Tootfinder

Consider: we came fairly close to extincting the various species crucial to this cycle *AND STILL COULD.*
The problem today isn’t the ongoing symbolic & subsistence whaling, it is that we have ravaged the ocean ecosystem in ways we don’t understand, such as noise pollution.
We really don’t understand enough about the subsystems of the oceans to be fucking with them in the ways we have been during the past century.

Sleep and Activity Patterns as Transdiagnostic Behavioral Biomarkers in Psychiatry: Initial Insights from the DeeP-DD study
Dylan Hamitouche, Tihare Zamorano, Youcef Barkat, Deven Parekh, Lena Palaniyappan, David Benrimoh
https://arxiv.org/abs/2507.22088

Sleep and Activity Patterns as Transdiagnostic Behavioral Biomarkers in Psychiatry: Initial Insights from the DeeP-DD study
Background: Symptom rating scales in psychiatry are limited by reliance on self-report, and lack of predictive power. Actigraphy, a passive wearable-based method for measuring sleep and physical activity, offers objective, high-resolution behavioral data that may better reflect symptom fluctuations, but most studies have focused on narrow diagnostic groups or fixed time windows, limiting clinical translation. Objective: To examine whether actigraphy-derived sleep and activity features correlate…

Yo no soy capaz de identificar una canción de Kidd Voodoo, pero el muchacho llenó 7 Movistar Arena y eso tiene mucho mérito. Hallo que no queda mšs que aplaudir. 👏🏻
https://www.latercera.com/culto/noticia/kidd-voodoo-recibe-…

DD-JSCC: Dynamic Deep Joint Source-Channel Coding for Semantic Communications
Avi Deb Raha, Apurba Adhikary, Mrityunjoy Gain, Yumin Park, Walid Saad, Choong Seon Hong
https://arxiv.org/abs/2507.20467

DD-JSCC: Dynamic Deep Joint Source-Channel Coding for Semantic Communications
Deep Joint Source-Channel Coding (Deep-JSCC) has emerged as a promising semantic communication approach for wireless image transmission by jointly optimizing source and channel coding using deep learning techniques. However, traditional Deep-JSCC architectures employ fixed encoder-decoder structures, limiting their adaptability to varying device capabilities, real-time performance optimization, power constraints and channel conditions. To address these limitations, we propose DD-JSCC: Dynamic D…

Flexible Intelligent Metasurfaces in High-Mobility MIMO Integrated Sensing and Communications
Kuranage Roche Rayan Ranasinghe, Jiancheng An, Iv\'an Alexander Morales Sandoval, Hyeon Seok Rou, Giuseppe Thadeu Freitas de Abreu, Chau Yuen, M\'erouane Debbah
https://arxiv.org/abs/2507.18793

Flexible Intelligent Metasurfaces in High-Mobility MIMO Integrated Sensing and Communications
We propose a novel doubly-dispersive (DD) multiple-input multiple-output (MIMO) channel model incorporating flexible intelligent metasurfaces (FIMs), which is suitable for integrated sensing and communications (ISAC) in high-mobility scenarios. We then discuss how the proposed FIM-parameterized DD (FPDD) channel model can be applied in a logical manner to ISAC waveforms that are known to perform well in DD environments, namely, orthogonal frequency division multiplexing (OFDM), orthogonal time …

Lattice study of scattering phase shifts for $DD^*$ and $BB^*$ systems using twisted boundary conditions: search for bound state formation
Masato Nagatsuka, Shoichi Sasaki
https://arxiv.org/abs/2507.20712

Lattice study of scattering phase shifts for $DD^*$ and $BB^*$ systems using twisted boundary conditions: search for bound state formation
We investigate the $S$- and $P$-wave phase shifts for the $DD^\ast$ and $BB^\ast$ scatterings using Lüscher's finite-size method under twisted boundary conditions to search for doubly charmed tetraquaks, $T_{cc}^+$, and doubly bottomed tetraquarks, $T_{bb}^-$ as the hadronic bound states. The $T_{cc}^+$ state was observed as a peak just bellow the $DD^*$ threshold by LHCb Collaboration, while the $T_{bb}^-$ state is a theoretically predicted tetraquark state having heavier quark flavors $bb\ba…

The structure of the double discriminant
Theresa C. Anderson, Adam Bertelli, Evan M. O'Dorney
https://arxiv.org/abs/2507.16138 https://

The structure of the double discriminant
For a polynomial $f(x) = \sum_{i=0}^n a_i x^i$, we study the double discriminant $DD_{n,k} = \operatorname{disc}_{a_k} \operatorname{disc}_x f(x)$, which appears in the proof of the van der Waerden--Bhargava theorem. We conjecture that $DD_{n,k}$ is the product of a square, a cube, and possibly a linear monomial and we prove this when $k=0$. We also investigate the (typically large and smooth) outlying integer constant in the factorization of $DD_{n,k}$.

Envelope Control Enabled Probabilistic Shaping for Peak Power Constrained IM DD Systems
Dongdong Zou, Wei Wang, Jiawen Yao, Zhongxing Tian, Zeyu Feng, Huan Huang, Fan Li, Gordon Ning Liu, Gangxiang Shen, Yi Cai
https://arxiv.org/abs/2507.18149

Envelope Control Enabled Probabilistic Shaping for Peak Power Constrained IM DD Systems
Probabilistic shaping (PS) has attracted significant attention in intensity-modulation and direct-detection (IM-DD) systems. However, due to the unique system model and inherent constraints, the effective application of the PS technique is still an open question in IM-DD systems, particularly in systems with memory effects. In this paper, a novel indirect PS scheme tailored for peak power constrained (PPC) IM-DD systems is proposed. The key idea lies in strategically controlling the signal enve…

On $NP \cap coNP$ proof complexity generators
Jan Krajicek
https://arxiv.org/abs/2506.20221 https://arxiv.org/pdf/2506.20221

On $NP \cap coNP$ proof complexity generators
Motivated by the theory of proof complexity generators we consider the following $Σ^p_2$ search problem $\mbox{DD}_P$ determined by a propositional proof system $P$: given a $P$-proof $π$ of a disjunction $\bigvee_i α_i$, no two $α_i$ having an atom in common, find $i$ such that $α_i \in \mbox{TAUT}$. We formulate a hypothesis (ST) that for some strong proof system $P$ the problem $\mbox{DD}_P$ is not solvable in the student-teacher model with a p-time student and a constant number of ro…

Properties and microscopic structures of dense stellar matter in RMF models
Jia-Xing Niu, Hao Sun, Cheng-Jun Xia, Toshiki Maruyama
https://arxiv.org/abs/2506.11492

Properties and microscopic structures of dense stellar matter in RMF models
Data tables on the equation of state (EOS) and microscopic structures for cold dense stellar matter with proton fractions $Y_p =0.01$-$0.65$ and baryon number densities $n_\text{b}=10^{-8}$-$2 \ \mathrm{fm}^{-3}$ are obtained adopting 13 different relativistic density functionals, i.e., NL3, PK1, PK1r, GM1, MTVTC, DD-LZ1, PKDD, DD-ME2, TW99, DD-MEX, DD-MEX1, DD-MEX2, and DD-MEY. The EOSs of dense stellar matter inside neutron stars with baryon number densities $n_\text{b}=7.6\times 10^{-11}$-$2…

🇺🇦 #NowPlaying on #BBC6Music's #6MusicsJukebox
Todd Rundgren:
🎵 I Saw The Light
#ToddRundgren
https://uncleted.bandcamp.com/track/todd-rundgren-i-saw-the-light-uncle-ted-club-mix
https://open.spotify.com/track/0qMc2Ap8lXotZvDzkG7218

Ah nice, SuUB Bremen (@…) offers their FOLIO scripts in a public repository.
This is the third german repository in my list (https://coll…

🌐 GÉANT sets a new benchmark for long-haul optical networking: 3,403 km of terrestrial transmission at 400G without transponders or regeneration!
This field trial, conducted in June on the GÉANT live production network using Cisco / Acacia 400G ULH QSFP-DD coherent pluggable optics, demonstrates the capabilities of new technologies to bridge extended distances without the need of traditional stand-alone DWDM transponders.
Read more:

Splitting Families, Reaping Families, and Families of Permutations Associated with Asymptotic Density
David Valderrama
https://arxiv.org/abs/2506.21059 htt…

Splitting Families, Reaping Families, and Families of Permutations Associated with Asymptotic Density
We investigate several relations between cardinal characteristics of the continuum related with the asymptotic density of the natural numbers and some known cardinal invariants. Specifically, we study the cardinals of the form $\mathfrak{s}_X$, $\mathfrak{r}_X$ and $\mathfrak{dd}_{X,Y}$ introduced in arXiv:2304.09698 and arXiv:2410.21102, answering some questions raised in these papers. In particular, we prove that $\mathfrak{s}_0=$ cov$(\mathcal{M})$ and $\mathfrak{r}_0=$ non$(\mathcal{M})$. W…

Relations between spin observables of the reactions $dd\to npd$ and $pd\to pd$ in impulse approximation
Yu. N. Uzikov
https://arxiv.org/abs/2506.17799 http…

Relations between spin observables of the reactions $dd\to npd$ and $pd\to pd$ in impulse approximation
It is shown that the vector and tensor analyzing powers $A_y$, $A_{yy}$ and also double spin correlation coefficients $C_{y,y}$, $C_{y y,y}$ of the reaction $dd\to n+p+d$ in impulse approximation are linearly connected to corresponding observables of the $pd$- elastic scattering. Obtained relations are necessary for motivation of the polarization experiments for the first phase of the SPD NICA project and for analysis of expected data.

Experimental End-to-End Optimization of Directly Modulated Laser-based IM/DD Transmission
Sergio Hernandez, Christophe Peucheret, Francesco Da Ros, Darko Zibar
https://arxiv.org/abs/2508.19910

Experimental End-to-End Optimization of Directly Modulated Laser-based IM/DD Transmission
Directly modulated lasers (DMLs) are an attractive technology for short-reach intensity modulation and direct detection communication systems. However, their complex nonlinear dynamics make the modeling and optimization of DML-based systems challenging. In this paper, we study the end-to-end optimization of DML-based systems based on a data-driven surrogate model trained on experimental data. The end-to-end optimization includes the pulse shaping and equalizer filters, the bias current and the …

Dynamical decoupling of interacting spins through group factorization
Colin Read, Eduardo Serrano-Ens\'astiga, John Martin
https://arxiv.org/abs/2506.15382

Dynamical decoupling of interacting spins through group factorization
Dynamical decoupling (DD) is a well-known open-loop protocol for suppressing unwanted interactions in a quantum system, thereby drastically extending the coherence time of useful quantum states. In the original framework of evolution symmetrization, a DD sequence was shown to enforce a symmetry on the unwanted Hamiltonian, thereby suppressing it if the symmetry was inaccessible. In this work, we show how symmetries already present in the undesired Hamiltonian can be harnessed to reduce the comp…

Encoding Optimization for Low-Complexity Spiking Neural Network Equalizers in IM/DD Systems
Eike-Manuel Edelmann, Alexander von Bank, Laurent Schmalen
https://arxiv.org/abs/2508.13783

Encoding Optimization for Low-Complexity Spiking Neural Network Equalizers in IM/DD Systems
Neural encoding parameters for spiking neural networks (SNNs) are typically set heuristically. We propose a reinforcement learning-based algorithm to optimize them. Applied to an SNN-based equalizer and demapper in an IM/DD system, the method improves performance while reducing computational load and network size.

Dept Q episode 1 (set in Scotland) opens with Axon-style bodycam footage, but with the on-screen date formatted as YYYY-DD-MM

A double-degenerate scenario with a merger to explosion delay time to explain type Ia supernova SN 2020aeuh
Noam Soker (Technion, Israel)
https://arxiv.org/abs/2507.16757

A double-degenerate scenario with a merger to explosion delay time to explain type Ia supernova SN 2020aeuh
I suggest the double-degenerate (DD) scenario with a merger-to-explosion delay (MED) time (the DD-MED scenario) of about 1-2 years to explain the rare properties of the recently analyzed type Ia supernova (SN Ia) SN 2020aeuh. The rare properties are the SN Ia ejecta interacting with a carbon-oxygen (CO)-rich circumstellar material (CSM) at approximately 50 days post-explosion. In this DD-MED scenario, two massive CO white dwarfs (WDs), masses of M1=1.1Mo and M2=1, merge to leave a rapidly rotat…

Recurrent Optical Spectrum Slicers as multi-{\lambda} processors for WDM optical equalization of IM/DD channels
Kostas Sozos, Francesco Da Ros, George Sarantoglou, Charis Mesaritakis, Adonis Bogris
https://arxiv.org/abs/2507.11659

Recurrent Optical Spectrum Slicers as multi-λ processors for WDM optical equalization of IM/DD channels
We report recurrent optical spectrum slicers as multi-wavelength optical processors in dispersion impaired IM/DD transmission systems with the use of programmable photonics. We demonstrate simultaneous equalization of three 64 Gb/s PAM-4 wavelengths after 75 km in the C-band and high tolerance to wavelength grid.

Beyond 200 Gb/s/lane: An Analytical Approach to Optimal Detection in Shaped IM-DD Optical Links with Relative Intensity Noise
Felipe Villenas, Kaiquan Wu, Yunus Can G\"ultekin, Jamal Riani, Alex Alvarado
https://arxiv.org/abs/2506.19684

Beyond 200 Gb/s/lane: An Analytical Approach to Optimal Detection in Shaped IM-DD Optical Links with Relative Intensity Noise
Next-generation intensity-modulation (IM) and direct-detection (DD) systems used in data centers are expected to operate at 400 Gb/s/lane and beyond. Such rates can be achieved by increasing the system bandwidth or the modulation format, which in turn requires maintaining or increasing the signal-to-noise ratio (SNR). Such SNR requirements can be achieved by increasing the transmitted optical power. This increase in optical power causes the emergence of relative intensity noise (RIN), a signal-…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Miroir d'Hypnos - Episode 74 - ⛈️ TrembleLance ⛈️ - YouTube
#ReveDeDragon

Premature Ignition: Why the Single-Degenerate Channel Leads to Type Iax and Not Type Ia Supernovae
Amir Michaelis, Hagai B. Perets
https://arxiv.org/abs/2507.16907 https://

Premature Ignition: Why the Single-Degenerate Channel Leads to Type Iax and Not Type Ia Supernovae
Type Ia supernovae (SNe Ia) are pivotal for the origins of the elements, the understanding of galactic chemical evolution, and serve as crucial cosmological distance indicators, yet their progenitor systems remain a central enigma in astrophysics. While both the growth of white dwarfs to near-Chandrasekhar mass and their explosion (the single-degenerate; SD) and mergers of two WDs leading to explosions (double-degenerate; DD) scenarios have been proposed, neither explains the observed diversity…

Enumerating several statistics of r-Colored Dyck paths with no dd-steps having the same colors
Yidong Sun, Jinyi Wang, Xinyu Wang
https://arxiv.org/abs/2506.08407

Enumerating several statistics of r-Colored Dyck paths with no dd-steps having the same colors
An $r$-colored Dyck path is a Dyck path with all $\mathbf{d}$-steps having one of $r$ colors in $[r]=\{1, 2, \dots, r\}$. In this paper, we consider several statistics on the set $\mathcal{A}_{n,0}^{(r)}$ of $r$-colored Dyck paths of length $2n$ with no two consecutive $\mathbf{d}$-steps having the same colors. Precisely, the paper studies the statistics ``number of points" at level $\ell$, ``number of $\mathbf{u}$-steps" at level $\ell+1$, ``number of peaks" at level $\ell+1$ and ``number of $…

Cross-Subject DD: A Cross-Subject Brain-Computer Interface Algorithm
Xiaoyuan Li, Xinru Xue, Bohan Zhang, Ye Sun, Shoushuo Xi, Gang Liu
https://arxiv.org/abs/2507.05268

Cross-Subject DD: A Cross-Subject Brain-Computer Interface Algorithm
Brain-computer interface (BCI) based on motor imagery (MI) enables direct control of external devices by decoding the electroencephalogram (EEG) generated in the brain during imagined movements. However, due to inter-individual variability in brain activity, existing BCI models exhibit poor adaptability across subjects, thereby limiting their generalizability and widespread application. To address this issue, this paper proposes a cross-subject BCI algorithm named Cross-Subject DD (CSDD), which…

DD-DeepONet: Domain decomposition and DeepONet for solving partial differential equations in three application scenarios
Bo Yang, Xingquan Li, Jie Zhao, Ying Jiang
https://arxiv.org/abs/2508.02717

DD-DeepONet: Domain decomposition and DeepONet for solving partial differential equations in three application scenarios
In certain practical engineering applications, there is an urgent need to perform repetitive solving of partial differential equations (PDEs) in a short period. This paper primarily considers three scenarios requiring extensive repetitive simulations. These three scenarios are categorized based on whether the geometry, boundary conditions(BCs), or parameters vary. We introduce the DD-DeepONet, a framework with strong scalability, whose core concept involves decomposing complex geometries into s…

»The start date and end date should be in the format mm/dd/yyyy hh:ss Z«
Und tschüss. ISO 8601 oder gar nicht.
Ich suchte nach etwas, das mir aus einem CSV mit vielen Terminen ein ICS macht, das ich in eine Kalender-Software importieren kann. Und nein, ich brauche keine Hinweise mehr, ich wurde bereits ausführlich und hinreichend fündig. #iso8601

Discrete Radar based on Modulo Arithmetic
Nishant Mehrotra, Sandesh Rao Mattu, Saif Khan Mohammed, Ronny Hadani, Robert Calderbank
https://arxiv.org/abs/2508.15671 https://

Discrete Radar based on Modulo Arithmetic
Zak-OTFS is modulation scheme where signals are formed in the delay-Doppler (DD) domain, converted to the time domain (DD) for transmission and reception, then returned to the DD domain for processing. We describe how to use the same architecture for radar sensing. The intended delay resolution is $\frac{1}{B}$ where $B$ is the radar bandwidth, and the intended Doppler resolution is $\frac{1}{T}$ where $T$ is the transmission time. We form a radar waveform in the DD domain, illuminate the scatt…

Non-Parametric Goodness-of-Fit Tests Using Tsallis Entropy Measures
Mehmet S{\i}dd{\i}k \c{C}ad{\i}rc{\i}
https://arxiv.org/abs/2506.14242 https://

Non-Parametric Goodness-of-Fit Tests Using Tsallis Entropy Measures
In this paper, we investigate new procedures for statistical testing based on Tsallis entropy, a parametric generalization of Shannon entropy. Focusing on multivariate generalized Gaussian and $q$-Gaussian distributions, we develop entropy-based goodness-of-fit tests based on maximum entropy formulations and nearest neighbour entropy estimators. Furthermore, we propose a novel iterative approach for estimating the shape parameters of the distributions, which is crucial for practical inference. …

Melting down a tetraquark: $D^{\ast}D^{(\ast)}$ interactions and $T_{cc}(3875)^ $ in a hot environment
Victor Montesinos, Gloria Montana, Miguel Albaladejo, Juan Nieves, Laura Tolos
https://arxiv.org/abs/2507.13319

Melting down a tetraquark: $D^{\ast}D^{(\ast)}$ interactions and $T_{cc}(3875)^+$ in a hot environment
We discuss the modification of the properties of the tetraquark-like $T_{cc}(3875)^+$ and its heavy quark spin partner, $T_{cc}(4016)^{*+}$ immersed in a hot bath of pions. We consider these exotic states as purely isoscalar $DD^\ast$ and $D^\ast D^\ast$ $S$-wave bound states, respectively. Finite temperature effects are incorporated through the $D$ and $D^\ast$ state-of-the-art thermal spectral functions calculated in [G. Montana et al., Phys. Rev. D, 102 (2020) 096020], using the imaginary-ti…

Charged Particle Scattering in Renormalizable Pionless Effective Field Theory at Next-to-Leading Order: The $pd$, $dd$, and $p^3\mathrm{He}$ Case
Mat\'u\v{s} Rojik, Martin Sch\"afer, Mirko Bagnarol, Nir Barnea
https://arxiv.org/abs/2507.16250

Charged Particle Scattering in Renormalizable Pionless Effective Field Theory at Next-to-Leading Order: The $pd$, $dd$, and $p^3\mathrm{He}$ Case
We formulate a renormalizable pionless effective field theory (Pionless EFT) with a non-perturbative treatment of the Coulomb interaction up to next-to-leading order (NLO) for few-nucleon systems. We extract scattering observables for charged clusters by employing two-, three-, and four-body contact interactions and using the stochastic variational method with a Coulomb-corrected harmonic oscillator trap. Our NLO results yield a $pd$ spin-quartet scattering length and effective range of $a_{pd}…

Integrated recurrent optical spectral slicer for equalization of 100-km C-band IM/DD transmission
I. Teofilovic, K. Sozos, H. Liu, S. Malhouitre, S. Garcia, G. Sarantoglou, P. Bienstman, B. Charbonnier, C. Mesaritakis, C. Vigliar, P. Petropoulos, A. Bogris, F. Da Ros
https://arxiv.org/abs/2507.11654

Integrated recurrent optical spectral slicer for equalization of 100-km C-band IM/DD transmission
A silicon-photonics recurrent spectral filter is designed, fabricated, and system tested to pro-vide optical pre-processing in a 32-GBd PAM-4 C-band transmission. Performance below FEC is re-ported for up to 100 km reach.

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
Meng Zhang, Maosheng Xiang, Yuan-Sen Ting, Anish Maynur Amarsi, Hua-Wei Zhang, Jianrong Shi, Haibo Yuan, Haining Li, Jiahui Wang, Yaqian Wu, Tianmin Wu, Lanya Mou, Hong-liang Yan, Jifeng Liu
https://

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
A deep understanding of our Galaxy desires detailed decomposition of its stellar populations via their chemical fingerprints. This requires precise stellar abundances of many elements for a large number of stars. Here we present an updated catalog of stellar labels derived from LAMOST low-resolution spectra in a physics-sensible and rigorous manner with DD-Payne, taking labels from high-resolution spectroscopy as training set. The catalog contains atmospheric parameters for 6.4 million stars re…

Decision-Dependent Distributionally Robust Optimization with Application to Dynamic Pricing
Chengrui Qu, Huiwen Jia, Pengcheng You
https://arxiv.org/abs/2508.06965 https://

Decision-Dependent Distributionally Robust Optimization with Application to Dynamic Pricing
We consider decision-making problems under decision-dependent uncertainty (DDU), where the distribution of uncertain parameters depends on the decision variables and is only observable through a finite offline dataset. To address this challenge, we formulate a decision-dependent distributionally robust optimization (DD-DRO) problem, and leverage multivariate interpolation techniques along with the Wasserstein metric to construct decision-dependent nominal distributions (thereby decision-depende…

Classification non supervis{\'e}es d'acquisitions hyperspectrales cod{\'e}es : quelles v{\'e}rit{\'e}s terrain ?
Trung-tin Dinh (IRAP, LAAS-PHOTO, UT3, LAAS), Herv\'e Carfantan (IRAP), Antoine Monmayrant (LAAS-PHOTO), Simon Lacroix (LAAS-RIS)
https://arxiv.org/abs/2508.03753…

Classification non supervis{é}es d'acquisitions hyperspectrales cod{é}es : quelles v{é}rit{é}s terrain ?
We propose an unsupervised classification method using a limited number of coded acquisitions from a DD-CASSI hyperspectral imager. Based on a simple model of intra-class spectral variability, this approach allow to identify classes and estimate reference spectra, despite data compression by a factor of ten. Here, we highlight the limitations of the ground truths commonly used to evaluate this type of method: lack of a clear definition of the notion of class, high intra-class variability, and e…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

An overlapping domain decomposition method for parametric Stokes and Stokes-Darcy problems via proper generalized decomposition
Marco Discacciati, Ben J. Evans, Matteo Giacomini
https://arxiv.org/abs/2507.06861

An overlapping domain decomposition method for parametric Stokes and Stokes-Darcy problems via proper generalized decomposition
A strategy to construct physics-based local surrogate models for parametric Stokes flows and coupled Stokes-Darcy systems is presented. The methodology relies on the proper generalized decomposition (PGD) method to reduce the dimensionality of the parametric flow fields and on an overlapping domain decomposition (DD) paradigm to reduce the number of globally coupled degrees of freedom in space. The DD-PGD approach provides a non-intrusive framework in which end-users only need access to the mat…

Differential Communication in Channels with Mobility and Delay Spread using Zak-OTFS
Sandesh Rao Mattu, Nishant Mehrotra, Robert Calderbank
https://arxiv.org/abs/2507.12593

Differential Communication in Channels with Mobility and Delay Spread using Zak-OTFS
Zak-transform based orthogonal time frequency space (Zak-OTFS) is a delay-Doppler (DD) domain modulation scheme in which the signal processing is carried out in the DD domain. The channel when viewed in the DD domain is predictable. However, even with Zak-OTFS, pilots need to be sent periodically, albeit at a lower rate. In this paper, we propose a differential communication scheme for Zak-OTFS systems that alleviates the need for periodic pilot transmission. Towards this, we analytically show …

Numerical Errors in Quantitative System Analysis With Decision Diagrams
Sebastiaan Brand, Arend-Jan Quist, Richard M. K. van Dijk, Alfons Laarman
https://arxiv.org/abs/2508.02673

Numerical Errors in Quantitative System Analysis With Decision Diagrams
Decision diagrams (DDs) are a powerful data structure that is used to tackle the state-space explosion problem, not only for discrete systems, but for probabilistic and quantum systems as well. While many of the DDs used in the probabilistic and quantum domains make use of floating-point numbers, this is not without challenges. Floating-point computations are subject to small rounding errors, which can affect both the correctness of the result and the effectiveness of the DD's compression. In t…

Early Emission from Double Detonation Type Ia Supernovae
Anthony L. Piro, Ehud Nakar
https://arxiv.org/abs/2507.14290 https://arxiv.o…

Early Emission from Double Detonation Type Ia Supernovae
A popular model for Type Ia supernovae (SNe Ia) is the detonation of a CO white dwarf (WD) that is triggered by the prior detonation of a thin surface layer of helium, known as a double detonation (DD). We explore the unique early electromagnetic signatures that are expected from collision of the CO detonation with the He detonation. The three features are (1) a shock breakout flash, (2) a stage of planar shock breakout cooling, and finally (3) shock cooling emission from the thermal energy rel…

This https://arxiv.org/abs/2506.02763 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
A deep understanding of our Galaxy desires detailed decomposition of its stellar populations via their chemical fingerprints. This requires precise stellar abundances of many elements for a large number of stars. Here we present an updated catalog of stellar labels derived from LAMOST low-resolution spectra in a physics-sensible and rigorous manner with DD-Payne, taking labels from high-resolution spectroscopy as training set. The catalog contains atmospheric parameters for 6.4 million stars re…

🇺🇦 #NowPlaying on #BBC6Music's #HuwStephens
DJ Zinc & Ms. Dynamite:
🎵 Wile Out (feat. Ms. Dynamite)
#DJZinc #MsDynamite
https://danieldalzochio.bandcamp.com/track/dj-zinc-wile-out-dj-dd-edit
https://open.spotify.com/track/7ehawMu8e3ipoY7stfct5M

Es gibt auch dieses Helferlein, um die #Synology zu "befreien"
https://github.com/007revad/Synology_HDD_db

Metasurfaces-Integrated Doubly-Dispersive MIMO: Channel Modeling and Optimization
Kuranage Roche Rayan Ranasinghe, Hyeon Seok Rou, Iv\'an Alexander Morales Sandoval, Giuseppe Thadeu Freitas de Abreu, George C. Alexandropoulos
https://arxiv.org/abs/2506.14985

Metasurfaces-Integrated Doubly-Dispersive MIMO: Channel Modeling and Optimization
The doubly-dispersive (DD) channel structure has played a pivotal role in wireless communications, particularly in high-mobility scenarios and integrated sensing and communications (ISAC), due to its ability to capture the key fading effects experienced by a transmitted signal as it propagates through a dynamic medium. However, extending the DD framework to multiple-input multiple-output (MIMO) systems, especially in environments artificially enhanced by reconfigurable intelligent surfaces (RIS…

Towards Machine Unlearning for Paralinguistic Speech Processing
Orchid Chetia Phukan, Girish, Mohd Mujtaba Akhtar, Shubham Singh, Swarup Ranjan Behera, Vandana Rajan, Muskaan Singh, Arun Balaji Buduru, Rajesh Sharma
https://arxiv.org/abs/2506.02230

Towards Machine Unlearning for Paralinguistic Speech Processing
In this work, we pioneer the study of Machine Unlearning (MU) for Paralinguistic Speech Processing (PSP). We focus on two key PSP tasks: Speech Emotion Recognition (SER) and Depression Detection (DD). To this end, we propose, SISA++, a novel extension to previous state-of-the-art (SOTA) MU method, SISA by merging models trained on different shards with weight-averaging. With such modifications, we show that SISA++ preserves performance more in comparison to SISA after unlearning in benchmark SE…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Replaced article(s) found for hep-lat. https://arxiv.org/list/hep-lat/new
[1/1]:
- Extending DD-$\alpha$AMG on heterogeneous machines
Gustavo Ramirez-Hidalgo, Lianhua He, Ke-Long Zhang

🇺🇦 #NowPlaying on #BBC6Music's #HuwStephens
DJ Zinc & Ms. Dynamite:
🎵 Wile Out (feat. Ms. Dynamite)
#DJZinc #MsDynamite
https://danieldalzochio.bandcamp.com/track/dj-zinc-wile-out-dj-dd-edit
https://open.spotify.com/track/7ehawMu8e3ipoY7stfct5M

Low-Complexity Receiver Design for Affine Filter Bank Modulation
Kuranage Roche Rayan Ranasinghe, Bruno S. Chang, Giuseppe Thadeu Freitas de Abreu
https://arxiv.org/abs/2506.17010

Low-Complexity Receiver Design for Affine Filter Bank Modulation
We propose a low-complexity receiver structure for the recently introduced Affine Filter Bank Modulation (AFBM) scheme, which is a novel waveform designed for integrated sensing and communications (ISAC) systems operating in doubly-dispersive (DD) channels. The proposed receiver structure is based on the Gaussian Belief Propagation (GaBP) framework, making use of only element-wise scalar operations to perform detection of the transmitted symbols. Simulation results demonstrate that AFBM in conj…

Reaction processes of muon-catalyzed fusion in the muonic molecule $dd\mu$ studied with the tractable $T$-matrix model
Qian Wu, Zhu-Fang Cui, Masayasu Kamimura
https://arxiv.org/abs/2508.12783

Reaction processes of muon-catalyzed fusion in the muonic molecule $ddμ$ studied with the tractable $T$-matrix model
Muon-catalyzed fusion has recently regained significant attention due to experimental and theoretical developments being performed. The present authors [Phys. Rev. C {\bf 109} 054625 (2024)] proposed the tractable $T$-matrix model based on the Lippmann-Schwinger equation to approximate the elaborate two- and three-body coupled-channel (CC) calculations [Kamimura, Kino, and Yamashita, Phys. Rev. C {\bf 107}, 034607 (2023)] for the nuclear reaction processes in the muonic molecule $dtμ$, $(dtμ)…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Modeling Optical Key Distribution over a Satellite-to-Ground Link Under Weak Atmospheric Turbulence
Artur Czerwinski, Miko{\l}aj Lasota, Marcin Jarzyna, Mateusz Kucharczyk, Micha{\l} Jachura, Konrad Banaszek
https://arxiv.org/abs/2508.05807

Modeling Optical Key Distribution over a Satellite-to-Ground Link Under Weak Atmospheric Turbulence
In this study, we analyze the secret key capacity of intensity modulation/direct detection optical key distribution (IM/DD OKD) for a free-space optical (FSO) link between a low-Earth orbit satellite and an optical ground station. Focusing on downlink communication, we account for atmospheric turbulence, which causes random variations in the transmittance of the FSO channel. We implement an atmospheric channel model that accounts for absorption and scattering, geometric losses, pointing errors,…

A New 5 bit/2D-symbol Modulation Format for Relative Intensity Noise-dominated IM-DD Systems
Felipe Villenas, Kaiquan Wu, Yunus Can G\"ultekin, Jamal Riani, Alex Alvarado
https://arxiv.org/abs/2506.01761

A New 5 bit/2D-symbol Modulation Format for Relative Intensity Noise-dominated IM-DD Systems
We propose a novel 5-bit/2D-symbol modulation format based on PAM-6 optimized for IM-DD systems dominated by relative intensity noise. The proposed modulation scheme improves SNR by 0.94 dB compared to conventional PAM-6 and achieves near-optimal BER performance.

Entropy-Based Methods to Address Sampling Bias in Archaeological Predictive Modeling
Mehmet S{\i}dd{\i}k \c{C}ad{\i}rc{\i}, Golnaz Shahtahmassebi
https://arxiv.org/abs/2508.02272

Entropy-Based Methods to Address Sampling Bias in Archaeological Predictive Modeling
Predictive modeling in archaeology is essential for the understanding of people's behavior in the past and for guiding heritage conservation. However, spatial sampling bias caused by uneven research effort can severely limit model reliability. This research describes a novel new framework that integrates entropy-based corrections to measure and minimize such biases in archaeological modeling of foresight. Leveraging the open access data of the Grand Staircase-Escalante National Monument, we emp…

PGD-based local surrogate models via overlapping domain decomposition: a computational comparison
Marco Discacciati, Ben J. Evans, Matteo Giacomini
https://arxiv.org/abs/2508.01313

PGD-based local surrogate models via overlapping domain decomposition: a computational comparison
An efficient strategy to construct physics-based local surrogate models for parametric linear elliptic problems is presented. The method relies on proper generalized decomposition (PGD) to reduce the dimensionality of the problem and on an overlapping domain decomposition (DD) strategy to decouple the spatial degrees of freedom. In the offline phase, the local surrogate model is computed in a non-intrusive way, exploiting the linearity of the operator and imposing arbitrary Dirichlet conditions…

Charge symmetry breaking effects of $\omega$-$\rho^0$ mixing in relativistic mean-field model
Yusuke Tanimura, Tomoya Naito, Hiroyuki Sagawa, Myung-Ki Cheoun
https://arxiv.org/abs/2506.06629

Charge symmetry breaking effects of $ω$-$ρ^0$ mixing in relativistic mean-field model
We present a relativistic mean-field model that incorporates charge symmetry breaking (CSB) of nuclear force via $ ω$-$ ρ^0 $ meson mixing, along with corrections to the electromagnetic interaction including the nucleon form factors, first-order vacuum polarization, and Coulomb exchange and pairing terms. The model parameters are refitted using the mass differences of $ T = 1/2 $ mirror nuclei and ground-state properties of magic nuclei, yielding DD-ME-CSB parameter set. The DD-ME-CSB paramet…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Delay-Doppler Domain Signal Processing Aided OFDM (DD-a-OFDM) for 6G and Beyond
Yiyan Ma, Bo Ai, Jinhong Yuan, Shuangyang Li, Qingqing Cheng, Zhenguo Shi, Weijie Yuan, Zhiqiang Wei, Akram Shafie, Guoyu Ma, Yunlong Lu, Mi Yang, Zhangdui Zhong
https://arxiv.org/abs/2508.04253

Delay-Doppler Domain Signal Processing Aided OFDM (DD-a-OFDM) for 6G and Beyond
High-mobility scenarios will be a critical part of 6G systems. Since the widely deployed orthogonal frequency division multiplexing (OFDM) waveform suffers from subcarrier orthogonality loss under severe Doppler spread, delay-Doppler domain multi-carrier (DDMC) modulation systems, such as orthogonal time frequency space (OTFS), have been extensively studied. While OTFS can exploit time-frequency (TF) domain channel diversity, it faces challenges including high receiver complexity and inflexible…

Replaced article(s) found for hep-lat. https://arxiv.org/list/hep-lat/new
[1/1]:
- Extending DD-$\alpha$AMG on heterogeneous machines
Gustavo Ramirez-Hidalgo, Lianhua He, Ke-Long Zhang

Photoabsorption Cross Sections studied within the axially deformed Relativistic Quasiparticle Finite Amplitude Framework
C. Chen (Frontiers Science Center for Rare isotope, Lanzhou University, Lanzhou, China, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China), Y. F. Niu (Frontiers Science Center for Rare isotope, Lanzhou University, Lanzhou, China, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China), R. Xu (China Nuclear Data Center,…

Photoabsorption Cross Sections studied within the axially deformed Relativistic Quasiparticle Finite Amplitude Framework
Photoabsorption cross sections for 235 stable nuclei, ranging from $^{40}$Ca to $^{209}$Bi, were investigated by the quasiparticle finite amplitude method (QFAM) based on the axially deformed relativistic Hartree-Bogoliubov (RHB) approach using relativistic point-coupling interaction DD-PC1, with extensions to odd-A nuclei. GDR parameters based on the standard Lorentzian (SLO) model were extracted from QFAM results and compared with those from experimental data recommended by IAEA. Good agreeme…

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

Exploring O-RAN Compression Techniques in Decentralized Distributed MIMO Systems: Reducing Fronthaul Load
Mostafa Rahmani, Junbo Zhao, Vida Ranjbar, Ahmed Al-Tahmeesschi, Hamed Ahmadi, Sofie Pollin, Alister G. Burr
https://arxiv.org/abs/2507.04997

Exploring O-RAN Compression Techniques in Decentralized Distributed MIMO Systems: Reducing Fronthaul Load
This paper explores the application of uplink fronthaul compression techniques within Open RAN (O-RAN) to mitigate fronthaul load in decentralized distributed MIMO (DD-MIMO) systems. With the ever-increasing demand for high data rates and system scalability, the fronthaul load becomes a critical bottleneck. Our method uses O-RAN compression techniques to efficiently compress the fronthaul signals. The goal is to greatly lower the fronthaul load while having little effect on the overall system p…

Zak-OTFS over CP-OFDM
Saif Khan Mohammed, Saurabh Prakash, Muhammad Ubadah, Imran Ali Khan, Ronny Hadani, Shlomo Rakib, Shachar Kons, Yoav Hebron, Ananthanarayanan Chockalingam, Robert Calderbank
https://arxiv.org/abs/2508.03906

Zak-OTFS over CP-OFDM
Zak-Orthogonal Time Frequency Space (Zak-OTFS) modulation has been shown to achieve significantly better performance compared to the standardized Cyclic-Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM), in high delay/Doppler spread scenarios envisaged in next generation communication systems. Zak-OTFS carriers are quasi-periodic pulses in the delay-Doppler (DD) domain, characterized by two parameters, (i) the pulse period along the delay axis (``delay period") (Doppler period is rela…

This https://arxiv.org/abs/2503.01604 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

The $α$-particle condensation in diluted $^{16}\text{O}$ at finite temperature
We investigate the effect of temperature on $α$-particle clustering in the diluted nucleus $^{16}\text{O}$ using the multi-constrained finite-temperature relativistic Hartree-Bogoliubov model with the DD-ME2 interaction. At a critical density the nucleus undergoes a Mott-like transition from a homogeneous to a localised configuration characterised by $α$-particle clustering and the emergence of a finite non-axial octupole deformation. We study the interplay between the onset of localisation u…

Zak-OFDM: Low Complexity Joint Equalization of OFDM Carriers in Doubly-Spread Channels
Saif Khan Mohammed, Sandesh Rao Mattu, Nishant Mehrotra, Venkatesh Khammammetti, Robert Calderbank
https://arxiv.org/abs/2506.23045

Zak-OFDM: Low Complexity Joint Equalization of OFDM Carriers in Doubly-Spread Channels
We communicate over wireless channels by first estimating and then equalizing the effective channel. In Zak-OTFS (orthogonal time frequency space) modulation the carrier waveform is a pulse in the delay-Doppler (DD) domain, formally a quasi-periodic localized function with specific periods along delay and Doppler. When the channel delay spread is less than the delay period, and the channel Doppler spread is less than the Doppler period, the response to a single Zak-OTFS carrier provides an imag…

SDR-Empowered Environment Sensing Design and Experimental Validation Using OTFS-ISAC Signals
Jun Wu, Yuye Shi, Weijie Yuan, Qingqing Cheng, Buyi Li, Xinyuan Wei
https://arxiv.org/abs/2507.01427

SDR-Empowered Environment Sensing Design and Experimental Validation Using OTFS-ISAC Signals
This paper investigates the system design and experimental validation of integrated sensing and communication (ISAC) for environmental sensing, which is expected to be a critical enabler for next-generation wireless networks. We advocate exploiting orthogonal time frequency space (OTFS) modulation for its inherent sparsity and stability in delay-Doppler (DD) domain channels, facilitating a low-overhead environment sensing design. Moreover, a comprehensive environmental sensing framework is deve…