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Tetrahydrobiopterin (BH 4, THB), also known as sapropterin (INN), [5] [6] is a cofactor of the three aromatic amino acid hydroxylase enzymes, [7] used in the degradation of amino acid phenylalanine and in the biosynthesis of the neurotransmitters serotonin (5-hydroxytryptamine, 5-HT), melatonin, dopamine, norepinephrine (noradrenaline), epinephrine (adrenaline), and is a cofactor for the ...
Circuito Toninho da Matta is a 3.095 km (1.923 mi) street circuit located around the Mineirão stadium and Lake Pampulha in Belo Horizonte, Minas Gerais, Brazil. [1] The circuit was opened in August 2024 by hosting the seventh round of 2024 Stock Car Pro Series, and the race was named as BH Stock Festival.
Mannitol hexanitrate is a powerful explosive.Physically, it is a powdery solid at normal temperature ranges, with density of 1.73 g/cm 3.The chemical name is hexanitromannitol and it is also known as nitromannite, MHN, and nitromannitol, and by the trademarks Nitranitol and Mannitrin.
Updated December 17, 2024 at 9:00 AM. Rosie Clayburn is a descendant of the Yurok Tribe, which had its territory — called 'O Rew in the Yurok language — ripped from them nearly two centuries ago.
If ingested, like nitroglycerine, it rapidly causes vasodilation through the release of nitric oxide, a physiological signaling molecule that relaxes smooth muscle. [clarification needed] Consequently, diethylene glycol dinitrate has occasionally been used medically to relieve angina, which is substernal chest pain associated with impaired cardiac circulation.
Donald Trump's election win signals changes in tax policies that could shape the financial future for middle-class Americans. While President-elect Trump promised to lower taxes for most Americans ...
The best books of 2024, according to Goodreads. See all deals. In Other News. Entertainment. Entertainment. Variety. Olivia Hussey, ‘Romeo and Juliet’ and ‘Black Christmas’ star, dies at 73.
The first isotope to be synthesized was 262 Bh in 1981. There are 11 known isotopes ranging from 260 Bh to 274 Bh, and 1 isomer, 262m Bh. The longest-lived isotope is 270 Bh with a half-life of 2.4 minutes, although the unconfirmed 278 Bh may have an even longer half-life of about 690 seconds.