What is a MeSH descriptor?

What is a MeSH descriptor?

A Descriptor is a class in MeSH RDF with the name meshv:Descriptor. Also known as Main Headings or MeSH Headings, Descriptors are used to index citations in the NLM MEDLINE database and to describe the subjects for NLM Catalog records. Descriptors are searchable in PubMed and NLM Catalog with the search tag [MH].

How many MeSH descriptors are there?

MeSH contains approximately 27,000 entries and is updated annually to reflect changes in medicine and medical terminology. MeSH terms are arranged in alphabetic order and in a hierarchical structure by subject categories with more specific terms arranged beneath broader terms.

What are MeSH entry terms?

Entry Terms Entry terms, sometimes called “See cross-references” in printed listings, are synonyms, alternate forms, and other closely related terms in a given MeSH record that are generally used interchangeably with the preferred Descriptor term* for the purposes of indexing and retrieval.

What is supplementary concept?

Supplementary Concept Records are terms in a separate thesaurus from the Medical Subject Headings. These are primarily substance terms, but also include some protocols, some virus terms and rare disease terms.

What is an example of a MeSH term?

For example, the subheading “Therapy” is used with a MeSH term that describes a disease, when the article is about treatment for that disease. Publication Types: This describes the type of article that is being indexed, for example, a “Journal Article” or a “Review” or “Clinical Trial”.

Does Cinahl use MeSH terms?

CINAHL uses the (U.S.) National Library of Medicine’s Medical Subject Headings (MeSH). These subject headings are arranged in a hierarchy that enables searching at various levels of detail, from general to very specific terms.

What are examples of MeSH terms?

How do you find a MeSH term?

To access MeSH terms, click on the drop-down menu beside the search box on the main PubMed page. Type in a term and the system will present you with a list of subject headings, with definitions, from which you can choose.

How do you know if a term is a MeSH term?

You can search for MeSH terms directly using NLM’s MeSH database, available for free online: http://www.ncbi.nlm.nih.gov/mesh. You can also search the MeSH database through the various interfaces to Medline – each interface provides an option to type in words and find MeSH terms.

Does Ebsco use MeSH terms?

This tutorial demonstrates how to create a search using the CINAHL/MeSH Subject Headings functionality in EBSCOhost. Note: If you are unable to view videos on YouTube, click the following link to view this tutorial.

How do you do MeSH terms in CINAHL?

To use CINAHL/MeSH subject headings:

1. Enter your search terms in the Find field, check the Suggest Subject Terms box and click Search.
2. A result list of related terms is displayed.
3. Check boxes of desired subheadings to add them to your search.
4. Click Browse Additional Terms to add more headings to your search.

Does CINAHL use MeSH terms?

What is the descriptor / concept / term structure in mesh?

The Descriptor/Concept/Term structure makes it possible to attach various data elements in MeSH to the appropriate object. For example, thesauri have long distinguished between “broader terms” and “narrower” terms, but it is clear that these are relations between concepts and only derivatively between terms in the concepts.

How many concepts are in a mesh record?

Each MeSH record consists of one or more Concepts, and each Concept consists in one or more synonymous terms. This Descriptor record consists of two Concepts and five terms. Each Concept has a Preferred Term, which is also said to be the name of the Concept.

What do you look for in mesh search?

FullWord Search looks for complete entry terms only, not strings that are part of a term, word, or sentence. SubString Search will find records that have a string of characters as a complete term, or embedded in a term, word or sentence. Each method can be further modified to search by Exact Match, All Fragments, or Any Fragment .

How is the structure of a mesh tree different from a tree?

This is in contrast to the MeSH Tree Structures, which are hierarchical in structure, but the relationships are between different Descriptor records. MeSH includes both types of relationships. See “Concepts, Synonyms, and Descriptor Structure” in Introduction to MeSH in XML format.