WebMethods: A keyword search was done in Scopus, Pubmed and CINAHL databases using all the synonyms of root caries in the published literature (till January 1st, 2024). The search was supplemented with standard Boolean operators and other keywords like prevalence, epidemiology in the title, abstract and MeSH terms. Web27 Jun 2024 · Proximity searching is a way to search for two or more words that occur within a certain number of words from each other. The proximity operators are composed of a letter (N or W) and a number (to specify the number of words). The number cannot exceed 255. The proximity operator is placed between the words that are to be searched, as …
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Web12 Apr 2024 · Not all databases provide subject headings or a thesaurus (e.g. Web of Science and Scopus do not). In these databases you need to rely on just keyword searching, ensuring that you use as many synonyms, and alternate terms as possible. ... AND and OR are Boolean operators. OR is used to combine synonyms, abbreviations and all related … Websearch string: A search string is the combination of all text, numbers and symbols entered by a user into a search engine to find desired results. toddler girl fur coats
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Web14 Mar 2024 · In This Article. A Boolean search, in the context of a search engine, is a type of search where you can use special words or symbols to limit, widen, or define your search. This is possible through Boolean operators such as AND, OR, NOT, and NEAR, as well as the symbols + (add) and - (subtract). When you include an operator in a Boolean search ... WebBoolean operators (AND, OR and NOT) allow you to try different combinations of search terms or subject headings. ... Scopus; Cited reference searching can complement your literature search. However be careful not to just look at papers that have been cited in isolation. A robust literature search is also needed to limit publication bias. Web7 Apr 2024 · In this article. Logical negation operator ! The logical Boolean operators perform logical operations with bool operands. The operators include the unary logical negation (! ), binary logical AND ( & ), OR ( ), and exclusive OR ( ^ ), and the binary conditional logical AND ( &&) and OR ( ). Unary ! (logical negation) operator. penthouse holidays in spain