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The countries with the highest share of articles published in scientific journals according to the Nature Index 2024, which is valid for the calendar year 2023. [2] The "count" is the total number of articles to which nationals of the country have contributed.
Animated, color-coded map showing various continents and regions. Depending on the convention and model, some continents may be consolidated or subdivided: for example, Eurasia is often subdivided into Europe and Asia (red shades), while North and South America are sometimes recognized as one American continent (green shades).
List of countries by number of scientific and technical journal articles; List of countries by number of telephone lines in use; List of countries by number of television broadcast stations; List of countries by smartphone penetration; List of countries by stem cell research trials; List of sovereign states by Internet connection speeds
The border between North America and South America is at some point on the Darién Mountains watershed that divides along the Colombia–Panama border where the isthmus meets the South American continent (see Darién Gap). Virtually all atlases list Panama as a state falling entirely within North America and/or Central America. [116] [117]
Asia (/ ˈ eɪ ʒ ə / ⓘ AY-zhə, UK also / ˈ eɪ ʃ ə / AY-shə) is the largest continent [note 1] [10] [11] in the world by both land area and population. [11] It covers an area of more than 44 million square kilometres, [note 2] about 30% of Earth's total land area and 8% of Earth's total surface area.
The following is a partial list of scientific journals. There are thousands of scientific journals in publication, and many more have been published at various points in the past. The list given here is far from exhaustive, only containing some of the most influential, currently publishing journals in each field.
The Bering Straits divide Asia from North America. On the southeast of Asia are the Malay Peninsula (the limit of mainland Asia) and Indonesia ("Isles of India", the former East Indies), a vast nation among thousands of islands on the Sunda Shelf, large and small, inhabited and uninhabited. Australia nearby is a different continent.
Transcontinental countries in North America or South America (depending on the boundary definition), classified as South American countries by the United Nations Statistics Division: Colombia (Archipelago of San Andrés, Providencia and Santa Catalina) and Venezuela (Nueva Esparta, the Federal Dependencies of Venezuela [including Isla de Aves]).