgery
Medical education
* Total Citation Counts Rankings
Rankings
223,693
448
5
Ranking Based On Selection: 15
Elham Ali
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,557
4,310
0.946
Biological Oceanography
Aquatic Pollution
Coastal Zone
Remote Sensing
* Total Citation Counts Rankings
Rankings
228,060
465
11
Ranking Based On Selection: 16
Ahmed El Sakka
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,466
1,205
0.270
* Total Citation Counts Rankings
Rankings
229,421
469
6
Ranking Based On Selection: 17
Mohamed Amin Sherif
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,438
4,257
0.959
Properties and Strength of Materials
* Total Citation Counts Rankings
Rankings
231,386
481
7
Ranking Based On Selection: 18
Abdullah M. Shaheen
Suez University
Suez Governorate, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,396
4,196
0.955
power system optimization
transmission and distribution operation and planning
* Total Citation Counts Rankings
Rankings
244,698
513
12
Ranking Based On Selection: 19
Salah El-Hendawy
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,137
3,004
0.726
* Total Citation Counts Rankings
Rankings
245,093
514
13
Ranking Based On Selection: 20
Nasser Y. Mostafa
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,130
2,373
0.575
Biomaterials
Nanomaterials
electrocatalysis
* Total Citation Counts Rankings
Rankings
252,613
540
14
Ranking Based On Selection: 21
Shymaa Enany
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,997
3,329
0.833
Microbiology
Immunology
Proteomics
Bioinformatics
Genomics
* Total Citation Counts Rankings
Rankings
266,370
603
15
Ranking Based On Selection: 22
AA Soliman
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,763
1,178
0.313
Numerical Analysis
Computational Fluid Dynamics
* Total Citation Counts Rankings
Rankings
288,390
685
16
Ranking Based On Selection: 23
Salah Eldin Kassab
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,431
1,016
0.296
Medical education
Hypertension
Endothelium-derived Factors
* Total Citation Counts Rankings
Rankings
290,974
693
17
Ranking Based On Selection: 24
El Sayed Khafagy
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,395
2,411
0.710
* Total Citation Counts Rankings
Rankings
303,347
740
18
Ranking Based On Selection: 25
Yasser Mahmoud Awad
Suez Canal University
Ismailia, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,233
2,569
0.795
Biochar
Composting
Carbon Sequestration
Climate Change Mitigation
Plant and Soil Ecosystem