Mark Obinna Onyema
Natural Sciences / Chemical Sciences
AD Scientific Index ID: 4495164
SCORES | RANKINGS | ||||
---|---|---|---|---|---|
In University of Port Harcourt (781) | In Nigeria (48,193) | In Africa (170,458) | World (2,395,197) | ||
H Index (Total) | 9 | #187 | #9,264 | #34,154 | #1,035,213 |
H Index (Last 6 Years) | 8 | #157 | #8,491 | #32,006 | #??? |
H Index Last 6 years / Total Ratio
|
88% | ||||
i10 Index (Total) | 9 | #182 | #9,063 | #33,468 | #??? |
i10 Index (Last 6 Years) | 7 | #159 | #8,443 | #31,974 | #??? |
i10 Index Last 6 years / Total Ratio | 77% | ||||
Citation (Total) | 278 | #211 | #10,740 | #38,664 | #??? |
Citation (Last 6 Years) | 245 | #160 | #8,740 | #33,076 | #??? |
Citation Last 6 years / Total Ratio | 88% | ||||
Natural Sciences * |
#23 (66) * |
#1,076 (4,523) * |
(20,299) * |
(312,580) * |
|
Chemical Sciences * Petroleum and Environmental Geochemistry | |
#6 (22) * |
#423 (1,322) * |
(5,786) * |
(64,980) * |
* Nov 22, 2024 | According to Total H Index | BETA VERSION
Notice: Please note that the subject field rankings for the world, region, country, and university are in the Beta Version due to the exclusion of profiles classified under 'Others' (873.864 scientists whose branches have not been determined or updated). These rankings will adjust as profiles are updated.
Top %3 Indicator: The 'Top 3%' label indicates that a scientist ranks within the top 3% of all scientists in the AD Scientific Index for their specific subject field at the institutional, country, or world level.
Reporting Inappropriate Profiles: To report inappropriate, inaccurate, or unethical profiles, including deceased scientists or profiles that require deletion, please contact [email protected]. In line with our Data Privacy Policy, if you wish to have your personal information removed, please email [email protected]. We will delete your data within 5 business days.
Free Updates: To update your university or institution name, please email [email protected] with your AD Scientific Index ID and supporting documentation. Join our list to unlock premium membership benefits – click here.
Google Scholar
Visit Web Page
University / Institution Rankings
University of Port Harcourt Rankings
AD Scientific Index ID
4495164
Web Of Science Researcher ID
H-Index , Verified Peer Reviews, Citing Articles
ORCID ID
Scopus Author ID
H-Index, Citations, Documents
Researchgate
Research Interest Score, h-index
-
school
Academic Degree
World: Top 10 Scientists in Natural Sciences / Chemical Sciences
Jun Chen
Jun Chen
Nankai University
World Rank #53
Jiaguo Yu
Jiaguo Yu
China University of Geosciences
World Rank #230
Peidong Yang
Peidong Yang
University of California Berkeley
World Rank #435
Hongjie Dai
Hongjie Dai
Stanford University
World Rank #450
Krzysztof Matyjaszewski
Krzysztof Matyjaszewski
Carnegie Mellon University
World Rank #453
John Yates
John Yates
Scripps Research Institute
World Rank #511
George Church
George Church
Harvard University
World Rank #521
Xiaoyuan Shawn Chen
Xiaoyuan Shawn Chen
National University of Singapore
World Rank #569
Chad Mirkin
Chad Mirkin
Northwestern University
World Rank #581
Stephen L Buchwald
Stephen L Buchwald
Massachusetts Institute of Technology
World Rank #599
Nigeria: Top 10 Scientists in Natural Sciences / Chemical Sciences
Emeka Oguzie
Emeka Oguzie
Federal University of Technology Owerri
World Rank #56,385
Olugbenga Solomon Bello
Olugbenga Solomon Bello
Ladoke Akintola University of Technology
World Rank #58,712
Oladele Osibanjo
Oladele Osibanjo
University of Ibadan
World Rank #73,329
Kayode Adebowale|Kayode O. Esuoso, K. O. Esuoso
Kayode Adebowale|Kayode O. Esuoso, K. O. Esuoso
University of Ibadan
World Rank #76,535
Lukman O. Olasunkanmi
Lukman O. Olasunkanmi
Obafemi Awolowo University
World Rank #88,045
Moses M. Solomon
Moses M. Solomon
Covenant University Ota
World Rank #114,209
Folahan Amoo Adekola
Folahan Amoo Adekola
University of Ilorin
World Rank #123,342
Emmanuel I. Unuabonah
Emmanuel I. Unuabonah
Redeemer's University
World Rank #135,185
Abolanle S Adekunle
Abolanle S Adekunle
Obafemi Awolowo University
World Rank #143,467
Chukwujindu Maxwell Azubuike Iwegbue
Chukwujindu Maxwell Azubuike Iwegbue
Delta State University Nigeria
World Rank #144,234
University of Port Harcourt: Top 10 Scientists in Natural Sciences / Chemical Sciences
Michael Horsfall Jnr
Michael Horsfall Jnr
Natural Sciences
Chemical Sciences
World Rank #251,620
Chukwunonye M. Ojinnaka
Chukwunonye M. Ojinnaka
Natural Sciences
Chemical Sciences
World Rank #624,163
Ozioma Achugasim
Ozioma Achugasim
Natural Sciences
Chemical Sciences
World Rank #888,523
Millicent Uzoamaka Ibezim-Ezeani
Millicent Uzoamaka Ibezim-Ezeani
Natural Sciences
Chemical Sciences
World Rank #976,686
Oe Afieroho
Oe Afieroho
Natural Sciences
Chemical Sciences
World Rank #1,032,748
Mark Obinna Onyema
Mark Obinna Onyema
Natural Sciences
Chemical Sciences
World Rank #1,035,211
Nnaemeka Chinedu Ngobiri
Nnaemeka Chinedu Ngobiri
Natural Sciences
Chemical Sciences
World Rank #1,121,864
Kingsley John Orie
Kingsley John Orie
Natural Sciences
Chemical Sciences
World Rank #1,127,573
Pereware Adowei
Pereware Adowei
Natural Sciences
Chemical Sciences
World Rank #1,258,391
Remy Ukachukwu Duru
Remy Ukachukwu Duru
Natural Sciences
Chemical Sciences
World Rank #1,337,596
Nigeria: Top 10 Scientists in Natural Sciences
Isaac Lare Animasaun
Isaac Lare Animasaun
Natural Sciences
Mathematical Sciences
World Rank #53,267
Emeka Oguzie
Emeka Oguzie
Natural Sciences
Chemical Sciences
World Rank #56,385
Olugbenga Solomon Bello
Olugbenga Solomon Bello
Natural Sciences
Chemical Sciences
World Rank #58,712
Nnabuk Okon Eddy
Nnabuk Okon Eddy
Natural Sciences
Physics
World Rank #73,088
Oladele Osibanjo
Oladele Osibanjo
Natural Sciences
Chemical Sciences
World Rank #73,329
James Legg
James Legg
Natural Sciences
Biological Science
World Rank #76,283
Kayode Adebowale|Kayode O. Esuoso, K. O. Esuoso
Kayode Adebowale|Kayode O. Esuoso, K. O. Esuoso
Natural Sciences
Chemical Sciences
World Rank #76,535
Lukman O. Olasunkanmi
Lukman O. Olasunkanmi
Natural Sciences
Chemical Sciences
World Rank #88,045
Fabian Ezema
Fabian Ezema
Natural Sciences
Physics
World Rank #88,159
Moses M. Solomon
Moses M. Solomon
Natural Sciences
Chemical Sciences
World Rank #114,209
University of Port Harcourt: Top 10 Scientists
Iheanyi Omezuruike Okonko
Iheanyi Omezuruike Okonko
Medical and Health Sciences
Microbiology
World Rank #124,499
Akpan Ndem Ikot
Akpan Ndem Ikot
Natural Sciences
Physics
World Rank #142,611
Sunny O. Abarikwu
Sunny O. Abarikwu
Medical and Health Sciences
Biochemistry
World Rank #182,094
Peter James Kpolovie
Peter James Kpolovie
Education
Education (Other, All)
World Rank #182,480
Chukwudi Onyeaso
Chukwudi Onyeaso
Medical and Health Sciences
Dentistry
World Rank #237,510
Michael Horsfall Jnr
Michael Horsfall Jnr
Natural Sciences
Chemical Sciences
World Rank #251,620
Jude C. Ikewuchi
Jude C. Ikewuchi
Medical and Health Sciences
Pharmacy & Pharmaceutical Sciences
World Rank #277,760
Sampson Chimene Obiam
Sampson Chimene Obiam
Business & Management
Public Administration
World Rank #285,535
Catherine C. Ikewuchi
Catherine C. Ikewuchi
Medical and Health Sciences
Pharmacy & Pharmaceutical Sciences
World Rank #294,271
Ho Nwankwoala
Ho Nwankwoala
Engineering & Technology
Earth Sciences
World Rank #312,134