All articles starting with G
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Glastonbury Lake Village
Glastonbury Lake Village is an Iron Age crannog settlement of 90 mounds and 40 roundhouses on the Somerset Levels near Godney, discovered in 1892 by Arthur Bulleid, excavated 1892–1907, occupied roughly 200–50 BC.
Glastonbury Tor
Glastonbury Tor is a 158 m conical hill in Somerset, England, topped by roofless St Michael's Tower, a scheduled monument and National Trust site with 6th-century occupation, monastic remains, and legends of Gwyn ab Nudd, Avalon, and the Holy Grail.
Glauber dynamics
Glauber dynamics, or the Glauber process, is a Markov chain that flips Ising spins one at a time toward the Boltzmann distribution, introduced by Roy J. Glauber in 1963.
Glauber Rocha
Glauber Rocha (1939-1981), Brazilian filmmaker of Cinema Novo, author of the 1965 manifesto A Estetica da Fome and director of Deus e o diabo na terra do sol, Terra em transe, and Antonio das Mortes, Cannes prize winner who went into exile in 1971.
Glauber theory
Glauber theory is a multiple-scattering formalism introduced by Roy J. Glauber in 1955 that calculates how high-energy particles scatter from composite targets such as nuclei.
Glauber-Sudarshan P representation
The Glauber-Sudarshan P representation is a phase-space representation in quantum optics, introduced in 1963, that serves as the standard criterion for classical versus nonclassical light.
Glauberg
Glauberg (Glauburg, Wetterau, Hesse): basalt hill and early Celtic princely seat (Fürstensitz) c. 500 BC, with princely graves, the Glauberg Warrior sandstone statues, a 350 m processional way, and settlement from the Neolithic to the Staufer era.
Glauberite
Glauberite is a monoclinic sodium-calcium sulfate mineral, Na₂Ca(SO₄)₂, described by Alexandre Brongniart in 1808 from a Spanish salt deposit and mined as an ore of sodium sulfate for detergents, glass, and paper.
Glaucidium
Glaucidium (pygmy-owls, owlets), F. Boie 1826, is a genus of small Strigidae owls in Surniinae, spanning Eurasia, Africa, and the Americas; species counts rose from 12–13 to about 29–32 as vocal and molecular studies split taxa.
Glaucidium passerinum
Glaucidium passerinum, the Eurasian pygmy owl (Sperlingskauz, sóweczka), Europe's smallest owl, a diurnal-dusk hunter of voles and birds in boreal and montane conifer forests, caching prey in cavities; IUCN Least Concern.
Glaucidium siju
Glaucidium siju, the Cuban pygmy-owl (Sijú Platanero), a small Strigidae owl endemic to Cuba, resident, fairly common, Least Concern (2024), EOO 222,000 km², three subspecies, decreasing trend from forest loss.
Glaucio H. Paulino
Glaucio H. Paulino is a structural and computational engineer and Princeton professor, elected to the National Academy of Engineering in 2021 for contributions to topology optimization and origami engineering.
Glauco P. Tocchini‐Valentini
Glauco P. Tocchini-Valentini is an Italian molecular biologist at Italy's National Research Council, known for defining the split promoter of eukaryotic tRNA genes and RNA maturation enzymes.
Glaucoma
Glaucoma is a group of eye diseases damaging the optic nerve and causing irreversible vision loss; types include open-angle (9 in 10 US cases), angle-closure, congenital, and normal-tension glaucoma, treated by pressure-lowering drops, laser, and surgery.
Glaucoma drainage implant surgery
Glaucoma drainage implant surgery implants a tube and plate that drain fluid from the eye's anterior chamber to a reservoir, lowering pressure; common devices include the Ahmed valve and Baerveldt implant.
Glaucoma Drainage Implants
Glaucoma drainage implants (aqueous shunts, tube shunts; Molteno, Baerveldt, Ahmed) are silicone tube-and-plate devices that drain aqueous humor to lower eye pressure in refractory glaucoma, in valved and non-valved designs.
Glaucoma filtration surgery
Glaucoma filtration surgery is an operation that creates a permanent drainage channel for aqueous humor, forming a filtering bleb that lowers intraocular pressure in glaucoma.
Glaucoma suspect
Glaucoma suspect (borderline glaucoma; ICD-11 9C60, ICD-10 H40.0): a person with elevated IOP, suspicious optic nerve, visual field, or angle findings, or family history, at risk of future glaucoma but not yet glaucomatous.
Glaucoma-ectopia lentis-microspherophakia-stiff joints-short stature syndrome
GEMSS syndrome (glaucoma-ectopia lentis-microspherophakia-stiff joints-short stature), also called Weill-Marchesani syndrome 2, is a rare autosomal dominant FBN1-related disorder with lens dislocation, glaucoma, short stature, and progressive joint stiffness.
Glaucomatocyclitic crisis disease
Glaucomatocyclitic crisis disease, or Posner-Schlossman syndrome, a rare recurrent unilateral inflammatory glaucoma with IOP spikes of 40-50 mm Hg, mild uveitis, open angles, and CMV association.
Glaucomatous optic neuropathy
Glaucomatous optic neuropathy is the characteristic optic nerve damage in glaucoma, marked by progressive retinal ganglion cell death, optic nerve head excavation, and visual field loss.
Glaucomys
Glaucomys, the New World flying squirrels, is the only flying squirrel genus outside Eurasia, in tribe Pteromyini. Species: G. sabrinus, G. volans, and G. oregonensis, split from G. sabrinus in 2017.
Glauconite
Glauconite is a green iron- and potassium-rich clay mineral of the mica group, named in 1828 from the Greek glaucos for bluish green; sand rich in it is called greensand.
Glaucus (Γλαῦκος)
Glaucus (Γλαῦκος, Glaukos), Greek sea god and patron of fishermen, a Boeotian fisherman deified after eating a magical herb; also Glaucus of Potniae and Glaucus son of Minos.
Glaucus atlanticus
Glaucus atlanticus (blue sea dragon, blue dragon) is a small pelagic aeolid nudibranch of the family Glaucidae that floats upside down at the ocean surface, eats Portuguese man o' war, and stores stolen nematocysts in its cerata.
Glauke
Glauke (Γλαύκη), feminine of Greek glaukos, gleaming grey-blue of the sea: a Nereid of Homer and Hesiod, the Corinthian princess of the Medea myth and her spring, and an Ionian anchorage on Mt. Mykale.
Glaukos
Glaukos (γλαυκός) is an ancient Greek color term for light blue, gray, or green hues, mostly eye color; root of glaucoma, name of Herodotus's oracle consultant, the Knossos shrine, Glaukos Linea, and Glaukos Corporation (GKOS).
Glaukos Linea
Glaukos Linea is a 1,400-km-wide linea, or tectonic fracture feature, on Jupiter's moon Europa, centered at 57.8 degrees latitude, IAU-approved in 2003 and named for a son of Minos in Greek mythology.
Glaura
Glaura is a 1799 book of erotic lyric poems by the Brazilian Arcadian poet Silva Alvarenga, with 59 rondós and 56 madrigals on the shepherd Alcindo's elusive beloved.
Glava Panega
Glava Panega (Глава Панега) is one of Bulgaria's largest karst springs, source of the Zlatna Panega river near Lukovit, and the site of a 2nd-4th century Roman sanctuary of Asclepius syncretized with the Thracian Horseman.