This week the Rogue Scholar science blog archive experienced major upgrade pains, and Rogue Scholar search became unavailable from Tuesday until Thursday. I tried to upgrade to a pre-release version (13.0.0b4.dev0) of the InvenioRDM repository software, and ran into multiple issues. Going back to the previously installed v12.1.0 took longer than anticipated, mainly because of issues with the Opensearch index.

Tom recently emailed me this question: Do you know how to find out how many of the compounds that appear in the chemical literature are mentioned just once? Intrigued, I first set out to find out how many substances, as Chemical Abstracts refers to the them, there were as of 5 June, 2025.

Where Extinction Ends and Existence Begins

Im April erschien an der Universität Hamburg eine sehr interessante Untersuchung und Dissertation zu Open Access im Wissenschaftsfeld der Volkswirtschaftslehre. Kristin Biesenbender wertete aus, wie sich das Publikationsverhalten der in diesem Feld Publizierenden vor dem Hintergrund einerseits von Open Access und andererseits von wissenschaftlichen Rankings verändert.

First, before the world drowns in madness, it’s a-QUILL-ops, like a quill pen. Not AWK-wuh-lops, like Aquafina. Second, I made good use of my recent birthday and went to the Lego store at the local mall.

It’s plot recreation time! In this post, we’ll look at how we can recreate a plot in R. I thought it might be useful to provide the solution but also to detail the process I went through to get there. We have a FACS plot taken from a BD FACS Aria machine: Briefly, it’s a histogram of the fluorescence levels of 10000 cells from three different sources.

The National University of Rosario (UNR) in Argentina has long been committed to principles of Open Science and public access to knowledge.

Here I summarise a few posts on Bluesky where I raised concerns about some metadabarcoding datasets that were highlighted by GBIF: Looking at these datasets it’s clear that something is wrong. Data The datasets discussed are for CO1 Amplicon Sequence Variants from Madagascar, which are part of the Insect Biome Atlas project.

¡Nos alegra presentar al nuevo equipo de mentor(a|e)s del programa de Campeon(e|a)s de rOpenSci! Este año, contamos con diez personas muy talentosas, todas originarias de América Latina, que aportan una combinación única de experiencia, entusiasmo y compromiso con la ciencia abierta. Algunas ya formaron parte del programa en ediciones anteriores, ya sea como mentores o como campeonas, y hoy regresan para seguir fortaleciendo esta comunidad.

English version Dado que Crossref celebra su 25º aniversario este año, nos gustaría destacar algunas de las regiones activas y comprometidas en nuestra comunidad global. Durante los primeros 25 años, la composición de los miembros de Crossref ha evolucionado significativamente.

We are excited to introduce the new team of mentors for the rOpenSci Champions Program! This year, we have ten very talented individuals, all from Latin America, who bring a unique combination of experience, enthusiasm, and commitment to open science. Some of them have already been part of the program in previous editions, either as mentors or Champions, and today, they return to continue strengthening this community.