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91Die Walküre — Richard Wagner …
92Obsessive-compulsive disorder — (OCD) is a chronic anxiety disorder most commonly characterized by obsessive, distressing, intrusive thoughts and related compulsions. Compulsions are tasks or rituals which attempt to neutralize the obsessions. OCD is distinguished from other… …
93Deimos (moon) — Deimos An enhanced color image of Deimos taken by the Mars Reconnaissance Orbiter. Discovery Discovered by Asaph Hall …
9424 (TV series) — 24 …
95Thunder — For other uses, see Thunder (disambiguation). Thunder is the sound made by lightning. Depending on the nature of the lightning and distance of the listener, thunder can range from a sharp, loud crack to a long, low rumble (brontide). The sudden… …
96Algorithmic efficiency — In computer science, efficiency is used to describe properties of an algorithm relating to how much of various types of resources it consumes. Algorithmic efficiency can be thought of as analogous to engineering productivity for a repeating or… …
97Human papillomavirus — Taxobox image size = 190px image caption =EM of papillomavirus virus group = i ordo = Unranked familia = Papillomaviridae subdivision ranks = Genera subdivision = Alphapapillomavirus Betapapillomavirus Gammapapillomavirus Mupapillomavirus… …
98Classical conditioning — This dog was fitted with a cannula to measure the amount of salivation when presented with a certain stimulus, Pavlov Museum, 2005 Classical conditioning (also Pavlovian or respondent conditioning, Pavlovian reinforcement) is a form of… …
99Alaska purchase — The Alaska Purchase (otherwise known as Seward s Folly or Seward s Icebox) by the United States from the Russian Empire occurred in 1867 at the behest of Secretary of State William Seward. The territory purchased was 586,412 square miles… …
100German East Africa — Protectorate of German East Africa Schutzgebiet Deutsch Ostafrika German colony ← …
