All articles starting with H
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Heckler & Koch HK416
The Heckler & Koch HK416 is a German 5.56mm assault rifle built on the M4 pattern but with a gas piston system, adopted by France, Norway, and Germany.
Heckler & Koch HK417
The Heckler & Koch HK417 is a German assault rifle in 7.62 mm NATO made by Heckler & Koch, the larger-caliber counterpart of the HK416.
Heckler & Koch HK433
The Heckler & Koch HK433 is a modular German assault rifle in 5.56 mm NATO, unveiled in January 2017, combining features of the G36 and HK416 rifle families.
Heckler & Koch HK45
The Heckler & Koch HK45 is a German .45 ACP semi-automatic pistol, a product improvement of the USP45, developed as a candidate for a U.S. military pistol program.
Heckler & Koch Mark 23
The Heckler & Koch Mark 23 is a large-frame .45 ACP pistol built for US Special Operations Command, adopted in 1996 as the MK 23 Mod 0.
Heckler & Koch MG4
The Heckler & Koch MG4 is a belt-fed 5.56 mm light machine gun made by German manufacturer Heckler & Koch, the Bundeswehr's light squad-support weapon.
Heckler & Koch MG5
The Heckler & Koch MG5 (HK MG5) is a German 7.62 mm NATO belt-fed general-purpose machine gun, developed as the HK121 and selected by the Bundeswehr in 2013 to replace the MG3.
Heckler & Koch MP5
The Heckler & Koch MP5 (HK MP5) is a German 9 mm submachine gun derived from the G3 rifle and adopted by West Germany in 1966.
Heckler & Koch MP7
The Heckler & Koch MP7, also known as HK MP7, is a compact submachine gun chambered for the 4.6 mm x 30 cartridge, developed for non-infantry soldiers and police.
Heckler & Koch P30
The Heckler & Koch P30 is a hammer-fired, polymer-framed semi-automatic pistol made by German manufacturer Heckler & Koch, chambered in 9 mm and used by German and Norwegian police forces.
Heckler & Koch P7
The Heckler & Koch P7 (HK PSP) is a German 9 mm semi-automatic pistol with a gas-delayed blowback system and a squeeze cocker, produced from 1979 to about 2008.
Heckler & Koch PSG1
The Heckler & Koch PSG1 (PSG-1) is a German semi-automatic sniper rifle in 7.62×51mm NATO, derived from the G3 and adopted by police units including Germany's GSG 9.
Heckler & Koch UMP
The Heckler & Koch UMP (Universale Maschinenpistole) is a select-fire submachine gun released in 1999 by Heckler & Koch as a lighter, lower-cost successor to the MP5, chambered in 9x19mm, .40 S&W, or .45 ACP.
Heckler & Koch USP
The Heckler & Koch USP, or Universal Self-loading Pistol, is a semi-automatic pistol introduced by Germany's Heckler & Koch in 1993 and adopted by the Bundeswehr as the P8.
Heckler & Koch VP9
The Heckler & Koch VP9 is a polymer-framed, striker-fired 9 mm semi-automatic pistol from German maker Heckler & Koch, introduced in the United States in 2014.
Heckler & Koch XM8
The Heckler & Koch XM8, or XM8 rifle, was a modular 5.56 mm assault rifle developed for the United States Army from 2002 until the program ended in 2005.
Heckman correction
The Heckman correction, also known as the Heckit method, is a two-step econometric procedure proposed by James Heckman in 1979 that corrects for sample selection bias.
Heckscher–Ohlin model
The Heckscher–Ohlin model, also known as the Heckscher–Ohlin–Samuelson model, is a general-equilibrium theory of trade in which countries export goods intensive in their abundant factors, developed by Eli Heckscher and Bertil Ohlin.
Hecla Mining
Hecla Mining Company is an American mining company based in Coeur d'Alene, Idaho. Founded in 1891, it is the largest silver producer in the United States and Canada.
HECT domain
HECT domain (homologous to E6AP C-terminus), a ~350-residue catalytic module of E3 ubiquitin ligases; forms a thioester intermediate with ubiquitin on a conserved cysteine; 28 human HECT E3s in NEDD4, HERC, and other subfamilies.
HECT-domain E3 ubiquitin ligases
HECT-domain E3 ubiquitin ligases are a family of 28 human enzymes that attach ubiquitin to target proteins through a covalent ubiquitin-thioester intermediate, unlike RING ligases, which act only as scaffolds.
Hectare
The hectare, equal to one square hectometre or 10,000 square meters, is a metric unit accepted for use with the SI and standard for land area.
Hecticoceras
Hecticoceras is an extinct genus of oppeliid ammonite cephalopods from Middle Jurassic (Callovian) seas of Europe, India, and the Americas; type species Hecticoceras hecticum (Reinecke, 1818), type genus of Hecticoceratinae.
Hectocotylus
Hectocotylus: the modified mating arm of male cephalopods (octopods, squids, cuttlefishes) used to transfer spermatophores to females; typically the third right arm in octopuses, autotomized in Argonauta, Tremoctopus, and Ocythoe, and absent in some species like Ascarosepion tullbergi.
Hector (κτωρ)
Hector (Greek Ἕκτωρ, Hektor), eldest son of Priam and Hecuba and husband of Andromache, is the chief Trojan warrior of the Iliad, Troy's mainstay until Achilles kills him in Book 22 after Athena's deception.
Héctor Acosta
Héctor Acosta, known as "El Torito", is a Dominican merengue and bachata singer who fronted Los Toros Band from 1991 to 2006 and serves as a senator.
Hector and the Search for Happiness (film)
Hector and the Search for Happiness is a 2014 comedy-drama directed by Peter Chelsom, in which Simon Pegg plays a disillusioned London psychiatrist traveling the world for happiness.
Hector Barbossa
Hector Barbossa is the fictional pirate captain of Disney's Pirates of the Caribbean films, played by Geoffrey Rush; main villain of The Curse of the Black Pearl, later privateer, and Carina's sacrificing father in Dead Men Tell No Tales.
Héctor Bellerín
Héctor Bellerín Moruno (born 1995, Barcelona) is a Spanish right-back for Real Betis; La Masia product, Arsenal 2011-2022 with three FA Cups, then Barcelona, Sporting CP, and Betis since July 2023.
Héctor Beltrán Leyva
Héctor Beltrán Leyva, alias "El H", led the Beltrán Leyva Organization after his brother Arturo's 2009 death, was arrested in San Miguel de Allende in October 2014, and died in Altiplano prison in 2018.