Telecom

Deep neural networks are coming to your phone

How does a self-driving car tell a person apart from a traffic cone? How does Spotify choose songs for my "Discover Weekly" playlist? Why is Gmail's spam filter so effective?

Electronics & Semiconductors

Thin and ultra-fast photodetector sees the full spectrum

Researchers have developed the world's first photodetector that can see all shades of light, in a prototype device that radically shrinks one of the most fundamental elements of modern technology.

Robotics

Lacking health workers, Germany taps robots for elder care

The white-colored humanoid "Garmi" does not look much different from a typical robot—it stands on a platform with wheels and is equipped with a black screen on which two blue circles acting as eyes are attached.

Computer Sciences

ChatGPT takes on the tough US medical licensing exam

Dr. ChatGPT will see you soon. The artificial intelligence system scored passing or near passing results on the US medical licensing exam, according to a study published on Thursday.

Consumer & Gadgets

Smartwatch tracks medication levels to personalize treatments

Engineers at the UCLA Samueli School of Engineering and their colleagues at Stanford School of Medicine have demonstrated that drug levels inside the body can be tracked in real time using a custom smartwatch that analyzes ...

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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, a drug is "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/or 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 psychoactive mushrooms, blur the line between food and recreational drugs, as when ingested they affect the functioning of both mind and body and some substances normally considered drugs such as DMT (Dimethyltryptamine) are actually produced by the human body in trace amounts.

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