All articles starting with O
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Ossip Lourié
Ossip Lourié (О́сип Лурье) was a Franco-Russian philosopher and man of letters, professor at the Université nouvelle de Bruxelles, known for studies of Tolstoy and Russian philosophy.
Osso VR
Osso VR is a virtual reality surgical training platform founded in San Francisco in 2016 by surgeon Justin Barad, used by hospitals and medical device companies.
Ossobuco
Ossobuco (os büs, "bone with a hole") is a Milanese braised veal shank dish with marrow, made in bianco without tomato or modern with tomato, finished with gremolata and paired with risotto alla milanese.
Ossolineum
Ossolineum, formally the Zakład Narodowy im. Ossolińskich, is a Polish cultural foundation in Wrocław operating a research library, a museum, and one of Poland's oldest publishing houses.
Ossuary
Ossuary: a chest, room, or structure holding disarticulated human bones from secondary burial. Forms range from Chalcolithic and Judean limestone bone boxes to medieval charnel chapels and the Paris Catacombs, which hold about six million Parisians' remains.
Ossur
Össur is an Icelandic medical technology company founded in 1971 by amputee prosthetist Össur Kristinsson that develops prosthetic limbs, including bionic knees and hands, and orthopedic braces.
Össur Power Knee
The Össur Power Knee is a motor-powered, microprocessor-controlled prosthetic knee for above-knee amputees, made by Össur and first released in 2006 as the first powered knee.
OST
OST is a South Korean music category for drama soundtrack songs, classified as its own genre since 2008, with weekly part releases and chart peaks like Goblin in 2017.
OST trial
OST trial (NCT05042622), a Kazakh device study of cytokine adsorbers and hemoperfusion cartridges added to ECMO and septic shock care; 90 patients, one site, no posted results.
Ostankino Television Company
Ostankino Television Company (RGTRK Ostankino) was the Russian state broadcaster, successor to Soviet Gosteleradio, existing 27 December 1991 to 12 October 1995; it ran Channel One with Orbita dubs and was liquidated and succeeded by ORT, now Channel One.
Ostankino Tower
Ostankino Tower (Останкинская телебашня), Moscow's 540 m TV and radio tower by engineer Nikolai Nikitin, opened 5 November 1967; tallest freestanding structure in Europe, world record holder 1967-1976, damaged by the 2000 fire.
Ostap Stepanovich Parasyuk
Ostap Stepanovich Parasyuk (Остап Степанович Парасюк; 1921–2007) was a Ukrainian mathematician and theoretical physicist, co-author of the Bogoliubov–Parasyuk theorem subtracting ultraviolet divergences in quantum field theory.
Ostap Vyshnia
Ostap Vyshnia, pen name of Pavlo Hubenko, was a Ukrainian satirist and humorist, 1889 to 1956, the most widely read Ukrainian prose writer of the 1920s.
Osteal Therapeutics, Inc.
Osteal Therapeutics, Inc., formerly Joint Purification Systems, is a clinical-stage pharmaceutical company in Dallas, Texas, developing VT-X7, a seven-day antibiotic therapy for infected hip and knee implants.
Ostectomy
Ostectomy is a surgical operation that removes bone tissue, used in orthopedics to eliminate diseased or painfully contacting bone, and in periodontics to excise tooth-supporting alveolar bone.
Osteichthyes
Osteichthyes, the bony fishes, is the vertebrate group with a bony endoskeleton, split into ray-finned Actinopterygii (over 28,000 species, about 44% of vertebrates) and lobe-finned Sarcopterygii, arising in the Late Silurian and including tetrapod descendants cladistically.
Östen Undén
Östen Undén (1886–1974) was a Swedish law professor and Social Democratic politician who served as foreign minister from 1945 to 1962, shaping Sweden's Cold War neutrality.
Ostend
Ostend (Oostende, Ostende), Belgium's largest coastal city in West Flanders: 73,000 residents, 7 km beach, 658 ha port, railway terminus, James Ensor's home city, and a focal point of Flemish coastal flood defense.
Ostendo Technologies
Ostendo Technologies is a display and semiconductor company founded in 2005 in Carlsbad, California, led by CEO Hussein El-Ghoroury and developing the Quantum Photonic Imager, a full-color micro-LED microdisplay for wearables and light-field displays.
Osteo-odonto-keratoprosthesis
Osteo-odonto-keratoprosthesis (OOKP, MOOKP), tooth-in-eye surgery: a two-stage operation using the patient's tooth root and alveolar bone to support a PMMA optical cylinder for end-stage corneal blindness, with 91% 18-year lamina retention in the UK cohort.
Osteoarthritis
Osteoarthritis, also called degenerative joint disease, is the most common arthritis, affecting 528 million people in 2019, mostly knees, hips, hands, and spine of people over 55; managed with exercise, weight loss, medications, and joint replacement.
Osteoarthritis in animals
Osteoarthritis in animals is a degenerative joint disease in which joint cartilage breaks down, causing chronic pain and mobility loss, most prominently in dogs, cats, and horses, with prevalence rising above 90% in aging cats.
Osteoblast
Osteoblast: bone-forming cell that secretes osteoid and mineralizes it with hydroxyapatite; fates include osteocyte, bone lining cell, or apoptosis; regulated by RUNX2, osterix, Wnt signaling, and PTH.
Osteoblastoma
Osteoblastoma is a rare, typically benign, locally aggressive bone tumor producing osteoid or mature bone, usually in the spine, causing dull pain and treated by surgical resection.
Osteocalcin
Osteocalcin (OCN, bone Gla protein) is a 49-amino acid, vitamin K-dependent protein secreted by osteoblasts; the most abundant non-collagenous bone matrix protein, used as a bone formation marker and proposed, controversially, as a glucose-regulating hormone.
Osteochondral allograft transplantation
Osteochondral allograft transplantation is a single-stage operation transferring size-matched donor hyaline cartilage with subchondral bone into damaged joint surfaces, most often the knee, for large defects.
Osteochondritis dissecans
Osteochondritis dissecans (OCD) is a joint condition in which bone beneath the cartilage loses blood supply and may crack, loosen, or detach, mainly affecting children and adolescents in the knee, ankle, or elbow.
Osteochondroma
Osteochondroma (osteocartilaginous exostosis) is the most common benign bone tumor, a cartilage-capped bony outgrowth near growth plates; solitary or multiple (hereditary multiple exostoses, EXT1/EXT2), with under 1% versus about 10% malignant transformation risk.
Osteochondrosis of the tarsal bone
Osteochondrosis of the tarsal bone, or Kohler disease, is avascular necrosis of the tarsal navicular in children, causing foot pain and limp; self-limiting, treated conservatively, excellent prognosis.
Osteoclast
Osteoclast: multinucleated monocyte-lineage cell that resorbs bone via a sealing zone, ruffled border, and acid secretion, regulated by RANKL–RANK–OPG and targeted by denosumab.