Computer Sciences

Novel AI framework generates images from nothing

A new, potentially revolutionary artificial intelligence framework called "Blackout Diffusion" generates images from a completely empty picture, meaning that, unlike other generative diffusion models, the machine-learning ...

Business

Philips stock slumps after new FDA warning

Shares in Dutch medical device manufacturer Philips plunged Wednesday after the US Food and Drug Administration warned that its new machine to help patients sleep risked overheating.

Security

Australian ports reopen after cyberattack

Major ports handling 40 percent of Australia's freight trade have reopened, operator DP World said Monday, three days after they were crippled by a cyberattack.

Internet

Uncertainty as internet reaches remote Amazon

Covered in tattoos resembling jaguar spots, an Indigenous man connects to TikTok for the very first time from a previously off-the-grid village deep in the Amazon.

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Drug

A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.

In pharmacology, Dictionary.com defines a drug as "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.

Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens. They may be used for perceived beneficial effects on perception, consciousness, personality, and behavior. Some drugs can cause addiction and habituation.

Drugs are usually distinguished from endogenous biochemicals by being introduced from outside the organism.[citation needed] For example, insulin is a hormone that is synthesized in the body; it is called a hormone when it is synthesized by the pancreas inside the body, but if it is introduced into the body from outside, it is called a drug.[citation needed]

Many natural substances such as beers, wines, and some mushrooms, blur the line between food and drugs, as when ingested they affect the functioning of both mind and body.

This text uses material from Wikipedia, licensed under CC BY-SA