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Notation for the (principal) square root of x. For example, √ 25 = 5, since 25 = 5 ⋅ 5, or 5 2 (5 squared). In mathematics, a square root of a number x is a number y such that =; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1]
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...
Charles Robert Darwin (/ ˈ d ɑːr w ɪ n / [5] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [6] widely known for his contributions to evolutionary biology.
Another common example is the class of Bcr-Abl inhibitors, which are used to treat chronic myelogenous leukemia (CML). [4] Currently, targeted therapies exist for many of the most common cancer types, including bladder cancer , breast cancer, colorectal cancer , kidney cancer , leukemia , liver cancer , lung cancer, lymphoma , pancreatic cancer ...
According to the art historian, Jonathan Fineberg, the ecosocial movement that transformed Williamsburg, Brooklyn in the 1990s was devoted to "a richer, more dynamically interacting whole," [2] and explored new forms of interconnected art and culture in the streets, rooftops, abandoned warehouses and local media networks. [1]
Burning Man is a week-long large-scale desert event focused on "community, art, self-expression, and self-reliance" held annually in the western United States. [1] [2] The event's name comes from its culminating ceremony: the symbolic burning of a large wooden effigy, referred to as the Man, that occurs on the penultimate night, the Saturday evening before Labor Day. [3]
Wilhelm Reich (1897–1957): Austrian psychiatrist and psychoanalyst, known as one of the most radical figures in the history of psychiatry. [ 287 ] Charles Francis Richter (1900–1985): American seismologist and physicist who is most famous as the creator of the Richter magnitude scale , which, until the development of the moment magnitude ...