About TR

About TR

Acronyms
What is TR? According to AbbreviationFinder, the Reference Rate (TR) is a reference interest rate widely used as an indicator for contracts or financial assets. This rate is calculated by the Central Bank of Brazil. The TR emerged as a reference for interest rates in the Brazilian economy, being one of the instruments for controlling inflation. It was created during the Collor government in 1991, integrating a set of measures adopted by the "Collor II Plan". At the time it was created, the country was experiencing very high inflation and many contracts and investments indexed this inflation, generating even higher prices. TR was one of the ways the government of the time tried to use it so that the economy would no longer rely on such high rates. Currently, TR…
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About NTSC

About NTSC

Acronyms
NTSC (or National Television System Commission according to AbbreviationFinder) is a system of coding and transmission of television analog color developed in the United States around 1940, and is used today in the most of America and Japan, among other countries. A derivative of NTSC is the PAL system used in Europe and some countries in South America. History The NTSC television system consists of an extension of the North American monochrome (black and white) system, its development was started by the Columbia Broadcasting System (CBS) at the end of the 30s, but it was in the 50s when it was approved by the FCC. This system consists of the transmission of about 30 images per second formed by 486 (492) visible horizontal lines with up to 648 pixels each. To take better advantage…
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About Advanced Encryption Standard

About Advanced Encryption Standard

Acronyms
According to AbbreviationFinder, Advanced Encryption Standard is known as AES. In 1997, the National Institute of Standards and Technology (NIST) decided to hold a competition to choose a new encryption algorithm capable of protecting sensitive information during the 21st century. This algorithm was called Advanced Encryption Standard (AES). On January 2, 1997, NIST announced its intention to develop AES, with the help of the crypto industry and community. On September 12 of that year the formal call was made. In this call, several conditions were indicated for the algorithms to be presented: Be in the public domain, available to everyone. Be a symmetric encryption algorithm and support blocks of at least 128 bits. The encryption keys could be 128, 192 and 256 bits. Be implementable in both hardware and software. The…
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About AES

About AES

Acronyms
According to AbbreviationFinder, AES stands for Advanced Encryption Standard.Also known as Rijndael (pronounced "Rain Doll" in English), it is a block encryption scheme adopted as an encryption standard by the United States government. The AES was announced by the National Institute of Standards and Technology (NIST) as FIPS PUB 197 of the United States (FIPS 197) on November 26, 2001 after a standardization process that lasted 5 years. It became an effective standard on May 26, 2002. Since 2006, AES is one of the most popular algorithms used in symmetric cryptography. The cipher was developed by two Belgian cryptologists, Joan Daemen and Vincent Rijmen, both students at Katholieke Universiteit Leuven, and submitted to the AES selection process under the name "Rijndael". Pseudocode Key expansion using Rijndael's key scheme. Initial stage:…
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About RKI

About RKI

Acronyms
The Robert Koch Institute, abbreviated as RKI by AbbreviationFinder, is a state institute based in Berlin. The RKI is a public health care facility. Its mission is to maintain the health of the population - that is, to recognize diseases, to combat them and to protect people from them. Diseases, especially infectious diseases, are being researched there on all levels. In order to find out what makes people sick and healthy, infectious and non-infectious diseases and their risk factors are examined in detail. The aim of the experts is to identify pathogens at an early stage and to combat them. The Robert Koch Institute is an independent authority subordinate to the Ministry of Health. It advises the federal ministries and draws attention to risks such as contagious diseases at an…
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About PCR

About PCR

Acronyms
Polymerase chain reaction The polymerase chain reaction, abbreviated as PCR by AbbreviationFinder is a molecular biological method for amplification of DNA segments. The method is now one of the standard procedures in molecular biology and was developed in 1985 by KB Mullis (* 1944, † 2019) . KB Mullis received the Nobel Prize in Chemistry for this in 1993. This is how PCR works The process of a PCR runs in cycles that comprise three steps: Denaturation: During denaturation, the DNA, which consists of two strands, is broken down into its individual strands by increasing the temperature to more than 90 ° C. This makes it accessible for reproduction. Binding of a primer: A primer is a short DNA sequence that can bind to its exact counterpart on the single strand of DNA, thereby…
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About NATO

About NATO

Acronyms
September 11, 2001 NATO's strategic concept from 1991 was updated in 1999. The purely military threats were further toned down, while other security threats, such as economic and political, were given a more prominent place. But the terrorist attacks that shook the United States on September 11, 2001, also affected NATO. This was underlined by the fact that, for the first time in its history, on 12 September 2001, NATO invoked the so-called Article 5 of the NATO Charter, which provides for mutual assistance in the event of an attack on a Member State. There were two somewhat paradoxical aspects of this situation. First, NATO had lived for more than 50 years in the notion that if Article 5 were ever invoked, it would be the United States that came…
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