All articles starting with H

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H.E.S.S.

H.E.S.S., the High Energy Stereoscopic System, is an array of five imaging atmospheric Cherenkov telescopes in Namibia that detects very-high-energy gamma rays from cosmic sources.

H.E.S.S. Galactic Plane Survey

The H.E.S.S. Galactic Plane Survey (HGPS) is a survey of the Milky Way in very high-energy gamma rays, observed with telescopes in Namibia from 2004 to 2013 and published in 2018.

H.E.S.S. II

H.E.S.S. II, also called CT5, is the fifth and largest telescope of the H.E.S.S. array in Namibia, a 28-meter Cherenkov telescope that began observing gamma rays in 2012.

H.I.G. Bayside Loan Opportunity Funds

The H.I.G. Bayside Loan Opportunity Funds are a series of private debt funds buying stressed and distressed loans, managed by H.I.G. Bayside Capital in Miami.

H.I.G. Capital

H.I.G. Capital is a global alternative investment firm founded in 1993 by Sami Mnaymneh and Tony Tamer, headquartered in Miami, Florida, with about $75 billion under management.

H.I.G. Europe Middle Market LBO Fund

The H.I.G. Europe Middle Market LBO Fund is a private equity fund vehicle of Miami-based H.I.G. Capital, targeting European middle-market buyouts; its first fund closed at €2 billion in 2021.

H.I.V.E.

H.I.V.E. (Hierarchy of International Vengeance and Extermination) is a fictional DC Comics criminal organization, debuting circa Action Comics #513 or Superman Family #205 (1980-1981), founded by the H.I.V.E. Master, led at times by Adeline Kane, Queen Bee, and Damien Darhk, and best known for contracting Deathstroke against the Teen Titans.

H.J. Evans

H.J. Evans, also known as H. John Evans, was a Welsh human cytogeneticist who directed the MRC Human Genetics Unit in Edinburgh from 1969 to 1994, known for chromosome banding.

H.J. Gruy

H.J. Gruy, known as Hank Gruy, was an American petroleum engineer who founded H.J. Gruy and Associates and joined the National Academy of Engineering in 1989.

H.L. Kornberg

H.L. Kornberg, born Hans Leo Kornberg (1928–2019), was a British-American biochemist who discovered the glyoxylate cycle, coined the term "anaplerotic" reactions, and held biochemistry chairs at Leicester, Cambridge, and Boston University.

H.M.S. Pinafore

H.M.S. Pinafore; or, The Lass that Loved a Sailor is an 1878 two-act comic opera by Gilbert and Sullivan, premiered at London's Opera Comique. Its 571-performance run, satire of the Admiralty, and American Pinafore-mania made the pair international celebrities.

H.O.R.D.E.

H.O.R.D.E. (Horizons of Rock Developing Everywhere) was a traveling US rock festival founded in 1992 by Blues Traveler's John Popper and manager Dave Frey, touring 1992-1998 as the jam-band rival to Lollapalooza and launching the Dave Matthews Band, Sheryl Crow, and Joan Osborne.

H.O.T.

H.O.T. (에이치오티, High-five Of Teenagers), five-member SM Entertainment boy group debuting September 7, 1996; first K-pop idol group, million-selling albums, Seoul Olympic Stadium 1999, disbanded 2001, reunited 2018 and 2025.

H.R. College of Commerce and Economics

H.R. College of Commerce and Economics, named for Hassaram Rijhumal, is a commerce college in Churchgate, Mumbai, founded in 1960 and now a lead college of HSNC University.

H.R. Mahler

Henry R. Mahler (died July 1983) was a biochemist and molecular biologist at Indiana University Bloomington, remembered as "Mr. Mitochondria" for his yeast mitochondrial genetics research.

H.R. Pufnstuf

H.R. Pufnstuf is a 1969 NBC Saturday-morning live-action puppet series by Sid and Marty Krofft: boy Jimmy, his flute Freddy, dragon mayor Pufnstuf, and Witchiepoo on Living Island; 17 episodes, McDonaldland lawsuit, lasting cult status.

H.W. Nesbitt

H.W. Nesbitt, or H. Wayne Nesbitt, is a Canadian geochemist and Royal Society of Canada fellow at Western University known for work on continental weathering and rare earth elements.

H'uraru Corona

H'uraru Corona is a 150-km-diameter corona (volcano-tectonic feature) on Venus at 9.00°N, 68.00°E, named for the Pawnee earth mother and adopted by the IAU in 1994.

H/ACA box snoRNAs

H/ACA box snoRNAs are small non-coding RNAs with a conserved two-hairpin structure that guide pseudouridylation of ribosomal RNA and snRNAs, working with the pseudouridine synthase dyskerin; humans have 190.

H/ACA ribonucleoprotein complex, subunit Gar1/Naf1

Gar1/Naf1 domain family of box H/ACA ribonucleoproteins: Gar1 is a mature RNP core subunit and Naf1 an assembly factor; both bind the pseudouridine synthase Cbf5/dyskerin at a shared, structurally homologous surface, with Naf1 replaced by Gar1 during maturation.

H/St

H/St (C3H/St) is a substrain of the C3H inbred laboratory mouse, used in Strong and Matsunaga's 1977 study of a transmissible entity causing regression of spontaneous mammary tumors.

H&E stain

H&E stain (hematoxylin and eosin), also called haematoxylin-eosin, is the routine histopathology stain: hematoxylin with a metal mordant colors nuclei blue-purple, eosin colors cytoplasm pink; derived from logwood, established 1875–1878.

H&M

H&M (Hennes & Mauritz) is a Swedish multinational fashion retailer founded by Erling Persson in Västerås in 1947 as Hennes; renamed after the 1968 Mauritz Widforss acquisition, listed in 1974, now a multi-brand group competing with Zara and Shein.

H&R Block

H&R Block is a Kansas City-based tax preparation company serving consumers and small businesses through retail offices, franchises, and online software in the US, Canada, and Australia.

H+: The Digital Series

H+: The Digital Series (H Plus) is a 2012 American science-fiction web series created by John Cabrera and Cosimo De Tommaso, produced by Bryan Singer, released on YouTube in 48 five-minute episodes about an Internet implant whose virus kills a third of humanity.

H0LiCOW

H0LiCOW (H0 Lenses in COSMOGRAIL's Wellspring) is an international collaboration measuring the Hubble constant from lensed quasars, finding a value in tension with Planck CMB predictions.

H1 antagonist

H1 antagonist (H1-antihistamine): inverse agonist drug blocking histamine at the H1 receptor; first synthesized 1937 by Bovet; first-generation (1942 onward) sedating, second-generation (cetirizine, loratadine, fexofenadine) non-sedating first-line for rhinitis and urticaria.

H1 Insights

H1 Insights is a New York-based healthcare commercial-data company founded by Ariel Katz and Ian Sax in 2017, selling AI-driven doctor intelligence to pharmaceutical and health-plan companies.

H1-0

H1-0, also written H1F0, is the human gene encoding histone H1.0, a linker histone on chromosome 22 that accumulates as cells stop dividing and condenses chromatin.

H1-1

H1-1 (H1.1, formerly HIST1H1A, HGNC:4715) is a human intronless gene at 6p22.2 encoding the replication-dependent linker histone H1.1, a weak chromatin condenser with a distinct genomic binding profile among H1 subtypes.