Tootfinder

Variable Selection in Functional Linear Cox Model
Yuanzhen Yue, Stella Self, Yichao Wu, Jiajia Zhang, Rahul Ghosal
https://arxiv.org/abs/2506.02524 https:/…

Variable Selection in Functional Linear Cox Model
Modern biomedical studies frequently collect complex, high-dimensional physiological signals using wearables and sensors along with time-to-event outcomes, making efficient variable selection methods crucial for interpretation and improving the accuracy of survival models. We propose a novel variable selection method for a functional linear Cox model with multiple functional and scalar covariates measured at baseline. We utilize a spline-based semiparametric estimation approach for the function…

Surrogate models for lightcurves and photosphere properties of Type II supernovae
Nikhil Sarin, Takashi J. Moriya, Avinash Singh, Anjasha Gangopadhyay, K-Ryan Hinds, Steve Schulze, Conor M. B. Omand, Kaustav K. Das
https://arxiv.org/abs/2506.02107

Surrogate models for lightcurves and photosphere properties of Type II supernovae
Inferences on the properties Type II supernovae (SNe) can provide significant insights into the lives and deaths of the astrophysical population of massive stars and potentially provide measurements of luminosity distance, independent of the distance ladder. Here, we introduce surrogate models for the photospheric properties and lightcurves of Type II SNe trained on a large grid of simulations from the radiation hydrodynamics code, {\sc stella}. The trained model can accurately and efficiently …

Rational and non-rational two-dimensional conformal field theories arising from lattices
Maria Stella Adamo, Luca Giorgetti, Yoh Tanimoto
https://arxiv.org/abs/2506.01008

Rational and non-rational two-dimensional conformal field theories arising from lattices
For a (finite-dimensional) real Hilbert space $\mathfrak h$ and an orthogonal projection $p$, we consider the associated Heisenberg Lie algebra and the two-dimensional Heisenberg conformal net. Given an even lattice $Q$ in $\mathfrak h$ with respect to the indefinite bilinear form on $\mathfrak h$ defined by $p$, we construct a two-dimensional conformal net ${\mathcal A}_Q$ extending the Heisenberg conformal net. Moreover, with a certain discreteness assumption on the spectrum of the extension,…

Stellar populations in STARFORGE II: Comparison with observations
Juan P. Farias, Stella S. R. Offner, Ronan Kerr, Michael Y. Grudi\'c
https://arxiv.org/abs/2506.00240

Stellar populations in STARFORGE II: Comparison with observations
Recent studies suggest that most star-forming regions in our Galaxy form stellar associations rather than bound clusters. We analyse models from the STARFORGE simulation suite, a set of magneto-hydrodynamical simulations that include all key stellar feedback and radiative processes following star formation through cloud dispersal. We create synthetic observations by introducing observational biases such as random spurious measurements, unresolved binaries, and photometric sensitivity. These bia…

The Northern Cross Fast Radio Burst project: V. Search for transient radio emission from Galactic magnetars
A. Geminardi, P. Esposito, G. Bernardi, M. Pilia, D. Pelliciari, G. Naldi, D. Dallacasa, R. Turolla, L. Stella, F. Perini, F. Verrecchia, C. Casentini, M. Trudu, R. Lulli, A. Maccaferri, A. Magro, A. Mattana, G. Bianchi, G. Pupillo, C. Bortolotti, M. Tavani, M. Roma, M. Schiaffino, G. Setti

The Northern Cross Fast Radio Burst project: V. Search for transient radio emission from Galactic magnetars
Context. The radio emission from magnetars is poorly understood and poorly characterized observationally, in particular for what concerns single pulses and sporadic events. The interest in it was boosted by the detection in 2020 of an extremely bright ms radio signal from the Galactic magnetar designated Soft Gamma Repeater (SGR) SGR J1935+2154, which occurred almost simultaneously with a typical magnetar short burst of X-rays. As of now, this event remains the Galactic radio pulse that is the …

Unser herzliches Beileid allen, die um Papst Franziskus trauern.
Wir sind ihm sehr dankbar, dass er sich immer wieder für die Seeleute und Fischer eingesetzt hat, wie in der Corona Pandemie (s. Link) - und für die zivile Seenotrettung.
In ökumenischer Verbundenheit arbeiten wir mit der katholischen Seemannsmission Stella Maris zusammen.

Vatikan beklagt fehlende Wertschätzung für Seefahrer
In einer Botschaft zum "Sonntag des Meeres" an diesem Sonntag hat der Vatikan eine mangelhafte Wertschätzung von Seeleuten in der Covid-19-Pandemie beklagt. Nur wenige Länder hätten etwa bei Impfungen Seeleute bevorzugt.

Prediction and Synthesis of Mg$_4$Pt$_3$H$_6$: A Metallic Complex Transition Metal Hydride Stabilized at Ambient Pressure
Wencheng Lu, Michael J. Hutcheon, Mads F. Hansen, Kapildeb Dolui, Shubham Sinha, Mihir R. Sahoo, Chris J. Pickard, Christoph Heil, Anna Pakhomova, Mohamed Mezouar, Dominik Daisenberger, Stella Chariton, Vitali Prakapenka, Matthew N. Julian, Rohit P. Prasankumar, Timothy A. Strobel

Prediction and Synthesis of Mg$_4$Pt$_3$H$_6$: A Metallic Complex Transition Metal Hydride Stabilized at Ambient Pressure
The low-pressure stabilization of superconducting hydrides with high critical temperatures ($T_c$s) remains a significant challenge, and experimentally verified superconducting hydrides are generally constrained to a limited number of structural prototypes. Ternary transition-metal complex hydrides (hydrido complexes)-typically regarded as hydrogen storage materials-exhibit a large range of compounds stabilized at low pressure with recent predictions for high-$T_c$ superconductivity. Motivated …

Ya know, I thought my boy's little league team was confusing with Jordan, Jayden, Jason, Jackson, and Jaxon, but my girl's softball team has a Stella, a Bella, two Ellas, a Belle, and a Nell. I'm very tired...