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@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-08-07 09:52:14

Growth of few-layer molecular crystals of PTCDI on hexagonal boron nitride by microspacing air-gap sublimation
Nils LeCoutre, Tolibjon Abdurakhmonov, Paul Weinbrenner, Kenji Watanabe, Takashi Taniguchi, Tobias Korn, Franziska Fennel, Oliver K\"uhn, Friedemann Reinhard
arxiv.org/abs/2508.04591

Growth of few-layer molecular crystals of PTCDI on hexagonal boron nitride by microspacing air-gap sublimation
Extended two-dimensional (2D) crystals of dye molecules adsorbed on 2D material substrates like boron nitride have recently become a subject of intense study, with potential applications ranging from quantum technology to optoelectronics. The most established technique for the production of these films is physical vapor transport in vacuum. We demonstrate that few-layer crystalline films of the organic dye molecule PTCDI on boron nitride can be produced by microspacing in-air sublimation, a rad…

@DieGesellschafterinLang@swiss.social
2025-10-04 07:29:39

"Wieder wie wir’s hatten, ein leichter Scheitel, Ludwig?"
Mit 93 Jahren ist Hermann Schraufstetter immer noch als Friseur aktiv.
br.de/nachrichten/bayern/mit-s

Mit Schere, Kamm und Leidenschaft: Friseurmeister mit 93
Rente mit 67, mit 70 oder gar 80? Da lächelt ein Friseurmeister aus Straßkirchen nur ein wenig. Hermann Schraufstetter feiert noch in diesem Jahr seinen 94. Geburtstag. Trotzdem ist er jeden Tag im Laden und schneidet seinen Kunden die Haare.

@lysander07@sigmoid.social
2025-08-06 09:36:34

The #ISE2025 lecture is over. Today our students will write the final exam. FIngers crossed. Meanwhile - as our favorite coffee place is on vacation - Cappuccino and Zupfkuchen (highly recommended) together with the @… TA team at Intro Café :)

A dark brown cup of Cappuccino. The Cappuccino shows some Latté-Art in the form of a heart. Next, a piece of Zupfkuchen on a plate with a fork beside. In the upper left corner of the picture, we see the fragment of a Tunesian style ceramic ash tray (very colorful). On the table surface (mace of wood) there is the number 20 (as a helper for the service, when you are ordering your drink/cake inside)
@Mediagazer@mstdn.social
2025-09-29 12:30:41

An interview with Lester Holt about his first original podcast series The Last Appeal, as part of NBC News' Dateline, focusing on a Texas death sentence case (Brian Steinberg/Variety)
variety.com/2025/tv/news/leste

Lester Holt Finds New 'Appeal' in 'Dateline' Podcasts
Lester Holt's latest project for NBC News is a "Dateline" podcast that examines the death sentence case of a Texas man accused of shaking his daughter

@maxheadroom@hub.uckermark.social
2025-09-01 20:29:46

it's wild out here #Uckermark #project25

The image features a bird of prey in mid-flight against a clear blue sky. The bird, likely a raptor, is captured with its wings fully extended. It has a distinctive appearance, with a mix of brown and white feathers across its body and wings. Notably, the wings have a darkened edge, which adds contrast to the lighter underwing pattern. Its tail feathers are spread out, showing a reddish-brown hue and a slight forked shape, typical of certain bird species like a red kite. The composition places …
The image features a bird of prey soaring through a clear blue sky. The main subject is a hawk or eagle, characterized by broad wings and a long tail. The bird's plumage includes various shades of brown, with lighter underparts and darker wing tips. Its wings are spread wide, demonstrating the bird's impressive wingspan and aerodynamic form. The composition captures the bird in mid-flight, giving a sense of movement and gracefulness. The sky serves as a clean, uncluttered background, highlight…
@Techmeme@techhub.social
2025-07-24 06:01:35

London-based stock trading app Lightyear, which operates in 25 European countries, raised $23M led by NordicNinja, sources say at a $200M-$300M valuation (Ryan Browne/CNBC)
cnbc.com/2025/07/24/european-r

Estonia's tech elite are getting behind a European challenger to Robinhood
A host of Estonia's top tech entrepreneurs — including ride-hailing unicorn Bolt's CEO Markus Villig — are investing in European trading app Lightyear.

@blakes7bot@mas.torpidity.net
2025-10-02 15:15:12

Series B, Episode 11 - Gambit
AVON: - and I was assuring him that the whole idea is an absurd fantasy.
ORAC: On the contrary. It is neither absurd, nor is it a fantasy.
AVON: Are you suggesting that you know more about the subject than I do?
blake.torpidity.net/m/211/115 …

Claude 3.7 describes the image as: "The image shows a scene from a science fiction television series, featuring two people in a futuristic setting. On the right is someone wearing a distinctive silver/white outfit with a brown collar, who appears to be making a point with a raised finger during a conversation. The person on the left is dressed in a brown uniform with lighter trim. They appear to be having a discussion beside what looks like a clear console or control panel. The background featu…
@cdarwin@c.im
2025-08-24 15:56:24

Mathematician Karen Keskulla Uhlenbeck was born #OTD in 1942.
She is known for her work on PDEs, calculus of variations, topology, and gauge theory, and was the second woman (after Emmy Noether!) to give the plenary lecture to the International Congress of Mathematicians.

Robert McNees (@mcnees.bsky.social)
Mathematician Karen Keskulla Uhlenbeck was born #OTD in 1942. She is known for her work on PDEs, calculus of variations, topology, and gauge theory, and was the second woman (after Emmy Noether!) to give the plenary lecture to the International Congress of Mathematicians. 👩‍🔬 🧪

@arXiv_hepth_bot@mastoxiv.page
2025-08-29 09:57:31

TASI lectures on Matrix Theory from a modern viewpoint
Henry W. Lin
arxiv.org/abs/2508.20970 arxiv.org/pdf/2508.20970

TASI lectures on Matrix Theory from a modern viewpoint
These notes review the D0-brane or Banks-Fischler-Shenker-Susskind (BFSS) matrix quantum mechanics from a post-AdS/CFT perspective. We start from the decoupling argument for D0-branes and discuss the gravity dual in the 't Hooft regime, before extrapolating to strong coupling. In the second part of these notes, we review the matrix bootstrap method and its application to the D0-brane quantum mechanics.

@lindawoodrow@mastodon.social
2025-08-24 23:01:25

First roast of this year's coffee. I'll roast it a bit lighter next cup. #permaculture #retrosuburbia #fromthegarden

A small glass bowl full of chocolate brown, slightly glossy coffee beans.