World

Citation Rankings
Highly Cited Researchers

Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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.

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Total 129 scientist
* Last 6 Years Citation Counts Rankings
World Rank
198,550
Country Rank
542
Institution Rank: 1
Ranking Based On Selection: 1
Egypt
Hesham Fa Hamed
Hesham Fa Hamed
Egyptian Russian University
Cairo , Egypt
Engineering & Technology / Electrical & Electronic Engineering
Electronics Eng.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,128
2,636
0.843
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
245,708
Country Rank
745
Institution Rank: 2
Ranking Based On Selection: 2
Egypt
MA Morsi|M. A. Morsi
MA Morsi|M. A. Morsi
Egyptian Russian University
Cairo , Egypt
Natural Sciences / Physics
Solid State Physics
Nanotechnology
Polymer Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,229
2,147
0.963
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
431,409
Country Rank
1,670
Institution Rank: 3
Ranking Based On Selection: 3
Egypt
Hossam S El Sawy
Hossam S El Sawy
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutics
Nanomedicine
Formulation/Dosage Form Design
Drug Delivery
Pharmaceutical Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,200
1,145
0.954
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
439,446
Country Rank
1,722
Institution Rank: 4
Ranking Based On Selection: 4
Egypt
Hany S Ibrahim
Hany S Ibrahim
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
PROTACs
Carbonic anhydrase
Kinases
Histone deacetylases
Degraders
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,401
1,118
0.798
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
492,451
Country Rank
2,043
Institution Rank: 5
Ranking Based On Selection: 5
Egypt
Mahmoud F Abo Ashour
Mahmoud F Abo Ashour
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
959
0.960
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
595,765
Country Rank
2,846
Institution Rank: 6
Ranking Based On Selection: 6
Egypt
Aly Saeed
Aly Saeed
Egyptian Russian University
Cairo , Egypt
Engineering & Technology / Metallurgical & Materials Engineering
Physics
Materials Science
Photonics Materials
Materials for Nuclear Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
850
720
0.847
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
633,133
Country Rank
3,180
Institution Rank: 7
Ranking Based On Selection: 7
Egypt
Hany Ibrahim
Hany Ibrahim
Egyptian Russian University
Cairo , Egypt
Natural Sciences / Chemical Sciences
Pharmaceutical analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,188
649
0.546
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,013,168
Country Rank
6,742
Institution Rank: 8
Ranking Based On Selection: 8
Egypt
Ahmad Ga Khater
Ahmad Ga Khater
Egyptian Russian University
Cairo , Egypt
Others
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
260
0.992
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,020,242
Country Rank
6,841
Institution Rank: 9
Ranking Based On Selection: 9
Egypt
Ahmed M Atwa
Ahmed M Atwa
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacology and Toxicology
Neuroscience
Nephrotoxicity
Hepatotoxicity
Molecular Science
Oxidative stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
256
0.992
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,044,243
Country Rank
7,131
Institution Rank: 10
Ranking Based On Selection: 10
Egypt
Mohamed A. Sayed|Mohamed A. Said
Mohamed A. Sayed|Mohamed A. Said
Egyptian Russian University
Cairo , Egypt
Natural Sciences / Chemical Sciences
Medicinal chemistry
Organic chemistry
Drug design
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
252
243
0.964
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,056,126
Country Rank
7,280
Institution Rank: 11
Ranking Based On Selection: 11
Egypt
Khaled Attala
Khaled Attala
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutical analysis and computational chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
237
1.000
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,063,605
Country Rank
7,371
Institution Rank: 12
Ranking Based On Selection: 12
Egypt
Mayar Ayad
Mayar Ayad
Egyptian Russian University
Cairo , Egypt
Others
medicinal chemisrty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
252
233
0.925
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,069,812
Country Rank
7,465
Institution Rank: 13
Ranking Based On Selection: 13
Egypt
Eslam S. Youssef
Eslam S. Youssef
Egyptian Russian University
Cairo , Egypt
Natural Sciences / Mathematical Sciences
Numerical analysis
Computational methods
Differential equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
235
230
0.979
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,107,546
Country Rank
7,981
Institution Rank: 14
Ranking Based On Selection: 14
Egypt
Dalia A. El-Damasy
Dalia A. El-Damasy
Egyptian Russian University
Cairo , Egypt
Others
Microbiology and Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
219
212
0.968
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,111,720
Country Rank
8,029
Institution Rank: 15
Ranking Based On Selection: 15
Egypt
Michael Gamal Fawzy
Michael Gamal Fawzy
Egyptian Russian University
Cairo , Egypt
Others
Spectroscopy
FTIR
Chromatography
LC-MS/MS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
224
210
0.938
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,170,722
Country Rank
8,871
Institution Rank: 16
Ranking Based On Selection: 16
Egypt
Ahmed Mostafa Reda
Ahmed Mostafa Reda
Egyptian Russian University
Cairo , Egypt
Others
microDNA
Oxidative stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
223
185
0.830
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,174,226
Country Rank
8,943
Institution Rank: 17
Ranking Based On Selection: 17
Egypt
Aya Tarek
Aya Tarek
Egyptian Russian University
Cairo , Egypt
Others
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
184
1.000
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,212,812
Country Rank
9,548
Institution Rank: 18
Ranking Based On Selection: 18
Egypt
Ali Sharawy
Ali Sharawy
Egyptian Russian University
Cairo , Egypt
Others
الاحصاء
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
219
169
0.772
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,221,681
Country Rank
9,677
Institution Rank: 19
Ranking Based On Selection: 19
Egypt
Soha R. Abd El Hadi
Soha R. Abd El Hadi
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
182
166
0.912
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,227,565
Country Rank
9,768
Institution Rank: 20
Ranking Based On Selection: 20
Egypt
Mohamed Bahlol
Mohamed Bahlol
Egyptian Russian University
Cairo , Egypt
Others
[email protected]
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
164
0.943
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,250,982
Country Rank
10,142
Institution Rank: 21
Ranking Based On Selection: 21
Egypt
Hadeer Saied
Hadeer Saied
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Biochemistry
biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
156
0.912
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,293,444
Country Rank
10,879
Institution Rank: 22
Ranking Based On Selection: 22
Egypt
Ahmed Ibrahim Abd-Elftah
Ahmed Ibrahim Abd-Elftah
Egyptian Russian University
Cairo , Egypt
Others
Statistics Applies
Statistics
Time series
ARMA
VAR model
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,302,505
Country Rank
11,041
Institution Rank: 23
Ranking Based On Selection: 23
Egypt
Tamer S Mostafa
Tamer S Mostafa
Egyptian Russian University
Cairo , Egypt
Engineering & Technology / Electrical & Electronic Engineering
Photonic crystal-electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
140
0.986
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,329,440
Country Rank
11,524
Institution Rank: 24
Ranking Based On Selection: 24
Egypt
Heba A. Yassin
Heba A. Yassin
Egyptian Russian University
Cairo , Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutics
Drug delivery
Nano-based drugs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
132
0.936
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
World Rank
1,351,606
Country Rank
11,947
Institution Rank: 25
Ranking Based On Selection: 25
Egypt
Omar M El-Abassy
Omar M El-Abassy
Egyptian Russian University
Cairo , Egypt
Natural Sciences / Chemical Sciences
Analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126
126
1.000
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
198,550
Egypt
542
1
Ranking Based On Selection: 1
Hesham Fa Hamed
Hesham Fa Hamed
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,128
2,636
0.843
Engineering & Technology / Electrical & Electronic Engineering
Electronics Eng.
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
245,708
Egypt
745
2
Ranking Based On Selection: 2
MA Morsi|M. A. Morsi
MA Morsi|M. A. Morsi
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,229
2,147
0.963
Natural Sciences / Physics
Solid State Physics
Nanotechnology
Polymer Physics
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
431,409
Egypt
1,670
3
Ranking Based On Selection: 3
Hossam S El Sawy
Hossam S El Sawy
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,200
1,145
0.954
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutics
Nanomedicine
Formulation/Dosage Form Design
Drug Delivery
Pharmaceutical Technology
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
439,446
Egypt
1,722
4
Ranking Based On Selection: 4
Hany S Ibrahim
Hany S Ibrahim
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,401
1,118
0.798
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
PROTACs
Carbonic anhydrase
Kinases
Histone deacetylases
Degraders
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
492,451
Egypt
2,043
5
Ranking Based On Selection: 5
Mahmoud F Abo Ashour
Mahmoud F Abo Ashour
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
959
0.960
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Medicinal Chemistry
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
595,765
Egypt
2,846
6
Ranking Based On Selection: 6
Aly Saeed
Aly Saeed
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
850
720
0.847
Engineering & Technology / Metallurgical & Materials Engineering
Physics
Materials Science
Photonics Materials
Materials for Nuclear Applications
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
633,133
Egypt
3,180
7
Ranking Based On Selection: 7
Hany Ibrahim
Hany Ibrahim
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,188
649
0.546
Natural Sciences / Chemical Sciences
Pharmaceutical analytical chemistry
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,013,168
Egypt
6,742
8
Ranking Based On Selection: 8
Ahmad Ga Khater
Ahmad Ga Khater
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
260
0.992
Others
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,020,242
Egypt
6,841
9
Ranking Based On Selection: 9
Ahmed M Atwa
Ahmed M Atwa
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
256
0.992
Medical and Health Sciences / Pharmacology and Toxicology
Neuroscience
Nephrotoxicity
Hepatotoxicity
Molecular Science
Oxidative stress
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,044,243
Egypt
7,131
10
Ranking Based On Selection: 10
Mohamed A. Sayed|Mohamed A. Said
Mohamed A. Sayed|Mohamed A. Said
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
252
243
0.964
Natural Sciences / Chemical Sciences
Medicinal chemistry
Organic chemistry
Drug design
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,056,126
Egypt
7,280
11
Ranking Based On Selection: 11
Khaled Attala
Khaled Attala
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
237
1.000
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutical analysis and computational chemistry
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,063,605
Egypt
7,371
12
Ranking Based On Selection: 12
Mayar Ayad
Mayar Ayad
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
252
233
0.925
Others
medicinal chemisrty
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,069,812
Egypt
7,465
13
Ranking Based On Selection: 13
Eslam S. Youssef
Eslam S. Youssef
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
235
230
0.979
Natural Sciences / Mathematical Sciences
Numerical analysis
Computational methods
Differential equations
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,107,546
Egypt
7,981
14
Ranking Based On Selection: 14
Dalia A. El-Damasy
Dalia A. El-Damasy
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
219
212
0.968
Others
Microbiology and Immunology
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,111,720
Egypt
8,029
15
Ranking Based On Selection: 15
Michael Gamal Fawzy
Michael Gamal Fawzy
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
224
210
0.938
Others
Spectroscopy
FTIR
Chromatography
LC-MS/MS
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,170,722
Egypt
8,871
16
Ranking Based On Selection: 16
Ahmed Mostafa Reda
Ahmed Mostafa Reda
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
223
185
0.830
Others
microDNA
Oxidative stress
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,174,226
Egypt
8,943
17
Ranking Based On Selection: 17
Aya Tarek
Aya Tarek
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
184
1.000
Others
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,212,812
Egypt
9,548
18
Ranking Based On Selection: 18
Ali Sharawy
Ali Sharawy
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
219
169
0.772
Others
الاحصاء
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,221,681
Egypt
9,677
19
Ranking Based On Selection: 19
Soha R. Abd El Hadi
Soha R. Abd El Hadi
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
182
166
0.912
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutical Chemistry
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,227,565
Egypt
9,768
20
Ranking Based On Selection: 20
Mohamed Bahlol
Mohamed Bahlol
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
174
164
0.943
Others
[email protected]
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,250,982
Egypt
10,142
21
Ranking Based On Selection: 21
Hadeer Saied
Hadeer Saied
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
171
156
0.912
Medical and Health Sciences / Biochemistry
biochemistry
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,293,444
Egypt
10,879
22
Ranking Based On Selection: 22
Ahmed Ibrahim Abd-Elftah
Ahmed Ibrahim Abd-Elftah
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
Others
Statistics Applies
Statistics
Time series
ARMA
VAR model
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,302,505
Egypt
11,041
23
Ranking Based On Selection: 23
Tamer S Mostafa
Tamer S Mostafa
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
140
0.986
Engineering & Technology / Electrical & Electronic Engineering
Photonic crystal-electronics
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,329,440
Egypt
11,524
24
Ranking Based On Selection: 24
Heba A. Yassin
Heba A. Yassin
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
141
132
0.936
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmaceutics
Drug delivery
Nano-based drugs
See All Rankings and Analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,351,606
Egypt
11,947
25
Ranking Based On Selection: 25
Omar M El-Abassy
Omar M El-Abassy
Egyptian Russian University Cairo, Egypt Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126
126
1.000
Natural Sciences / Chemical Sciences
Analytical chemistry
See All Rankings and Analysis