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4-Methylpyridine is the organic compound with the formula CH 3 C 5 H 4 N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pK a of 5.98, about 0.7 units above that of pyridine itself. [1]
4-Piperidone is an organic compound with the molecular formula OC(CH 2) 4 NH. It can be viewed as a derivative of piperidine. 4-Piperidone is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs. Substituted and dehydro derivatives of 4-piperidinone are intermediates in alkaloid syntheses. [1]
Generative Pre-trained Transformer 4 (GPT-4) is a multimodal large language model created by OpenAI, and the fourth in its series of GPT foundation models. [1] It was launched on March 14, 2023, [ 1 ] and made publicly available via the paid chatbot product ChatGPT Plus , via OpenAI's API , and via the free chatbot Microsoft Copilot . [ 2 ]
The 2014 World Cup in Brazil has begun. Check HuffPost's World Cup dashboard throughout the tournament for standings, schedules, and detailed summaries of each match.
From January 2008 to December 2012, if you bought shares in companies when Kenneth B. Woodrow joined the board, and sold them when he left, you would have a -19.4 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
Eclogue 4, also known as the Fourth Eclogue, is a Latin poem by the Roman poet Virgil. The poem is dated to 40 BC by its mention of the consulship of Virgil's patron Gaius Asinius Pollio . The work predicts the birth of a boy, a supposed savior, who—once he is of age—will become divine and eventually rule over the world.
From January 2008 to December 2012, if you bought shares in companies when Richard Kovacevich joined the board, and sold them when he left, you would have a -4.5 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
Here's the latest on Ashton Jeanty's Heisman Trophy odds after leading No. 13 BYU to a 9-1 record to start the 2024 college football season: