All articles starting with U
6,146 articles
Uterine Contraction
Uterine contraction (myometrial contraction), shortening of uterine smooth muscle driven by calcium, MLCK, oxytocin, and prostaglandins; powers labor, and is monitored by tocodynamometry, intrauterine pressure catheter, and electrohysterography.
Uterine fibroid
Uterine fibroid (uterine leiomyoma): benign smooth muscle tumor of the uterus, the most common benign tumor in women of childbearing age; half of women have fibroids by 50, with types submucosal, intramural, subserosal, pedunculated.
Uterine fibroids and pregnancy
Uterine fibroids and pregnancy covers how benign smooth-muscle tumors of the uterus affect fertility, miscarriage, cesarean delivery, and postpartum hemorrhage, and how they are managed during pregnancy.
Uterine hypoplasia
Uterine hypoplasia (infantile uterus, congenital small uterus; ORPHA180139, ICD-10 Q51.8) is a rare congenital underdevelopment of the uterus, simple, elongated, or malformative, causing primary amenorrhea, abdominal pain, and infertility.
Uterine Monitoring
Uterine monitoring is the measurement or recording of uterine contraction activity, used to track labor progress, guide oxytocin dosing, and assess how the fetus tolerates contractions.
Uterine myomectomy
Uterine myomectomy, also called fibroid removal surgery, surgically removes uterine leiomyomas while preserving the uterus. Approaches include open, laparoscopic, robotic, and hysteroscopic; it preserves fertility but carries recurrence up to 60% at five years.
Uterine prolapse
Uterine prolapse, descent of the uterus toward or past the vaginal opening, a form of pelvic organ prolapse. Documented since the Kahun papyrus (ca. 1835 BCE); treated with pessaries or surgery, including hysterectomy or uterus-preserving repair.
Uterine transplantation
Uterine transplantation, also called uterus transplantation or UTx, implants a donor uterus into a woman with absolute uterine factor infertility so she can carry a pregnancy.
Uteroglobin
SCGB1A1 (secretoglobin family 1A member 1; CC16, CC10, CCSP, uteroglobin) encodes a 16 kDa anti-inflammatory homodimeric protein secreted by airway club cells; low serum levels mark COPD and lung-function decline, high levels mark fibrosis.
Uterovaginal prolapse
Uterovaginal prolapse (ICD-11 GC40.3, ICD-10 N81.3) is descent of the uterus, cervix, and upper vagina, a central-compartment pelvic organ prolapse managed with pessaries or hysterectomy, hysteropexy, or mesh sacro-hysteropexy.
Uterus
Uterus (womb): hollow pear-shaped pelvic organ where a fertilized egg implants and a fetus grows; sheds its endometrium in menstruation. Distinguished from uterus transplantation, a temporary solid-organ transplant treating absolute uterine-factor infertility, first birth Sweden 2014, first U.S. birth 2017.
Uterus didelphys
Didelphys uterus (uterus didelphys, double uterus) is a congenital Müllerian fusion defect with two separate uterine cavities, usually two cervices and a longitudinal vaginal septum; about 5% of uterine anomalies, associated with renal agenesis, preterm birth and caesarean delivery.
Uterus transplantation
Uterus transplantation is a surgical procedure that transfers a donor uterus into a woman with absolute uterine factor infertility; the first live birth was in 2014.
UTF-16
UTF-16 (16-bit Unicode Transformation Format) is a variable-width character encoding that represents most Unicode characters with one 16-bit code unit and the rest with surrogate pairs.
UTF-8
UTF-8, or UCS Transformation Format, 8-bit, is a variable-length character encoding for Unicode that represents each character as one to four bytes, used on 99.1% of websites.
Utgard
Utgard is a 610-km large ringed feature, a probable multi-ring impact basin, on Jupiter's moon Callisto, centered at 45.0°N, 134.0°W; IAU-named in 2000 and superposed on the northern side of the Asgard basin.
Uthama Puthiran (உத்தம புத்திரன்)
Uthama Puthiran (உத்தம புத்திரன்), also transliterated Uthama Puthran, is a 1958 Tamil historical action film directed by T. Prakash Rao, a remake of the 1940 film, starring Sivaji Ganesan in his first dual role; it ran over 100 days and made him a bankable star.
Uthamaputhiran (2010 film)
Uthamaputhiran (உத்தமபுத்திரன்), 2010 Tamil romantic comedy directed by Mithran Jawahar, starring Dhanush and Genelia D'Souza; a remake of the Telugu hit Ready, released 5 November 2010 with music by Vijay Antony.
Uther Pendragon
Uther Pendragon is the legendary father of King Arthur, portrayed in Geoffrey of Monmouth's Historia Regum Britanniae (by 1138) as brother of Aurelius Ambrosius; his name comes from a dragon-shaped comet, and he fathers Arthur on Igraine via Merlin's disguise magic at Tintagel.
Uthi
Uthi is a two-row mancala board game played by the Embu people of Kenya, where players sow seeds into pits and compete to capture the most.
Uthiri Pookkal (உதிரிப்பூக்கள்)
Uthiri Pookkal (உதிரிப்பூக்கள்), also Uthiripookkal, is a 1979 Tamil drama directed by J. Mahendran, adapted from Pudumaipithan's story Chitrannai, starring Vijayan and Ashwini, with Ilaiyaraaja's music; a 175-day critical and commercial hit.
Uthman
Uthman ibn Affan (ʿUthmān ibn ʿAffān, Dhu al-Nurayn), third Rashidun caliph 644–656, elected by Umar's six-man council; standardized the Qur'an, built the first Muslim navy, and was assassinated in 656, sparking the First Fitna.
Uthman Bey al-Bardisi
Uthman Bey al-Bardisi (عثمان بك البرديسي) was a Mamluk emir of Egypt, a former retainer of Murad Bey who led the Mamluks after 1801 and died in 1806.
Uthman Dey
Uthman Dey (عثمان داي), also called Kara Osman Dey, ruled Ottoman Tunis as dey from 1598 to 1610, the first to hold effective power over the regency.
Uthman ibn Abd Allah ibn Bishr
Uthman ibn Abd Allah ibn Bishr (عثمان بن عبد الله بن بشر) was a nineteenth-century Najdi historian, author of the chronicle Unwan al-Majd fi Tarikh Najd.
Uthman ibn al-Haytham
Uthman ibn al-Haytham, known as al-Ashj, was a Basran hadith transmitter born in the 120s AH, remembered as muezzin of the Basra mosque and as one of al-Bukhari's senior shaykhs.
Uthman ibn Talha
Uthman ibn Talha (عثمان بن طلحة) was a companion of Muhammad from Quraysh who kept the Kaaba's key, returned to his family at the conquest of Mecca in 630.
Uthman Katkhuda
Uthman Katkhuda (عثمان كتخدا) was a Mamluk emir of the Qazdughli household in Ottoman Egypt, known for building a mosque complex in Cairo's Azbakiyya district.
Uthmanic codex
The Uthmanic codex, also known as the Mushaf of Uthman, is the master copy of the Quran that Caliph Uthman had transcribed and sent to garrison towns around 645 CE.
Uthong dynasty
The Uthong dynasty (ราชวงศ์อู่ทอง) was the founding royal house of the Ayutthaya kingdom, established by King Uthong, who reigned as Ramathibodi I, when he made Ayutthaya the capital in 1351.