Oca sapiens
ocasapiens.bsky.social
Oca sapiens
@ocasapiens.bsky.social
Sylvie Coyaud, retired science reporter, not sapiens yet.
#AGW
#adaptation
#ExtremeEvents

OA paper also for NGOs, imo.

In sub-Saharan Africa between 2005 and 2015, men's and >5 children's mortality risk increased during all types of heatwaves. For women and the elderly, it increased during nighttime and compound (i.e. day+night) heatwaves.
Escalated heatwave mortality risk in sub-Saharan Africa under recent warming trend
Nighttime heat exposure is driving increased vulnerability to heatwaves across African populations amid recent warming.
www.science.org
November 27, 2025 at 1:04 PM
#genderstudies
#publichealth

In Nordic countries, "forced restraint adopted to reduce mortality in the pre-vaccine COVID-19 pandemic [...] reduced the likelihood of death among working-age men but not among working-age women."

www.science.org/doi/10.1126/...
November 27, 2025 at 12:22 PM
#AIslop

Not even an Expression of Concern, @springernature.com?
November 27, 2025 at 12:05 PM
Wow

"When applied to surgical repair, this mechanism helped inexperienced surgeons to improve their knotting-force precision by 121%, enabling them to perform surgical knots as good as those of experienced surgeons. Moreover, [in rats] blood supply and tissue healing after surgery were improved."
November 26, 2025 at 8:46 PM
#sexualselection

Ah l'amour...

Instead of dazzling tails or crests, "to woo the ladies" Chrysolophus pictus and C. amherstiae pheasants "sport unusually obstructive toupees [...] that render [them] partially blind".
Love practically makes these birds go blind
Unusually obstructive plumage compromises the vision of two types of pheasants—a first in birds
www.science.org
November 26, 2025 at 1:57 PM
#USpolitics

The "1m lives at risk" estimate is based on Trump's aid cuts in January & in his 2026 budget proposal.

But the State Dept's "American First Global Health Strategy" will also reduce funds for Aids, TB, malaria & polio after 2026.

And "The largest European donors" have already
1/2
November 26, 2025 at 1:06 PM
#USpolitics
#Ucraina

"Inviato per trattare la pace" with a little help from his friends, Steve Witkoff, Jared Kushner & Yuri Ushakov...

(gift link, tks @bgrueskin.bsky.social)

bsky.app/profile/bgru...
November 25, 2025 at 10:18 PM
#biochemistry

"Seal milk oligosaccharides rival human milk complexity and exhibit functional dynamics during lactation"

See also www.bluewin.ch/en/news/inte...
Seal milk oligosaccharides rival human milk complexity and exhibit functional dynamics during lactation - Nature Communications
Jin et al. discovered Atlantic grey seal milk contains 332 complex sugars, including 166 novel structures. Seal milk rivals human milk complexity, includes giant molecules up to 28 sugar units, change...
www.nature.com
November 25, 2025 at 9:28 PM
#climateaction

Refrain: 🎶The times, they are a-changin'🎶

"Don’t scrap climate COPs, reform them"
"The world needs a more agile framework for climate action, but that shouldn’t mean abandoning a system that has worked for 30 years."
Don’t scrap climate COPs, reform them
The world needs a more agile framework for climate action, but that shouldn’t mean abandoning a system that has worked for 30 years.
www.nature.com
November 25, 2025 at 2:18 PM
November 25, 2025 at 2:07 PM
A proposito della Giornata internazionale per l'eliminazione della violenza sulle donne

Il Museo del Patriarcato, una mostra allestita da Action Aid-Italia nel 2148, è ancora aperto oggi dalle 15 alle 20.30 in via Flaminia 122, a Roma. Presentazione e link alla ricerca
actionaid.it/mupa/
MUPA. Museo del Patriarcato.
La mostra, visitabile in anteprima mondiale a Roma dal 20 al 25 Novembre 2025, invita a osservare criticamente il passato per riflettere sul presente e sul futuro.
actionaid.it
November 25, 2025 at 1:58 PM
#USpolitics

Nouvelles accusation[s] lunaire[s] de Candace Owens, l'auteure de "Becoming Brigitte", en quête d'un autre procès pour diffamation.
November 24, 2025 at 8:22 PM
Analisi politica da leggere, imo, oltre alla valutazione più tecnica di @carbonbrief.org

Sunto nel 🧵
November 24, 2025 at 3:26 PM
#COP30 president André Corrêa do Lago's rosy view
cop30.br/en/news-abou...
vs. Carbon Brief's clear-eyed assessment.
November 24, 2025 at 3:04 PM
#USpolitics
#humanrights

Nov. 20, 2025
The US redefines human rights
www.bbc.com/news/article...

Nov. 21, 2025
The US votes against the UN triennial resolution on “Torture and other cruel, inhuman or degrading treatment or punishment”
November 23, 2025 at 5:40 PM
#Ukraine

Are Ukraine, Europe & US meeting in Geneva without Russia to discuss who would "compensate" the US for its guarantee, and fund Dimitriev-Witkoff-Kushner's "development" plan for the annexed territories & Ukraine, should Russia agree to a "ceasefire"?
November 23, 2025 at 2:35 PM
#COP30

"The likely final text of the 'global mutirão' has been published, ahead of the closing plenary"...
bsky.app/profile/drsi...
A climate deal without explicit language calling for a fossil fuel phaseout is like a ceasefire without explicit language calling for a suspension of hostilities.
#COP30
November 22, 2025 at 3:18 PM
According to new #models, field trials & observations, airplane contrails seem to contribute less than expected to #AGW, and the fraction of long-lived ones to increase the reflectance of cirrus clouds.

OA paper www.nature.com/articles/s41...

Great explanation of the hard part 🔽- imo
My latest: Let's start with the easy part. Yes, long-lived airplane contrails warm the Earth and it's great to not do that. But just how much they warm, and where -- and how much more CO2 you can add to the atmosphere to avoid them?

That's where it gets harder.
Airplane contrails may not be the climate villain once feared
Studies raise questions about the benefits of adjusting flight paths to minimize heat-trapping clouds
www.science.org
November 22, 2025 at 2:59 PM
👀
"The first Radical Birth Keeper (RBK) school opened in 2020 and, despite its $6,000 cost, sold out. Over the next five years, it would train more than 850 “authentic midwives” from every continent."

Trained via Zoom on how to find clients online, and to give them no assistance whatsoever.
November 22, 2025 at 1:20 PM
#Ukraine

"Dmitriev, the US-savvy, Harvard-educated head of Russia’s sovereign wealth fund," met "Steve Witkoff, the property developer".

"The two men, neither of whom has any real diplomatic experience, began drafting a plan..." - that looks more like an investment plan than a peace plan.
November 21, 2025 at 3:35 PM
#Ukraine
#peacedeal draft

10. "The US will receive compensation for the guarantee".

Most of the rest concerns US-Russian investments with Russia-EU funds, under a Peace Council headed by Trump
With an amnesty for both parties' war crimes.

Like making #Gaza the "Riviera of the Middle East"
1/2
November 21, 2025 at 2:02 PM
#archeology

For centuries "the LBK [Linear Pottery culture] was a peaceful, flourishing culture."

"Then came the killings and decapitations. [...] Why did violence break out all across the LBK at the same time, and with such lasting consequences?"
In 2022, archaeologists at @uni-kiel.de's @neolithicbodies.bsky.social found 34 decapitated skeletons piled in a space the size of a parking spot. In the 3 years since, they’ve found 50 more. The mass grave is evidence for the collapse of the 1st pan-European culture 7,000 years ago. @science.org 🏺💀
Headless bodies hint at why Europe’s first farmers vanished
Wave of mass brutality accompanied the collapse of the first pan-European culture
www.science.org
November 21, 2025 at 11:12 AM
Protest works, passim

"But by Wednesday night — just one day after Harvard announced that it would probe his ties to Epstein — he had changed his mind amid mounting pressure."
November 20, 2025 at 3:19 PM
#USpolitics

According to Fox News's own poll, 76% of Americans say Trump "is doing more harm than good on the economy".

According to The Economist, it is doing more good than harm on corruption.
America is in a new era, where rules are skirted and corruption is tolerated. It did not start with Donald Trump. But he has upped the tempo and removed constraints that once held others back econ.st/3JVVAKH
November 20, 2025 at 2:58 PM
#nanomaterials
#solarenergy

Good news

Perovskites, silica hydrogels, two more papers on lanthanides today. New nanomaterials pop up every week in the few journals I read, & efficiency keeps increasing.

www.nature.com/articles/s41...

Bad news

"Policies are also lagging technology progress,
1/2
Triplets electrically turn on insulating lanthanide-doped nanoparticles - Nature
To turn on and obtain emission from lanthanide-doped insulating nanoparticles, an electrical excitation pathway coupling them to organic optical molecules to form nanohybrids is described, enabling tu...
www.nature.com
November 20, 2025 at 2:30 PM