Alexander Bartelt

X-odus: I love my science bubble, but it’s time to be prepared if shit will be going down here further 🙋‍♂️

I'm thrilled to share our recent work! Congratulations to @ParaishM and everyone involved @MCNostroLab @McEwenInstitute @UHN_Research @physiologyuoft @GPavlinkova

Die Polymerase-Kettenreaktion (PCR) ist eine revolutionäre molekularbiologische Methode zur schnellen Vervielfältigung kleinster DNA-Mengen. Sie ermöglicht den spezifischen Nachweis von Krankheitserregern (z.B. HIV, SARS-CoV-2), Gentests und forensische Analysen. Der Prozess umfasst Denaturierung, Primerhybridisierung und Elongation in wiederholten Zyklen. Der Ct-Wert in der PCR korreliert invers mit der Menge an nachweisbarer viraler RNA: je niedriger der Ct-Wert, desto mehr virales Material ist in der Probe vorhanden. Viel virales Material fällt nicht vom Himmel, sondern spricht dafür, dass sich das Virus zuvor in Körperzellen vermehrt hat. Genau diese Vermehrung in Wirtszellen ist eine Infektion. Und ohne Infektion gibt es keine Ansteckungsfähigkeit. Wichtig ist nur die saubere fachliche Einordnung: Die PCR weist virale RNA nach, nicht direkt lebende, vermehrungsfähige Viren. Deshalb bedeutet ein positiver PCR-Test allein nicht automatisch, dass jemand in genau diesem Moment infektiös ist, vor allem nicht bei hohen Ct-Werten. Aber: Eine echte Infektion kann selbstverständlich auch ohne Symptome ansteckend sein; asymptomatische und präsymptomatische Infizierte können Virus weitergeben. Die korrekte Kurzform lautet also: Niedriger Ct-Wert = viel virale RNA Viel virale RNA spricht für laufende oder kürzlich abgelaufene Virusvermehrung Virusvermehrung bedeutet Infektion und Infektion kann Ansteckungsfähigkeit bedeuten

Der Frühling der Mega-Reformen naht, Süßmäuse. Dann kommt der Sommer des Aufbruchs, der Herbst der Erneuerung und der Winter des Wandels. 🥹

1/ Excited to share our latest work in The EMBO Journal: link.springer.com/article/10.103… We define how Ubiquilin STI1 domains engage transmembrane clients and how this process is regulated.

Why do we rewatch TV shows? Either they are really funny or we find them comforting. Fair enough. Nothing better than a bit of Frasier or Seinfeld to escape reality! Source: statsignificant.com/p/the-rise-and…

🏔️ IST 2026 in the Canadian Rockies! 🏔️ The 2nd annual meeting of the International Society for Tractography is set for this fall. After Bordeaux, we’re bringing the community together again at the frontiers of #tractography, #dMRI & brain connectivity. 👇 Details

@SternDrewCrypto No link exists between vaccines, including combination vaccines, and autism according to WHO reviews and large-scale studies involving millions of children; the cited McCullough Foundation report is self-published and not peer-reviewed.

Chuck was an icon. I am grateful that I was able to work with him in multiple ways over the years, from promoting fitness to sharing the screen together. He was a badass, in real life and in Hollywood. His legend will be with us forever. My thoughts are with his family.

Deutsche Bank: Möglicher Steuerbetrug durch Cum-Cum-Geschäfte tagesschau.de/investigativ/w… #CumCum #DeutscheBank #Ermittlung

Slavery is as old as organized human society, older than written law and nearly as old as memory itself. In the river kingdoms of Mesopotamia, war captives were branded and worked until they died; in Egypt, prisoners hauled stone for monuments meant to defy time; in Greece and Rome, slavery was not a moral problem but a fact of nature. Aristotle could write calmly that some men were “slaves by nature,” living tools endowed with breath, while Roman law treated the enslaved as property no different from livestock. Herodotus noted enslaved peoples the way one notes climate or terrain. No civilization of antiquity imagined itself without bondage. The question was never whether slavery should exist, only who would bear it. The medieval and early modern worlds inherited this assumption intact. Serfdom tied peasants to land they did not own; Islamic empires operated vast slave systems stretching from Eastern Europe to Africa; African kingdoms enslaved rivals and sold captives abroad; Asian empires relied on slaves in households, courts, and armies. Slavery shifted forms—chattel here, debt bondage there—but not its moral status. It was regulated, restrained, sometimes softened, but rarely condemned. Even religion initially moved cautiously. Christianity urged mercy, encouraged manumission, warned masters against cruelty—but most didn’t advise overthrowing the institution outright. Slavery remained embedded in economics, law, and war, accepted as part of the human condition. Yet the seeds of its undoing were present in Christianity from the beginning, quietly subversive and slow to ripen. The Christian claim that every soul stood equal before God, that Christ died for slave and master alike, sat uneasily beside chains. Saint Paul could send a runaway slave back to his owner—and yet call that slave a “beloved brother.” The Church baptized slaves, buried them beside free men, and taught that no human being could own another’s soul. Medieval theologians wrestled with natural law, increasingly uneasy with slavery justified by conquest or race. These ideas did not abolish slavery, but they planted a moral tension that never went away. Christianity did not destroy slavery in a single blow; it corroded its legitimacy over centuries. By the early modern period, that tension became open argument. Western thinkers, drawing on Christian theology, classical philosophy, and emerging ideas of natural rights, began to ask a dangerous question: not how slavery should be regulated, but whether it could be justified at all. These debates were neither free nor safe. Economic interest fought theology, empire fought conscience, and habit fought imagination. Yet something unprecedented was happening. Slavery was no longer merely managed—it was being judged. And judged by standards that claimed universal moral authority. That judgment reached its most consequential expression in the British Empire. For all its conquest, coercion, and exploitation, Britain became the first global power to abolish the slave trade in 1807 and slavery itself in its empire in 1833. This was not symbolic. Parliament compensated slave owners, disrupted colonial economies, and accepted diplomatic and commercial loss. The abolitionist movement—driven by evangelical Christians, Quakers, moral philosophers, and relentless public petition—turned moral outrage into law. An empire built on trade declared one of its most lucrative trades morally illegitimate, not because it was inefficient, but because it was wrong. #archaeohistories

«If you wish to understand the universe, think of energy, frequency, and vibration» — Nikola Tesla

„Der nächste Akt eines Trauerspiels…“. DAK-Vorstandschef @StormAndreas kritisiert via @Dt_Aerzteblatt die mögliche weitere Verschiebung der geplanten #Notfallreform. aerzteblatt.de/news/notfallre…

Mexico was the only country to protest the annexation of Austria by Nazi Germany. To honor that support, there is a square in Vienna named "Mexikoplatz".

Ein Model erhebt Vorwürfe gegen Markus Söders Tochter. Sie sagt, Gloria habe Fotos von ihr mit KI bearbeitet und diese online als ihre eigenen ausgegeben. trib.al/xsEkXDT

Check out our new publication in @CellReports describing how aging affects sympathetic innervation of the thymus. Congratulations to the team, especially @RCarpenter_PhD for an outstanding work!! @EinsteinCellBio @EinsteinMed cell.com/cell-reports/f…

@DrChristinaBaum zeigt, welchem Geschwurbel die @AfD unter der Fachaufsicht von @SHomburg , dem Direktor des #Homburg Instituts für manipulative Statistik, eine Bühne bietet.

Thrilled to receive the EAS Young Investigator Award 2026 for our work on imidazole propionate in atherosclerosis. Huge thanks to @SanchoLab, @Teriyaky_852, and all collaborators. Inspired to keep advancing research on #gut #microbiota‑derived #metabolites & #Aterosclerosis!

Building on our Cell Met 2019 study, we show why some DLBCL patients relapse after L-asparaginase: metabolic rewiring drives DNA damage and PARP1/2 dependence. Targeting this with olaparib exploits resistance and enhances killing. Kudos to @ChicheJohanna nature.com/articles/s4146…

Assassinating heads of state has been taboo since at least the Treaty of Westphalia. There are a number of very practical reasons it's a very bad idea. For one, it makes it near impossible for states to negotiate. It also galvanizes public opinion (in places such as Iran) behind the regime. It's seen as an attack on the whole people.

The astronomical start of spring is here 🌸🌼 📷 Instagram | ObservingOxford, UmairAtOxford, @magdalenoxford & Judy.Martin46 #SpringEquinox