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
petrochemical engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,112
1,413
0.344
* Total Citation Counts Rankings
Ranking Based On Selection :2
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,603
1,323
0.825
* Total Citation Counts Rankings
Ranking Based On Selection :3
Radiation Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,496
1,343
0.898
* Total Citation Counts Rankings
Ranking Based On Selection :4
Knowledge Management
Simulation
Leadership
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,266
937
0.740
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,101
681
0.619
* Total Citation Counts Rankings
Ranking Based On Selection :6
Nanotechnology
phospholipids
novel drug delivery systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,001
792
0.791
* Total Citation Counts Rankings
Ranking Based On Selection :7
HPLC
MS
HPTLC
Fluoremetry
Electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
873
314
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :8
Enviromental Eng.
Water Pollution
petrochemical Eng
Petroleum Eng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
847
573
0.677
* Total Citation Counts Rankings
Ranking Based On Selection :9
Modeling and simulation
Waste water treatment
Separation process
petroluem refining
nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
739
577
0.781
* Total Citation Counts Rankings
Ranking Based On Selection :10
orthopedic Physical therapy
sports rehabilitation
therapeutic exercises
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
724
464
0.641
* Total Citation Counts Rankings
Ranking Based On Selection :11
pharmaceutics
pharmacy practice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
687
523
0.761
* Total Citation Counts Rankings
Ranking Based On Selection :12
Pharmaceutical analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
659
360
0.546
* Total Citation Counts Rankings
Ranking Based On Selection :13
Applied Mathematics
Mathematical Modeling
Numerical Modeling
Thermoelasticity
Mathematical Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
604
316
0.523
* Total Citation Counts Rankings
Ranking Based On Selection :14
Metal Cutting
Machining
Conventional and Nontraditional Manufacturing Processes
CNC
CAE
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
597
181
0.303
* Total Citation Counts Rankings
Ranking Based On Selection :15
Microbiology
Nanoparticles
Active metabolites
Natural products and their medical applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
579
579
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
569
50
0.088
* Total Citation Counts Rankings
Ranking Based On Selection :17
Microbiology
Biochemistry
Epigenetics
Immunology
Virology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
532
172
0.323
* Total Citation Counts Rankings
Ranking Based On Selection :18
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
520
270
0.519
* Total Citation Counts Rankings
Ranking Based On Selection :19
engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
495
492
0.994
* Total Citation Counts Rankings
Ranking Based On Selection :20
molecular biology
cell culture and biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
139
0.369
* Total Citation Counts Rankings
Ranking Based On Selection :21
experimental pharmacology
toxicology
neuroscience
behavioral pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
322
0.967
* Total Citation Counts Rankings
Ranking Based On Selection :22
Electrical Power Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
83
0.259
* Total Citation Counts Rankings
Ranking Based On Selection :23
Pharmacognosy
Phytochemistry
Medicinal Plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304
84
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :24
natural products
HPLC
LC-MS/MS
NMR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
277
258
0.931
* Total Citation Counts Rankings
Ranking Based On Selection :25
nanotechnology
water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
274
272
0.993
* Total Citation Counts Rankings
Rankings
246,112
517
1
Ranking Based On Selection: 1
Mohamed Fahim
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,112
1,413
0.344
petrochemical engineering
* Total Citation Counts Rankings
Rankings
513,055
1,920
2
Ranking Based On Selection: 2
Ragwa M Farid
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,603
1,323
0.825
* Total Citation Counts Rankings
Rankings
536,314
2,076
3
Ranking Based On Selection: 3
Abouzeid A Thabet
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,496
1,343
0.898
* Total Citation Counts Rankings
Rankings
594,087
2,576
4
Ranking Based On Selection: 4
Mohamed AF Ragab
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,266
937
0.740
Knowledge Management
Simulation
Leadership
* Total Citation Counts Rankings
Rankings
643,950
3,018
5
Ranking Based On Selection: 5
Hend Hussien
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,101
681
0.619
* Total Citation Counts Rankings
Rankings
678,049
3,347
6
Ranking Based On Selection: 6
Wessam M El Refaie
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,001
792
0.791
Nanotechnology
phospholipids
novel drug delivery systems
* Total Citation Counts Rankings
Rankings
727,387
3,867
7
Ranking Based On Selection: 7
Rasha Shaalan
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
873
314
0.360
HPLC
MS
HPTLC
Fluoremetry
Electrochemistry
* Total Citation Counts Rankings
Rankings
738,072
3,966
8
Ranking Based On Selection: 8
Ehssan Nassef
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
847
573
0.677
Enviromental Eng.
Water Pollution
petrochemical Eng
Petroleum Eng
* Total Citation Counts Rankings
Rankings
785,810
4,459
9
Ranking Based On Selection: 9
NS Yousef
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
739
577
0.781
Modeling and simulation
Waste water treatment
Separation process
petroluem refining
nanotechnology
* Total Citation Counts Rankings
Rankings
792,963
4,529
10
Ranking Based On Selection: 10
Ashraf Ramadan Hafez
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
724
464
0.641
orthopedic Physical therapy
sports rehabilitation
therapeutic exercises
* Total Citation Counts Rankings
Rankings
810,776
4,722
11
Ranking Based On Selection: 11
Ming Ming Wen
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
687
523
0.761
pharmaceutics
pharmacy practice
* Total Citation Counts Rankings
Rankings
825,130
4,869
12
Ranking Based On Selection: 12
Haggag RS
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
659
360
0.546
Pharmaceutical analytical chemistry
* Total Citation Counts Rankings
Rankings
853,736
5,202
13
Ranking Based On Selection: 13
Mohamed Naim Anwar
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
604
316
0.523
Applied Mathematics
Mathematical Modeling
Numerical Modeling
Thermoelasticity
Mathematical Biology
* Total Citation Counts Rankings
Rankings
857,614
5,246
14
Ranking Based On Selection: 14
Samy E Oraby
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
597
181
0.303
Metal Cutting
Machining
Conventional and Nontraditional Manufacturing Processes
CNC
CAE
* Total Citation Counts Rankings
Rankings
866,840
5,348
15
Ranking Based On Selection: 15
Bassma Hassan Elwakil
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
579
579
1.000
Microbiology
Nanoparticles
Active metabolites
Natural products and their medical applications
* Total Citation Counts Rankings
Rankings
873,063
5,424
16
Ranking Based On Selection: 16
Amira Safwat
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
569
50
0.088
* Total Citation Counts Rankings
Rankings
894,726
5,651
17
Ranking Based On Selection: 17
Mohamed S Abdel Latif
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
532
172
0.323
Microbiology
Biochemistry
Epigenetics
Immunology
Virology
* Total Citation Counts Rankings
Rankings
902,675
5,722
18
Ranking Based On Selection: 18
Yasser Fouad Hassan|Yasser F. Hassan, Y. Hassan, Yasser Hassan
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
520
270
0.519
* Total Citation Counts Rankings
Rankings
921,618
5,914
19
Ranking Based On Selection: 19
Wessam Salama
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
495
492
0.994
* Total Citation Counts Rankings
Rankings
1,032,695
6,934
20
Ranking Based On Selection: 20
Tarek El Sewedy
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
139
0.369
molecular biology
cell culture and biochemistry
* Total Citation Counts Rankings
Rankings
1,081,503
7,359
21
Ranking Based On Selection: 21
Samar O.El-Ganainy
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
322
0.967
experimental pharmacology
toxicology
neuroscience
behavioral pharmacology
* Total Citation Counts Rankings
Rankings
1,097,135
7,487
22
Ranking Based On Selection: 22
Mahmoud El Gammal
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
83
0.259
Electrical Power Engineering
* Total Citation Counts Rankings
Rankings
1,119,619
7,672
23
Ranking Based On Selection: 23
El-Ghazouly, MG
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304
84
0.276
Pharmacognosy
Phytochemistry
Medicinal Plants
* Total Citation Counts Rankings
Rankings
1,157,341
8,055
24
Ranking Based On Selection: 24
Samar Bassam Moaz
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
277
258
0.931
natural products
HPLC
LC-MS/MS
NMR
* Total Citation Counts Rankings
Rankings
1,161,590
8,111
25
Ranking Based On Selection: 25
Mostafa Elkhatib
Pharos University in Alexandria
İskenderiye, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
274
272
0.993
nanotechnology
water treatment