Tootfinder

Open Questions about Time and Self-reference in Living Systems
Samson Abramsky, Wolfgang Banzhaf, Leo S. D. Caves, Michael Levin, Penousal Machado, Charles Ofria, Susan Stepney, Roger White
https://arxiv.org/abs/2508.11423

Open Questions about Time and Self-reference in Living Systems
Living systems exhibit a range of fundamental characteristics: they are active, self-referential, self-modifying systems. This paper explores how these characteristics create challenges for conventional scientific approaches and why they require new theoretical and formal frameworks. We introduce a distinction between 'natural time', the continuing present of physical processes, and 'representational time', with its framework of past, present and future that emerges with life itself. Representa…

Samson Ebukam drops Geno Smith for Colts' fourth sack of game vs. Raiders https://www.nfl.com/videos/samson-ebukam-drops-geno-smith-for-colts-fourth-sack-of-game-vs-raiders

🇺🇦 #NowPlaying on KEXP's #EasternEchoes
Sam Son:
🎵 I Don't Know
#SamSon
https://samphillipsdc.bandcamp.com/album/dont-know-if-i-made-it-back-home

HIGHLIGHT | Samson Ebukam drops Geno Smith for Colts' fourth sack of game https://www.colts.com/video/highlight-samson-ebukam-drops-geno-smith-for-colts-fourth-sack-of-game-week-5-2025

Per-antenna power constraints: constructing Pareto-optimal precoders with cubic complexity under non-negligible noise conditions
Sergey Petrov, Samson Lasaulce, Merouane Debbah
https://arxiv.org/abs/2508.09646

Per-antenna power constraints: constructing Pareto-optimal precoders with cubic complexity under non-negligible noise conditions
Precoding matrix construction is a key element of the wireless signal processing using the multiple-input and multiple-output model. It is established that the problem of global throughput optimization under per-antenna power constraints belongs, in general, to the class of monotonic optimization problems, and is unsolvable in real-time. The most widely used real-time baseline is the suboptimal solution of Zero-Forcing, which achieves a cubic complexity by discarding the background noise coeffi…

Randomized and quantum approximate matrix multiplication
Simon Apers, Arjan Cornelissen, Samson Wang
https://arxiv.org/abs/2510.08509 https://arxiv.org/pdf…

Randomized and quantum approximate matrix multiplication
The complexity of matrix multiplication is a central topic in computer science. While the focus has traditionally been on exact algorithms, a long line of literature also considers randomized algorithms, which return an approximate solution in faster time. In this work, we adopt a unifying perspective that frames these randomized algorithms in terms of mean estimation. Using it, we first give refined analyses of classical algorithms based on random walks by Cohen-Lewis (`99), and based on sketc…

Samson, my dog, pooped on a police officer’s lawn. Charges may be pending for "assault with a deadly weapon.” 💩🔫
#DogsofMastodon

🔊 #NowPlaying on #BBCRadio3:
#InTune
- Live from the Edinburgh International Festival
Petroc Trelawny presents In Tune from The Hub in Edinburgh, with live music from the Dunedin Consort, pianists Pavel Kolesnikov and Samson Tsoy, and virtuoso fiddler Roby Lakatos
Relisten now 👇
https://www.bbc.co.uk/programmes/m002ggf8

Optimizing Health Coverage in Ethiopia: A Learning-augmented Approach and Persistent Proportionality Under an Online Budget
Davin Choo, Yohai Trabelsi, Fentabil Getnet, Samson Warkaye Lamma, Wondesen Nigatu, Kasahun Sime, Lisa Matay, Milind Tambe, St\'ephane Verguet
https://arxiv.org/abs/2509.00135…

Optimizing Health Coverage in Ethiopia: A Learning-augmented Approach and Persistent Proportionality Under an Online Budget
As part of nationwide efforts aligned with the United Nations' Sustainable Development Goal 3 on Universal Health Coverage, Ethiopia's Ministry of Health is strengthening health posts to expand access to essential healthcare services. However, only a fraction of this health system strengthening effort can be implemented each year due to limited budgets and other competing priorities, thus the need for an optimization framework to guide prioritization across the regions of Ethiopia. In this pape…

Happy #caturday, everyone.
John K. Samson, "Plea From A Cat Named Virtute" (live, 2017)
https://youtu.be/lTrcuvuHj3E

On the quadratic barycentric transport problem
Nathael Gozlan (MAP5 - UMR 8145), Thibaut Le Gouic (I2M), Paul-Marie Samson (LAMA)
https://arxiv.org/abs/2509.04935 https://

On the quadratic barycentric transport problem
We investigate the structure of optimal transport plans, dual optimizers, and geodesic paths for the quadratic barycentric transport problem.

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. III. Detectability of Giant Exomoons of Wide Separation Giant Planets
Matthew Lastovka, B. Scott Gaudi, Samson A. Johnson, Matthew T. Penny, Eamonn Kerins, Nicholas J. Rattenbury
https://arxiv.org/abs/2509.03492

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. III. Detectability of Giant Exomoons of Wide Separation Giant Planets
The Nancy Grace Roman Space Telescope (Roman) will conduct a Galactic Exoplanet Survey (RGES) to discover bound and free-floating exoplanets using gravitational microlensing. Roman should be sensitive to lenses with mass down to ~ 0.02 $M_{\oplus}$, or roughly the mass of Ganymede. Thus the detection of moons with masses similar to the giant moons in our Solar System is possible with Roman. Measuring the demographics of exomoons will provide constraints on both moon and planet formation. We con…

A Near-Infrared Extinction and Reddening Map Towards the Galactic Bulge Using UKIRT
Aiden S. Zelakiewicz, Samson A. Johnson, B. Scott Gaudi, Geoffrey Bryden, David M. Nataf, Yossi Shvartzvald
https://arxiv.org/abs/2509.25440

A Near-Infrared Extinction and Reddening Map Towards the Galactic Bulge Using UKIRT
The Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events. Studies toward the Galactic bulge are complicated by the large and variable extinction along the line of sight. We measure the near-infrared $A_{K_S}$ extinction and $E(H-K_S)$ reddening in this region using $H$- and $K$-band photometry obtained with the 2017 UKIRT microlensing survey. We fit the apparent magnitude and color distribution …

Crosslisted article(s) found for astro-ph.IM. https://arxiv.org/list/astro-ph.IM/new
[1/1]:
- What's in Your Transit? Towards Reliably Getting $5\times$ More Science from Exoplanet Transit Data
Samson J. Mercier, Julien de Wit, Benjamin V. Rackham

🇺🇦 #NowPlaying on KEXP's #MiddayShow
John K. Samson:
🎵 Prayer for Ruby Elm
#JohnKSamson
https://johnksamsonmusic.bandcamp.com/album/prayer-for-ruby-elm-may-we-grow-film-version
https://open.spotify.com/track/38iuUFdWg9YVPJLfJH9I70

Polarization-Aware DoA Detection Relying on a Single Rydberg Atomic Receiver
Yuanbin Chen, Chau Yuen, Darmindra Arumugam, Chong Meng Samson See, M\'erouane Debbah, Lajos Hanzo
https://arxiv.org/abs/2508.17179

Polarization-Aware DoA Detection Relying on a Single Rydberg Atomic Receiver
A polarization-aware direction-of-arrival (DoA) detection scheme is conceived that leverages the intrinsic vector sensitivity of a single Rydberg atomic vapor cell to achieve quantum-enhanced angle resolution. Our core idea lies in the fact that the vector nature of an electromagnetic wave is uniquely determined by its orthogonal electric and magnetic field components, both of which can be retrieved by a single Rydberg atomic receiver via electromagnetically induced transparency (EIT)-based spe…

Triple-strangeness hidden-charm pentaquarks
Samson Clymton, Hyun-Chul Kim, Terry Mart
https://arxiv.org/abs/2508.12293 https://arxiv.org/pdf/2508.12293

Triple-strangeness hidden-charm pentaquarks
We investigate the possible existence of triple-strangeness hidden-charm pentaquark states in the off-shell coupled-channel formalism. The open-charm meson-baryon $\bar{D}_sΩ_c$, $\bar{D}_sΩ_c^*$, $\bar{D}_s^*Ω_c$, and $\bar{D}_s^*Ω_c^*$ channels are considered, together with the hidden-charm $J/ψΩ$ channel. The two-body kernel Feynman amplitudes are constructed from an effective Lagrangian based on hidden local symmetry and heavy-quark spin symmetry. The coupled Blankenbecler-Sugar equat…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Camille Saint‐Saëns, Pittsburgh Symphony Orchestra & Lorin Maazel:
🎵 Bacchanale (Samson et Dalila)
#CamilleSaintSaëns #PittsburghSymphonyOrchestra #LorinMaazel

Single-layer silicon metalens for broadband achromatic focusing and wide field of view
Jian Cao (C2N), Sarra Salhi (C2N), Jonathan Peltier (C2N, CEA-LETI), Jean-Ren\'e Coudevylle (C2N), Samson Edmond (C2N), C\'edric Villebasse (C2N), Etienne Herth (C2N), Laurent Vivien (C2N), Carlos Alonso Ramos (C2N), Daniele Melati (C2N)
https://

Single-layer silicon metalens for broadband achromatic focusing and wide field of view
Achieving simultaneous broadband achromatic focusing and a wide field of view remains a significant challenge for metalenses. In this work, we begin with a quadratic phase profile, enabling full field-of-view designs, and apply dispersion engineering to minimize variations of the focal length across wavelengths, thereby substantially reducing both longitudinal and transverse chromatic aberrations. This is accomplished using only the propagation phase in waveguide-like rectangular meta-atoms, wi…

What's in Your Transit? Towards Reliably Getting $5\times$ More Science from Exoplanet Transit Data
Samson J. Mercier, Julien de Wit, Benjamin V. Rackham
https://arxiv.org/abs/2510.00124

What's in Your Transit? Towards Reliably Getting $5\times$ More Science from Exoplanet Transit Data
Exoplanetary science heavily relies on transit depth ($D$) measurements. Yet, as instrumental precision increases, the uncertainty on $D$ appears to increasingly drift from expectations driven solely by photon-noise. Here we characterize this shortfall (the Transit-Depth Precision Problem, TDPP), by defining an amplification factor, $A$, quantifying the discrepancy between the measured transit-depth uncertainty and the measured baseline scatter on a same time bin size. While in theory $A$ shoul…

Studying the variability of the He triplet to understand the detection limits of evaporating exoplanet atmospheres
Samson J. Mercier, Xavier Dumusque, Vincent Bourrier, Khaled Al Moulla, Michael Cretignier, William Dethier, Gaspare Lo Curto, Pedro Figueira, Christophe Lovis, Francesco Pepe, Nuno C. Santos, St\'ephane Udry, Fran\c{c}ois Wildi, Romain Allart, Fr\'ed\'erique Baron, Fran\c{c}ois Bouchy, Andres Carmona, Marion Cointepas, Ren\'e Doyon, Yolanda Frensch, Nolan …

Studying the variability of the He triplet to understand the detection limits of evaporating exoplanet atmospheres
With more than a dozen significant detections, the helium triplet has emerged as a key tracer of evaporating exoplanet atmospheres. This near-infrared feature can be observed from the ground and holds great promise, especially with upcoming observations provided by new-generation instruments such as the Near Infrared Planet Searcher (NIRPS). However, as the helium triplet is also present in stellar spectra, careful removal of the average stellar contribution is necessary to accurately character…

🇺🇦 #NowPlaying on BBCRadio3's #InTune
arr. Kurtšg JS Bach & Pavel Kolesnikov and Samson Tsoy (piano duo):
🎵 Alle Menschen mussen sterben BWV.643 All people must die, all flesh passes away like grass
#arrKurtágJSBach #PavelKolesnikovandSamsonTsoypianoduo

🇺🇦 #NowPlaying on BBCRadio3's #InTune
arr. Kurtšg JS Bach & Pavel Kolesnikov and Samson Tsoy (piano duo):
🎵 Nun komm' der Heiden Heiland (Come Saviour of Nations), BWV.599
#arrKurtágJSBach #PavelKolesnikovandSamsonTsoypianoduo

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
George Frideric Handel, Dunedin Consort & John Butt:
🎵 Samson (Awake the trumpet's lofty sound)
#GeorgeFridericHandel #DunedinConsort #JohnButt

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
George Frideric Handel, Maureen Forrester, Zagreb Soloists & Antonio Janigro:
🎵 Air: 'Return, O God of hosts' from "Samson", Act 2
#GeorgeFridericHandel #ZagrebSoloists
https://open.spotify.com/track/6KhzVIOLACaEVHfbgIV1rq

🇺🇦 #NowPlaying on BBCRadio3's #InTune
Camille Saint‐Saëns, Les Siècles & François‐Xavier Roth:
🎵 Samson et Dalila Op.47 (Bacchanale)
#CamilleSaintSaëns #LesSiècles #FrançoisXavierRoth