Tootfinder

Kindle Scribe Colorsoft: Amazons erstes E-Ink-Tablet mit Stift in Farbe
Amazon hat heute ein neues Kindle Scribe-Portfolio mit gleich vier neuen Modellen angekündigt, erstmals auch mit Farb-Display.
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STRAPSim: A Portfolio Similarity Metric for ETF Alignment and Portfolio Trades
Mingshu Li, Dhruv Desai, Jerinsh Jeyapaulraj, Philip Sommer, Riya Jain, Peter Chu, Dhagash Mehta
https://arxiv.org/abs/2509.24151

STRAPSim: A Portfolio Similarity Metric for ETF Alignment and Portfolio Trades
Accurately measuring portfolio similarity is critical for a wide range of financial applications, including Exchange-traded Fund (ETF) recommendation, portfolio trading, and risk alignment. Existing similarity measures often rely on exact asset overlap or static distance metrics, which fail to capture similarities among the constituents (e.g., securities within the portfolio) as well as nuanced relationships between partially overlapping portfolios with heterogeneous weights. We introduce STRAP…

Bayesian Surrogates for Risk-Aware Pre-Assessment of Aging Bridge Portfolios
Sophia V. Kuhn, Rafael Bischof, Marius Weber, Antoine Binggeli, Michael A. Kraus, Walter Kaufmann, Fernando P\'erez-Cruz
https://arxiv.org/abs/2509.25031

Bayesian Surrogates for Risk-Aware Pre-Assessment of Aging Bridge Portfolios
Aging infrastructure portfolios pose a critical resource allocation challenge: deciding which structures require intervention and which can safely remain in service. Structural assessments must balance the trade-off between cheaper, conservative analysis methods and accurate but costly simulations that do not scale portfolio-wide. We propose Bayesian neural network (BNN) surrogates for rapid structural pre-assessment of worldwide common bridge types, such as reinforced concrete frame bridges. T…

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

"Drifting"
#MusicVideo #PeerTube #NonCommercial

Markowitz Variance May Vastly Undervalue or Overestimate Portfolio Variance and Risks
Victor Olkhov
https://arxiv.org/abs/2507.21824 https://arxiv.org/pdf/…

Markowitz Variance May Vastly Undervalue or Overestimate Portfolio Variance and Risks
We consider the investor who doesn't trade shares of his portfolio. The investor only observes the current trades made in the market with his securities to estimate the current return, variance, and risks of his unchanged portfolio. We show how the time series of consecutive trades made in the market with the securities of the portfolio can determine the time series that model the trades with the portfolio as with a single security. That establishes the equal description of the market-based var…

Polarization at millimeter wavelengths caused by drifting grains in protoplanetary disks
Moritz Lietzow-Sinjen, Stefan Reissl, Mario Flock, Sebastian Wolf
https://arxiv.org/abs/2509.24594

Polarization at millimeter wavelengths caused by drifting grains in protoplanetary disks
During the evolution of protoplanetary disks, dust grains start to grow, form larger particles, settle to the midplane, and rearrange the disk, mainly by the inward radial drift. Because of this, dust pebbles with an irregular shape usually align mechanically and thus cause polarization signatures in their thermal radiation due to dichroic emission or absorption. The goal of this paper is to evaluate the potential to trace the impact of mechanical grain alignment in protoplanetary disks on the …

heise | KI als Anlageberater: Wie Sie mit ChatGPT & Co. an der Börse Geld verdienen
KIs erstellen auf Nachfrage umfangreiche Aktien-Portfolios. Wir haben fünf getestet und sind dabei auf positive und negative Überraschungen gestoßen.

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.

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/