Tootfinder

The Ultimate I-band Calibration of the TRGB Standard Candle
A. Udalski, D. M. Skowron, J. Skowron, M. K. Szyma\'nski, I. Soszy\'nski, P. Pietrukowicz, P. Mr\'oz, R. Poleski, S. Koz{\l}owski, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Gromadzki, M. Wrona, M. Ratajczak, M. J. Mr\'oz
https://arxiv.org/abs/2506.20766

The Ultimate I-band Calibration of the TRGB Standard Candle
We present the ultimate I-band calibration of the tip of the red giant branch (TRGB) standard candle. Our calibration is based on photometry from the outer parts of the Large Magellanic Cloud, 2.75

deuce is loose 🚨#CowboysCamp | ​⁠@AmericanAirlines https://www.youtube.com/shorts/uuL2guj9LOI

Evaluation of facial landmark localization performance in a surgical setting
Ines Frajtag, Marko \v{S}vaco, Filip \v{S}uligoj
https://arxiv.org/abs/2507.18248 https://

Evaluation of facial landmark localization performance in a surgical setting
The use of robotics, computer vision, and their applications is becoming increasingly widespread in various fields, including medicine. Many face detection algorithms have found applications in neurosurgery, ophthalmology, and plastic surgery. A common challenge in using these algorithms is variable lighting conditions and the flexibility of detection positions to identify and precisely localize patients. The proposed experiment tests the MediaPipe algorithm for detecting facial landmarks in a …

CFP: Kunstbäume in Text und Bild der Vormoderne 2.0. – Kommunikation in ökologischen Verflechtungen, Frankfurt am Main (13.07.2025)
https://ift.tt/uLxXhej
New Journal and CFP: Inaugural Issue of Central Europe Yearbook Now Available The…
via Input 4 RELCFP

Why I Abruptly Stopped Using Ulysses After Twelve Years: https://marginally.ghost.io/why-i-abruptly-stopped-using-ulysses-after-twelve-years/
As of this weekend I have switched away from Ulysses, a writing app I have used for over twelve years.…

Why I Abruptly Stopped Using Ulysses After Twelve Years
As of this weekend I have switched away from Ulysses, a writing app I have used for over twelve years. It’s worth taking a moment to explain why.

Symmetric Private Information Retrieval (SPIR) on Graph-Based Replicated Systems
Shreya Meel, Sennur Ulukus
https://arxiv.org/abs/2507.17736 https://arxiv.…

Symmetric Private Information Retrieval (SPIR) on Graph-Based Replicated Systems
We introduce the problem of symmetric private information retrieval (SPIR) on replicated databases modeled by a simple graph. In this model, each vertex corresponds to a server, and a message is replicated on two servers if and only if there is an edge between them. We consider the setting where the server-side common randomness necessary to accomplish SPIR is also replicated at the servers according to the graph, and we call this as message-specific common randomness. In this setting, we estab…

Quotegraph: A Social Network Extracted from Millions of News Quotations
Marko \v{C}uljak, Robert West, Andreas Spitz, Akhil Arora
https://arxiv.org/abs/2507.17626 https://

Quotegraph: A Social Network Extracted from Millions of News Quotations
We introduce Quotegraph, a novel large-scale social network derived from speaker-attributed quotations in English news articles published between 2008 and 2020. Quotegraph consists of 528 thousand unique nodes and 8.63 million directed edges, pointing from speakers to persons they mention. The nodes are linked to their corresponding items in Wikidata, thereby endowing the dataset with detailed biographic entity information, including nationality, gender, and political affiliation. Being derived…

The Bode Plots for Sliding-Mode Control Design
Ulises P\'erez-Ventura
https://arxiv.org/abs/2507.16281 https://arxiv.org/pdf/2507…

The Bode Plots for Sliding-Mode Control Design
This paper develops a unified frequency-domain framework for the analysis of sliding-mode control systems, encompassing both discontinuous and Lipschitz-continuous implementations. Using describing function (DF) theory, closed-form expressions are derived for the amplitude and frequency of chattering oscillations, as well as equivalent gain (EG) models that enable closed-loop sensitivity analysis. The proposed methodology captures the influence of actuator dynamics, control parameters, and dist…

The Capacity of Semantic Private Information Retrieval with Colluding Servers
Mohamed Nomeir, Alptug Aytekin, Sennur Ulukus
https://arxiv.org/abs/2507.15818

The Capacity of Semantic Private Information Retrieval with Colluding Servers
We study the problem of semantic private information retrieval (Sem-PIR) with $T$ colluding servers (Sem-TPIR), i.e., servers that collectively share user queries. In Sem-TPIR, the message sizes are different, and message retrieval probabilities by any user are not uniform. This is a generalization of the classical PIR problem where the message sizes are equal and message retrieval probabilities are identical. The earlier work on Sem-PIR considered the case of no collusions, i.e., the collusion…

X-Shooting ULLYSES: Massive stars at low metallicity. XIII. Putting the bi-stability jump to the test in the LMC
T. Alkousa (Astrophysics Research Cluster, School of Mathematical and Physical Sciences, University of Sheffield), P. A. Crowther (Astrophysics Research Cluster, School of Mathematical and Physical Sciences, University of Sheffield), J. M. Bestenlehner (Astrophysics Research Cluster, School of Mathematical and Physical Sciences, University of Sheffield, School of Chemical, M…

X-Shooting ULLYSES: Massive stars at low metallicity. XIII. Putting the bi-stability jump to the test in the LMC
We aim to investigate the theoretical bi-stability jump, which predicts an increase in mass-loss rates below 21 kK. We further aim to constrain the photospheric and wind parameters of a sample of 16 LMC late-O and B supergiants. We utilise the 1D, non-LTE radiative transfer model CMFGEN in a grid-based approach and subsequent fine-tuned spectroscopic fitting procedure to determine the stellar and wind parameters of each star. We apply this method to ultra-violet data from the ULLYSES programme …