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Myopia, also known as near-sightedness and short-sightedness, is an eye disease where distant objects appear blurry. It results from the length of the eyeball growing too long or the lens being too strong. Learn about the risk factors, diagnosis, prevention, and correction methods of myopia.
A pastor who the United States says was wrongfully detained in a Chinese prison for nearly two decades has been released, according to the State Department, ending a case that the Biden ...
Learn about the origins, development and evolution of the SLR camera, from its invention in 1861 to its current challenges from mirrorless cameras. Explore the milestones, innovations and brands of the SLR camera industry.
Ooms, Marius (2009). "Trends in Applied Econometrics Software Development 1985–2008: An Analysis of Journal of Applied Econometrics Research Articles, Software Reviews, Data and Code". Palgrave Handbook of Econometrics. Vol. 2: Applied Econometrics. Palgrave Macmillan. pp. 1321–1348. ISBN 978-1-4039-1800-0. Renfro, Charles G. (2004).
Design effect is a measure of how well a sample represents a larger group for a specific parameter. It is the ratio of the variance of an estimator based on a complex sampling design to the variance of an estimator based on simple random sampling.
Isaac Newton was a mathematician, physicist, astronomer, alchemist, theologian, and author who formulated the laws of motion and universal gravitation. He published his findings in the Principia, which explained the Solar System's heliocentricity and the motion of objects on Earth and celestial bodies.
Alan Turing was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. He is widely considered to be the father of theoretical computer science for his work on the Turing machine, algorithm and computation.
Nicolaus Copernicus was a Renaissance polymath who formulated a heliocentric model of the universe in his book De revolutionibus orbium coelestium. He was born in ToruĊ, Royal Prussia, in 1473 and died in Frombork, Royal Prussia, in 1543.