Lightnews — Scholar-powered news

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C&EN (Chemical & Engineering News) @cenmag.bsky.social · 2d

After some biochemical sleuthing, scientists now think they have identified one of the molecular mechanisms that gives these wrinkly darlings their longevity: cen.acs.org/biological-c... #chemsky 🧪

The naked mole rat’s molecular secrets to a long life

Just 4 amino acids in an enzyme associated with DNA repair give the rodents longevity

cen.acs.org

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Madhu Pai, MD, PhD @madhupai.bsky.social · 2d

Immigrant scientists make a massive contribution wherever they go

More than 30% of this century’s science Nobel prizewinners immigrated

www.nature.com/articles/d41...

More than 30% of this century’s science Nobel prizewinners immigrated: see their journeys

The most common destination for eventual Nobel laureates in physics, chemistry and medicine since 2000 is the United States, Nature has found.

www.nature.com

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Catherine Marler @cmarler.bsky.social · 1d

You’ve betrayed us, why? Please please don’t support Trump. It will destroy our democracy. There has to be a better way to solve the problems that you perceive in our country. You mention talented graduate students above, but how many will there be once the universities are destroyed.

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Stealthgirl 🫘 @stealthgirl21.bsky.social · 1d

Despite the GOP talking points, WE can stay peaceful

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New York Attorney General Letitia James @newyorkstateag.bsky.social · 2d

This is nothing more than a continuation of the president’s desperate weaponization of our justice system.

I am not fearful — I am fearless.

We will fight these baseless charges aggressively, and my office will continue to fiercely protect New Yorkers and their rights..

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MeidasTouch @meidastouch.com · 6d

Letting the health care tax credits expire would devastate American families — and we’re making that crystal clear by giving you the data.

We’ve built graphics showing how much costs would rise in every GOP district.

Let’s start with Mike Johnson (R-LA):

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Samantha Lauby, PhD @secondrodentmom.bsky.social · 7d

I'm excited to share our latest preprint on the impacts of maternal licking/grooming on estrogen receptor signaling and genome-wide changes in gene expression and DNA methylation in prenatal bisphenol-exposed pups!

Now back to applying for TT jobs in 🇨🇦...

#neuroskyence
🐀🧠🧬
doi.org/10.1101/2025...

Postnatal maternal care impacts hypothalamic Esrrg gene expression, co-expression profiles, and the DNA methylome in prenatal bisphenol-exposed rats

Environmental exposures co-occurring during early life have a profound influence on neurodevelopment. Our previous work in rats suggests that postnatal maternal care modulates the effects of prenatal ...

www.biorxiv.org

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KOJAMF🤘🖤🤘 @kojamf.bsky.social · 7d

Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.

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Catherine Marler @cmarler.bsky.social · 7d

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Nereide @drnereide.bsky.social · 9d

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Stunning image captured, at Arches National Park in Utah, by photographer Zach Cooley on 28 October 2020 when the Moon was in waxing gibbous phase with an illumination of 91%.

Precisely, 91% was the percentage illuminated by the Sun.

➡️ www.dailymail.co.uk/news/article...

🔭 🧪 #science #sciart

The photo shows the Moon in waxing gibbous phase with an illumination of 91%, captured at Arches National Park in Utah, on 28 October 2020. The Moon creates the effect of a giant eye as it passes behind a rock arch.

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Robert Reich @rbreich.bsky.social · 11d

Let's continue to build solidarity by peacefully opposing our tyrant-in-chief at No Kings Day 2.0 on October 18. There are currently over 2,000 events planned nationwide. More details here: https://www.nokings.org

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Kimberly Nicholas @kimberlynicholas.bsky.social · 11d

A deep dive on high-impact #ClimateAction from #BBC! As I told Jocelyn Timperley, "Hopefully people going through the jointheshift.earth guide will have a bit of an aha moment, realising, 'wait a minute, I have more power than I thought, and there's more that I can do'."
www.bbc.com/future/artic...

Care about climate change? The evidence shows these are the most impactful actions you can take

Care about climate change? Here's what the evidence shows are the most effective things you can do.

www.bbc.com

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Alt National Park Service @altnps.bsky.social · 10d

🙏 💚

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Drug Monkey @drugmonkey.bsky.social · 11d

if I make any snide comments about NIH not living up to its fine talk on diversity and their gaslighting promises which lead to a failure to live up even to the seemingly promised $ commitment...

FY2024 Roundup on the Diversity PAR from the NIH drugmonkey.wordpress.com/2024/10/08/f...

FY2024 Roundup on the Diversity PAR from the NIH

As you will recall, one thing that the NIH did to try to address that nagging problem called the Ginther Gap was to issue PAR-22-181 Research Opportunities for New and “At-Risk” Investi…

drugmonkey.wordpress.com

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Anne Hilborn @annewhilborn.bsky.social · 17d

CA Biology job alert
My unit at the CA Dep of Fish and Wildlife is hiring a permanent position to write 5 year reviews for species listed under the CA Endangered Species Act.
Based in West Sacramento, currently 2x week in office.
I am happy to answer questions
calcareers.ca.gov/CalHrPublic/...

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Mari Sosa @marisosa.bsky.social · 19d

The Sosa Lab website is now live!
www.sosaneurolab.com

We will be seeking a postdoctoral researcher to join the growing team! If you are a rodent neuroscientist and interested in doing systems neuro work in the mountains 🏔️, please check out the "Join" page.

Sosa Lab

www.sosaneurolab.com

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Catherine Marler @cmarler.bsky.social · 19d

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Ben Saunders @bensaunders.bsky.social · 24d

For those interested in a neuroscience PhD - the University of Minnesota Graduate Program in Neuroscience www.neuroscience.umn.edu is hosting virtual open house events coming up on Oct 6th and Oct 30th. Learn about the program and meet students and faculty! Register here: forms.gle/kANEp4Fmd3ut...

Information flyer for graduate program in neuroscience at the University of Minnesota. Virtual open house events on October 6th and 30th.

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Reposted by Catherine Marler

Jessica Dobson @jessica-dobson.bsky.social · 25d

Super happy to share the first chapter of my PhD, published in the Journal of the Royal Society Interface ✨🐀 royalsocietypublishing.org/doi/10.1098/...
Iridescence in mammals is not as rare as we thought, but it’s all created in the same way!

Rainbow-like colours in the fur of a tropical rat (Otomys tropicalis)

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Julie Charlton @juliecharlton.bsky.social · 20d

🛑 Attention researchers who train freely-moving rodents!

Jess Breda and I developed a protocol for training center-port nose fixation 61% faster than a previous curriculum while keeping violation rates low.

Preprint here: www.biorxiv.org/content/10.1...

FixGrower: An efficient and robust curriculum for shaping fixation behavior in rodents

Center-port fixation is a common prerequisite for many freely-moving rodent tasks in neuroscience and psychology. However, typical protocols for shaping this behavior are non-standardized and ineffici...

www.biorxiv.org

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Carl T. Bergstrom @carlbergstrom.com · 20d

Yet again, machine learning — even gussied up via the transformer architecture — encodes and reinforces societal biases.

This study reveals that LLM-based peer review relies heavily on author institution in its decisions.

arxiv.org/abs/2509.15122

Prestige over merit: An adapted audit of LLM bias in peer review

Large language models (LLMs) are playing an increasingly integral, though largely informal, role in scholarly peer review. Yet it remains unclear whether LLMs reproduce the biases observed in human de...

arxiv.org

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Orel Beilinson @orelb.bsky.social · 22d

The Executive Order does not appear to exempt professors (who are exempt from various other working visa conditions) from the 100,000 USD fee. That means that no university will hire foreign professors. American academia is toasted.

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Armin Lak @laklab.bsky.social · 22d

Beautiful and clear results showing that temporal difference error calculation is hardwired in the dopamine/striatum mircocircuits: www.biorxiv.org/content/10.1...
from @malcolmgcampbell.bsky.social and @naoshigeuchida.bsky.social

A hardwired neural circuit for temporal difference learning

The neurotransmitter dopamine plays a major role in learning by acting as a teaching signal to update the brain's predictions about rewards. A leading theory proposes that this process is analogous to...

www.biorxiv.org

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ProPublica @propublica.org · 21d

Earlier this year, ProPublica found that the sepsis rate in second-trimester pregnancy loss hospitalizations increased by more than 50% under Texas’ abortion ban.

Here’s how we did our analysis.

(Published Feb. 2025)

Texas Won’t Study How Its Abortion Ban Impacts Women, So We Did

Since Texas banned abortion, no one has studied the statewide effects on pregnant women experiencing complications. Here’s how we sifted through data on millions of pregnancy hospitalizations and anal...

www.propublica.org

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