All articles A–Z

Aggregation-induced emission nanoparticles

Aggregation-induced emission nanoparticles are fluorescent nanoparticles built from aggregation-induced emission luminogens, molecules that glow only when aggregated, making them bright, photostable labels for bioimaging and imaging-guided therapy.

Aggreko

Aggreko is a Glasgow-based provider of temporary power generation and temperature control equipment. Founded in the Netherlands in 1962, it operates in around 75 countries.

Aggression

Aggression: behavior intended to harm another person who does not wish to be harmed. Covers violence as its extreme subset, emotional versus instrumental types, and instinct, frustration-aggression, social learning, and general aggression model theories.

Aggressive behavior

Aggressive Behavior is a bimonthly Wiley peer-reviewed journal, official journal of the International Society for Research on Aggression, founded 1974, ISSN 0096-140X/1098-2337, covering conflict behavior research in humans and animals.

Aggressive mimicry

Aggressive mimicry: predators, parasites, or humans imitate prey signals, mates, food, or threats to lure victims. Examples include anglerfish lures, bolas spider pheromones, caudal luring snakes, and web-invading Portia spiders.

Aggressive NK-cell leukemia

Aggressive NK-cell leukemia (ANKL, aggressive natural killer-cell leukemia) is a rare EBV-associated systemic malignancy of mature NK cells, mainly affecting young Asian adults, presenting with fever, hepatosplenomegaly, and coagulopathy, with a median survival of about 2 months.

Aggressive periodontitis

Aggressive periodontitis (AgP), formerly juvenile or early-onset periodontitis, is a rapidly destructive periodontitis of young, systemically healthy people; the 2017 AAP/EFP classification retired the term in favor of staged periodontitis.

Aggressive systemic mastocytosis

Aggressive systemic mastocytosis (ASM, ORPHA:98850) is a rare advanced form of systemic mastocytosis with mast cell organ infiltration and C-findings, no associated hematologic neoplasm; KIT D816V-driven, treated with avapritinib or midostaurin.

Aggressor squadron

An aggressor squadron, known as an adversary squadron in the Navy and Marine Corps, acts as the opposing force in air combat training, flying enemy tactics against friendly pilots.

Aggretsuko

Aggretsuko (Aggressive Retsuko, アグレッシブ烈子) is a Sanrio character and Netflix anime about Retsuko, a 25-year-old red panda office worker who vents workplace stress through death metal karaoke; five seasons ran 2018-2023.

Aggro Crab

Aggro Crab, also known as Aggro Crab Games LLC, is an independent video game studio in Seattle, Washington, known for Going Under, Another Crab's Treasure, and the co-op climbing hit Peak.

Aggy K. Adams

Aggy K. Adams (born 1995) is a London-trained actress known as the elf Iskra in Netflix's The Witcher and The Rats: A Witcher Tale, as Mia in The Couple Next Door season 2, and for Oh, Ramona! Not related to Amy Adams.

Agha Mohammad Khan Qajar

Agha Mohammad Khan Qajar (Āḡā Moḥammad Khan Qājār, r. 1789–97), eunuch founder of the Qajar dynasty of Iran; castrated as a child, escaped Zand captivity in 1779, unified Iran with Tehran as capital, crowned 1796, assassinated 1797.

Agha Salim

Agha Salim (آغا سليم; 1935–2016), born Agha Khalid Saleem, was a Pakistani writer of Sindhi fiction, drama, poetry, and journalism who also translated Shah Abdul Latif Bhittai into Urdu and English verse.

Agha Shahid Ali

Agha Shahid Ali (1949–2001) was a Kashmiri-American poet, author of The Country Without a Post Office, whose Rooms Are Never Finished was a 2001 National Book Award finalist.

Agha Shorish Kashmiri

Agha Shorish Kashmiri (آغا شورش کاشمیری), born Abdul Karim, was a Pakistani Urdu poet and journalist who edited the weekly Chatan until his death in 1975.

Aghajari Field

Aghajari Field, also written Agha Jari (Persian آغاجاری), is a giant onshore oil field in Khuzestan, southwestern Iran, discovered in 1936 and peaked at 1 million barrels per day in 1974.

Aghajari Oil Field

The Aghajari Oil Field, also written Agha Jari, is a giant onshore oil field in Khuzestan province, southwestern Iran, discovered in 1936 and producing from the Asmari Limestone.

Aghar Gas Field

The Aghar Gas Field is an onshore natural gas field in Fars province, southwestern Iran, discovered in 1974 and developed jointly with the adjacent Dalan field, with reserves once estimated at over 10 trillion cubic feet.

Aghathiyaa

Aghathiyaa (அகத்தியா) is a 2025 Tamil historical horror thriller written and directed by Pa. Vijay, starring Jiiva, Arjun Sarja, and Raashii Khanna, released 28 February 2025 by Vels Film International.

Aghbyur Serob

Aghbyur Serob (Աղբյուր Սերոբ), born Serob Vardanyan, was an Armenian fedayi commander who organized village self-defense in Bitlis and died besieged at Sasun in 1899.

Aghdznik (historical province)

Aghdznik (Armenian Աղձնիք; Greek Arzanene) was a province of Greater Armenia in the southwestern Armenian Highland, beyond the Tigris, identified with the Hittite kingdom of Alzi and later a Roman-Persian frontier region.

Aghlabid conquest of Malta

The Aghlabid conquest of Malta was the seizure of the Maltese islands by the Aghlabid dynasty of Ifriqiya from the Byzantine Empire in August 870, after a failed earlier attack.

Sep 23, 2026

Aghlabid conquest of Sicily

The Aghlabid conquest of Sicily (فتح صقلية) was the Aghlabid campaign that took Byzantine Sicily, beginning at Mazara in 827 and ending with the fall of Taormina in 902.

Aghlabid dynasty

Aghlabid dynasty (الأغالبة): hereditary emirate ruling Ifriqiya (Tunisia) 800–909 under nominal Abbasid authority from Qayrawan; founded by Ibrahim ibn al-Aghlab for 40,000 dinars yearly tribute; conquered Sicily in 827; fell to the Fatimids in 909.

Sep 24, 2026

Aghlabid land and tax administration in Ifriqiya

Aghlabid land and tax administration in Ifriqiya (نظام خراج الأغالبة) was the fiscal system under which the Aghlabids paid Baghdad 40,000 dinars yearly and ruled autonomously from 800.

Sep 24, 2026

Aghlabid navy

The Aghlabid navy (الأسطول الأغلبي) was the naval force of the Aghlabid dynasty of Ifriqiya, built up from 800 and used to conquer Sicily until the Fatimid takeover in 909.

Oct 10, 2026

Aghor Nath Gupta

Aghor Nath Gupta was a 19th-century Bengali missionary of the Brahmo Samaj who served Keshub Chunder Sen, wrote the first Bengali book on Buddhism, and died in 1881.

Aghori

The Aghori, also called the Aghor tradition, are a small Shaiva ascetic order of northern India centered on Varanasi, whose nondual philosophy holds that Shiva is present in everything.