World Scientist and University Rankings 2025

Malta Natural Sciences 68 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Mar 09, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (998.570) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 1
Patrick J. Schembri
marine biology
Mediterranean island biodiversity
human impact on Mediterranean marine and coastal ecosystems
Metrics
H-Index
i10 Index
Citation Counts
45
176
9,373
* Total H IndexRankings
Ranking Based On Selection: 2
Jackson Levi Said
Astrophysics
Cosmology
Gravitation
Metrics
H-Index
i10 Index
Citation Counts
37
75
6,160
* Total H IndexRankings
Ranking Based On Selection: 3
Giovanna Bosica
Organic Synthesis
Green Chemistry
Heterogeneous Catalysis
Multicomponent Reactions
Heterocyclic Compounds
Metrics
H-Index
i10 Index
Citation Counts
34
74
4,469
* Total H IndexRankings
Ranking Based On Selection: 4
André Xuereb
Quantum optics
Optomechanics
Laser cooling
Metrics
H-Index
i10 Index
Citation Counts
28
49
3,217
* Total H IndexRankings
Ranking Based On Selection: 5
Joseph A Borg
Marine biology
Marine ecology
Seagrass ecology
Crustacean txonomy and ecology
Aquaculture-environment interactions
Metrics
H-Index
i10 Index
Citation Counts
27
52
3,286
* Total H IndexRankings
Ranking Based On Selection: 6
Alex Felice
Genomics
Genetics Medicine
Haematology
Haemoglobinopathies & Globin Gene Control
Metrics
H-Index
i10 Index
Citation Counts
27
52
3,471
* Total H IndexRankings
Ranking Based On Selection: 7
David C. Magri
Molecular Logic Gates
Fluorescence
Pourbaix Sensor
Lab-on-a-Molecule
Supramolecular
Metrics
H-Index
i10 Index
Citation Counts
26
42
3,212
* Total H IndexRankings
Ranking Based On Selection: 8
Tony John George Apollaro
condensed matter physics
quantum information
quantum thermodynamics
open quantum systems
Metrics
H-Index
i10 Index
Citation Counts
24
37
1,876
* Total H IndexRankings
Ranking Based On Selection: 9
Maria Attard
Urban Transport
Transport Policy
Urban and Transport Geography
Metrics
H-Index
i10 Index
Citation Counts
23
44
1,754

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info

* Total H IndexRankings
Ranking Based On Selection: 11
Irene Sciriha
spectral graph theory
quantum mechanics
networks
Carbon molecules
Molecular conductivity.
Metrics
H-Index
i10 Index
Citation Counts
22
37
1,955
* Total H IndexRankings
Ranking Based On Selection: 12
Julian Evans
Functional Ecology
Marine Biology
Bioinvasions
Environmental Monitoring
Metrics
H-Index
i10 Index
Citation Counts
21
38
3,428
* Total H IndexRankings
Ranking Based On Selection: 13
Christian Saliba
Molecular Pathology
Oncology
Metrics
H-Index
i10 Index
Citation Counts
19
27
5,469
* Total H IndexRankings
Ranking Based On Selection: 14
Leyla Knittweis
Fisheries Science and Natural Resource Management
Fish Biology
Population Dynamics
Marine Spatial Planning
Marine Litter
Metrics
H-Index
i10 Index
Citation Counts
21
26
2,183
* Total H IndexRankings
Ranking Based On Selection: 15
Christian Scerri
Genetics
thalassaemia
physiology
molecular genetics
Metrics
H-Index
i10 Index
Citation Counts
20
27
2,435
* Total H IndexRankings
Ranking Based On Selection: 16
Joseph Borg
experimental haematology
molecular genetics
Metrics
H-Index
i10 Index
Citation Counts
19
36
2,542
* Total H IndexRankings
Ranking Based On Selection: 17
Adriana Vella
Biology
Genetics
Conservation
Metrics
H-Index
i10 Index
Citation Counts
19
37
1,449
* Total H IndexRankings
Ranking Based On Selection: 18
Byron Baron
Proteomics
Protein Methylation
HSPs
METTL
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,395
* Total H IndexRankings
Ranking Based On Selection: 19
Joseph Sultana
Relativistic Astrophysics
Cosmology
Gravitation
Metrics
H-Index
i10 Index
Citation Counts
18
26
930
* Total H IndexRankings
Ranking Based On Selection: 20
Ulrich Baisch
Lanthanide Chemistry
Crystal Engineering
Metrics
H-Index
i10 Index
Citation Counts
18
28
933
* Total H IndexRankings
Ranking Based On Selection: 21
Godfrey Grech
Molecular Oncology
Molecular Diagnostics
Metrics
H-Index
i10 Index
Citation Counts
17
29
1,937
* Total H IndexRankings
Ranking Based On Selection: 22
Noel J. Aquilina
personal exposure
tobacco pollutants
atmospheric chemistry
polycyclic aromatic hydrocarbons
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,178
* Total H IndexRankings
Ranking Based On Selection: 23
JoAnn Cassar
Conservation education
Heritage Science
Earth observations for CH
Climate change
Metrics
H-Index
i10 Index
Citation Counts
17
31
1,430
* Total H IndexRankings
Ranking Based On Selection: 24
Josef Lauri
graph theory
reconstruction problem
graph symmetries
colouring of mixed hypergraphs
Metrics
H-Index
i10 Index
Citation Counts
17
29
1,266
* Total H IndexRankings
Ranking Based On Selection: 25
Peter Borg
Discrete Mathematics
Combinatorics
Graph Theory
Metrics
H-Index
i10 Index
Citation Counts
16
25
758
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Patrick J. Schembri
Metrics
H-Index
i10-Index
Citation Counts
45
176
9,373
marine biology
Mediterranean island biodiversity
human impact on Mediterranean marine and coastal ecosystems
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Jackson Levi Said
Metrics
H-Index
i10-Index
Citation Counts
37
75
6,160
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Giovanna Bosica
Metrics
H-Index
i10-Index
Citation Counts
34
74
4,469
Organic Synthesis
Green Chemistry
Heterogeneous Catalysis
Multicomponent Reactions
Heterocyclic Compounds
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
André Xuereb
Metrics
H-Index
i10-Index
Citation Counts
28
49
3,217
Quantum optics
Optomechanics
Laser cooling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Joseph A Borg
Metrics
H-Index
i10-Index
Citation Counts
27
52
3,286
Marine biology
Marine ecology
Seagrass ecology
Crustacean txonomy and ecology
Aquaculture-environment interactions
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Alex Felice
Metrics
H-Index
i10-Index
Citation Counts
27
52
3,471
Genomics
Genetics Medicine
Haematology
Haemoglobinopathies & Globin Gene Control
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
David C. Magri
Metrics
H-Index
i10-Index
Citation Counts
26
42
3,212
Molecular Logic Gates
Fluorescence
Pourbaix Sensor
Lab-on-a-Molecule
Supramolecular
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Tony John George Apollaro
Metrics
H-Index
i10-Index
Citation Counts
24
37
1,876
condensed matter physics
quantum information
quantum thermodynamics
open quantum systems
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Maria Attard
Metrics
H-Index
i10-Index
Citation Counts
23
44
1,754
Urban Transport
Transport Policy
Urban and Transport Geography
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Kristian Zarb Adami
Metrics
H-Index
i10-Index
Citation Counts
23
43
1,582

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Irene Sciriha
Metrics
H-Index
i10-Index
Citation Counts
22
37
1,955
spectral graph theory
quantum mechanics
networks
Carbon molecules
Molecular conductivity.
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Julian Evans
Metrics
H-Index
i10-Index
Citation Counts
21
38
3,428
Functional Ecology
Marine Biology
Bioinvasions
Environmental Monitoring
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Christian Saliba
Metrics
H-Index
i10-Index
Citation Counts
19
27
5,469
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Leyla Knittweis
Metrics
H-Index
i10-Index
Citation Counts
21
26
2,183
Fisheries Science and Natural Resource Management
Fish Biology
Population Dynamics
Marine Spatial Planning
Marine Litter
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Christian Scerri
Metrics
H-Index
i10-Index
Citation Counts
20
27
2,435
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Joseph Borg
Metrics
H-Index
i10-Index
Citation Counts
19
36
2,542
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Adriana Vella
Metrics
H-Index
i10-Index
Citation Counts
19
37
1,449
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Byron Baron
Metrics
H-Index
i10-Index
Citation Counts
19
29
1,395
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Joseph Sultana
Metrics
H-Index
i10-Index
Citation Counts
18
26
930
Relativistic Astrophysics
Cosmology
Gravitation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Ulrich Baisch
Metrics
H-Index
i10-Index
Citation Counts
18
28
933
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Godfrey Grech
Metrics
H-Index
i10-Index
Citation Counts
17
29
1,937
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Noel J. Aquilina
Metrics
H-Index
i10-Index
Citation Counts
17
22
1,178
personal exposure
tobacco pollutants
atmospheric chemistry
polycyclic aromatic hydrocarbons
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
JoAnn Cassar
Metrics
H-Index
i10-Index
Citation Counts
17
31
1,430
Conservation education
Heritage Science
Earth observations for CH
Climate change
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Josef Lauri
Metrics
H-Index
i10-Index
Citation Counts
17
29
1,266
graph theory
reconstruction problem
graph symmetries
colouring of mixed hypergraphs
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Peter Borg
Metrics
H-Index
i10-Index
Citation Counts
16
25
758
Discrete Mathematics
Combinatorics
Graph Theory
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