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@arXiv_csAI_bot@mastoxiv.page
2025-09-18 09:49:11

Exploring Major Transitions in the Evolution of Biological Cognition With Artificial Neural Networks
Konstantinos Voudouris, Andrew Barron, Marta Halina, Colin Klein, Matishalin Patel
arxiv.org/abs/2509.13968

Exploring Major Transitions in the Evolution of Biological Cognition With Artificial Neural Networks
Transitional accounts of evolution emphasise a few changes that shape what is evolvable, with dramatic consequences for derived lineages. More recently it has been proposed that cognition might also have evolved via a series of major transitions that manipulate the structure of biological neural networks, fundamentally changing the flow of information. We used idealised models of information flow, artificial neural networks (ANNs), to evaluate whether changes in information flow in a network ca…

@leftsidestory@mstdn.social
2025-09-18 00:30:01

On The Road - To Xi’An/ Mordern Relics
在路上 - 去西安/ 现代遗风
📷 Pentax MX
🎞️Fujifilm Neopan F, expired 1993
#filmphotography #Photography #blackandwhite

FUJIFILM NEOPAN F (FF) English Alt Text: A traditional East Asian-style building with a tiered, pagoda-like roof stands beside a calm body of water. The structure has slanted walls and overhanging eaves. In front, rocks and shrubs are arranged in a landscaped area. The water reflects the building, creating a symmetrical and serene composition. The architecture suggests Japanese or Chinese influence. 中文替代文字： 一座具有东亚风格的传统建筑坐落在宁静的水边，屋顶呈多层塔状，檐角上翘。建筑前方是布置有岩石和灌木的园林区域。水面清澈，倒映出建筑的轮廓，形成对称而宁静的画面。建筑风格可能受…
FUJIFILM NEOPAN F (FF) English Alt Text: A large building with East Asian architectural features, including a multi-tiered roof with upturned eaves, stands elevated behind a wide stone bridge. The bridge has decorative railings and lamp posts. A few people walk toward the entrance. The facade combines traditional stone carvings with modern glass panels. The image is in black and white, giving it a timeless, documentary feel. 中文替代文字： 一座大型建筑融合了东亚建筑元素，屋顶多层且檐角上翘。建筑高于地面，通过一座宽阔的石桥连接，桥上有装饰性栏杆和灯柱。几人正…
FUJIFILM NEOPAN F (FF) English Alt Text: A close-up of a stone or ceramic sculpture depicting a stylized human face. The figure wears a headpiece and a garment that wraps around the neck. The lighting is dramatic, casting shadows that emphasize the contours of the face and upper torso. The background is dark with soft circular light spots, creating a bokeh effect. The craftsmanship highlights cultural or historical significance, with attention to facial expression and texture. 中文替代文字： 这是一张石雕或…
FUJIFILM NEOPAN F (FF) English Alt Text: Two bird sculptures are placed on a bed of white pebbles outdoors. One resembles a swan with its neck curved downward, and the other resembles a crane with a long neck and pointed beak. The area is landscaped with grass and adjacent to a modern building with glass windows and metal framework. A person is visible inside the building, adding scale and context. 中文替代文字： 户外场景中，两只鸟类雕塑安置在白色鹅卵石上。一只像天鹅，脖子向下弯曲；另一只像鹤，长颈和尖嘴朝地面。周围有草地，旁边是一座现代建筑，带有玻璃窗和金属结构。建筑内可见一人，增强…
@cosmos4u@scicomm.xyz
2025-07-07 23:21:09

Rising surface salinity and declining sea ice - a new Southern Ocean state revealed by satellites: #salinity across the circumpolar Southern Ocean since 2015. This shift has weakened upper-ocean stratification, coinciding with a dramatic decline in Antarctic sea ice coverage. Additionally, rising salinity facilitated the reemergence of the Maud Rise polynya in the Weddell Sea, a phenomenon last observed in the mid-1970s. Crucially, we demonstrate that satellites can now monitor these changes in real time, providing essential evidence of the Southern Ocean’s potential transition toward persistently reduced sea ice coverage" -> A change in the Southern Ocean structure can have climate implications: icm.csic.es/en/news/change-sou (the original version of this press release was full of errors as bsky.app/profile/mkreutzfeldt. has documented but - as bsky.app/profile/micefearboggi points out - the correction was done in a most intransparent way).

@arXiv_astrophEP_bot@mastoxiv.page
2025-08-07 09:45:14

Time-dependent response of protoplanetary disk temperature to an FU Ori-type luminosity outburst
S. I. Laznevoi, V. V. Akimkin, Ya. N. Pavlyuchenkov, V. B. Il'in, \'A. K\'osp\'al, P. \'Abrah\'am
arxiv.org/abs/2508.04686

Time-dependent response of protoplanetary disk temperature to an FU Ori-type luminosity outburst
Context. The most prominent cases of young star variability are accretion outbursts in FU Ori-type systems. The high power of such outbursts causes dramatic changes in the physical and chemical structure of a surrounding protoplanetary disk. As characteristic thermal timescales in the disk are comparable to the duration of the outburst, the response of its thermal structure is inherently time dependent. Aims. We analyzed how the disk thermal structure evolves under the substantial-yet transie…

@leftsidestory@mstdn.social
2025-09-08 00:30:00

On The Road - To Xi’An ☁️
在路上 - 去西安 ☁️
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo of a narrow urban alley featuring a closed corrugated metal roll-up door. Above the door is a chaotic cluster of tangled electrical wires and components, mounted on brackets and poles. The surrounding walls are tiled and concrete, and a small step leads up to the door. The image highlights urban infrastructure challenges and the complexity of city planning. 中文替代文字： 这是一张黑白照片，描绘了城市狭窄巷道中的一个关闭的波纹金属卷门。门上方密布着杂乱的电线和电器元件，安装在支架和杆上。周围墙面…
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white urban street scene featuring a large brick archway structure, possibly a bridge or viaduct, with multiple arches. A person rides a scooter toward the camera on a curving road. On the left, pedestrians walk along a sidewalk lined with bollards and foliage. The moody lighting and nostalgic tone evoke a sense of quiet city life. 中文替代文字： 这是一张黑白街景照片，右侧是一座大型砖砌拱门结构，可能是桥梁或高架桥，有多个拱洞。一人骑着踏板车沿弯曲道路向镜头驶来。左侧人行道上有行人，路边设有防撞柱并被绿植遮掩。画面光线昏暗，氛围怀旧，展现了城市…
Lucky Lucky SHD 400 (FF) English Alt Text: A dramatic black-and-white image taken from a low angle, showing a tall modern building partially hidden behind thick tree foliage. The building has large windows and multiple floors. The tree branches and leaves create a canopy that filters light and casts shadows, producing a high-contrast, moody composition. The interplay between nature and architecture gives the scene a layered, contemplative feel. 中文替代文字： 这是一张黑白照片，从低角度拍摄，一座现代高楼部分被茂密树叶遮挡。建筑有多层和大窗…
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo of a pedestrian bridge leading to a historic stone structure with multiple archways and battlements. The bridge has railings on both sides and a few people walking across. Parked cars and a streetlamp line the right side of the scene. Trees surround the stone structure, and the sky is overcast, adding a moody atmosphere. The contrast between the ancient architecture and modern elements like vehicles and lighting evokes a sense …
@leftsidestory@mstdn.social
2025-09-09 00:30:02

On The Road - To Xi’An 🌫️
在路上 - 去西安 🌫️
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white urban scene showing a man lying down and resting on a tricycle cart parked on a sidewalk. The cart has a sign with Chinese characters attached to it. The sidewalk runs alongside a road with parked cars, and above is a large elevated highway supported by tall concrete pillars. Trees line the sidewalk, and another elevated structure, possibly a monorail, runs parallel to the highway. The image captures a moment of rest amid the bustle …
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photograph taken through a narrow vertical slit, resembling a keyhole. The foreground is completely dark, framing a bright, well-lit doorway in the center. The doorway is surrounded by hanging vines or foliage, suggesting a garden or secluded courtyard. The contrast between the dark framing and the illuminated scene creates a sense of mystery, as if the viewer is peeking into a hidden or private space. The composition draws the eye d…
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white image of a cloudy sky with a single streetlight pole in the foreground. The pole has two lamps branching out at the top, forming a Y-shape. The sky is filled with dense, dark clouds, suggesting an impending storm or overcast weather. The minimalistic composition emphasizes the isolation of the streetlight against the dramatic sky, creating a somber and contemplative mood. The image captures the quiet tension of a moment before rain. …
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photograph of a long brick wall embedded with multiple black stone plaques. Each plaque is inscribed with vertical columns of Chinese characters, possibly historical or commemorative text. The wall stretches into the distance, creating depth and perspective. A paved walkway runs alongside the wall, and trees are visible in the background. The monochrome tone adds a solemn and reflective atmosphere, suggesting the site may be of cultu…
@arXiv_hepth_bot@mastoxiv.page
2025-08-19 09:23:00

Hilbert Space of Finite $N$ Multi-matrix Models
Robert de Mello Koch, Antal Jevicki
arxiv.org/abs/2508.11986 arxiv.org/pdf/2508.11986

Hilbert Space of Finite $N$ Multi-matrix Models
We study the Hilbert space structure of gauge-invariant operators emergent in large-$N$ multi-matrix quantum mechanics. Building on the framework of \cite{deMelloKoch:2025ngs}, we identify a class of light single-trace operators that behave like free creation operators at low energy but saturate beyond a critical excitation level, ceasing to generate new states. This $q$-reducibility is a direct consequence of finite N trace identities and leads to a dramatic truncation of the high-energy spect…

@leftsidestory@mstdn.social
2025-06-28 02:07:28

City Corners 🏙️
城市角落 🏙️
📷 Minolta Hi-Matic AF
🎞️ILFORD FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Ilford FP4 @ ISO 64 English alt text: Several potted plants, including tulips and leafy greens, are arranged on a surface against a wall. A circular cutout in the wall casts light and shadows, creating an artistic, serene atmosphere. 中文替代文字： 几个盆栽植物（包括郁金香和绿叶植物）整齐地摆放在一面墙前。墙上的圆形切口投射出光影，营造出一种艺术感和平静的氛围。
Ilford FP4 @ ISO 64 English alt text: A black and white photo of a simple wooden structure resembling a ladder or scaffolding, leaning against a wall. A cloth or tarp drapes loosely over one of the horizontal beams, while dappled shadows from nearby foliage create a play of light on the surface. 中文替代文字： 一张黑白照片展示了一个靠在墙上的简易木结构，类似梯子或脚手架。一个布料或帆布随意披在横梁上，附近植物的斑驳阴影投射在墙上，营造出光影交错的效果。
Ilford FP4 @ ISO 64 English alt text: A black and white image of a public art installation featuring three stylized, flat human silhouettes standing side by side. The central figure has a square graphic on its chest with the word “SOHO” printed on it. Behind the figures are trees, a railing, and urban architecture, lending a modern and minimalistic atmosphere. 中文替代文字： 一张黑白照片展示了一个公共艺术装置，由三个并排站立的人形剪影组成，中间的剪影胸前有一个印有“SOHO”字样的方形图案。背景中有树木、栏杆和城市建筑，营造出现代简约的氛围。
Ilford FP4 @ ISO 64 English alt text: A black and white photo of a bicycle parked beneath a small structure, possibly a staircase or canopy. The bike and overhead beams cast sharp, defined shadows on the concrete ground, with a circular manhole cover visible to the left. The dramatic lighting and contrast give the scene an atmospheric, almost cinematic quality. 中文替代文字： 一张黑白照片展示了一辆停在简易结构下的自行车，可能是楼梯或遮棚。自行车和上方横梁在混凝土地面上投下清晰锐利的阴影，左侧可见一个圆形井盖。光影的强烈对比赋予画面一种富有氛围的电影感。

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