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Iosif Sifakis

Iosif Sifakis (Ιωσήφ Σηφάκης) is a Greek computer scientist, born in Heraklion in 1946, who shared the 2007 Turing Award for developing model checking, the leading industrial verification method.

Iosif Sirbu

Iosif Sîrbu was a Romanian sport shooter who won small-bore rifle prone gold at the 1952 Olympics with a perfect 400 score, Romania's first Olympic champion.

Iosif Vulcan

Iosif Vulcan (1841–1907) was a Romanian publicist, lawyer, and writer who founded the magazine Familia at Pesta in 1865 and coined Mihai Eminescu's pen name in 1866.

Iota Draconis

Iota Draconis, also known as Edasich, is a K-type giant star in Draco about 101 light-years away and hosts the first planet found around a giant star.

Iota Herculis

Iota Herculis is a slowly rotating B3 subgiant of magnitude 3.82 in Hercules, about 455 light-years away, a slowly pulsating binary star used by astronomers as an abundance standard.

Iota Horologii

Iota Horologii (ι Hor) is a young, metal-rich F-type star in the southern constellation Horologium, about 56 light years away, hosting a Jupiter-like planet found in 1999.

Iota Orionis

Iota Orionis, also known as Nair al Saif, is a massive multiple star system at the southern tip of Orion's Sword, with the most massive known heartbeat star.

Iota Pegasi

Iota Pegasi is a naked-eye double-lined spectroscopic binary star in the constellation Pegasus, about 38 light-years from Earth, where an F5 and a G8 star orbit every 10.2 days.

Iota Persei

Iota Persei is a yellow dwarf star of spectral type G0V in the constellation Perseus, about 34.4 light-years from the Sun, visible to the naked eye at magnitude 4.05.

Iota Piscium

Iota Piscium is a yellow-white F-type main-sequence star in the zodiac constellation Pisces, about 45 light years from the Sun and visible to the naked eye.

Iota Ursae Majoris

Iota Ursae Majoris, also called Talitha, is a quadruple star system about 47.3 light-years from the Sun in the constellation Ursa Major, visible to the naked eye.

Iota Virginis

Iota Virginis, named Syrma, is a yellow F-type giant of magnitude 4.08 in Virgo, about 72.5 light-years away and a probable binary with a 55-year orbit.

Iotape

Iotape (Iotapa, Aytap) is an ancient Roman coastal city in Rough Cilicia, modern Antalya Province, Turkey, founded by Antiochus IV of Comm. and named for his wife, Queen Iotapa.

Iothalamic acid

Iothalamic acid is a tri-iodinated benzoic acid derivative that serves as a high-osmolality X-ray contrast agent marketed as Conray, and its radioiodinated sodium salt measures glomerular filtration rate.

Iotrolan

Iotrolan (Isovist, Osmovist) is a non-ionic dimeric, iso-osmolar iodinated X-ray contrast medium (ATC V08AB06, MW 1626.24) used intrathecally for myelography and for arthrography; FDA-approved 1989, later discontinued in the US and Canada.

Iotunn

Iotunn is a Danish/Faroese progressive metal band formed in Copenhagen in 2015, whose name is Old Norse for "Giant"; its albums include Access All Worlds (2021) and Kinship (2024).

Ioullemmedene

Ioullemmedene (Ioulemeddène, Oulemeden, Iwellemmedan) is a region in Mali at 16°N, 1°E; the name also denotes a major Tuareg confederation and the 525,000 km2 Iullemmeden sedimentary basin of the Sahel.

Iouri Podladtchikov

Iouri Podladtchikov (I-Pod, Юрий Подладчиков), Russian-born Swiss halfpipe snowboarder born 1988, won Sochi 2014 Olympic gold with 94.75 using his invented YOLO flip, ending Shaun White's reign.

Iovalia

Iovalia (Iovallio, Ἰούολλον) was a Roman mutatio (road station) at modern Valpovo, Croatia, on the Mursa–Poetovium road, recorded in the Tabula Peutingeriana, the 333 Bordeaux Itinerary, and Ptolemy; Barrington Atlas 20 F4, Pleiades 197325.

Ioversol

Ioversol, marketed as Optiray, is a nonionic, low-osmolar iodinated X-ray contrast agent approved in 1988 for angiography, CT of the head and body, venography, and urography.

Iovia

Iovia: Roman town and 4th-century fortress in Pannonia inferior at Alsóhetény, Hungary, on the Sopianae–Brigetio road; Celtic name, founded 2nd century, abandoned about 430. Distinct from Iovia/Botivo in Croatia.

Iovis

Iovis, Latin genitive of Jupiter, names several ancient places: a Roman fort at Abu Qurayyah in Egypt's Eastern Desert, Iovis Lareni near Sulmo, Iovis Pagus, and Templum Iovis in Thrace.

Iovis Tifatinus

Iovis Tifatinus, Jupiter Tifatinus, epithet of Jupiter worshipped on Monte Tifata near ancient Capua, attested only on the Tabula Peutingeriana; temple excavated 1995-96 at San Prisco, with bronze votive tablets from the late Republic onward.

Iovisura

Iovisura was a minor Roman road station, Barrington Atlas 12 F4, Pleiades place 118762, tentatively identified with Ohu, linked by a conjectured Antonine Itinerary secondary road to Mangolding.

Iowa

Iowa is a Midwestern U.S. state, the 29th admitted (1846), named for the Ioway people. Glaciation created fertile plains; wind is its largest electricity source; farming drives water pollution challenges.

Iowa (album)

Iowa is Slipknot's second album, released August 28, 2001 on Roadrunner Records. Produced by Ross Robinson with the band, it topped the UK chart with ~52,000 first-week sales, hit No. 3 on the Billboard 200, and was RIAA-certified platinum.

Iowa Army Ammunition Plant

The Iowa Army Ammunition Plant is a U.S. Army munitions facility near Middletown, Iowa, established in 1940 and the only American site for high-volume 155 mm shell production.

Iowa Barnstormers

Iowa Barnstormers, Des Moines indoor football team in the Indoor Football League at Casey's Center; original 1995 AFL club with Kurt Warner reached ArenaBowls X and XI, won 2018 United Bowl.

Iowa caucuses

The Iowa caucuses are party-run precinct meetings that long served as the first US presidential nominating contest, beginning with the Democrats' January 1972 calendar move; the DNC removed their early status for 2024 and 2028 while Iowa Republicans remain first.

Iowa City, Iowa

Iowa City, the Johnson County seat in Iowa, was the second and last territorial capital and first state capital until 1857, and is home to the University of Iowa.