- A review article on “Spermatogonial stem cells and spermatogenesis in mice, monkeys and men” (PMC6010318) was shared as a resource for comparative stem-cell biology and potential fertility-preservation strategies.  
- Participants discussed open-access discovery tools, highlighting oaDOI/Unpaywall as a legal resolver that routes DOIs only to university repositories, government archives, society servers, or publisher-hosted OA copies.  
- A proposal was floated to create “pdf diffs”: small patch files that replace bloated objects in scholarly PDFs with AI-generated vector graphics or other space-saving assets, letting users shrink local mirrors without redistributing full papers.  
- The legality of circulating such diffs was debated—potentially permissible for open-access articles, but still risky for paywalled content—along with ideas of trading diffs to publishers for additional OA releases or credits.  
- Concerns were raised about ResearchGate’s copyright standing, noting that while author-uploaded final drafts are usually allowed, uploading the publisher’s typeset PDF often is not.