All articles starting with S
44,216 articles
Septic shock
Sepsis with septic shock (ICD-11 1G41) is the severe form of sepsis defined by Sepsis-3: vasopressor-dependent hypotension with lactate above 2 mmol/L, carrying over 40% hospital mortality.
Septic tank
A septic tank is a buried, water-tight container that treats household wastewater on site, settling solids as sludge, floating grease as scum, and draining effluent to a soil drainfield.
Septicemic plague
Septicemic plague: a form of Yersinia pestis infection multiplying in the bloodstream, primary or secondary to bubonic plague; fever, shock, bleeding, blackened extremities; fatal untreated, treatable with antibiotics.
Septimius Severus
Septimius Severus (Lucius Septimius Severus Pertinax, 145–211 CE), Roman emperor 193–211, first African-born emperor, born at Lepcis Magna; won the civil wars of 193–197, reformed the army, founded the Severan dynasty, and built a military monarchy.
Septin
Septins are conserved GTP-binding cytoskeletal proteins of fungi and animals, discovered in budding yeast in 1971, that form hexameric or octameric filaments acting as scaffolds, diffusion barriers, and membrane curvature sensors; 13 human genes, SEPT9 a cancer biomarker.
SEPTIN2
SEPTIN2, also written SEPT2 and formerly NEDD5, is a protein-coding gene on human chromosome 2 that encodes septin-2, a GTP-binding cytoskeletal protein essential for cytokinesis.
SEPTIN7
SEPTIN7 (CDC10, hCdc10), a gene at 7p14.2 encoding septin-7, a 437-aa filament-forming cytoskeletal GTPase; core SEPT2/6/7 complex subunit essential for cytokinesis, mitosis, neurons, and sperm annulus.
SEPTIN9
SEPTIN9 (septin 9) is a human chromosome 17 gene encoding a GTP-binding septin protein involved in cytokinesis; inherited variants cause hereditary neuralgic amyotrophy, and promoter methylation in plasma underlies Epi proColon, the first FDA-approved blood test for colorectal cancer screening.
Septinsular Republic
The Septinsular Republic (Επτάνησος Πολιτεία) was a semi-independent state on the Ionian Islands from 1800 to 1807, under Ottoman sovereignty and Russian protection, and the first Greek state since the fall of the Byzantine Empire.
Septizonium
Septizonium (Septizodium), a monumental three-storey facade nymphaeum built by Septimius Severus, dedicated 203 AD at the SE corner of Rome's Palatine Hill near the Circus Maximus; demolished 1588-89 under Sixtus V.
Septo-optic dysplasia spectrum
Septo-optic dysplasia spectrum (SOD, de Morsier syndrome, ORPHA:3157) is a rare congenital forebrain disorder defined by two or more of optic nerve hypoplasia, pituitary hormone abnormalities, and midline brain defects; incidence about 1 in 10,000 live births.
Septology
Septology (Septologien) is Jon Fosse's seven-part Nynorsk novel published 2019-2021 in three volumes, written as one sentence without full stops, following painter Asle and his doppelganger during Advent; Nobel-linked, Booker-shortlisted.
Septoplasty
Septoplasty is surgery to straighten a deviated nasal septum to relieve nasal obstruction. Randomized trials show it outperforms steroid and saline sprays, with low complication rates and cost-effectiveness by 24 months.
Septorhinoplasty
Septorhinoplasty is a single operation that combines correction of a deviated nasal septum with reshaping of the external nose, improving both nasal airflow and appearance.
Septostomy
Septostomy is a catheter procedure that creates or enlarges an opening in a bodily septum, most often the heart's atrial septum, to relieve pressure or improve blood flow.
Septuagint
The Septuagint, often abbreviated LXX, is the Greek translation of the Hebrew Bible, begun in Egypt around 250 BCE and completed by about 100 CE.
Septuagint as a witness to the Hebrew text
The Septuagint (LXX) is a Greek translation of the Hebrew Bible made between roughly 275 and 150 BCE, preserving evidence for Hebrew text-forms that predate the standardized Masoretic Text.
Septum
A septum is a wall or partition that a dividing cell builds between itself and its daughter cell, made of peptidoglycan in bacteria and of cell wall material in fungi.
Septum formation inhibitor MinC
MinC, septum formation inhibitor, bacterial Min system protein; binds FtsZ, activated by MinD, kept away from midcell by MinE-driven pole-to-pole oscillation, preventing polar Z rings and minicells.
Septwolves
Septwolves (七匹狼), formally Fujian Septwolves Industry, is a Chinese menswear company founded in Jinjiang, Fujian, listed in Shenzhen since 2004 and known for jackets, a category where it claims first place in market share.
Sepu Kangri
Sepu Kangri (色浦岗日), the Great White Snow God, is a 6,956 m ultra-prominent peak in the Nyainqentanglha Mountains of eastern Tibet, first climbed on 2 October 2002 by Mark Newcomb and Carlos Buhler after failed Bonington expeditions.
Sepulcretum
Sepulcretum: modern name for the archaic Iron Age necropolis found in April 1902 near the temple of Antoninus and Faustina in the Roman Forum, excavated by Giacomo Boni, with cremation and inhumation graves used from roughly the 9th–8th to the 6th century BC.
Sepulcrum Arruntiorum
Sepulcrum Arruntiorum: Augustan-era Roman columbarium tomb near Porta Maggiore built by L. Arruntius (consul A.D. 6) for his family, freedmen, and slaves; discovered 1733, demolished c. 1900, known from Ghezzi and Piranesi drawings and CIL VI.5931-5960.
Sepultura
Sepultura: Brazilian thrash/death/groove metal band formed 1984 in Belo Horizonte by Max and Igor Cavalera; known for Beneath the Remains, Chaos A.D., and Roots; disbanding after the 2023-announced farewell tour ending November 2026 in São Paulo.
Sepulveda Dam
Sepulveda Dam is a 1941 flood-control dam on the Los Angeles River in the San Fernando Valley, built and operated by the U.S. Army Corps of Engineers.
Seq-Well
Seq-Well is a single-cell RNA sequencing method that traps individual cells in subnanoliter wells with barcoded mRNA-capture beads, introduced in Nature Methods in 2017, profiling thousands of cells for under $1 per cell.
Seq2seq model
A seq2seq (sequence-to-sequence) model is a neural network architecture that maps variable-length input sequences to variable-length outputs, using an encoder and decoder, applied in machine translation and speech recognition.
Seqenenre Tao
Seqenenre Tao, also written Seqenenre-Taa II or Tao II, was a Theban king of the late 17th Dynasty who died in the war against the Hyksos.
seqFISH
seqFISH (sequential fluorescence in situ hybridization) is an imaging-based spatial transcriptomics method that localizes RNA in fixed cells; its seqFISH+ variant images 10,000 genes per cell.
Seqinek (crater on Callisto)
Seqinek is an impact crater on Callisto, Jupiter's outermost large moon, recorded on the USGS geological map I-2770 and in the USGS-IAU Gazetteer of Planetary Nomenclature; Callisto's ancient icy crust preserves dense cratering.