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NP may refer to:


Arts and entertainment

* ''NP'' (novel), by Japanese author Banana Yoshimoto


Organizations

*
Nashua-Plainfield Community School District Nashua-Plainfield Community School District (N-P) is a rural, public school district headquartered in Nashua, Iowa. The district, serving Nashua and Plainfield, occupies sections of four counties: Bremer, Butler, Chickasaw, and Floyd. It ...
, Iowa, United States * National Party (disambiguation), various political parties * Ngee Ann Polytechnic, Singapore * Nigeria Police Force *
Northern Pacific Railway The Northern Pacific Railway was a transcontinental railroad that operated across the northern tier of the western United States, from Minnesota to the Pacific Northwest. It was approved by Congress in 1864 and given nearly of land grants, whic ...
(AAR reporting mark NP) * November Project, free, open-to-the-public exercise group


Places

* NP postcode area, Newport, Wales, UK * Nepal (ISO 3166-1 alpha-2 country code NP) **
.np .np is the Internet country code top-level domain ( ccTLD) for Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त ...
, the country code top level domain (ccTLD) for Nepal


Science, technology and mathematics


Biology and medicine

* Nucleoside phosphorylase, an enzyme * Nurse practitioner *
Kallikrein 8 Kallikrein 8 (, ''KLK8'', ''PRSS19'', ''human kallikrein 8'', ''hK8'', ''mK8'', ''ovasin'', ''tumor-associated differentially expressed gene 14'', ''TADG-14'', ''NP'', ''neuropsin'') is an enzyme. This enzyme catalyses the following chemical react ...
, an enzyme * Neptunium, symbol Np, a chemical element *
Nosocomial pneumonia Hospital-acquired pneumonia (HAP) or nosocomial pneumonia refers to any pneumonia contracted by a patient in a hospital at least 48–72 hours after being admitted. It is thus distinguished from community-acquired pneumonia. It is usually caused by ...
*
Natriuretic peptide A natriuretic peptide is a peptide that induces natriuresis, which is the excretion of sodium by the kidneys. Known natriuretic peptides include the following: * atrial natriuretic peptide, also known as ANP * brain natriuretic peptide, also known ...


Mathematics and computer science

* NP (complexity), Nondeterministic Polynomial, a computational complexity class ** NP-complete, a class of decision problems **
NP-hard In computational complexity theory, NP-hardness ( non-deterministic polynomial-time hardness) is the defining property of a class of problems that are informally "at least as hard as the hardest problems in NP". A simple example of an NP-hard pr ...
, a class of problems in computational complexity ** Co-NP, a complexity class * Numpy a Python mathematical library * Named Pipe a method for Inter-Process Communications (IPC)


Physics and chemistry

* NP junction or PN junction in a semiconductor device *
Neper The neper (symbol: Np) is a logarithmic unit for ratios of measurements of physical field and power quantities, such as gain and loss of electronic signals. The unit's name is derived from the name of John Napier, the inventor of logarithms. As ...
(Np), a logarithmic unit for ratios * Neptunium, a chemical element with symbol Np *
Power number : For Newton number, see also Kissing number in the sphere packing problem. The power number ''N''p (also known as Newton number) is a commonly used dimensionless number relating the resistance force to the inertia force. The power-number has d ...
(Np), relating resistance force to inertia force *
Phosphorus nitride Phosphorus nitride refers to several chemical compounds of phosphorus and nitrogen: * Phosphorus mononitride * Tetraphosphorus hexanitride *Triphosphorus pentanitride Triphosphorus pentanitride is an inorganic compound with the chemical formula . ...


Other uses in science and technology

* New Proposal, in the International Organization for Standardization (ISO) standardization process *
Not placed A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end ...
, a term used in printed circuit board design to denote the omitting of a component * Nanoparticle * Noun phrase, in grammar


Other uses

*
No problem ''No problem'' is an English expression, used as a response to '' thanks'' (among other functions). It is regarded by some as a less formal alternative to ''you're welcome'', which shares the same function. Informality Some people find the expre ...
* Notary public, post-nominal


See also

* * *
Enpi (disambiguation) Enpi may refer to: *Enpi (elbow strike), a Japanese martial arts term meaning "elbow strike" *Enpi (kata), a kata found in Shotokan and other karate styles *ENPI, European Neighbourhood and Partnership Instrument, the funding instrument of the Euro ...
*
NPS (disambiguation) NPS may refer to: Organizations * National Park Service, U.S. * National Pension System, India * National Pension Service, Korea * National Phobics Society, UK charity * National Piers Society, UK charity * National Poetry Slam, competition ...
*
PN (disambiguation) PN may refer to: Arts and entertainment * ''Purple Noon'', a 1960 film * Patriotic Nigras, a griefing group in the game ''Second Life'' Business and economics * Pacific National, a rail freight company in Australia * Participatory notes, iss ...
* N (disambiguation) * P (disambiguation) {{Disambiguation