❄️ As 2025 comes to an end, we wish you all a joyful holiday season and a happy new year. See you in 2026! ✨

📆 Mark your calendars! On January 13, our colleagues Judit Varga and Wolfgang Kaltenbrunner will give a webinar on how narrative CVs reshape research assessment in practice. Sign up with the link below 👇

Very much enjoyed last week's meeting in Cambridge about the Publish-Review-Curate (PRC) model for scholarly publishing. There were lots of highly inspiring discussions, including an important discussion about strengthening coordination between initiatives in this area. asapbio.org/reimagining-...

According to Beigel et al (2025), commercial academic publishing oligopolies are draining science. They call for community control but, as @eleonoradagiene.bsky.social writes, the Lithuanian case shows this to be hard after dismantling domestic journal publishing infrastructure. 👇 Read the post now

On 14 November, leaders from across the global research ecosystem gathered for a workshop co-organized by ASAPbio, @cwtsnl.bsky.social, @dorassessment.bsky.social, and the @sciencecouncil.bsky.social, to advance aligned strategies for reforming publishing and research assessment.

⚖️ Who is best in place to regulate the use of research output for training generative AI systems? In our new post, Dmitry Kochetkov explores this question and shows how generative AI is reshaping copyright and the future of scholarly publishing. Read more 👉 www.leidenmadtrics.nl/articles/cop...

Together with colleagues from @dorassessment.bsky.social, @cwtsnl.bsky.social, and @sciencecouncil.bsky.social, @asapbio.bsky.social hosted a workshop to identify and advance joint actions to strengthen the research assessment and publishing reform movements. Learn more: asapbio.org/internationa...

📣 Upcoming seminar: 'Social and epistemic inequalities in science: insights from a multi-method study of forest research', with Nelius Boshoff (Stellenbosch University) and Susanne Koch @tum.de. 📅 Friday, 5.12.2025 | 3:00-4:15 PM (CET) 📌 Online & at CWTS www.universiteitleiden.nl/en/events/20...

🎓 We are delighted to announce that our colleague @sarahderijcke.nl, Professor of Science, Technology & Innovation Studies at CWTS, has been appointed as Rector Magnificus of Leiden University. We wish Sarah all the best in her new role at our university! www.universiteitleiden.nl/en/news/2025...

🎈 Time flies! Exactly one year ago today @rorinstitute.bsky.social and @aimosinc.bsky.social launched MetaROR, a platform to publish metaresearch through the publish-review-curate approach. Over the course of the year, we published 28 articles reviewed by 59 different reviewers. [1/3]

Very proud of @eleonoradagiene.bsky.social. It was a great pleasure to supervise her PhD research!

🎓 Last week, Dr. Eleonora Dagiene successfully defended her PhD thesis titled 'Quantitative research assessment and its unintended consequences' at Leiden University. Congratulations on this amazing achievement!! 🥂 www.universiteitleiden.nl/en/news/2025...

🌎 What does the withdrawal of the US from UNESCO mean for Open Science and Open Science infrastructure? While much is still unclear, @loubezuidenhout.bsky.social and Jon Verriet from @unesconl.bsky.social argue that the implications could be profound. www.leidenmadtrics.nl/articles/the...

Work by @rorinstitute.bsky.social project team has been peer reviewed openly on the @metaror.bsky.social platform. Nice demonstration of the commitment of RoRI colleagues to MetaROR's publish-review-curate model!

📣 This Friday, we will have another seminar: @nathanaelsheehan.bsky.social from TU Munich will give a talk on 'Metascience of Past, Present, & Future'. 🎧 Make sure to join! 📅 Friday, 7.11.2025 | 3:00-4:15 PM (CET) 📌 Online & at CWTS www.universiteitleiden.nl/en/events/20...

📰 Opinion piece (in Dutch) in the Dutch newspaper Het Financieele Dagblad by our scientific director @ludowaltman.bsky.social. Reacting to an earlier opinion piece, he argues for why universities are right to step away from the big commercial university rankings 👇

Very much looking forward to my participation in this webinar on Wednesday, together with four impressive colleagues: Anna Hatch, @rnls.bsky.social, @catmacos.bsky.social and @richardsever.bsky.social @cwtsnl.bsky.social @metaror.bsky.social

1/2 📊 @cwtsnl.bsky.social published the 2025 release of its Leiden Ranking Open Edition: a real step toward open research information. Built on OpenAlex, it: • Uses transparent, reusable data • Includes national & regional publishing (not only “core” journals)...

📄 New scoping review: "The Contributions of Open Science to Research Culture", a collaboration between the Know Center and CWTS that was commissioned by @scienceeurope.org. 📚 Find out more in the news item on our website 👉 tinyurl.com/bdd6jw96 @alexrushforth.bsky.social

Very proud of the improvements made by the Leiden Ranking team to the Open Edition of the ranking. This demonstrates our commitment at CWTS to @barcelonadori.bsky.social and the open research information transition. Great work by @neesjanvaneck.bsky.social and the rest of the team!

Commercial vs. #opendata for reseach information in its purest form. Very selective vs. inclusive (publications, universities). #researchassessment

📊 The CWTS Leiden Ranking 2025 is online! 🎉 This time, we have released not one, but two editions: the Traditional Edition and the Open Edition. www.leidenranking.com

🏛️ New call for proposals and report by the King Baudouin Foundation, with contribution by CWTS to identify research on mental health, areas of strong research activity and potential gaps: Call for proposals 👉 tinyurl.com/n6c3dbva Full report 👉 tinyurl.com/37uxdsaz Methods 👉 tinyurl.com/5hxpyznh

📰 Quantitative research on science communication requires suitable data. When it comes to academic press releases, that data is scarce. In a new paper, we introduce a dataset of more than 500,000 press releases published on @eurekalert.bsky.social. doi.org/10.1038/s415...

🤝 Amid international concerns over the China Scholarship Council, our newest blog's authors Qianqian Xie & Alfredo Yegros look at the data. They reveal trends, collaborations and broader implications, and ultimately argue for a "balanced, evidence-based approach". 👇 Read it now on Leiden Madtrics

🔗 See the dashboard here: public.tableau.com/app/profile/... This work is part of the UnMiSSeD (Understanding Misinformation and Science in Societal Debates) research project. It's led by Dr Vincent Traag @vtraag.bsky.social from CWTS | Leiden University @cwtsnl.bsky.social 2/8

Altmetric data in action: A new public dashboard highlights misinformation in #SocialMedia about #COVID19 & scientific research. Using @altmetric.com data for 400 million+ X/Twitter posts, the UnMiSSeD dashboard has assigned a “misinformation score” to various elements in the X posts. 1/8

📣 Special seminar on 'Perspectives on the evaluation of science', with Emanuel Kulczycki, @alesiazuccala557.bsky.social, and Jochen Gläser. 🎧 Make sure to join! 📅 Friday, 31.10.2025 🕐 1:00-3:00 PM (CET) 📌 Online & at CWTS More information 👉 www.universiteitleiden.nl/en/events/20...

Also very nice to see the value of the open peer review organized by @cwtsnl.bsky.social for the STI 2023 conference! www.leidenmadtrics.nl/articles/pre...

@crossref.bsky.social is a crucial source of open bibliographic metadata for articles published in scientific journals, but how complete is its metadata on preprints? In our latest blog post, @neesjanvaneck.bsky.social and @ludowaltman.bsky.social investigate 👇 Read it now on Leiden Madtrics

Get involved in an Open Science Monitor for the Netherlands! A consortium with @cwtsnl.bsky.social and Dialogic, funded by us, is developing a framework and dashboard in co-creation with the community. Your input is highly appreciated: www.openscience.nl/en/news/deve...

📄 We have a new blog post! Read it below 👇

🌟 RoRI is growing! We’re delighted to welcome nine new colleagues across UCL and CWTS (Leiden University), strengthening our work in metascience, AI, research assessment, and science policy. Read more about our new team members and their work here: researchonresearch.org/rori-welcome...

📢 New reviewed preprint, published by @elife.bsky.social at doi.org/10.7554/eLif.... We study two effects in science funding across 14 different funding programmes from 6 research funders across Europe and North America: (1) The Matthew effect; and (2) and the early-career setback effect. 🧵1/8

🎓 Congrats to @utawehn.bsky.social on her inaugural lecture at @unileiden.bsky.social on Monday! 💡 She highlighted the importance of long-term collaboration between civil society, government & academia in #CitizenScience. 📖 Full lecture 👉 scholarlypublications.universiteitleiden.nl/handle/1887/...

🎙️ "Are we nearly there yet?" Our colleague @alexrushforth.bsky.social joined the very first episode of the podcast series Fairly Recognised by the Dutch Recognition and Rewards programme to discuss the role of academics in research evaluation. Tune in! 👉 sanlifaez.substack.com/p/are-we-nea...

🗣️Join our colleagues @loubezuidenhout.bsky.social & @kathleen-gregory.bsky.social for an 'unconferenced style' workshop on strengthening #OpenScience against geopolitical pressures. 📅Thursday 6 November 2025 09:00-18:30 (CET) 📌Leiden NL (in person only) 👉 www.universiteitleiden.nl/en/events/20...

1/2 Honoured to be shortlisted for the Leo Waaijers Open Science Award 🏆✨ This recognises our work toward open, trusted, high-quality research information Thanks to @ludowaltman.bsky.social (@unileiden.bsky.social @cwtsnl.bsky.social), @msphelps.bsky.social & Cameron Neylon for shaping the vision

Very much looking forward to this event! @metaror.bsky.social @asapbio.bsky.social @rorinstitute.bsky.social @aimosinc.bsky.social @cwts.nl

Excited to work with a wonderful group of international colleagues to promote openness of publication metadata in negotiations with publishers! @cwts.nl

We need good practices for DOI registration for publish-review-curate platforms like @metaror.bsky.social and others. @andre-brasil.bsky.social and I wrote a blog post about this: doi.org/10.64000/76j... Together with @crossref.bsky.social we hope to receive input from the community on this issue!

🎉 On Monday, 13 October at 4 pm (CEST), our colleague @utawehn.bsky.social will deliver her inaugural lecture "Making Participation Matter? Citizen Science for Sustainability and Governance". 👥 You can join the livestream or attend in person. Register here 👉 universiteitleiden.nl/en/events/20...

Very excited about the partnership between @barcelonadori.bsky.social and @oa2020.org to work together on advancing openness of publication metadata in publisher negotiations! Interested to learn more? Join next Thursday's OA2020 webinar. Registration: eu02web.zoom.us/meeting/regi... @cwts.nl

📣 The first research seminar of the season! Madhan Muthu will talk about "Open access in India: A trajectory of opportunities, missteps, and future potential". 🎧 Make sure to join! 📅 Friday, 26.9.2025 | 3:00-4:15 PM (CEST) 📌 Online & at CWTS www.universiteitleiden.nl/en/events/20...

Our @cwts.nl PhD candidate Narmin Rzayeva chose to submit her most recent article, co-authored with @stephenpinfield.bsky.social and me, to MetaROR. The article presents an analysis of the adoption of preprinting across disciplines and regions. Glad to see the feedback provided by two reviewers!

📢 New RoRI paper out in Science & Technology Studies The study explores how 8 research funders navigate the ambiguous role of “excellence” - not simply as a matter of fact, but increasingly as a matter of concern requiring reconfiguration: sciencetechnologystudies.journal.fi/article/view...

"Much of what shapes a scientific paper never sees the light of day." RoRI's André Brasil writes about MetaROR (MetaResearch Open Review) and opening the black box of peer review in the inaugural issue of REACH by @sci-integrity.com: www.sci-integrity.com/reach-inaugu...

📢 Transparency in AI use in academia is urgently needed. In this blog post, @serhiinazarovets.bsky.social, Natalia Tsybuliak, Jaime A. Texeira da Silva & @yanasychikova.bsky.social introduce GAIDeT - a practical taxonomy for declaring AI use in research. www.leidenmadtrics.nl/articles/gai...

📄 Facing pressures to stay competitive, researchers publish ever more, often at the cost of quality. Sagartirtha Chakraborty shows how this situation compares to a prisoner’s dilemma, explains the connection with predatory journals, and outlines solutions. www.leidenmadtrics.nl/articles/aca...

📝 Today, the team behind the GLOBAL reporting guideline invites researchers who are preparing or reviewing a bibliometric article to take part in a pilot test of the guideline. 👇 Find more information in the article below [1/2]