All articles starting with O
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Ovsynch
Ovsynch is a hormonal synchronization program for dairy cattle using two GnRH injections and one prostaglandin F2α injection, allowing timed artificial insemination without estrus detection.
Ovulation
Ovulation, release of an egg from the dominant ovarian follicle after the LH surge, around day 12-14 of a 28-day cycle; detected by urinary LH kits (97% accuracy), midluteal progesterone, or ultrasound; BBT charting is inaccurate.
Ovulation bleeding
Ovulation bleeding (排卵期出血, ICD-11 GA20.2, ICD-10 N92.3) is light, recurrent mid-cycle uterine bleeding around ovulation, caused by the post-ovulation estrogen drop; distinct from anovulatory bleeding.
Ovulation Detection
Ovulation detection determines whether and when ovulation occurs, via urine LH kits, ultrasound, serum progesterone, basal body temperature, cervical mucus, and apps or wearables; distinct from ovulation prediction and calendar rhythm methods.
Ovulation induction
Ovulation induction is the use of medications, chiefly clomiphene citrate, letrozole, or gonadotropins, to restore ovulation in women with anovulatory infertility, aiming to release one mature egg per cycle.
Ovulation Inhibition
Ovulation inhibition, also called ovulation suppression, is the blocking of egg release from the ovary by neuroendocrine, psychological, or pharmacological agents; it is the main mechanism of hormonal contraceptives, first marketed as Enovid in 1960.
Ovulation Prediction
Ovulation prediction: estimating the timing of egg release using urine LH tests, basal body temperature, cervical mucus, ultrasound, and wearable sensors to identify the roughly 6-day fertile window for conception or contraception.
Ovulation test
An ovulation test is a urine-based diagnostic test that detects the luteinizing hormone surge predicting ovulation within 24 to 36 hours, used for fertility timing since the mid-1970s.
OVULATION trial
OVULATION (NCT05695352), also called the IG-002 trial, is InnovaGyn's Phase II study testing oral levonorgestrel 1.5 mg plus meloxicam 15 mg against placebo for delaying ovulation by at least 7 days in normal menstruating women aged 18 to 40.
Ovule
An ovule is the structure in seed plants that contains the female gametophyte and, after fertilization, develops into a seed, tracing back almost 400 million years.
Ovum Recordings
Ovum Recordings is an independent techno and house record label founded in 1994 by Josh Wink in Philadelphia, which has released more than 400 records by over 130 artists.
Ovy on the Drums
Ovy on the Drums (Daniel Echavarría Oviedo, born 1991, Medellín) is a Colombian reggaetón producer, songwriter, and solo artist; Karol G's longtime producer behind "Tusa" and Mañana Será Bonito, winner of a Latin Grammy and a Grammy.
Owain Doull
Owain Doull, Welsh cyclist born 1993 in Cardiff, Olympic team pursuit gold medalist at Rio 2016; rode for Team Sky, Ineos Grenadiers, EF Education-EasyPost, and from 2026 Visma-Lease a Bike.
Owain Glyndŵr
Owain Glyndŵr (Owen Glendower), c. 1354–1416, Welsh landowner of Powys and Deheubarth descent, last native Prince of Wales, proclaimed 16 September 1400 at Glyndyfrdwy, led the last major Welsh revolt against English rule, held parliaments at Machynlleth and Harlech, allied with France, and vanished without a recorded grave.
Owain Rhys Davies
Owain Rhys Davies (1982–2026), Welsh actor from Cardiff, played FBI Agent Wilson in Twin Peaks: The Return; also The OA, Alice Through the Looking Glass, West End musicals, and Audible's Impact Winter; died suddenly at 44.
Owain Wyn Evans
Owain Wyn Evans (born 1984, Ammanford, Wales) is a Welsh broadcaster and drummer, host of BBC Radio 2's Early Breakfast Show and former BBC weather presenter, known for his viral 2020 BBC News theme drumming video and 24-hour Drumathon raising over £3.8m for Children in Need.
Owain Yeoman
Owain Sebastian Yeoman (born 1978, Chepstow, Wales) is a Welsh actor, RADA-trained and Oxford-educated, known for Wayne Rigsby on The Mentalist (2008–2015, 132 episodes), Benedict Arnold in TURN: Washington's Spies, and films Troy and American Sniper.
Owais Raza Qadri
Owais Raza Qadri, titled Bulbul-e-Madinah, is a Pakistani naat khwan, a reciter of devotional poetry in praise of the Prophet Muhammad, born in 1969 in Pakistan.
Owais Yaqoob
Owais Yaqoob, Indian lightweight MMA fighter from Pulwama, Kashmir; 6-1 pro record with a six-fight win streak in BRAVE CF, Naiza FC, and MFN; praised by Khabib Nurmagomedov.
Owala (brand)
Owala is an American drinkware brand launched by Trove Brands in March 2020, best known for its FreeSip insulated water bottle, whose patented spout works as both a straw and a wide-mouth sip.
Owana
Owana is a modern two-player mancala sowing game played on a 2x4 pit board with two outer stores, four seeds per pit, chained sowing with captures, and a win by emptying the opponent's row; distinct from the Gabonese game Owani.
Oware
Oware (Awalé, Ayo, Warri) is a West African two-player mancala game, the national game of Ghana, played on a 2x6 board with 48 seeds; captures of 2 or 3 seeds, grand-slam forfeit, solved as a draw in 2002.
Owari domain
Owari domain (尾張藩), also called Nagoya domain, was a daimyo domain of Edo Japan ruled from Nagoya Castle by the Owari Tokugawa house from 1607 to 1871.
OWASP
OWASP (Open Worldwide Application Security Project) is a 501(c)(3) nonprofit founded 2001, incorporated 2004, known for the OWASP Top 10 web security risk list, ASVS, 250+ chapters, and 275+ open-source security projects.
OWASP ZAP
OWASP ZAP (Zed Attack Proxy) is a free, open-source penetration testing tool for finding vulnerabilities in web applications, created by Simon Bennetts and released in 2010.
OWBLM trial
OWBLM (NCT04425681) is a phase II single-arm trial of osimertinib 80 mg daily plus bevacizumab 7.5 mg/kg for leptomeningeal metastasis from EGFR-mutant NSCLC; 14 patients, median LM PFS 9.3 months, ORR 50%, LM OS 12.6 months.
Owe Orwar
Owe Orwar (born 1964) is a molecular biophysicist at Chalmers University of Technology in Gothenburg, known for lipid nanotube-vesicle networks, artificial cells, and single-cell patch-clamp analysis.
Owen (Martian crater)
Owen is a 79.33-km-diameter impact crater on Mars at 13.48 degrees south, 83.84 degrees east in quadrangle MC-21, adopted by the IAU on June 3, 2020, and named for American planetary scientist Tobias Owen (1936-2017).
Owen Benjamin
Owen Benjamin (Owen Benjamin Smith, born 1980), American comedian, actor, and pianist from Oswego, New York; starred on Sullivan & Son and in The House Bunny, then turned to far-right antisemitic livestreaming on Unauthorized.tv from Idaho after 2017.
Owen Brian Toon
Owen Brian Toon is an American atmospheric scientist at the University of Colorado Boulder known for nuclear winter research and work on clouds, aerosols, and ozone.