Tootfinder

"Many Christians can’t identify with the word Christian anymore. No wonder the New Testament mentions 'Christian' just three times, as if reluctant to endorse a term that would become so easily exploited or distorted."
—Reflections editor Ray Waddle on the question "Is Christianity Losing its Religion?"

Just before the Kennedy Center's opening night performance of the musical "Les Miserables,"
Donald and Melania Trump stood to be recognized.
They were met with a loud chorus of boos.
Video of the moment shows the boos mixed with some cheering,
Some Trump supporters in the audience shouted "USA" chants in an attempt to drown out the booing.
In addition to the First Couple, both JD Vance and Usha Vance were also in attendance

'Embarrassing': Trump 'booed mercilessly' by Kennedy Center at 'Les Miserables' opening
Just before the Kennedy Center's opening night performance of the musical "Les Miserables," President Donald Trump and First Lady Melania Trump stood to be recognized. They were met with a loud chorus of boos.Video of the moment shows the boos mixed with some cheering, with Reuters White House corre...

$d$-Wave Flat Fermi Surface in Altermagnets Enables Maximum Charge-to-Spin Conversion
Junwen Lai, Tianye Yu, Peitao Liu, Long Liu, Guozhong Xing, Xing-Qiu Chen, Yan Sun
https://arxiv.org/abs/2506.07703

$d$-Wave Flat Fermi Surface in Altermagnets Enables Maximum Charge-to-Spin Conversion
Altermagnets combine antiferromagnetic order with ferromagnet-like spin splitting, a duality that unlocks ultrafast spin-dependent responses. This unique property creates unprecedented opportunities for spin-current generation, overcoming the intrinsic limitations of conventional spin-transfer and spin-orbit torque approaches in magnetic memory technologies. Here, we establish a fundamental relationship between Fermi surface geometry and time-reversal-odd ($\mathcal{T}$-odd) spin currents in al…

High-Dimensional Model Averaging via Cross-Validation
Zhengyan Wan, Fang Fang, Binyan Jiang
https://arxiv.org/abs/2506.08451 https://…

High-Dimensional Model Averaging via Cross-Validation
Model averaging is an important alternative to model selection with attractive prediction accuracy. However, its application to high-dimensional data remains under-explored. We propose a high-dimensional model averaging method via cross-validation under a general framework and systematically establish its theoretical properties. Each candidate model is fitted using a flexible loss function paired with a general regularizer, and the optimal weights are determined by minimizing a cross-validation…

He does, does he? I think he may find Scotland has other plans.
#ScotPol
#ColonialExtraction

Doodle Your Keypoints: Sketch-Based Few-Shot Keypoint Detection
Subhajit Maity, Ayan Kumar Bhunia, Subhadeep Koley, Pinaki Nath Chowdhury, Aneeshan Sain, Yi-Zhe Song
https://arxiv.org/abs/2507.07994

Doodle Your Keypoints: Sketch-Based Few-Shot Keypoint Detection
Keypoint detection, integral to modern machine perception, faces challenges in few-shot learning, particularly when source data from the same distribution as the query is unavailable. This gap is addressed by leveraging sketches, a popular form of human expression, providing a source-free alternative. However, challenges arise in mastering cross-modal embeddings and handling user-specific sketch styles. Our proposed framework overcomes these hurdles with a prototypical setup, combined with a gr…

Equivalence of Optical Theorems
Edwin A. Marengo, Mohammadrasoul Taghavi
https://arxiv.org/abs/2506.08943 https://arxiv.org/pdf/2506.…

Equivalence of Optical Theorems
We demonstrate, in the full vector formulation of electromagnetic fields, that the well-known optical theorem pertinent for the characterization of a scatterer's extinction power and associated cross section can be expressed in a multitude of alternative equivalent forms. These alternatives involve different forms of projective field measurements or detectors. The inherent nonuniqueness of such optical-theorem-based detectors stems from the nonuniqueness of an associated inverse source problem,…

Holomorphic bootstrap for RCFT: signs and bounds for quasi-characters
Arpit Das, Sunil Mukhi
https://arxiv.org/abs/2507.07170 https://

Holomorphic bootstrap for RCFT: signs and bounds for quasi-characters
Quasi-characters are solutions of simple modular differential equations that form an explicit basis for the space of all admissible characters that can potentially describe rational CFT. They were classified for rank-$2$ in arXiv:1810.09472 [hep-th], where it was conjectured that their $q$-series has coefficients of alternating sign that stabilise to a fixed sign at order $\frac{c}{12}$ and sometimes undergo more exotic behaviour -- where $c$ is the central charge. Here we prove some of these c…

Sensor Fusion for Track Geometry Monitoring: Integrating On-Board Data and Degradation Models via Kalman Filtering
Huy Truong-Ba, Jacky Chin, Michael E. Cholette, Pietro Borghesani
https://arxiv.org/abs/2506.08028

Sensor Fusion for Track Geometry Monitoring: Integrating On-Board Data and Degradation Models via Kalman Filtering
Track geometry monitoring is essential for maintaining the safety and efficiency of railway operations. While Track Recording Cars (TRCs) provide accurate measurements of track geometry indicators, their limited availability and high operational costs restrict frequent monitoring across large rail networks. Recent advancements in on-board sensor systems installed on in-service trains offer a cost-effective alternative by enabling high-frequency, albeit less accurate, data collection. This study…

Ukraine: Kind stirbt bei Angriff in Charkiw
Bei den russischen Angriffen auf die Ukraine in der Nacht hat es mehrere Tote gegeben. Im nordostukrainischen Charkiw starb nach Polizeiangaben ein achtjähriger Junge, als eine Drohne ein Auto traf. Ein Vierjähriger und ein 40 Jahre alter Mann seien bei dem Angriff verletzt worden, hieß es. Die Behörden in der umkämpften Region Cherson im Süden des Landes meldeten am Morgen außerdem…
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Ukraine-Liveblog: ++ Steinmeier sagt Litauen Hilfe bei Verteidigung zu ++
Bundespräsident Steinmeier hat Litauen die Unterstützung Deutschlands bei der Verteidigung seiner Freiheit zugesichert. Bei russischen Drohnenangriffen sind laut Ukraine nördlich von Kiew mehrere Menschen verletzt worden.