scale of reduction
21Meerwein–Ponndorf–Verley reduction — The Meerwein Ponndorf Verley (MPV) Reduction in organic chemistry is the reduction of ketones and aldehydes to their corresponding alcohols utilizing aluminumalkoxide catalysis in the presence of a sacrificial alcohol[1]. The beauty in the MPV… …
22Class-size reduction — As an education reform, the broad goal of class size reduction (CSR) is to increase the number of individualized student teacher interactions intended to improve student learning. A reform long holding theoretical attraction to many… …
23O scale — Australian O gauge model railway O scale (or O gauge) is a scale commonly used for toy trains and model railroading. Originally introduced by German toy manufacturer Märklin around 1900, by the 1930s three rail alternating current O gauge was the …
24N scale — This article is about the model railway track size. For the handheld video game system/mobile telephone, see N Gage. U.S. Prototype model of an N scale (1:160) Chesapeake and Ohio Railway 2 6 6 2 Mallèt shown with a pencil for size N scale is a… …
25Disaster risk reduction — (DRR) is a systematic approach to identifying, assessing and reducing the risks of disaster. It aims to reduce socio economic vulnerabilities to disaster as well as dealing with the environmental and other hazards that trigger them: here it has… …
26Dimension reduction — For dimensional reduction in physics, see Dimensional reduction. In machine learning, dimension reduction is the process of reducing the number of random variables under consideration, and can be divided into feature selection and feature… …
27Clitoral hood reduction — Clitoral hood reduction: the pre operative aspects of clitoral prepuce and labia minora hypertrophy (left), and the post operative aspects of the reduced prepuce and labia minora. (right) Clitoral hood reduction is an elective plastic surgery… …
28economy of scale — ▪ economics in economics, the relationship between the size of a plant or industry and the lowest possible cost of a product. When a factory increases output, a reduction in the average cost of a product is usually obtained. This reduction… …
29International Nuclear Event Scale — The International Nuclear and Radiological Event Scale (INES) was introduced in 1990[1] by the International Atomic Energy Agency (IAEA) in order to enable prompt communication of safety significance information in case of nuclear accidents. The… …
30Lithic reduction — The Levallois technique of flint knapping Lithic reduction involves the use of a hard hammer precursor, such as a hammerstone, a soft hammer fabricator (made of wood, bone or antler), or a wood or antler punch to detach lithic flakes from a lump… …
