𝐀 𝐦𝐚𝐣𝐨𝐫 𝐦𝐢𝐥𝐞𝐬𝐭𝐨𝐧𝐞 𝐟𝐨𝐫 𝐨𝐩𝐞𝐧 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧🚀 This turns commitment into institutional change, and sends a signal that open research information can support transparent, reproducible, and inclusive research analytics. Congratulations to @cwts.nl, an initiator of the Barcelona Declaration! 👏

CWTS | Leiden University@cwts.nl · 2w ago

Today we announce a next step in our transition to open research information: CWTS will discontinue the use of Web of Science data, both in the Leiden Ranking and in the services that we offer to external organisations. Read more on our website 👉 edu.nl/vnepv @barcelonadori.bsky.social

Today we announce a next step in our transition to open research information: CWTS will discontinue the use of Web of Science data, both in the Leiden Ranking and in the services that we offer to external organisations. Read more on our website 👉 edu.nl/vnepv @barcelonadori.bsky.social

📣 New 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 opportunity at CWTS to conduct original research on how Public Engagement Activities (PEAs) can be better recognised and monitored within #OpenScience. The project is funded by @opensciencenl.bsky.social 🔗 Apply here until 𝟳 𝗔𝘂𝗴𝘂𝘀𝘁 👉️ careers.universiteitleiden.nl

Do citation counts really capture all citations of a document? In our 🆕 blog post, Paul Donner shows the different ways in which citation counts can vary and proposes a more nuanced way of presenting them: 𝐜𝐢𝐭𝐚𝐭𝐢𝐨𝐧 𝐜𝐨𝐮𝐧𝐭 𝐫𝐚𝐧𝐠𝐞𝐬. Read it here 👉️ www.leidenmadtrics.nl/articles/the...

The case for citation count ranges

Citation counts have a prominent role in bibliometrics, but do they really represent all citations of a document? Paul Donner shows the different ways in which citation counts can vary and proposes a ...

leidenmadtrics.nl

At CWTS, we see scholarly publishing as a collective responsibility. In our Scholarly Communication Policy, @inter-apero-bility.bsky.social, @ludowaltman.bsky.social & Wolfgang Kaltenbrunner reflect on this and aim to encourage other institutions to implement a similar approach. Read it here 👇

Scholarly communication as a collective responsibility

CWTS has developed a Scholarly Communication Policy that treats publishing as a collective responsibility rather than an individual choice. In this blog post, we introduce the policy, reflect on its c...

leidenmadtrics.nl

Caroline S. Wagner was a highly regarded scholar in the field of science and technology policy. In his obituary, Paul Wouters reflects on her impressive contributions to research on science policy, the globalization of research, international collaboration, and scientometrics.

In memoriam Caroline S. Wagner

Caroline S. Wagner (1955-2026) was a highly regarded scholar in the field of science and technology policy. Paul Wouters reflects on her impressive contributions to research on science policy, the glo...

leidenmadtrics.nl

📣 New 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 opportunity at CWTS to develop a monitoring and evaluation framework, repository of enabling actions, and evidence base for #CitizenScience & #SocietalEngagement. Funded by the @opensciencenl.bsky.social. 🔗 Apply here until 𝟮𝟱 𝗝𝘂𝗹𝘆 👉️ careers.universiteitleiden.nl

In a recent piece, @vtraag.bsky.social writes about how finding equal research funding rates between men and women doesn't necessarily mean the academic system is free of gender bias: researchonresearchinstitute.substack.com/p/we-found-n...

🎓 'Research culture' has become a key concept, but what it means exactly often remains unclear. 🔎 In our new blog post, Wolfgang Kaltenbrunner proposes a way for giving the concept greater analytical substance and proposes to consider research culture as a politics of uncertainty.

Research culture as a politics of uncertainty

As research culture increasingly becomes an object of governance, it also raises important conceptual questions. Based on a pitch at the Research Cultures in Transition Roundtable (STS NL 2026, Univer...

leidenmadtrics.nl

🤝Last Thursday, we visited the Rathenau Instituut for an inspiring meeting to connect and exchange ideas. Breakout sessions covered: 🔹 Geopolitics, international mobility, and research security 🔹 Academic freedom and societal impact 🔹 Generative AI in research, funding, and scholarly publishing

A new RoRI study finds no gender differences in funding rates – but warns equal numbers can mask bias, with women representing only 36% of all applicants. Read the paper here: rori.figshare.com/articles/pre...

📢 New workshop: 𝘌𝘯𝘩𝘢𝘯𝘤𝘪𝘯𝘨 𝘌𝘲𝘶𝘪𝘵𝘢𝘣𝘭𝘦 𝘊𝘰𝘭𝘭𝘢𝘣𝘰𝘳𝘢𝘵𝘪𝘰𝘯𝘴 𝘵𝘩𝘳𝘰𝘶𝘨𝘩 𝘖𝘱𝘦𝘯 𝘚𝘤𝘪𝘦𝘯𝘤𝘦, co-organized by @ubleiden.bsky.social and @loubezuidenhout.bsky.social. 📅 14 September 2026, 9:30-18:00 📍 PLNT, Leiden For more information and to sign up, please see our website 👉 www.universiteitleiden.nl/en/events/20...

Driven by AI surges and tight budgets, global science has become an unsustainable competition machine. @ludowaltman.bsky.social & co-authors argue we must move away from micro-managing individual survival towards strategic leadership: researchonresearchinstitute.substack.com/p/from-hyper...

From hyper-competition to strategic leadership

The role of funders and research institutions in 21st-century science

researchonresearchinstitute.substack.com

📢 New RoRI Report: The Future of Peer Review Peer review is at a breaking point. Strained by hyper-competition & AI, we need system-wide reform. Read here: rori.figshare.com/articles/report/The_Future_of_Peer_Review_A_system-wide_perspective/32685351?file=65684898

In this panel I will discuss some of the ideas developed in the RoRI Future of Peer Review report, to be published early next week! @rorinstitute.bsky.social @cwts.nl

Charleston Hub@chashub.bsky.social · 2mo ago

What if the journal article is no longer the center of scholarly communication? 👉 Join us virtually to hear more and be part of the discussion! bit.ly/4or88JG Panelists: @tobyabgreen.bsky.social @johanrooryck.bsky.social @ludowaltman.bsky.social @stockerm.bsky.social

📢 Join an upcoming webinar organised by the DST-CPR, IISc, Bangalore. @ludowaltman.bsky.social will discuss the transition from proprietary to open research information sources and share lessons from @cwts.nl 📅 19 June 2026 🕒 10:00 UTC / 12:00 CEST / 15:30 IST 🔗 tinyurl.com/yevwpavc

Congratulations @aschniedermann.bsky.social and well deserved! 📰 Read the news item for more information: 👉 www.universiteitleiden.nl/en/news/2026... 💡Read Alexander's PhD thesis:👉 scholarlypublications.universiteitleiden.nl/handle/1887/...

Alexander Schniedermann@aschniedermann.bsky.social · 2mo ago

#PhDone What a day and what a great way to celebrate the end of my long journey. Many thanks to everyone who was part of this journey! I still have to process everything. #Dissertation @academic-chatter.bsky.social #AcademicLife #AcademicChatter @cwts.nl @unileiden.bsky.social #DZHW

Our preprint was also featured in a short piece on citations to China by @economist.com www.economist.com/science-and-...

Too much Chinese science is ignored by the West

A bad reputation and cultural ignorance are probably responsible

economist.com

Vincent Traag@vtraag.bsky.social · 2mo ago

💡 Belated new preprint alert! We analysed geographical biases in scientific collaboration and citations. We find that distance continues to shape collaboration, but citations less so. Both show country-level biases. How about US-China relations? 🧵 arxiv.org/abs/2604.01602

💡 Belated new preprint alert! We analysed geographical biases in scientific collaboration and citations. We find that distance continues to shape collaboration, but citations less so. Both show country-level biases. How about US-China relations? 🧵 arxiv.org/abs/2604.01602

📣 New research seminar: @batoolmm.bsky.social from @epcc.bsky.social will give a talk on 𝘙𝘦𝘵𝘩𝘪𝘯𝘬𝘪𝘯𝘨 𝘖𝘱𝘦𝘯 𝘚𝘤𝘪𝘦𝘯𝘤𝘦 𝘵𝘩𝘳𝘰𝘶𝘨𝘩 𝘥𝘦𝘱𝘦𝘯𝘥𝘦𝘯𝘤𝘺 𝘵𝘩𝘦𝘰𝘳𝘺, followed by responses from Ana Parrón Cabañero and Rosalba Icaza. 🎧 Make sure to join! 📅 Friday, 19/6/2026 | 3:00-4:15 PM (CEST) 📌 Online only

Rethinking Open Science through dependency theory

Dependency theory explains how resources systematically flow from the “periphery

universiteitleiden.nl

@alexrushforth.bsky.social, Paul Wouters, and @ludowaltman.bsky.social (RoRI & @cwts.nl) warn that national research assessment systems face a dual legitimacy crisis: AI is polluting published literature and infiltrating evaluation itself: researchonresearchinstitute.substack.com/p/can-nation...

Can national research assessment systems survive the AI storm?

Different types of national assessment systems face different threat levels

researchonresearchinstitute.substack.com

🎓 One-day workshop by and for PhD candidates: How can we build more flexible doctoral trajectories that acknowledge Open Science practices and the various outputs and activities that PhD candidates engage with? 📅 25 Sept 2026, 09:45-18:45 📍Leiden (in person only)

Recognising the diversity of PhD talents: embedding Open Science into PhD trajectories

Considering that 66% of PhD graduates that earn their degree from Dutch institutions work outside academia, a more flexible PhD trajectory that recognizes the full scope of doctoral work and equip can...

universiteitleiden.nl

🚨 New 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 position at CWTS on Citizen Science and Public Trust in Science! The postdoc will conduct original research about how Citizen Science relates to public trust and to equitable research practices in environmental science. Deadline for application: 18 June Learn more 👇

Are paper mills really the work of a few bad actors? @realjoonha.bsky.social joins us to discuss how publication pressures, incentives, and academic systems shape the paper mill phenomenon. Register free; open to all: www.eventbrite.co.uk/e/the-kings-...

🚨 New 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 opportunity at CWTS on Evaluating Open Science Impact and Research Culture Change, working closely with Alex Rushforth and Louise Bezuidenhout. Apply until 18 June 👇 careers.universiteitleiden.nl/job/Postdoct... @leidensocial.bsky.social @opensciencenl.bsky.social

The 2026–2028 strategic plan for the Engagement & Inclusion focal area at @cwts.nl is published! Read the blogpost for an overview of their vision and strategic directions to foster inclusive knowledge systems that engage with societal needs and challenges. 👉 www.leidenmadtrics.nl/articles/foc...

Engaging with societal challenges through diverse knowledge systems

How can we foster diverse and inclusive knowledge systems that genuinely engage with societal needs and challenges? This question lies at the heart of the new strategy of the CWTS Focal Area Engagemen...

leidenmadtrics.nl

We are excited to announce the next steps we have agreed with @openaire.bsky.social to deepen our collaboration 🤝 We will work together to advance and improve open research information and develop open research analytics for the European research landscape. Read more in our news item 👇

CWTS and OpenAIRE strengthen collaboration

CWTS and OpenAIRE are delighted to announce the next steps we have agreed to take to deepen our relationship and strengthen our collaboration.

universiteitleiden.nl

✨ We’re excited to share a new publication by our colleague @altibel.bsky.social and other researchers from @unileiden.bsky.social and @solid-research.bsky.social on the links between Dutch universities and the tobacco industry. 🔗 Read more here: www.universiteitleiden.nl/en/news/2026...

What can universities learn from their ties with the tobacco industry?

Researchers from Leiden University and Solid Sustainability Research have published a new study in PLOS Climate on the links between Dutch universities and the tobacco industry. Through this work, the...

universiteitleiden.nl

🌎 Scientific collaboration across disciplines is widely seen as necessary for tackling complex problems, but does it also translate into scientific prestige? In our new blog post, @jcortesanchez.bsky.social explores this question. www.leidenmadtrics.nl/articles/the...

The mosaic of science: When does disciplinary diversity translate into prestige?

Scientific collaboration across disciplines resembles a mosaic, with each piece contributing to a composition more coherent than any fragment on its own. This diversity is widely seen as necessary for...

leidenmadtrics.nl