University of Sierra Leone

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Short name

USL

Country, city

Sierra Leone, Freetown

045rztm55

Organization website

Publications

781

Citations

15 185

h-index

Top-3 journals

BMJ Global Health (16 publications)

BMJ Open (15 publications)

BMC Public Health (14 publications)

Top-3 organizations

London School of Hygiene & Tropical Medicine (61 publications)

King's College London (48 publications)

Njala University (44 publications)

Top-3 foreign organizations

London School of Hygiene & Tropical Medicine (61 publications)

King's College London (48 publications)

Johns Hopkins University (43 publications)

Most cited in 5 years

Found

Publication title

Publisher

Journal

Field of science

Countries

Found

Since 1966

Total publications

781

Total citations

15185

Citations per publication

19.44

Average publications per year

13.02

Average authors per publication

13.37

h-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

Top-30

Fields of science

	20 40 60 80 100 120
Public Health, Environmental and Occupational Health	Public Health, Environmental and Occupational Health, 118, 15.11% Public Health, Environmental and Occupational Health 118 publications, 15.11%
General Medicine	General Medicine, 108, 13.83% General Medicine 108 publications, 13.83%
Infectious Diseases	Infectious Diseases, 106, 13.57% Infectious Diseases 106 publications, 13.57%
Health Policy	Health Policy, 55, 7.04% Health Policy 55 publications, 7.04%
Ecology, Evolution, Behavior and Systematics	Ecology, Evolution, Behavior and Systematics, 34, 4.35% Ecology, Evolution, Behavior and Systematics 34 publications, 4.35%
Multidisciplinary	Multidisciplinary, 29, 3.71% Multidisciplinary 29 publications, 3.71%
Parasitology	Parasitology, 26, 3.33% Parasitology 26 publications, 3.33%
Pharmacology (medical)	Pharmacology (medical), 24, 3.07% Pharmacology (medical) 24 publications, 3.07%
Surgery	Surgery, 19, 2.43% Surgery 19 publications, 2.43%
Virology	Virology, 19, 2.43% Virology 19 publications, 2.43%
Microbiology (medical)	Microbiology (medical), 18, 2.3% Microbiology (medical) 18 publications, 2.3%
Sociology and Political Science	Sociology and Political Science, 18, 2.3% Sociology and Political Science 18 publications, 2.3%
Geography, Planning and Development	Geography, Planning and Development, 18, 2.3% Geography, Planning and Development 18 publications, 2.3%
Management, Monitoring, Policy and Law	Management, Monitoring, Policy and Law, 18, 2.3% Management, Monitoring, Policy and Law 18 publications, 2.3%
General Immunology and Microbiology	General Immunology and Microbiology, 17, 2.18% General Immunology and Microbiology 17 publications, 2.18%
Health (social science)	Health (social science), 17, 2.18% Health (social science) 17 publications, 2.18%
Library and Information Sciences	Library and Information Sciences, 16, 2.05% Library and Information Sciences 16 publications, 2.05%
Immunology and Allergy	Immunology and Allergy, 16, 2.05% Immunology and Allergy 16 publications, 2.05%
Pharmacology	Pharmacology, 15, 1.92% Pharmacology 15 publications, 1.92%
General Materials Science	General Materials Science, 14, 1.79% General Materials Science 14 publications, 1.79%
Aquatic Science	Aquatic Science, 14, 1.79% Aquatic Science 14 publications, 1.79%
History	History, 14, 1.79% History 14 publications, 1.79%
General Biochemistry, Genetics and Molecular Biology	General Biochemistry, Genetics and Molecular Biology, 12, 1.54% General Biochemistry, Genetics and Molecular Biology 12 publications, 1.54%
Genetics	Genetics, 12, 1.54% Genetics 12 publications, 1.54%
Health, Toxicology and Mutagenesis	Health, Toxicology and Mutagenesis, 12, 1.54% Health, Toxicology and Mutagenesis 12 publications, 1.54%
General Environmental Science	General Environmental Science, 12, 1.54% General Environmental Science 12 publications, 1.54%
Development	Development, 12, 1.54% Development 12 publications, 1.54%
Ecology	Ecology, 11, 1.41% Ecology 11 publications, 1.41%
Geology	Geology, 11, 1.41% Geology 11 publications, 1.41%
Medicine (miscellaneous)	Medicine (miscellaneous), 10, 1.28% Medicine (miscellaneous) 10 publications, 1.28%
	20 40 60 80 100 120

Journals

	2 4 6 8 10 12 14 16
BMJ Global Health	BMJ Global Health, 16, 2.05% BMJ Global Health 16 publications, 2.05%
BMJ Open	BMJ Open, 15, 1.92% BMJ Open 15 publications, 1.92%
BMC Public Health	BMC Public Health, 14, 1.79% BMC Public Health 14 publications, 1.79%
Tropical Medicine and Infectious Disease	Tropical Medicine and Infectious Disease, 13, 1.66% Tropical Medicine and Infectious Disease 13 publications, 1.66%
Nature	Nature, 11, 1.41% Nature 11 publications, 1.41%
Journal of Infectious Diseases	Journal of Infectious Diseases, 11, 1.41% Journal of Infectious Diseases 11 publications, 1.41%
SSRN Electronic Journal	SSRN Electronic Journal, 11, 1.41% SSRN Electronic Journal 11 publications, 1.41%
BMC Health Services Research	BMC Health Services Research, 10, 1.28% BMC Health Services Research 10 publications, 1.28%
BMC Infectious Diseases	BMC Infectious Diseases, 10, 1.28% BMC Infectious Diseases 10 publications, 1.28%
American Journal of Tropical Medicine and Hygiene	American Journal of Tropical Medicine and Hygiene, 9, 1.15% American Journal of Tropical Medicine and Hygiene 9 publications, 1.15%
The Lancet	The Lancet, 9, 1.15% The Lancet 9 publications, 1.15%
PLoS ONE	PLoS ONE, 9, 1.15% PLoS ONE 9 publications, 1.15%
International Journal of Environmental Research and Public Health	International Journal of Environmental Research and Public Health, 7, 0.9% International Journal of Environmental Research and Public Health 7 publications, 0.9%
The Lancet Infectious Diseases	The Lancet Infectious Diseases, 7, 0.9% The Lancet Infectious Diseases 7 publications, 0.9%
Public Health Challenges	Public Health Challenges, 7, 0.9% Public Health Challenges 7 publications, 0.9%
Health Policy and Planning	Health Policy and Planning, 6, 0.77% Health Policy and Planning 6 publications, 0.77%
Global Public Health	Global Public Health, 6, 0.77% Global Public Health 6 publications, 0.77%
Conflict and Health	Conflict and Health, 6, 0.77% Conflict and Health 6 publications, 0.77%
PLoS Neglected Tropical Diseases	PLoS Neglected Tropical Diseases, 6, 0.77% PLoS Neglected Tropical Diseases 6 publications, 0.77%
Journal of Zoology	Journal of Zoology, 6, 0.77% Journal of Zoology 6 publications, 0.77%
Library Review	Library Review, 6, 0.77% Library Review 6 publications, 0.77%
International Journal of Infectious Diseases	International Journal of Infectious Diseases, 5, 0.64% International Journal of Infectious Diseases 5 publications, 0.64%
Canadian Journal of African Studies	Canadian Journal of African Studies, 5, 0.64% Canadian Journal of African Studies 5 publications, 0.64%
Tropical Medicine and International Health	Tropical Medicine and International Health, 5, 0.64% Tropical Medicine and International Health 5 publications, 0.64%
Annals of Botany	Annals of Botany, 4, 0.51% Annals of Botany 4 publications, 0.51%
Surgery (US)	Surgery (US), 4, 0.51% Surgery (US) 4 publications, 0.51%
Mathematical Problems in Engineering	Mathematical Problems in Engineering, 4, 0.51% Mathematical Problems in Engineering 4 publications, 0.51%
Open Forum Infectious Diseases	Open Forum Infectious Diseases, 4, 0.51% Open Forum Infectious Diseases 4 publications, 0.51%
Global Health Action	Global Health Action, 4, 0.51% Global Health Action 4 publications, 0.51%
Malaria Journal	Malaria Journal, 4, 0.51% Malaria Journal 4 publications, 0.51%
	2 4 6 8 10 12 14 16

Publishers

	20 40 60 80 100 120 140 160 180 200
Springer Nature	Springer Nature, 184, 23.56% Springer Nature 184 publications, 23.56%
Elsevier	Elsevier, 135, 17.29% Elsevier 135 publications, 17.29%
Taylor & Francis	Taylor & Francis, 72, 9.22% Taylor & Francis 72 publications, 9.22%
Wiley	Wiley, 58, 7.43% Wiley 58 publications, 7.43%
MDPI	MDPI, 52, 6.66% MDPI 52 publications, 6.66%
Oxford University Press	Oxford University Press, 45, 5.76% Oxford University Press 45 publications, 5.76%
BMJ	BMJ, 37, 4.74% BMJ 37 publications, 4.74%
SAGE	SAGE, 29, 3.71% SAGE 29 publications, 3.71%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 22, 2.82% Public Library of Science (PLoS) 22 publications, 2.82%
Cambridge University Press	Cambridge University Press, 19, 2.43% Cambridge University Press 19 publications, 2.43%
Hindawi Limited	Hindawi Limited, 16, 2.05% Hindawi Limited 16 publications, 2.05%
American Society of Tropical Medicine and Hygiene	American Society of Tropical Medicine and Hygiene, 9, 1.15% American Society of Tropical Medicine and Hygiene 9 publications, 1.15%
Social Science Electronic Publishing	Social Science Electronic Publishing, 9, 1.15% Social Science Electronic Publishing 9 publications, 1.15%
Frontiers Media S.A.	Frontiers Media S.A., 8, 1.02% Frontiers Media S.A. 8 publications, 1.02%
Emerald	Emerald, 7, 0.9% Emerald 7 publications, 0.9%
AMO Publisher	AMO Publisher, 6, 0.77% AMO Publisher 6 publications, 0.77%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 5, 0.64% Ovid Technologies (Wolters Kluwer Health) 5 publications, 0.64%
American Chemical Society (ACS)	American Chemical Society (ACS), 4, 0.51% American Chemical Society (ACS) 4 publications, 0.51%
John Benjamins Publishing Company	John Benjamins Publishing Company, 4, 0.51% John Benjamins Publishing Company 4 publications, 0.51%
Brill	Brill, 4, 0.51% Brill 4 publications, 0.51%
IWA Publishing	IWA Publishing, 3, 0.38% IWA Publishing 3 publications, 0.38%
IOP Publishing	IOP Publishing, 3, 0.38% IOP Publishing 3 publications, 0.38%
American Medical Association (AMA)	American Medical Association (AMA), 3, 0.38% American Medical Association (AMA) 3 publications, 0.38%
Academic Journals	Academic Journals, 3, 0.38% Academic Journals 3 publications, 0.38%
Ubiquity Press	Ubiquity Press, 3, 0.38% Ubiquity Press 3 publications, 0.38%
Georg Thieme Verlag KG	Georg Thieme Verlag KG, 2, 0.26% Georg Thieme Verlag KG 2 publications, 0.26%
American Society for Microbiology	American Society for Microbiology, 2, 0.26% American Society for Microbiology 2 publications, 0.26%
Proceedings of the National Academy of Sciences (PNAS)	Proceedings of the National Academy of Sciences (PNAS), 2, 0.26% Proceedings of the National Academy of Sciences (PNAS) 2 publications, 0.26%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 2, 0.26% American Association for the Advancement of Science (AAAS) 2 publications, 0.26%
AIP Publishing	AIP Publishing, 2, 0.26% AIP Publishing 2 publications, 0.26%
	20 40 60 80 100 120 140 160 180 200

With other organizations

	10 20 30 40 50 60 70
London School of Hygiene & Tropical Medicine	London School of Hygiene & Tropical Medicine, 61, 7.81% London School of Hygiene & Tropical Medicine 61 publications, 7.81%
King's College London	King's College London, 48, 6.15% King's College London 48 publications, 6.15%
Njala University	Njala University, 44, 5.63% Njala University 44 publications, 5.63%
Johns Hopkins University	Johns Hopkins University, 43, 5.51% Johns Hopkins University 43 publications, 5.51%
University of Edinburgh	University of Edinburgh, 38, 4.87% University of Edinburgh 38 publications, 4.87%
Case Western Reserve University	Case Western Reserve University, 33, 4.23% Case Western Reserve University 33 publications, 4.23%
University of Ibadan	University of Ibadan, 32, 4.1% University of Ibadan 32 publications, 4.1%
Liverpool School of Tropical Medicine	Liverpool School of Tropical Medicine, 29, 3.71% Liverpool School of Tropical Medicine 29 publications, 3.71%
Southern Cross University	Southern Cross University, 26, 3.33% Southern Cross University 26 publications, 3.33%
University of the Witwatersrand	University of the Witwatersrand, 26, 3.33% University of the Witwatersrand 26 publications, 3.33%
Tulane University	Tulane University, 24, 3.07% Tulane University 24 publications, 3.07%
Centers for Disease Control and Prevention	Centers for Disease Control and Prevention, 24, 3.07% Centers for Disease Control and Prevention 24 publications, 3.07%
University College Hospital, Ibadan	University College Hospital, Ibadan, 23, 2.94% University College Hospital, Ibadan 23 publications, 2.94%
University of Oxford	University of Oxford, 22, 2.82% University of Oxford 22 publications, 2.82%
Makerere University	Makerere University, 22, 2.82% Makerere University 22 publications, 2.82%
Karolinska Institute	Karolinska Institute, 20, 2.56% Karolinska Institute 20 publications, 2.56%
University of Technology Sydney	University of Technology Sydney, 20, 2.56% University of Technology Sydney 20 publications, 2.56%
Imperial College London	Imperial College London, 19, 2.43% Imperial College London 19 publications, 2.43%
University of Cape Town	University of Cape Town, 19, 2.43% University of Cape Town 19 publications, 2.43%
Harvard University	Harvard University, 19, 2.43% Harvard University 19 publications, 2.43%
Kwame Nkrumah University of Science and Technology	Kwame Nkrumah University of Science and Technology, 19, 2.43% Kwame Nkrumah University of Science and Technology 19 publications, 2.43%
Norwegian University of Science and Technology	Norwegian University of Science and Technology, 16, 2.05% Norwegian University of Science and Technology 16 publications, 2.05%
University of Birmingham	University of Birmingham, 16, 2.05% University of Birmingham 16 publications, 2.05%
St Olav's University Hospital	St Olav's University Hospital, 15, 1.92% St Olav's University Hospital 15 publications, 1.92%
University of Glasgow	University of Glasgow, 15, 1.92% University of Glasgow 15 publications, 1.92%
University of Basel	University of Basel, 14, 1.79% University of Basel 14 publications, 1.79%
Swiss Tropical and Public Health Institute	Swiss Tropical and Public Health Institute, 14, 1.79% Swiss Tropical and Public Health Institute 14 publications, 1.79%
University of Lagos	University of Lagos, 14, 1.79% University of Lagos 14 publications, 1.79%
University of Washington	University of Washington, 14, 1.79% University of Washington 14 publications, 1.79%
Stellenbosch University	Stellenbosch University, 13, 1.66% Stellenbosch University 13 publications, 1.66%
	10 20 30 40 50 60 70

With foreign organizations

	10 20 30 40 50 60 70
London School of Hygiene & Tropical Medicine	London School of Hygiene & Tropical Medicine, 61, 7.81% London School of Hygiene & Tropical Medicine 61 publications, 7.81%
King's College London	King's College London, 48, 6.15% King's College London 48 publications, 6.15%
Johns Hopkins University	Johns Hopkins University, 43, 5.51% Johns Hopkins University 43 publications, 5.51%
University of Edinburgh	University of Edinburgh, 38, 4.87% University of Edinburgh 38 publications, 4.87%
Case Western Reserve University	Case Western Reserve University, 33, 4.23% Case Western Reserve University 33 publications, 4.23%
University of Ibadan	University of Ibadan, 32, 4.1% University of Ibadan 32 publications, 4.1%
Liverpool School of Tropical Medicine	Liverpool School of Tropical Medicine, 29, 3.71% Liverpool School of Tropical Medicine 29 publications, 3.71%
Southern Cross University	Southern Cross University, 26, 3.33% Southern Cross University 26 publications, 3.33%
University of the Witwatersrand	University of the Witwatersrand, 26, 3.33% University of the Witwatersrand 26 publications, 3.33%
Tulane University	Tulane University, 24, 3.07% Tulane University 24 publications, 3.07%
Centers for Disease Control and Prevention	Centers for Disease Control and Prevention, 24, 3.07% Centers for Disease Control and Prevention 24 publications, 3.07%
University College Hospital, Ibadan	University College Hospital, Ibadan, 23, 2.94% University College Hospital, Ibadan 23 publications, 2.94%
University of Oxford	University of Oxford, 22, 2.82% University of Oxford 22 publications, 2.82%
Makerere University	Makerere University, 22, 2.82% Makerere University 22 publications, 2.82%
Karolinska Institute	Karolinska Institute, 20, 2.56% Karolinska Institute 20 publications, 2.56%
University of Technology Sydney	University of Technology Sydney, 20, 2.56% University of Technology Sydney 20 publications, 2.56%
Imperial College London	Imperial College London, 19, 2.43% Imperial College London 19 publications, 2.43%
University of Cape Town	University of Cape Town, 19, 2.43% University of Cape Town 19 publications, 2.43%
Harvard University	Harvard University, 19, 2.43% Harvard University 19 publications, 2.43%
Kwame Nkrumah University of Science and Technology	Kwame Nkrumah University of Science and Technology, 19, 2.43% Kwame Nkrumah University of Science and Technology 19 publications, 2.43%
Norwegian University of Science and Technology	Norwegian University of Science and Technology, 16, 2.05% Norwegian University of Science and Technology 16 publications, 2.05%
University of Birmingham	University of Birmingham, 16, 2.05% University of Birmingham 16 publications, 2.05%
St Olav's University Hospital	St Olav's University Hospital, 15, 1.92% St Olav's University Hospital 15 publications, 1.92%
University of Glasgow	University of Glasgow, 15, 1.92% University of Glasgow 15 publications, 1.92%
University of Basel	University of Basel, 14, 1.79% University of Basel 14 publications, 1.79%
Swiss Tropical and Public Health Institute	Swiss Tropical and Public Health Institute, 14, 1.79% Swiss Tropical and Public Health Institute 14 publications, 1.79%
University of Lagos	University of Lagos, 14, 1.79% University of Lagos 14 publications, 1.79%
University of Washington	University of Washington, 14, 1.79% University of Washington 14 publications, 1.79%
Stellenbosch University	Stellenbosch University, 13, 1.66% Stellenbosch University 13 publications, 1.66%
Obafemi Awolowo University	Obafemi Awolowo University, 13, 1.66% Obafemi Awolowo University 13 publications, 1.66%
	10 20 30 40 50 60 70

With other countries

	50 100 150 200 250
United Kingdom	United Kingdom, 245, 31.37% United Kingdom 245 publications, 31.37%
USA	USA, 173, 22.15% USA 173 publications, 22.15%
Nigeria	Nigeria, 90, 11.52% Nigeria 90 publications, 11.52%
China	China, 64, 8.19% China 64 publications, 8.19%
Australia	Australia, 61, 7.81% Australia 61 publications, 7.81%
Ghana	Ghana, 55, 7.04% Ghana 55 publications, 7.04%
South Africa	South Africa, 54, 6.91% South Africa 54 publications, 6.91%
Netherlands	Netherlands, 41, 5.25% Netherlands 41 publications, 5.25%
Uganda	Uganda, 41, 5.25% Uganda 41 publications, 5.25%
Switzerland	Switzerland, 41, 5.25% Switzerland 41 publications, 5.25%
Sweden	Sweden, 41, 5.25% Sweden 41 publications, 5.25%
Kenya	Kenya, 40, 5.12% Kenya 40 publications, 5.12%
France	France, 39, 4.99% France 39 publications, 4.99%
Germany	Germany, 38, 4.87% Germany 38 publications, 4.87%
India	India, 31, 3.97% India 31 publications, 3.97%
Italy	Italy, 25, 3.2% Italy 25 publications, 3.2%
Norway	Norway, 25, 3.2% Norway 25 publications, 3.2%
Canada	Canada, 23, 2.94% Canada 23 publications, 2.94%
Malawi	Malawi, 21, 2.69% Malawi 21 publications, 2.69%
Ethiopia	Ethiopia, 21, 2.69% Ethiopia 21 publications, 2.69%
Spain	Spain, 20, 2.56% Spain 20 publications, 2.56%
Tanzania	Tanzania, 20, 2.56% Tanzania 20 publications, 2.56%
Belgium	Belgium, 19, 2.43% Belgium 19 publications, 2.43%
Rwanda	Rwanda, 17, 2.18% Rwanda 17 publications, 2.18%
Brazil	Brazil, 16, 2.05% Brazil 16 publications, 2.05%
Cameroon	Cameroon, 16, 2.05% Cameroon 16 publications, 2.05%
Liberia	Liberia, 16, 2.05% Liberia 16 publications, 2.05%
Mozambique	Mozambique, 16, 2.05% Mozambique 16 publications, 2.05%
Saudi Arabia	Saudi Arabia, 16, 2.05% Saudi Arabia 16 publications, 2.05%
	50 100 150 200 250

We do not take into account publications without a DOI.
Statistics recalculated daily.
Publications published earlier than 1966 are ignored in the statistics.
The horizontal charts show the 30 top positions.
Journals quartiles values are relevant at the moment.