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Jan Trnka

@jantrnka

Scientist, teacher, wanderer, musician. Cancer metabolism, mitochondria, Bayesian #rstats at Charles University. ORCID https://orcid.org/0000-0002-1786-7562 Lectures https://www.youtube.com/@jantrnka227 Music https://severninastupiste.bandcamp.com

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Latest posts by Jan Trnka @jantrnka

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Pollen analysis indicates 9,000-year-old Shaman had a floral burial New scientific research has shed fresh light on one of Central Europe’s most remarkable archaeological discoveries — the 9,000-year-old grave of the so-called “Shaman of Bad Dürrenberg” in Germany. - ...

Pollen analysis indicates 9,000-year-old Shaman had a floral burial share.google/IOppUhg7gHOw...

08.03.2026 09:35 👍 114 🔁 25 💬 2 📌 1
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Shift in the Gulf Stream could signal ocean current collapse Models show that as the Atlantic Meridional Overturning Circulation gets weaker, the Gulf Stream will drift northwards. There are signs that this is already happening, and a more abrupt shift could wa...

A gradual northward shift in the Gulf Stream has provided more evidence that the system of currents keeping Europe warm is weakening. And modelling suggests that abrupt shift in the Gulf Stream could signal an imminent, catastrophic collapse in the ocean current.
www.newscientist.com/article/2518...

07.03.2026 15:26 👍 437 🔁 231 💬 42 📌 28

Ou šit! :-)

06.03.2026 18:19 👍 1 🔁 0 💬 0 📌 0

vs platy/mzdy

06.03.2026 17:08 👍 3 🔁 0 💬 1 📌 0
Statistical Rethinking Lecture B09 - Generalized Linear Madness
Statistical Rethinking Lecture B09 - Generalized Linear Madness YouTube video by Richard McElreath

Lecture B09 of Stat Rethinking 2026: Generalized Linear Madness. Two examples of analyses that build up from scientific models first. #1 allometry predicts weight from height with ZERO parameters. #2 Vibrant ODEs for time series instead of cold dead lag models. Fully coded and animated with love.

06.03.2026 14:10 👍 36 🔁 4 💬 0 📌 0

Což už do jisté míry byl i Gates.

06.03.2026 13:46 👍 2 🔁 0 💬 0 📌 0
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Historian here history first time as tragedy the second time as farce.

05.03.2026 14:11 👍 6067 🔁 2158 💬 116 📌 126
Solomon R. Guggenheim Museum, New York
Solomon R. Guggenheim Founding Collection, By gift

Solomon R. Guggenheim Museum, New York Solomon R. Guggenheim Founding Collection, By gift

Place de la Concorde, Winter by Georges Seurat, 1882
https://botfrens.com/collections/212/contents/137422

05.03.2026 19:05 👍 37 🔁 7 💬 0 📌 0
Scientists discovered a caterpillar that murders insects and stitches their dismembered body parts onto its back as armor

Scientists discovered a caterpillar that murders insects and stitches their dismembered body parts onto its back as armor

You’re welcome. Happy day! 😆

05.03.2026 16:57 👍 3527 🔁 607 💬 310 📌 308

For some time I used to mix them up in English, now I know the reason!

05.03.2026 19:09 👍 1 🔁 0 💬 0 📌 0

Fakt nechci, aby Ádvojka zanikla. Nic srovnatelně aktuálního, obzory rozšiřujícího a kvalitně udělaného u nás není a ta obtýdenní zásilka by mi fakt chyběla. Předplácím i přispěju.

05.03.2026 18:58 👍 10 🔁 0 💬 1 📌 0
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Freiheit ohne Gleichheit ist Ausbeutung.
Gleichheit ohne Freiheit ist Unterdrückung.
Solidarität ist die Quelle von Freiheit und Gleichheit.

Rosa Luxemburg,
geboren am 5. März 1871

05.03.2026 07:37 👍 471 🔁 115 💬 9 📌 4

Krásný, Arane!

05.03.2026 11:32 👍 1 🔁 0 💬 1 📌 0
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This is not my image, nor was it my camera. My hats off to whoever took this beautiful picture. It shows that life will allow more than one species to benefit from one thing at once. Even Bees and Hummingbirds can share water or nectar.

05.03.2026 00:25 👍 2120 🔁 336 💬 46 📌 16

Á, už tu máme naše RFK jr...

Lidi, očkujte se, i na tu chřipku, navíc už přichází ještě účinnější mRNA vakcíny!

05.03.2026 07:28 👍 18 🔁 4 💬 0 📌 0
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Ah, yes, the invaluable wisdom of the markets.

04.03.2026 12:00 👍 3632 🔁 507 💬 79 📌 81
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dnes jsme v Ádvojce vydali tohle skvělý číslo. jen jsme ho kvůli Klempířovi a katastrofálním škrtům Ministerstva kultury dělali zadarmo.

kolaps hrozí celému literárnímu sektoru. A2 zatím nejlíp podpoříte předplatným.

advojka.cz/a2-issue/202...

04.03.2026 13:01 👍 11 🔁 4 💬 1 📌 0
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The fallacy of placing confidence in confidence intervals - Psychonomic Bulletin & Review Interval estimates – estimates of parameters that include an allowance for sampling uncertainty – have long been touted as a key component of statistical analyses. There are several kinds of interval ...

A completely different and highly illuminating example is the submarine problem - I like the take on it by @richarddmorey.bsky.social in link.springer.com/article/10.3...

03.03.2026 11:57 👍 7 🔁 2 💬 2 📌 0
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Landscape ecological restoration. It can be done but we need to get a move on. This is Carrifran where the sheep were removed to allow this native woodland to take over.

04.03.2026 07:49 👍 563 🔁 170 💬 13 📌 21
04.03.2026 03:36 👍 699 🔁 199 💬 5 📌 6

They are literally running with “we have always been at war with Eurasia.” Unreal.

03.03.2026 13:35 👍 4867 🔁 1038 💬 152 📌 25

JUST ONE YEAR'S OF SOLAR!?

In 2025, 82MT of LNG went thru the Strait of Hormuz. That's 1200TWh of gas = about 600TWh of electricity generation if it was used in gas power plants.

Meanwhile in 2025, global solar electricity generation rose by about 600TWh ☀️

03.03.2026 15:46 👍 350 🔁 97 💬 13 📌 7

I tak by se to dalo říct. Hodně lidí by ideálně chtělo nekonečně parkovacích míst a jsou odhodláni bránit jakékoli redukci.

03.03.2026 16:02 👍 1 🔁 0 💬 1 📌 0

Problém je v tom, že kopačky z UEFA nevolí návštěvníci/ce těch stadionů...jinými slovy je těžké něco pochopit, pokud na nepochopení stojí moje kariéra.

03.03.2026 15:44 👍 1 🔁 0 💬 1 📌 0
Statistical Rethinking Lecture A09 - Modeling Events
Statistical Rethinking Lecture A09 - Modeling Events YouTube video by Richard McElreath

Lecture A09 - I get mildly ranty about the low quality of papers on discrimination and somehow also introduce generalized linear models for events and illustrate post-stratification. The theme continues next week with modeling sensitivity to unmeasured confounding. I will try to be less ranty.

03.03.2026 10:26 👍 50 🔁 9 💬 2 📌 0
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good morning everyone project your personal imposter syndrome onto this gif ur welcome

03.03.2026 08:08 👍 134 🔁 35 💬 5 📌 3

To vypadá zajímavě!

01.03.2026 15:32 👍 0 🔁 0 💬 1 📌 0
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Helsinki just went a full year without a single traffic death The capital city is Finnish’ed with car-related fatalities.

“Helsinki hasn’t registered a single traffic-related fatality in the past year…Citing data that shows the risk of pedestrian fatality is cut in half by reducing a car’s speed from 40 to 30km/hr, city officials imposed the lower limit in most of Helsinki’s residential areas and city center in 2021.”

01.03.2026 04:01 👍 2441 🔁 835 💬 38 📌 100
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"Assemble the Board of Peace - I'm starting a war".

28.02.2026 08:28 👍 14608 🔁 3310 💬 416 📌 124

Presne tak. Takže Varufakisův technofeudalismus.

27.02.2026 16:52 👍 2 🔁 0 💬 1 📌 0