Computer Sciences
Researchers from the University of Geneva (UNIGE), the Geneva University Hospitals (HUG), and the National University of Singapore (NUS) have developed a novel method for evaluating the interpretability of artificial intelligence ...
Mar 22, 2023
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67
Energy & Green Tech
In Germany, there are millions of small firing systems; wood-burning stoves for domestic use in which logs are burned. In the process, a lot of particulate and gaseous pollutants are released into the atmosphere: ultrafine ...
Dec 20, 2023
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1
Engineering
MIT researchers, working with scientists from Brigham and Women's Hospital, have developed a new way to power and communicate with devices implanted deep within the human body. Such devices could be used to deliver drugs, ...
Jun 4, 2018
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191
Business
The corporate parent of Facebook and Instagram plans to open a digital gateway for kids as young as 10 years old to enter virtual reality through the Meta Quest headset, despite rising concerns about children spending too ...
Jun 17, 2023
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8
Machine learning & AI
A new MIT study finds "health knowledge graphs," which show relationships between symptoms and diseases and are intended to help with clinical diagnosis, can fall short for certain conditions and patient populations. The ...
Jan 10, 2020
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22
Engineering
For the last few decades, battery research has largely focused on rechargeable lithium-ion batteries, which are used in everything from electric cars to portable electronics and have improved dramatically in terms of affordability ...
Nov 4, 2022
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70
Robotics
The distance between the Norwegian towns of Røros and Trondheim is about 100 kilometers as the crow flies. Three entrepreneurs from the Norwegian University of Science and Technology (NTNU)want to use drones to transport ...
Sep 9, 2021
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7
Engineering
Inspired by a sticky substance that spiders use to catch their prey, MIT engineers have designed a double-sided tape that can rapidly seal tissues together.
Oct 30, 2019
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180
Telecom
Eye rubbing time—New Scientist had the headline "Wireless signal sent through meat fast enough to watch Netflix" and there were no typos. They meant what they said. RT explained further that "researchers have developed ...
Engineering
In computer graphics and computer-aided design (CAD), 3D objects are often represented by the contours of their outer surfaces. Computers store these shapes as "thin shells," which model the contours of the skin of an animated ...
May 24, 2023
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102
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
