The state of preprinting in Europe and the Netherlands

To accelerate the sharing of scientific knowledge, researchers in many disciplines increasingly publish their work on preprint servers. In this post, Ludo Waltman and colleagues discuss the state of preprinting in Europe and the Netherlands.

Ludo Waltman, Narmin Rzayeva and Stephen Pinfield • May 22, 2025

Setting the course: our first two years in the focal area Evaluation & Culture

The Evaluation and Culture focal area at CWTS is dedicated to studying, discussing, and advocating for renewed forms of scholarly communication, fair research evaluation, and inclusive research cultures. This blog post offers a reflection on our activities and progress over the past two years.

Evaluation & Culture • May 15, 2025

The contested field of Open Science: a debate through the lens of inclusion

Most implementations of Open Science do not fulfil the expectations that Open Science will lead to more equity and improve the societal impact of research. We discuss these worrying trends through the lens of inclusion.

Fernanda Beigel and Ismael Rafols • May 08, 2025

Advancing our Understanding of Systematic Manipulation & Paper Mills: Wiley & CWTS Partnership

The Centre for Science and Technology Studies at Leiden University, in collaboration with the publishing company Wiley, is opening a new position for a PhD candidate to carry out research on paper mills and related forms of systematic manipulation in publishing.

Wolfgang Kaltenbrunner, Catriona J Maccallum, Stephen Pinfield, Mike Streeter and Ludo Waltman • April 15, 2025

Strengthening science through diversity

Science in the US is under attack, with banned words, funding cuts, and threats to diversity, equity & inclusion and climate science. These actions harm science. CWTS’ focal areas respond, aligned with their mission to improve how science is practiced, governed, and serves society.

Information & Openness, Engagement & Inclusion and Evaluation & Culture • April 02, 2025

Assessment reform and publishing reform need to go hand in hand

The need to reform research assessment and scientific publishing practices is widely recognized. However, Ludo Waltman argues that the assessment and publishing reform movements will be successful only if they manage to align their agendas.

Ludo Waltman • March 26, 2025

From vision to action: our first two years in the focal area Information & Openness

The Information & Openness focal area at CWTS is dedicated to studying, discussing and advocating for the openness of research information. In this blog post, we look back and reflect on our first two years.

Information & Openness • March 20, 2025

Metrics sonification as a new way to convey bibliometric data

When it comes to making sense of data, visualizations rule. But what about translating data into sound? This blog post explores the origins of ‘data sonification’ and its many applications in science and demonstrates how even bibliometric data can be turned into sound.

Lutz Bornmann • March 18, 2025

Monitoring Open Science in The Netherlands

Support for Open Science in the Netherlands has led to institutional programs across universities to promote open research practices. This blog post discusses a workshop where those program representatives met to explore opportunities for monitoring and evaluating Open Science within Dutch research.

Louise Bezuidenhout, Thed van Leeuwen and Francesca Morselli • February 19, 2025

Beyond the dissertation: Reshaping PhD trajectories at Leiden University