All articles starting with N
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Nomenclatural history of Thermoplasmata
Thermoplasmata is a class of archaea named by Reysenbach in 2002, anchored on the acidophilic genus Thermoplasma; databases still disagree on its phylum and on how broadly the class is drawn.
Nomenclature
Nomenclature: a system or reasoned set of names for the objects of a science, art, or discipline, from Latin nomenclatura. Covers binomial biological naming, IUPAC chemical rules, and medical-device and museum classification codes.
Nomenclature and taxonomic authorities in spider systematics
Nomenclature and taxonomic authorities in spider systematics: ICZN rules (Articles 22, 23, 50, 51) governing spider name authorship, priority, and citation, from Clerck 1757 to the World Spider Catalog version 27 with 54,150 species.
Nomenclature of lunar far-side craters
The nomenclature of lunar far-side craters is the IAU-approved naming of far-side features, begun after Luna 3's first photographs in 1959 and settled with 513 names in 1970.
Nomenclature of Organic Chemistry
Nomenclature of Organic Chemistry, commonly called the IUPAC Blue Book, is the official IUPAC rulebook for naming organic chemical compounds; its 2013 recommendations introduced preferred IUPAC names.
Nomenclature of Pleuroceridae
The Nomenclature of Pleuroceridae is the body of names governing pleurocerid snails, North American freshwater gastropods, with about 850 to 1000 names for only 166 valid species.
Nomenclature of Territorial Units for Statistics
NUTS (Nomenclature of Territorial Units for Statistics, Nomenclature des unités territoriales statistiques) is Eurostat's three-level EU regional classification (NUTS 1-3), legally based on Regulation 1059/2003, with population thresholds and 3-year stability, used for regional statistics and cohesion policy.
Nomenklatura (номенклатура)
Nomenklatura (номенклатура): the CPSU's list-based appointment system controlling Soviet positions of authority, and the privileged official class it produced; established by 1923, about 2 million CPSU posts in 1985, largely continuous with the post-Soviet Russian elite.
Nomenklatura System
The nomenklatura system (Номенклатура) was the Soviet Communist Party's mechanism for controlling appointments to responsible party, state, and economic posts, formalized by Orgburo decrees in 1923 on Stalin's initiative.
Nomex
Nomex is a DuPont trademark for a meta-aramid fiber and paper that is inherently flame-resistant, does not melt, and is used in firefighter garments, protective apparel, and electrical insulation since 1967.
Nomex honeycomb
Nomex honeycomb is a lightweight structural core made from DuPont's Nomex aramid paper dipped in phenolic resin, formed into hexagonal cells for aircraft sandwich panels.
Nomic
Nomic, invented by Peter Suber in 1982, is a self-amending game where changing the rules is a move; published in Scientific American, with variants like Pure Nomic, Minimum Nomic, and BlogNomic.
Nomic Embed
Nomic Embed is a family of fully open embedding models, text, vision, and multimodal, released by Nomic AI from February 2024 with weights, code, and data all public.
Nomifensine
Nomifensine, sold as Merital and Alival, was a tetrahydroisoquinoline antidepressant that inhibited dopamine and norepinephrine reuptake until its 1986 withdrawal over fatal immune hemolytic anemia.
Nominal group technique
Nominal group technique (NGT), a structured consensus method developed by Delbecq and Van de Ven in 1968: silent idea generation, round robin, clarification, and private ranking by groups of about 5 to 9, distinct from the Delphi method's anonymous questionnaire rounds.
Nominal interest rate
The nominal interest rate is the rate actually agreed and paid on a loan or deposit, unadjusted for inflation; the real rate is roughly nominal minus inflation.
Nominal Pipe Size
Nominal Pipe Size, also known as nominal bore, is a North American standard for naming pipe sizes, where each size is a name rather than an actual measurement.
Nominalism
Nominalism, also called via moderna, is the metaphysical view that only particular, concrete things exist, denying universals and abstract entities; William of Ockham was its key medieval exponent.
Nominalization
Nominalization (nominalisation, substantivization): forming nouns from verbs, adjectives, or clauses (destruction, happiness), or the resulting nouns; covers deverbal, deadjectival, and clausal types, cross-linguistic morphology, and style debates.
Nomination and confirmation to the Supreme Court of the United States
Nomination and confirmation to the US Supreme Court: the Article II process by which the President nominates and the Senate confirms justices, 165 nominations since 1789, Judiciary Committee hearings since 1916, and the 2017 simple-majority cloture rule.
Nominations in the 2020 Labour Party leadership election
Nominations in the 2020 Labour leadership election: two-stage process (22 MPs, then 33 CLPs or three affiliates). Starmer led with 88 MP and 58% of CLP nominations; Phillips and Thornberry were eliminated.
Nominative case
Nominative case: the grammatical case marking sentence subjects (S and A) in nominative-accusative alignment, opposed to the accusative. Usually unmarked; marked-nominative systems exist; central to Indo-European case systems and split-ergative languages like Hindi.
Nominative determinism
Nominative determinism, also called implicit egotism, is the hypothesis that people gravitate toward careers, cities, and spouses matching their names. Coined by New Scientist in 1994; evidence is mixed, with Simonsohn's 2011 confound critique against Pelham's 2002 archival studies.
Nominees in the 2026 Bangsamoro Parliament election
Nominees in the 2026 Bangsamoro Parliament election: candidates on the nominee lists of 13 accredited regional parties and sectoral organizations for the September 14, 2026 first regular BARMM parliamentary election, posted by COMELEC under Resolution No. 11216.
Nominet
Nominet, formally Nominet UK, is the British not-for-profit registry that has operated the .uk domain since 1996, managing over 10 million names and the .gov.uk registry.
Nomiya Maki
Nomiya Maki (野宮真貴), born 1960 in Hokkaido, is a Japanese singer best known as the third vocalist of Pizzicato Five from 1990 until the group disbanded in 2001.
Nommo Valles
Nommo Valles: 200 km-wide channel system (vallis) on Venus at 40.7S, 87.3E, IAU-approved 2000, named for Dogon water deities of Mali; not detectable in Magellan radar imagery.
Nomograms
Nomograms: graphical charts of statistical prediction models with scales for each variable, used in medicine to compute individualized probabilities of clinical endpoints, notably in cancer prognosis (Partin tables).
Nomoneas Islands
The Nomoneas Islands, historically called the Shiki Islands, form the eastern half of Chuuk Lagoon in Micronesia and contain Weno, the capital of Chuuk State.
Nomonhan armistice
The Nomonhan armistice was the September 15, 1939 agreement ending the undeclared border war between Japanese-Manchurian and Soviet-Mongolian forces on the Manchukuo-Mongolia frontier, known as the Nomonhan Incident or Battle of Khalkhin Gol.