All articles starting with P
28,818 articles
Prussian blue nanoparticles
Prussian blue nanoparticles (PBNPs) are nanoscale particles of Prussian blue, a mixed-valence iron coordination compound studied in nanomedicine as drug carriers, imaging contrast agents, antidotes, photothermal agents, and enzyme-mimicking catalysts.
Prussian Blue Reaction
The Prussian blue reaction, also known as Perls' stain or the iron stain, is a histochemical technique that detects ferric iron in tissues, described by Max Perls in 1867.
Prussian blue sodium-ion battery
A Prussian blue sodium-ion battery is a rechargeable sodium-ion battery using Prussian blue analog electrodes, offering high power, long cycle life, and low cost but low energy density.
Prussian Colonization Commission
The Prussian Colonization Commission (Königlich-Preußische Ansiedlungskommission) was a Prussian state agency created in 1886 to buy Polish-owned estates and settle German farmers in Posen and West Prussia.
Prussian Confederation
Prussian Confederation (Związek Pruski, Preußischer Bund), league of Prussian cities and knighthood founded 14 March 1440 against the Teutonic Order; its suppression triggered the Thirteen Years' War (1454–1466) and the 1466 partition creating Royal Prussia.
Prussian Crusade
The Prussian Crusade was a series of papally sanctioned wars fought mainly by the Teutonic Order from 1230 to 1283 to conquer and convert the pagan Prussian tribes.
Prussian estates
The Prussian estates were the corporate political bodies of the Prussian nobility, towns, and higher clergy that negotiated taxation and government with rulers, from Teutonic Order rule through Hohenzollern absolutism.
Prussian Expropriation Act of 1908
The Prussian Expropriation Act of 1908 (Enteignungsgesetz) was a Prussian law of 20 March 1908 authorizing the forced expropriation of Polish landowners in West Prussia and Posen.
Prussian G 12
The Prussian G 12, also known as the Württemberg G 12, was a German three-cylinder heavy freight steam locomotive, a wartime standard design built from 1917.
Prussian Homage
The Prussian Homage (Hołd pruski) was the 1525 feudal act in Kraków where Albrecht Hohenzollern knelt before Sigismund I and received Ducal Prussia as a Polish fief.
Prussian semaphore system
The Prussian semaphore system was an optical telegraph of the Kingdom of Prussia, carrying state and military messages between Berlin and Koblenz from 1833 to 1852.
Prussian state railways
The Prussian state railways, or Preußische Staatseisenbahnen, were the state-owned railways of the Kingdom of Prussia. Expanded by nationalization after 1879, they reached 39,030 km in 1912 and became the Deutsche Reichsbahn in 1920.
Prussian three-class franchise
Dreiklassenwahlrecht: Prussia's 1849-1918 tax-based, indirect, non-secret franchise for the Abgeordnetenhaus; three classes each paid one-third of taxes, giving first-class voters about 17.5 times third-class voting weight.
Prussian white
Prussian white (Na₂Fe[Fe(CN)₆]) is a sodium iron hexacyanoferrate cathode material for sodium-ion batteries, commercialized by CATL in 2021 at 160 Wh/kg and prized for fast sodium-ion transport and cobalt-free chemistry.
Prutz hydroelectric plant
The Prutz hydroelectric plant in Tyrol, Austria, is the powerhouse of the Kaunertal storage power station, dropping water about 900 meters from the Gepatsch reservoir.
Pruven Capital Partners
PruVen Capital Partners is a multi-stage venture capital firm in Palo Alto, California, founded by Ramneek Gupta in 2020, backed by Prudential and managing about $678 million.
Pruxelutamide
Pruxelutamide (proxalutamide, GT0918), a second-generation androgen receptor antagonist from Suzhou Kintor, developed for prostate cancer and trialed for breast cancer and COVID-19.
Prymnessus
Prymnessus, also Prymnessos (Greek Πρυμνησία), was a city of central Phrygia at modern Sülün, 8 km south of Afyon, Turkey, with polis status and its own bronze coinage.
Pryon
Pryon Inc is an American enterprise AI company founded in 2017 by Igor Jablokov, whose Yap speech startup was acquired by Amazon to build Alexa; it sells a RAG platform for enterprise knowledge bases.
Prysm (company)
Prysm, originally incorporated as Spudnik, Inc., was a San Jose display company founded in 2005 by Amit Jain and Roger Hajjar that built large-format, bezel-free LPD video walls.
PRYSM Chicago
PRYSM Chicago, also known as PRYSM Nightclub, is an electronic music nightclub in Lincoln Park, Chicago, opened in 2016 in the longtime home of the club Crobar.
Prysmian
Prysmian is an Italian cable manufacturer headquartered in Milan and the market leader in submarine power cables, with about 24 percent of that market in 2025.
Prytanis (crater on Dione)
Prytanis is a 96-km-wide IAU-approved impact crater on Saturn's moon Dione, centered at -46.25°, 287.40°, named after a Trojan in Virgil's Aeneid and approved March 17, 2008.
Przemyśl
Przemyśl: city on the San River in southeastern Poland near the Ukrainian border; Austro-Hungary's largest fortress, besieged and captured in WWI (surrender 22 March 1915); medieval old town, border rail hub.
Przemysł II
Przemysł II (1257–1296) was a Piast duke of Greater Poland crowned king of Poland in Gniezno in 1295, the first Polish coronation in over 200 years.
Przemysław Sapieha
Przemysław (Mike) Sapieha is a Polish-born Canadian professor at the Université de Montréal who studies retinal vascular disease, including diabetic retinopathy, and helped develop the senolytic drug UBX1325.
Przesłanie Pana Cogito
"Przesłanie Pana Cogito" ("The Envoy of Mr. Cogito") is a 1974 poem by Zbigniew Herbert, the closing poem of his volume Pan Cogito and his most popular.
Przewalski's horse
Przewalski's horse (Equus ferus przewalskii, takhi) is the last truly wild horse, extinct in the wild in 1969, saved by captive breeding from 13 founders, and reintroduced to Mongolia, China, Kazakhstan, and Chernobyl; 66 chromosomes.
Przybylski's Star
Przybylski's Star (HD 101065, also V816 Centauri) is an eighth-magnitude chemically peculiar star in Centaurus with extreme rare-earth overabundances, reported radioactive-element lines, and 12-minute oscillations.
PS Djz
PS DJz are a South African DJ and production duo of brothers Prince and Promise, working in amapiano, electro, hip hop, and dance since 2014.