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| Other names | Phetharbital |
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| ECHA InfoCard | 100.006.015 |
| Chemical and physical data | |
| Formula | C14H16N2O3 |
| Molar mass | 260.293 g·mol−1 |
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Phetharbital (phenetharbital) is a barbiturate derivative. It has anticonvulsant effects and relatively weak sedative action, and is considered to have a low abuse potential. [1]
The derivative is a fundamental tool of calculus that quantifies the sensitivity of change of a function's output with respect to its input. The derivative of a function of a single variable at a chosen input value, when it exists, is the slope of the tangent line to the graph of the function at that point. The tangent line is the best linear approximation of the function near that input value. For this reason, the derivative is often described as the instantaneous rate of change, the ratio of the instantaneous change in the dependent variable to that of the independent variable. The process of finding a derivative is called differentiation.
Herbert George Wells was an English writer. Prolific in many genres, he wrote more than fifty novels and dozens of short stories. His non-fiction output included works of social commentary, politics, history, popular science, satire, biography, and autobiography. Wells' science fiction novels are so well regarded that he has been called the "father of science fiction".
H, or h, is the eighth letter in the Latin alphabet, used in the modern English alphabet, including the alphabets of other western European languages and others worldwide. Its name in English is aitch, or regionally haitch.
In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a. phosphoric acid H3PO4.
In chemistry, pH, also referred to as acidity or basicity, historically denotes "potential of hydrogen". It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions are measured to have lower pH values than basic or alkaline solutions.
Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.
The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which certain pairs of physical properties, such as position and momentum, can be simultaneously known. In other words, the more accurately one property is measured, the less accurately the other property can be known.
Atmospheric pressure, also known as air pressure or barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa (1,013.25 hPa), which is equivalent to 1,013.25 millibars, 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is approximately 1 atm.
Corrosion is a natural process that converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials by chemical or electrochemical reaction with their environment. Corrosion engineering is the field dedicated to controlling and preventing corrosion.
M*A*S*H is an American war comedy drama television series that aired on CBS from September 17, 1972, to February 28, 1983. It was developed by Larry Gelbart as the first original spin-off series adapted from the 1970 feature film M*A*S*H, which, in turn, was based on Richard Hooker's 1968 novel MASH: A Novel About Three Army Doctors. The series, which was produced with 20th Century Fox Television for CBS, follows a team of doctors and support staff stationed at the "4077th Mobile Army Surgical Hospital" in Uijeongbu, South Korea, during the Korean War (1950–53).
Helicobacter pylori, previously known as Campylobacter pylori, is a gram-negative, flagellated, helical bacterium. Mutants can have a rod or curved rod shape, and these are less effective. Its helical body is thought to have evolved in order to penetrate the mucous lining of the stomach, helped by its flagella, and thereby establish infection. The bacterium was first identified as the causal agent of gastric ulcers in 1983 by the Australian doctors Barry Marshall and Robin Warren.
H & M Hennes & Mauritz AB, also known as H&M Group, is a multinational clothing company based in Sweden that focuses on fast-fashion clothing. As of 23 June 2022, H&M Group operated in 75 geographical markets with 4,801 stores under the various company brands, with 107,375 full-time equivalent positions.
Paul Michael Levesque, better known by the ring name Triple H, is an American business executive, actor, and retired professional wrestler. Regarded as one of the greatest professional wrestlers of all time, he currently serves as the chief content officer and head of creative for WWE.
Stephanie Marie McMahon Levesque is an American businesswoman and retired professional wrestler. She is known for her various roles within WWE between 1998 and 2023.
William Hall Macy Jr. is an American actor. His film career has been built on appearances in small, independent films, though he has also appeared in mainstream films. His starring roles include those in Fargo (1996), Boogie Nights (1997), Mystery Men (1999), Jurassic Park III (2001), Cellular (2004), Bobby (2006), Wild Hogs (2007), and Shorts (2009). Macy has won two Emmy Awards and four Screen Actors Guild Awards, while his performance in Fargo earned a nomination for the Academy Award for Best Supporting Actor. From 2011 to 2021, he played Frank Gallagher, a main character in Shameless, the Showtime adaptation of the British television series. Macy has been married to Felicity Huffman since 1997.
Homo is a monotypic genus that emerged from the genus Australopithecus and encompasses the extant species Homo sapiens and several extinct species classified as either ancestral to or closely related to modern humans, including Homo erectus and Homo neanderthalensis. The oldest member of the genus is Homo habilis, with records of just over 2 million years ago. Homo, together with the genus Paranthropus, is probably sister to Australopithecus africanus, which itself had split from the lineage of Pan, the chimpanzees.
The WWE Championship is a men's professional wrestling world heavyweight championship created and promoted by the American promotion WWE, defended on the SmackDown brand division. Since April 2022, the title has been jointly held and defended with the WWE Universal Championship as the Undisputed WWE Universal Championship, but both titles have maintained their individual lineages. It is one of three world titles in WWE, alongside its companion Universal Championship on SmackDown, and the World Heavyweight Championship on Raw. The current champion is Roman Reigns, who is in his fourth reign. He won the title by defeating Brock Lesnar in a Winner Takes All match at WrestleMania 38 Night 2 on April 3, 2022, subsequently becoming the Undisputed WWE Universal Champion.
The h-index is an author-level metric that measures both the productivity and citation impact of the publications, initially used for an individual scientist or scholar. The h-index correlates with success indicators such as winning the Nobel Prize, being accepted for research fellowships and holding positions at top universities. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications. The index has more recently been applied to the productivity and impact of a scholarly journal as well as a group of scientists, such as a department or university or country. The index was suggested in 2005 by Jorge E. Hirsch, a physicist at UC San Diego, as a tool for determining theoretical physicists' relative quality and is sometimes called the Hirsch index or Hirsch number.
The Planck constant, or Planck's constant, denoted by , is a fundamental physical constant of foundational importance in quantum mechanics: a photon's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle momentum.
RasenBallsport Leipzig e.V., commonly known as RB Leipzig, Red Bull Leipzig, or simply Leipzig, is a German professional football club based in Leipzig, Saxony. The club was founded in 2009 by the initiative of the company Red Bull GmbH, which purchased the playing rights of fifth-tier side SSV Markranstädt with the intent of advancing the new club to the top-flight Bundesliga within eight years. The men's professional football club is run by the spin-off organization RasenBallsport Leipzig GmbH. RB Leipzig plays its home matches at the Red Bull Arena. The club nickname is Die Roten Bullen.
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