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
hetrocyclic chemistrty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,845
3,825
0.654
* Total Citation Counts Rankings
Ranking Based On Selection :2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,841
3,572
0.930
* Total Citation Counts Rankings
Ranking Based On Selection :3
Corrosion of metals and alloys
Green inhibitors
Petroleum additives
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,054
2,517
0.824
* Total Citation Counts Rankings
Ranking Based On Selection :4
Design and synthesis of targeted small molecules for biological analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,871
0.850
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,093
590
0.282
* Total Citation Counts Rankings
Ranking Based On Selection :6
Coagulation system
Retenoid receptors
idiosyncrasy
EMT
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,044
1,183
0.579
* Total Citation Counts Rankings
Ranking Based On Selection :7
Thalassemias and Hemoglobinopathies
G6PD Deficiency
Nutritional Anemia
Other Red Blood Cell Disordered
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,541
790
0.513
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,538
1,027
0.668
* Total Citation Counts Rankings
Ranking Based On Selection :9
Medical & Molecular Microbiology
Immunology
Antimicrobial Resistance
Emerging Infectious Diseases
Hospital Hygiene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,415
836
0.591
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,172
0.879
* Total Citation Counts Rankings
Ranking Based On Selection :11
Topics of analysis: fractional differential systems
Existence & Uniqueness
Stability
Controllability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,246
1,046
0.839
* Total Citation Counts Rankings
Ranking Based On Selection :12
EBM
Education
Clinical research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
832
694
0.834
* Total Citation Counts Rankings
Ranking Based On Selection :13
Progrtamming
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
721
567
0.786
* Total Citation Counts Rankings
Ranking Based On Selection :14
Associate Professor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
676
426
0.630
* Total Citation Counts Rankings
Ranking Based On Selection :15
Mycology
Natural products
Alternative medicine
infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
611
595
0.974
* Total Citation Counts Rankings
Ranking Based On Selection :16
Remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
445
228
0.512
* Total Citation Counts Rankings
Ranking Based On Selection :17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
387
281
0.726
* Total Citation Counts Rankings
Ranking Based On Selection :18
AI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349
244
0.699
* Total Citation Counts Rankings
Ranking Based On Selection :19
Geology
Stratigraphy
Micropaleontology
Biostratigraphy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
346
313
0.905
* Total Citation Counts Rankings
Ranking Based On Selection :20
Clinical
Biochemical & Statistical Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
323
0.973
* Total Citation Counts Rankings
Ranking Based On Selection :21
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
292
178
0.610
* Total Citation Counts Rankings
Ranking Based On Selection :22
insect physiology
toxicity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
176
0.609
* Total Citation Counts Rankings
Ranking Based On Selection :23
Bayesian Estimation
Bayesian Prediction
Reliability
Maximum Likelihood Estimation
Discrete
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
287
254
0.885
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental Geochemistry
Mercury Speciation
Paddy Soil DOM
PTEs assessment and associated health risks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
277
275
0.993
* Total Citation Counts Rankings
Ranking Based On Selection :25
Soil Genesis
Soil Survey and Land Evaluation
Remote Sensing of soils
and GIS Applications in Agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275
188
0.684
Yousry A.Ammar
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,845
3,825
0.654
Bassem Abu-Nasser
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,841
3,572
0.930
RS Abdel Hameed
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,054
2,517
0.824
Corrosion of metals and alloys
Green inhibitors
Petroleum additives
Hany EA Ahmed
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,871
0.850
Design and synthesis of targeted small molecules for biological analysis
Jamal M Safi
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,093
590
0.282
Mohamed Sadek Abdel-Bakky
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,044
1,183
0.579
Mahmoud Sirdah
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,541
790
0.513
Thalassemias and Hemoglobinopathies
G6PD Deficiency
Nutritional Anemia
Other Red Blood Cell Disordered
Nagwa Badawy
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,538
1,027
0.668
Nahed Al Laham
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,415
836
0.591
Medical & Molecular Microbiology
Immunology
Antimicrobial Resistance
Emerging Infectious Diseases
Hospital Hygiene
Abdelrahman Tarek Mohammed
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,172
0.879
Mohammed M Matar
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,246
1,046
0.839
Topics of analysis: fractional differential systems
Existence & Uniqueness
Stability
Controllability
Ahmed Menshawy|Ahmed Maher Menshawy Mesreb
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
832
694
0.834
Naser Masri
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
721
567
0.786
Adnan M Aish
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
676
426
0.630
Suleiman, WB
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
611
595
0.974
Mycology
Natural products
Alternative medicine
infectious diseases
Mostafa Kamel
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
445
228
0.512
Islam Albatish
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
387
281
0.726
Ahmad Marouf
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349
244
0.699
Kamel H. Mahfouz
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
346
313
0.905
Mohamed Abdel-Maboud
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
323
0.973
Inass Hassan Ahmad
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
292
178
0.610
Khalid Hamadah
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
176
0.609
Abeer El-Helbawy
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
287
254
0.885
Bayesian Estimation
Bayesian Prediction
Reliability
Maximum Likelihood Estimation
Discrete
Mahmoud A. Abdelhafiz
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
277
275
0.993
Environmental Geochemistry
Mercury Speciation
Paddy Soil DOM
PTEs assessment and associated health risks
Mohamed Ahmed El-Said Saeed
Al Azhar University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275
188
0.684
Soil Genesis
Soil Survey and Land Evaluation
Remote Sensing of soils
and GIS Applications in Agriculture