Yemen's Top 2% Scientists 2021: Career-Long List
Yemen has 1 scientists on the 2021 career-long Top 2% list, the same number as in 2020. That places Yemen 135th in the world by number of listed scientists, down 7 places. Sana'a University has the most listed scientists (1).
Scientists in Yemen on the list, by year
The career-long count is unchanged since 2020.
Show the numbers
| Year | Single Year | Change | Career Data | Change |
|---|---|---|---|---|
| 2020 | 4 | 1 | ||
| 2021 | 8 | +100.0% | 1 | +0.0% |
| 2022 | 7 | -12.5% | 1 | +0.0% |
| 2023 | 7 | +0.0% | 3 | +200.0% |
| 2024 | 12 | +71.4% | 3 | +0.0% |
| 2025 | 23 | +91.7% | 4 | +33.3% |
Institutes in Yemen
By number of listed scientists
Show the list
All 1 scientists
| Rank in Yemen | World rank | Scientist | Institute | Sub-field | Rank in sub-field |
|---|---|---|---|---|---|
| 1 | 195,905 | Sana'a University | Medicinal & Biomolecular Chemistry | Rank 813 | |
| No scientists match this filter. | |||||
Countries with a similar count
Mongoliain 2021
Saint Helena, Ascension and Tristan da Cunhain 2021
Senegalin 2021
Syriain 2021
Tajikistanin 2021
Timor-Lestein 2021
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Frequently asked questions
How many scientists from Yemen are in the 2021 Stanford Top 2% list?
8 scientists affiliated with Yemen are on the 2021 single-year list, and 1 are on the career-long list.
Which institute in Yemen has the most Top 2% scientists?
On the 2021 career-long list, Sana'a University has the most listed scientists from Yemen, with 1.
How has the number of Top 2% scientists in Yemen changed since 2020?
On the career-long list, Yemen went from 1 scientists in 2020 to 1 in 2021, a change of +0.0%.
What is the difference between the single-year and career-long lists?
The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.
What is the official source of this data?
The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.