Tootfinder

tiDAS: a time invariant approximation of the Delay and Sum algorithm for biomedical ultrasound PSF reconstructions
Chiara Razzetta, Sara Garbarino, Michele Piana, Marco Crocco, Federico Benvenuto
https://arxiv.org/abs/2507.15464

tiDAS: a time invariant approximation of the Delay and Sum algorithm for biomedical ultrasound PSF reconstructions
Ultrasound imaging is a real-time diagnostic modality that reconstructs acoustic signals into visual representations of internal body structures. A key component in this process is beamforming, with the Delay and Sum (DAS) algorithm being a standard due to its balance between simplicity and effectiveness. However, the computational cost of DAS can be a limiting factor, especially in real-time scenarios where fast frame reconstruction is essential. In this work, we introduce a time-invariant app…

Bayesian inference of antibody evolutionary dynamics using multitype branching processes
Athanasios G. Bakis, Ashni A. Vora, Tatsuya Araki, Tongqiu Jia, Jared G. Galloway, Chris Jennings-Shaffer, Gabriel D. Victora, Yun S. Song, William S. DeWitt, Frederick A. Matsen IV, Volodymyr M. Minin
https://arxiv.org/abs/2508.09519

Bayesian inference of antibody evolutionary dynamics using multitype branching processes
When our immune system encounters foreign antigens (i.e., from pathogens), the B cells that produce our antibodies undergo a cyclic process of proliferation, mutation, and selection, improving their ability to bind to the specific antigen. Immunologists have recently developed powerful experimental techniques to investigate this process in mouse models. In one such experiment, mice are engineered with a monoclonal B-cell precursor and immunized with a model antigen. B cells are sampled from sac…

Lagrangian Stability Analysis Technique for Fluid Flows
Vilas J. Shinde
https://arxiv.org/abs/2509.10316 https://arxiv.org/pdf/2509.10316

Lagrangian Stability Analysis Technique for Fluid Flows
Flow transition from a stable to unstable states and eventually to turbulence is a classical fluid mechanics phenomenon with a strong practical relevance. Conventional hydrodynamic stability deals with perturbation dynamics on a steady baseflow, typically in Eulerian reference frame. Common modal techniques, e.g., linear stability theory, involve linearization of governing flow equations and flow/geometrical simplifications, which can be tedious and restrictive. This paper presents a perturbati…

Unified description of cuprate superconductors by fractionalized electrons emerging from integrated analyses of photoemission spectra and quasiparticle interference
Shiro Sakai, Youhei Yamaji, Fumihiro Imoto, Tsuyoshi Tamegai, Adam Kaminski, Takeshi Kondo, Yuhki Kohsaka, Tetsuo Hanaguri, Masatoshi Imada
https://arxiv.org/abs/2508.01297

Unified description of cuprate superconductors by fractionalized electrons emerging from integrated analyses of photoemission spectra and quasiparticle interference
Electronic structure of high-temperature superconducting cuprates is studied by analyzing experimental data independently obtained from two complementary spectroscopies, one, quasiparticle interference (QPI) measured by scanning-tunneling microscopy and the other, angle-resolved photoemission spectroscopy (ARPES) and by combining these two sets of data in a unified theoretical analysis. Through explicit calculations of experimentally measurable quantities, we show that a simple two-component fe…

I used to think "Hey, AI could help with tedious editing chores".
I no longer think that.

Absence of higher than 6-fold coordination in glassy $GeO_{2}$ up to 158 GPa revealed by X-ray absorption spectroscopy
Jo\~ao Elias F. S. Rodrigues, Angelika D. Rosa, Emin Mijit, Tetsuo Irifune, Gaston Garbarino, Olivier Mathon, Raffaella Torchio, Max Wilke
https://arxiv.org/abs/2507.04076…

Absence of higher than 6-fold coordination in glassy $GeO_{2}$ up to 158 GPa revealed by X-ray absorption spectroscopy
Simple binary oxide glasses can exhibit a compression behavior distinct from that of their crystalline counterparts. In this study, we employed high-pressure X-ray absorption spectroscopy coupled to the diamond anvil cell to investigate in detail local structural changes around Ge in glassy $GeO_{2}$ up to 158 GPa. We conducted four independent runs, both with and without pressure-transmitting media. Up to 30 GPa, we observed no significant influence of the pressure medium on the pressure depen…

Quantitative imaging of 478-keV prompt gamma rays from boron neutron capture reactions
Tetsuya Mizumoto, Shotaro Komura, Atsushi Takada, Yoshinori Sakurai, Toru Tanimori
https://arxiv.org/abs/2509.00435

Quantitative imaging of 478-keV prompt gamma rays from boron neutron capture reactions
The accurate imaging and quantitative measurement of 478-keV prompt gamma rays are critical for advancing boron neutron capture therapy (BNCT), a promising cancer treatment. Although numerical simulations have indicated that such measurements are feasible, their practical application has proven challenging. This study introduces a gamma-ray imaging detector designed specifically for precise BNCT measurements. Using boron-rich phantom samples, we successfully imaged 478-keV gamma rays and establ…

Information Propagation in Predator-Prey Dynamics of Turbulent Plasma
Tomohiro Tanogami, Makoto Sasaki, Tatsuya Kobayashi
https://arxiv.org/abs/2508.05127 https://

Information Propagation in Predator-Prey Dynamics of Turbulent Plasma
Magnetically confined fusion plasmas exhibit predator-prey-like cyclic oscillations through the self-regulating interaction between drift-wave turbulence and zonal flow. To elucidate the detailed mechanism and causality underlying this phenomenon, we construct a simple stochastic predator-prey model that incorporates intrinsic fluctuations and analyze its statistical properties from an information-theoretic perspective. We first show that the model exhibits persistent fluctuating cyclic oscilla…