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Johannes Keyser

@jokeyser.fediscience.org.ap.brid.gy

Scientist, and lab manager at Psychology and Human Movement Science at University of Hamburg. Carpentries Instructor. He/him. Interested in #sensorimotor […] 🌉 bridged from ⁂ https://fediscience.org/@jokeyser, follow @ap.brid.gy to interact

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Johannes Keyser @jokeyser.fediscience.org.ap.brid.gy · 3w ago

Just figured out that registering a new Yubikey as 2nd factor via (FIDO?) at Microsoft (e.g., GitHub and https://myaccount.microsoft.com/), Firefox isn't working currently. It worked fine with Google Chrome. Once registered, authentication works fine with Firefox again. My websearch-fu failed […]

Original post on fediscience.org

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Peer Community In @peercommunityin.ecoevo.social.ap.brid.gy · 3w ago

Don’t miss our next PCI Webinar! Join us for a webinar with Daniël Lakens on: “Essential aspects of well-designed studies” 📅 October 1st | 🕐 4 PM (GMT+1) Want to learn more about the quality of science, sample size justifications and best pratices in science? Join the discussion and discover […]

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Björn Brembs @brembs.mastodon.social.ap.brid.gy · 3mo ago

So stoked to start organizing this workshop: "Playing Dice: Chance as a Biological Strategy" that just got funded by @Co_Biologists Across all levels of complexity, researchers have independently arrived at the same conclusion: biological systems do not […] [Original post on mastodon.social]

$Variability is often treated as noise to be minimised — an inconvenience that obscures the "true" signal in biological data. Yet a growing body of evidence across every level of biological organisation tells a strikingly different story: the capacity to vary is not a bug, but a feature: a deeply conserved and actively regulated trait of all living systems. This workshop will bring together researchers working at these different levels to build a unified picture of variability as a biological strategy. Molecular and cellular level. In microbes, stochastic gene expression enables bet-hedging: a tunable fraction of a clonal population enters phenotypically distinct states — persister cells tolerant to antibiotics, competent cells primed for horizontal gene transfer, or spore-forming cells prepared for starvation. In the vertebrate immune system, hypermutation of immunoglobulin genes deliberately diversifies antibody recognition in the face of an unpredictable antigenic landscape. Circuit and systems level. Bacterial chemotaxis exploits rotational noise during tumbles as a directional-sensing mechanism. In certain neuronal circuits, a remarkable proportion of neurons are dedicated specifically to increasing circuit variability — liberating behaviour from moment-to-moment environmental demands and enabling autonomy. Organismal and ecological level. Stochastic escape trajectories in prey animals prevent predators from learning predictable evasion patterns.$

Johannes Keyser @jokeyser.fediscience.org.ap.brid.gy · 3mo ago

I just realized that the COS's standard OSF Preregistration template was updated. Among the changes is a new, optional section "Intention for causal interpretation" 💪 . @cos , I'm curious, is there a blog post or something that explains the motivation behind the changes? I could not find […]

Original post on fediscience.org

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Johannes Keyser @jokeyser.fediscience.org.ap.brid.gy · 9mo ago

Is your lab doing code reviews? I'd like to hear about your experiences and practices! In our teams, we'd like to establish internal peer-reviews of our research software. Our focus is on the correctness of our "one-off" analysis scripts underlying manuscripts. Because of that, the usual […]

Original post on fediscience.org

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Björn Brembs @brembs.mastodon.social.ap.brid.gy · 10mo ago

Wichtige Artikel-Serie zum Thema #openscience Wem gehört die Wissenschaft – und wem sollte sie gehören? Das Blog-Symposium „Wem gehört die Wissenschaft?“ greift diese Frage auf und beleuchtet Facetten der Organisation von Wissenschaft als Gemeingut, der Eigentums- und Machtverhältnisse im […]

Original post on mastodon.social

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Johannes Keyser @jokeyser.fediscience.org.ap.brid.gy · 10mo ago

A "Nutri-Score", but for the lab 😁 We uploaded a preprint with our thoughts on optimal lab technology for complex questions. We hope it's as much fun to read as was writing it: Wolff, W., Gluth, S., & Keyser, J. (2025, December 6). Considerations for setting up an S-tier behavioral and brain […]

Original post on fediscience.org

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