All articles starting with U
6,146 articles
Undifferentiated carcinoma with osteoclast-like giant cells of pancreas
Undifferentiated carcinoma with osteoclast-like giant cells of the pancreas (UC-OGC, UCOGCP, ICD-O 8035/3) is a rare ductal adenocarcinoma variant, under 1% of pancreatic malignancies, with better survival than conventional PDAC.
Undifferentiated connective tissue syndrome
Undifferentiated connective tissue syndrome (UCTD) is a systemic autoimmune condition with symptoms and autoantibodies suggesting a connective tissue disease that fail classification criteria for lupus, scleroderma, Sjögren's, or related defined diseases.
Undifferentiated embryonal sarcoma of the liver
Undifferentiated embryonal sarcoma of the liver (UESL), also called embryonal hepatic sarcoma, is a rare malignant mesenchymal childhood liver tumor, third most common after hepatoblastoma and HCC, peaking at ages 6–10, treated by resection plus chemotherapy.
Undifferentiated juvenile idiopathic arthritis
Undifferentiated juvenile idiopathic arthritis (JIA) is the ILAR classification category for childhood arthritis of unknown cause that fits no defined subtype, or fits two or more at once.
Undifferentiated pleomorphic sarcoma
Undifferentiated pleomorphic sarcoma (UPS), formerly malignant fibrous histiocytoma, is an aggressive soft tissue sarcoma, 5-10% of adult cases, typically in deep extremity tissue, treated by wide resection with radiation and, increasingly, immunotherapy.
Undine
Undine (ondine, Lithuanian undinė): a female water spirit of European folklore, named as Latin Undina by Paracelsus from unda (wave); a soulless elemental spirit who gains a soul through marriage, linked to the Slavic rusalka, Fouqué's Undine, and Andersen's Little Mermaid.
Undine (2020 film)
Undine (2020) is a German-French drama by Christian Petzold, starring Paula Beer and Franz Rogowski, reworking the Undine water-spirit myth in modern Berlin; it won the Berlin Silver Bear for Best Actress and the European Film Award.
Undine Planitia
Undine Planitia is a 2,800-km-diameter volcanic lowland plain on Venus at 13°N, 303°E, in the Guinevere Planitia (V-30) quadrangle; IAU-approved in 1997 and named for a Lithuanian water nymph or mermaid.
Undisputed (film series)
Undisputed film series: four American action films (2002-2016), starting with Walter Hill's prison boxing movie with Ving Rhames and Wesley Snipes, then direct-to-video martial arts sequels starring Scott Adkins as Yuri Boyka.
Undisputed (film)
Undisputed is a 2002 American prison boxing drama directed by Walter Hill and starring Wesley Snipes, Ving Rhames, and Peter Falk, inspired by Mike Tyson's imprisonment.
Undisputed (video game)
Undisputed is a boxing simulation video game by Steel City Interactive and Deep Silver, released 8 October 2024 on PS5, Xbox Series X|S, and PC after Steam early access from 31 January 2023, with over 100 licensed boxers including Muhammad Ali and Canelo Alvarez.
Undisputed Attitude
Undisputed Attitude, Slayer's seventh studio album (May 28, 1996, American Recordings), is a 14-track, 33-minute set of punk and hardcore covers plus one original, "Gemini".
Undisputed championship (boxing)
Undisputed championship (boxing): a fighter holding all four major belts, WBA, WBC, IBF, and WBO, in one weight class simultaneously; rare because mandatory defenses and stripping rules end reigns, as with Usyk and Crawford.
Undisputed II: Last Man Standing
Undisputed II: Last Man Standing (2006), also called Undisputed 2, is Isaac Florentine's direct-to-video martial arts prison sequel starring Michael Jai White as framed boxer George Chambers and Scott Adkins as Yuri Boyka, choreographed by J.J. Perry.
Undisputed III: Redemption
Undisputed III: Redemption (2010) is Isaac Florentine's direct-to-video martial arts film, the third Undisputed movie, starring Scott Adkins as Yuri Boyka in an inter-prison fight tournament; it won ActionFest awards for Best Director and Best Fight Choreography.
UNDOF Zone
UNDOF Zone: the area of separation in the Golan Heights patrolled by the UN Disengagement Observer Force, created by the 1974 Israel-Syria Disengagement Agreement and Security Council resolution 350, over 75 km long.
Undone (TV series)
Undone is an Amazon Prime Video adult animated comedy-drama (2019-2022) by BoJack Horseman creators Raphael Bob-Waksberg and Kate Purdy, starring Rosa Salazar as Alma, rotoscoped entirely, two seasons of eight episodes.
Undrained shear strength
Undrained shear strength (su) is the shear strength of saturated clay or silt when sheared with no drainage of pore water, used for short-term loading.
Undressed
Undressed (MTV, 1999–2002) was a 222-episode, six-season scripted anthology created by Roland Joffé about teen and young-adult relationships, a GLAAD Award winner known for early LGBT representation and alumni like Adam Brody and Pedro Pascal.
Undressed (Sombr song)
Undressed is a 2025 single by American singer-songwriter sombr (Shane Michael Boose), released March 21, 2025 via Warner Records, written solo and co-produced with Tony Berg. It peaked at UK No. 4 and Billboard Hot 100 No. 16 and appears on I Barely Know Her.
Undue influence
Undue influence is a legal doctrine that lets a court set aside a contract, gift, or will when excessive persuasion overcame a person's free will.
Undulator radiation
Undulator radiation is the electromagnetic radiation emitted when relativistic electrons follow a gentle sinusoidal path through a periodic array of alternating magnets; constructive interference concentrates it into a narrow, bright cone.
Undyne
Undyne (アンダイン, Andain), also known as StrongFish91 and Undyne the Undying, is the head of the Royal Guard and third boss in Toby Fox's Undertale, a blue-scaled fish monster fought in Waterfall, unspareable except by fleeing, transformed into a 23000 HP Genocide-route boss.
UNECE Regulation No. 155
UNECE Regulation No. 155 is a United Nations vehicle regulation on cybersecurity, adopted in 2020, requiring manufacturers to run a certified Cyber Security Management System for type approval.
UNECE Regulation No. 156
UNECE Regulation No. 156, also known as UN Regulation No. 156, is a United Nations vehicle regulation on software updates, adopted in June 2020 and in force since January 2021.
UNECE Regulation No. 157
UNECE Regulation No. 157, also called UN R157, is a United Nations regulation for the type approval of vehicles with Automated Lane Keeping Systems, adopted in June 2020 and in force since January 2021.
UNECE Regulation No. 171
UNECE Regulation No. 171, also called UN Regulation No. 171, is a UN vehicle regulation for Driver Control Assistance Systems (DCAS), adopted in Geneva in March 2024 and applied by 60 contracting parties.
UNECE Vehicle Regulations
UNECE Vehicle Regulations are United Nations technical regulations for wheeled vehicles, developed by WP.29 in Geneva and applied through type approval with mutual recognition among contracting parties.
UNECE World Forum for Harmonization of Vehicle Regulations
The UNECE World Forum for Harmonization of Vehicle Regulations (WP.29) is a United Nations forum where governments agree common technical regulations for wheeled vehicles, created in 1952.
Unecritinib fumarate (TQ-B3101)
Unecritinib fumarate (TQ-B3101, Anboni, 富马酸安奈克替尼) is an oral ALK/ROS1/c-Met inhibitor approved in China April 2024 for ROS1-positive advanced NSCLC; phase II ORR 80.2%, median PFS 16.5 months.