All articles starting with H
20,046 articles
Haemophilia in European royalty
Haemophilia in European royalty: the X-linked bleeding disorder spread from Queen Victoria, a carrier, through daughters Alice and Beatrice to the Russian, Spanish, and German royal houses; identified in 2009 as haemophilia B (F9 mutation).
Haemophilic arthropathy
Haemophilic arthropathy is a chronic joint disease caused by repeated joint bleeding in hemophilia, marked by synovitis and cartilage destruction, mainly in knees, ankles, and elbows.
Haemophilus
Haemophilus, genus of gram-negative, nonmotile Pasteurellaceae bacteria requiring X (heme) or V (NAD) factors; type species Haemophilus influenzae, with six capsular serotypes a-f, Hib vaccine, and 2026 genomic reclassification.
Haemophilus ducreyi
Haemophilus ducreyi, a fastidious Gram-negative coccobacillus, causes chancroid (painful genital ulcers) and, increasingly recognized, non-sexually transmitted leg ulcers in children in yaws-endemic regions.
Haemophilus influenzae
Haemophilus influenzae (Hib, NTHi) is a gram-negative coccobacillus of the human respiratory tract causing meningitis, pneumonia, and otitis media; type b disease fell over 99% after 1987 conjugate vaccines, while nontypeable disease rises.
Haemophilus parainfluenzae
Haemophilus parainfluenzae (Rivers 1922) is a fastidious Gram-negative coccobacillus, V-factor-dependent HACEK member and human oral/pharyngeal commensal carried by about 65% of people, occasionally causing endocarditis, sepsis, and meningitis.
Haemophilus parasuis
Haemophilus parasuis, now Glaesserella parasuis, is a Gram-negative NAD-dependent Pasteurellaceae bacterium of pigs; it colonizes the upper respiratory tract and causes Glasser's disease (polyserositis, arthritis, meningitis), with 15 serovars of differing virulence.
Haemorhous
Haemorhous (Swainson, 1837) is a genus of three North American finches in Fringillidae: House Finch, Purple Finch, and Cassin's Finch, formerly placed in Carpodacus and split off after molecular work showed Carpodacus was polyphyletic.
Haemorrhage from throat
Haemorrhage from throat (咽頭出血), ICD-11 code MD21, is bleeding from the throat classified under haemorrhage from respiratory passages, excluding haemoptysis (MD22); synonyms include pharyngeal and oropharyngeal haemorrhage.
Haemorrhage in early pregnancy
Haemorrhage in early pregnancy (ICD-11 JA40) is first-trimester vaginal bleeding, including threatened abortion. It affects about 25% of pregnancies; management includes progesterone for prior miscarriage and expectant care.
Haemorrhagic septicaemia
Haemorrhagic septicaemia (HS), a WOAH-listed pasteurellosis of cattle and water buffalo caused by Pasteurella multocida serotypes B:2 and E:2 (6:B, 6:E), acute and near-100% fatal, endemic in tropical Asia and Africa, peaking in monsoon season.
Haemorrhoids
Haemorrhoids (piles) are swollen, inflamed veins around the anus or lower rectum, external or internal. About 1 in 20 Americans are affected; treatment ranges from fiber and sitz baths to banding and hemorrhoidectomy.
Haemorrhoids in pregnancy
Haemorrhoids (piles) in pregnancy: swollen anal cushions causing pain, itching, and bleeding, affecting roughly 30-40% of pregnant women, mainly in the third trimester. Treated with fiber, fluids, sitz baths, and topical preparations; usually resolve postpartum.
Haemosu
Haemosu (해모수) is a heavenly being in Korean foundation mythology who descended from the sky around 59 BC to found Northern Buyeo, and whom the Samguk Sagi makes the father of Goguryeo's founder Jumong.
Haemothorax
Haemothorax (hemothorax) is blood accumulating in the pleural space, usually from chest trauma. Chest tube drainage is first-line; thresholds of 500 ml, 1,500 ml/24 h, and early VATS for retained blood guide management.
Haemulidae
Haemulidae (grunts), family Gill 1885 of tropical percomorph fishes, synonym Pomadasyidae; about 19 genera and 137 species in Atlantic, Indian, and Pacific oceans, named for pharyngeal-jaw stridulatory grunts.
Haemus Montes
Haemus Montes: tectonic mountain complex near Io's south pole, about 150 km across, rising 9-10 km above the plains; IAU-named 1979 after the Greek myth of Io's wanderings.
Haenyeo
Haenyeo (해녀, "sea women") are professional female divers of Jeju Island, South Korea, who harvest seafood by breath-hold diving without equipment; their culture joined UNESCO's Intangible Cultural Heritage list in 2016.
Haerwusu Surface Mine
The Haerwusu Surface Mine is a large open-pit coal mine in Ordos, Inner Mongolia, China, owned by China Shenhua Energy with a capacity of 35 million tonnes of coal per year.
Haeshin Lee
Haeshin Lee is a South Korean chemist and professor at KAIST known for inventing polydopamine, a mussel-inspired surface coating, and for bio-inspired adhesives and hemostatic medical devices.
Haesindang Park
Haesindang Park (해신당공원), or Penis Park, in Sinnam village, Samcheok, South Korea: a seaside park of phallic sculptures built around a shrine where juniper phalluses are offered to a drowned maiden's spirit for good catches.
Haeundae
Haeundae (해운대), released abroad as Tidal Wave, is Yoon Je-kyoon's 2009 Korean tsunami disaster film starring Sul Kyung-gu and Ha Ji-won; it sold over 11 million admissions, becoming the fifth Korean film to pass ten million.
Haewon (오해원) (singer)
Oh Hae-won (오해원), known as Haewon, is a South Korean singer born in 2003, leader and main vocalist of the JYP girl group Nmixx since its 2022 debut.
Hafada piercing
Hafada piercing, also called scrotum or scrotal piercing, is a male genital surface piercing through the skin of the scrotum. Known for scrotal ladders, disputed Arabian origin story, and healing times of roughly 2-6 months.
Hafar Al-Batin
Hafar Al-Batin (حفر الباطن), also Hafr al-Batin, is a city and category A governorate in Saudi Arabia's Eastern Province near the Kuwait and Iraq borders; 467,007 governorate residents (2022 census), hot desert climate, historic Hajj and caravan route.
Hafeez Contractor
Hafeez Contractor, full name Hafeez Sorab Contractor, is an Indian architect based in Mumbai who founded Architect Hafeez Contractor, one of India's largest firms, in 1982.
Hafeez Jalandhari
Hafeez Jalandhari (1900 to 1982) was a Pakistani Urdu-language poet who wrote the lyrics of Pakistan's national anthem and the four-volume epic Shahnama-e-Islam, earning the title Firdausi-e-Islam.
Hafele–Keating experiment
The Hafele–Keating experiment was a 1971 test of relativity in which four cesium atomic clocks were flown around the world on commercial jets, confirming predicted time dilation against ground clocks.
Hafez (خواجه شمسالدین محمد حافظ شیرازی)
Hafez (خواجه شمسالدین محمد حافظ شیرازی), Šams-al-Din Moḥammad of Shiraz (ca. 1315–1390), Persian lyric poet of the Divān's roughly 495 ghazals; known as lesān-al-ḡayb, used for fāl divination, with no definitive original text.
Hafez Awards
The Hafez Awards (جشن حافظ) are Iran's annual private-sector awards for cinema and television, presented by Picture World magazine since 1997 and described as the Iranian Golden Globe.