All articles starting with S
44,216 articles
SEPIC converter
A SEPIC (single-ended primary inductance converter) is a DC-to-DC converter topology that produces an output voltage higher or lower than its input, with non-inverting polarity.
Sepid poetry
Sepid poetry (شعر سپید, she'r-e sepid) is a form of modern Persian poetry without classical meter or rhyme, established by Ahmad Shamlu in the 1950s.
Sepideh Moafi (سپیده معافی)
Sepideh Moafi (سپیده معافی, born 1985) is an Iranian-American actress and singer, born in a German refugee camp. Known for Gigi in The L Word: Generation Q, Loretta in The Deuce, and Dr. Baran Al-Hashimi in The Pitt, earning a historic 2026 Emmy nomination and Astra TV Award.
Sepik
Sepik River (Kaiserin Augusta), longest river of Papua New Guinea at 1,126 km, flowing through a largely intact 78,000 km2 basin of 300+ languages; nominated for World Heritage in 2006, threatened by the proposed Frieda River copper-gold mine.
Sepik River carving
Sepik River carving is the wood-carving tradition of peoples along the Sepik River in northern Papua New Guinea, producing masks, ancestor figures, and spirit-house carvings.
Sepiolite
Sepiolite is a hydrated magnesium silicate clay mineral with a fibrous structure and molecular channels; its compact variety is known as meerschaum, traditionally carved into pipes.
Seplat Energy
Seplat Energy is a Nigerian independent oil and gas company headquartered in Lagos, listed on the Nigerian and London exchanges, supplying gas for power generation in Nigeria.
Sepolcro dei Pancrazi
Sepolcro dei Pancrazi (Tomb of the Pancratii): Roman funerary monument of the late 1st to early 2nd century AD at the third mile of the Via Latina, Rome, named for an inscription citing the Pancratii funerary collegium; noted for fish mosaics, frescoes, and stuccoes.
Sepolcro dei Veienti
Sepolcro dei Veienti, a Roman early-imperial aedicula tomb on the Via Veientana road from the Via Cassia to Veii, in Rome's Grottarossa area; cruciform tufa cell, barrel vault, external facing removed.
Sepolcro di via Bisignano
Sepolcro di via Bisignano, also called Tempio della Salute, is a 2nd-century AD Roman brick tomb "a tempietto" on Via Appia Nuova, Rome, with two superimposed chambers, near Villa dei Quintili.
Sepotong Senja untuk Pacarku
Sepotong Senja untuk Pacarku is a 1991 short story by Indonesian writer Seno Gumira Ajidarma, first published in Kompas and among the most discussed works of modern Indonesian fiction.
Sepoy
Sepoy, from Persian sipahi (soldier), an Indian soldier in Mughal, East India Company, and British Indian Army service; first sepoy battalion 1757; 1857 mutiny; now a private-equivalent rank in India, Pakistan, and Nepal.
Sepp Benz
Sepp Benz (Josef Benz, 1944–2021) was a Swiss bobsledder, pusher for pilot Erich Schärer, winning four Olympic medals including two-man gold at Lake Placid 1980, then a leading FIL luge official.
Sepp Blatter
Sepp Blatter, born Joseph Blatter in 1936, is a Swiss football administrator who led FIFA as its eighth president from 1998 to 2015.
Sepp Dietrich
Sepp Dietrich (Josef Dietrich, 1892-1966), Hitler's favorite Waffen-SS commander, led the Leibstandarte, I SS Panzer Corps, and 6th SS Panzer Army; convicted in the Malmedy massacre trial, paroled 1955, later HIAG board member.
Sepp Hochreiter
Sepp Hochreiter (Josef Hochreiter) is a German computer scientist who identified the vanishing gradient problem in 1991, co-invented LSTM, and now leads machine learning research at JKU Linz.
Sepp Kuss
Sepp Kuss (born 1994, Durango, Colorado) is an American climber for Visma-Lease a Bike; 2023 Vuelta a España winner, first US Grand Tour champion since Chris Horner 2013, and stage winner at all three Grand Tours.
Sepp Schnyder
Sepp Schnyder (Josef Schnyder, 1923-2017), Swiss cross-country skier of SC Stoos; not the rower Josef Schneider or the Austrian Sepp Schneider. At Oslo 1952 he placed 37th in the 18 km and 20th in the 50 km.
Sepp Stalder
Sepp Stalder (Josef Stalder, 1919-1991), Swiss artistic gymnast from Lucerne; seven Olympic medals 1948-1952 including 1948 horizontal bar gold; eponymous Stalder bar circle.
Sepp Straka
Sepp Straka (Josef Straka), Austrian PGA Tour golfer born in Vienna, raised in Valdosta, Georgia; University of Georgia graduate, four PGA Tour wins including 2022 Honda Classic and 2025 American Express, 2023 Ryder Cup and two Olympics.
Sepp van den Berg
Sepp van den Berg (born 2001, Zwolle) is a Dutch centre back for Brentford; ex-PEC Zwolle and Liverpool (4 apps, 2019 Club World Cup), loans at Preston, Schalke, Mainz.
Seppo koponeni
Seppo koponeni is an extinct Lower Jurassic spider (~180 Ma) from Grimmen, Germany, described by Selden & Dunlop in 2014; the first Liassic spider, placed in Palpimanoidea incertae sedis, named for arachnologist Seppo Koponen.
Seppo Nikkari
Seppo Olavi Nikkari (1948–2022), nicknamed Kaipolan susi, was a Finnish distance runner, 11th in the 1972 Olympic marathon, Finnish marathon record holder at 2:14:02.8, and 25,000 m and 15-mile world record holder from 1973.
Seppo Raty
Seppo Räty (Seppo Henrik Räty, born 1962), Finnish javelin thrower, Tohmajärven karhu; three straight Olympic medals (bronze 1988, silver 1992, bronze 1996), 1987 world champion, personal best 90.60 m.
Seppo Ylä‐Herttuala
Seppo Ylä-Herttuala is a Finnish Academy Professor at the University of Eastern Finland's A.I. Virtanen Institute in Kuopio, known for cardiovascular gene therapy and pioneering adenoviral gene transfer to human arteries.
Seppuku (切腹)
Seppuku (切腹), known in the West as hara-kiri, is the ritual suicide by disembowelment of Japan's samurai class, performed with a kaishakunin second, developed in the 12th century, outlawed as punishment in 1873, and famous through the 47 ronin, General Nogi, and Mishima.
Sepsis
Sepsis is life-threatening organ dysfunction from a dysregulated host response to infection, also called septicemia historically. GBD 2017 estimated 48.9 million cases and 11 million deaths, 19.7% of global deaths; treated with rapid antibiotics and fluids.
Sepsis in premature infants
Sepsis in premature infants (ORPHA:90051): life-threatening organ dysfunction from dysregulated infection response in babies born under 37 weeks; early-onset within 72 hours, late-onset to three months; Gram-negative pathogens now dominate.
Sepsis screening
Sepsis screening is the systematic use of vital-sign checks, early warning scores, or electronic alerts to identify possible sepsis early, so antibiotics and resuscitation begin promptly.
Sepsis without septic shock
Sepsis without septic shock (ICD-11 1G40) is life-threatening organ dysfunction from a dysregulated host response to infection, without the circulatory dysfunction defining septic shock (1G41).