Exact(8)
IUGONET uses both the SPASE keywords and GCMD science keywords.
The ISDC metadata documents for product types benefit from the use of GCMD science keywords.
The domain of the SPASE/IUGONET is specific to near-earth space science, whereas the vocabulary of the GCMD science keywords covers all geo and space science domains.
Especially, we are grateful for the work of Juliane Pilgrim for the translation of the GCMD science keywords into the SKOS format.
The small number of semantic equal concepts comes from the small overlap or intersection of the terminological ontologies or controlled vocabularies SPASE/IUGONET and GCMD science keywords.
Examples of such vocabularies are the GCMD science keywords from NASA (Olsen et al. 2013) or the "allowed values" derived from the Space Physics Archive Search and Extract (SPASE) standard (King et al. 2010).
Similar(52)
The IUGONET data system provides a simple but efficient GUI to the end users.105 Correspondent to the data model, metadata are searchable related to resource types but also using temporal and spatial coverage data or keywords from the controlled SPASE and GCMD science keyword vocabulary.
Data are collected based on Web of Science using keywords "perovskite solar cell".
Relevant publications were identified through electronic searches on PubMed, WorldCat, and Web of Science using keywords, "cortisol," "hair," "confounders," "chronic," "stress," and "correlates".
It was technically not possible to search Web of Science for keywords in the abstracts.
Online databases like Scopus or Web of Science search in keywords.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com