University of Sierra Leone

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Short name

USL

Country, city

Sierra Leone, Freetown

045rztm55

Organization website

Publications

863

Citations

17 208

h-index

Top-3 journals

BMJ Global Health (20 publications)

BMC Public Health (19 publications)

BMJ Open (16 publications)

Top-3 organizations

London School of Hygiene & Tropical Medicine (67 publications)

King's College London (52 publications)

Njala University (48 publications)

Top-3 foreign organizations

London School of Hygiene & Tropical Medicine (67 publications)

King's College London (52 publications)

Johns Hopkins University (43 publications)

Most cited in 5 years

Found

Publication title

Publisher

Journal

Countries

Found

Since 1966

Total publications

863

Total citations

17208

Citations per publication

19.94

Average publications per year

14.15

Average authors per publication

13.04

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, 13.67% Public Health, Environmental and Occupational Health 118 publications, 13.67%
General Medicine	General Medicine, 108, 12.51% General Medicine 108 publications, 12.51%
Infectious Diseases	Infectious Diseases, 106, 12.28% Infectious Diseases 106 publications, 12.28%
Health Policy	Health Policy, 55, 6.37% Health Policy 55 publications, 6.37%
Ecology, Evolution, Behavior and Systematics	Ecology, Evolution, Behavior and Systematics, 34, 3.94% Ecology, Evolution, Behavior and Systematics 34 publications, 3.94%
Multidisciplinary	Multidisciplinary, 29, 3.36% Multidisciplinary 29 publications, 3.36%
Parasitology	Parasitology, 26, 3.01% Parasitology 26 publications, 3.01%
Pharmacology (medical)	Pharmacology (medical), 24, 2.78% Pharmacology (medical) 24 publications, 2.78%
Surgery	Surgery, 19, 2.2% Surgery 19 publications, 2.2%
Virology	Virology, 19, 2.2% Virology 19 publications, 2.2%
Microbiology (medical)	Microbiology (medical), 18, 2.09% Microbiology (medical) 18 publications, 2.09%
Sociology and Political Science	Sociology and Political Science, 18, 2.09% Sociology and Political Science 18 publications, 2.09%
Geography, Planning and Development	Geography, Planning and Development, 18, 2.09% Geography, Planning and Development 18 publications, 2.09%
Management, Monitoring, Policy and Law	Management, Monitoring, Policy and Law, 18, 2.09% Management, Monitoring, Policy and Law 18 publications, 2.09%
General Immunology and Microbiology	General Immunology and Microbiology, 17, 1.97% General Immunology and Microbiology 17 publications, 1.97%
Health (social science)	Health (social science), 17, 1.97% Health (social science) 17 publications, 1.97%
Library and Information Sciences	Library and Information Sciences, 16, 1.85% Library and Information Sciences 16 publications, 1.85%
Immunology and Allergy	Immunology and Allergy, 16, 1.85% Immunology and Allergy 16 publications, 1.85%
Pharmacology	Pharmacology, 15, 1.74% Pharmacology 15 publications, 1.74%
General Materials Science	General Materials Science, 14, 1.62% General Materials Science 14 publications, 1.62%
Aquatic Science	Aquatic Science, 14, 1.62% Aquatic Science 14 publications, 1.62%
History	History, 14, 1.62% History 14 publications, 1.62%
General Biochemistry, Genetics and Molecular Biology	General Biochemistry, Genetics and Molecular Biology, 12, 1.39% General Biochemistry, Genetics and Molecular Biology 12 publications, 1.39%
Genetics	Genetics, 12, 1.39% Genetics 12 publications, 1.39%
Health, Toxicology and Mutagenesis	Health, Toxicology and Mutagenesis, 12, 1.39% Health, Toxicology and Mutagenesis 12 publications, 1.39%
General Environmental Science	General Environmental Science, 12, 1.39% General Environmental Science 12 publications, 1.39%
Development	Development, 12, 1.39% Development 12 publications, 1.39%
Ecology	Ecology, 11, 1.27% Ecology 11 publications, 1.27%
Geology	Geology, 11, 1.27% Geology 11 publications, 1.27%
Medicine (miscellaneous)	Medicine (miscellaneous), 10, 1.16% Medicine (miscellaneous) 10 publications, 1.16%
	20 40 60 80 100 120

Journals

	5 10 15 20
BMJ Global Health	BMJ Global Health, 20, 2.32% BMJ Global Health 20 publications, 2.32%
BMC Public Health	BMC Public Health, 19, 2.2% BMC Public Health 19 publications, 2.2%
BMJ Open	BMJ Open, 16, 1.85% BMJ Open 16 publications, 1.85%
Tropical Medicine and Infectious Disease	Tropical Medicine and Infectious Disease, 13, 1.51% Tropical Medicine and Infectious Disease 13 publications, 1.51%
The Lancet	The Lancet, 12, 1.39% The Lancet 12 publications, 1.39%
PLoS ONE	PLoS ONE, 12, 1.39% PLoS ONE 12 publications, 1.39%
SSRN Electronic Journal	SSRN Electronic Journal, 12, 1.39% SSRN Electronic Journal 12 publications, 1.39%
BMC Health Services Research	BMC Health Services Research, 11, 1.27% BMC Health Services Research 11 publications, 1.27%
Nature	Nature, 11, 1.27% Nature 11 publications, 1.27%
Journal of Infectious Diseases	Journal of Infectious Diseases, 11, 1.27% Journal of Infectious Diseases 11 publications, 1.27%
American Journal of Tropical Medicine and Hygiene	American Journal of Tropical Medicine and Hygiene, 10, 1.16% American Journal of Tropical Medicine and Hygiene 10 publications, 1.16%
BMC Infectious Diseases	BMC Infectious Diseases, 10, 1.16% BMC Infectious Diseases 10 publications, 1.16%
The Lancet Infectious Diseases	The Lancet Infectious Diseases, 8, 0.93% The Lancet Infectious Diseases 8 publications, 0.93%
Public Health Challenges	Public Health Challenges, 8, 0.93% Public Health Challenges 8 publications, 0.93%
International Journal of Environmental Research and Public Health	International Journal of Environmental Research and Public Health, 7, 0.81% International Journal of Environmental Research and Public Health 7 publications, 0.81%
International Journal of Infectious Diseases	International Journal of Infectious Diseases, 6, 0.7% International Journal of Infectious Diseases 6 publications, 0.7%
Health Policy and Planning	Health Policy and Planning, 6, 0.7% Health Policy and Planning 6 publications, 0.7%
Global Public Health	Global Public Health, 6, 0.7% Global Public Health 6 publications, 0.7%
Conflict and Health	Conflict and Health, 6, 0.7% Conflict and Health 6 publications, 0.7%
PLoS Neglected Tropical Diseases	PLoS Neglected Tropical Diseases, 6, 0.7% PLoS Neglected Tropical Diseases 6 publications, 0.7%
Journal of Zoology	Journal of Zoology, 6, 0.7% Journal of Zoology 6 publications, 0.7%
Library Review	Library Review, 6, 0.7% Library Review 6 publications, 0.7%
PLOS Global Public Health	PLOS Global Public Health, 6, 0.7% PLOS Global Public Health 6 publications, 0.7%
Malaria Journal	Malaria Journal, 5, 0.58% Malaria Journal 5 publications, 0.58%
Canadian Journal of African Studies	Canadian Journal of African Studies, 5, 0.58% Canadian Journal of African Studies 5 publications, 0.58%
Tropical Medicine and International Health	Tropical Medicine and International Health, 5, 0.58% Tropical Medicine and International Health 5 publications, 0.58%
Annals of Botany	Annals of Botany, 4, 0.46% Annals of Botany 4 publications, 0.46%
Surgery (US)	Surgery (US), 4, 0.46% Surgery (US) 4 publications, 0.46%
International Journal of Stroke	International Journal of Stroke, 4, 0.46% International Journal of Stroke 4 publications, 0.46%
Mathematical Problems in Engineering	Mathematical Problems in Engineering, 4, 0.46% Mathematical Problems in Engineering 4 publications, 0.46%
	5 10 15 20

Publishers

	50 100 150 200 250
Springer Nature	Springer Nature, 203, 23.52% Springer Nature 203 publications, 23.52%
Elsevier	Elsevier, 161, 18.66% Elsevier 161 publications, 18.66%
Taylor & Francis	Taylor & Francis, 73, 8.46% Taylor & Francis 73 publications, 8.46%
Wiley	Wiley, 62, 7.18% Wiley 62 publications, 7.18%
MDPI	MDPI, 54, 6.26% MDPI 54 publications, 6.26%
Oxford University Press	Oxford University Press, 45, 5.21% Oxford University Press 45 publications, 5.21%
BMJ	BMJ, 43, 4.98% BMJ 43 publications, 4.98%
SAGE	SAGE, 31, 3.59% SAGE 31 publications, 3.59%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 27, 3.13% Public Library of Science (PLoS) 27 publications, 3.13%
Cambridge University Press	Cambridge University Press, 19, 2.2% Cambridge University Press 19 publications, 2.2%
Hindawi Limited	Hindawi Limited, 16, 1.85% Hindawi Limited 16 publications, 1.85%
Frontiers Media S.A.	Frontiers Media S.A., 10, 1.16% Frontiers Media S.A. 10 publications, 1.16%
American Society of Tropical Medicine and Hygiene	American Society of Tropical Medicine and Hygiene, 10, 1.16% American Society of Tropical Medicine and Hygiene 10 publications, 1.16%
Social Science Electronic Publishing	Social Science Electronic Publishing, 9, 1.04% Social Science Electronic Publishing 9 publications, 1.04%
Emerald	Emerald, 7, 0.81% Emerald 7 publications, 0.81%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 7, 0.81% Ovid Technologies (Wolters Kluwer Health) 7 publications, 0.81%
AMO Publisher	AMO Publisher, 6, 0.7% AMO Publisher 6 publications, 0.7%
F1000 Research	F1000 Research, 5, 0.58% F1000 Research 5 publications, 0.58%
American Chemical Society (ACS)	American Chemical Society (ACS), 4, 0.46% American Chemical Society (ACS) 4 publications, 0.46%
John Benjamins Publishing Company	John Benjamins Publishing Company, 4, 0.46% John Benjamins Publishing Company 4 publications, 0.46%
Brill	Brill, 4, 0.46% Brill 4 publications, 0.46%
International Union Against Tuberculosis and Lung Disease	International Union Against Tuberculosis and Lung Disease, 4, 0.46% International Union Against Tuberculosis and Lung Disease 4 publications, 0.46%
AIP Publishing	AIP Publishing, 3, 0.35% AIP Publishing 3 publications, 0.35%
IWA Publishing	IWA Publishing, 3, 0.35% IWA Publishing 3 publications, 0.35%
IOP Publishing	IOP Publishing, 3, 0.35% IOP Publishing 3 publications, 0.35%
American Medical Association (AMA)	American Medical Association (AMA), 3, 0.35% American Medical Association (AMA) 3 publications, 0.35%
Academic Journals	Academic Journals, 3, 0.35% Academic Journals 3 publications, 0.35%
Ubiquity Press	Ubiquity Press, 3, 0.35% Ubiquity Press 3 publications, 0.35%
Georg Thieme Verlag KG	Georg Thieme Verlag KG, 2, 0.23% Georg Thieme Verlag KG 2 publications, 0.23%
American Society for Microbiology	American Society for Microbiology, 2, 0.23% American Society for Microbiology 2 publications, 0.23%
	50 100 150 200 250

With other organizations

	10 20 30 40 50 60 70
London School of Hygiene & Tropical Medicine	London School of Hygiene & Tropical Medicine, 67, 7.76% London School of Hygiene & Tropical Medicine 67 publications, 7.76%
King's College London	King's College London, 52, 6.03% King's College London 52 publications, 6.03%
Njala University	Njala University, 48, 5.56% Njala University 48 publications, 5.56%
Johns Hopkins University	Johns Hopkins University, 43, 4.98% Johns Hopkins University 43 publications, 4.98%
Queen Margaret University	Queen Margaret University, 37, 4.29% Queen Margaret University 37 publications, 4.29%
University of Ibadan	University of Ibadan, 36, 4.17% University of Ibadan 36 publications, 4.17%
Case Western Reserve University	Case Western Reserve University, 33, 3.82% Case Western Reserve University 33 publications, 3.82%
Liverpool School of Tropical Medicine	Liverpool School of Tropical Medicine, 31, 3.59% Liverpool School of Tropical Medicine 31 publications, 3.59%
University of the Witwatersrand	University of the Witwatersrand, 29, 3.36% University of the Witwatersrand 29 publications, 3.36%
Southern Cross University	Southern Cross University, 28, 3.24% Southern Cross University 28 publications, 3.24%
Tulane University	Tulane University, 28, 3.24% Tulane University 28 publications, 3.24%
Makerere University	Makerere University, 26, 3.01% Makerere University 26 publications, 3.01%
Centers for Disease Control and Prevention	Centers for Disease Control and Prevention, 26, 3.01% Centers for Disease Control and Prevention 26 publications, 3.01%
University of Oxford	University of Oxford, 25, 2.9% University of Oxford 25 publications, 2.9%
University College Hospital, Ibadan	University College Hospital, Ibadan, 23, 2.67% University College Hospital, Ibadan 23 publications, 2.67%
Kwame Nkrumah University of Science and Technology	Kwame Nkrumah University of Science and Technology, 23, 2.67% Kwame Nkrumah University of Science and Technology 23 publications, 2.67%
University of Cape Town	University of Cape Town, 22, 2.55% University of Cape Town 22 publications, 2.55%
Karolinska Institute	Karolinska Institute, 21, 2.43% Karolinska Institute 21 publications, 2.43%
University of Technology Sydney	University of Technology Sydney, 20, 2.32% University of Technology Sydney 20 publications, 2.32%
Harvard University	Harvard University, 20, 2.32% Harvard University 20 publications, 2.32%
Imperial College London	Imperial College London, 19, 2.2% Imperial College London 19 publications, 2.2%
Norwegian University of Science and Technology	Norwegian University of Science and Technology, 19, 2.2% Norwegian University of Science and Technology 19 publications, 2.2%
St Olav's University Hospital	St Olav's University Hospital, 18, 2.09% St Olav's University Hospital 18 publications, 2.09%
University of Birmingham	University of Birmingham, 17, 1.97% University of Birmingham 17 publications, 1.97%
University of Ghana	University of Ghana, 17, 1.97% University of Ghana 17 publications, 1.97%
University of Edinburgh	University of Edinburgh, 16, 1.85% University of Edinburgh 16 publications, 1.85%
University of Glasgow	University of Glasgow, 16, 1.85% University of Glasgow 16 publications, 1.85%
University of Washington	University of Washington, 16, 1.85% University of Washington 16 publications, 1.85%
University of Basel	University of Basel, 14, 1.62% University of Basel 14 publications, 1.62%
Swiss Tropical and Public Health Institute	Swiss Tropical and Public Health Institute, 14, 1.62% Swiss Tropical and Public Health Institute 14 publications, 1.62%
	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, 67, 7.76% London School of Hygiene & Tropical Medicine 67 publications, 7.76%
King's College London	King's College London, 52, 6.03% King's College London 52 publications, 6.03%
Johns Hopkins University	Johns Hopkins University, 43, 4.98% Johns Hopkins University 43 publications, 4.98%
Queen Margaret University	Queen Margaret University, 37, 4.29% Queen Margaret University 37 publications, 4.29%
University of Ibadan	University of Ibadan, 36, 4.17% University of Ibadan 36 publications, 4.17%
Case Western Reserve University	Case Western Reserve University, 33, 3.82% Case Western Reserve University 33 publications, 3.82%
Liverpool School of Tropical Medicine	Liverpool School of Tropical Medicine, 31, 3.59% Liverpool School of Tropical Medicine 31 publications, 3.59%
University of the Witwatersrand	University of the Witwatersrand, 29, 3.36% University of the Witwatersrand 29 publications, 3.36%
Southern Cross University	Southern Cross University, 28, 3.24% Southern Cross University 28 publications, 3.24%
Tulane University	Tulane University, 28, 3.24% Tulane University 28 publications, 3.24%
Makerere University	Makerere University, 26, 3.01% Makerere University 26 publications, 3.01%
Centers for Disease Control and Prevention	Centers for Disease Control and Prevention, 26, 3.01% Centers for Disease Control and Prevention 26 publications, 3.01%
University of Oxford	University of Oxford, 25, 2.9% University of Oxford 25 publications, 2.9%
University College Hospital, Ibadan	University College Hospital, Ibadan, 23, 2.67% University College Hospital, Ibadan 23 publications, 2.67%
Kwame Nkrumah University of Science and Technology	Kwame Nkrumah University of Science and Technology, 23, 2.67% Kwame Nkrumah University of Science and Technology 23 publications, 2.67%
University of Cape Town	University of Cape Town, 22, 2.55% University of Cape Town 22 publications, 2.55%
Karolinska Institute	Karolinska Institute, 21, 2.43% Karolinska Institute 21 publications, 2.43%
University of Technology Sydney	University of Technology Sydney, 20, 2.32% University of Technology Sydney 20 publications, 2.32%
Harvard University	Harvard University, 20, 2.32% Harvard University 20 publications, 2.32%
Imperial College London	Imperial College London, 19, 2.2% Imperial College London 19 publications, 2.2%
Norwegian University of Science and Technology	Norwegian University of Science and Technology, 19, 2.2% Norwegian University of Science and Technology 19 publications, 2.2%
St Olav's University Hospital	St Olav's University Hospital, 18, 2.09% St Olav's University Hospital 18 publications, 2.09%
University of Birmingham	University of Birmingham, 17, 1.97% University of Birmingham 17 publications, 1.97%
University of Ghana	University of Ghana, 17, 1.97% University of Ghana 17 publications, 1.97%
University of Edinburgh	University of Edinburgh, 16, 1.85% University of Edinburgh 16 publications, 1.85%
University of Glasgow	University of Glasgow, 16, 1.85% University of Glasgow 16 publications, 1.85%
University of Washington	University of Washington, 16, 1.85% University of Washington 16 publications, 1.85%
University of Basel	University of Basel, 14, 1.62% University of Basel 14 publications, 1.62%
Swiss Tropical and Public Health Institute	Swiss Tropical and Public Health Institute, 14, 1.62% Swiss Tropical and Public Health Institute 14 publications, 1.62%
University of Lagos	University of Lagos, 14, 1.62% University of Lagos 14 publications, 1.62%
	10 20 30 40 50 60 70

With other countries

	50 100 150 200 250
United Kingdom	United Kingdom, 250, 28.97% United Kingdom 250 publications, 28.97%
USA	USA, 179, 20.74% USA 179 publications, 20.74%
Nigeria	Nigeria, 92, 10.66% Nigeria 92 publications, 10.66%
China	China, 65, 7.53% China 65 publications, 7.53%
Australia	Australia, 62, 7.18% Australia 62 publications, 7.18%
Ghana	Ghana, 57, 6.6% Ghana 57 publications, 6.6%
South Africa	South Africa, 55, 6.37% South Africa 55 publications, 6.37%
Sweden	Sweden, 43, 4.98% Sweden 43 publications, 4.98%
Netherlands	Netherlands, 42, 4.87% Netherlands 42 publications, 4.87%
Uganda	Uganda, 42, 4.87% Uganda 42 publications, 4.87%
Switzerland	Switzerland, 42, 4.87% Switzerland 42 publications, 4.87%
Germany	Germany, 41, 4.75% Germany 41 publications, 4.75%
Kenya	Kenya, 40, 4.63% Kenya 40 publications, 4.63%
France	France, 39, 4.52% France 39 publications, 4.52%
India	India, 31, 3.59% India 31 publications, 3.59%
Norway	Norway, 26, 3.01% Norway 26 publications, 3.01%
Italy	Italy, 25, 2.9% Italy 25 publications, 2.9%
Canada	Canada, 25, 2.9% Canada 25 publications, 2.9%
Spain	Spain, 21, 2.43% Spain 21 publications, 2.43%
Malawi	Malawi, 21, 2.43% Malawi 21 publications, 2.43%
Ethiopia	Ethiopia, 21, 2.43% Ethiopia 21 publications, 2.43%
Tanzania	Tanzania, 20, 2.32% Tanzania 20 publications, 2.32%
Belgium	Belgium, 19, 2.2% Belgium 19 publications, 2.2%
Rwanda	Rwanda, 17, 1.97% Rwanda 17 publications, 1.97%
Brazil	Brazil, 16, 1.85% Brazil 16 publications, 1.85%
Cameroon	Cameroon, 16, 1.85% Cameroon 16 publications, 1.85%
Liberia	Liberia, 16, 1.85% Liberia 16 publications, 1.85%
Mozambique	Mozambique, 16, 1.85% Mozambique 16 publications, 1.85%
Saudi Arabia	Saudi Arabia, 16, 1.85% Saudi Arabia 16 publications, 1.85%
	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.