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Non-imaging optics — is the branch of optics concerned with the optimal transfer of light radiation between a source and a target. Unlike traditional imaging optics, the techniques involved do not attempt to form an image of the source; instead an optimized optical… … Wikipedia
Non-fiction — (or nonfiction) is the form of any narrative, account, or other communicative work whose assertions and descriptions are understood to be fact. This presentation may be accurate or not that is, it can give either a true or a false account of the… … Wikipedia
Non-tropic hormone — Non tropic hormones are hormones that directly stimulate target cells to induce effects. This differs from the tropic hormones, which act on another endocrine gland. Most endocrine glands, such as the gonads, pancreas, and adrenal glands, produce … Wikipedia
Textbook — For other uses, see Textbook (disambiguation). Textbook A textbook or coursebook is a manual of instruction in any branch of study. Textbooks are produced according to the demands of educational institutions. Although most textbooks are only… … Wikipedia
Non-convexity (economics) — In economics, non convexity refers to violations of the convexity assumptions of elementary economics. Basic economics textbooks concentrate on consumers with convex preferences (that do not prefer extremes to in between values) and convex budget … Wikipedia
Non-critical string theory — The non critical string theory describes the relativistic string without enforcing the critical dimension. Although this allows the construction of a string theory in 4 spacetime dimensions, such a theory usually does not describe a Lorentz… … Wikipedia
Non-rapid eye movement sleep — slow eyes redirects here. For sloe eyes, see Prunus spinosa. Non rapid eye movement, or NREM is, collectively, sleep stages 1 – 3, previously known as stages 1 – 4. Rapid eye movement sleep (REM) is not included. There are distinct… … Wikipedia
Open textbook — An open textbook is an openly licensed textbook offered online by its author(s) or through a non profit or commercial open licensed publisher. The open license sets open textbooks apart from traditional textbooks by allowing users to read online … Wikipedia
Palestinian textbook controversy — Palestinian textbooks have been accused of instilling anti Semitic attitudes or inciting Palestinian children to commit violence or terrorism. As a result of these accusations, analyses of Palestinian textbooks have been performed by various… … Wikipedia
California textbook controversy over Hindu history — A controversy in the US state of California concerning the portrayal of Hinduism in history textbooks began in 2005. Christian, Jewish, Muslim and Hindu groups complained that their religions were in part incorrectly or negatively portrayed.The… … Wikipedia
Kanawha County textbook controversy — The Kanawha County textbook controversy was a somewhat violent school control struggle in the 20th century United States. It led to the largest protests ever in the history of the county, the shooting of one bystander, and extended school… … Wikipedia