All articles starting with E
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Ece İrtem
Ece İrtem (Ece Irtem), Turkish actress (1991–2026), born in Sivas, trained in opera at Yaşar University; known for Yeni Gelin, Payitaht Abdülhamid, Bay Yanlış, Mahkum, and Kızılcık Şerbeti; died in Istanbul aged 35, autopsy citing alcohol poisoning.
ECE1
ECE1 (endothelin converting enzyme 1, ECE-1, EC 3.4.24.71) is a human M13 zinc metalloendopeptidase gene on 1p36.12 that converts big endothelin-1 to vasoactive ET-1, with four isoforms, broad peptide substrate specificity, and mutations linked to Hirschsprung disease.
Ecgberht, King of Wessex
Ecgberht (Egbert), King of Wessex 802–839, son of Ealhmund of Kent, exiled in Francia by Offa and Beorhtric; defeated Mercia at Ellendun in 825, briefly conquered Mercia in 829, eighth Bretwalda, father of Æthelwulf.
Echelle grating
An echelle grating is a diffraction grating with coarsely spaced, steeply blazed grooves, operated in high orders to reach very high spectral resolving power, mainly in astronomical spectroscopy.
Echelle spectrometer
An echelle spectrometer, often called an echelle spectrograph, is an optical instrument that records high-resolution spectra using an echelle grating plus a cross disperser; it was devised by George R. Harrison at MIT in 1949.
ECHELON
ECHELON, also known as Project ECHELON, was a global signals intelligence system under the UKUSA agreement that intercepted satellite communications and filtered them by keyword searches.
Echetla
Echetla was a city or fortress of inland Sicily on the confines of Syracusan territory, besieged by the Romans at the outset of the First Punic War.
Echeveria
Echeveria DC., also known as Mexican rosettes or Mexican snowballs, is a Crassulaceae succulent genus of about 219 accepted species native from southern Texas to northwestern Argentina, centered in Mexico, with CAM photosynthesis and rosette growth.
Echidna
Echidnas, also known as spiny anteaters, are egg-laying mammals of Australia and New Guinea, covered in spines and eating ants and termites with a long sticky tongue.
Echidna (χιδνα) (mythology)
Echidna (Ἔχιδνα, Ekhidna), Greek mythology's half-woman half-serpent "mother of monsters": daughter of Phorcys and Ceto, mate of Typhon, mother of Cerberus, the Hydra, the Chimera, and the Sphinx; also the name of the binary centaur (42355) Typhon-Echidna.
Echiko Maeda
Echiko Maeda (前田悦智子, later Tamura Echiko), born 1952 in Tokyo, is a Japanese volleyball player who won gold at the 1976 Montreal Olympics, the 1974 Tehran Asian Games, and the 1977 World Cup, playing for Sanyo Denki.
Echimyidae
Echimyidae, the spiny rats, is the most diverse family of South American hystricognath rodents, with roughly 78–91 species in 20–22 genera from Central and South America, including arboreal tree rats, bamboo rats, burrowing forms, and the semi-aquatic coypu.
Echinacea
Echinacea (purple coneflower) is a North American Asteraceae genus of nine accepted species, including E. purpurea, E. angustifolia, and E. pallida, used medicinally since Indigenous North American practice and marketed for colds, though clinical evidence is weak.
Echinacea purpurea
Echinacea purpurea, eastern purple coneflower, is a North American Asteraceae perennial used in cold remedies; clinical evidence shows at most a weak 10-20% reduction in cold risk, with allergic and digestive side effects possible.
Echiniscus
Echiniscus (Schultze, 1840) is the largest tardigrade genus, over 160 species of armored, moss- and lichen-dwelling heterotardigrades in Echiniscidae, known for sculptured dorsal plates, anhydrobiosis, and active molecular reclassification.
Echinocactus
Echinocactus (barrel cacti), Link & Otto 1827, a small Cactaceae genus native from the SW and central USA to Mexico; Kew accepts E. horizonthalonius and E. platyacanthus, with the golden barrel now Kroenleinia grusonii; CITES Appendix II.
Echinocardium cordatum
Echinocardium cordatum, the sea potato, is a burrowing heart urchin (Spatangoida, Loveniidae) of temperate sandy seabeds, 6-9 cm, intertidal to 200 m, a cryptic species complex and key bioturbator.
Echinocereus
Echinocereus, commonly called hedgehog cacti, is a genus of about 85 cactus species with short cylindrical stems and funnel-shaped flowers, native to the southwestern United States and Mexico.
Echinochloa
Echinochloa (barnyard grasses, barnyard millets) is a cosmopolitan Poaceae genus of roughly 30–50 or more species; E. crus-galli is a major rice weed with herbicide resistance, while E. frumentacea and E. esculenta are cultivated millets.
Echinochloa colona
Echinochloa colona (jungle rice, junglerice, awnless barnyard grass), an annual C4 grass weed of rice and summer crops in over 60 countries; allohexaploid, highly fecund (72,973 seeds/plant), with glyphosate-resistant populations in Australia.
Echinochloa crus-galli
Echinochloa crus-galli (barnyard grass, cockspur grass) is a coarse annual Poaceae weed of rice and other crops, native from Europe and Asia to Africa, with documented herbicide resistance and use as barnyard millet's wild ancestor.
Echinococcosis
Echinococcosis, or hydatid disease, is a zoonotic parasitic disease caused by Echinococcus tapeworms, mainly cystic echinococcosis (E. granulosus) and alveolar echinococcosis (E. multilocularis), affecting over 1 million people via dog and fox fecal eggs.
Echinococcus
Echinococcus, genus of small taeniid tapeworms (Rudolphi, 1801) causing cystic, alveolar, and neotropical echinococcosis; nine species recognized after 2013 phylogenetic revision; two-host predator-prey life cycle.
Echinococcus granulosus
Echinococcus granulosus (sensu lato), a 2–7 mm dog tapeworm causing cystic echinococcosis (hydatidosis); a cryptic species complex (s.s., equinus, ortleppi, canadensis, felidis) transmitted in a dog–sheep–dog cycle, with hydatid cysts in human liver and lungs.
Echinoderm
Echinoderm (Echinodermata): a phylum of marine deuterostomes, sister clade Ambulacraria with hemichordates, closest invertebrate relatives of chordates. Five living classes, pentaradial adult symmetry, water vascular system, calcite stereom skeleton, mutable collagenous tissue; fossils from the Cambrian.
Echinoderm aquaculture
Echinoderm aquaculture is the captive rearing of echinoderms, chiefly sea urchins, for their edible roe (uni), using hatcheries, sea ranching, and roe enhancement of wild-caught adults, with China and Japan among leading producers.
Echinoderm circulation, respiration and excretion
Echinoderm circulation, respiration and excretion describes how echinoderms manage gases and waste without a heart, blood vessels, or kidneys, relying on cilia-driven coelomic fluid, diffusion, and coelomocytes.
Echinoderm digestive system
The echinoderm digestive system is the food-processing tract of sea stars, sea urchins, sea cucumbers, brittle stars, and crinoids, typically a simple tube looping through the body cavity.
Echinoderm fossil record
The echinoderm fossil record is the global assemblage of fossilized echinoderms, more than 15,000 named species dating to about 518 million years ago in the Cambrian.
Echinoderm injuries and envenomation
Echinoderm injuries and envenomation are harms humans suffer from echinoderms through spine punctures, venom from sea urchins and crown-of-thorns starfish, and sea cucumber toxins, rarely fatal and treated with spine removal and hot water immersion.