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Reposted by Ronald Visser

NL Institute of Ecology NIOO-KNAW @niooknaw.bsky.social · 12d

New publication: Combined effects of CO2 and nitrogen on the #stoichiometry of toxin synthesis in a harmful #cyanobacterium. #climatechange #eutrophication
doi.org/10.1016/j.ha...

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Reposted by Ronald Visser

Naturalis Biodiversity Center @naturalis.bsky.social · 12d

Nederland geeft fossielen Dubois-collectie terug aan Indonesië.

Statement en meer informatie te vinden op www.naturalis.nl/persberichte...

Scheldepkapje in Dubois-collectie in zaal vroege mens

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Reposted by Ronald Visser

De Speld @speld.nl · 19d

Opa die in verzet zat tegen nazi’s blijkt lid te zijn geweest van terroristische organisatie

Opa Harm was tot voor kort dé trots van de familie: hij zat tijdens de Tweede Wereldoorlog in het verzet tegen de nazi’s.

speld.nl

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Red Hot World @redhotworld.bsky.social · 25d

When speaking to Tommy Robinson at the far right demonstration in London today, Elon Musk wore a t-shirt saying "What would Orwell think?"

So let's dive in - what would George Orwell think about Tommy Robinson and Elon Musk? 🧵

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Reposted by Ronald Visser

Sophie Labelle @assignedmale.bsky.social · 26d

The Groyper Wars

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Ronald Visser @ronaldvisser.bsky.social · 26d

Dit jaar zijn we weer met Saxion University of Applied Sciences in Hessen voor de jaarlijkse internationale Summer Academy met een groep studenten en docenten van de opleiding Archeologie.
Gisteren kwam de Duitse televisie (ZDF) op bezoek en hebben dit tv-item gemaakt!

www.zdf.de/nachrichten/...

Drone foto van de opgraving op een groene hellingen

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Reposted by Ronald Visser

The Black Trowel Collective @blacktrowel.bsky.social · Sep 2

📢 CALL TO ACTION | EAA Leadership Overturns Democratic Vote Following Threats

Intimidation tactics forced the EAA to abandon solidarity with Gaza.

Archaeologists:
Cancel membership | Speak up | Share

Full statement: blacktrowelcollective.wordpress.com/2025/09/02/b...

#EAA2025 #Archaeology #Gaza

CALL TO ACTION | EAA Leadership Overturns Democratic Vote Following Threats

Intimidation Tactics Force Archaeological Association to Abandon Gaza Solidarity Last week the executive board of the European Association of Archaeologists took the decision, in light of the ongoi…

blacktrowelcollective.wordpress.com

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Vera Moreijn @veramoreijn.bsky.social · Aug 23

PVV-programma wil trans mensen erkenning ontnemen, docenten screenen op "politieke neutraliteit", XR en Antifa als "terroristisch" aanmerken en verbieden, "Alle Syriërs terug", uit EVRM en VN-Vluchtelingenverdrag, verbod op "links-liberale seksuele indoctrinatie".

NOS: "er zijn scherpe randjes af".

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Reposted by Ronald Visser

Peter Gleick @petergleick.bsky.social · Aug 22

Want to learn something about #water and #climate change?
A simple approximation is that for every degree C of warming, the atmosphere holds 7% more water. That's one factor behind the growing number of extreme flooding events.

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Reposted by Ronald Visser

Daniel Lakens @lakens.bsky.social · Aug 17

Too often, I see people talk about a replication as if the first study has established something, and the replication study is a double-check. What people often fail to understand is that we do not do replication studies to *check* a finding, but to *establish* a finding. 1/x

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Eiko Fried @eikofried.bsky.social · Aug 17

New PNAS paper: "The entities enabling scientific fraud at scale are large, resilient, and growing rapidly"

www.pnas.org/doi/full/10....

The entities enabling scientific fraud at scale are large, resilient, and growing rapidly | PNAS

Science is characterized by collaboration and cooperation, but also by uncertainty, competition, and inequality. While there has always been some c...

www.pnas.org

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Reposted by Ronald Visser

Iris van Rooij 💭 @irisvanrooij.bsky.social · Aug 12

AI slop and the destruction of knowledge irisvanrooijcogsci.com/2025/08/12/a...

AI slop and the destruction of knowledge

This week I was looking for info on what cognitive scientists mean when they speak of ‘domain-general’ cognition. I was curious, because the nuances are relevant for something I am researching at t…

irisvanrooijcogsci.com

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Reposted by Ronald Visser

Past Horizons Archaeology Equipment @pasthorizons.bsky.social · Aug 12

www.bbc.co.uk/news/article...
The artefact, believed to be one of only three similar headpieces remaining in the world, was held in storage at Bolton Museum for more than a century until a private donation led to its restoration.

Bolton Museum displays rare Roman sun hat following restoration

The 2,000-year-old hat, which kept soldiers cool in Ancient Egypt, is one of only three in the world.

www.bbc.co.uk

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Reposted by Ronald Visser

Leo Lucassen @leol.bsky.social · Aug 12

Over de kosten van xenofobie (maar ook het CDA en illegaliteit)

www.socialevraagstukken.nl/waarom-xenof...

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Reposted by Ronald Visser

Peter Gleick @petergleick.bsky.social · Aug 7

The Trump administration has deleted all previous National #Climate Assessments from government websites and fired the scientists working on the next report. Now they say they're going to rewrite the previous ones.
This is scientific sabotage and a rewriting of history.

www.cnn.com/2025/08/07/c...

Energy chief suggests Trump administration is altering previously published climate reports | CNN

Wright said the Trump administration is updating the National Climate Assessments that have been previously published, which the administration recently removed from government websites.

www.cnn.com

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Reposted by Ronald Visser

Brian J. Enquist @bjenquist.bsky.social · Aug 1

Yes, many tropical trees have annual rings! Great to contribute to this global synthesis led by @pieterzuidema.bsky.social, indicating stronger droughts w climate change may shift observed more resilient responses toward more widespread decreases in productivity www.science.org/doi/10.1126/... 🧪🌾🌐

Pantropical tree rings show small effects of drought on stem growth

Increasing drought pressure under anthropogenic climate change may jeopardize the potential of tropical forests to capture carbon in woody biomass and act as a long-term carbon dioxide sink. To evalua...

www.science.org

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Reposted by Ronald Visser

Vito Hernandez @ingatkatandaan.bsky.social · Aug 2

Read the latest from the @flindersuniversity.bsky.social #Archaeology #humanevolution and #dispersal Research Group, @richardjhewitt.bsky.social @mikegeoarch.bsky.social and yours truly, and @Universidad de Alcalá archaeologist @Manuel Alcaraz-Castaño.

link.springer.com/article/10.1...

Modelling Mobility of Hunter-Gatherer Populations: A Dynamic Simulation Approach Based on Cellular Automata - Journal of Archaeological Method and Theory

Understanding mobility of past hunter-gatherer populations requires dynamic approaches which incorporate uncertainty. Least cost models assume complete knowledge of the terrain on the part of the trav...

link.springer.com

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Henriette Baron @henriettebaron.bsky.social · Aug 3

www.faz.net/aktuell/gese...

Forscher bitten um Katzenvideos: „Wir benötigen Ihre Hilfe“

Sie haben eine Katze – und filmen Ihr Tier gerne? Dann könnten Sie ein Forschungsprojekt an der Ruhr-Universität unterstützen: Das Team bittet um Cat Content. So will es etwa mehr über die Schlafposit...

www.faz.net

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Reposted by Ronald Visser

ChrisO_wiki @chriso-wiki.bsky.social · Aug 2

1/ Donald Trump's reasons for his firing of the head of the US Bureau of Labor Statistics are an ominous echo of a notorious concept from Stalinist Russia and Nazi Germany: that of scapegoating individuals or groups as economic "wreckers" or "saboteurs". ⬇️

Soviet poster titled "The enemy is full of guile and evil" - espionage, sabotage, slander, provocations, lies

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Reposted by Ronald Visser

Melaine Le Roy @subfossilguy.bsky.social · Aug 2

Continents are drying! 🔥 🧊 💧

- 75% of the population lives in 101 countries that have been losing freshwater.
- the continents now contribute more freshwater to sea level rise than the ice sheets
- drying regions now contribute more than land glaciers and ice caps

www.science.org/doi/10.1126/...

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Reposted by Ronald Visser

TrowelBlazers @trowelblazers.bsky.social · Aug 1

So gdm angry about this. And not just a little scared. They have new ways to silence scientists now

Brenna Hassett @brennawalks.bsky.social · Aug 1

Like science? Then you better be interested when *someone* starts putting out hit pieces on scientists. This is beyond the pale ethically and honestly anyone who doesn’t want to slide to hell on a slick of ai generated content that benefits billionaire business, maybe now is the time to get angry.

New scientist headline critics of de extinction hit by mystery smear campaign

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Reposted by Ronald Visser

Zack Labe @zacklabe.com · Aug 1

Great news and well done @nsidc.bsky.social!

"NOAA@NSIDC is pleased to announce the release of Sea Ice Index, Version 4.

This new version uses input data from the JAXA GCOM-W1 AMSR2 instrument for 1 January 2025 through forward processing."

New version release: NOAA/NSIDC Sea Ice Index, Version 4 | National Snow and Ice Data Center

NOAA@NSIDC is pleased to announce the release of Sea Ice Index, Version 4.

nsidc.org

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Ronald Visser @ronaldvisser.bsky.social · Jul 30

Dank voor het delen! Leuk stuk van Theo Toebosch geworden

Het hele proefschrift is hier te vinden: doi.org/10.5463/thes...

Relating Roman Rings: An interdisciplinary study using archaeology, data science and tree rings to understand timber provision in the German Provinces of the Roman Empire

doi.org

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🇺🇦 paul q. brussée @paulbrussee.bsky.social · Jul 30

„Het lijkt er op dat het Romeinse leger als het hout van verder weg haalde, zich wel beperkte tot Germania Inferior. Mogelijk hing dat samen met de juridische grenzen van de provincie.”
@ronaldvisser.bsky.social

Theo Toebosch @nrcwetenschap.bsky.social #archeologie
www.nrc.nl/nieuws/2025/...

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Ingrid Robeyns @ingridrobeyns.bsky.social · Jul 26

ik heb het verstuurd. Niet naar Schoof, want die heeft zijn email adres goed verborgen. IK hoop dat velen van jullie ook een email zullen sturen; het is een van de dingen die Sigrid Kaag in haar interview vandaag zei dat we kunnen doen. Dus, doen!

www.linkedin.com/posts/ingrid...

Geachte mevrouw Yezilgös, mevrouw van der Plas en mevrouw van Vroonhoven, | Ingrid Robeyns 🟥

Geachte mevrouw Yezilgös, mevrouw van der Plas en mevrouw van Vroonhoven, Vanochtend bezocht ik het concentratiekamp Sachsenhausen, 30 kilometer ten noorden van Berlijn. En van de strategieën van d...

www.linkedin.com

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