Citation Rankings
Highly Cited Researchers

Natural Sciences Highly Cited Researchers 169 Scientists Citation in Qatar Rankings - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Qatar
Nicolas Vilchez
Astrophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,466
6,982
0.209
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Qatar
Sami Sayadi
Environmental Biotechnology
Sustainable Developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,798
12,690
0.474
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Qatar
Shahab Uddin|Shahab Uddin Khan
Cancer Biology
Translational Research
dysregulated signalin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,352
10,050
0.471
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Qatar
Naila Rabbani
Diabetes Advanced glycation endproducts
Proteomics
Biomarker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,863
6,998
0.371
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Qatar
Donald R Love
Molecular Genetic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,083
3,133
0.195
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Qatar
Patrick Tang
Virology
Metagenomics
Genomic Epidemiology
Microbiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,088
10,454
0.693
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Qatar
Mingzhan Xue
Biomarker
Anti-oxidative and metabolic stress
and bioactive
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,551
3,334
0.229
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Qatar
Eric S Kilpatrick
Laboratory Medicine
Diabetes
Lipid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,830
3,603
0.305
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Qatar
Muftah H El Naas
CO2 Capture & Conversion
Electrocoagulation
Adsorption
Biotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,458
7,560
0.660

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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Qatar
Ibnelwaleed A Hussein
Oilfield Chemistry
Materials for Energy Applications
H2 Storage
Energy & A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,523
7,177
0.682
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Qatar
Said Sif
Epigenetics and cance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,625
2,346
0.244
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Qatar
Houssein Ayoub
Mathematical Modeling of Infectious Diseases
Computational Epidemiology
Hepatitis C Virus
STI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,808
8,713
0.989
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Qatar
Sergey Rashkeev
Condensed Matter Physics
Computational Materials Science
Physical Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,665
2,360
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Qatar
Serhiy Souchelnytskyi
personalized medicine
biomedicine
cancer
proteomics
systems biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,552
1,387
0.162
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Qatar
Mohammad Rubayet Hasan
Clinical Microbiology
Virology
Molecular Biology
Infectious Disease Diagnostic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,123
7,169
0.883
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Qatar
Ikhlak Ahmed
Bioinformatics
Computational Genomics
Rare diseases
Multiomics
population genenomic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,545
2,723
0.361
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Qatar
Peter Kasak
Surface modification
organic chemistry
polymerization
material chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,740
4,547
0.675
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Qatar
Ajaz Bhat
Cancer Biology
Immunology
Infectious disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,644
6,011
0.905
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Qatar
Ala Eddin Al Moustafa
Cellular & Molecular Oncolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,541
3,988
0.610
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Qatar
Kodappully Sivaraman Siveen
Flow Cytometry & Sorting
Deep phenotyping of Immune cell populations
Cancer stem cells
Oxidative Stres
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,453
4,137
0.641
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Qatar
Georges Nemer
Molecular biology
Genetics
Heart development and diseases
Exome sequencin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,419
2,426
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Qatar
Feras Alali
Phytochemistry
phytotherapy
Dereplication
drug discover
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,391
2,665
0.417
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Qatar
Nehad M Alajez
Cancer
microRNAs
lncRNA
Epigenetics
Biomarke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,281
3,509
0.559
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Qatar
Jan Kwak
Chemistry
colloids
surfactants
water-soluble polymers
rheolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,054
405
0.067
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Qatar
Allal Ouhtit
Molecular and cell biology
Genomics
Genetics
Cance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,893
2,393
0.406
* Total Citation Counts Rankings
Rankings
20,418
Qatar
8
2
Ranking Based On Selection: 1
Nicolas Vilchez
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,466
6,982
0.209
* Total Citation Counts Rankings
Rankings
28,691
Qatar
12
3
Ranking Based On Selection: 2
Sami Sayadi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,798
12,690
0.474
Environmental Biotechnology
Sustainable Developmen
* Total Citation Counts Rankings
Rankings
39,787
Qatar
20
3
Ranking Based On Selection: 3
Shahab Uddin|Shahab Uddin Khan
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,352
10,050
0.471
Cancer Biology
Translational Research
dysregulated signalin
* Total Citation Counts Rankings
Rankings
47,167
Qatar
29
11
Ranking Based On Selection: 4
Naila Rabbani
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,863
6,998
0.371
Diabetes Advanced glycation endproducts
Proteomics
Biomarker
* Total Citation Counts Rankings
Rankings
58,443
Qatar
43
3
Ranking Based On Selection: 5
Donald R Love
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,083
3,133
0.195
* Total Citation Counts Rankings
Rankings
63,632
Qatar
45
5
Ranking Based On Selection: 6
Patrick Tang
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,088
10,454
0.693
Virology
Metagenomics
Genomic Epidemiology
Microbiolog
* Total Citation Counts Rankings
Rankings
66,715
Qatar
48
13
Ranking Based On Selection: 7
Mingzhan Xue
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,551
3,334
0.229
Biomarker
Anti-oxidative and metabolic stress
and bioactive
* Total Citation Counts Rankings
Rankings
86,282
Qatar
65
8
Ranking Based On Selection: 8
Eric S Kilpatrick
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,830
3,603
0.305
* Total Citation Counts Rankings
Rankings
89,727
Qatar
68
28
Ranking Based On Selection: 9
Muftah H El Naas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,458
7,560
0.660
CO2 Capture & Conversion
Electrocoagulation
Adsorption
Biotechnolog
* Total Citation Counts Rankings
Rankings
99,102
Qatar
77
36
Ranking Based On Selection: 10
Ibnelwaleed A Hussein
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,523
7,177
0.682
Oilfield Chemistry
Materials for Energy Applications
H2 Storage
Energy & A

Smart Institutional Plan

Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.

* Total Citation Counts Rankings
Rankings
109,803
Qatar
85
40
Ranking Based On Selection: 11
Said Sif
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,625
2,346
0.244
* Total Citation Counts Rankings
Rankings
121,327
Qatar
104
48
Ranking Based On Selection: 12
Houssein Ayoub
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,808
8,713
0.989
Mathematical Modeling of Infectious Diseases
Computational Epidemiology
Hepatitis C Virus
STI
* Total Citation Counts Rankings
Rankings
123,594
Qatar
107
8
Ranking Based On Selection: 13
Sergey Rashkeev
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,665
2,360
0.272
Condensed Matter Physics
Computational Materials Science
Physical Chemistr
* Total Citation Counts Rankings
Rankings
125,422
Qatar
109
52
Ranking Based On Selection: 14
Serhiy Souchelnytskyi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,552
1,387
0.162
personalized medicine
biomedicine
cancer
proteomics
systems biolog
* Total Citation Counts Rankings
Rankings
132,763
Qatar
117
13
Ranking Based On Selection: 15
Mohammad Rubayet Hasan
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,123
7,169
0.883
Clinical Microbiology
Virology
Molecular Biology
Infectious Disease Diagnostic
* Total Citation Counts Rankings
Rankings
143,832
Qatar
129
14
Ranking Based On Selection: 16
Ikhlak Ahmed
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,545
2,723
0.361
Bioinformatics
Computational Genomics
Rare diseases
Multiomics
population genenomic
* Total Citation Counts Rankings
Rankings
161,891
Qatar
150
72
Ranking Based On Selection: 17
Peter Kasak
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,740
4,547
0.675
Surface modification
organic chemistry
polymerization
material chemistr
* Total Citation Counts Rankings
Rankings
164,319
Qatar
156
15
Ranking Based On Selection: 18
Ajaz Bhat
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,644
6,011
0.905
* Total Citation Counts Rankings
Rankings
166,975
Qatar
162
77
Ranking Based On Selection: 19
Ala Eddin Al Moustafa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,541
3,988
0.610
* Total Citation Counts Rankings
Rankings
169,416
Qatar
167
18
Ranking Based On Selection: 20
Kodappully Sivaraman Siveen
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,453
4,137
0.641
Flow Cytometry & Sorting
Deep phenotyping of Immune cell populations
Cancer stem cells
Oxidative Stres
* Total Citation Counts Rankings
Rankings
170,317
Qatar
170
29
Ranking Based On Selection: 21
Georges Nemer
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,419
2,426
0.378
Molecular biology
Genetics
Heart development and diseases
Exome sequencin
* Total Citation Counts Rankings
Rankings
171,045
Qatar
171
80
Ranking Based On Selection: 22
Feras Alali
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,391
2,665
0.417
Phytochemistry
phytotherapy
Dereplication
drug discover
* Total Citation Counts Rankings
Rankings
174,015
Qatar
172
30
Ranking Based On Selection: 23
Nehad M Alajez
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,281
3,509
0.559
* Total Citation Counts Rankings
Rankings
180,691
Qatar
179
83
Ranking Based On Selection: 24
Jan Kwak
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,054
405
0.067
Chemistry
colloids
surfactants
water-soluble polymers
rheolog
* Total Citation Counts Rankings
Rankings
185,619
Qatar
185
88
Ranking Based On Selection: 25
Allal Ouhtit
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,893
2,393
0.406