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Rodrigo Costas

@rodrigocostas.bsky.social
1.1K followers 194 following 4 posts

Senior researcher in #bibliometrics, #informetrics & #scientometrics at the Centre for Science and Technology Studies (CWTS) Also at social.cwts.nl/@rodrigocostas ORCID: orcid.org/0000-0002-7465-6462

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Reposted by Rodrigo Costas
Barcelona Declaration on Open Research Information @barcelonadori.bsky.social · 22/06/2026
¡𝐇𝐨𝐥𝐚 𝐂𝐡𝐢𝐥𝐞! 🇨🇱 La Declaración de Barcelona participará en el Foro Ciencia Abierta de la Universidad de Playa Ancha, el 23 de junio. Paulina Peña (UDP,) @rodrigocostas.bsky.social (@cwts.nl) y Bárbara Rivera López conversarán sobre información de investigación abierta y evaluación científica.
Promotional graphic for an Open Science forum hosted by InES Ciencia Abierta at the University of Playa Ancha. The design features a purple background with yellow and white text announcing the event “Hacia una cultura institucional de conocimiento abierto: gestión, monitoreo y evaluación de la actividad científica,” taking place on Tuesday, 23 June, from 15:00 to 16:30 CLT. A line drawing map of Chile highlights Valparaíso with a location pin and the message “Join us in Valparaíso!”. The logo of the Barcelona Declaration on Open Research Information appears in the lower left corner.
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Barcelona Declaration on Open Research Information @barcelonadori.bsky.social · 26/05/2026
We know who cites research. But do we know who funds it? 💰 Today, the Barcelona Declaration WG on Funding Metadata is publishing 𝐈𝐦𝐩𝐫𝐨𝐯𝐢𝐧𝐠 𝐭𝐡𝐞 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐨𝐟 𝐎𝐩𝐞𝐧 𝐅𝐮𝐧𝐝𝐢𝐧𝐠 𝐌𝐞𝐭𝐚𝐝𝐚𝐭𝐚: 𝐀 𝐂𝐚𝐥𝐥 𝐭𝐨 𝐀𝐜𝐭𝐢𝐨𝐧 and a companion background document. 🔗 barcelona-declaration.org/news/2026052...
barcelona-declaration.org
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CWTS | Leiden University @cwts.nl · 19/05/2026
🌎 The @multiobs.bsky.social at the University of Campinas, Brazil offers eight postdoctoral positions, led by our colleague @rodrigocostas.bsky.social. Find out more in the post below! 👇
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Cassidy R. Sugimoto @crsugimoto.bsky.social · 18/05/2026
Please apply to come work with me as a postdoctoral research on this fabulous international project! I will be co-leading WP5 - STI diplomacy and science-policy dynamics!
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Rodrigo Costas @rodrigocostas.bsky.social · 18/05/2026
This is a great opportunity to work with a wonderful international team on topics related with Science and Technology Indicators! #scientometrics #bibliometrics
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Reposted by Rodrigo Costas
The OpenAIRE Graph @openairegraph.bsky.social · 17/02/2026
The #OpenAIREGraph joins #ORION, a coordinated effort to making #OpenResearch information combinable and actionable at scale, reducing duplication & easing pressure on #APIs. 🔗 Read more on @upstreamblog.bsky.social: doi.org/10.54900/2pn... 🔗 Learn more about ORION: orion-dbs.community
doi.org
Sharing the load: Building a collective to support open research information online
Can we share resources and burdens to make available key open research information resources in actionable and connectable form in the cloud? Through sharing processes and systems, is it possible, ove...
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Bianca Kramer @msphelps.bsky.social · 16/02/2026
We are keen to coordinate with all who are interested in supporting a community effort towards availability and reusability. (including addressing issues around the Google-shaped 🐘 in the room!) Blogpost: doi.org/10.54900/2pn... Website: orion-dbs.community/blog/
orion-dbs.community
News & Tutorials – orion-dbs
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Reposted by Rodrigo Costas
CWTS | Leiden University @cwts.nl · 16/02/2026
🌌 Today, ORION was launched, an initiative to bring together Open Research Information (ORI) resources in a cloud-based solution. CWTS is involved with multiple colleagues, including our data science team. 💻 Check out the initiative's website and blog post! 👇
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Rodrigo Costas @rodrigocostas.bsky.social · 16/02/2026
Today we launch ORION: a coordinated initiative to make open research information more inclusive, accessible and democratic. Our experience with GoogleBigQuery support collaborative and community solutions for ORI infrastructures, increasing sustainability & resilience. doi.org/10.54900/2pn...
doi.org
Sharing the load: Building a collective to support open research information online
Can we share resources and burdens to make available key open research information resources in actionable and connectable form in the cloud? Through sharing processes and systems, is it possible, ove...
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Reposted by Rodrigo Costas
Najko Jahn @najko.bsky.social · 16/02/2026
Today we're starting ORION, an effort to coordinate making #openresearchinformation resources available, with an initial focus on Google BigQuery. We are keen to coordinate with all who are interested in supporting a community effort towards availability and reusability! doi.org/10.54900/2pn...
doi.org
Sharing the load: Building a collective to support open research information online
Can we share resources and burdens to make available key open research information resources in actionable and connectable form in the cloud? Through sharing processes and systems, is it possible, ove...
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Reposted by Rodrigo Costas
CWTS | Leiden University @cwts.nl · 28/11/2025
📣 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...
universiteitleiden.nl
Social and epistemic inequalities in science: insights from a multi-method study of forest research
Inequalities in science have come under scrutiny in the last decade. Different strands of science studies, including scientometrics and sociological works, have examined geographic and gender inequali...
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Reposted by Rodrigo Costas
Barcelona Declaration on Open Research Information @barcelonadori.bsky.social · 30/10/2025
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)...
leidenranking.com
CWTS Leiden Ranking
The CWTS Leiden Ranking offers important insights into the scientific performance for major universities worldwide. Select your preferred indicators, generate results, and explore the performance of u...
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Ludo Waltman @ludowaltman.bsky.social · 29/10/2025
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!
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Reposted by Rodrigo Costas
CWTS | Leiden University @cwts.nl · 29/10/2025
🔎 We invite you to take a look at the new release and explore all the innovations for yourself 👉 www.leidenranking.com
leidenranking.com
CWTS Leiden Ranking
The CWTS Leiden Ranking offers important insights into the scientific performance for major universities worldwide. Select your preferred indicators, generate results, and explore the performance of u...
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Reposted by Rodrigo Costas
CWTS | Leiden University @cwts.nl · 29/10/2025
📊 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
leidenranking.com
CWTS Leiden Ranking
The CWTS Leiden Ranking offers important insights into the scientific performance for major universities worldwide. Select your preferred indicators, generate results, and explore the performance of u...
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Leiden Madtrics @leidenmadtrics.bsky.social · 29/10/2025
📊 Today, the CWTS Leiden Ranking 2025 has been released. The new Open Edition marks a next step towards more open and more inclusive research analytics for universities. Our new blog post highlights the most significant developments. 👇 Read it now on Leiden Madtrics
leidenmadtrics.nl
The CWTS Leiden Ranking 2025 - More open, more inclusive, more informative
The release of the CWTS Leiden Ranking 2025 marks a next step toward more open and more inclusive research analytics for universities. This post highlights the most significant developments.
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CWTS | Leiden University @cwts.nl · 29/10/2025
✒️ We have also written a blog post to explain the updates and their implications in more detail 👉 www.leidenmadtrics.nl/articles/the...
leidenmadtrics.nl
The CWTS Leiden Ranking 2025 - More open, more inclusive, more informative
The release of the CWTS Leiden Ranking 2025 marks a next step toward more open and more inclusive research analytics for universities. This post highlights the most significant developments.
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Reposted by Rodrigo Costas
Jonathan Dudek @jo-dudek.bsky.social · 27/10/2025
📰 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...
doi.org
An open dataset of EurekAlert! press releases for science communication research - Scientific Data
Scientific Data - An open dataset of EurekAlert! press releases for science communication research
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Jonathan Dudek @jo-dudek.bsky.social · 27/10/2025
🌏 This paper has been a collaboration between Jingwen Zhang from Ningbo University, @eomalea.bsky.social from the Polytechnic University of Valencia, Alysson Fernandes Mazoni from the University of Campinas, and @rodrigocostas.bsky.social and me from @cwtsnl.bsky.social.
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Louise Bezuidenhout @loubezuidenhout.bsky.social · 10/10/2025
Want to be part of a conversation about geopolitics and Open Science? Why not join us in Leiden on the 6th of November for the workshop "Resilience in times of crisis". Registration open now (in person only). www.universiteitleiden.nl/en/events/20...
universiteitleiden.nl
Resilience in times of crisis: Strengthening Open Science against geopolitical pressures
The success of the Open Science movement relies on research products and infrastructures being open, accessible and sustainably curated. Recent global events, however, have illustrated the vulnerabili...
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Reposted by Rodrigo Costas
MIT Press @mitpress.bsky.social · 15/09/2025
QSS is now accepting articles that have gone through independent, open peer review via MetaResearch Open Review (MetaROR). The authors of an article on tracking transformative agreements through open metadata shared their experiences using MetaROR's Publish-Review-Curate (PRC) model:
openscience.nl
The MetaROR Publish-Review-Curate Model: our experience as authors | Open Science NL
As professionals working in open science and scholarly communication reform, we believe in practicing what we preach. That’s why we recently chose to publish an article using the…
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Leiden Madtrics @leidenmadtrics.bsky.social · 22/07/2025
💸 Our latest blog post describes how the research project “Tracking Research Funding Flows in the Global South” by @clacso.bsky.social, @cwts.nl & Siris Academic aims to make visible & analyze ways in which international science funding circulates. 👇 Read it now on Leiden Madtrics
leidenmadtrics.nl
Analysing research funding flows in the Global South
In a context marked by deep asymmetries in access to research resources, the research project “Tracking Research Funding Flows in the Global South” aims to make visible and analyze the ways in which i...
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Leiden Madtrics @leidenmadtrics.bsky.social · 22/07/2025
🙏 A big thank you to our contributing authors: Matías Alcántara, Mariángela Nápoli, Judith Naidorf, @rodrigocostas.bsky.social & @ismaelrafols.bsky.social
leidenmadtrics.nl
Analysing research funding flows in the Global South
In a context marked by deep asymmetries in access to research resources, the research project “Tracking Research Funding Flows in the Global South” aims to make visible and analyze the ways in which i...
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Reposted by Rodrigo Costas
MetaROR @metaror.bsky.social · 16/07/2025
👏 Thanks to our authors (Juan Pablo Bascur, @rodrigocostas.bsky.social, @suzanv.bsky.social), reviewers (@dwh.bsky.social, @essepuntato.bsky.social, Verena Weimer) & editors (@alexh.bsky.social, Kathryn Zeiler) for their contribution to (and trust in) MetaROR and the publish-review-curate model!
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Vincent Traag @vtraag.bsky.social · 04/07/2025
New preprint! 🚨 We study the interaction between misinformation and science on Twitter during COVID-19 based on ~407M tweets. Both science and misinformation featured prominently during the pandemic, but the interaction between the two has not been studied on this scale before. 🧵 (1/10)
Mapping the interaction between science and misinformation in COVID-19 tweets.
Publication from @luzuzek.bsky.social, Juan Pablo Bascur, @annabertani.bsky.social, @ricgallotti.bsky.social. This project is supported by European Media and Information Fund.

Abstract: During the COVID-19 pandemic, scientific understanding related to the topic evolved rapidly. Along with scientific information being discussed widely, a large circulation of false information, labelled an infodemic by the WHO, emerged. Here, we study the interaction between misinformation and science on Twitter (now X) during the COVID-19 pandemic. We built a comprehensive database of  407M COVID-19 related tweets and classified the reliability of URLs in the tweets based on Media Bias/Fact Check. In addition, we use Altmetric data to see whether a tweet refers to a scientific publication. We find that many users find that many users share both scientific and unreliable content; out of the  1.2M users who share science,   also share unreliable content. Publications that are more frequently shared by users who also share unreliable content are more likely to be preprints, slightly more often retracted, have fewer citations, and are published in lower-impact journals on average. Our findings suggest that misinformation is not related to a ``deficit'' of science. In addition, our findings raise some critical questions about certain open science practices and their potential for misuse. Given the fundamental opposition between science and misinformation, our findings highlight the necessity for proactive scientific engagement on social media platforms to counter false narratives during global crises.
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Ludo Waltman @ludowaltman.bsky.social · 30/06/2025
Great news: At #Metascience2025 @wellcometrust.bsky.social just announced its signature of the Barcelona Declaration on Open Research Information! Wellcome CEO John-Arne Røttingen made the important argument that open research information offers crucial evidence to support metascience. @cwts.nl
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Ludo Waltman @ludowaltman.bsky.social · 08/05/2025
Together with Fernanda Beigel, @cwtsleiden.bsky.social colleague @ismaelrafols.bsky.social offers a highly critical perspective on developments in open science. Worth a read!
Inclusiveness vs openness
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Leiden Madtrics @leidenmadtrics.bsky.social · 08/05/2025
🌏 In our latest blogpost, @ismaelrafols.bsky.social and Fernanda Beigel discuss whether open science actually fulfils its expectations of leading to more equity and improving research's societal impact. 👇 Read it now on Leiden Madtrics
leidenmadtrics.nl
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...
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Nicolas Robinson-Garcia @nrobinsongarcia.bsky.social · 21/04/2025
It took some time, but here it is! "The use of informetric methods to study diversity in the scientific workforce: A literature review" now in QSS 🛰️ w @torressalinas.bsky.social @carmencs.bsky.social @rodrigocostas.bsky.social & Z. Chinchilla 🎆 doi.org/10.1162/qss_... 🎆
doi.org
The use of informetric methods to study diversity in the scientific workforce: A literature review
Abstract. This literature review examines the application of informetric methods to assess diversity within the scientific workforce, focusing on recent advances in author name disambiguation, researc...
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Bianca Kramer @msphelps.akademienl.social.ap.brid.gy · 07/02/2025
Excited to announce I've been appointed Executive Director of the Barcelona Declaration @BarcelonaDORI , (alongside my other consulting activities). We have funding for the next 3 years and will soon discuss the creation of a governance board […]
akademienl.social
Original post on akademienl.social
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Leiden Madtrics @leidenmadtrics.bsky.social · 14/01/2025
📢 New Blog Post! Camilla Lindelöw and elinevdw.bsky.social share some preliminary findings from an exploratory study on independent researchers 📚, using OpenAlex data. Read the full post here 👇 www.leidenmadtrics.nl/articles/ind...
leidenmadtrics.nl
Independent researchers: traces in bibliographic data
This blog post presents preliminary findings from an exploratory study on independent researchers, using OpenAlex data to trace their research interests and career paths. We also discuss our experienc...
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Ángel M. Delgado-Vázquez @amdelvaz.bsky.social · 25/11/2024
It is urgent that all authors retain at least part of the copyright. In Spain it is already mandatory for those financed with public funds, to be able to deposit the accepted version in institutional or thematic repositories. Metadata should always be open.
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Rodrigo Costas @rodrigocostas.bsky.social · 23/11/2023
At CWTS we are reorganizing our knowledge agenda into three focal areas www.leidenmadtrics.nl/articles/the.... Here is an introduction to our Focal Area Engagement & Inclusion! www.leidenmadtrics.nl/articles/int... Feedback, comments, collaborations are most welcome! Reach out if you are interested!
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Jens Peter Andersen @ipoga.bsky.social · 10/11/2023
Highly interesting study from the ScholCommLab on how much funding is spent on APCs at the Big 5 journal publishers. It’s a lot, it mostly goes to Springer-Nature and especially Scientific Reports and Nature Communications: direct.mit.edu/qss/article/...
direct.mit.edu
The Oligopoly’s Shift to Open Access. How the Big Five Academic Publishers Profit from Article Pro...
Abstract. This study aims to estimate the total amount of article processing charges (APCs) paid to publish open access (OA) in journals controlled by the five large commercial publishers Elsevier, Sa...
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Sarah de Rijcke @sarahderijcke.nl · 12/10/2023
Does science need heroes or does it need to reform? I elaborate on this in a blog post. Idolizing heroes can worsen #bias, #inequality & #competition. Yet, it does require good #leadership to ignite structural change www.leidenmadtrics.nl/articles/doe...
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