Chad
- World rank, 2022-now
- #168
- #171 all time
- Works, 2022-now
- 545
- fractional
- Top-10% rate
- 4.2%
- share of its work among the world's most cited
- Open access
- 79%
- of its works free to read
Strongest relative focus: Forestry, Ecology, Evolution, Behavior and Systematics, Geochemistry and Petrology.
Guyana
- World rank, 2022-now
- #170
- #200 all time
- Works, 2022-now
- 866
- fractional
- Top-10% rate
- 4.0%
- share of its work among the world's most cited
- Open access
- 69%
- of its works free to read
Strongest relative focus: Drug Discovery, Medical Laboratory Technology, Filtration and Separation.
Who leads, measure by measure?
Chad leads on 4 of 9 measures: research quality, excellence for its fields, open access and international co-authorship. Guyana leads on 1 of 9 measures: output. The two are level on top-10% rate, citations per work, institutions in the world top 100 and growth.
- #168Research qualityworld rank of 189 countries, 2022-now#170
- 0.75×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.57×
- 545Outputfractional works, 2022-now866
- 4.2%Top-10% rateshare of its works among the world's most cited4.0%
- 4.6Citations per workall time, per fractional work4.7
- 0World top 100institutions it holds among the world's best 1000
- 79%Open accessof its works free to read, all time69%
- 47%Internationalof its works written with co-authors abroad, all time26%
- +104%Growthworks in 2022-25 against 2018-21; half a bar is no change+104%
A rank is drawn as its standing: the longer the bar, the nearer the top. Anything else is drawn against the larger of the two, and two values a hair apart are called level. Quality, excellence and the top-10% rate are explained in the methodology.
What is each known for?
The keywords that describe each side's research, by fractional works in 2022-now and weighted toward what it does more of than the world.
Chad
- Liver Disease
- Community Health Workers
- Antiviral Therapy
- Water Sanitation Hygiene
- Maternal Mortality
- Vaccine
- Indigenous Fruits
- Agroforestry
- Biodiversity Conservation
- Diabetes
- Nutritional Value
- Remote Sensing
- Genetic Diversity
- Public Health
- Renewable Energy
- Multifunctionality
- Agroecology
- Diversity
- Smallholder Farmers
- Climate Change
- Epidemiology
- Sustainability
- Adaptation
- Livestock Farming
- Agricultural Development
- Work Organization
- Immune Response
- Treatment
- Sustainable Agriculture
- Antioxidant
- Climate Resilience
- Global Burden
- Governance
- Health Benefits
- Tree Domestication
- Global Burden of Disease
- Maternal and Child Undernutrition
- GIS
- Antiretroviral Therapy
- Institutional Quality
All 40 words, with their numbers
- Epidemiology62▲ 2.3×83 topics
- Climate Change50▲ 2.8×47 topics
- Sustainability43▲ 2.6×36 topics
- Smallholder Farmers39▲ 28×6 topics
- Adaptation31▲ 16×5 topics
- Diversity26▲ 22×4 topics
- Livestock Farming26▲ 65×2 topics
- Agroecology26▲ 27×2 topics
- Agricultural Development25▲ 25×2 topics
- Multifunctionality25▲ 81×1 topic
- Work Organization25▲ 97×1 topic
- Renewable Energy20▲ 2.0×22 topics
- Immune Response19▲ 5.0×13 topics
- Public Health19▲ 1.92×34 topics
- Treatment19▲ 2.3×27 topics
- Genetic Diversity19▲ 6.4×15 topics
- Sustainable Agriculture18▲ 8.5×9 topics
- Remote Sensing17▲ 2.1×15 topics
- Antioxidant16▲ 3.5×26 topics
- Nutritional Value15▲ 20×2 topics
- Climate Resilience15▲ 38×3 topics
- Diabetes15▲ 4.4×11 topics
- Global Burden15▲ 4.1×12 topics
- Biodiversity Conservation14▲ 5.4×8 topics
- Governance13▲ 5.9×7 topics
- Agroforestry12▲ 27×4 topics
- Health Benefits12▲ 5.3×10 topics
- Indigenous Fruits12▲ 77×1 topic
- Tree Domestication12▲ 77×1 topic
- Vaccine12▲ 4.3×9 topics
- Global Burden of Disease10▲ 6.3×2 topics
- Maternal Mortality10▲ 6.9×5 topics
- Maternal and Child Undernutrition10▲ 19×1 topic
- Water Sanitation Hygiene10▲ 19×1 topic
- GIS10▲ 19×3 topics
- Antiviral Therapy9▲ 14×3 topics
- Antiretroviral Therapy9▲ 7.9×6 topics
- Community Health Workers9▲ 14×2 topics
- Institutional Quality9▲ 12×2 topics
- Liver Disease8▲ 14×2 topics
Guyana
- Socio-economic Factors
- Student Competencies
- Community Health Workers
- Educational Technologies
- Digital Education
- Language Teaching
- Teaching Methods
- Race
- Risk Perception
- Culture
- Vaccine
- Postcolonialism
- Social Capital
- Pedagogy
- Antioxidant
- Mental Health
- Economic Development
- Environmental Impact
- Sustainability
- Epidemiology
- Globalization
- Climate Change
- COVID-19
- Oxidative Stress
- Public Health
- Pandemic
- Economic Growth
- Antioxidant Activity
- Identity
- Maternal Mortality
- Caribbean
- Nationalism
- Politics
- Tourism Development
- Dancehall
- Critical Thinking
- Formative Assessment
- Poverty Reduction
- Artistic Education
- Health Inequalities
All 40 words, with their numbers
- Globalization58▲ 2.9×51 topics
- Epidemiology57▲ 1.42×79 topics
- Climate Change46▲ 1.67×59 topics
- Sustainability41▲ 1.68×48 topics
- COVID-1937▲ 2.8×23 topics
- Environmental Impact33▲ 1.94×36 topics
- Oxidative Stress32▲ 1.91×36 topics
- Economic Development32▲ 3.9×19 topics
- Public Health30▲ 2.0×41 topics
- Mental Health27▲ 1.88×21 topics
- Pandemic26▲ 2.6×12 topics
- Antioxidant24▲ 3.5×30 topics
- Economic Growth23▲ 2.8×17 topics
- Pedagogy23▲ 4.5×12 topics
- Antioxidant Activity22▲ 3.5×20 topics
- Social Capital22▲ 4.2×16 topics
- Identity22▲ 2.9×14 topics
- Postcolonialism21▲ 14×4 topics
- Maternal Mortality20▲ 9.1×5 topics
- Vaccine20▲ 5.0×10 topics
- Caribbean19▲ 103×2 topics
- Culture19▲ 3.6×6 topics
- Nationalism18▲ 4.0×7 topics
- Risk Perception18▲ 6.5×6 topics
- Politics17▲ 6.5×4 topics
- Race17▲ 14×6 topics
- Tourism Development16▲ 12×2 topics
- Teaching Methods16▲ 9.7×3 topics
- Dancehall16▲ 211×1 topic
- Language Teaching15▲ 5.6×4 topics
- Critical Thinking15▲ 13×3 topics
- Digital Education14▲ 9.6×3 topics
- Formative Assessment14▲ 17×2 topics
- Educational Technologies14▲ 15×2 topics
- Poverty Reduction14▲ 11×5 topics
- Community Health Workers14▲ 16×2 topics
- Artistic Education14▲ 21×1 topic
- Student Competencies14▲ 21×1 topic
- Health Inequalities14▲ 11×3 topics
- Socio-economic Factors13▲ 11×2 topics
Size is fractional works in the topics tagged with each word; colour is the word's share of the side's work against its share of the world's. Each word links to the topic it comes from most.
How has their output grown?
Guyana has out-published Chad every year since 2018, when it overtook it.
Fractional works per year.
Their share of all research
Growing output can still be a shrinking share, because all of science grows. Each line is a side as a percentage of every work published that year.
Fractional works over all fractional works that year. How the balance of science has shifted.
How much of it reaches the world top 10%
The share of each side's works, year by year, that reached the world's 10% most cited for their field and year. The average of all institutions is 10.0% (why not 10%).
A year with under 1% of the side's peak output is left out: a rate over a handful of papers says nothing. The latest years are still being cited.
Who holds more of the world's best institutions?
A country's average quality and the number of institutions it holds at the very top can disagree, and both are worth knowing. The counts are nested: an institution in the top 50 is also in the top 100.
- 0In the world top 500
- 0In the top 1000
- 0In the top 5000
- 0In the top 1,0000
- #51Elite capacityrank among 204 countries#51
Institutions ranked on research quality, 2022-now. Elite capacity counts a country's institutions by their worldwide rank, weighted so a place at #1 counts for more than one at #480.
Which publishes more research, Chad or Guyana?
Guyana publishes 1.6× as much research as Chad in 2022-now (866 against 545 fractional works).
Whose research has more impact, Chad or Guyana?
4.2% of Chad's research reaches the world's top 10% most cited, against 4.0% for Guyana.
Is Chad or Guyana growing faster?
Output in 2022-25 was +104% against 2018-21 for Guyana, and +104% for Chad.
Which has more open access research, Chad or Guyana?
79% of Chad's research is free to read, against 69% of Guyana's.
Which has more world-class institutions, Chad or Guyana?
Chad holds 0 of the world's top 100 research institutions and Guyana 0; in the top 1,000 it is 0 against 0.
Which institutions lead in each country?
The highest-ranked institutions on each side on research quality, 2022-now. The percentage is each institution's own top-10% rate: the share of its works that are among the world's 10% most cited for their field and year. Every figure stands alone, so they do not add up to 100%.
Chad
- 1University of N'Djamena3.4% top 10% · 365 works
Guyana
- 1University of Guyana4.7% top 10% · 440 works
- 2Texila American University2.8% top 10% · 397 works
The number is the rank inside the country. The track on each row is the top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below. The ranking is the quality score, which compares the rate with what each institution's own topics predict and adds a small reward for size, so the rates do not fall in order.
Who are the top researchers on each side?
The most cited researchers on each side, among those ranked.
Chad
- 1 Andossa Likius #853,994 worldwide 4.6k citations · 80 works
- 2 Jean‐Claude Mousseuknadji Kouladoum #1,017,261 worldwide 387 citations · 27 works
- 3 Hassane Taïsso Mackaye #1,057,251 worldwide 3.5k citations · 61 works
- 4 Yodé Miangotar #1,646,455 worldwide 1.9k citations · 18 works
- 5 Hassan Taïsso Mackaye #1,834,244 worldwide 1.1k citations · 22 works
Guyana
- 1 Raquel Thomas #19,194 worldwide 4.9k citations · 57 works
- 2 Horace Cox #292,141 worldwide 907 citations · 49 works
- 3 Raquel Thomas‐Caesar #650,754 worldwide 2.8k citations · 17 works
- 4 Lenandlar Singh #841,463 worldwide 945 citations · 31 works
- 5 Paulette Bynoe #1,923,342 worldwide 489 citations · 42 works