All articles starting with N
16,460 articles
Nodal-line semimetal
A topological nodal-line semimetal is a 3D crystalline material whose conduction and valence bands cross along a symmetry-protected line in momentum space, unlike the point nodes of Weyl semimetals.
Nodame Cantabile (のだめカンタービレ)
Nodame Cantabile (のだめカンタービレ) is a Japanese josei manga by Tomoko Ninomiya about classical music students at a conservatory, serialized in Kiss from 2001 to 2010.
Nodar Kumaritashvili (ნოდარ კუმარიტაშვილი)
Nodar Kumaritashvili (ნოდარ კუმარიტაშვილი), Georgian luger, born 1988 Borjomi, died 12 February 2010 in a training crash at the Vancouver Olympics Whistler track at about 144 km/h, striking an unpadded steel pole.
Nodding (astronomy)
Nodding is an infrared and submillimeter observing technique in which the telescope repeatedly moves between a source and nearby blank sky, subtracting the bright atmospheric and telescope background, usually paired with chopping.
Noddy
Noddy (Knave Noddy) is the 16th-17th century English card game that is the direct ancestor of Cribbage: two players, three cards each, no crib, pegged combinations to 31, reconstructed by David Parlett from Willughby's Book of Plaies.
Noddy (character)
Noddy is the little wooden toy boy created by Enid Blyton in 1949's Noddy Goes to Toyland, famous for his nodding head and red-and-yellow car. Also known as Oui-Oui in France; 24 original books and many TV series.
Noddy Holder
Noddy Holder, born Neville John Holder in 1946, is an English singer best known as lead vocalist of glam rock band Slade from 1966 to 1992.
Node (networking)
A node in computer networking is any device or entity that processes packets, sending, receiving, or forwarding them; Internet standards define it as either a host or a router.
Node (physics)
In physics, a node is a point on a standing wave where the wave disturbance is zero at every instant, formed by two opposite waves canceling.
node-gyp
node-gyp is a cross-platform command-line tool written in Node.js for compiling native C or C++ addon modules, described as the de-facto standard build tool for Node.js addons.
Node.js
Node.js is a JavaScript runtime built on Google's V8 engine and the C++ libuv library, which supplies its event-driven, non-blocking I/O model, and has been the default server-side JavaScript runtime for over a decade.
node.vc
node.vc, launched as Node Ventures, is a Stockholm-based, sector-agnostic venture capital firm investing in early-stage startups across the Nordics and Baltics; it closed a €71 million first fund in 2024.
Node2vec
Node2vec is a graph embedding method that learns a low-dimensional vector for every node in a network by simulating biased random walks and training skip-gram on them.
NodeMCU
NodeMCU is an open-source, Lua-based firmware for the Espressif ESP8266 and ESP32 Wi-Fi systems-on-chip, together with the family of development boards originally built to run it.
Nodes of wave functions
A node of a wave function is a point, line, or surface where the wave function vanishes exactly; in one dimension, the nth bound state has exactly n−1 nodes.
Nodira
Nodira (ندیره), born Mohlaroyim in 1792, was a poetess and stateswoman of the Khanate of Kokand who served as regent for her son and was executed in 1842.
Nodjmet
Nodjmet, also written Nedjmet, was a high-ranking Theban noblewoman of the late Twentieth Dynasty, traditionally the wife of Herihor, the High Priest of Amun who took royal titles.
Nodoka Harada
Nodoka Harada (原田 のどか), born 1991, is a Japanese softball outfielder who won gold with Japan at Tokyo 2020, plus Asian Games titles in 2018 and 2022 and the 2024 World Championship.
Nodosaurus
Nodosaurus ("node lizard") is a nodosaurid ankylosaur dinosaur from the Early Cretaceous (110–100 mya) of the USA, named by Marsh in 1889 with type species N. textilis; herbivorous, about 5 m long, heavily armored, and the genus that anchors Nodosauridae.
Nodular acne
Nodular acne, also called cystic or nodulocystic acne (ICD-11 ED80.3), is severe inflammatory acne with firm, painful nodules deep in the skin. Systemic isotretinoin is the strongly recommended treatment; untreated nodules scar.
Nodular cutaneous amyloidosis
Nodular cutaneous amyloidosis (PLCNA), the rarest form of primary cutaneous amyloidosis: AL light-chain amyloid from local plasma cells forms waxy 5–20 mm nodules on acral sites, with about 7–10% risk of systemic progression.
Nodular fasciitis
Nodular fasciitis, also called pseudosarcomatous fasciitis, is a benign, self-limited soft tissue tumor that grows rapidly over weeks, mimics sarcoma, and rarely recurs after simple excision.
Nodular lichen myxedematosus
Nodular lichen myxedematosus (atypical tuberous myxedema of Jadassohn-Dosseker), ORPHA:90393, is a rare localized cutaneous mucinosis with skin-coloured mucinous nodules on limbs and trunk, without monoclonal gammopathy or thyroid disease.
Nodular lymphocyte predominant Hodgkin lymphoma
Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL, NLPBL) is a rare, indolent Hodgkin lymphoma subtype with CD20-positive LP cells, early-stage presentation, and risk of DLBCL transformation.
Nodular neuronal heterotopia
Nodular neuronal heterotopia (periventricular nodular heterotopia, PNH) is a rare malformation of cortical development in which neurons fail to migrate, forming gray-matter nodules along the ventricles; causes include FLNA and ARFGEF2 mutations, with epilepsy in 80-90% of patients.
Nodular non-suppurative panniculitis
Nodular non-suppurative panniculitis, also called Weber-Christian disease or idiopathic lobular panniculitis, is a rare disorder with recurrent fever and subcutaneous fat nodules, first described by Pfeifer in 1892 and now largely reclassified into specific panniculitides.
Nodular sclerosis Hodgkin lymphoma
Nodular sclerosis classical Hodgkin lymphoma (NSCHL), the most common classic Hodgkin lymphoma subtype (~70% in developed countries), defined by collagen bands, lacunar HRS cells, CD15+/CD30+ immunophenotype, mediastinal presentation in young adults, and BNLI NS1/NS2 grading.
Nodularia
Nodularia, a filamentous nitrogen-fixing cyanobacterium genus (Nostocales), type species N. spumigena; brackish-water bloom-former producing the hepatotoxin nodularin; distinct from the East Asian freshwater mussel genus of the same name.
Nodularia spumigena
Nodularia spumigena is a filamentous, nitrogen-fixing cyanobacterium of the order Nostocales that forms toxic summer blooms in brackish waters, most prominently the Baltic Sea, and produces the liver toxin nodularin.
Nodules of vocal cords
Nodules of vocal cords (vocal fold nodules, singer's nodes, ICD-11 CA0H.2) are benign bilateral callus-like growths at the midpoint of the vocal folds caused by phonotrauma, causing hoarseness and usually treated with voice therapy rather than surgery.