Academic Heritage in MARC records

I have long wondered how I might encode information contained in the https://academictree.org in MARC Authority Records. Obviously via MARC relator roles the information might be encoded within the bibliographic record. However, looking at the MARC 510 field on the linked record https://lccn.loc.gov/no2004069960, it seems that the MARC 500 field on authority Records might be used with several of the sub-fields.

Converting DC Subjects to Schema.org

DC has the ability to specify subjects such as UDC, LCSH or DDC. How would these be converted to schema.org?

{
"@context": "https://schema.org/",
"@type": "Book",
"name": "British Isles - A History",
"about": {
"@type": "DefinedTerm",
"@id": "https://id.oclc.org/worldcat/ddc/E48m7BJXdrm3XY4Xv86d88WGt3",
"name": "British Isles",
"termCode": "941",
"inDefinedTermSet": "https://id.oclc.org/worldcat/ddc/"
}
}

Language Documentation Gear

I have been investigating some new video equipment for language documentation. Currently highly recommended is the Osmo Pocket 3 and the GoPro Hero 11 (as this has GPS embedded whereas the GP12 does not). It is not entirely clear if the GP13 has GPS or not.

Also my microphones need some attention. I need some endcaps and some windscreens.

I have been thinking about using updating my capabilities for recording and regularly recording Katja Playing Music.

Serials, MARC Records and RDA Core

So I have several questions:

  1. What does a high (over the top) MARC Record look like both for the ISSN(s) and the article?
  2. What is the overlap between RDA Core and Dublin Core?
  3. What user tasks are left out between RDA full and RDA Core?

Some resources:

For RDA tips:
https://web.library.yale.edu/book/export/html/1733
https://libguides.nmstatelibrary.org/rda

RDA Core
https://www.loc.gov/aba/rda/pdf/core_elements.pdf
https://www.librarianshipstudies.com/2016/03/rda-core-elements.html
https://www.loc.gov/aba/rda/core_elements.html

RDA Core for serials: https://www.youtube.com/watch?v=AF2DDYczBeA
https://socialsci.libretexts.org/Courses/Sacramento_City_College/LIBT331%3A_Library_Cataloging_Procedures_(Li)/03%3A_Copy_Cataloging/3.04%3A_CONSER_RDA_Core_Elements_for_Serials