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Mark Peifer (He, him)

@peiferlabunc.bsky.social
12K followers 7.2K following 17K posts

Cell adhesion, cytoskeletal regulation, Wnt signaling & wherever science leads us + wildflowers & my own idiosyncratic views. First gen college grad Diversity, equity & Inclusion are core American Values peiferlab.web.unc.edu

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Reposted by Mark Peifer (He, him)
Will Ratcliff @wcratcliff.bsky.social · 2h
Application review for the GRC in Microbial Population Biology will start October 15th! Please apply before then if you are keen on coming. www.grc.org/microbial-po...
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Reposted by Mark Peifer (He, him)
American Society for Cell Biology @ascbiology.bsky.social · 4h
NIH is considering changes to how grant review results are reported, including eliminating numerical overall impact scores. Comments are due Oct. 13. Learn more and make your voice heard: www.ascb.org/science-policy/nih-pro…
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Reposted by Mark Peifer (He, him)
Ellen Leffler @ellenleffler.bsky.social · 3h
My department at University of Utah is recruiting new faculty, with "Human" and "Genetics" broadly defined. It is a fantastic place to start a lab, with collaboration, creativity and conviviality encouraged. Applications due Oct 16. Please share and apply! utah.peopleadmin.com/postings/208...
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 3h
Please share--2 tenure track positions!
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Reposted by Mark Peifer (He, him)
Eric Columbus @ericcolumbus.bsky.social · 8h
Not a great sign when your 12-person private fundraiser includes someone who hates you enough to leak damaging audio
The audio of Mr. Paxton was shared with The Times by an attendee who recorded him speaking at a private fund-raiser in Washington attended by roughly a dozen people. The person, who opposes Mr. Paxton’s campaign and provided the recording to The Times, was granted anonymity because Mr. Paxton’s remarks were private.
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Reposted by Mark Peifer (He, him)
Justin Baragona @justinbaragona.bsky.social · 8h
“So to be honest with you, the numbers — when we did that convention — it dropped our numbers. Everybody’s numbers dropped. Right now, yeah, not good.” www.nytimes.com/2026/09/30/u...
nytimes.com
Ken Paxton, G.O.P. Nominee in Texas, Privately Said Trump’s Convention Hurt Him
Ken Paxton, one of the party’s top Senate candidates and a Trump loyalist, said that “everybody’s numbers dropped” after the event, according to audio obtained by The Times.
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Reposted by Mark Peifer (He, him)
Alexander Tsai, MD @drdrtsai.bsky.social · 7h
This happened a few weeks ago. retractionwatch.com/2026/09/08/e...
retractionwatch.com
Editors of higher education journal coauthor editorial with fake references
Taylor & Francis is investigating an article in one of its journals after the editors published an editorial about academic freedom that contains multiple fake references and citation errors.&n…
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Reposted by Mark Peifer (He, him)
Elisabeth Bik @elisabethbik.bsky.social · 29/09/2026
Post it on PubPeer (with some screenshots), and then write to the Editor of the journal. Let me know if I can help.
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Reposted by Mark Peifer (He, him)
Anthony Dornan @dornan.bsky.social · 9h
Sharing Matthew Broadhead's recent preprint outlining the discovery & characterisation of the novel Honeycomb Synapse - formed by postsynaptic scaffold proteins that form nanoclusters arranged into perfect rings of ~6, creating the eponymous hexagonal perforations. www.biorxiv.org/content/10.6...
2D microscope fluorescent  image & 3D representation of the Honeycomb synapse in the mouse spinal cord.
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Reposted by Mark Peifer (He, him)
Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · 9h
Going strong today with the sampling team ! Such a Bliss to be outdoors honnestly.
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Reposted by Mark Peifer (He, him)
Gemma Kerr @scurvykerr.bsky.social · 16h
🧑‍🍳 💋 👌
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Reposted by Mark Peifer (He, him)
Senator Amy Klobuchar @klobuchar.senate.gov · 29/09/2026
Before calling someone a “dirtbag,” the Senator should have had his facts straight. An apology is in order. Glad one of us knew the difference between the Atlanta Hawks and the Iowa Hawkeyes!
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Reposted by Mark Peifer (He, him)
David Gould @drdavidgould.bsky.social · 10h
My book on historic rabbit warrens in England is published on 13th Nov by Liverpool Uni Press and I'm pleased to have received my advance copies. The perfect Xmas gift for any rabbit warren-obsessed nerd, of which there are no doubt many such people. #landscapearchaeology #rabbits #medievalsky
Me in a dapper shirt pointing at the cover of my soon to be published book.
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Reposted by Mark Peifer (He, him)
Craig MacLean @craigmaclean.bsky.social · 11h
Postdoc position available in my group to work on ERC funded project on evolutionary biology of antibiotic resistance. Looking for someone with expertise in bacterial genetics, AMR, and evolutionary biology. www.jobs.ac.uk/job/DSZ416/p...
jobs.ac.uk
Postdoctoral Research Associate at University of Oxford
Explore an exciting academic career as a Postdoctoral Research Associate. Don't miss out on other academic jobs. Click to apply and explore more opportunities.
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Reposted by Mark Peifer (He, him)
Jeremy Fassler @jfassler.bsky.social · 21h
Katie Britt watching Eric Schmitt destroy his career, brought to you by Larry David.
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Reposted by Mark Peifer (He, him)
Shirley Luckhart @shirleyluckhart.bsky.social · 10h
Beyond disgusting. “To ensure our educational institutions remain firmly focused on this warfighting mission, we must address the structural mechanisms that have allowed civilian academic norms to dilute our focus on lethality.”
apnews.com
Military academies won't give tenure to civilian faculty, Hegseth says
The Defense Department has decided to stop appointing civilians as tenured faculty at U.S. military academies.
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Reposted by Mark Peifer (He, him)
Biology Open @biologyopen.bsky.social · 10h
Altered juvenile hormone dynamics mediate earlier foraging in Nosema-infected honey bees. Read the article by Huarong Lin and colleagues: doi.org/10.1242/bio....
N. apis infection altered JH dynamics.
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Reposted by Mark Peifer (He, him)
Jacob Öberg @profjacob.bsky.social · 12h
🚨🚨 @coe.int of Europe said yesterday that the #US formally notified it that it would leave the Group of States against Corruption, or #GRECO. Only two other countries have left GRECO before — #Russia and #Belarus. The fall of the #US on the world scene is striking. apnews.com/article/trum...
apnews.com
US withdraws from European anti-corruption panel in latest shift away from global groups
The Trump administration has withdrawn the United States from a top European anti-corruption watchdog.
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Reposted by Mark Peifer (He, him)
Chris Simms @chrisnsimms.bsky.social · 9h
Still buzzing with joy at finding all these craneflies, or daddy long legs as we call them in the UK. I was told long ago that there's a local name for them in Finland or Sweden that translates as "something in your hair". Anyone know what that word is? (Google doesn't seem to know)
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Reposted by Mark Peifer (He, him)
André Nadler @nadlerlab.bsky.social · 14h
This story in @natcellbio.nature.com by the amazing @mathilda95.bsky.social is the final flourish in a series of papers over the last year during which we reported a solution to the lipid imaging problem in biology. Stay tuned for the next chapters!
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Reposted by Mark Peifer (He, him)
Journal of Cell Science @jcellsci.bsky.social · 9h
Jin-Mo Gu, Andreas Nebenführ and colleagues discover that accelerated organelle movements can indirectly affect the motility of other organelles in plant cells. Highlight: journals.biologists.com/jcs/article/... Article: journals.biologists.com/jcs/article/...
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Reposted by Mark Peifer (He, him)
Jake_Vig @jakevig.bsky.social · 23/09/2026
WARNING: Moose will try to diagnose what is wrong with your broken vehicle.
Road sign of smashed car and moose
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Reposted by Mark Peifer (He, him)
myosinactncrazy.bsky.social @myosinactncrazy.bsky.social · 9h
www.molbiolcell.org/doi/10.1091/...
molbiolcell.org
Cell–matrix interactions drive functional compartmentalization of mitochondria during 3D migration | Molecular Biology of the Cell
Cells migrating through three-dimensional (3D) tissues adapt their mechanical properties in response to extracellular matrix architecture through migratory plasticity. In primary human dermal fibrobla...
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Reposted by Mark Peifer (He, him)
Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 9h
New Philly voice article on the fight to reopen the Academy of Natural Sciences! www.phillyvoice.com/academy-natu...
phillyvoice.com
Academy of Natural Sciences is closed, but the fight for the museum continues
A grassroots group is urging Drexel's board to disaffiliate from the institution and calling for a public process to decide its future.
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Reposted by Mark Peifer (He, him)
Charlotte Clymer @charlotteclymer.bsky.social · 20h
I heard through the grapevine that Sen. Eric Schmitt has 18 staffers on his legislative team: 17 men and one woman. The woman on his staff deals exclusively with foreign policy, which means today's disaster during the hearing was all by conservative men who don't know sports.
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Reposted by Mark Peifer (He, him)
Elizabeth Jacobs, PhD @elizabethjacobs.bsky.social · 20h
Three Florida counties have declared emergencies over Dengue Fever because the state is experiencing the most locally-transmitted cases since they began collecting the data 17 years ago.
cbs12.com
Florida counties declare local emergencies as dengue cases rise
Dengue fever is here in Florida, prompting several Florida counties to issue a state of emergency for the mosquito-borne disease.
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Reposted by Mark Peifer (He, him)
The Interactive Fly @interactivefly.bsky.social · 20h
Milano, S. N., Bayer, L. V., Ko, J. J., Casella, C. E., Bratu, D. P. (2025). The role of ER exit sites in maintaining P-body organization and integrity during Drosophila melanogaster oogenesis. EMBO Rep, 26(2):494-520 link.springer.com/article/10.1...
link.springer.com
The role of ER exit sites in maintaining P-body organization and integrity during Drosophila melanogaster oogenesis - EMBO Reports
Processing bodies (P-bodies) are cytoplasmic membrane-less organelles which host multiple mRNA processing events. While the fundamental principles of P-body organization are beginning to be elucidated...
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Reposted by Mark Peifer (He, him)
Raywat Deonandan 🍁🇨🇦 @deonandan.bsky.social · 22h
Right out of the authoritarian playbook: make the membrane between the White House and the military leadership as thin as possible. We see you.
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Reposted by Mark Peifer (He, him)
The Interactive Fly @interactivefly.bsky.social · 20h
Riparbelli, M. G., Migliorini, M., Callaini, G. (2025). Astral Microtubules Are Dispensable for Pavarotti Localization During Drosophila Spermatogonial Mitoses. Cytoskeleton (Hoboken, NJ) onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Astral Microtubules Are Dispensable for Pavarotti Localization During Drosophila Spermatogonial Mitoses
We analysed here the dynamic of the kinesin-like Pavarotti (Pav) during male gametogenesis of wild-type and Sas4 mutant flies. Pav localizes to the equatorial region and the inner central spindle of ....
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Reposted by Mark Peifer (He, him)
The Interactive Fly @interactivefly.bsky.social · 20h
Galletta, B. J., Konstantinidou, P., Haase, A. D., Rusan, N. M. (2025). A deficiency screen identifies genomic regions critical for sperm head-tail connection. G3 (Bethesda), 15(2) academic.oup.com/g3journal/ar...
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Reposted by Mark Peifer (He, him)
Soumya Rangarajan, MD, MPP @soumya-goblue.bsky.social · 20h
The University of #Michigan has been giving me the biggest headache in the last 2 1/2 years. This was an LS&A decision. The university leadership and Regents have no right to meddle in unit decisions And it’s rich that people who never went to #UMich are calling these kids coddled or- dumb?
freep.com
University of Michigan pauses grade-covering pilot program. Here's why
The University of Michigan has paused a pilot program that would have covered grades for thousands of first-year students.
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Reposted by Mark Peifer (He, him)
John MD @jwbelmon.bsky.social · 20h
Jack Smith at the Iowa v Maryland basketball game www.facebook.com/story.php?st...
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Reposted by Mark Peifer (He, him)
Jim Lokay @jimlokay.com · 29/09/2026
If you want to really know how the outrage machine gets fired up: 1. Schmitt plans to drop “bombshell” on Smith 2. Someone plants story that Schmitt is a Vance VP contender to run same day 3. Right-wing Twittersphere gets talking points 4. Schmitt steps in it 5. Scheduled tweets go out anyway
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Reposted by Mark Peifer (He, him)
Society for the Study of Evolution @sse-evolution.bsky.social · 23h
Applications are now open for the International Travel Stipends to attend the 2027 Evolution meeting in San Juan, Puerto Rico! Funds cover registration, travel, meals, and lodging. Submit your application by November 1st! www.evolutionsociety.org/content/soci... @evolmtg.bsky.social
The San Juan coastline. Text: Evolution 2027, San Juan, Puerto Rico, June 25-29. Society for the Study of Evolution International Travel Stipends, Deadline: November 1.
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Reposted by Mark Peifer (He, him)
Abdul El-Sayed @abdulelsayed.bsky.social · 29/09/2026
On Friday, October 9th, @endcitizensunited.bsky.social President Tiffany Muller and I are holding a town hall in Lansing to discuss the fight against corruption and the affordability crisis in Michigan. Join us.
mobilize.us
ECU Town Hall with Abdul El-Sayed and ECU President Tiffany Muller · End Citizens United// Let America Vote Action Fund
Join ECU President Tiffany Muller and Senate candidate Abdul El-Sayed for a town hall conversation about what it will take to fix the corruption and corporate influence in Washington. Together, they w...
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Reposted by Mark Peifer (He, him)
Katrina Velle @katrinavelle.bsky.social · 22h
Heads up to other October NIH deadliners-- if you didn't do this already it appears you do not have to.
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Reposted by Mark Peifer (He, him)
Drug Monkey @drugmonkey.bsky.social · 22h
Casting call for “Preppy douche who got away with eight college rapes because Daddy called the Dean”?
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Reposted by Mark Peifer (He, him)
chasingmicrobes @chasingmicrobes.bsky.social · 22h
Superdee duper intelligence
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Reposted by Mark Peifer (He, him)
Truthout @truthout.org · 22h
“What we would do in the next two years is exactly what we have been doing already,” Johnson said, attempting to make the case for his party retaining control of Congress ahead of the midterm elections.
buff.ly
Johnson’s Message to Midterm Voters? GOP Will Keep Doing “What We Have Been Doing” If They Win
Polling data indicates that likely voters want change, not more of the same, as the Speaker of the House is promising.
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Reposted by Mark Peifer (He, him)
The News & Observer @newsobserver.com · 22h
Exclusive: At one point, the plan was not to send out a campus email until the last day of August — the day before the G20 Innovation Ministerial.
bit.ly
How UNC worked to keep the G20 innovation summit under wraps — until it couldn’t
Exclusive: At one point, the plan was not to send out a campus email until the last day of August — the day before the G20 Innovation Ministerial.
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Reposted by Mark Peifer (He, him)
American Society for Cell Biology @ascbiology.bsky.social · 29/09/2026
Congratulations to Samantha Lewis of UC Berkeley, recipient of the 2026 WICB Junior Award for Excellence in Research recognizing outstanding early-career scientific achievement. www.ascb.org/society-news/ascb-anno…
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Reposted by Mark Peifer (He, him)
Roland Hatzenpichler @environmicrobio.bsky.social · 27/09/2026
One of the most neglected, least understood, and willingly ignored concepts in microbiology is how fast cells grown in their native habitat. We just extrapolate from cultures, which is unrealistic. I wish I could get funds to measure growth in a bunch of habitats and do some foundational work ;(
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Reposted by Mark Peifer (He, him)
Partners In Health @pih.org · 21h
Last week, PIH leaders in Haiti and Malawi shared firsthand how U.S. funding cuts are affecting health systems, patient care, and the delivery of essential programs. Missed the conversation? We’ve got you covered. Watch the full webinar: bit.ly/4iVyhQ
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Reposted by Mark Peifer (He, him)
Sarah E. Bond @sarahebond.bsky.social · 29/09/2026
My latest for National Geographic is on a stunning new ‘Fulgur Conditum’ inscription from Hadrian’s Villa that tells us a lot about how Romans reacted to lightning ⚡️ striking objects & the creation of sacred space. Thx 🙏 to Elizabeth Meyer & Alberto Samonà. www.nationalgeographic.com/history/arti...
nationalgeographic.com
The Ancient Romans Had a Strange Ritual After Thunderstorms
Archaeologists excavating at Hadrian’s Villa outside of Rome have unearthed a marble slab dedicated to Summanus, the god of nocturnal lightning.
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Reposted by Mark Peifer (He, him)
CNN @cnn.com · 23h
Airport security employees checking boarding passes and IDs at airports will no longer be allowed to sit down while working, according to the union representing them. cnn.it/4hFPkng
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Reposted by Mark Peifer (He, him)
Nature Reviews Genetics @natrevgenet.nature.com · 29/09/2026
FYI: New online! The mechanistic and evolutionary diversity of programmed DNA elimination
dlvr.it
The mechanistic and evolutionary diversity of programmed DNA elimination
Nature Reviews Genetics, Published online: 08 September 2026; doi:10.1038/s41576-026-01004-7Programmed DNA elimination is a developmentally regulated process in which specific DNA sequences are reproducibly removed from particular cell lineages. Here, the authors review the mechanistic diversity and evolutionary dynamics of DNA elimination, spanning chromosome breakage, whole-chromosome elimination and whole-genome elimination.
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Reposted by Mark Peifer (He, him)
Representative Becca Balint @balint.house.gov · 29/09/2026
It’s almost as if there are more ways to measure the value of work than just the amount of money it makes people.
 A country with fewer social workers and teaching aides, with less study of the arts and history, is a country that’s not investing in its own future.
newrepublic.com
Trump Moves to Cut Off Student Loans for Tons of Degrees
Under a new rule, if your degree doesn’t make enough money, you won’t be able to get a student loan.
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Reposted by Mark Peifer (He, him)
Katharine Hayhoe @katharinehayhoe.com · 29/09/2026
Don’t ask an elected official if they “believe” in climate change, it’s not a religion. Don’t ask if they think it’s serious: it is. Ask them what matters most: what are they doing about it? Excellent application here, 10/10 no notes 👏⬇️👏
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Reposted by Mark Peifer (He, him)
Peggy Flanagan @peggyflanagan.bsky.social · 29/09/2026
Donald Trump has spent two years attacking Minnesota, and Michele would be “honored" to have his support. That's everything you need to know about Michele Tafoya.
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Reposted by Mark Peifer (He, him)
Headquarters @headquartersnews.bsky.social · 28/09/2026
Trump claims the federal government can "supersede" Iowa and calls Iowans "troubled people"
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