Thread by @mdaminu

NIGERIA’S TOP RESEARCHERS

Recently, I compiled a list of the most published scholars in Nigeria, including their total publications; total citations from their publications and number of documents that cited their works; the period within which the publications were made;...

...and their h-indexes.
The decision to collect the list was influenced by the lived realities of being a scholar and researcher in Nigeria, where so many reasons exist to put you at a disadvantaged position so that you are unable to compete favorably with other scholars, within

...your discipline, from around the world. But despite these disadvantages, some scholars in Nigeria still defy the odds by refusing to be weighed down by the extreme improbability of researching and publishing success, and have thus published in some of the most notable...

... academic journals around the world. These scholars deserve to be recognized and commended for their efforts.
To collect data presented in this piece, I used Scopus—the world’s largest abstract and citation database for peer reviewed literature. As a first step, I sourced...

...all documents affiliated to Nigeria. The total documents sourced were 94,771 produced from 163 affiliations over the period 1910 to present. The documents surveyed cut across almost all subject areas: as medicine; agricultural and biological sciences; biochemistry, genetics,..

... and molecular biology; social sciences; environmental science; engineering; pharmacology, toxicology and pharmaceutics; immunology and microbiology; earth and planetary sciences; chemistry; materials science; computer science; physics and astronomy; mathematics; arts and...

... humanities; energy; veterinary medicine; chemical engineering; nursing; economics, econometrics and finance; business, management and accounting; multidisciplinary; psychology; neuroscience; health professions; decision sciences; dentistry and undefined subjects.

The document types comprised original articles; conference papers; reviews; book chapters; letters; articles in press; notes; editorials; short surveys; erratum; books; abstract reports; conference reviews; reports and retracted documents.
However, as a guide to the scholars...

...list, the following instructions and limitations apply.
First, the names presented here are those of scholars that are resident in Nigeria only, and who are currently affiliated to institutions within Nigeria. Thus, scholars whose most recent papers had affiliations to...

...institutions abroad (even though their earlier papers may have had affiliations to institutions in Nigeria) were not considered within the survey because they were assumed to have left Nigeria.
Second, only scholars with a Scopus record of 100 publications and above were...

...considered in this survey.
Third, the order in which the list is presented here ensures that scholars are listed in order of decreasing publications. The author with the most publications is listed first and the one with the least publications is listed last.
Fourth, some...

...scholars do not have all their publications listed under a single Scopus author identifier. For such scholars with split or multiple identities, the number of publications under each identity was summed up to figure out their total number of publications.

Fifth, still, for authors with multiple Scopus author identities, upon the search of their names, the first profile typically contained the most publications, while the other profiles may contain as little as 1 publication (such as in the case of Wasiu Lanre Adeyemo), or 2...

...publications (such as in the case of Bolajoko Olubukunola Olusanya), although in the extreme case, such as that of Akintunde A. Sowunmi, the author was found to have 127 publications in the first profile, and 67 publications in the second profile. For these authors with...

...multiple profiles, information on their number of citations were derived by summing up all citations from all profiles, while their h-indexes were derived from the profile that had the most publications. In the extreme case (that is, Akintunde A. Sowunmi), the h-index of the..

... author was not reported due to the huge number of publications in his second profile which will affect genuineness of the result considerably.
Sixth, a scholar whose name is Orish Ebere Orisakwe of the Department of Experimental Pharmacology and Toxicology, University of...

...Port Harcourt, had 147 documents and 3517 total citations by 3254 documents, with publication range of 1988 to present, and h-index of 17. The author, was however, excluded from the list because other authors with the same surnames but different first names and middle names...

...had their publications muddled up under Orish Ebere Orisakwe’s profile. The author profile on Scopus does not contain the Open Researcher and Contributor ID (ORCID) to uniquely identify that the author had changed names in the past, and hence all publications listed under...

...the profile belonged to the same person. Therefore, all information relating to Orish Ebere Orisakwe’s publications presented above cannot be carried forward as factual.
Seventh, the h-index, proposed, in 2005, by J. E. Hirsch, of the University of California at San Diego,...

...is a guide to quantify an individual’s research output. The publication record of an individual and the citation record are used to derive the h-index. As an example, when a scholar has h-index of 10, it means that 10 papers out of their publications have...

...at least 10 citations.
Thus, below, is a list of the most published scholars in Nigeria.
1.Oyewusi Gureje, of the Department of Psychiatry, University of Ibadan is the most published scholar in Nigeria. He has published in the best journals in the field of medicine.

He currently has 338 publications and 18038 total citations by 14619 documents. His publication range is 1986 to present, and his h-index is 59.

2.Ganiyu Oboh, of the Department of Biochemistry, Federal University of Technology, Akure, has 220 publications and 2534 total...

...citations by 1696 documents. His publication range is 2001 to present, and his h-index is 25.

3.Adesola O. Ogunniyi, of the Department of Medicine, University College Hospital, Ibadan, has 198 publications and 5015 total citations by 3874 documents. His publication range...

...is 1987 to present, and his h-index is 32.

4.Akintunde A. Sowunmi, of the Malaria Research Laboratories, University of Ibadan, has 194 publications and 3252 total citations by 2089 documents. His publication range is 1988 to present.

5.Friday Ebhodaghe Okonofua, of the...

...University of Medical Sciences, Ondo City, has 190 publications and 3019 total citations by 2684 documents. His publication range is 1985 to present, and his h-index is 28.

6.Ebenezer Olatunde Farombi, of the Department of Biochemistry, University of Ibadan, has 179...

...publications and 3126 total citations by 2343 documents. His publication range is 1997 to present, and his h-index is 31.

7.Emmanuel Adoyi Ameh, of the Department of Surgery, National Hospital, Abuja, has 176 publications and 3058 total citations by 2657 documents.

His publication range is 1996 to present, and his h-index is 20.

8.Bolajoko Olubukunola Olusanya, of the Centre for Healthy Start Initiative, Lagos, has 164 publications and 5907 total citations by 4753 documents. His publication range is 2000 to present, and his h-index is 23.

9.Benjamin O. Osuntokun, (died 1995), of the Department of Medicine, University College Hospital, Ibadan, has 156 publications and 3476 total citations by 2545 documents. His publication range is 1964 to 1998, and his h-index is 30.

10.Felix Ebhodaghe Okieimen, of the...

Geo-Environmental and Climate Change Adaptation Research Center, University of Benin, has 150 publications and 1683 total citations by 1271 documents. His publication range is 1980 to present, and his h-index is 23.

11.Obinna Onwujekwe, of the Health Policy and...

...Research Group, University of Nigeria, Nsukka, has 148 publications and 2013 total citations by 1402 documents. His publication range is 1998 to present, and his h-index is 23.

12.Adelola A. Adeloye, of the Department of Surgery, University College Hospital, Ibadan,...

...has 147 publications and 934 total citations by 827 documents. His publication range is 1969 to 2010, and his h-index is 15.

13.Isiaka Ajani Ogunwande, of the Department of Chemistry, Lagos State University, has 146 publications and 972 total citations by 838 documents.

His publication range is 2000 to present, and his h-index is 14.

14.Isaac Folorunso Adewole, of the Department of Obstetrics and Gynecology, University of Ibadan, has 140 publications and 9339 total citations by 8173 documents. His publication range is 1992 to present, and...

...his h-index is 22.

15.Lateef A. Salako, of the Department of Pharmacology and Therapeutics, University of Ibadan, has 142 publications and 2366 total citations by 1796 documents. His publication range is 1966 to 2012, and his h-index is 29.

16.Peter Achunike Akah, of the Department of Pharmacology and Toxicology, University of Nigeria, Nsukka, has 133 publications and 1742 total citations by 1415 documents. His publication range is 1985 to present, and his h-index is 24.

17.Joseph Olusegun Ayo, of the...

...Department of Veterinary Physiology, Ahmadu Bello University, Zaria, has 130 publications and 850 total citations by 523 documents. His publication range is 1999 to present, and his h-index is 16.

18.Charles Okechukwu Esimone, of the Department of Pharmaceutical...

...Microbiology and Biopharmaceutics, Nnamdi Azikiwe University, Awka, has 127 publications and 954 total citations by 866 documents. His publication range is 1997 to 2016, and his h-index is 13.

19.Morenike Oluwatoyin Luwatoyin Folayan, of the Department of Child Dental...

...Health, Obafemi Awolowo University, Ife, has 124 publications and 622 total citations by 457 documents. Her publication range is 2001 to present, and her h-index is 13.

20.Anthony Amaechi Attama, of the Department of Pharmaceutics, University of Nigeria, Nsukka, has 117...

...publications and 1091 total citations by 756 documents. His publication range is 1997 to present, and his h-index is 18.

21.Wasiu Lanre Adeyemo, of the Department of Oral and Maxillofacial Surgery, University of Lagos, has 116 publications and 1245 total citations by 1097...

...documents. His publication range is 2003 to present, and his h-index is 20.

22.Olumbe Bassir, (Sierra Leonean, who spent most of his professional career in Nigeria, and died, 2001, in Ibadan) of the Department of Chemical Pathology, University of Ibadan, has 115...

...publications and 724 total citations by 605 documents. His publication range is 1954 to 1989, and his h-index is 14.

23.Andrew Jonathan Nok, (died November 2017) of the Department of Biochemistry, Ahmadu Bello University, Zaria, has 114 publications and 819 total citations..

...by 644 documents. His publication range is 1990 to present, and his h-index is 15.

24.Yekini Shehu, of the Department of Mathematics, University of Nigeria, Nsukka, has 112 publications and 244 total citations by 175 documents. His publication range is 2008 to present, and..

...his h-index is 7.

25.Robert A. Asiedu, of the International Institute of Tropical Agriculture, Ibadan, has 108 publications and 901 total citations by 533 documents. His publication range is 1990 to present, and his h-index is 16.

26.Akpan Ndem Ikot, of the Department of Physics, University of Port Harcourt, has 105 publications and 436 total citations by 228 documents. His publication range is 2008 to present, and his h-index is 10.

27.Michael Umale Adikwu, of the University of Abuja, has 104 publications and 679 total citations by 562 documents. His publication range is 1991 to present, and his h-index is 15.

28.Tolu O. Odugbemi, of the Department of Community Health and Primary Care, University of Lagos, has 103 publications and 829 total citations by 794 documents. His publication range is 1971 to 2016, and his h-index is 14.