1/5 📊✨ #WorldStatsDay meets Ancient Pottery! Did you know REVERSEACTION uses statistics to study archaeological materials? Our recent paper in #OpenArchaeology reveals new insights into pottery from pre-Hispanic Nariño, #Colombia, by turning vessel shapes and paste compositions into numbers using:

We are HIRING 🎉 REVERSEACTION are seeking a Research Assistant in Archaeometallurgy PLEASE SHARE 🗓️Applications close May 30th 2025 ➡️More info available at www.jobs.cam.ac.uk/job/51186/ #archaeologicalscience #archaeology #colombia #metallurgy #archaeometallurgy #materialsscience

@justalittleroo.bsky.social would like you all to know that she was also there supporting her team from the side-lines (she got fomo and booked a holiday) and as such we have fixed the first photo accordingly #archaeologistoffduty #stillinamuseum

In March, Lina María Campos Quintero, @jasminevieri.bsky.social, and Marcos Martinón-Torres participated in a workshop about #earlymetallurgy from Mexico to #Colombia, in San José, #CostaRica 1/

📢 New #OpenAccess publication in Open Archaeology 📢 We present the first comparative tech analysis of painted Pre-Hispanic ceramics from #Nariño, #Colombia, combining #GMM of 3D models, #pXRF, #Raman, and #SEM Read here ➡️ www.degruyterbrill.com/document/doi... @degruyterbrill.bsky.social

PAID #INTERNSHIP for undergrads, with free accommodation in #Cambridge! Projects in: - Animal #SocialScience - Physical Activity #Research - #Archaeology - #CognitiveScience - Social Research Please #SHARE & help us reach more individuals and HE Departments #wideningparticipation #scicomm

Thinking about postgrad research in the humanities and social sciences but not sure it’s for you? Apply for our paid research experience internships by Friday 28 Feb to spend your summer with our incredible research community bit.ly/3PqhpRB Join the @reverseaction.bsky.social team!

Preparing some resin-embedded ceramic samples for SEM-EDS analysis 🧐 for a full post on why we do this kind of analysis on ceramics scroll down our page 👀 #archaeology #archaeologicalscience #sampleprep www.instagram.com/reel/DFFbUoI...

Happy New Year from REVERSEACTION who have been back in the labs already, preparing polished blocks for the SEM! These blocks contain small fragments of Nariño vessels (from already broken sherds) and we hope to investigate the clay fabric 💪 (1/3) #ArchaeologicalScience #archaeology

El material suplementario incluye un resumen extendido en español: ars.els-cdn.com/content/imag...

All of the data and code are fully reproducible and publicly available on a dedicated repository: github.com/jmkvieri/BBLoP Funded by AHRC, ERC (@reverseaction.bsky.social), and the Osk. Huttunen foundation.

6️⃣The new modelling tools are readily applicable beyond archaeometallurgy, e.g, to compositional studies on ceramics or glass, or even to modelling the variability of diets in isotopic studies

5️⃣The new tools were applied to the study of Muisca goldwork from pre-Hispanic Colombia (AD 600-1600). The findings suggest the intra-regional circulation of imported gold, with people pooling metals from a variety of geological sources for communal festivities.

4️⃣Hierarchical (multilevel) model specifications can simultaneously consider both local and regional patterns in past craft production activities, whilst also accounting for sampling uncertainty. Think of it as zooming in and out on the past!

3️⃣Variability in dispersion can tell us about behavioural factors in the past—like centralised control over resources or local improvisation. For example: High dispersion ➡️ decentralised or improvised production Low dispersion ➡️ more standardised practices

2️⃣Compositional averages are often used to identify the desired performance characteristics of materials or in reconstructing artefact provenance. But what if compositional dispersions are just as revealing? We move beyond averages in explicitly defining 4 main sources of compositional variability

1️⃣Compositional data are often skewed and heteroskedastic, making them challenging to model. Traditional approaches within archaeology, such as simple linear regression on log-transformed data, can make numerically impossible predictions. Beta regression is shown to be a more robust alternative

New paper out in JAS on beta regression models of compositional variability in craft production studies! Huge thanks to co-authors @ercrema.bsky.social, María Alicia Uribe Villegas, Juanita Sáenz Samper and @martinontorres.bsky.social www.sciencedirect.com/science/arti... Key takeaways: 👇

Congratulations to our Research Assistant Rosie @justalittleroo.bsky.social for winning the Early Career Archaeologist and Dissemination or Presentation Awards at the 2024 #ArchaeologicalAchievementAwards! 🎉

Wishing our Research Assistant @justalittleroo.bsky.social the best of luck tomorrow at the 2024 #ArchaeologicalAchievementAwards. Everyone here at REVERSEACTION is super proud! ✨

@noxon.bsky.social hello! Myself and @kateklesner.bsky.social of @reverseaction.bsky.social are currently working with 3D structured light scanning & geometric morphometrics 🙋‍♀️

Hello world, we are @reverseaction.bsky.social, an ERC-funded project on #archaeology, #science, #technology, #crafts, #luxury… and #collectiveaction. Allow us to introduce our project. And maybe you can follow and repost? 👀🥼