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Ragnhild Irene Jacobsen

@rijacobsen.bsky.social
389 followers 152 following 33 posts

Researcher at the Kavli Institute for Systems Neuroscience and Associate Professor at the Department of Biology, both at NTNU Trondheim. Running the @marineneurolab.bsky.social where we study the brains behind bioluminescence www.marineneurolab.com

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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 23/09/2026
English is what we use to discuss research, but many researchers have a different mother tongue. The general public is also often not fluent in English. How do we bridge the gaps? Discussing these issues with other researchers from across the globe was a true joy! #LanguagesOfAcademia
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 09/08/2026
Har du hørt om havets fyrverkeri? I Akademiet for Yngre Forskere sin spalte i Forskersonen kan du i dag lese om hva det er som glitrer og skinner i dypet, og hvorfor jeg mener at Norge er et ideelt sted å studere dette fenomenet. God søndagslesing! www.forskersonen.no/bioluminesce...
forskersonen.no
Det ukjente fyrverkeriet: lys i havets mørke
POPULÆRVITENSKAP: Vi tenker ofte på havets dyp som mørkt, men de som har tatt turen ned forteller om et fyrverkeri uten like, skriver innsenderen.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 24/06/2026
Very proud of @noralied.bsky.social who is the very first master student graduating the lab, and @nadiave.bsky.social who did a fantastic job supervising her. People are what makes science great and these two prove that time and time again! 🙌🎉
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 06/03/2026
#OCTRON just got even better! Annotate dozens of animals in hundreds of frames in minutes and/or skip masks for super fast predictions. The closest thing to magic I've ever seen for tracking animal behaviour 🪄
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 03/02/2026
Hvordan skal studenter lære norsk fagspråk når mange lærebøker og mye av undervisningen på universitetene er på engelsk? Svaret: termportalen.no - en åpen ressurs for terminologi på tvers av språk, nå med ny termbase innen dyrefysiologi! 🌟 #NorskFagspråk termportalen.w.uib.no/2026/02/02/n...
termportalen.w.uib.no
Ny termbase: Dyrefysiologi
Termgruppa i dyrefysiologi arbeider vidare inn i 2026, i første omgang med mål om å inkludere alle dei sansane dyr har. Deretter ventar fleire spennende tema innanfor fysiologien si verd.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 31/01/2026
#OCTRON summary 👇
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 31/01/2026
📃Preprint: biorxiv.org/content/10.64898/2025.12.20.695663v1 📓Documentation: octron-tracking.github.io/OCTRON-docs 🧫Cell videos by S. Kumar: celltrackingchallenge.net/2d-datasets
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 31/01/2026
You can use #OCTRON to track cells too! It took 10 min to annotate multiple cells in 146 frames, 1.5 hrs to train a model with a GPU, and 10 sec to make these predictions. It doesn't get much easier than that⚡️
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 06/01/2026
More in the preprint here: www.biorxiv.org/content/10.6...
biorxiv.org
OCTRON - a general purpose segmentation and tracking pipeline for behavioral experiments
OCTRON is a pipeline for markerless segmentation and tracking of animals in behavioral experiments. By combining Segment Anything Models (SAM 2) for rapid annotation, YOLO11 models for training, and s...
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 06/01/2026
Have you tried #OCTRON yet? Here's a speedy run-through of the pipeline, showing how you go from annotating animals, to training a model, and visualising predictions in new videos. Everything you need to track your favourite species! 💪
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 02/01/2026
Oh wow - I sometimes think about the barber who started counting seconds but never remember where I read that story. Now I do! Sounds like it's time for a reread for me too.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 23/12/2025
Do you work on animal behaviour? Check out this pipeline created by the incredible @octoscience.bsky.social! It's simply amazing how quickly you can annotate videos, train a model, and use it to analyse novel videos. Especially if your animal of choice is squishy or uses camouflage 🪱🐛🦑🪼🐙
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Eve Seuntjens @eveseuntjens.bsky.social · 21/12/2025
Maybe we should revise policies that push postdocs out of academic research too early. It selects for early achievers that remain in one field and risks losing the highest impact people
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Matteo Guardamagna @matteoguardamagna.bsky.social · 18/11/2025
Still at SfN on the last day? During the morning session on the 19th, 8:00AM - 12:00PM, come check out our posters from the Moser, Zong, and Gonzalo Cogno groups in row QQ ('Grid cells and spatially modulated cells'). Ephys, imaging, remapping, development, sweeps and more! 🧠 Detailed thread below 👇
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Marine Neuroscience Laboratory @marineneurolab.bsky.social · 10/10/2025
#WorldMentalHealthDay #bioluminescence
Blue capital letters on a black background with specks of blue. The text says "even in the darkest depths, it is possible to find light". The image was made with ChatGPT
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 04/09/2025
According to the book Annelida by G Rouse, F Pleijel and @etilic.bsky.social it's 1: palp 2: acicula
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 04/09/2025
Remember: you can contribute to #OpenScience by sharing funding applications on ogrants.org 🎉
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 01/07/2025
Check out these beautiful, glowing worms! 🤩
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 27/06/2025
Kjempebra! 👏
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Melina Antonia Buns @melinabuns.bsky.social · 07/05/2025
Akademiet for yngre forskere leter etter 10 nye medlemmer! AYF samler fantastiske forskere i tidlig karriere der brenner for forskningspolitikk, forskningsformidling og vitenskapelig debatt. Søknadsfristen er 15. juni Mer info ⤵ akademietforyngreforskere.no/vil-du-bli-m...
akademietforyngreforskere.no
Vil du bli medlem hos oss? Nå kan du søke medlemskap! Frist 15.juni - Akademiet for yngre forskere
Vil du bli medlem hos oss? Nå kan du søke medlemskap! Frist 15.juni  Link to the English edition of the Call for applications Velkommen til åpent nettmøte med oss 27.mai kl. 12.00 – les mer og registr...
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Marine Neuroscience Laboratory @marineneurolab.bsky.social · 21/02/2025
In keeping with tradition, a big funding rejection (🥲) means it's treat time! More specifically, tiramisu-tower-time 🎉 It's not easy to start something new, but the like-minded people you meet along the way make it worth it. They keep science fun 🎈🌟
Two square tiramisu pieces stacked on top of each other on a white, circular plate. Underneath the plate is a yellow napkin and an abstract patterned tablecloth. At the front of the image there are two pieces of confectionery in yellow and brown wrapping. The background is an abstract, twirling artwork in dark blues and greens.
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Alfredo Sánchez-Tójar @asanchez-tojar.bsky.social · 19/02/2025
I suspect that my wording was not clear enough and should clarify that it wasn't me who wrote this fantastic piece, but @oaggimenez.bsky.social. 🎩h/t #openscience
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 26/01/2025
Oh I hadn't noticed. The summaries and descriptions i see seem to just be lifted from the publishers'. Should look into that!
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 26/01/2025
For the recommendations?
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 26/01/2025
I second Notion! But as an alternative to Goodreads, try Storygraph - goes above and beyond in my opinon, and you can easily import your entire library from Goodreads
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Marine Neuroscience Laboratory @marineneurolab.bsky.social · 24/01/2025
One thing we did last year was to build our lab and in this video made by @nadiave.bsky.social you can see how it all came together! Our worms naturally live in the deep ocean where sunlight never reaches, so we built a tent where we can house them and do behavioural experiments in total darkness 🌚
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Nadia Maria van Eekelen @nadiave.bsky.social · 21/01/2025
I just learned about Hamid Nedari Yeganeh, who makes amazing drawings using only mathematical equations. Now I can't begin to understand how he does this, but I wanted to share this one he made of a gossamer worm. So cool! 🤯
Drawing of a gossamer worm made with mathematical equations, by Hamid Naderi Yeganeh
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 16/01/2025
Accompanied by 10 tips for young academics, from the young Nordic and Baltic academies Source of the tips: www.sciencenordic.com/academia-res...
The left side of the picture contains part of a power point slide listing 10 tips for young academics ("1. Be kind and build a good reputation, 2. Prioritise punctuality and reliability, 3. Understand the informal work culture, 4. Contribute beyond research, 5. Build a strong network early, 6. Embrace flat hierarchies, 7. Explore diverse funding sources, 8. Engage in interdisciplinary collaboration, 9. Learn the local language, 10. Adapt to local working customs"). Next to the slide, in the bottom right corner of the picture, is a man in a blue shirt and black jacket presenting. The background wall is brown.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 16/01/2025
5 lessons in how to nurture and support new young researchers from Professor Michael Woods at a seminar organised by The Letten Prize, The Holberg Prize and The Young Academy of Norway
A power point slide titled 'Five lessons' and containing a list of five points ("1. New researchers need to be given space to grow, 2. The research career journey is best done with fellow travellers, 2. Being a researcher is about more than research skills and new researchers need to be equipped accordingly, 4. New researchers should be allowed to shine, 5. There is a need for clarity of expectations (and for recognition of the virtue of patience"). Next to the slide is a man in a blue shirt and black jacket and trousers, and backs of the heads of several people are in the foreground of the picture.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 09/01/2025
😱
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 21/12/2024
Hurray for the non-model organism “renaissance” in neuroscience!
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Marine Neuroscience Laboratory @marineneurolab.bsky.social · 11/12/2024
Meet the team at the MNL! We're a small lab with big ambitions, but also value time off. Because discoveries are made by humans, so you need to put their wellbeing first. Meet our humans below! 👇
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 06/12/2024
Now you can follow the ups and downs of our research on the brains behind bioluminescence! This is my passion project and by sharing what we do I hope we can make even more people passionate about weird worms and luring lights 🌟🐛
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Dani Dark Skies ✨ @danidarkskies.bsky.social · 05/12/2024
Christmas time, mistletoe and… light pollution? 💡 I’m not here to ruin your Christmas! But festive lights can really interfere with the darkest season of the year 🌌 Here are a few tips to lessen your impact on darkness all whilst unleashing your Christmas cheer! 🎄
A very large home with double garage, front door is between front window and the garage and a bay window. Warm Christmas lights hang under the eaves of the roof and guttering.
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 04/12/2024
Ever wondered what the difference between fluorescence and bioluminescence is? Watch this to get the escence(s) 👇
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 04/12/2024
Great explanation of the difference - will incorporate this video into my teaching! One question: do these results mean that presence of fluorescence can be used to predict where a species feeds, given dependence on blue photons, ie depth?
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 04/12/2024
Fun! Would love to hear about the results when they're ready! 😃
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 02/12/2024
Wow these are beautiful!
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 01/12/2024
Thinking of pursuing a research career in Norway? Then the latest episode of #Forskerrådet is for you: hear the pros and cons, plus tips for how to make the most of your time in Norway from other young, international researchers who did just that creators.spotify.com/pod/show/for...
creators.spotify.com
New in Norway? by Forskerrådet*
In this episode, we switch to English in order to share insights with international researchers in Norway. Haley De Korne interviews guests Salwa Suliman from the University of Bergen, Aida Cuni-Sanch...
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 30/11/2024
Wohoo! Would love to be added if possible
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Johanna Joyce @johannajoyce.bsky.social · 25/11/2024
Women are under-represented at senior levels in #academia globally, & across all #science 🧪 disciplines, as shown by these "scissor-shaped curves" ✂️ So how can we ever achieve #gender #equality? We discuss various strategies in this #Cell Commentary #WomeninSTEM www.cell.com/cell/fulltex... 🧵 1/
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 25/11/2024
What a great starter pack! Would love to be added if possible
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 25/11/2024
Amazing! I'd love to be added if possible
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Ragnhild Irene Jacobsen @rijacobsen.bsky.social · 21/11/2024
I'm a systems neuroscientist moving from the mouse hippocampus to worms that glow. Because look at them, they're gorgeous!
A picture of a transparent worm with many legs is shown on the left, and on the right is another worm but only the yellow bioluminescence being emitted from its legs is visible. The background is black. The text across the bottom of the image reads "Gouveneaux & Mallefet 2013, Journal of Experimental Biology"
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