Tootfinder

Opt-in global Mastodon full text search. Join the index!

No exact results. Similar results found.
@arXiv_physicsoptics_bot@mastoxiv.page
2025-06-27 08:43:49

All-Dielectric Metasurface with a Two-Dimensional Locally Flat Photonic Band
Minho Choi, Christopher Munley, Arnab Manna, Johannes Fr\"och, Arthur Barnard, Arka Majumdar
arxiv.org/abs/2506.20871

All-Dielectric Metasurface with a Two-Dimensional Locally Flat Photonic Band
Photonic flatbands offer promising light-matter interaction due to their unique slow-light nature. In recent years, flatbands have also attracted significant interest in optical engineering because of their angle-insensitive resonant characteristics. However, most photonic flatbands demonstrated to date occur only in one dimension and for a specific polarization, limiting their applicability. To date, no studies have reported the dispersionless behavior of flatbands under arbitrary two-dimensio…

@arXiv_condmatmeshall_bot@mastoxiv.page
2025-07-24 08:05:59

Unveiling the Miniband Structure of Graphene Moir\'e Superlattices via Gate-dependent Terahertz Photocurrent Spectroscopy
Juan A. Delgado-Notario, Stephen R. Power, Wojciech Knap, Manuel Pino, JinLuo Cheng, Daniel Vaquero, Takashi Taniguchi, Kenji Watanabe, Jes\'us E. Vel\'azquez-P\'erez, Yahya M. Meziani, Pablo Alonso-Gonz\'alez, Jos\'e M. Caridad

Unveiling the Miniband Structure of Graphene Moiré Superlattices via Gate-dependent Terahertz Photocurrent Spectroscopy
Moiré superlattices formed at the interface between stacked two-dimensional atomic crystals offer limitless opportunities to design materials with widely tunable properties and engineer intriguing quantum phases of matter. However, despite progress, precise probing of the electronic states and tantalizingly complex band textures of these systems remain challenging. Here, we present gate-dependent terahertz photocurrent spectroscopy as a robust technique to detect, explore and quantify intricat…

@arXiv_mathAP_bot@mastoxiv.page
2025-07-18 09:12:32

Robin Green Function Estimates and a Model of Mammalian Lungs
Guy David, Stefano Decio, Max Engelstein, Marcel Filoche, Svitlana Mayboroda, Marco Michetti
arxiv.org/abs/2507.13168

Robin Green Function Estimates and a Model of Mammalian Lungs
The present paper establishes delicate properties of the Green function with Robin boundary conditions, in particular, elucidating the nature of the passage between the Dirichlet-like and Neumann-like behavior. This yields sharp quantifiable bounds on the corresponding harmonic measure and proves the phase transition in the behavior of the total flow earlier conjectured in physics literature in concert with the efficacy of mammalian lungs.

@hikingdude@mastodon.social
2025-07-06 11:51:24

Just wrote a quick blog post about our visit of the #zoo in #Nürnberg where I could capture some ground #squirrels that I found pretty cute.
I hope you like the photos as well.
The blog …

A charming ground squirrel stands upright in a lush field of tall green grass and wild plants, holding a blade of grass in its tiny paws as if mid-snack. Its curious posture and serene surroundings capture a peaceful moment of wildlife in harmony with nature. The soft, blurred background adds a dreamy touch to this delightful scene.
@marcwhoward@neuromatch.social
2025-06-07 19:16:18

Delighted to see these two new papers come out in Nature (they've been on bioRxiv for a while).
How does Pavlov's dog learn that the bell predicts the food? One answer is that the bell appears ``close'' in time to the food and that enables learning. We're certain that dopamine has something to do with learning these kinds of associations. But the definition of ``close'' in time is actually really difficult to pin down. You can get associations over prett…

Multi-timescale reinforcement learning in the brain - Nature
Individual dopaminergic neurons encode future rewards over distinct temporal horizons.

@leftsidestory@mstdn.social
2025-07-04 00:30:00

Urban Snaps 📸
城市抓拍 📸
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Fujifilm Neopan 100 SS (FF) 🇬🇧 English Alt Text A black and white photograph of a street scene with a large building in the background. The left side is overexposed, creating a bright white strip. Two pedestrians walk on the sidewalk partially hidden by bushes. A tree on the right stretches its branches across the top of the image, adding depth and framing. 🇨🇳 中文替代文字 一张黑白街景照片，背景是一栋建筑。图像左侧因曝光过度而呈现一条明亮的白色条纹。两位行人走在人行道上，部分被灌木遮挡。右侧一棵树的枝条延伸至图像顶部，增添了层次感和构图美感。
Fujifilm Neopan 100 SS (FF) 🇬🇧 English Alt Text A black and white photo depicting a quiet street scene. A person sits alone inside a bus stop shelter on the left, partially obscured by blurriness. To the right, a car moves along a road bordered by trees. The background features buildings softened by distance, evoking a calm, introspective atmosphere. 🇨🇳 中文替代文字 一张黑白街景照片，左侧是一个公交站亭，一人独坐于长椅上，图像部分模糊。右侧道路上有一辆汽车驶过，沿途树木林立。远景中的建筑模糊朦胧，整个画面呈现出一种宁静、沉思的氛围。
Fujifilm Neopan 100 SS (FF) 🇬🇧 English Alt Text A black and white close-up photograph of a concrete structure with a rectangular opening. Through the opening, delicate plant stems reach upward, their thin leaves contrasting against the hard, industrial texture of the concrete. In the distance, blurred buildings suggest an urban setting. The juxtaposition of nature breaking through manmade architecture evokes resilience and quiet beauty. 🇨🇳 中文替代文字 一张黑白特写照片，展示了一个混凝土结构带有矩形开口。开口中，一株纤细的植物向上生长，枝叶…
Fujifilm Neopan 100 SS (FF) 🇬🇧 English Alt Text A black and white photograph viewed from a low angle through a rectangular gap in a concrete structure. Beyond the opening lies a paved surface with multiple concrete supports extending into the background. A small plant with broad leaves emerges on the left, adding a touch of nature to the urban geometry. In the distance, a rectangular object rests on the ground, possibly a box or piece of debris. The composition highlights tension between the …

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

@leftsidestory@mstdn.social
2025-05-31 00:30:03

Natura Urbana VI 🏡
城市自然 VI 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Ilford FP4 @ ISO 80 **English:** A black and white photograph depicting a tranquil scene in a park. Several ducks are resting on the grass near a body of water. The ducks are scattered around, some closer to the water's edge while others are further away. The water body is partially visible, and the overall scene is calm and serene, with the ducks appearing relaxed in their natural habitat. **Chinese:** 一张黑白照片，描绘了公园里宁静的场景。几只鸭子在水边的草地上休息。这些鸭子分散各处，有些靠近水边，有些则离得较远。水体部分可见，整个场景平静而宁和，鸭子们在自然栖息地中显得非常放松。
Ilford FP4 @ ISO 80 **English:** A black and white photograph capturing a scenic view of a park with a small bridge over a pond. The pond is surrounded by lush vegetation and trees, creating a peaceful atmosphere. In the background, tall buildings rise above the treeline, contrasting with the natural setting of the park. The bridge adds a charming element to the scene, inviting viewers to imagine crossing it and exploring the park further. **Chinese:** 一张黑白照片，捕捉到公园中带有小桥的池塘的美景。池塘周围环绕着茂密的植被和树木，…
Ilford FP4 @ ISO 80 **English:** A black and white photograph showing a solitary black swan standing on a narrow strip of land beside a pond. The swan is poised gracefully, with its neck arched elegantly. The pond is surrounded by reeds and other vegetation, creating a picturesque and serene setting. The background includes more greenery and trees, adding to the natural beauty of the scene. **Chinese:** 一张黑白照片，展示了一只孤独的黑天鹅站在池塘边的一条狭长陆地上。天鹅姿态优雅，脖颈弯曲得非常优美。池塘周围环绕着芦苇和其他植被，构成了一幅如画般宁静的场景。背景中还有更多的绿色植物…
Ilford FP4 @ ISO 80 **English:** A black and white close-up photograph of a cluster of small flowers. The flowers are delicate and appear to be in full bloom, with intricate details visible in their petals. The background is blurred, drawing focus to the flowers in the foreground. The play of light and shadow adds depth to the image, highlighting the natural beauty and intricacy of the flowers. **Chinese:** 一张黑白特写照片，展示了一簇小花。这些花朵娇小精致，看起来盛开得非常美丽，花瓣的细节清晰可见。背景模糊，使前景的花朵成为焦点。光影的交错为图像增添了深度，突显了花朵的自然美…

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

@leftsidestory@mstdn.social
2025-05-31 00:30:03

Natura Urbana VI 🏡
城市自然 VI 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Ilford FP4 @ ISO 80 **English:** A black and white photograph depicting a tranquil scene in a park. Several ducks are resting on the grass near a body of water. The ducks are scattered around, some closer to the water's edge while others are further away. The water body is partially visible, and the overall scene is calm and serene, with the ducks appearing relaxed in their natural habitat. **Chinese:** 一张黑白照片，描绘了公园里宁静的场景。几只鸭子在水边的草地上休息。这些鸭子分散各处，有些靠近水边，有些则离得较远。水体部分可见，整个场景平静而宁和，鸭子们在自然栖息地中显得非常放松。
Ilford FP4 @ ISO 80 **English:** A black and white photograph capturing a scenic view of a park with a small bridge over a pond. The pond is surrounded by lush vegetation and trees, creating a peaceful atmosphere. In the background, tall buildings rise above the treeline, contrasting with the natural setting of the park. The bridge adds a charming element to the scene, inviting viewers to imagine crossing it and exploring the park further. **Chinese:** 一张黑白照片，捕捉到公园中带有小桥的池塘的美景。池塘周围环绕着茂密的植被和树木，…
Ilford FP4 @ ISO 80 **English:** A black and white photograph showing a solitary black swan standing on a narrow strip of land beside a pond. The swan is poised gracefully, with its neck arched elegantly. The pond is surrounded by reeds and other vegetation, creating a picturesque and serene setting. The background includes more greenery and trees, adding to the natural beauty of the scene. **Chinese:** 一张黑白照片，展示了一只孤独的黑天鹅站在池塘边的一条狭长陆地上。天鹅姿态优雅，脖颈弯曲得非常优美。池塘周围环绕着芦苇和其他植被，构成了一幅如画般宁静的场景。背景中还有更多的绿色植物…
Ilford FP4 @ ISO 80 **English:** A black and white close-up photograph of a cluster of small flowers. The flowers are delicate and appear to be in full bloom, with intricate details visible in their petals. The background is blurred, drawing focus to the flowers in the foreground. The play of light and shadow adds depth to the image, highlighting the natural beauty and intricacy of the flowers. **Chinese:** 一张黑白特写照片，展示了一簇小花。这些花朵娇小精致，看起来盛开得非常美丽，花瓣的细节清晰可见。背景模糊，使前景的花朵成为焦点。光影的交错为图像增添了深度，突显了花朵的自然美…

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

@BBC3MusicBot@mastodonapp.uk
2025-06-20 20:13:25

🇺🇦 #NowPlaying on BBCRadio3's #FridayNightIsMusicNight
Max Richter, BBC Concert Orchestra & Anna-Maria Helsing:
🎵 On the Nature of Daylight
#MaxRichter #BBCConcertOrchestra #AnnaMariaHelsing #newRelease 🆕 single