All articles starting with N
16,460 articles
Niobium pentoxide
Niobium pentoxide (Nb₂O₅), also called niobium(V) oxide, is a white, water-insoluble solid and the most stable compound of niobium, with over 15 crystalline phases and uses in lithium-ion batteries, optical glass, and capacitors.
Niobium-based oxide anode
A niobium-based oxide anode is a lithium-ion battery anode material using niobium oxides, alone or with titanium or tungsten, that charges fast without lithium dendrites or SEI growth.
Niobium–tin
Niobium–tin (Nb3Sn) is a superconducting intermetallic compound of niobium and tin, discovered in 1954 with a then-record 18 K transition temperature and used in high-field magnets for fusion reactors and particle accelerators.
Niobium–titanium
Niobium–titanium (NbTi) is a ductile alloy superconductor, typically 46–48 percent titanium, used in the magnets of the LHC, clinical MRI machines, and the ITER fusion reactor.
Niobrara
The Niobrara is a river in northern Nebraska flowing east to the Missouri River, with 76 miles designated as a national scenic river in 1991.
Niobrara Formation
The Niobrara Formation is a Late Cretaceous unit of chalk, limestone, and shale deposited in the Western Interior Seaway, named by Meek and Hayden in 1862.
Niobrara Founders Fund
Niobrara Founders Fund LP is a 2024 Delaware private equity fund managed by New York firm Niobrara Capital Partners, targeting $750 million for middle-market technology buyouts led by Chip Schorr.
Nioh (仁王)
Nioh (仁王) is a 2017 Team Ninja/Koei Tecmo action RPG for PS4, set in demon-haunted 1600 Japan with William Adams; Ki Pulse combat, Dark Souls influence, spawned Nioh 2 and Nioh 3.
Nioh 2
Nioh 2 (仁王2) is Team Ninja's masocore action RPG, released March 12, 2020 for PS4 and later PS5 and PC, set in Sengoku Japan; its half-yokai protagonist uses Ki Pulse, stances, Burst Counter, Soul Cores, and Yokai Shift. Metacritic 85.
Nioh 3
Nioh 3 (仁王3) is Team Ninja's 2026 action RPG for PS5 and PC, the third Nioh entry, adding open-field exploration and switchable Samurai and Ninja combat styles to the soulslike series.
Niokolo-Koba National Park
Niokolo-Koba National Park is a vast savanna park in southeastern Senegal along the Gambia River, a UNESCO World Heritage Site since 1981, home to one of West Africa's last viable lion populations.
Nioman
Nioman (Нёман, Neman) is a monthly Russian-language literary journal published in Minsk, Belarus, tracing its origins to the 1945 almanac Otchizna and renamed Neman in 1960.
Nion Tucker
Nion Robert Tucker (1885–1950), American investment broker and Cal alumnus; won 1928 St. Moritz Olympic gold in five-man bobsled for USA 2 after answering a newspaper ad, later linked to United Airlines and the San Francisco Chronicle.
Nios (processor)
Nios is a family of soft-core microprocessors from Altera, now part of Intel, implemented as configurable logic inside an FPGA rather than as a fixed silicon chip.
Nios II
Nios II is a 32-bit RISC soft-core processor designed by Altera, now part of Intel, and delivered as synthesizable HDL implemented on the company's FPGAs since its 2004 launch.
Nip the Buds, Shoot the Kids
Nip the Buds, Shoot the Kids (芽むしり仔撃ち, Memushiri kōchi) is a 1958 novel by Japanese writer Kenzaburo Oe, his first, following reformatory boys abandoned in a quarantined wartime mountain village.
NIP theory
NIP theory, also called a dependent theory, is a first-order theory in which no formula has the independence property. Introduced by Saharon Shelah, it is a central tameness dividing line in model theory.
Nip/Tuck
Nip/Tuck is an FX drama series (2003-2010, six seasons) created by Ryan Murphy about plastic surgeons Sean McNamara and Christian Troy of the McNamara/Troy practice, first in Miami then Los Angeles.
Nipa hut
The nipa hut, known in Tagalog as bahay kubo and in Visayan as payag, is the traditional Philippine stilt house of bamboo, wood, and nipa thatch.
Nipa Tholus
Nipa Tholus is a 140-km-wide volcanic dome (tholus) on Venus at 8.40° N, 255.70° E in the Hecate Chasma quadrangle V-28, named for the Algonquin moon goddess and IAU-approved in 2003.
Nipah virus
Nipah virus (Henipavirus nipahense, NiV) is a zoonotic paramyxovirus carried by Pteropodid fruit bats, first identified in Malaysia in 1998, causing encephalitis outbreaks in Bangladesh and India with 40-75% case fatality and no licensed vaccine.
Nipah virus infection
Nipah virus infection, also called Nipah virus disease, is a zoonotic Paramyxoviridae (Henipavirus) infection from Pteropodidae fruit bats causing encephalitis and respiratory illness, with 40–75% case fatality, no licensed vaccine or treatment, and outbreaks in Bangladesh, India, Malaysia, the Philippines, and Singapore.
Nipam H. Patel
Nipam H. Patel is an American developmental and evolutionary biologist who directs the Marine Biological Laboratory in Woods Hole, Massachusetts, and was elected to the National Academy of Sciences in 2024.
NIPBL
NIPBL (Nipped B-like, delangin, Scc2) is a human chromosome 5 gene encoding the cohesin loader that activates cohesin's ATPase for loop extrusion; mutations cause Cornelia de Lange syndrome.
Nipigon
Lake Nipigon, northwestern Ontario's largest lake entirely within the province, drains via the Nipigon River into Lake Superior as its largest tributary; area 4,848 km2, record 1915 brook trout, Nipigon Bay AOC delisted 2026.
Nipisi Oil and Gas Field
Nipisi is an oil and gas field in northwestern Alberta, Canada, discovered in 1965, with an estimated 909 million barrels of original oil in place.
Nipissing
Nipissing (Lake Nipissing) is a large shallow lake in north-central Ontario draining via the dammed French River to Georgian Bay, home of Nipissing First Nation and a heavily managed walleye fishery.
Nipocalimab
Nipocalimab (Imaavy, M281, JNJ-80202135) is a fully human aglycosylated IgG1 monoclonal antibody blocking FcRn to lower IgG; FDA-approved in 2025 for generalized myasthenia gravis and in 2026 for warm autoimmune hemolytic anemia.
Nipper
Nipper, the terrier of Francis Barraud's 1898 painting "His Master's Voice" (His Master's Voice), became the trademark of the Gramophone Company, Victor, and RCA; sold for £100 in 1899, the mark now belongs to Talisman Brands.
Nipple
Nipple: the central structure of each breast, with about nine milk duct openings, smooth erectile muscle, and hundreds of nerves, surrounded by the areola; types include protruding, flat, and inverted, with polythelia in 2-5% of people.