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Costa's minimal surface, cropped by a sphere STL model of the surface. In mathematics, Costa's minimal surface, is an embedded minimal surface discovered in 1982 by the Brazilian mathematician Celso José da Costa. It is also a surface of finite topology, which means that it can be formed by puncturing a compact surface.
Tinbergen's four questions, named after 20th century biologist Nikolaas Tinbergen, are complementary categories of explanations for animal behaviour. These are also commonly referred to as levels of analysis. [1] It suggests that an integrative understanding of behaviour must include ultimate (evolutionary) explanations, in particular:
Two main population-level indices have been important in this area of research: rank-order consistency and mean-level consistency. Rank-order consistency indicates the relative placement of individuals within a group. [134] Mean-level consistency indicates whether groups increase or decrease on certain traits throughout the lifetime. [133]
In the past two million years, Costa Rican volcanoes have erupted andesite, rhyolite and dacite with geochemical patterns that suggest the magma may have come from the melting of metamorphosed basalt. [5] Marine geologists have found mound-like structure offshore due to subduction related fluid venting. A lack of chlorine suggests a freshwater ...
Archaeology of the Diquís Delta, Costa Rica. Cambridge: Papers of the Peabody Museum of Archaeology and Ethnology 51. ISBN 0-00-000000-0. Stone, Doris (1943). "Preliminary investigation of the flood plain of the Río Grande de Térraba, Costa Rica". American Antiquity. 9 (1): 74– 88. doi:10.2307/275453. JSTOR 275453. S2CID 163632144.
Image source: The Motley Fool. Roblox (NYSE: RBLX) Q4 2024 Earnings Call Feb 06, 2025, 8:30 a.m. ET. Contents: Prepared Remarks. Questions and Answers. Call ...
Costa, a Democratic congressman since 2005, and Maher answered The Bee’s questions on the economy and the border. Jim Costa vs. Michael Maher for California Congress race: Candidates answer key ...
The original image of Barbra Streisand's cliff-top residence in Malibu, California, which she attempted to suppress in 2003. The Streisand effect is an unintended consequence of attempts to hide, remove, or censor information, where the effort instead increases public awareness of the information.