I've eat 1 -2 days old sandwiches of peanut butter and a lot of other things (ham, chiken, chocolate, cheese...) without problems ;) 15-20 hours is not too much. I think, only raw eeg could be unsafe.
Part of the Smart grid glossary: The International Telecommunication Union (ITU) is an agency of the United Nations (UN) whose purpose is to coordinate telecommunication operations and services throughout the world. Originally founded in 1865, as the International Telegraph Union, the ITU is the oldest existing international organization.
Arizona State University-Global Launch Intensive English Program. Arizona State University (ASU) ASU is the largest university in the United States, ranked one of the top 100 universities in the world, and a top 50 in the United States. ASU offers more than 600 top-quality accredited degree progra ...