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Regional rail is usually defined as providing services that link settlements to each other, unlike commuter rail [citation needed] which links locations within a singular urban area. Unlike inter-city services, regional trains stop at more stations and serve smaller communities. They may share routes with inter-city services, providing service ...
In medicine and statistics, sensitivity and specificity mathematically describe the accuracy of a test that reports the presence or absence of a medical condition. If individuals who have the condition are considered "positive" and those who do not are considered "negative", then sensitivity is a measure of how well a test can identify true ...
Anning, depicted with her dog. Mary Anning (21 May 1799 – 9 March 1847) was an English fossil collector and palaeontologist. She made discoveries of Jurassic marine fossil beds in the cliffs along the English Channel at Lyme Regis, which changed the scientific thinking about prehistoric life and the history of the Earth.
2024 list by the United Nations Population Fund Rank Country Total Fertility rate in 2023 (births/woman) 1 Niger 6.6 2 Chad 6.0 3 DR Congo 6.0 4 Somalia 6.0 5 Central African Republic 5.7 6 Mali 5.7 7 Angola 5.0 8 Nigeria 5.0 9 Burundi 4.8 10 Benin 4.7 11 Burkina Faso
Taiwan,[II][k] officially the Republic of China (ROC),[I][l] is a country[27] in East Asia.[o] It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ...
The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
Duke University is a private research university in Durham, North Carolina, United States.Founded by Methodists and Quakers in the present-day city of Trinity in 1838, the school moved to Durham in 1892. In 1924, tobacco and electric power industrialist James Buchanan Duke established The Duke Endowment and the institution changed its name to honor his deceased father, Washington Duke.
