Substituting a deuterium isotope (2H) for a normal protium hydrogen isotope can slow the rate of a chemical reaction if this atom is involved in the reaction mode.

While my feelings about it are somewhat mixed, Murderbot (Apple TV, 2025-), the streaming adaptation of the wonderful The Murderbot Diaries series by Martha Wells, expands upon one of the key elements of the book series: the serial-within-the-series called The Rise and Fall of Sanctuary Moon (SM). For those unfamiliar with any of these texts, […]

For the first half of November, I’ve been in Peru to do some hikes close to Cusco with friends: First, we did a 5 day trek to the Inca site of Choquequirao and back. After a day and a half of rest back in Cusco, we then did the 4-day Inca trail to Machu Picchu as well. Of course, I wanted to use those opportunities to do some surveying and mapping for OpenStreetMap (OSM) along the way as well.

R updates (R Data Scientist, R weekly)

Penser la santé publique d’aujourd’hui et de demain est un double défi Les systèmes de santé dans les pays à haut revenus sont face à un double défi: être plus résilient et adapté face aux enjeux climatiques et réduire l’empreinte carbone liée aux soins (~ 8% des émissions françaises). Les systèmes de santé régionaux ou nationaux vont, de manière graduelle et abrupte, être sollicités par les conséquences du changement climatique

Mon document d’habilitation à diriger des recherches est disponible en ligne. Soyons franc, l’exercice n’était pas des plus plaisant, mais les échanges lors de la défense orale étaient riches de réflexions.

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Retomo donde dejé la última entrada.

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Ein Bericht von Linda Martin, Maike Neufend und Renate Voget.

I have always been interested in the extremes of galaxy properties, especially to low surface brightness (LSB). LSB galaxies are hard to find and observe, so they present an evergreen opportunity for discovery. They also expose theories built to explain bright galaxies to novel tests. Fundamental properties of galaxies include their size and luminosity.