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Karen Fisher, PhD

@fisherke.bsky.social
1.7K followers 1.9K following 954 posts

@RutgersU (Busch campus) Learning CryoEM, Cryo-FIB, and all things viral Interests: Chytrids, cytoskeletal dynamics, autophagy in plants, cool imaging techniques. Espresso addict BA: College of Wooster (OH) MS, PhD: Arizona State

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Karen Fisher, PhD @fisherke.bsky.social · 12h
From KJZZ - Phoenix's NPR station - federal SNAP cuts mean the states are shouldering more - www.kjzz.org/npr-top-stor...
kjzz.org
SNAP's funding model is starting to change. Here's what that means for the program
States will start to pay a larger share of the bill to run the food assistance program, as federal funding for operational costs shrinks.
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Jason Rasgon @vectorgen.bsky.social · 14h
All they have to do is visit an old graveyard
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Heather Brown-Harding @microscopyed.bsky.social · 14h
Kirk Czymmek explaining how to use XRM, vEM, and LM to study plants
Kirk at the podium with a slide showing plant tissue with XRM and EM
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Chrystal Starbird @drstarbird.bsky.social · 01/10/2026
And… I am SO excited to share the first research preprint from my group! In this paper we determined several cryoEM structures to visualize the entire cell-to-cell bridging complex formed by TAM receptor and ligand, bringing into 3D a common graphical depiction. www.biorxiv.org/content/10.6...
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Jeremy Berg @jeremymberg.bsky.social · 01/10/2026
I saw and like this framing: A socialist believes that no one should be rich. A capitalist believes that anyone can become rich. A democratic socialist believes that anyone can become rich, but that no one should be poor. 2/2
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Dale Moulding @dalemoulding.bsky.social · 01/10/2026
Having seen the news: www.bbc.co.uk/news/article... thought I'd share a cilia movie captured at UCL GOS ICH with Eriomina Shahaj & Vanesa Papastavrou using simple DIC on a Nikon Ti2 with DIC at 60x1.4. 500 fps here slowed down 20 times. Processed with Nikon's denoiseAI and an unsharp mask in Fiji.
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Karen Fisher, PhD @fisherke.bsky.social · 01/10/2026
Not the Onion...
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Jennifer Biddle @jenbiddle.bsky.social · 01/10/2026
Hey Biologists : Have you made any comments on the NIH Biosafety Policy for Biohazards? Because some of the changes are REDONKULOUS - and there are only 40 comments on file - Submit comments by Oct 19! osp.od.nih.gov/comment-form.... 🦠 #microsky
osp.od.nih.gov
Comment Form: Draft NIH Biosafety Policy for Research Involving Biohazards
Request for Information: Draft NIH Biosafety Policy for Research Involving Biohazards
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It’s “Mrs. Powers” during my day job @mrspowersdayjob.bsky.social · 01/10/2026
"The Forest Service is locking the public out of roughly 56 miles of our borderlands while contractors move in to bulldoze it,” said Russ McSpadden. Destroying irreplaceable cultural sites &wildlife habitats. “-the Forest Service is helping dismantle the very landscapes it is supposed to protect.”
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Nicholas Bauer PhD @bioturbonick.net · 30/09/2026
The first time I heard about AI methods in microscopy, I worried about hallucinating features that didn't exist. And that was just thinking about well-meaning experimentalists unintentionally producing hallucinated data.
nature.com
This award-winning microscopy image used AI — igniting controversy in a prestigious competition
Researchers say that using artificial-intelligence tools to visualize scientific images can become problematic when models misrepresent the underlying data.
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Tim Feinstein @timnfeinstein.bsky.social · 27/09/2026
TEM: it’s all fun and games until someone reads a MSDS.
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Faine Greenwood @faineg.com · 30/09/2026
GOAT OR BIRD????
This is even better than the
"what color is this dress" dress.
Goat?
or Bird?
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Anne Marie Lutz @colormage.bsky.social · 29/09/2026
“I'm not entirely sure what Meta's end goal is, other than to figure out how to turn every single person into a perpetual data generation machine for its company.” 👇
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Karen Fisher, PhD @fisherke.bsky.social · 29/09/2026
Apparently today is National Coffee Day - but isn’t that everyday for some of us?
A photo of a double shot of espresso in a small white cup and saucer.
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Lisa Kadonaga @tapirtrouble.bsky.social · 29/09/2026
Yet in the US, the football coaches often get paid more than the actual professionals in those disciplines you described www.mprnews.org/story/2013/0...
mprnews.org
Infographic: Who are the highest-paid public employees? Coaches
Remember the talk (or outrage) about how University of Minnesota basketball coach Tubby Smith was the state’s highest-paid public employee? Deadspin‘s infographic above shows we’re not alone. Read the...
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 28/09/2026
“I believe that science derives its authority from…interactions within a community of people trained to interrogate evidence and answer for the conclusions they draw from it. And it is time to formalize what this means, and which sorts of human judgment cannot (or should not) be offloaded to AI.”
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Daniel Knowles @dlknowles.bsky.social · 28/09/2026
I struggled to finish reading this important and horrifying reporting www.theatlantic.com/magazine/202...
theatlantic.com
The Babies Left Behind in America
The United States is deporting parents without their children, creating a whole new family-separation crisis.
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 28/09/2026
Are you looking for a postdoc exploring the cell biology of development, defining how cells change shape and move? Do you want to develop a research program & teaching skills preparing you for a position at a college or small University? Our new NIH grant will support those goals 1/n Please share
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Sylvain Baillet @sylvainbaillet.bsky.social · 25/09/2026
👉 Tenure-track opening in neuroscience @crchum.bsky.social @umontreal.ca crchum.carrieresante.gouv.qc.ca/poste/profes...
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Karen Fisher, PhD @fisherke.bsky.social · 26/09/2026
Braved the storm and got my covid and flu boosters, plus my first shingles dose. Afew hours later I'm questioning getting all of those at once, but grateful for the science of vaccines.
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Mia Konjikusic, PhD @konjikusicmia.bsky.social · 25/09/2026
To add to all the lovely videos of non-AI processes multicilia beating: ctenophore multiciliated cells! They can reach up to 1mm long, causing a rainbow light refraction effect with the correct light positioning! Taken by myself at MBL in 2019 embryology. Realtime frame-rate!
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Christophe 🔬 Leterrier @christlet.bsky.social · 25/09/2026
Here's a balanced account of where the microscopy community stands on AI use by this year's Small World in Motion winner. My main issue is that no one seems to have seen the original data despite requests (no mention of it being reviewed by the organizers) www.the-scientist.com/allegations-...
the-scientist.com
Allegations of AI Use in Nikon Competition Spark Controversy | The Scientist
Microscopists raise concerns about inappropriate AI usage in Nikon's microscopy contest-winning video. Nikon stands their ground, citing no policy breach.
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Jeremy Berg @jeremymberg.bsky.social · 25/09/2026
My quote of the day I've always been a practical person, not one to waste time pursuing unrealistic goals or dreams. But today's dreams can soon become tomorrow's reality in biomedical research. Christopher Reeve
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Craig Kaplan @triggerloop.bsky.social · 25/09/2026
Cryo-EM peeps are living the dream www.science.org/doi/10.1126/...
science.org
In-cell structures visualize human pre-ribosome assembly in the nucleolus
In eukaryotes, ribosome biogenesis initiates within the nucleolus, a hallmark multilayered compartment of the nucleus. Structures of pre-ribosomes have been characterized ex situ, but their assembly p...
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Karen Fisher, PhD @fisherke.bsky.social · 25/09/2026
Signed up to get my covid and flu boosters, plus my first shingles shot this weekend. Please send coffee and chocolate.
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Max Waugh @maxwaughphoto.bsky.social · 17/07/2026
The Yellowstone theme is the one calendar I've been publishing every year since 2006. Thankfully, I have yet to run out of images. Here are a few of the pages...
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CNN @cnn.com · 24/09/2026
Sea turtles usually found in the tropics have been spotted nesting on California beaches — a historical first, according to officials. cnn.it/4yZTVHW
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David Solecki @so-lets-kilab70.bsky.social · 24/09/2026
Georgios Skiniotis and I are announce a unique St. Jude faculty search: a joint effort between the CoE for Structural Cell Biology an intellectual community advancing structural imaging & the Division of Neuronal Cell Biology. CryoET/vEM + neuron cell biology = 🚀 talent.stjude.org/careers/JobD...
talent.stjude.org
Faculty position, Neuronal Cell Biology and Cryo-ET/vEM
Department of Developmental NeurobiologyCenter of Excellence for Structural Cell Biology and Neuronal Cell Biology DivisionSt. Jude Children’s Research HospitalThe Center of Excellence for...
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Jason Stajich @hyphaltip.bsky.social · 24/09/2026
www.latimes.com/science/stor... #valleyfever #cocci
latimes.com
This deadly fungus isn’t just a rural threat anymore. New studies point to cities and oil wells
Researchers at UC Berkeley have discovered valley fever spores in cities in the Central Valley and linked nearby oil drilling to an uptick in infection risk — challenging the long-held belief that the...
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Portugues Lab @portugueslab.bsky.social · 24/09/2026
The Department of Neurobiology and Behavior at Cornell University is hiring! Come and do cutting edge research on the neural basis of natural behaviors at NBB (nbb.cornell.edu). No animal too small, no behavior too strange! Apply here: academicjobsonline.org/ajo/jobs/32592
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Tiffany Lowe-Power stands with Minnesota @tlowepower.bsky.social · 24/09/2026
Please repost/share We're hiring! UC Davis Plant Pathology seeks a tenure-track Assistant Professor in plant health & microbiomes. recruit.ucdavis.edu/JPF07904 My department is full of great colleagues, and we look forward to recruiting our new colleague!
recruit.ucdavis.edu
Assistant Professor of Plant Pathology
University of California, Davis is hiring. Apply now!
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Karen Fisher, PhD @fisherke.bsky.social · 24/09/2026
I am going to date myself by saying this, but when I was first learning TEM we were still shooting to film and I was told I couldn't do anything in photoshop I couldn't do in the darkroom. Good philosophy (also for awhile adjustments in the darkroom were faster than photoshop).
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Isis Sebastião, PhD | Plant Scientist @isissebastiao.bsky.social · 23/09/2026
Hi, plant scientist community! I’m working on a project to test sunflower seedling growth under in vitro conditions, and I’d love to hear from anyone who has experience with seed germination in vitro. Any tips, protocols, or recommendations would be greatly appreciated! Thank you!
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Mathieu M.J.E. Rebeaud @chercheurjuteux.com · 23/09/2026
There is useful use of any technology, but ffs address the questions of experts in the field when they are several to ask questions about the sample you are presenting.
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Heather Brown-Harding @microscopyed.bsky.social · 23/09/2026
Anyone have any seen red autofluorescence in the agarose pad while imaging c. elegans
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Cathy Spangler @cathyspangler.bsky.social · 22/09/2026
I'm excited to share our new preprint, where we show that fine-tuning gold nanoparticle conjugation to different Fab structural elements can produce powerful, rigidly coupled, labeling tools for in-situ cryo-ET. Take a look if you want to see an AuNP in an EM map!🔬🧠 www.biorxiv.org/content/10.6...
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Rosemary Mosco @rosemarymosco.com · 22/09/2026
Happy mushroom season!
A comic titled "Types of mushrooms" with 12 mushroom species. A wrinkly-looking morel is labeled "creepy but tasty". A brownish deadly galerina is labeled "boring but deadly". A witch's butter on a branch is labeled "jiggles if you poke it". A large puffball is labeled "egg". A creepy red-dripping bleeding tooth fungus is labeled "deeply disconcerting". A fly agaric with a green treefrog sitting under it is labeled "frog umbrella". A black chanterelle is labeled "chalice for forbidden elixers". Three straight-stemmed entolomas are labeled "haha, nipples". A bright purple viscid violet cort is labeled "purple is nice". A birch polypore sticking out of a birch trunk is labeled "tree nose". A complex yellow-tpped coral fungus is labeled "cursed citadel where dwells a fairy queen". A Ravenel's stinkhorn is pixellated at the top for your safety, and labeled "NSFW".
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Erin J. Wamsley 🧠📈😴 @wamsleylab.bsky.social · 22/09/2026
Yeah, that's a problem www.chronicle.com/article/high... #academicsky #edusky
A line graph demonstrating the nonacademic spending has outpaced academic spending, from 2010 to 2024. The note indicates this is for 146 R1 institutions. Source: NCES, Created with Datawrapper
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SPIE @spie.org · 22/09/2026
EPFL's recent project addresses the persistent blur in images of unfixed cells by creating spatial polarization-induced fluorescence fluctuation imaging (SPIFFI, for short!). 💡 Next steps include making the imaging setup more compact + integrating it w/ 3D imaging tech. bit.ly/4yH2Hdp
optics.org
EPFL enhances super-resolution imaging from single camera exposures | optics.org
Polarization-based fluorescence method suits the capture of live cell dynamics.
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Joe Walsh @walshfreedom.bsky.social · 21/09/2026
Good. Damn good.
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Lambros Frantzeskakis @lambrosf.bsky.social · 21/09/2026
If you’re a graduate student and interested in fungi please apply, this a great opportunity to experience research in an industry setting jobs.bayer.com/job/Chesterf...
jobs.bayer.com
Fungal Discovery & Genomics Co-Op
Fungal Discovery & Genomics Co-Op
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Karen Fisher, PhD @fisherke.bsky.social · 21/09/2026
Fingers crossed for the ferrets! www.azcentral.com/story/news/e...
azcentral.com
'All up to fate': Arizona sends 18 black-footed ferrets into the wild
Despite low survey numbers after years of ferret releases, new plague prevention and cloning techniques are giving scientists hope for the future.
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Karen Fisher, PhD @fisherke.bsky.social · 21/09/2026
Hey @healthcare.nikon.com Care to comment? Quite a few of us have questions
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Prasad Jallepalli, MD, PhD @prasad.bsky.social · 21/09/2026
“Americans have one of the proudest scientific heritages to draw upon. The founding fathers were keenly aware of the necessity of the freedom to think, the freedom to reason, & the freedom to create. These rights are broadly covered under the First Amendment.” ❤️ this idea: a 1A right to science
Americans have one of the proudest scientific heritages to draw upon. The founding fathers were keenly aware of the necessity of the freedom to think, the freedom to reason, and the freedom to create. These rights are broadly covered under the First Amendment to our
constitution.

We have built on these rights with a federal system of grantmaking, an investment in the best minds in America.
The NIH represents the crowning achievement of this national meritocratic effort to trust the American system to
create American science.
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BWJones @bwjones.bsky.social · 21/09/2026
Hey, #Pittsburgh peeps: I'm doing a thing tomorrow. See you there?
University of
Pittsburgh.

Sip of Science

September 22 7-9pm
Trace Brewing
4312 Main St.

Maysam Chamanzar, PhD - Professor of Electrical and Computer Engineering, Carnegie Mellon University
Developing new technologies to precisely record and control brain activity using electrical signals, sound, and light.

Zeila Hobson - Community Ophthalmology and Remote
Access Program Manager, UPMC Vision Institute
Leading efforts to expand vision care in underserved communities through mobile clinics, telehealth, partnerships, and research.

Bryan Jones, PhD - Professor of Ophthalmology, University of Pittsburgh School of Medicine
Mapping the complex network of neural connections in the retina to reveal how vision works and what goes wrong in disease.
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Colette Delawalla, PhD @cdelawalla.bsky.social · 21/09/2026
5. STAY ON MESSAGE. The message is simple: Trump and his cronies want to destroy the publicly funded scientific ecosystem so they can take the spoils for themselves and their Tech Bros. It’s that simple. None of them are good. You don’t need a nuanced take. You can just say NO!
static.klipy.com
Cat Smacks Other Cat in Playful Swat
ALT: Cat Smacks Other Cat in Playful Swat
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Gregor Mendel Institute of Molecular Plant Biology @gmivienna.bsky.social · 21/09/2026
New paper! A team of researchers led by Pamela Vetrano and group leader @sramundo.bsky.social at the GMI of the @oeaw.bsky.social identified conserved protein VIA1 as an important factor in protecting chloroplast membranes under high light conditions. More here: www.oeaw.ac.at/gmi/detail/n...
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Abdul El-Sayed @abdulelsayed.bsky.social · 20/09/2026
This is about one thing and one thing alone. Steering our research dollars for cancer, heart disease, and new infectious diseases to Trump’s political allies and friends.
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Emily M. Bender @emilymbender.bsky.social · 19/09/2026
And every day there is more Fresh AI Hell. What's worse than polluting the information ecosystem with synthetic text dressed up to look like news? Dressing it up further as the work of fake Indigenous journalists: www.cbc.ca/news/canada/...
cbc.ca
‘Very harmful’: website uses AI to generate northern Indigenous news ‘correspondents’ | CBC News
The website WE NEWS has three northern Indigenous 'AI correspondents.' Their profiles say they are 'a member of Yukon First Nation,' 'of Dene heritage,' and 'an Inuk raised in the North.' Experts in t...
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Princess Vimentin PhD | Cancer Biologist @princess-vimentin.bsky.social · 19/09/2026
This is noteworthy. Again, no compelling evidence supports the COVID lab leak theory. The furin cleavage site present in SARS-CoV2 was perceived as unusual, fueling the lab leak theory. But now we understand that other bat betacoronaviruses have it. 🧪 www.chemistryworld.com/news/does-th...
chemistryworld.com
Does the discovery of a new coronavirus upend the Covid-19 lab-leak hypothesis?
Sequence found in Sars-CoV-2 had never been seen in another bat coronavirus until now
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