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Hace 2 días · There are 20 different amino acids. A protein consists of one or more chains of amino acids (called polypeptides) whose sequence is encoded in a gene. Some amino acids can be synthesized in the body, but others (essential amino acids) cannot and must be obtained from a person’s diet.
Hace 3 días · We show that the origin of the antiferromagnetic coupling in spin-1 triangulene chains, which were recently synthesized and measured by Mishra et al. ( Nature 2021, 598, 287−292), originates from a superexchange mechanism. This process, mediated by intertriangulene states, opens the possibility to control parameters in the effective bilinear-biquadratic spin model. We start from the ...
Hace 3 días · A chain ambigram is a design where a word (or sometimes words) are interlinked, forming a repeating chain. Letters are usually overlapped: a word will start partway through another word. Sometimes chain ambigrams are presented in the form of a circle.
Hace 2 días · John Dickerson reports on President Biden's message at the D-Day commemoration in France, how attacks in the Red Sea are hitting the global supply chain, and...
Hace 2 días · Prominent investor Ron Baron has come out in support of Tesla CEO Elon Musk's $56 billion pay package, which is up for a shareholder vote next week, according to an open letter from the Baron ...
Hace 1 día · A chain message making the rounds on Instagram in recent weeks is aimed at stopping Meta, the social media app’s parent company, from using people’s content to train its artificial intelligence (AI). Meta says it uses public Instagram and Facebook posts to train its generative AI models. Generative artificial intelligence is AI that’s ...
Hace 5 días · Chain Letters: Sitcoms Trivia Quiz. In a chain letters quiz, each answer begins with the last letter of the previous answer. For example, if answer one is Smith, answer two might be Howard but can't be Jones. This one's about TV sitcom titles. Good luck!
