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Methylxanthines are chemical compounds which are derivatives of xanthine with one or more methyl groups, including: One methyl group: 1-Methylxanthine;
7-Methylxanthine (7-MX), also known as heteroxanthine, is an active metabolite of caffeine (1,3,7-trimethylxanthine) and theobromine (3,7-dimethylxanthine). [ 1 ] [ 2 ] It is a non-selective antagonist of the adenosine receptors .
Xanthine (/ ˈ z æ n θ iː n / or / ˈ z æ n θ aɪ n /, from Ancient Greek ξανθός xanthós ' yellow ' for its yellowish-white appearance; archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms. [2]
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Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class and is the most commonly consumed psychoactive substance globally. [9] [10] It is mainly used for its eugeroic (wakefulness promoting), ergogenic (physical performance-enhancing), or nootropic (cognitive-enhancing) properties.
The Movie and Television Review and Classification Board (Filipino: Lupon sa Rebyu at Klasipikasyon ng Pelikula at Telebisyon; [1] abbreviated as MTRCB) is a Filipino government agency under the Office of the President of the Philippines that is responsible for the classification and review of television programs, motion pictures and home videos.
The new campaign was launched in June 27, 2023 and was accompanied by a launch video which was supposed to showcase various tourist destinations in the Philippines. The launch video for the campaign sparked outrage from the Internet when it was discovered to include stock footage of foreign tourist destinations of Brazil, Indonesia, Switzerland ...
An early example of non-narrative abstract collage 16mm short film Conversation in Space (1961) by a UP-graduated painter Rodolfo Paras-Perez, considered one of the earliest animations and one of the earliest experimental films from the Philippines. These animations expand audience’s perspectives of Southeast Asian modern and contemporary art.