Losner Briones

Book cover with a green gradient background for "The Organism–Environment Pairing: A Historical and Philosophical Reappraisal" by Alejandro Fábregas-Tejeda (MIT Press, 2026). The book series label “The Vienna Series in Theoretical Biology” appears at the top. The title is set in large, bold lettering using three colors: white (“The” and “Pairing”), warm yellow (“Organism–”), and bright green (“Environment”). The subtitle appears below in smaller white text, and the author’s name is printed at the bottom. In the lower right, a monarch butterfly (Danaus plexippus) rests on clusters of pink milkweed flowers. Behind it, a large pale-green butterfly silhouette fills the background; its outline follows the shape of a red lacewing butterfly (Cethosia biblis). The layered butterflies visually echo the book’s central idea of an organism–environment pairing.

What a joy to finally share the cover of The Organism–Environment Pairing (@mitpress.bsky.social)! The 📗 will be out on May 12 📆! I look forward to the conversations it sparks among scientists, philosophers & historians! mitpress.mit.edu/978026205282... #evosky #histsci #philsci #philsky #booksky 🌱🐋

📢 New publication by two members of the BioKoinos Group: Carolina Cuadrado Bastos (UCM) and Laura Nuño de la Rosa (CSIC). 👩‍💻🏞️ This paper addresses the question on when is (nonepistemic) value influence legitimate in climate change research. 💻 +Info: rdcu.be/e669R

Lessons for human science measurement from the quantification of earthquake size It remains controversial whether the human sciences can quantify the phenomena they study. The feasibility of quantification is usually assessed by id…

Now out: How did earthquakes come to have a (quantitative) size? How can we quantify without experimental control? @cristianlarph.bsky.social and I answer both questions and show their implications for human science measurement.
www.sciencedirect.com/science/arti...
#philsci #histsci #seismology

Perspectivas sobre los contratos Ramón y Cajal en filosofía

▶️ Ya está disponible la grabación de la sesión sobre las perspectivas de los contratos Ramón y Cajal en filosofía que organizamos el pasado 26 de febrero.

Nuestro agradecimiento a los participantes.

canal.uned.es/video/69a566...

Excited to share that my submission has been accepted to the 4th Lake Como INEM Summer School in Philosophy of Economics! 🙂

I'll present on measurement challenges when evaluating redistributive policies in RCT-based field experiments, focusing on the Finnish basic income experiment (2017-2018).

Happy to share that I'm starting a 3-month research stay at @tint-philosophy.bsky.social! ✨✨

Under the supervision of Jaakko Kuorikoski, I'll be working on methodological and epistemological challenges in evaluating redistributive policies like basic income within evidence-based field experiments.

CFP – Pre-conference workshop: Values in science in the rest of the world 24–25 August 2026, Helsinki – just before ENPOSS 2026 Keynote speakers: David Ludwig (Wageningen University) Karoliina Pulkkinen (University of Helsinki) The idea that social, political and ethical ...

Heading to ENPOSS this summer? Consider submitting an abstract to the pre-conf workshop organised by Inkeri Koskinen and Katherine Furman 👇 Keynotes by David Ludwig and yours truly.

blogs.helsinki.fi/valuesinscie...

Header and abstract page of an original research article in History and Philosophy of the Life Sciences (2026, volume 48, article 12) titled "Modeling versatility as the hallmark of model organisms," authored by Guido I. Prieto and Alejandro Fábregas-Tejeda. Abstract In recent years, discussions on the epistemology of model organism-based research have emerged in the philosophy of science. A key topic of discussion is how the epistemic insights gained from model organisms differ from those gained through other experimental organisms used in laboratory and field research. Here, we argue that model organisms are epistemically special due to their nature as ontogenetically changeable, standardized, and evolved material model carriers. These characteristics afford six important kinds of modeling versatility that biologists marshal in their investigations: (i) synchronic target versatility; (ii) synchronic scope versatility; (iii) diachronic target versatility; (iv) diachronic scope versatility; (v) manipulation versatility; and (vi) discovery versatility. In presenting these dimensions of modeling versatility, we also clarify key notions such as ‘representational target,’ ‘representational scope,’ and ‘representational power’ as these apply to modeling practices that involve model organisms.

It has been argued that what sets model organisms apart from other experimental 🐋🌱 is their high representational power. In our latest 📃, we argue otherwise: the hallmark of MOs lies in the dimensions of modeling versatility they afford to scientists 👇 link.springer.com/article/10.1... #philsci #HPS

Workshop poster with an image of a hand holding an organ-on-a-chip. (Title) Understanding Challenges and Opportunities for the Transition Beyond Animal Experimentation in Research and Safety Testing: What‘s New? What‘s Next? Animal use in science and safety testing persists at high levels – despite decades of advocacy and innovation in alternatives. Apart from technical challenges, this also raises urgent philosophical, ethical, legal, and social-scientific issues. This two-day online workshop focuses on new perspectives that can help to understand the intersection of scientific and human obstacles that slow down transition. Join the discussions to broaden your perspective on the animal experimentation transition and help to explore pathways to a future of innovative, responsible science. Organised by Love Hansell, Radboud U; Simon Lohse, Radboud U; Nico D. Müller, U of Basel Online, 19–20 March 2026 13:30–17:00 CET each day Register by 17 March: tinyurl.com/nam-workshop

📣 Upcoming Online Workshop, 19–20 March 2026

*Understanding Challenges and Opportunities for the Transition Beyond #AnimalExperimentation in Research and Safety Testing: What‘s New? What‘s Next?*

Register by 17 March: tinyurl.com/nam-workshop

#NAM #animalethics #philsci #animalstudies #STS

Journals This is our best attempt at a comprehensive guide for journals that publish in philosophy of social science. If we have either misrepresented or omitted a journal and you are on the editorial board…

Kareem Khalifa is assembling a list of journals that either specialise or regularly publish work in philosophy of social science. A great service but I need this list to be longer! Please add to it #philsci #philsky

We are organising a pre-conference workshop on Values in science in the rest of the world in Helsinki in August, just before ENPOSS 2026. Please consider submitting an abstract!

The European Network for the Philosophy of the Social Sciences (ENPOSS) invites submissions to its 15th Conference at the University of Helsinki, 26-28 August 2026. blogs.helsinki.fi/enposshel/

Deadline for submission: 1 March, 2026

My paper on 🌱🦧 ANIMAL MEDICINE 🐜🍄, written with Cristian Saborido (office mate and tip-top philosopher of biology and medicine), is finally out in Philosophy of Science.

We offer a cool new framework for understanding medicine in different species, including our own. And it's ✨ OPEN ACCESS ✨

¡Hoy disfruté mucho presentando y discutiendo la propuesta! 🙂

Last days to submit proposals to the XIV PBCS (Madrid, 18–19 June)!

🗣️ Keynotes: Enara García (SDU), @alejandrofabregastejeda.com (KU Leuven), and José Antonio Pérez Escobar (UNED).

🌐 Details and submissions: sites.google.com/view/xivpbcs...

#PBCS2026 #philsci #philbio #philcogsci #CFA

Promotional image announcing the publication of a paper in the European Journal for Philosophy of Science. The article, classified under “Philosophy of the Biomedical Sciences,” is titled “When to recommend no experiment? Drug regulation and the institutional shaping of pursuitworthiness” and is authored by HyeJeong Han.

In her latest 📃, HyeJeong Han argues that in regulatory science (e.g., 💊 regulation), economic considerations shape decisions to halt experimentation. She shows how costs become integrated into evidential standards & impact institutionalized judgments👇 link.springer.com/article/10.1... #philsci #HPS

Our new paper (with @biotay.bsky.social) is out and on the cover story of @currentbiology.bsky.social !!!! Veronika, a Carinthian mountain cow flexibly uses a “multi-purpose tool” to scratch herself. A video and more information will follow in the comments.
www.cell.com/current-biol...

El gobierno regala dinero a los rentistas y lo presenta como una politica de vivienda ambiciosa.
Después se quejarán de que otros capitalizan la desesperación

📢 New publication by Metis members!

Claudia Picazo (UNED) and Laura Delgado (University of Lisbon) have published “Blocking meaning creation: impostor concepts and hermeneutical injustice” in Synthese (2026) 207:38.

🔗 rdcu.be/eX6bB

🔔 We're launching our Bluesky account today! Can you help us spread the word by retweeting this post? 😀

#Theoria #diamondopenaccessjournal

Starting the winter semester in a great mood: I'll be able to combine co-teaching in Philosophy of the Social Sciences with @mjbuedo.bsky.social and my first two research stays. First at @tint-philosophy.bsky.social under Jaakko Kuorikoski, and then at @vlc-lab.bsky.social with @saulpg.bsky.social ✌️

⭐ Cerramos el año con buena compañía y muchas razones para celebrar. Desde METIS, os deseamos unas felices fiestas y un excelente comienzo de año.

Wrapping up the year with great company and lots of reasons to celebrate. Warm holiday wishes from all of us at METIS. 🎄✨

New publication alert! 🚨
José Antonio Pérez Escobar (aka JAPE), the spiritual guide of METIS PhD students, has just published in EJPS!
“The making of a mathematical notion by analogy: the case of Hamiltonicity of (locally finite) infinite graphs”
🔗 link.springer.com/article/10.1...

Hi @sergiosouza.bsky.social! Thanks a lot for your interest. We can confirm that the XIV PBCS 2026 will be fully in person, so unfortunately there won't be online presentation slots this time. All the best!

And thanks, @susanamonso.com, for looping us in! 😊

Honored to be part of the organising committee for the 14th PBCS Workshop at UNED (Madrid). Mark your calendars: June 18–19, 2026. Abstracts due January 15. Details: sites.google.com/view/xivpbcs...

Looking forward to your submissions!

#PBCS2026 #philsci #philbio #philcogsci #CFA

📢 Seminario METIS #10: Mañana, Jorge Ramos (@jsramos.bsky.social) hablará sobre “La metafísica de la biología desde la práctica científica biológica’’.
🗓️ Martes, 2 de diciembre | 🕚 11:30–13:30 | 📍 Paseo Senda Rey 7, Edificio de Humanidades, Aula B 💻 Asistencia online: blogs.uned.es/metis/contact/

The European Network for the Philosophy of the Social Sciences (ENPOSS) invites submissions to its 15th Conference at the University of Helsinki, 26-28 August 2026. More info here: enposs.eu

I am happy to be part of the organization of the next Causality in the Sciences conference in Sevilla, focusing on cases from medicine. Mark your calendars for October 8-9th 2026. Deadline for abstract submission: March 8th. More details here: eventos.us.es/142286/secti...

I really enjoyed presenting my work today at the PSA AW Conference! Many thanks to the organisers @philsci.bsky.social and to our session chair, Michal Hladky, for making the session so welcoming. I also appreciated the pertinent questions from @jgutierrez.bsky.social & @williams-r-b.bsky.social! 🙂