Security

Costa Rica public health system targeted by ransomware

Another attempted hacking of a Costa Rican government agency's computer system led the country's public health agency to shut down its systems Tuesday to protect itself, complicating the medical care of thousands of people.

Computer Sciences

Watching viscous flow, but faster

By redesigning how fluids are simulated, KAUST researchers have demonstrated a more than tenfold speed increase on the previous state of the art for slow-flowing viscous liquids.

Security

California hospital hit by cybersecurity attack

Tri-City Medical Center in Oceanside, California, is diverting ambulance traffic to other hospitals Thursday as it copes with a cybersecurity attack that has forced it to declare "an internal disaster" as workers scramble ...

Machine learning & AI

Defining the unexplainable in artificial intelligence

The term "artificial intelligence," usually abbreviated as AI, means many things to many people. Initially, the phrase was used to allude to the potential of machines, computers, specifically, somehow gaining sentience on ...

Security

Israeli hospital targeted in ransomware attack

An Israeli hospital was targeted Wednesday by a ransomware attack, officials said, with the state's cyber directorate calling it the first such attack on a hospital in the country.

Business

Taiwan chipmaker TSMC says profit up 11.2% as demand rises

TSMC, the biggest contract manufacturer of processor chips for Apple Inc. and other global brands, said Thursday its latest quarterly profit rose 11.2% over a year earlier to $4.8 billion as demand for smartphones and consumer ...

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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