Joana Grah
@joanagrah.bsky.social
720 followers 1.6K following 66 posts
#ImageAnalysis Centre for #AI in #PublicHealth Research @rki.de • PhD in applied maths from @cam.ac.uk • co-founder @hermathsstory.bsky.social • #firstgen #scicomm • she/her
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Reposted by Joana Grah
florianaigner.at
Tun wir jetzt so, als wäre diese Aussage normal? Ignorieren wir einfach, dass hier ein unverzichtbares Anstands-Mindestmaß zerbrochen wurde? Oder kommt da doch noch ein bisschen Aufruhr?
Wir müssen nicht über Brandmauern philosophieren, wenn es auf beiden Seiten der Mauer lichterloh brennt.
eckstein.bsky.social
Migration und das Stadtbild... bemerkenswerte Aussage von #Merz: "Bei der Migration sind wir sehr weit [...] Aber wir haben natürlich immer im Stadtbild noch dieses Problem und deswegen ist der Bundesinnenminister ja auch dabei jetzt in sehr großem Umfang auch Rückführungen zu ermöglichen" 1/x
Reposted by Joana Grah
plusmaths.bsky.social
In our latest #podcast we talk to Codina Cotar about a #maths #art competition she ran connecting to a @NewtonInstitute research programme. The entries were amazing! Find out more in our chat with Codina plus.maths.org/content/livi...
Living proof: Codina Cotar and some amazing mathematical art
In this episode of Maths on the Move Codina Cotar discusses some of the jaw-dropping entries of a recent maths-art competition.
plus.maths.org
Reposted by Joana Grah
Reposted by Joana Grah
hermathsstory.bsky.social
Today our team member @annabregermusic.bsky.social tells her story - “Many little twists and turns have brought me to where I am now and I am absolutely thrilled about my interdisciplinary research project working on image analysis and historical music manuscripts.”

➡️ hermathsstory.eu/anna-breger/
Alt text for picture: The picture shows the Her Maths Story logo on top, below is a portrait photo of Anna Breger. She’s wearing a dark blue shirt and a violin in her hands. She has long dark hair. The background is dark and her left side is covered by shade. Below the picture it says her name and Assistant Research Professor.
Reposted by Joana Grah
adalovelaceday.bsky.social
More Passion for Science: Journeys Into the Unknown shines a light on women's stories, from the derring do of the Air Transport Auxiliary in WWII, to the rigorous physical and psychological testing of Mercury astronaut hopefuls. Read more: findingada.com/shop/... #ALD25
Reposted by Joana Grah
dirque.bsky.social
New on arXiv: Why noise matters in learned regularization!
Data-driven regularizers fail without noise structure. 🎯
Tikhonov, Lavrentiev, quadratic — not equal under non-white noise.
🤫 Spoiler: Optimal reconstruction needs proper noise modeling.
👉 Regularizer choice = structure and noise.
arxiv-math-na.bsky.social
Sebastian Banert, Christoph Brauer, Dirk Lorenz, Lionel Tondji
Why the noise model matters: A performance gap in learned regularization
https://arxiv.org/abs/2510.12521
Reposted by Joana Grah
plusmaths.bsky.social
It's #AdaLovelaceDay! We celebrate by revisiting some of our content produced with women mathematicians over the last year! From #ArtificialIntelligence to group theory, we hope you enjoy our articles and podcasts plus.maths.org/content/happ... #maths #math #mathematics
Happy Ada Lovelace Day 2025!
We celebrate by revisiting some of the articles and podcasts we produced with women mathematicians over the last year.
plus.maths.org
Reposted by Joana Grah
emulenews.bsky.social
#arXiv Inspiring stories from women in astronomy in Africa arxiv.org/abs/2510.05195 collection of biographies and tapestry of resilience, passion, and scientific excellence woven through the lives of women who have ventured into the cosmos from the African continent.
Reposted by Joana Grah
bitterscriptreader.bsky.social
Every A.I. CEO is like “We invented a robot that can fuck your wife so you have more free time to mow the lawn!”
Reposted by Joana Grah
astriddeilmann.bsky.social
Gute Nachricht: Wir haben gegen Elon Musks KI vor Gericht gewonnen.

Das Landgericht Hamburg sagt klar: Auch eine KI darf keine Lügen verbreiten – und die dahinter stehende Firma haftet im Zweifel dafür.

Unser Rechtsstaat funktioniert. Auch gegen Milliardenkonzerne mit Gottkomplex.
Eine Grafik mit der Überschrift "Campact vs Grok 1-0" und einem Bild eines enttäuscht schauenden Elon Musk.
Reposted by Joana Grah
kit.edu
Wissenschaftlerinnen mit Sichtbarkeitslücke: Eine Langzeitstudie des #KITKarlsruhe belegt, dass #Wissenschaftlerinnen in der deutschen #Medienberichterstattung zu wissenschaftlichen Risikothemen unterrepräsentiert sind. www.kit.edu/kit/202510-w...
Symbolbild: Videoteam des KIT filmt eine Wissenschaftlerin
Reposted by Joana Grah
hermathsstory.bsky.social
Join us for a special screening of #CountedOutDoc, a powerful documentary that explores how math shapes our everyday lives. Don’t miss this chance to be part of an important conversation.

Reserve your spot today, register at: watch.showandtell.film/watch/her-ma...

#CountedOut #ReImagineMath
The picture shows the Counted Out film logo, with the text ‘Her Maths Story presents A Special Virtual Screening of the Award-Winning Film Counted Out October 17th, 12pm ET / 6pm CEST Free with RSVP.  There is a link on the bottom right corner to the film website, www.CountedOutFilm.com.  There is a quote below the announcement, ‘“Our inability, as citizens, to speak the language that is math is truly risky to us a society.” - Julia Angwin’.
Reposted by Joana Grah
plusmaths.bsky.social
Topological data analysis which uses pure #maths techniques to analyse (big) #data is one of our favourite topics at the moment. In the latest episode of our #podcast Mike Hill explores it further, including applications in social justice plus.maths.org/content/topo...
Topological data analysis with Michael Hill
Find out how topology, traditionally part of pure maths, can help us understand big data, with applications in areas such as cancer research and social justice.
plus.maths.org
Reposted by Joana Grah
linksanwaelte.bsky.social
Ich wollte zu Halloween als aufkommender Faschismus gehen, aber offenbar findet das kaum jemand gruselig.
Reposted by Joana Grah
kojamf.bsky.social
Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.
Reposted by Joana Grah
countedout.bsky.social
From #data to #AI, our world runs on math. #CountedOutDoc calls us to ensure everyone is prepared, empowered, and counted in. #FutureOfWork
Reposted by Joana Grah
jensfoell.de
People are running stats on LLM-generated participants and think they’re being social scientists when in fact they’re technically just playing a very strange video game. This is like saying you’re doing math research because you’re playing sudoku.

www.science.org/content/arti...
AI-generated ‘participants’ can lead social science experiments astray, study finds
Data produced by “silicon samples” depends on researchers’ exact choice of models, prompts, and settings
www.science.org
Reposted by Joana Grah
aresherman.bsky.social
🚨 New paper: Who climbs the Ivory Tower? 🏛️ Together with Nicolai Borgen and Astrid Sandsør (@astridsandsor.bsky.social), we find that the chances of becoming a professor differ enormously by family background. Here’s what we find 👇

journals.sagepub.com/doi/full/10....
joanagrah.bsky.social
Re-watched Bo Burnham‘s Inside and I still think it‘s brilliant, on point & heartbreaking.
Reposted by Joana Grah
skypeascientist.bsky.social
Alrght everybody, get your Tin Can Telephones out. We need your help!

We reach new people by word of mouth. Send all your educator friends this pic! Teachers, librarians, scout troop leaders, etc! We offer our program for free, so we need help getting the word out without advertising $$.
A purple and red octopus talk to each other on the tin can telephone. Purple octopus says “want to connect your students with real
Scientists?” Then red octopus says “Skype a scientist matches groups with scientists for virtual q&as. It’s free!” And then an orange flapjack octopus says “get a match at skypeascientist.com”
Reposted by Joana Grah
biotay.bsky.social
1/2 Dogs are capable of forming mental categories of objects, despite not having language or being trained in symbols.

The dogs (mostly border collies) categorized new toys based on their experience with them.

(paper) www.cell.com/current-biol...
Reposted by Joana Grah
auschwitzmemorial.bsky.social
Podcast | "Medicine in Auschwitz"

Participation in selections of Jews became one of the deadly duties of the SS physicians in #Auschwitz. But it was not the only one.

Our podcast about medical crimes at Auschwitz: https://www.auschwitz.org/en/education/e-learning/podcast/medicine-in-auschwitz
Selection at Auschwitz II-Birkenau. An SS doctor in a uniform is standing in front of a line of people approaching him. A man with a walking stick is right in front of him. The SS man points him to the right. He would join a large group of maan standing in the corner of the frame in the distance. Those people will be murdered in a gas chamber. Railline and a building is visible in the background of the photo.
Reposted by Joana Grah
keefemurren.bsky.social
"Whoever forbids Antifa, wants fascism! Make Antifa Great Again!" - Bayern Munich fans on Friday, right behind the goal, so guaranteed to be in the broadcast worldwide.
"Whoever forbids Antifa, wants fascism! Make Antifa Great Again!" - Banner held by Bayern Munich fans on Friday, right behind the goal, so guaranteed to be in the broadcast worldwide.
joanagrah.bsky.social
Ich muss schweren Herzens 2 Tickets für die Eröffnungsparty/-konzert (Fuffifufzich / Blond / Special Guests) im @hkw-berlin.bsky.social & 2 Tickets (HEUTE) für die Ausstellung „Die Möglichkeit der Unvernunft“ von @janboehm.bsky.social & Gruppe Royale) verkaufen. 😢