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District magistrate
District Magistrate (DM), also called District Collector or Deputy Commissioner, is India's senior district executive officer. Created as the Collector in 1772, unified with the magistracy in 1859, it handles law and order, revenue, elections, licensing, and preventive detention.
District magnitude
District magnitude is the number of representatives elected from a single electoral district, the key determinant of proportionality in PR systems, ranging from 1 to over 100.
District Municipality of Muskoka
The District Municipality of Muskoka is Ontario's upper-tier district government, incorporated January 1, 1971, governing six area municipalities through a 23-member council and delivering regional water, sewage, waste, and ambulance services.
District of Columbia Organic Act of 1871
The District of Columbia Organic Act of 1871 (16 Stat. 419, Feb. 21, 1871) consolidated Washington, Georgetown, and Washington County under one territorial government with a Legislative Assembly, abolished in 1874; it did not make the United States a corporation.
District of Columbia Public Charter School Board
DC Public Charter School Board (DC PCSB), independent DC government agency created 1996 under the School Reform Act; sole authorizer of DC public charter schools since 2006, overseeing 133 schools run by 66 nonprofit LEAs via a seven-member mayoral-appointed board.
District of Columbia retrocession
District of Columbia retrocession: returning federal District land to a state. Virginia's 1846 retrocession of Alexandria County, modern Maryland retrocession proposals, and the 2026 Make DC Square Again Act reversing it.
District of Columbia v. Heller
District of Columbia v. Heller is a 2008 Supreme Court ruling, decided 5-4, that the Second Amendment protects an individual right to keep a handgun at home for self-defense.
District Pratapgarh
District Pratapgarh (जिला प्रतापगढ़) is a district in central Uttar Pradesh, India, established in 1858 and named after Raja Pratap Singh, with headquarters at Bela Pratapgarh.
District Raebareli
District Raebareli (रायबरेली), Uttar Pradesh, India: district created by the British in 1858, named after its headquarters town on the Sai River. Area 4,043 sq km, 2011 population 2,903,507, 6 tehsils, Ganga and Sai rivers, Rail Coach Factory Lalganj and NTPC Unchahar.
District Routine
District Routine (Rayonnye budni) is a cycle of five linked essays by the Soviet writer Valentin Ovechkin, published in Novy Mir from 1952 to 1956.
District Saharanpur
District Saharanpur (जिला सहारनपुर), Uttar Pradesh district headquartered at Saharanpur city; 3,689 sq km, 3,467,332 people (2011), Shivalik foothills location, wood-carving industry, division headquarters since 1997.
District Six
District Six (Kanaldorp) was a mixed-race Cape Town ward, declared whites-only in 1966 under the Group Areas Act; over 60,000 residents were forcibly removed to the Cape Flats and the area bulldozed, now commemorated by the District Six Museum.
District Sultanpur
District Sultanpur, Uttar Pradesh (सुलतानपुर ज़िला), an Awadh district headquartered at Sultanpur city on the Gomti river; after the 2010 bifurcation creating Amethi it has five tehsils, 2,672.89 sq km, and a 2011 population of 24,31,491.
District Unnao
District Unnao (उन्नाव ज़िला) is a Uttar Pradesh district between the Ganga and Sai rivers, with a 2011 population of 3,108,367 and an area of 4,558 sq km.
Districts in California
Districts in California covers the state's congressional (52), State Senate (40), Assembly (80), and Board of Equalization (4) districts, the 14-member Citizens Redistricting Commission, Proposition 50's temporary 2026–2030 congressional maps, and local school, county, city, and special districts.
Districts of Bangladesh
Districts of Bangladesh (জেলা, zila): the 64 principal administrative subdivisions of Bangladesh, grouped into 8 divisions and subdivided into 492 upazilas, each headed by a Deputy Commissioner under the Districts Act, 1836.
Districts of Bhutan
Districts of Bhutan (dzongkhags): 20 first-level administrative units, with 15 dungkhag subdistricts and 205 gewogs, each governed by an elected Dzongkhag Tshogdu and an administration headed by a dzongdag.
Districts of England
Districts of England are lower-tier local government areas in two-tier counties, created by the Local Government Act 1972 and providing services such as refuse collection, housing, and planning.
Districts of Germany
Districts of Germany (Regierungsbezirke, Kreise): intermediate state districts in four Länder (19 total) and 401 self-governing rural districts and district-free cities, with historical roots in the Prussian administration of the German Empire.
Districts of Hong Kong
Districts of Hong Kong: the 18 District Council districts (4 Hong Kong Island, 5 Kowloon, 9 New Territories) under Cap. 547, with 2021 census populations, District Officer-led administration, and the 2023 council reform.
Districts of Israel
Districts of Israel (מחוזות): the country's 6 first-level administrative divisions, subdivided into 15 sub-districts, established in their official form in 1953 and used by the CBS as the standard statistical framework.
Districts of Pakistan
Districts of Pakistan (اضلاع پاكستان) are the third-tier administrative units below provinces and divisions, each headed by a Deputy Commissioner; about 129-133 districts across four provinces, ICT, AJK, and Gilgit-Baltistan, forming the frame for the 2023 census.
Districts of Sri Lanka
Districts of Sri Lanka: the 25 second-level administrative units within 9 provinces, headed by District Secretaries/Government Agents, subdivided into 340 Divisional Secretariat Divisions, with history from 1833 and 2024 census population figures.
Distrito Central
Distrito Central is the Honduran municipality formed in 1937 by merging Tegucigalpa and Comayagüela; it is the national capital, in Francisco Morazán department, covering 1,514.72 km² with about 1.2 million people.
Distrito de Arraiján
Distrito de Arraiján, district in Panamá Oeste province, Panama, created 12 September 1855; about 299,079 inhabitants (2023 census) in nine corregimientos; a bedroom community of Panama City near the Bridge of the Americas.
Distrito de Panamá
Distrito de Panamá (Panamá District) is Panama's second-level district containing Panama City, governed by the Municipality of Panama with 23 corregimientos and about 1.18 million residents.
Distrito Federal
Distrito Federal, Venezuela's federal district holding the capital Caracas from 1864 to 1999; created under Falcón after the Federal War, divided into Libertador and Vargas municipalities, replaced by the Distrito Capital.
Distrito Nacional
Distrito Nacional (DN), special subdivision of the Dominican Republic enclosing the capital Santo Domingo; not in any province, acts as a province; reduced to the capital city by Law 163-01 of 2001; highest human development in the country.
DISTROKE trial
DISTROKE (NCT03626558), Diaphragmatic Function Description in Stroke Patients, was a withdrawn French preliminary ultrasound study of post-stroke diaphragm function; no participants were enrolled and no results were posted.
Disturbance and recovery of hydrothermal vent microbial communities
Disturbance and recovery of hydrothermal vent microbial communities: how chemoautotrophic bacteria and archaea at deep-sea hydrothermal vents respond to eruptions, shift from fluid-shaped to mineral-shaped communities, and recolonize, with recovery often taking over a decade.