Mark Peifer (He, him)
@peiferlabunc.bsky.social
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
https://peiferlab.web.unc.edu
Diversity, equity & Inclusion are core American Values
https://peiferlab.web.unc.edu
Reposted by Mark Peifer (He, him)
My IRL friend's dad, a Laotian refugee, was seized by ICE and sent to a concentration camp in El Paso. His family is fundraising to afford legal fees. I'd really appreciate it if you could help. gofund.me/383933317
Donate to Bring Korey Home to His Family and Community, organized by Lily Moua
This is our brother, Korey.
Korey is one of the gentlest people we know. He… Lily Moua needs your support for Bring Korey Home to His Family and Community
gofund.me
February 8, 2026 at 9:30 PM
My IRL friend's dad, a Laotian refugee, was seized by ICE and sent to a concentration camp in El Paso. His family is fundraising to afford legal fees. I'd really appreciate it if you could help. gofund.me/383933317
Reposted by Mark Peifer (He, him)
By late Friday afternoon, the Department of Homeland Security put out a statement saying authorities had received Abreu-Vasquez's medications and that ICE would work to ensure he received them.
But on Sunday afternoon, his wife told MPR News that he still hadn't received the life-saving medication.
But on Sunday afternoon, his wife told MPR News that he still hadn't received the life-saving medication.
Kidney recipient arrested by ICE in Rochester last week still isn't getting needed medications
The wife of a kidney transplant recipient tells MPR News that four days after his arrest, the man still has not received the medications he needs to keep his body from rejecting the kidney.
www.mprnews.org
February 8, 2026 at 9:05 PM
By late Friday afternoon, the Department of Homeland Security put out a statement saying authorities had received Abreu-Vasquez's medications and that ICE would work to ensure he received them.
But on Sunday afternoon, his wife told MPR News that he still hadn't received the life-saving medication.
But on Sunday afternoon, his wife told MPR News that he still hadn't received the life-saving medication.
Reposted by Mark Peifer (He, him)
Donald Trump won this district in Louisiana by 13 points in 2024.
The Democrat just crushed a Republican extremist in this district by 24 points.
Folks, that’s a 37 point swing to the left. We can compete everywhere and win anywhere. Let’s keep this up!
The Democrat just crushed a Republican extremist in this district by 24 points.
Folks, that’s a 37 point swing to the left. We can compete everywhere and win anywhere. Let’s keep this up!
February 8, 2026 at 3:18 PM
Donald Trump won this district in Louisiana by 13 points in 2024.
The Democrat just crushed a Republican extremist in this district by 24 points.
Folks, that’s a 37 point swing to the left. We can compete everywhere and win anywhere. Let’s keep this up!
The Democrat just crushed a Republican extremist in this district by 24 points.
Folks, that’s a 37 point swing to the left. We can compete everywhere and win anywhere. Let’s keep this up!
Reposted by Mark Peifer (He, him)
“Triple-tap” here means the IDF bombed the journalists at the hospital and then bombed emergency responders not once but TWICE:
There is simply no moral argument for allowing war criminals to compete at the Olympics.
February 8, 2026 at 4:56 PM
“Triple-tap” here means the IDF bombed the journalists at the hospital and then bombed emergency responders not once but TWICE:
Reposted by Mark Peifer (He, him)
Hey Philly, need valentines day plans??
Start the day off right at the Artpocalypse Now! art market.
Some of Philly's best and single-est* artists will be there selling art, candles, jewelry, and more!
RSVP to get a calendar invite 😘 luma.com/rklq2zm5
*ok, not all of us, but many of us.
Start the day off right at the Artpocalypse Now! art market.
Some of Philly's best and single-est* artists will be there selling art, candles, jewelry, and more!
RSVP to get a calendar invite 😘 luma.com/rklq2zm5
*ok, not all of us, but many of us.
February 8, 2026 at 4:43 PM
Hey Philly, need valentines day plans??
Start the day off right at the Artpocalypse Now! art market.
Some of Philly's best and single-est* artists will be there selling art, candles, jewelry, and more!
RSVP to get a calendar invite 😘 luma.com/rklq2zm5
*ok, not all of us, but many of us.
Start the day off right at the Artpocalypse Now! art market.
Some of Philly's best and single-est* artists will be there selling art, candles, jewelry, and more!
RSVP to get a calendar invite 😘 luma.com/rklq2zm5
*ok, not all of us, but many of us.
Reposted by Mark Peifer (He, him)
Coordinating mRNA maturation: The U1 relay model
Coordinating mRNA maturation: The U1 relay model
Yoon et al. provide a broad overview of how all the RNA processing steps are intimately linked to transcription and to one another. They propose a U1 relay model as a general framework for understanding the mechanism for coupling transcription and RNA processing.
dlvr.it
February 8, 2026 at 4:20 PM
Coordinating mRNA maturation: The U1 relay model
Reposted by Mark Peifer (He, him)
A sweeping boycott has begun — targeting tech giants who participants believe are enabling President Trump and his immigration crackdown.
DVDs and public transit: Boycott drives people to ditch Big Tech to protest ICE
A sweeping boycott has begun — targeting tech giants who participants believe are enabling President Trump and his immigration crackdown.
n.pr
February 8, 2026 at 6:48 AM
A sweeping boycott has begun — targeting tech giants who participants believe are enabling President Trump and his immigration crackdown.
Reposted by Mark Peifer (He, him)
Then abolish ICE my dude
Don’t let him distract us. We must continue the work to end his attacks on communities, health care, economic well-being, and our constitution.
February 8, 2026 at 5:32 PM
Then abolish ICE my dude
Reposted by Mark Peifer (He, him)
BREAKING: The Epstein survivors are releasing this ad on this Super Bowl Sunday to send the message that they will not “move on” from the largest sex trafficking scandal in the world. #standwithsurvivors
February 8, 2026 at 5:07 PM
BREAKING: The Epstein survivors are releasing this ad on this Super Bowl Sunday to send the message that they will not “move on” from the largest sex trafficking scandal in the world. #standwithsurvivors
Reposted by Mark Peifer (He, him)
“Since the late 1990s, the college's growth in San Francisco had increasingly overlapped with the personal financial interests of several trustees, some of whom owned property in Potrero Hill and entered into real estate deals with the school“
unbelievable
unbelievable
“California College of the Arts gambled on a major campus expansion. Here’s what went wrong” archive.ph/KnydJ
February 8, 2026 at 5:23 PM
“Since the late 1990s, the college's growth in San Francisco had increasingly overlapped with the personal financial interests of several trustees, some of whom owned property in Potrero Hill and entered into real estate deals with the school“
unbelievable
unbelievable
Reposted by Mark Peifer (He, him)
Gorgeous warm sunny day in Minneapolis, perfect day to be out around the lakes for a walk/run. So guess where ICE was today – driving around Lake Harriet Parkway, presumably looking for brown people tempted by some warm temperatures and sun.🤬🤬🤬
February 8, 2026 at 5:37 PM
Gorgeous warm sunny day in Minneapolis, perfect day to be out around the lakes for a walk/run. So guess where ICE was today – driving around Lake Harriet Parkway, presumably looking for brown people tempted by some warm temperatures and sun.🤬🤬🤬
Reposted by Mark Peifer (He, him)
If you are upset about the WP layoffs and the billionaire takeover of the press, consider cancelling your Amazon Prime membership and stop giving them so much business. It took us a while to adjust from the convenience of it when we quit but it was worth it.
Former Washington Post journalists have launched a GoFundMe to help repatriate fired staff members who are effectively stranded in foreign countries.
One of the richest men in the world fired them from the paper and didn’t even pay to ensure they got home.
Abolish the billionaire class:
One of the richest men in the world fired them from the paper and didn’t even pay to ensure they got home.
Abolish the billionaire class:
Donate to Support for Washington Post international employees, organized by Michelle Lee
Among the hundreds of journalists laid off by The Washington Post on … Michelle Lee needs your support for Support for Washington Post international employees
www.gofundme.com
February 8, 2026 at 1:28 PM
If you are upset about the WP layoffs and the billionaire takeover of the press, consider cancelling your Amazon Prime membership and stop giving them so much business. It took us a while to adjust from the convenience of it when we quit but it was worth it.
Reposted by Mark Peifer (He, him)
UNC should take heed...
“California College of the Arts gambled on a major campus expansion. Here’s what went wrong” archive.ph/KnydJ
February 8, 2026 at 5:43 PM
UNC should take heed...
Reposted by Mark Peifer (He, him)
NEW: Registration is now FREE for graduate students and postdocs for the 14th Annual Yosemite Symbiosis workshop. THANKS to the Gordon and Betty Moore Foundation! Space is limited. Learn more and REGISTER here: snri.ucmerced.edu/form/symbios...
February 8, 2026 at 5:29 PM
NEW: Registration is now FREE for graduate students and postdocs for the 14th Annual Yosemite Symbiosis workshop. THANKS to the Gordon and Betty Moore Foundation! Space is limited. Learn more and REGISTER here: snri.ucmerced.edu/form/symbios...
Reposted by Mark Peifer (He, him)
FAMU can't use the word Black on anything posted around campus related to Black History Month, to stay in compliance with Florida state laws against DEI. Black students can't use the word Black at their Historically Black College during Black History Month.
February 8, 2026 at 2:28 PM
FAMU can't use the word Black on anything posted around campus related to Black History Month, to stay in compliance with Florida state laws against DEI. Black students can't use the word Black at their Historically Black College during Black History Month.
Reposted by Mark Peifer (He, him)
In a long-form piece, I address recent claims by the Editor-in-Chief of @science.org that "quiet" insiders rather than "heated" activists should be credited for passage of top-line budget numbers for science and medical research.
joshuasweitz.substack.com/p/science-ad...
joshuasweitz.substack.com/p/science-ad...
Science Advocacy: The Risks of Playing the Long Game vs. Playing the Game For Too Long
Reflecting on the establishment view of recent ‘wins’ for research and what real winning looks like when public-facing advocacy is credited and included in broader coalitions.
joshuasweitz.substack.com
February 8, 2026 at 4:46 PM
In a long-form piece, I address recent claims by the Editor-in-Chief of @science.org that "quiet" insiders rather than "heated" activists should be credited for passage of top-line budget numbers for science and medical research.
joshuasweitz.substack.com/p/science-ad...
joshuasweitz.substack.com/p/science-ad...
Reposted by Mark Peifer (He, him)
February 8, 2026 at 4:49 PM
Reposted by Mark Peifer (He, him)
Massie: "I vote with the president 91% of the time. The 9% of the time my party is taking for pedophiles, bankrupting this country, or starting another war, I don't vote with them. And they want 100% compliance. That's why they're trying to take me out."
February 8, 2026 at 4:31 PM
Massie: "I vote with the president 91% of the time. The 9% of the time my party is taking for pedophiles, bankrupting this country, or starting another war, I don't vote with them. And they want 100% compliance. That's why they're trying to take me out."
Reposted by Mark Peifer (He, him)
BASH: Is this measles outbreak a consequence of the administration undermining support for vaccines?
DR OZ: I don't believe so. Secretary Kennedy has been advocating for measles vaccines
BASH: Oh, come on
DR OZ: I don't believe so. Secretary Kennedy has been advocating for measles vaccines
BASH: Oh, come on
February 8, 2026 at 2:29 PM
BASH: Is this measles outbreak a consequence of the administration undermining support for vaccines?
DR OZ: I don't believe so. Secretary Kennedy has been advocating for measles vaccines
BASH: Oh, come on
DR OZ: I don't believe so. Secretary Kennedy has been advocating for measles vaccines
BASH: Oh, come on
Reposted by Mark Peifer (He, him)
Some friends and I wrote a review with @biologists.bsky.social !! Together with Esther Becker and Simone Mayer, we explore the state of the cerebellum organoid field and offer practical guidance on getting this model system started in your own lab. journals.biologists.com/dmm/article/...
Generating cerebellar organoids from pluripotent stem cells
Summary: This Special Article provides a comprehensive overview of the methods, applications and considerations for the generation of cerebellar organoids.
journals.biologists.com
February 8, 2026 at 4:25 PM
Some friends and I wrote a review with @biologists.bsky.social !! Together with Esther Becker and Simone Mayer, we explore the state of the cerebellum organoid field and offer practical guidance on getting this model system started in your own lab. journals.biologists.com/dmm/article/...
Reposted by Mark Peifer (He, him)
I've mentioned it before, but when I volunteered for my local library's literacy program, one of the most commonly cited reasons older adults cited for participating was to "read my medication labels."
according to a pediatric ER doctor my wife follows on Instagram they have started to see children coming in sick because their parents are asking ChatGPT what the correct dosage is on over the counter medication instead of just looking at the instructions on the bottle
One of the easiest ways to shoot down the idea that "AI" is an expert is to show how it deals with something people know about.
Younger readers may not get this as most appliances come pre-wired, but anyone 35+ can see these are chaotic fire hazards.
From Mastodon, AI asked how to wire a plug:
Younger readers may not get this as most appliances come pre-wired, but anyone 35+ can see these are chaotic fire hazards.
From Mastodon, AI asked how to wire a plug:
February 8, 2026 at 4:38 PM
I've mentioned it before, but when I volunteered for my local library's literacy program, one of the most commonly cited reasons older adults cited for participating was to "read my medication labels."
Reposted by Mark Peifer (He, him)
With tax season in full swing, here's our reminder that TurboTax owner Intuit spent two decades fighting to prevent Americans from filing their taxes online for free.
(Published 2019)
(Published 2019)
Inside TurboTax’s 20-Year Fight to Stop Americans From Filing Their Taxes for Free
Using lobbying, the revolving door and “dark pattern” customer tricks, Intuit fended off the government’s attempts to make tax filing free and easy, and created its multi-billion-dollar franchise.
www.propublica.org
February 8, 2026 at 4:00 AM
With tax season in full swing, here's our reminder that TurboTax owner Intuit spent two decades fighting to prevent Americans from filing their taxes online for free.
(Published 2019)
(Published 2019)
Reposted by Mark Peifer (He, him)
Hello epithelial mechanics fans!! I’m Juanma @juanmagararc.bsky.social 👋 I work on cell mechanics (see celldynamicslab.com) and use Flipper-TR FLIM to probe membrane biophysics in cells.
Join me on this tour about Flipper: what it measures, strengths, advice, cool case studies, and cute drawings!
Join me on this tour about Flipper: what it measures, strengths, advice, cool case studies, and cute drawings!
February 8, 2026 at 7:59 AM
Hello epithelial mechanics fans!! I’m Juanma @juanmagararc.bsky.social 👋 I work on cell mechanics (see celldynamicslab.com) and use Flipper-TR FLIM to probe membrane biophysics in cells.
Join me on this tour about Flipper: what it measures, strengths, advice, cool case studies, and cute drawings!
Join me on this tour about Flipper: what it measures, strengths, advice, cool case studies, and cute drawings!
Reposted by Mark Peifer (He, him)
Soren Stevenson lost his eye to police rubber bullets at the George Floyd protests. Now at 31, he's a Minneapolis city council member in the ward where both Floyd was murdered and federal agents killed Renée Good. He lived through state violence. Now he's fighting to END it. This is leadership.
He lost an eye in the George Floyd protests. Now he represents the ward where Renée Good was killed.
Meet Minneapolis city council member Soren Stevenson.
www.motherjones.com
February 7, 2026 at 11:35 PM
Soren Stevenson lost his eye to police rubber bullets at the George Floyd protests. Now at 31, he's a Minneapolis city council member in the ward where both Floyd was murdered and federal agents killed Renée Good. He lived through state violence. Now he's fighting to END it. This is leadership.
Reposted by Mark Peifer (He, him)
And the winner is...📨
WHOI-affiliated scientist Alan Seltzer was just awarded one of the highest early-career honors in geochemistry, the F.G. Houtermans Award!🎉 Learn how he's tackling big questions about how the ocean, atmosphere, and Earth’s interior are connected: go.whoi.edu/alan-seltzer
WHOI-affiliated scientist Alan Seltzer was just awarded one of the highest early-career honors in geochemistry, the F.G. Houtermans Award!🎉 Learn how he's tackling big questions about how the ocean, atmosphere, and Earth’s interior are connected: go.whoi.edu/alan-seltzer
February 6, 2026 at 5:34 PM
And the winner is...📨
WHOI-affiliated scientist Alan Seltzer was just awarded one of the highest early-career honors in geochemistry, the F.G. Houtermans Award!🎉 Learn how he's tackling big questions about how the ocean, atmosphere, and Earth’s interior are connected: go.whoi.edu/alan-seltzer
WHOI-affiliated scientist Alan Seltzer was just awarded one of the highest early-career honors in geochemistry, the F.G. Houtermans Award!🎉 Learn how he's tackling big questions about how the ocean, atmosphere, and Earth’s interior are connected: go.whoi.edu/alan-seltzer