Security
Researchers have combined various X-ray imaging technologies to create multi-contrast images that can be used to detect threatening materials such as explosives in thousands of complicated scenarios. The new approach, which ...
May 23, 2024
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15
Energy & Green Tech
Many Americans think of power outages as infrequent inconveniences, but that's quickly changing. Nationwide, major power outages have increased tenfold since 1980, largely because of an aging electrical grid and damage sustained ...
May 23, 2024
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2
Other
Reading about the latest scientific discovery—such as the unearthing of a fossil representing a new species of tiny dinosaur—can be fascinating. But what if it were possible to do more than just read about it? What if ...
May 22, 2024
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68
Engineering
Fine motor skills play a crucial role in human cognition, influencing everything from daily activities to the development of advanced tool-based civilizations. Yet, quantifying and evaluating these skills objectively has ...
May 21, 2024
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71
Machine learning & AI
Powerful new artificial intelligence models sometimes, quite famously, get things wrong—whether hallucinating false information or memorizing others' work and offering it up as their own. To address the latter, researchers ...
May 20, 2024
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158
Security
The latest large-scale ransomware attack on a health technology provider, electronic prescription company MediSecure, was revealed last week.
May 20, 2024
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1
Security
Ascension, a major U.S. health care system with 140 hospitals in 19 states, announced late Thursday that a cyberattack has caused disruptions at some of its hospitals.
May 10, 2024
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9
Robotics
Cornell researchers have developed a robotic feeding system that uses computer vision, machine learning and multimodal sensing to safely feed people with severe mobility limitations, including those with spinal cord injuries, ...
May 9, 2024
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89
Business
South Korean tech giant Samsung said Wednesday it will buy French artificial intelligence company Sonio to boost its cutting-edge medical diagnostic systems.
May 8, 2024
0
1
Robotics
A first-ever stretchy electronic skin could equip robots and other devices with the same softness and touch sensitivity as human skin, opening up new possibilities to perform tasks that require a great deal of precision and ...
May 2, 2024
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82
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
