What is a placebo and why is it used? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What is a placebo and why is it used? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

What is a placebo and why is it used?

Borrowed from Latin, the word "placebo", meaning "please", entered medical practice about 200 years ago. This word is called dosage forms containing neutral substances.

Placebo is used to study the role of suggestion in the therapeutic effect of drugs, and also as a control in the study of the effectiveness of new drugs.

The placebo effect is explained by suggestion: by acting on the psyche, you can bring a person to death or save him from illness. A person can recover simply by drinking a glass of pure water, if he is sure that a miraculous medicine is dissolved in it.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What is the origin of Mr. Spock's greeting from the TV series Star Trek?

In the television series Star Trek, Leonard Nimoy's characteristic greeting of Mister Spock was the gesture of the inhabitants of the planet Vulcan - the index and middle fingers closed together, as well as the ring and little fingers with a gap between the middle and ring fingers. This greeting is nothing more than an ancient Jewish blessing, with which the priests of the Kohanim bless the people of Israel in the synagogues. Nimoy attended such a service as a child and was so impressed by the gesture that he decided to use it many years later on the show.

Test your knowledge! Did you know...

▪ How big is the age of the Universe and on the basis of what data is it determined?

▪ What is Bucintoro?

▪ Which countries were originally called the third world?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Serial electric car Volkswagen ID.3 04.09.2019

The ID.3 is an all-electric hatchback based on the MEB platform. The machine is 4 mm long, 260 m wide, and 1 mm high; wheelbase - 810 mm.

The electric motor is mounted on the rear axle and has a return of either 150 or 204 horsepower, depending on the version (with the same torque - 310 Nm); the capacity of the battery pack - depending on the option - will be 45, 58 or 77 kilowatt-hours (in the first case, according to VW, the power reserve will be 330 kilometers, in the second - 420 km, in the third - 550 km (in all cases - according to the WLTP cycle)).

A special edition of the ID.3, the 1ST, is expected to come first, available in three equipment options; it will have a battery with a capacity of 58 kilowatt-hours and a 204 hp engine. (the car will be able to reach speeds of up to 160 kilometers per hour); prices for this version, according to VW, will start at less than 40 euros.

Later, other versions of the electric hatchback will come to the market; Pricing has yet to be revealed, but according to VW, the base ID.3 will cost no more than 30 euros.

Other interesting news:

▪ Samsung Secure Element chip for hardware and software security of IoT devices

▪ Biometric tattoo monitors health

▪ Kite received a bionic prosthetic leg

▪ Challenging hobbies help rejuvenate the brain

▪ Luminous electric car charging cable

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Parameters of radio components. Article selection

▪ article Pathological anatomy. Crib

▪ article Is it true that the best remedy for depression is to give up on it? Detailed answer

▪ article Fitter-assembler of radio-electronic equipment and devices. Job description

▪ article Universal probe-indicator. Encyclopedia of radio electronics and electrical engineering

▪ article Active low-pass filter. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews