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Highly Cited Researchers

Highly Cited Researchers 158 Scientists Citation Rankings - 2026

See how widely and consistently research is cited with real-time citation rankings.
Covering 2.6 million scientists, this list evaluates both total and last 5 years’ citation counts to measure scientific influence and highlight Highly Cited Researchers.
Built on transparency, it also addresses unethical practices and encourages reporting of violations. Compare results across 13 fields and 221 disciplines.

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Total 158 scientists , Updates every 3 days
* Total Citation Counts Rankings

Rankings

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205,265
World Rank
Egypt
414
Country Rank
Egyptian Atomic Energy Authority Logo
1
University
Ranking Based On Selection:
1
Muhammad Ibrahim Ahmed Abdel Maksoud
Egyptian Atomic Energy Authority Cairo, Egypt
Engineering & Technology / Metallurgical & Materials Engineering
Radiation Physics | Radiation Shielding | Magnetic Materials | Materials Scienc

Citation Metrics

  • Total
    5,755
  • Last 5 Years
    5,611
  • Last 5 Years / Total
    0.975
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* Total Citation Counts Rankings

Rankings

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268,725
World Rank
Egypt
641
Country Rank
Egyptian Atomic Energy Authority Logo
2
University
Ranking Based On Selection:
2
Abdel-Moneim Eid Abdel-Moneim
Egyptian Atomic Energy Authority Cairo, Egypt
Agriculture & Forestry / Poultry Production
Poultry Production | Poultry physiology | Poultry nutrition | Animal Production | Immunolog

Citation Metrics

  • Total
    4,325
  • Last 5 Years
    4,287
  • Last 5 Years / Total
    0.991
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* Total Citation Counts Rankings

Rankings

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288,633
World Rank
Egypt
714
Country Rank
Egyptian Atomic Energy Authority Logo
3
University
Ranking Based On Selection:
3
Hosam M. Saleh
Egyptian Atomic Energy Authority Cairo, Egypt
Others
Waste Managemen

Citation Metrics

  • Total
    3,988
  • Last 5 Years
    3,459
  • Last 5 Years / Total
    0.867
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* Total Citation Counts Rankings

Rankings

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297,740
World Rank
Egypt
761
Country Rank
Egyptian Atomic Energy Authority Logo
4
University
Ranking Based On Selection:
4
Rehab O. Abdel Rahman|R. O. Abdel Rahman, R. O. A. Rahman, Rehab O. A. Rahman
Egyptian Atomic Energy Authority Cairo, Egypt
Engineering & Technology / Nuclear Engineering
Chemical Nuclear Engineering | Radioactive Waste Management | Nuclear Waste Immobilizatio

Citation Metrics

  • Total
    3,846
  • Last 5 Years
    2,649
  • Last 5 Years / Total
    0.689
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* Total Citation Counts Rankings

Rankings

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309,392
World Rank
Egypt
817
Country Rank
Egyptian Atomic Energy Authority Logo
5
University
Ranking Based On Selection:
5
Mahmoud Sanad
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Nuclear Medicine
Radiochimstry | Radiopharmaceuticals | and Nuclear Medicin

Citation Metrics

  • Total
    3,679
  • Last 5 Years
    3,100
  • Last 5 Years / Total
    0.843
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* Total Citation Counts Rankings

Rankings

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410,120
World Rank
Egypt
1,286
Country Rank
Egyptian Atomic Energy Authority Logo
6
University
Ranking Based On Selection:
6
Mona A. El Ghazaly
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Pharmamcolgy | Inflammation | Radiatio

Citation Metrics

  • Total
    2,595
  • Last 5 Years
    1,030
  • Last 5 Years / Total
    0.397
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* Total Citation Counts Rankings

Rankings

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457,652
World Rank
Egypt
1,580
Country Rank
Egyptian Atomic Energy Authority Logo
7
University
Ranking Based On Selection:
7
Mohamed Motaleb
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Radiochemistry | Organic synthesis | Radiolabelling | Biological evaluatio

Citation Metrics

  • Total
    2,234
  • Last 5 Years
    1,310
  • Last 5 Years / Total
    0.586
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* Total Citation Counts Rankings

Rankings

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477,123
World Rank
Egypt
1,696
Country Rank
Egyptian Atomic Energy Authority Logo
8
University
Ranking Based On Selection:
8
Haytham MM Ibrahim
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Microbiology
Nanotechnology | Microbiology | biotechnology | Environmental remediatio

Citation Metrics

  • Total
    2,107
  • Last 5 Years
    1,406
  • Last 5 Years / Total
    0.667
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* Total Citation Counts Rankings

Rankings

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485,556
World Rank
Egypt
1,749
Country Rank
Egyptian Atomic Energy Authority Logo
9
University
Ranking Based On Selection:
9
H. Kasban
Egyptian Atomic Energy Authority Cairo, Egypt
Others
Digital Signal Processing | Nuclear instrruments | communication systems and nuclear applications i

Citation Metrics

  • Total
    2,055
  • Last 5 Years
    1,513
  • Last 5 Years / Total
    0.736
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* Total Citation Counts Rankings

Rankings

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485,793
World Rank
Egypt
1,753
Country Rank
Egyptian Atomic Energy Authority Logo
10
University
Ranking Based On Selection:
10
Amr El-Hag Ali
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Polymer | Radiation | Biomaterials | Nanocomposite

Citation Metrics

  • Total
    2,054
  • Last 5 Years
    824
  • Last 5 Years / Total
    0.401
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* Total Citation Counts Rankings

Rankings

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485,991
World Rank
Egypt
1,756
Country Rank
Egyptian Atomic Energy Authority Logo
11
University
Ranking Based On Selection:
11
Ramy Amer Fahim
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Radiation Dosimetry | Radiation Chemistry | Physical Chemistry | ESR Spectroscopy | ESR Datin

Citation Metrics

  • Total
    2,052
  • Last 5 Years
    2,040
  • Last 5 Years / Total
    0.994
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* Total Citation Counts Rankings

Rankings

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486,192
World Rank
Egypt
1,758
Country Rank
Egyptian Atomic Energy Authority Logo
12
University
Ranking Based On Selection:
12
Mostafa M. Hamed
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Analytical Chemistry | Environmental Chemistry | Nuclear Chemistr

Citation Metrics

  • Total
    2,051
  • Last 5 Years
    1,449
  • Last 5 Years / Total
    0.706
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* Total Citation Counts Rankings

Rankings

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500,023
World Rank
Egypt
1,876
Country Rank
Egyptian Atomic Energy Authority Logo
13
University
Ranking Based On Selection:
13
Jacqueline A. Daoud
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Chemistry | hydrometallurgy | Chemical engineering | environmental scienc

Citation Metrics

  • Total
    1,969
  • Last 5 Years
    772
  • Last 5 Years / Total
    0.392
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* Total Citation Counts Rankings

Rankings

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505,984
World Rank
Egypt
1,920
Country Rank
Egyptian Atomic Energy Authority Logo
14
University
Ranking Based On Selection:
14
Tamer Sakr
Egyptian Atomic Energy Authority Cairo, Egypt
Engineering & Technology / Nanoscience and Nanotechnology
Radiopharmaceutical | Medicinal Chemistry | Molecular Modeling | Nanotechnology | Nanomedicin

Citation Metrics

  • Total
    1,934
  • Last 5 Years
    1,515
  • Last 5 Years / Total
    0.783
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* Total Citation Counts Rankings

Rankings

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517,915
World Rank
Egypt
2,002
Country Rank
Egyptian Atomic Energy Authority Logo
15
University
Ranking Based On Selection:
15
Farag M. Mosallam
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Pharmacy & Pharmaceutical Sciences
Appiled | Pharmaceutical Microbiology | Nano-biotechnology | Nano-Repurposing Molecule

Citation Metrics

  • Total
    1,868
  • Last 5 Years
    1,708
  • Last 5 Years / Total
    0.914
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* Total Citation Counts Rankings

Rankings

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574,385
World Rank
Egypt
2,444
Country Rank
Egyptian Atomic Energy Authority Logo
16
University
Ranking Based On Selection:
16
Heba Mansour
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Biochemistry
Biochemistry | radiation | chemotherapy | natural product

Citation Metrics

  • Total
    1,589
  • Last 5 Years
    668
  • Last 5 Years / Total
    0.420
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* Total Citation Counts Rankings

Rankings

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575,560
World Rank
Egypt
2,452
Country Rank
Egyptian Atomic Energy Authority Logo
17
University
Ranking Based On Selection:
17
Mohamed A. Tolba
Egyptian Atomic Energy Authority Cairo, Egypt
Engineering & Technology / Electrical & Electronic Engineering
Power Quality management | Control systems | Renewable Energy sources | Optimization Algorithm

Citation Metrics

  • Total
    1,583
  • Last 5 Years
    1,456
  • Last 5 Years / Total
    0.920
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* Total Citation Counts Rankings

Rankings

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577,037
World Rank
Egypt
2,466
Country Rank
Egyptian Atomic Energy Authority Logo
18
University
Ranking Based On Selection:
18
Ya El-Nadi
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Inorganic Chemistry | Separation | Solvent Extraction | Metallurg

Citation Metrics

  • Total
    1,577
  • Last 5 Years
    782
  • Last 5 Years / Total
    0.496
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* Total Citation Counts Rankings

Rankings

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577,356
World Rank
Egypt
2,471
Country Rank
Egyptian Atomic Energy Authority Logo
19
University
Ranking Based On Selection:
19
El-Sayed Ramadan El-Sayed|El-Sayed Ramadan El-Sayed, E. R. El-Sayed, El-Sayed Ali
Egyptian Atomic Energy Authority Cairo, Egypt
Medical and Health Sciences / Microbiology
Products Discovery | Bioactives | Fermentation | Endophytic Fungi | Nano-Biotechnolog

Citation Metrics

  • Total
    1,575
  • Last 5 Years
    1,535
  • Last 5 Years / Total
    0.975
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* Total Citation Counts Rankings

Rankings

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583,298
World Rank
Egypt
2,532
Country Rank
Egyptian Atomic Energy Authority Logo
20
University
Ranking Based On Selection:
20
Omar Desouky
Egyptian Atomic Energy Authority Cairo, Egypt
Others
Radiation Biophysics & Radiation Protectio

Citation Metrics

  • Total
    1,549
  • Last 5 Years
    859
  • Last 5 Years / Total
    0.555
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* Total Citation Counts Rankings

Rankings

flag
594,515
World Rank
Egypt
2,614
Country Rank
Egyptian Atomic Energy Authority Logo
21
University
Ranking Based On Selection:
21
Ss Metwally
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Chemistr

Citation Metrics

  • Total
    1,501
  • Last 5 Years
    1,061
  • Last 5 Years / Total
    0.707
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* Total Citation Counts Rankings

Rankings

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613,451
World Rank
Egypt
2,778
Country Rank
Egyptian Atomic Energy Authority Logo
22
University
Ranking Based On Selection:
22
Ahmed Elbarbary Mansour
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Radiation Research of Polymer Chemistry (Hydrogels | nanocomposites

Citation Metrics

  • Total
    1,424
  • Last 5 Years
    1,006
  • Last 5 Years / Total
    0.706
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* Total Citation Counts Rankings

Rankings

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623,660
World Rank
Egypt
2,873
Country Rank
Egyptian Atomic Energy Authority Logo
23
University
Ranking Based On Selection:
23
Amina Aly
Egyptian Atomic Energy Authority Cairo, Egypt
Agriculture & Forestry / Plant Science
abiotic stress | plant biochemistry | plant molecular marke

Citation Metrics

  • Total
    1,384
  • Last 5 Years
    953
  • Last 5 Years / Total
    0.689
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* Total Citation Counts Rankings

Rankings

flag
663,612
World Rank
Egypt
3,213
Country Rank
Egyptian Atomic Energy Authority Logo
24
University
Ranking Based On Selection:
24
Elsayed K Elmaghraby
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Physics
Applied Nuclear Physic

Citation Metrics

  • Total
    1,240
  • Last 5 Years
    692
  • Last 5 Years / Total
    0.558
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* Total Citation Counts Rankings

Rankings

flag
668,135
World Rank
Egypt
3,252
Country Rank
Egyptian Atomic Energy Authority Logo
25
University
Ranking Based On Selection:
25
Atef A. Abdel-Fattah
Egyptian Atomic Energy Authority Cairo, Egypt
Natural Sciences / Chemical Sciences
Radiation Processing | Radiation Dosimetr

Citation Metrics

  • Total
    1,225
  • Last 5 Years
    431
  • Last 5 Years / Total
    0.352
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