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The choosability (or list colorability or list chromatic number) ch(G) of a graph G is the least number k such that G is k-choosable. More generally, for a function f assigning a positive integer f(v) to each vertex v, a graph G is f-choosable (or f-list-colorable) if it has a list coloring no matter how one assigns a list of f(v) colors to ...
Cl: Chlorine: 0.003214: 145 (4.075 × 10 18 kg) 0.082: 0.000 26: 2013: CnAgri [29] As chlorine is manufactured together with sodium hydroxide in chloralkali process, relative demand for one product changes the price for the other. When demand for sodium hydroxide is relatively high, chlorine price can fall to arbitrarily low levels, even to ...
Dry lubricants or solid lubricants are materials that, despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid oil medium. [ 1] The two main dry lubricants are graphite and molybdenum disulfide. They offer lubrication at temperatures higher than liquid and oil ...
The US Food and Drug Administration (FDA) defines soft contact lenses as: made of soft, flexible plastics that allow oxygen to pass through to the cornea. Soft contact lenses may be easier to adjust to and are more comfortable than rigid gas permeable lenses. Newer soft lens materials include silicone-hydrogels to provide more oxygen to your ...
By 2015 the annual price of Kalydeco had been increased to more than $300,000 per patient. [60] According to an article published in the Milwaukee Journal Sentinel Vertex executives "grossed more than $100 million by cashing in stocks and stock options" and at "one point, the value of company's stock increased more $6 billion in a single day." [61]
Under contract to Universal Pictures, Price traveled to Hollywood, making his screen debut in Service de Luxe (1938). By the 1960s, Vincent Price was working almost exclusively in the horror genre and teen film genres. Price's last film was Edward Scissorhands (1990), and the TV movie The Heart of Justice (1992) was his final screen appearance.
Adjacency list. This undirected cyclic graph can be described by the three unordered lists {b, c }, {a, c }, {a, b }. In graph theory and computer science, an adjacency list is a collection of unordered lists used to represent a finite graph. Each unordered list within an adjacency list describes the set of neighbors of a particular vertex in ...
An influential U.S. drug pricing watchdog raised the price estimate of two experimental gene therapies from Vertex Pharmaceuticals/CRISPR Therapeutics and bluebird bio to as much as $2.05 mln ...