Tootfinder

JWST Imaging of Edge-on #Protoplanetary Disks - Appearance of Edge-on Disks with a Tilted Inner Region - Case Study of IRAS04302 2247: https://iopscience.iop.org/article/10.3847/1538-4357/ad0c4b -> Dusty wisps round a dusty disc: https://esawebb.org/images/potm2508a/ / https://www.esa.int/Science_Exploration/Space_Science/Webb/Dusty_wisps_round_a_dusty_disc

Sony-Kamerasteuerung kommt auf den Mac – mit dickem Pferdefuß
Die App Monitor & Control, mit der man teure Alphas von Sony steuern kann, bekam viel Lob. Mit der brandneuen macOS-Version zieht sich der Konzern Kritik zu.

"Drifting"
#MusicVideo #PeerTube #NonCommercial

Quantum Portfolio Optimization with Expert Analysis Evaluation
Nouhaila Innan, Ayesha Saleem, Alberto Marchisio, Muhammad Shafique
https://arxiv.org/abs/2507.20532 https://

Quantum Portfolio Optimization with Expert Analysis Evaluation
Quantum algorithms have gained increasing attention for addressing complex combinatorial problems in finance, notably portfolio optimization. This study systematically benchmarks two prominent variational quantum approaches, Variational Quantum Eigensolver (VQE) and Quantum Approximate Optimization Algorithm (QAOA), under diverse experimental settings, including different asset universes, ansatz architectures, and circuit depths. Although both methods demonstrate effective cost function minimiz…

Modal Geometry Governs Proteoform Dynamics
James N. Cobley
https://arxiv.org/abs/2508.20004 https://arxiv.org/pdf/2508.20004…

Modal Geometry Governs Proteoform Dynamics
A central mystery is how a specific proteoform, a distinct molecular variant of a protein, dynamically shapes its own future by evolving into new modes that exist only in potential until realised. Here, Modal Geometric Field (MGF) Theory couples real and abstract proteoform transitions through four axioms. Axioms one-three (invariant) dictate that only first-order transitions occur on the discrete, volume invariant, non symplectic modal manifold. Axiom four (mutable) functorially projects the g…

Cocoon-to-Butterfly Transformation in Protoplanetary Nebula: Detection of a Spherical Halo and a Barrel-shaped Torus in IRAS 06530$-$0213
Hao-Min Sun, Yong Zhang, Sheng-Li Qin
https://arxiv.org/abs/2508.19666

Cocoon-to-Butterfly Transformation in Protoplanetary Nebula: Detection of a Spherical Halo and a Barrel-shaped Torus in IRAS 06530$-$0213
Protoplanetary nebulae (PPNs) represent a critical evolutionary bridging stage between the asymptotic giant branch (AGB) and planetary nebula (PN) stages. Their dynamical structures provide key insights into late stellar evolution. Here, we report CO and $^{13}$CO imaging observations of the carbon-rich PPN IRAS 06530$-$0213, a source exhibiting the unidentified 21 micron emission band, conducted with the Northern Extended Millimeter Array (NOEMA). The CO maps reveal a spherical halo (diameter …

Je cherche des personnes s'étant inscrit sur #Peertube).
Il y a un peu moins de 4 moins j'avais essayé de upload des vidéos sans succès (Š chaque fois le % revenait Š 0%).

Winding Motion of Spirals in a Gravitationally Unstable #Protoplanetary Disk: https://arxiv.org/abs/2509.19761 -> Winding Motion of Planet-Forming Spirals Captured on Video for the First Time: https://alma-telescope.jp/en/news/press/vimage-202509.html -> Spirals in Planet-Forming Disk Caught Twisting for the First Time with ALMA: https://www.almaobservatory.org/en/press-releases/spirals-in-planet-forming-disk-caught-twisting-for-the-first-time-with-alma/

Look And Listen (sing-along)
Music:
Look And Listen
Mister Rogers
It's Such A Good Feeling: The Best Of Mister Rogers
Full videos:
1. https://peertube.wtf/videos/embed/4nbtJwdPQwZBMpsP2TzFkf
2.

Achieving High-Quality Portfolio Optimization with the Variational Quantum Eigensolver
Anbang Wang, Zhonggang Lv, Zhenyuan Ma, Dunbo Cai, Zhihong Zhang
https://arxiv.org/abs/2508.18625

Achieving High-Quality Portfolio Optimization with the Variational Quantum Eigensolver
Portfolio optimization is a fundamental problem in finance that aims to determine the optimal allocation of assets within a portfolio to maximize returns while minimizing risk. It can be formulated as a Quadratic Unconstrained Binary Optimization (QUBO) problem, which is NP-hard. Quantum computing offers the potential to solve such problems more efficiently than classical methods. In this work, we employ the Variational Quantum Eigensolver (VQE) to address the portfolio optimization problem. To…