Moritz Negwer

@moritz_negwer@mstdn.science
988 Followers
2.6K Following
13.8K Posts

Neuroscientist by training, tinkerer by nature. Now scanning transparent mouse brains with light-sheet microscopes. Microscopy, clearing, data crunching, tinkering.

Working as postdoc at @radboudumc with Nael Nadif Kasri and Corette Wierenga, looking at neuron-distribution differences in mouse models of ASD.

Married, father of two. Toots in English, German, Dutch. Boosts a lot.

opted into tootfinder for full-text indexing. Check it out: https://www.tootfinder.ch/index.php?join=1

Weekend #Plankton Factoid 🦠🦐
Did you know some #copepods can "porpoise" out of the water, even though they are only mm sized? The forces required for them to break the significant surface tension of the water is enormous, 10x larger than other animals scaled to size. This requires swimming escape velocities > 1 m/s!
Surface dwelling copepods (neustonic) doing this is one thing, but so can pelagic ones. Full paper in link 📕.
#science #oceans #MarineBiology
https://www.oceanlifecentre.dk/news/nyhed?id=b2d38ca9-df5f-4c7d-b4c2-320cd3c16890
I get annoyed at the narrative that all the awareness and work on climate change hasn't done anything. Yes, global CO₂ emissions indeed continue to climb, but we don't know the counterfactual. When I was in grad school, we were on track for 5°C of warming. Now it's below 3°C. That's progress, even if we should do a lot more.

hey chooms, it's time for an #introduction post!  

i'm fluted. by day, i'm a chef in the corpo world and travel between countries a fair bit and by night, i dive into norwegian learning, gaming, code, small electronics, and building tools to smooth out the edges of daily life.

if it can be done in a terminal, count me in. i love writing scripts and automations to save time... even if they take way longer to make than just doing the thing manually.

expect website experiments, home automation, and the occasional "not needed but made anyway" bash utility.

i'm always up for learning anything computer related but mostly just excited to jack in and see what everyone's building and doing 

This discovery comes from the NSF's Green Bank Telescope in West Virginia. Its funding is set to be gutted, effectively scrapping the telescope, in the 2026 budget.

Jobs lost. Science lost. All to save a whopping...$7 million.

https://greenbankobservatory.org/about/telescopes/gbt/ #science #trump #tech

Zwei Besucher des Heavy-Metal-Festivals in Wacken sollen am Freitagabend rechtsradikale Parolen gerufen haben.

Zack:
Rausschmiss.
Hausverbot.
Ermittlungsverfahren.

Wacken stabil.

🤘

New body size database for marine animals is a “library of life”
Marine Organizational Body Size (MOBS) database fills a crucial gap in understanding ocean biodiversity.
https://arstechnica.com/science/2025/06/new-body-size-database-for-marine-animals-is-a-library-of-life/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

grumpy effective sysadmin available immediately

having my position finally axed liquidated, i'm currently looking for a new position.

i am looking for a senior position, preferably remote work, full employment. i can be the literally senior person in your very own team!

availability date negotiatable starting from 1st of july 2025 – i'm currently located in poland, and for various reasons am not planning to relocate.

current cv available on request (private message will do, with all caveats regarding its privacy, or you can e-mail me on miroslaw AT makabra dot org)

i'm a generalist linux wrangler, with a long (20+ years) and wide (if a bit eclectic) experience –

  • system management, configuration management (ansible, chef & co.),

  • glue tooling and scripting (bash, python, rudimentary ruby),

  • design, setup and management of crucial infrastructure services (ldap, dns),

  • general db skills (not at the dba level), devops-y stuff etc.,

  • sysadmin-level networking stuff, and the ability to not stepping on toes of the netadmins too frequently,

  • very tired familiarity with version control systems (from using to setting up and managing, including ancient and current ones, open source and commercial),

  • also with long experience working in multi time-zone environment.

i know cloud stuff (mostly aws), spent some time recently working with the budget infra providers like hetzner or ovh, can do proxmox, have some docker and currently working on getting fluency in kubernetes – i'm already doing plenty of yaml programming.

in my recent job i've managed the most part of our ansible collection designed to set up base system image and then then getting specific services up and running, and have written tooling to help with bringing up and updating the systems using it, including a safe secret management on a small team scale.

i have fluent english and polish, passive german, some russian.

considering the current political and economical situation and that i'm looking for a long-term employment contract, i'd prefer not working for an united-states funded company, and preferably not having much to do with statistical slop generators of any kind (including, but not limited to LLMs).

it would be nice if the company had a minimally acceptable general business ethics profile.

#FediHire #GetFediHired #SystemAdministration #PayMeBecauseImGood

@helenczerski I remember Andries Meijerinck from Utrecht telling the story of how he had a visit from some people from the European Central bank who wanted to learn about luminescence. He spent a few hours talking to them and then didn't hear from them. When the euro banknotes appeared he recorded the spectra of the inks - sure enough they were a mix of Eu(III) and Eu(II)… 
And I think they're in other banknotes, including pounds, though I've never got round to recording the spectra. 1/2

#OpenSLS update: Generation of model #tissues with #dendritic #vascular networks via sacrificial #laser-sintered #carbohydrate templates: https://rdcu.be/b5tHy

Hardware designs: https://github.com/MillerLabFTW/OpenSLS
-R4: specialty powders for biomaterials research
-R3: nylon & wax #SLS

-#Python add-on for #Blender to generate bifurcating vascular structures
#DIYbio #OpenSource #lab #3Dprinting #bioprinter #laser #hydrogel #instruments

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New body size database for marine animals is a “library of life”
Marine Organizational Body Size (MOBS) database fills a crucial gap in understanding ocean biodiversity.
https://arstechnica.com/science/2025/06/new-body-size-database-for-marine-animals-is-a-library-of-life/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social