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Katerina Denisova January 15, 2021 article reviews
Review of the best articles of "Young Scientist" No. 49 (339)
Another review of quality meta-data will tell you about the efforts of our young researchers. This time there were a lot of worthy introductions, annotations and sets of keywords - the choice was really difficult. But there is a minus that is worth paying attention to. All conclusions have the same drawback: the authors finish their work and do not think about the continuation.

Katerina Denisova January 15, 2021 article reviews
Review of the best articles of "Young Scientist" No. 52 (342)
We present the first review of our young scientists' works this year. Note that the keyword selections are getting better and better. It is not the first time that the entire trio was left without recommendations for improvement. The annotations began to include the objectives of the works: this proves that our our young researchers develop professionally.What is UDC and how to read it 3201
Along with other mandatory elements, when preparing an article for submission to the editorial board, it is necessary to indicate its UDC code. Indeed, if you flip through a scientific journal, you can see that at the beginning of the material - even before the title and the author's surname - some numbers are indicated. We will figure out what they mean and how to decipher UDC codes.

What is UDC and why is it needed?
The universal decimal classification was proposed back in 1897 in Belgium. In the USSR, it began to be used in 1962. The authors of the system, P. Otlet and A. Lafontaine, created such a system for cataloguing knowledge.

Today, the main purpose of UDC is to systematize israel telemarketing list printed publications. Codes are widely used in science, art, and literature. The system is based on tables, the exclusive right to which belongs to the international UDC Consortium. They are understandable to residents of all countries, regardless of language.

In these tables, information is divided hierarchically - from the general field of knowledge to specific issues. Ideally, one UDC code should make it clear what the publication will be about.

What is the difference from BBK
Library and bibliographic classification is a national system, it operates only in Russia. Unlike UDC, it uses not only digital, but also letter designations. The system is based on universal and industry tables. There are more division principles here:

thematic – by fields of knowledge;
formal – according to the form of the printed work;
territorial – at the place of issue.
But the main difference is that the LBC is usually assigned to an entire publication - a monograph, a textbook, a collection. The UDC is assigned to each individual material.