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All articles starting with J

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Jutta Behrendt

Jutta Behrendt (nee Hampe), East German rower born 1960 in Berlin, 1988 Olympic single sculls champion and five-time world champion (1x 1983, 1986; 4x 1985, 1987, 1989) with SC Dynamo Berlin.

Jutta Langenau

Jutta Langenau (1933-1982), East German swimmer from Erfurt, won the 1954 European 100 m butterfly title in a world record 1:16.6, finished sixth at the 1956 Melbourne Olympics, and later coached Roland Matthes.

Jutta Lau

Jutta Lau, born 1955, is a German rower and coach who won Olympic gold in the coxed quadruple sculls at the 1976 and 1980 Games, then led German women's sculling.

Jutta Leerdam

Jutta Leerdam, Dutch long-track speed skater (born 1998, 's-Gravenzande), Olympic 1000m champion in record 1:12.31 and 500m silver at Milano Cortina 2026, Beijing 2022 1000m silver, three-time world 1000m champion, engaged to Jake Paul.

Jutta Ploch

Jutta Ploch (Jutta Schenk), born 1960 in Weißenfels, East German rower; Olympic gold in women's coxed quadruple sculls at Moscow 1980 (3:15.32), world champion double sculls 1983.

Jüttner distribution

The Jüttner distribution, also called the Maxwell–Jüttner or relativistic Maxwellian, is the equilibrium distribution of a relativistic gas, derived by Ferencz Jüttner in 1911 as the relativistic generalization of the Maxwell–Boltzmann distribution.

Juturna Fluctus

Juturna Fluctus is a 900-km-wide lava flow terrain (fluctus) on Venus at 76S, 350E, IAU-named 1997 after a Roman nymph, associated with Quetzalpetlatl Corona and Boala corona.

Juufuutei Raden (儒烏風亭らでん)

Juufuutei Raden (儒烏風亭らでん) is a hololive DEV_IS ReGLOSS VTuber who debuted 10 September 2023; a museum-curator-qualified rakugo-apprentice persona known for museum audio-guide collaborations, the viral Maiitake Dance, and Forbes JAPAN 30 UNDER 30 2026 selection.

Juul

Juul, made by Juul Labs, is a closed-system electronic cigarette launched in 2015 that dominated US e-cigarette sales before a youth vaping controversy brought lawsuits and FDA review.

Juuso Hietanen

Juuso Hietanen, Finnish ice hockey defenseman born 1985 in Hämeenlinna; HPK product, 10 KHL seasons, 2022 Olympic gold and 2022 World Championship with Finland, retired October 2025.

Juvayni family

The Juvayni family (خاندان جوینی) was a Persian family of bureaucrats from Jovayn in Khorasan who held high office under the Saljuqs, Khwarazmshahs, and Il-khans.

Juvenal

Juvenal (Decimus Iunius Iuvenalis), Roman satirist of the late 1st and early 2nd century CE, wrote 16 angry, rhetorical satires in five books attacking Roman society; known from Martial's epigrams, source of "bread and circuses".

Juvénal Habyarimana

Juvénal Habyarimana, Rwandan Hutu military ruler and MRND single-party president 1973–1994; seized power in the July 1973 coup, signed the 1993 Arusha Accords, and died 6 April 1994 when his plane was shot down over Kigali, igniting the Rwandan genocide.

Juvenal of Jerusalem

Juvenal of Jerusalem (Ἰουβενάλιος), bishop from about 422 until his death in 458, raised Jerusalem from a suffragan see to the fifth patriarchate at Chalcedon in 451.

Juvenescence Ltd

Juvenescence Limited is a clinical-stage biopharmaceutical company on the Isle of Man, founded by Jim Mellon, Greg Bailey, and Declan Doogan, developing therapies for aging and age-related diseases.

Juvenile (rapper)

Juvenile (Terius Gray, born 1975) is a New Orleans rapper central to Cash Money Records and bounce music, leader of the Hot Boys; his 1998 album 400 Degreez, with "Ha" and "Back That Azz Up," went 4x platinum.

Juvenile absence epilepsy

Juvenile absence epilepsy (JAE), an idiopathic generalized epilepsy syndrome with adolescent onset of sporadic typical absence seizures, 3–5.5 Hz generalized spike-wave EEG, and generalized tonic-clonic seizures in over 90% of cases.

Juvenile amyotrophic lateral sclerosis

Juvenile amyotrophic lateral sclerosis (JALS, juvenile Charcot disease) is a rare motor neuron disease beginning before age 25, under 1 in 1,000,000 prevalence, mostly familial, linked to FUS, ALS2, SETX, SPG11, and SIGMAR1 genes.

Juvenile court

Juvenile court, a separate court system for minors accused of delinquency, founded in Chicago in 1899, emphasizes rehabilitation over punishment, uses adjudication rather than guilty verdicts, and differs procedurally from adult criminal court.

Juvenile delinquency

Juvenile delinquency, also called youth crime or juvenile offending, is behavior by a minor that would be a crime if committed by an adult, plus age-only status offenses like truancy.

Juvenile glaucoma

Juvenile glaucoma, also called juvenile open-angle glaucoma (JOAG), is a rare form of primary open-angle glaucoma diagnosed between ages 3 and 40, with very high eye pressure.

Juvenile hemochromatosis

Juvenile hemochromatosis (type 2 hereditary hemochromatosis, HJV/HAMP-related) is a rare autosomal recessive iron-overload disease of children and young adults, causing hepcidin deficiency, rapid iron loading, cardiomyopathy, hypogonadism, and diabetes, treated with phlebotomy or chelation.

Juvenile hormone

Juvenile hormone (JH), a sesquiterpenoid from the corpora allata, preserves juvenile status during insect molts by modulating ecdysone; its receptor is Methoprene-tolerant (Met), and JH analogs like methoprene serve as insect growth regulator insecticides.

Juvenile Huntington disease

Juvenile Huntington disease (JHD), also called juvenile Huntington chorea, is the early-onset form of Huntington disease with symptoms before age 20, usually CAG repeats over 55 in HTT, mostly paternal inheritance, rigid-hypokinetic presentation, seizures, and faster progression than adult-onset HD.

Juvenile idiopathic arthritis

Juvenile idiopathic arthritis (JIA), formerly JRA/JCA, is chronic arthritis of unknown cause starting before age 16 lasting over 6 weeks, with seven ILAR subtypes, treated with NSAIDs, methotrexate, and biologics.

Juvenile idiopathic arthritis treatment

Treatment of juvenile idiopathic arthritis escalates from NSAIDs and weekly methotrexate to biologic drugs such as adalimumab and IL-1 or IL-6 inhibitors, aiming for remission while protecting growth.

Juvenile idiopathic polyarthritis

Juvenile idiopathic polyarthritis (ICD-11 FA24.1) is a JIA subtype with arthritis in five or more joints within six months of onset, usually symmetric and more common in girls, subdivided by rheumatoid factor status.

Juvenile Justice (Care and Protection of Children) Act, 2015

India's Juvenile Justice (Care and Protection of Children) Act, 2015 (JJ Act 2015), Act No. 2 of 2016, replaces the 2000 Act; covers children in conflict with law and in need of care; allows 16-18-year-olds trial as adults for heinous offences; amended 2021.

Juvenile Justice (소년 심판)

Juvenile Justice (소년심판, Sonyeon Simpan) is a 2022 Netflix Korean legal drama, 10 episodes, directed by Hong Jong-chan, written by Kim Min-seok, starring Kim Hye-soo as juvenile-court judge Shim Eun-seok; it topped Netflix's non-English chart and spurred debate on Korea's Juvenile Act.

Juvenile myelomonocytic leukemia

Juvenile myelomonocytic leukemia (JMML) is a rare RAS pathway-driven myeloproliferative neoplasm of early childhood, median age ~2 years, caused by PTPN11, NRAS, KRAS, NF1, or CBL mutations, diagnosed by monocytosis and GM-CSF hypersensitivity, and cured mainly by stem cell transplantation.