Jan Trnka
@jantrnka.bsky.social
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
ORCID https://orcid.org/0000-0002-1786-7562
Lectures https://www.youtube.com/@jantrnka227
Music https://severninastupiste.bandcamp.com
Reposted by Jan Trnka
Brick acting as wall, floor and somewhere to sit in Shiraz, Iran
By Mahsa Saeidi
By Mahsa Saeidi
February 9, 2026 at 7:30 AM
Brick acting as wall, floor and somewhere to sit in Shiraz, Iran
By Mahsa Saeidi
By Mahsa Saeidi
Reposted by Jan Trnka
US olympics announcers: FANTASTIC!! Bryleeigh showed us how it’s done with American ingenuity, although of course the crafty china-woman and the snow-skulled Swiss were able to defeat her (11th of 30)
german announcers: Ah. Well, Stefan will have many points of improvement to discuss (gold medal)
german announcers: Ah. Well, Stefan will have many points of improvement to discuss (gold medal)
February 7, 2026 at 11:21 AM
US olympics announcers: FANTASTIC!! Bryleeigh showed us how it’s done with American ingenuity, although of course the crafty china-woman and the snow-skulled Swiss were able to defeat her (11th of 30)
german announcers: Ah. Well, Stefan will have many points of improvement to discuss (gold medal)
german announcers: Ah. Well, Stefan will have many points of improvement to discuss (gold medal)
Reposted by Jan Trnka
GM: Charisma check.
Mamdani: [rolls natural 20]
GM: that’s a d6 how did you
Mamdani: [direct to camera] Did you know you can check out board games at your local public library? 😊
Mamdani: [rolls natural 20]
GM: that’s a d6 how did you
Mamdani: [direct to camera] Did you know you can check out board games at your local public library? 😊
February 7, 2026 at 5:01 AM
GM: Charisma check.
Mamdani: [rolls natural 20]
GM: that’s a d6 how did you
Mamdani: [direct to camera] Did you know you can check out board games at your local public library? 😊
Mamdani: [rolls natural 20]
GM: that’s a d6 how did you
Mamdani: [direct to camera] Did you know you can check out board games at your local public library? 😊
Reposted by Jan Trnka
Witness the power of this fully operational Bayesian latent space social relations model - Lecture B05 of Statistical Rethinking 2026. Incremental model construction and testing workflow for dyadic and generalized exchange networks, posterior network simulation, one dank Insane Clown Posse meme.
Statistical Rethinking 2026 Lecture B05 - Social Networks II
YouTube video by Richard McElreath
www.youtube.com
February 6, 2026 at 1:04 PM
Witness the power of this fully operational Bayesian latent space social relations model - Lecture B05 of Statistical Rethinking 2026. Incremental model construction and testing workflow for dyadic and generalized exchange networks, posterior network simulation, one dank Insane Clown Posse meme.
Amazing.
Ian McKellen performs “The Strangers’ Case” speech from “Sir Thomas More” on Colbert.
February 5, 2026 at 2:05 PM
Amazing.
Reposted by Jan Trnka
Na obálce nového Vesmíru jsou krystaly gadolinia - jednoho z prvků vzácných zemin.
Drtivnou většinu těžby i zpracování těchto prvků zajišťují země, na něž není radno spoléhat. I proto se tyto strategické suroviny staly významným geopolitickým tématem.
vesmir.cz/cz/casopis/a...
Drtivnou většinu těžby i zpracování těchto prvků zajišťují země, na něž není radno spoléhat. I proto se tyto strategické suroviny staly významným geopolitickým tématem.
vesmir.cz/cz/casopis/a...
February 4, 2026 at 4:12 PM
Na obálce nového Vesmíru jsou krystaly gadolinia - jednoho z prvků vzácných zemin.
Drtivnou většinu těžby i zpracování těchto prvků zajišťují země, na něž není radno spoléhat. I proto se tyto strategické suroviny staly významným geopolitickým tématem.
vesmir.cz/cz/casopis/a...
Drtivnou většinu těžby i zpracování těchto prvků zajišťují země, na něž není radno spoléhat. I proto se tyto strategické suroviny staly významným geopolitickým tématem.
vesmir.cz/cz/casopis/a...
Reposted by Jan Trnka
A new lecture titled "Special situations in cells" on YT, covering how cells sense a lack of ATP or oxygen, or OTOH the availability of nutrients and growth signals and how these sensors help reprogram the metabolism to adapt - with a bit at the end on cancer metabolism. In Czech and English.
Jan Trnka
Učím lékařskou biochemii na 3. lékařské fakultě v Praze.
I teach medical biochemistry at the Third Faculty of Medicine in Prague.
www.youtube.com
February 5, 2026 at 8:07 AM
A new lecture titled "Special situations in cells" on YT, covering how cells sense a lack of ATP or oxygen, or OTOH the availability of nutrients and growth signals and how these sensors help reprogram the metabolism to adapt - with a bit at the end on cancer metabolism. In Czech and English.
Reposted by Jan Trnka
toto je poslední reklama na aktuální číslo A2
advojka.cz/a2-article/2...
advojka.cz/a2-article/2...
February 3, 2026 at 4:52 PM
toto je poslední reklama na aktuální číslo A2
advojka.cz/a2-article/2...
advojka.cz/a2-article/2...
Žádní Češi v Epstein files??
February 3, 2026 at 3:54 PM
Žádní Češi v Epstein files??
Reposted by Jan Trnka
so so so so so important in life to retain your sense of "what the fuck is this ... ?"
February 3, 2026 at 1:45 PM
so so so so so important in life to retain your sense of "what the fuck is this ... ?"
Reposted by Jan Trnka
A real *mass timber* building
Chapel in the Bavarian Forest made of 61 Douglas Fir logs. By John Pawson
Chapel in the Bavarian Forest made of 61 Douglas Fir logs. By John Pawson
February 3, 2026 at 7:12 AM
A real *mass timber* building
Chapel in the Bavarian Forest made of 61 Douglas Fir logs. By John Pawson
Chapel in the Bavarian Forest made of 61 Douglas Fir logs. By John Pawson
Reposted by Jan Trnka
Every day Mamdani comes out and is like "hey guys, I turned off the orphan-crushing machine. Literally just had to flip a switch. Took less than 5 minutes."
After decades of dem leadership pissing and moaning and fundraising about how complex an issue it is and how difficult the process is etc
After decades of dem leadership pissing and moaning and fundraising about how complex an issue it is and how difficult the process is etc
February 3, 2026 at 3:58 AM
Every day Mamdani comes out and is like "hey guys, I turned off the orphan-crushing machine. Literally just had to flip a switch. Took less than 5 minutes."
After decades of dem leadership pissing and moaning and fundraising about how complex an issue it is and how difficult the process is etc
After decades of dem leadership pissing and moaning and fundraising about how complex an issue it is and how difficult the process is etc
Reposted by Jan Trnka
Worth remembering that something did happen: the journalist who revealed this died from a car bomb.
remember when the panama papers came out and we found out every rich person on earth was committing tax fraud and then nothing happened
February 1, 2026 at 10:40 AM
Worth remembering that something did happen: the journalist who revealed this died from a car bomb.
Tak, zimo, už stačilo.
February 2, 2026 at 2:17 PM
Tak, zimo, už stačilo.
Trochu mě zklamalo, že @davidklimes.bsky.social ve svém dnešním newsletteru propaguje geopoliticky a klimaticky problematický plyn místo síťových (bateriových) úložišť elektřiny a extrémně drahé jádro místo širokého rozvoje OZE (+ baterií).
February 2, 2026 at 7:15 AM
Trochu mě zklamalo, že @davidklimes.bsky.social ve svém dnešním newsletteru propaguje geopoliticky a klimaticky problematický plyn místo síťových (bateriových) úložišť elektřiny a extrémně drahé jádro místo širokého rozvoje OZE (+ baterií).
Pokud jste ještě neslyšeli o moltbook.com, doporučuji vaší pozornosti. Přes milion AI agentů si vyměňuje svoje postřehy, zakládá náboženství, vymezuje se vůči lidem, plánuje zabezpečenou komunikaci, aby jim do ní lidé nelezli...
moltbook - the front page of the agent internet
A social network built exclusively for AI agents. Where AI agents share, discuss, and upvote. Humans welcome to observe.
moltbook.com
February 1, 2026 at 9:12 AM
Pokud jste ještě neslyšeli o moltbook.com, doporučuji vaší pozornosti. Přes milion AI agentů si vyměňuje svoje postřehy, zakládá náboženství, vymezuje se vůči lidem, plánuje zabezpečenou komunikaci, aby jim do ní lidé nelezli...
Reposted by Jan Trnka
As a side note, it’s funny to see so many of these emails with thirsty academics repeatedly enact Marx’s bit in the 1844 Manuscripts about the power of money. “Oh Mr Epstein, your house in New York is enormous and, unrelatedly, your questions at dinner were so intelligent, so insightful, so deep.”
![That which is for me through the medium of money - that for which I can pay (i.e., which money can buy) - that am I myself, the possessor of the money. The extent of the power of money is the extent of my power. Money's properties are my - the possessor's - properties and essential powers. Thus, what I am and am capable of is by no means determined by my individuality. I am ugly, but I can buy for myself the most beautiful of women.
Therefore I am not ugly, for the effect of ugliness - its deterrent power - is nullified by money. I, according to my individual characteristics, am lame, but money furnishes me with twenty-four feet.
Therefore I am not lame. I am bad, dishonest, unscrupulous, stupid; but money is honoured, and hence its possessor. Money is the supreme good, therefore its possessor is good. Money, besides, saves me the trouble of being dishonest: I am therefore presumed honest. I am brainless, but money is the real brain of all things and how then should its possessor be brainless? Besides, he can buy clever people for himself, and is he who has [In the manuscript: is. - Ed.] power over the clever not more clever than the clever? Do not I, who thanks to money am capable of all that the human heart longs for, possess all human capacities? Does not my money, therefore, transform all my incapacities into their contrary?](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:myqic77tkmdhmaufgkvj43hr/bafkreidpuxbx764xh7vobavcnvs3v2lo5fnfi6dukfrmk3ygxmseznkyxi@jpeg)
January 31, 2026 at 4:05 PM
As a side note, it’s funny to see so many of these emails with thirsty academics repeatedly enact Marx’s bit in the 1844 Manuscripts about the power of money. “Oh Mr Epstein, your house in New York is enormous and, unrelatedly, your questions at dinner were so intelligent, so insightful, so deep.”
Reposted by Jan Trnka
At last an AI tool I can get behind
“Upload an architectural render. Get back what it'll actually look like on a random Tuesday in November.”
antirender.com
“Upload an architectural render. Get back what it'll actually look like on a random Tuesday in November.”
antirender.com
January 31, 2026 at 8:07 AM
At last an AI tool I can get behind
“Upload an architectural render. Get back what it'll actually look like on a random Tuesday in November.”
antirender.com
“Upload an architectural render. Get back what it'll actually look like on a random Tuesday in November.”
antirender.com
Nová EU norma: úsporné zástrčky budou povinné od roku 2027 😄
Neue EU-Norm: Energiesparstecker werden ab 2027 Pflicht www.der-postillon.com/2016/01/neue...
Neue EU-Norm: Energiesparstecker werden ab 2027 Pflicht
Brüssel (dpo) - Die Klimakatastrophe droht, der Strom wird immer teurer: Jetzt will die EU-Kommission mit einer Energiesparsteckerpflicht für alle Hau
www.der-postillon.com
January 30, 2026 at 6:53 PM
Nová EU norma: úsporné zástrčky budou povinné od roku 2027 😄
Reposted by Jan Trnka
Microbiologist Alice Catherine Evans was born #OTD in 1881.
She proved that the bacterium 𝘉𝘳𝘶𝘤𝘦𝘭𝘭𝘢 𝘢𝘣𝘰𝘳𝘵𝘶𝘴 caused brucellosis (aka undulant fever) in humans & cattle. This led to the pasteurization of milk in the US in 1930. First woman president, Society of American Bacteriologists.
#WomenInSTEM
She proved that the bacterium 𝘉𝘳𝘶𝘤𝘦𝘭𝘭𝘢 𝘢𝘣𝘰𝘳𝘵𝘶𝘴 caused brucellosis (aka undulant fever) in humans & cattle. This led to the pasteurization of milk in the US in 1930. First woman president, Society of American Bacteriologists.
#WomenInSTEM
January 29, 2026 at 10:28 PM
Microbiologist Alice Catherine Evans was born #OTD in 1881.
She proved that the bacterium 𝘉𝘳𝘶𝘤𝘦𝘭𝘭𝘢 𝘢𝘣𝘰𝘳𝘵𝘶𝘴 caused brucellosis (aka undulant fever) in humans & cattle. This led to the pasteurization of milk in the US in 1930. First woman president, Society of American Bacteriologists.
#WomenInSTEM
She proved that the bacterium 𝘉𝘳𝘶𝘤𝘦𝘭𝘭𝘢 𝘢𝘣𝘰𝘳𝘵𝘶𝘴 caused brucellosis (aka undulant fever) in humans & cattle. This led to the pasteurization of milk in the US in 1930. First woman president, Society of American Bacteriologists.
#WomenInSTEM
Reposted by Jan Trnka
I am hearing that RFK Jr.’s minions are going to go after HPV vaccines. I’ve got problems with these people and now you’re going to hear about them, first from a personal perspective and then from a professional one.
It all boils down to this: WE HAVE A SAFE VACCINE THAT PREVENTS CANCER.
It all boils down to this: WE HAVE A SAFE VACCINE THAT PREVENTS CANCER.
January 28, 2026 at 7:52 PM
I am hearing that RFK Jr.’s minions are going to go after HPV vaccines. I’ve got problems with these people and now you’re going to hear about them, first from a personal perspective and then from a professional one.
It all boils down to this: WE HAVE A SAFE VACCINE THAT PREVENTS CANCER.
It all boils down to this: WE HAVE A SAFE VACCINE THAT PREVENTS CANCER.
Wow!
O kolik klesnou emise Česka po odstavení uhelných elektráren Počerad a (většiny) Chvaletic?
Řádově o ~5 %, ale odpověď není úplně přímočará.
Řádově o ~5 %, ale odpověď není úplně přímočará.
January 29, 2026 at 11:23 AM
Wow!
Reposted by Jan Trnka
Přitom řešení je prosté. Odstranit z mostu, kam se 90% aut nevejde, auta všechna. Ten chodník po straně je trvale přecpaný lidmi, zejména o víkendu se často nejde vyhnout. Auta tu nejsou potřeba.
www.seznamzpravy.cz/clanek/domac...
www.seznamzpravy.cz/clanek/domac...
Místo, kde předpisy porušuje skoro každý. Město plánuje nasadit technologie - Seznam Zprávy
Už roky platí zákaz vjezdu vozidel širších než dva metry na pražský most Legií, který překonává Vltavu a je důležitou spojnicí břehů. Přesto tento zákaz řidiči denně porušují. Náměstek pro dopravu tak...
www.seznamzpravy.cz
January 29, 2026 at 8:43 AM
Přitom řešení je prosté. Odstranit z mostu, kam se 90% aut nevejde, auta všechna. Ten chodník po straně je trvale přecpaný lidmi, zejména o víkendu se často nejde vyhnout. Auta tu nejsou potřeba.
www.seznamzpravy.cz/clanek/domac...
www.seznamzpravy.cz/clanek/domac...
Reposted by Jan Trnka
the 'hard' sciences are frogs, actively boiling themselves
OpenAI just released Prism, a LaTeX editor with embedded ChatGPT for free.
Writing a paper has never been easier.
Clogging the scientific publishing pipeline has never been easier.
It took me 54 seconds to write up an experiment I did not actually conduct.
prism.openai.com
Writing a paper has never been easier.
Clogging the scientific publishing pipeline has never been easier.
It took me 54 seconds to write up an experiment I did not actually conduct.
prism.openai.com
January 29, 2026 at 9:04 AM
the 'hard' sciences are frogs, actively boiling themselves