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Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. [ 2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. [ 3]
The iPhone 12 and iPhone 12 Mini (stylized and marketed as iPhone 12 mini) are smartphones designed, developed, and marketed by Apple Inc. They are the fourteenth-generation iPhones, succeeding the iPhone 11. [ 20] They were unveiled at a virtually held Apple Special Event at Apple Park in Cupertino, California, on October 13, 2020, alongside ...
e. In chemistry, pH ( / piːˈeɪtʃ / pee-AYCH ), also referred to as acidity or basicity, historically denotes " potential of hydrogen " (or "power of hydrogen"). [ 1] It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.
6-round tubular magazine (see text for more details) The Winchester Model 1912, also commonly known as the Winchester 1912, Model 12, or M12, is an internal-hammer pump-action shotgun with an external tube magazine. Popularly named the Perfect Repeater at its introduction, it largely set the standard for pump-action shotguns over its 51-year ...
Bust of Schrödinger, in the courtyard arcade of the main building, University of Vienna, Austria Erwin Rudolf Josef Alexander Schrödinger ForMemRS [2] (UK: / ˈ ʃ r ɜː d ɪ ŋ ə, ˈ ʃ r oʊ d ɪ ŋ ə /, US: / ˈ ʃ r oʊ d ɪ ŋ ər /; [3] German: [ˈɛɐ̯vɪn ˈʃʁøːdɪŋɐ]; 12 August 1887 – 4 January 1961), sometimes written as Schroedinger or Schrodinger, was a Nobel Prize ...
Phosphate-buffered saline. Phosphate-buffered saline ( PBS) is a buffer solution (pH ~ 7.4) commonly used in biological research. It is a water-based salt solution containing disodium hydrogen phosphate, sodium chloride and, in some formulations, potassium chloride and potassium dihydrogen phosphate. The buffer helps to maintain a constant pH.
Britton–Robinson buffer. The Britton–Robinson buffer ( BRB or PEM) is a "universal" pH buffer used for the pH range from 2 to 12. It has been used historically as an alternative to the McIlvaine buffer, which has a smaller pH range of effectiveness (from 2 to 8). [ 1]
The Pac-12 Conference (Pacific-12) is a collegiate athletic conference that operates in the Western United States. Its two members are located in the states of Oregon and Washington. The Pac-12 participates at the National Collegiate Athletic Association (NCAA) Division I level for all sports, and its football teams competes in the Football ...