All articles starting with H
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Hyaluronic acid injection
A hyaluronic acid injection delivers hyaluronan gel into tissue, either into the knee joint to relieve osteoarthritis pain or into facial soft tissue to fill lines and restore volume.
Hyaluronidase (drug)
Hyaluronidase (rHuPH20, HYLENEX recombinant) is an injectable enzyme degrading hyaluronic acid, FDA-approved for hypodermoclysis, drug dispersion, and urography, and used off-label to dissolve HA fillers and as an anesthesia adjunct.
Hyaluronidase (gene)
Hyaluronidase (gene) family: six human genes HYAL1, HYAL2, HYAL3, HYAL4, SPAM1/PH-20, HYALP1 on chromosomes 3p21.3 and 7q31.3, encoding hyaluronan-degrading enzymes; HYALP1 is a human pseudogene, rodents add HYAL5.
Hyaluronidase deficiency
Hyaluronidase deficiency (MPS IX, Natowicz syndrome) is an ultra-rare autosomal recessive lysosomal storage disease caused by HYAL1 deficiency, with hyaluronan storage, periarticular masses, and joint disease; only four patients reported.
Hyampolis
Hyampolis (Υάμπολις), ancient city of Phocis, central Greece, near modern Exarchos and Kalapodi; founded by the Hyantes of Thebes, famed for Phocian victories over Thessalians, burned by Xerxes, razed by Philip II in 346 BC.
Hyan (wrestler)
Hyan (Hyaneyoung Gerard, née Olvera; born 1992, Houston, Texas) is an American professional wrestler trained by Booker T at Reality of Wrestling, a multi-time independent champion now in AEW and ROH as half of Hyan & Maya World.
Hyangchal
Hyangchal (향찰) was a Korean writing system of the Three Kingdoms period that used borrowed Chinese characters to write Korean, best known for recording hyangga poetry.
Hyangga
Hyangga (향가), also called Silla gayo, is the vernacular formal lyric poetry of Silla and early Goryeo Korea, recorded in hyangchal notation; 26 poems survive, making it Korea's first fixed-form vernacular verse.
Hyanggyo
Hyanggyo (향교) were government Confucian schools in Goryeo and Joseon Korea, one per county, that trained local men for state service; 231 survive in South Korea.
Hyangjang
Hyangjang (향직, hyangjik) is the rank system used in Goryeo Korea alongside the civil and military scattered ranks, with 9 grades in 16 ranks held by local functionaries.
Hyangyak
Hyangyak (향약; 鄕約) was a village covenant promoting good conduct and mutual aid in rural Korea, adapted from a Chinese Neo-Confucian model in the early 16th century.
Hyangyak Gugeupbang
Hyangyak Gugeupbang (향약구급방) is a Korean emergency-medicine formulary first published around 1236 during the Goryeo Dynasty, and the oldest medical recipe book extant in Korea.
Hyangyak Jipseongbang
Hyangyak Jipseongbang (향약집성방) is an 85-volume Korean medical encyclopedia completed in 1433 under King Sejong, gathering prescriptions based on medicinal herbs produced in the Korean peninsula.
Hyapatia Lee
Hyapatia Lee, born Vicki Lynch in 1960 in Indianapolis, is a former American adult film star of Cherokee and Irish descent, AVN Best Actress 1991 for The Masseuse, AVN/XRCO Hall of Fame member, and later author of the Native Strength books.
Hyatt
Hyatt, formally Hyatt Hotels Corporation, is a Chicago-based hospitality company founded by Jay Pritzker in 1957, operating more than 1,450 hotels and resorts in 82 countries.
Hyatt Regency
Hyatt Regency is an upper-upscale, full-service hotel brand of Hyatt Hotels Corporation aimed at business travelers and large meetings, with more than 200 hotels and resorts in over 40 countries.
Hyatt Regency walkway collapse
The Hyatt Regency walkway collapse, also known as the Hyatt Regency disaster, was a 1981 structural failure in Kansas City, Missouri, in which two suspended hotel skywalks fell, killing 114 people.
Hybe Corporation
Hybe Corporation (하이브), formerly Big Hit Entertainment (founded 2005 by Bang Si-hyuk, renamed March 2021), is the South Korean multi-label K-pop company behind BTS, Weverse, Pledis, ADOR, and Belift Lab, and one of Korea's Big Four agencies.
Hyblaeus Dorsa
Hyblaeus Dorsa, an IAU-approved ridge system (dorsum) on Mars, 887.53 km across, centered at 13.16°N, 130.32°E; approved 2003, named for the classical albedo feature Hyblaeus, with unusually low SHARAD radar loss tangent.
Hyblaeus Fossae
Hyblaeus Fossae is a 375-km-wide system of troughs on Mars southwest of Elysium Mons, cutting the Elysium rise; its albedo-feature name was adopted by the IAU in 1985.
Hybodus
Hybodus is an extinct genus of hybodontiform shark, type species H. reticulatus from the Lower Jurassic of Lyme Regis; a wastebasket taxon of 2-3 m spined sharks from Triassic to Late Cretaceous.
Hyborian Age
The Hyborian Age is Robert E. Howard's fictional prehistoric era and setting for the Conan the Cimmerian stories, defined by his 1932 essay, linking Kull's Thurian Age to recorded history.
Hybosoridae
Hybosoridae, scavenger scarab beetles, are a cosmopolitan Scarabaeoidea family of 96 genera and 723 species in five extant subfamilies, defined by a three-segmented antennal club and tarsi inserted before the protibial apex.
Hybotidae
Hybotidae: a worldwide family of predaceous dance flies (Diptera, Empidoidea), defined by a palpifer, fore tibial gland, bare laterotergite, and unbranched R4+5; subfamilies Hybotinae, Ocydromiinae, Tachydromiinae.
Hybrid (biology)
Hybrid (biology): offspring of genetically distinct parents, often different species. Plant hybrids show sterility or inviability, drive speciation via polyploidy or introgression, and power heterosis in hybrid crops.
Hybrid × Heart Magias Academy Ataraxia
Hybrid × Heart Magias Academy Ataraxia (魔装学園H×H, Masō Gakuen H×H) is Masamune Kuji's ecchi light novel series, Kadokawa Sneaker Bunko 2014–2022, 14 volumes, with manga by Riku Ayakawa and a 2016 Production IMS anime.
Hybrid A*
Hybrid A is a path-planning algorithm for non-holonomic vehicles such as cars, introduced by Dmitri Dolgov and colleagues at Stanford and used in the 2007 DARPA Urban Challenge.
Hybrid ablation
Hybrid ablation is a treatment for atrial fibrillation that combines minimally invasive surgical ablation on the outside of the heart with catheter ablation on the inside, so lesions extend through the full atrial wall.
Hybrid Air Vehicles Airlander 10
The Airlander 10, nicknamed the Flying Bum, is a British hybrid aircraft by Hybrid Air Vehicles carrying 100 passengers or 10 tonnes of freight, with up to five days airborne and no runway needed.
Hybrid airship
A hybrid airship is a powered lighter-than-air vehicle that derives lift from both buoyant gas and aerodynamic hull shape, letting it load and unload without ballast.