Science Explorer Back to mapMap
Compare · Countries

Sudan vs Venezuela

On research quality in 2022-now, Sudan ranks #110 in the world and Venezuela #113, of 189 countries. Sudan stands higher in 3 of the 12 fields both publish in, Venezuela in 9.

Research profiles alike: 0.32somewhat alike shapes of research, whatever their size. How it is measured

Compare other countries
vs

Sudan

World rank, 2022-now
#110
#114 all time
Works, 2022-now
7.7k
fractional
Top-10% rate
7.1%
share of its work among the world's most cited
Open access
65%
of its works free to read

Strongest relative focus: Microbiology, Forestry, Applied Microbiology and Biotechnology.

Venezuela

World rank, 2022-now
#113
#147 all time
Works, 2022-now
9.3k
fractional
Top-10% rate
5.7%
share of its work among the world's most cited
Open access
40%
of its works free to read

Strongest relative focus: General Social Sciences, General Arts and Humanities, Life-span and Life-course Studies.

Who leads, measure by measure?

Sudan leads on 7 of 9 measures: research quality, excellence for its fields, top-10% rate, citations per work, open access, international co-authorship and growth. Venezuela leads on 1 of 9 measures: output. The two are level on institutions in the world top 100.

Sudan 71 level1 Venezuela
  1. #110Research qualityworld rank of 189 countries, 2022-now#113
  2. 0.69×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.64×
  3. 7.7kOutputfractional works, 2022-now9.3k
  4. 7.1%Top-10% rateshare of its works among the world's most cited5.7%
  5. 9.3Citations per workall time, per fractional work7.6
  6. 0World top 100institutions it holds among the world's best 1000
  7. 65%Open accessof its works free to read, all time40%
  8. 40%Internationalof its works written with co-authors abroad, all time19%
  9. +22%Growthworks in 2022-25 against 2018-21; half a bar is no change-2%

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.

Who leads in each field?

Sudan stands higher in 3 of 12 fields, Venezuela in 9. Venezuela leads most in Social Sciences (#97 against #127); Sudan leads most in Engineering (#89 against #123). Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Sudan 39 Venezuela
  1. #106Agricultural and Biological Sciences#104
  2. -Arts and Humanities#79
  3. #76Biochemistry, Genetics and Molecular Biology#91
  4. -Business, Management and Accounting#85
  5. #99Computer Science#111
  6. -Economics, Econometrics and Finance#96
  7. #89Engineering#123
  8. #104Environmental Science#81
  9. #79Health Professions#75
  10. #116Medicine#114
  11. -Psychology#91
  12. #127Social Sciences#97

Standing is the percentile of world rank within each field, 2022-now; the printed number is the rank itself. A dash means the field is too small there to rank. How sides are compared.

The numbers behind each field

Click a heading to sort. The side that does better in a pair of columns is shaded: a lower rank, a higher rate, more works.

Field Sudan rankVenezuela rank Sudan top 10%Venezuela top 10% Sudan worksVenezuela works
Agricultural and Biological Sciences #106 #104 5.4% 5.2% 782 700
Arts and Humanities - #79 - 7.3% - 475
Biochemistry, Genetics and Molecular Biology #76 #91 7.5% 3.2% 374 247
Business, Management and Accounting - #85 - 7.8% - 373
Computer Science #99 #111 7.8% 5.3% 446 541
Economics, Econometrics and Finance - #96 - 9.3% - 309
Engineering #89 #123 9.2% 2.9% 686 434
Environmental Science #104 #81 6.3% 4.8% 315 480
Health Professions #79 #75 10.5% 4.8% 274 458
Medicine #116 #114 5.4% 3.2% 2.2k 1.6k
Psychology - #91 - 7.2% - 305
Social Sciences #127 #97 8.0% 8.1% 1k 2.6k

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.

Sudan

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Epidemiology709▲ 2.0×135 topics
  2. Inflammation266▲ 1.42×83 topics
  3. Machine Learning258◆ 0.88×87 topics
  4. Climate Change240◆ 1.01×103 topics
  5. Public Health220▲ 1.72×58 topics
  6. Curriculum Development203▲ 3.4×17 topics
  7. Globalization201▲ 1.16×83 topics
  8. Treatment197▲ 1.85×51 topics
  9. Digital Learning195▲ 4.3×12 topics
  10. Diagnosis193▲ 2.4×41 topics
  11. Oxidative Stress178▲ 1.23×62 topics
  12. COVID-19176▲ 1.54×31 topics
  13. Antioxidant165▲ 2.7×51 topics
  14. Character Education164▲ 3.9×6 topics
  15. Educational Technology161▲ 1.55×37 topics
  16. Cardiovascular Disease158▲ 1.58×39 topics
  17. Immune Response152▲ 3.0×23 topics
  18. E-Learning150▲ 1.77×24 topics
  19. Online Learning149▲ 2.0×23 topics
  20. Pandemic148▲ 1.69×14 topics
  21. STEM Education146▲ 3.7×15 topics
  22. Local Wisdom143▲ 3.5×9 topics
  23. Mobile Learning143▲ 4.8×6 topics
  24. Diabetes142▲ 3.2×22 topics
  25. Genetic Diversity132▲ 3.5×21 topics
  26. Pathogenesis128▲ 2.9×24 topics
  27. Islamic Education126▲ 4.3×4 topics
  28. Vaccine125▲ 3.6×11 topics
  29. Antioxidant Activity124▲ 2.3×31 topics
  30. Global Burden115▲ 2.4×12 topics
  31. Media Literacy113▲ 2.4×5 topics
  32. Vaccine Development99▲ 4.4×11 topics
  33. Sustainable Agriculture95▲ 3.5×13 topics
  34. Drug Resistance95▲ 3.8×9 topics
  35. 21st Century Skills89▲ 3.5×6 topics
  36. Critical Thinking Skills82▲ 5.4×2 topics
  37. Teacher Performance76▲ 6.2×2 topics
  38. Conflict75▲ 5.3×8 topics
  39. Character Development74▲ 5.2×2 topics
  40. Climate Resilience62▲ 12×3 topics

Venezuela

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Education1,222▲ 6.5×107 topics
  2. Globalization708▲ 3.3×127 topics
  3. Sustainability672▲ 2.5×104 topics
  4. Epidemiology661▲ 1.51×136 topics
  5. Innovation634▲ 5.6×63 topics
  6. Public Health556▲ 3.5×67 topics
  7. Latin America406▲ 19×23 topics
  8. Sustainable Development398▲ 2.3×76 topics
  9. Teacher Training396▲ 5.9×23 topics
  10. Competitiveness395▲ 45×6 topics
  11. Knowledge Management386▲ 6.3×29 topics
  12. Pedagogy366▲ 6.6×23 topics
  13. Health Promotion362▲ 10×17 topics
  14. Human Rights357▲ 3.2×62 topics
  15. Educational Technology348▲ 2.7×40 topics
  16. Digital Marketing342▲ 8.0×5 topics
  17. E-Learning340▲ 3.2×20 topics
  18. Small and Medium Enterprises327▲ 17×8 topics
  19. Social Responsibility323▲ 13×11 topics
  20. Communication318▲ 9.2×22 topics
  21. Public Policy299▲ 5.7×27 topics
  22. Innovation Ecosystems292▲ 26×4 topics
  23. Distance Learning288▲ 7.5×12 topics
  24. Organizational Culture281▲ 6.6×15 topics
  25. Nutrition275▲ 5.7×17 topics
  26. Urban Development268▲ 6.9×14 topics
  27. Rural Development261▲ 6.9×18 topics
  28. Economic Impact260▲ 4.4×11 topics
  29. Inclusive Education260▲ 6.5×18 topics
  30. Technology254▲ 4.4×31 topics
  31. Social Movements251▲ 7.7×26 topics
  32. Ethics250▲ 4.5×46 topics
  33. Globalization Effects243▲ 32×3 topics
  34. Social Impact239▲ 5.5×19 topics
  35. Psychopharmacology Education239▲ 35×1 topic
  36. Tourism Management239▲ 31×1 topic
  37. University Students198▲ 32×2 topics
  38. Social Sciences198▲ 12×18 topics
  39. Teacher Development192▲ 28×3 topics
  40. Student Performance189▲ 16×5 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?

Venezuela has out-published Sudan every year since 1980.

still counting2k4kVenezuela2,383 in 2025Sudan2,084 in 20251990200020102020

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.

still counting0.050%0.10%0.15%Venezuela0.041% in 2025Sudan0.035% in 202519801990200020102020

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%).

still counting5%10%15%Sudan8.8% in 2025Venezuela6.5% in 2025200020102020

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.

Sudan 05 level0 Venezuela
  1. 0In the world top 500
  2. 0In the top 1000
  3. 0In the top 5000
  4. 0In the top 1,0000
  5. #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, Sudan or Venezuela?

Venezuela publishes 1.2× as much research as Sudan in 2022-now (9.3k against 7.7k fractional works).

Whose research has more impact, Sudan or Venezuela?

7.1% of Sudan's research reaches the world's top 10% most cited, against 5.7% for Venezuela.

Is Sudan or Venezuela growing faster?

Output in 2022-25 was +22% against 2018-21 for Sudan, and -2% for Venezuela.

Which has more open access research, Sudan or Venezuela?

65% of Sudan's research is free to read, against 40% of Venezuela's.

Which has more world-class institutions, Sudan or Venezuela?

Sudan holds 0 of the world's top 100 research institutions and Venezuela 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%.

Sudan

  1. 1National University16.3% top 10% · 260 works
  2. 2University of Khartoum7.8% top 10% · 1.3k works
  3. 3Sudan Meteorological Authority7.3% top 10% · 720 works
  4. 4University of Gezira7.4% top 10% · 539 works
  5. 5Sudan University of Science and Technology6.8% top 10% · 573 works
  6. 6Al-Neelain University5.9% top 10% · 362 works

Venezuela

  1. 1Universidad Católica Andrés Bello7.8% top 10% · 753 works
  2. 2Universidad del Zulia8.8% top 10% · 1k works
  3. 3Central University of Venezuela4.8% top 10% · 1.1k works
  4. 4University of the Andes4.4% top 10% · 743 works
  5. 5Libertador Experimental Pedagogical University6.8% top 10% · 455 works
  6. 6University of Carabobo5.6% top 10% · 520 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.

Sudan

  1. 1 Ayman Ahmed #17,030 worldwide 35k citations · 288 works
  2. 2 Nouh Saad Mohamed #38,344 worldwide 35k citations · 192 works
  3. 3 Emmanuel Edwar Siddig #68,313 worldwide 30k citations · 300 works
  4. 4 Ahmed ElSayed #171,188 worldwide 5.3k citations · 55 works
  5. 5 Hytham K. S. Hamid #277,816 worldwide 2.5k citations · 139 works

Venezuela

  1. 1 Hirma Ramírez‐Angulo #17,114 worldwide 10k citations · 79 works
  2. 2 Armando Torres‐Lezama #42,816 worldwide 8.1k citations · 63 works
  3. 3 Emilio Vilanova #73,775 worldwide 6.5k citations · 85 works
  4. 4 Gerardo A. Aymard C. #92,032 worldwide 8.7k citations · 113 works
  5. 5 Jaime Evans #110,770 worldwide 7.3k citations · 40 works