Tootfinder

Russia’s war on Ukraine. 06.06.2024: https://benborges.xyz/2024/06/17/russias-war-on.html

Windows 11: Vorschau auf 24H2 wieder verfügbar – ohne Recall
Microsoft hatte die Verteilung der Update-Vorschau auf Windows 11 24H2 überraschend gestoppt, nun ist sie wieder verfügbar. Ihr fehlt Recall.

Kino – North Creek Trail (05-31-2024) (64kbps Recording)
@…
https://www.clongclongmoo.org/2024/06/15/ki…

Great explainer here: https://kids.frontiersin.org/articles/10.3389/frym.2024.1343809

We Are Not on Track: Greenhouse Gas Emissions Are Higher Than Ever!
Even though we have known about climate change for more than 30 years, humans are releasing higher amounts of greenhouse gases, like carbon dioxide, than ever before. Scientists have shown that stopping carbon dioxide emissions could prevent global warming from getting worse. The single biggest source of greenhouse gas emissions is burning fossil fuels for electricity or transportation. Technologies like solar and wind power, electric vehicles, and advanced batteries can replace fossil fuels an…

Florida State Scores Key Win Tuesday At 2024 College World Series Before Rain Washes Out Nightcap
#MLB #Baseball #BaseballAmerica

Amazing story, illustrates how things with regard to security can go very wrong, in this case with Microsoft.
https://www.propublica.org/article/microsoft-solarwinds-golden-saml-data-breach-russian-hackers

Whistleblower Says Microsoft Dismissed Warnings About a Security Flaw That Russians Later Used to Hack U.S. Government
Former employee says software giant dismissed his warnings about a critical flaw because it feared losing government business. Russian hackers later used the weakness to breach the National Nuclear Security Administration, among others.

Boeing CEO heads for Senate grilling as new whistleblower alleges company hid bad airplane parts
https://www.cnbc.com/2024/06/18/boeing-ceo-dave-calhoun-senate-hearing.html

🥱¼🥱
mrrrgnnn tootles 🖖 fedizens
☕☕☕

In which the Central Bureau for Astronomical Telegrams of the IAU dampens expectations for #comet C/2023 A3 (Tsuchinshan-ATLAS): http://www.cbat.eps.harvard.edu/iau/cbet/005400/CBET005404.txt - the peak is now predicted to be 2.2 mag. at best, perhaps with some forward-scatter enhancement but OTOH when the elongation is small. Even another NEOWISE-style show later in October looks pretty doubtful now ... but then again comets are nearly always good for surprises, and positive ones, too. Like NEOWISE delivered in 2020, so stay tuned.

Moin Moin Matjes in Bremen
Am Mittwoch, 19. Juni wird gegen Mittag das erste Fass Matjes auf dem Domshof versteigert zugunsten der Bremer Seemannsmission
#seemannsmission #Bremen

Moin Moin Matjes-Aktion in Bremen | Deutsche Seemannsmission
Die Matjes-Saison startet in diesem Jahr am Mittwoch, 19. Juni auf dem Bremer Wochenmarkt am Domshof. Los geht es von 8 bis 14 Uhr unter dem Motto "Moin Moin

Findet im Fediverse irgendwas zum Thema "Partei des Fortschritts" statt? Die haben mit wenigen hundert Mitgliedern immerhin einen EU-Sitz geholt, mehr als die Piraten. #PdF ist nicht sehr ergiebig seit dem Wahltag ;)

Farage says that the UK is fourth in size in exports. This is true if you use goods and services.
Services are growing as the proportion of Exports and growing in value, Trade is shrinking both in value and proportion since leaving the EU.
Services aren't controlled, Trade generally is, especially between ourselves and the EU.
#EU

Hé, m'n fiets staat ook in dit 3D model
https://www.imagem.nl/blog/dronefotografie-omzetten-naar-3d-in-planspace-simulator/

Warum heißt es Zentralrat der Atheisten in Deutschland und nicht Heidekraut e.V.

🔊 #NowPlaying on BBCRadio3's #RoundMidnight
Tomasz Stanko:
🎵 Song For Sarah
#TomaszStanko
https://open.spotify.com/track/6TBqMqnCMvqeHWYCrDGeAs

Russia’s war on Ukraine. 05.06.2024: https://benborges.xyz/2024/06/17/142808.html

#WordWeavers 6/18. If your book came with a small toy, what would it be?
Depends. Probably a wooden toy of some kind, if it's the book about an ancient oak tree, which I am editing.
Or, if it's the fantasy series, perhaps a marble gargoyle or stone dragon of some kind. Or one of the monsters I invented. One for each book in the series. I'll scare the children witless. 😄 …

Auto rast in Fußgänger - zwei junge Frauen tot
https://www.n-tv.de/panorama/Unfall-mit-SUV-in-Nuertingen-Auto-erfasst-Fussgaenger-zwei-junge-Frauen-tot-article25019193.html

Der «gewöhnliche Natternkopf» fühlt sich in diesem feuchten Frühling/Frühsommer sehr wohl auf unserer Dachterrasse im Office. 😉

Rückbau eines Kernkraftwerks im Video: Besuch im AKW
Wir haben das Kernkraftwerk in Grafenrheinfeld besucht und zeigen im Video, wie der Rückbau vorangeht.
https://www.he…

GOLAAAAAAAAAAAAAAAAAAZO DE STANCIUUUUUUUUUUU #ROU #ROUUKR #Euro2024

Ukraine is not just about Ukraine. It is about Russian dominance in Europe. As the US's influence is about to wane, Russia wants to take its place.
If Europe wants to remain free, it needs to stand up to Russian influence and aggression. Otherwise we will all be run by Russian puppets.
I hope the talks taking place in Blenheim Palace today lays the foundations for a totally European replacement for NATO. The US can no longer be relied on.

This https://arxiv.org/abs/2406.03636 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csPL_…

Synthetic Programming Elicitation and Repair for Text-to-Code in Very Low-Resource Programming Languages
Recent advances in large language models (LLMs) for code applications have demonstrated remarkable zero-shot fluency and instruction following on challenging code related tasks ranging from test case generation to self-repair. Unsurprisingly, however, models struggle to compose syntactically valid programs in programming languages unrepresented in pre-training, referred to as very low-resource Programming Languages (VLPLs). VLPLs appear in crucial settings including domain-specific languages fo…

Warum gibt's den #CloudLand2024 Zeitplan dieses Jahr nicht in der #Giggity App? 😓

BiKC: Keypose-Conditioned Consistency Policy for Bimanual Robotic Manipulation
Dongjie Yu, Hang Xu, Yizhou Chen, Yi Ren, Jia Pan
https://arxiv.org/abs/2406.10093

BiKC: Keypose-Conditioned Consistency Policy for Bimanual Robotic Manipulation
Bimanual manipulation tasks typically involve multiple stages which require efficient interactions between two arms, posing step-wise and stage-wise challenges for imitation learning systems. Specifically, failure and delay of one step will broadcast through time, hinder success and efficiency of each sub-stage task, and thereby overall task performance. Although recent works have made strides in addressing certain challenges, few approaches explicitly consider the multi-stage nature of bimanua…

[2024-06-18 Tue (UTC), 11 new articles found for math.NT Number Theory]

Yordan Alvarez: Breather Tuesday
#MLB #Baseball #Rotowire

What parents should know about secure gun storage after the Crumbleys' conviction - Raw Story
https://www.rawstory.com/what-parents-in-michigan-and-everywhere-should-know-about-secure-gun-storage-after-the/

What parents should know about secure gun storage after the Crumbleys' conviction
During the recent trial of James Crumbley, the father of the Oxford, Michigan school shooter, prosecutor Karen McDonald demonstrated the use of the cable lock that federal law mandates sellers provide with the 9 mm handgun used in the mass shooting. Installing the lock took about 10 seconds. Had Cru...

[2024-06-18 Tue (UTC), 4 new articles found for cs.MA Multiagent Systems]

On automorphism groups of polar codes
Jicheng Ma, Guiying Yan
https://arxiv.org/abs/2406.10047 https://arxiv.org/pdf/2406.10047

On automorphism groups of polar codes
Over the past years, Polar codes have arisen as a highly effective class of linear codes, equipped with a decoding algorithm of low computational complexity. This family of codes share a common algebraic formalism with the well-known Reed-Muller codes, which involves monomial evaluations. As useful algebraic codes, more specifically known as decreasing monomial codes, a lot of decoding work has been done on Reed-Muller codes based on their rich code automorphisms. In 2021, a new permutation gro…

Causal feedback strategies for controlled stochastic Volterra systems: a unified treatment
Jiayin Gong, Tianxiao Wang
https://arxiv.org/abs/2406.11009 http…

Causal feedback strategies for controlled stochastic Volterra systems: a unified treatment
This paper is concerned with a unified treatment of linear quadratic control problem for stochastic Volterra integral equations (SVIEs), motivated by the various approaches and scattered results in the existing literature. A novel class of optimal causal feedback strategy is introduced and characterized by means of a new Riccati system. To this end, a fundamental function space and an appropriate multiplicative rule among functions are defined for the first time. In contrast with the existing w…

Analysis of the Third Harmonic of a Vacuum Response in a Subcritical Laser Field
V. V. Dmitriev, S. A. Smolyansky, V. A. Tseryupa
https://arxiv.org/abs/2406.10257

Analysis of the Third Harmonic of a Vacuum Response in a Subcritical Laser Field
We investigate a nonlinear response of the physical vacuum by the example of the third harmonic in radiation of the electron-positron-photon plasma excited by a strong time dependent electric field at the focus spot of counterpropagating laser pulses. The investigation was developed within the framework of the Bogoliubov-Born-Green-Kirkwood-Yvon kinetic theory nonperturbatively describing vacuum creation of the quasiparticle electron-positron plasma (EPP) and different channels of its interacti…

Arithmetic of cuts in ordered abelian groups and of ideals over valuation rings
Franz-Viktor Kuhlmann
https://arxiv.org/abs/2406.10545 https://

Arithmetic of cuts in ordered abelian groups and of ideals over valuation rings
We investigate existence, uniqueness and maximality of solutions $T$ for equations $S_1+T=S_2$ and inequalities $S_1+T\subseteq S_2$ where $S_1$ and $S_2$ are final segments of ordered abelian groups. Since cuts are determined by their upper cut sets, which are final segments, this gives information about the corresponding equalities and inequalities for cuts. We apply our results to investigate existence, uniqueness and maximality of solutions $J$ for equations $I_1 J=I_2$ and inequalities $I_…

Pseudogap with Fermi arcs and Fermi pockets in half-filled twisted transition metal dichalcogenides
Yong-Yue Zong, Zhao-Long Gu, Jian-Xin Li
https://arxiv.org/abs/2406.11374 https://arxiv.org/pdf/2406.11374
arXiv:2406.11374v1 Announce Type: new
Abstract: Twisted transition metal dichalcogenides are a new platform for realizing strongly correlated physics with high tunability. Recent transport experiments have reported the realization of a Mott insulator, its bandwidth-driven evolution to a metal, and the strange metal behavior in proximity to the transition via the tuning of a displacement field in twisted $\mathrm{WSe_2}$($\mathrm{tWSe_2}$) fixed at half filling. However, the nature of the correlated states and the related Mott physics involved in the whole process remain to be determined. Here, we unveil theoretically the evolution of the ground state of the half-filled $\boldsymbol{\mathrm{moir\acute{e}}}$ Hubbard model as applied to $\mathrm{tWSe_2}$, transiting from a pseudogap state with Fermi arcs to a 120$^\circ$ Ne$\boldsymbol{\acute{\mathrm{e}}}$l ordered Mott insulator, then to another pseudogap state with Fermi pockets, and eventually to a Fermi liquid via a Lifshitz transition. The pseudogap phases are definitively identified by the vanishing of quasiparticle weights over an extended region of the free Fermi surface, with the remaining parts forming disconnected Fermi arcs or pockets that contain well-defined quasiparticles. The loss of quasiparticle weights in the pseudogap phases indicates the breakdown of Landau's Fermi liquid theory. We demonstrate that the emergence of the Fermi arcs/pockets results from the electronic structure reconstruction driven by strong electron correlations, marked by the existence of Luttinger surface enclosed by the zeros of single-particle Green's function. This work reveals the fundamental aspects of the Mottness in $\boldsymbol{\mathrm{moir\acute{e}}}$ systems and will stimulate the advance of the direct probes of the Fermi surface and quasiparticles beyond transports, such as angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling microscopy (STM) experiments.

All-electron $BSE@GW$ method with Numeric Atom-Centered Orbitals for Extended Systems
Ruiyi Zhou, Yi Yao, Volker Blum, Xinguo Ren, Yosuke Kanai
https://arxiv.org/abs/2406.11122 https://arxiv.org/pdf/2406.11122
arXiv:2406.11122v1 Announce Type: new
Abstract: Green's function theory has emerged as a powerful many-body approach not only in condensed matter physics but also in quantum chemistry in recent years. We have developed a new all-electron implementation of the BSE@GW formalism using numeric atom-centered orbital basis sets (Liu et al., J. Chem. Phys. 152, 044105 (2020)). We present our recent developments in implementing this formalism for extended systems with periodic boundary conditions. We discuss its numerical implementation and various convergence tests pertaining to numerical atom-centered orbitals, auxiliary basis sets for the resolution-of-identity formalism, and Brillouin zone sampling. Proof-of-principle examples are presented to compare with other formalisms, illustrating the new all-electron BSE@GW method for extended systems.

Enriched aspects of calculus of relations and $2$-permutability
Maria Manuel Clementino, Diana Rodelo
https://arxiv.org/abs/2406.10624 https://arxiv.org/pdf/2406.10624
arXiv:2406.10624v1 Announce Type: new
Abstract: The aim of this work is to further develop the calculus of (internal) relations for a regular Ord-category C. To capture the enriched features of a regular Ord-category and obtain a good calculus, the relations we work with are precisely the ideals in C. We then focus on an enriched version of the 1-dimensional algebraic 2-permutable (also called Mal'tsev) property and its well-known equivalent characterisations expressed through properties on ordinary relations. We introduce the notion of Ord-Mal'tsev category and show that these may be characterised through enriched versions of the above mentioned properties adapted to ideals. Any Ord-enrichment of a 1-dimensional Mal'tsev category is necessarily an Ord-Mal'tsev category. We also give some examples of categories which are not Mal'tsev categories, but are Ord-Mal'tsev categories.

[2024-06-18 Tue (UTC), 3 new articles found for q-bio.QM Quantitative Methods]

Revisiting the large-scale CMB anomalies: The impact of the SZ signal from the Local Universe
Gabriel Jung, Nabila Aghanim, Jenny Sorce, Benjamin Seidel, Klaus Dolag, Marian Douspis
https://arxiv.org/abs/2406.11543

Revisiting the large-scale CMB anomalies: The impact of the SZ signal from the Local Universe
The full sky measurements of the Cosmic Microwave Background (CMB) temperature anisotropies by $\textit{WMAP}$ and $\textit{Planck}$ have highlighted the presence of several unexpected isotropy-breaking features on the largest angular scales. In this work, we investigate the impact of the local large-scale structure on these anomalies through the thermal and kinetic Sunyaev-Zeldovich effects. We use a constrained hydrodynamical simulation that reproduces the local Universe in a box of $500\,h…

Indefinitely Flat Circular Velocities and the Baryonic Tully-Fisher Relation from Weak Lensing
Tobias Mistele, Stacy McGaugh, Federico Lelli, James Schombert, Pengfei Li
https://arxiv.org/abs/2406.09685

Indefinitely Flat Circular Velocities and the Baryonic Tully-Fisher Relation from Weak Lensing
We use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kpc, greatly extending the classic result from 21 cm observations. Indeed, there is no clear hint of a decline out to 1 Mpc, well beyond the expected virial radii of dark matter halos. Binning the data by mass reveals a correlation with the flat circular speed that closely agrees with the Bary…

Impact of repetitive ELM transients on ITER monoblock top surfaces
K. Paschalidis, S. Ratynskaia, P. Tolias, R. A. Pitts
https://arxiv.org/abs/2406.10435 h…

Impact of repetitive ELM transients on ITER monoblock top surfaces
Owing to the high stored energy of ITER plasmas, the heat pulses due to uncontrolled Type I edge localized modes (ELMs) can be sufficient to melt the top surface of several poloidal rows of tungsten monoblocks in the divertor strike point regions. Coupled with the melt motion associated with tungsten in the strong tokamak magnetic fields, the resulting surface damage after even a comparatively small number of such repetitive transients may have a significant impact on long-term stationary power…

[2024-06-18 Tue (UTC), no new articles found for q-bio.NC Neurons and Cognition]

This https://arxiv.org/abs/2401.00929 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

GenH2R: Learning Generalizable Human-to-Robot Handover via Scalable Simulation, Demonstration, and Imitation
This paper presents GenH2R, a framework for learning generalizable vision-based human-to-robot (H2R) handover skills. The goal is to equip robots with the ability to reliably receive objects with unseen geometry handed over by humans in various complex trajectories. We acquire such generalizability by learning H2R handover at scale with a comprehensive solution including procedural simulation assets creation, automated demonstration generation, and effective imitation learning. We leverage larg…

Endogenous Identity in a Social Network
Christian Ghiglino, Nicole Tabasso
https://arxiv.org/abs/2406.10972 https://arxiv.org/pdf/240…

Complementarity between Brillouin signature and Scholte wave for controlled elasticity in fibrillated collagen medium for culture cell
Ahmed Hamraoui, Oc\'eane S\'en\'epart, Laurent Belliard
https://arxiv.org/abs/2406.10585

Complementarity between Brillouin signature and Scholte wave for controlled elasticity in fibrillated collagen medium for culture cell
Modulating extracellular matrix (ECM) elasticity with fibrillar collagen offers great potential for regenerative medicine, drug discovery, and disease modeling by replicating invivo mechanical signals. This enhances understanding of cellular responses and fosters therapeutic innovation. However, precise ECM elasticity measurements are still lacking. This study couples time-resolved Brillouin spectroscopy and pulsed laser-induced Scholtes wave generation. We measure how collagen fibrillation aff…

Approximation measures for shifted logarithms of algebraic numbers via effective Poincare-Perron
Noriko Hirata-Kohno, Ryuji Muroi, Yusuke Washio
https://arxiv.org/abs/2406.10820 <…

Approximation measures for shifted logarithms of algebraic numbers via effective Poincare-Perron
In this article, we show new effective approximation measures for the shifted logarithm of algebraic numbers which belong to a number field of arbitrary degree. Our measures refine previous ones including those for usual logarithms. We adapt Pade approximants constructed by M. Kawashima and A. Poels in the rational case. Our key ingredient relies on the Poincare-Perron theorem which gives us asymptotic estimates at every archimedean place of the number field, that we apply to decide whether the…

Analysis of the Third Harmonic of a Vacuum Response in a Subcritical Laser Field
V. V. Dmitriev, S. A. Smolyansky, V. A. Tseryupa
https://arxiv.org/abs/2406.10257

Analysis of the Third Harmonic of a Vacuum Response in a Subcritical Laser Field
We investigate a nonlinear response of the physical vacuum by the example of the third harmonic in radiation of the electron-positron-photon plasma excited by a strong time dependent electric field at the focus spot of counterpropagating laser pulses. The investigation was developed within the framework of the Bogoliubov-Born-Green-Kirkwood-Yvon kinetic theory nonperturbatively describing vacuum creation of the quasiparticle electron-positron plasma (EPP) and different channels of its interacti…

Decentralized Collaborative Pricing and Shunting for Multiple EV Charging Stations Based on Multi-Agent Reinforcement Learning
Tianhao Bu, Hang Li, Guojie Li
https://arxiv.org/abs/2406.11496 https://arxiv.org/pdf/2406.11496
arXiv:2406.11496v1 Announce Type: new
Abstract: The extraordinary electric vehicle (EV) popularization in the recent years has facilitated research studies in alleviating EV energy charging demand. Previous studies primarily focused on the optimizations over charging stations (CS) profit and EV users cost savings through charge/discharge scheduling events. In this work, the random behaviors of EVs are considered, with EV users preferences over multi-CS characteristics modelled to imitate the potential CS selection disequilibrium. A price scheduling strategy under decentralized collaborative framework is proposed to achieve EV shunting in a multi-CS environment, while minimizing the charging cost through multi agent reinforcement learning. The proposed problem is formulated as a Markov Decision Process (MDP) with uncertain transition probability.

Pseudogap with Fermi arcs and Fermi pockets in half-filled twisted transition metal dichalcogenides
Yong-Yue Zong, Zhao-Long Gu, Jian-Xin Li
https://arxiv.org/abs/2406.11374 https://arxiv.org/pdf/2406.11374
arXiv:2406.11374v1 Announce Type: new
Abstract: Twisted transition metal dichalcogenides are a new platform for realizing strongly correlated physics with high tunability. Recent transport experiments have reported the realization of a Mott insulator, its bandwidth-driven evolution to a metal, and the strange metal behavior in proximity to the transition via the tuning of a displacement field in twisted $\mathrm{WSe_2}$($\mathrm{tWSe_2}$) fixed at half filling. However, the nature of the correlated states and the related Mott physics involved in the whole process remain to be determined. Here, we unveil theoretically the evolution of the ground state of the half-filled $\boldsymbol{\mathrm{moir\acute{e}}}$ Hubbard model as applied to $\mathrm{tWSe_2}$, transiting from a pseudogap state with Fermi arcs to a 120$^\circ$ Ne$\boldsymbol{\acute{\mathrm{e}}}$l ordered Mott insulator, then to another pseudogap state with Fermi pockets, and eventually to a Fermi liquid via a Lifshitz transition. The pseudogap phases are definitively identified by the vanishing of quasiparticle weights over an extended region of the free Fermi surface, with the remaining parts forming disconnected Fermi arcs or pockets that contain well-defined quasiparticles. The loss of quasiparticle weights in the pseudogap phases indicates the breakdown of Landau's Fermi liquid theory. We demonstrate that the emergence of the Fermi arcs/pockets results from the electronic structure reconstruction driven by strong electron correlations, marked by the existence of Luttinger surface enclosed by the zeros of single-particle Green's function. This work reveals the fundamental aspects of the Mottness in $\boldsymbol{\mathrm{moir\acute{e}}}$ systems and will stimulate the advance of the direct probes of the Fermi surface and quasiparticles beyond transports, such as angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling microscopy (STM) experiments.

Microstructure of polydisperse colloidal gels
Benjamin F. Lonial, Eric R. Weeks
https://arxiv.org/abs/2406.10321 https://arxiv.org/pd…

Microstructure of polydisperse colloidal gels
We use confocal microscopy to image colloidal gels formed from highly polydisperse particles. We suspend our polydisperse particles in a density matched solvent, and let the particles spontaneously aggregate through the van der Waals force. The particle size distribution $P(R)$ is roughly log-normal, with the largest particles more than 15 times the size of the smallest particles. The pairing of nearest neighbor particles is consistent with a null hypothesis that pairings are made randomly, tha…

🔊 #NowPlaying on #BBC6Music's #6MusicArtistInResidence
Free:
🎵 Lying In The Sunshine
#Free
https://open.spotify.com/track/7iA3xHruObBBOiqYRUVKTD

🔊 #NowPlaying on KEXP's #VarietyMix
David Versace:
🎵 With Time
#DavidVersace
#Bandcamp

Increasing certainty in systems biology models using Bayesian multimodel inference
Nathaniel Linden-Santangeli, Jin Zhang, Boris Kramer, Padmini Rangamani
https://arxiv.org/abs/2406.11178

Increasing certainty in systems biology models using Bayesian multimodel inference
Mathematical models are indispensable to the system biology toolkit for studying the structure and behavior of intracellular signaling networks. A common approach to modeling is to develop a system of equations that encode the known biology using approximations and simplifying assumptions. As a result, the same signaling pathway can be represented by multiple models, each with its set of underlying assumptions, which opens up challenges for model selection and decreases certainty in model predi…

[2024-06-17 Mon (UTC), 1 new article found for q-fin.RM Risk Management]

Orthogonal involutions over fields with I^3=0
Karim Johannes Becher, Fatma Kader Bing\"ol
https://arxiv.org/abs/2406.10609 https://

Orthogonal involutions over fields with I^3=0
We provide upper bounds on the u-invariant for skew-hermitian forms over a quaternion algebra with its canonical involution in terms of the u-invariant of the base field F of characteristic different from 2 when I^3F = 0.

[2024-06-17 Mon (UTC), no new articles found for nlin.CD Chaotic Dynamics]

In Situ Dynamic Four-Dimensional Strong Field Ionization Tomography
Noam Shlomo, Eugene Frumker
https://arxiv.org/abs/2406.10233 https://

Western Europe needs to be prepared to replace NATO with a European Treaty Organisation. It's looking increasingly likely Trump will win the presidency. Europe must be able to defend itself from Russian aggression without the US's help.
Western Europe spends more on defence than Russia. We have coordinated militarily as part of NATO for over 50 years. This is achievable.
Ukraine is a signal of how Russia sees its future in Europe. Farage would like nothing more than to be the UK's Lukashenko.

KAOS: Large Model Multi-Agent Operating System
Zhao Zhuo, Rongzhen Li, Kai Liu, Huhai Zou, KaiMao Li, Jie Yu, Tianhao Sun, Qingbo Wu
https://arxiv.org/abs/2406.11342 https://arxiv.org/pdf/2406.11342
arXiv:2406.11342v1 Announce Type: new
Abstract: The intelligent interaction model based on large models reduces the differences in user experience across various system platforms but faces challenges in multi-agent collaboration and resource sharing. To demonstrate a uniform user experience across different foundational software platforms and address resource coordination management challenges, this paper proposes a multi-agent operating system based on the open-source Kylin. The research method involves empowering agents with large models to serve applications. First, by introducing management role agents and vertical multi-agent collaboration to construct or replace typical application software. Second, by studying system-level shared resource scheduling strategies to enhance user experience and optimize resource utilization. And finally, by validating the efficiency and superiority of the large model multi-agent operating system through real applications and scoring intelligence. The feasibility of this system is demonstrated, providing a new perspective for the development of multi-agent operating systems. Experimental results show significant advantages of multi-agent collaboration in various application scenarios.

Triaxial shape of the one-proton emitter $^{149}$Lu
Qi Lu, Kai-Yuan Zhang, Shi-Sheng Zhang
https://arxiv.org/abs/2406.09803 https://a…

Triaxial shape of the one-proton emitter $^{149}$Lu
We revisit the proton emitter $^{149}$Lu utilizing the recently developed triaxial relativistic Hartree-Bogoliubov theory in continuum (TRHBc). By incorporating the microscopic nuclear structure properties from the TRHBc theory into the WKB approximation, we successfully reproduce the measured proton-emission half-life of $^{149}$Lu within experimental uncertainties. A triaxial ground state characterized by ($β=0.17,γ=31^\circ$) has been clarified for $^{149}$Lu. The inclusion of triaxiality …

[2024-06-17 Mon (UTC), 13 new articles found for astro-ph.GA Astrophysics of Galaxies]

[2024-06-18 Tue (UTC), no new articles found for q-bio.NC Neurons and Cognition]

Some remarks on the order structures of multi-polylogarithms
Ken Kamano
https://arxiv.org/abs/2406.10604 https://arxiv.org/pdf/2406.1…

Some remarks on the order structures of multi-polylogarithms
We consider multi-polylogarithm functions which are slightly different from the ordinary ones. These functions have two integral representations and an order structure similar to those of multiple zeta star values. We also give a necessary and sufficient condition for the set of values of our multi-polylogarithm functions to be a dense set.

Improved absolute abundance estimates from spatial count data with simulation and microfossil case studies
Chris Mays, Marcos Amores, Anthony Mays
https://arxiv.org/abs/2406.10921

Improved absolute abundance estimates from spatial count data with simulation and microfossil case studies
Many fundamental parameters of biological systems -- eg. productivity, population sizes and biomass -- are most effectively expressed in absolute terms. In contrast to proportional data (eg. percentages), absolute values provide standardised metrics on the functioning of biological entities (eg. organisism, species, ecosystems). These are particularly valuable when comparing assemblages across time and space. Since it is almost always impractical to count entire populations, estimates of popula…

Reconfigurable Intelligent Surface Assisted VEC Based on Multi-Agent Reinforcement Learning
Kangwei Qi, Qiong Wu, Pingyi Fan, Nan Cheng, Qiang Fan, Jiangzhou Wang
https://arxiv.org/abs/2406.11318 https://arxiv.org/pdf/2406.11318
arXiv:2406.11318v1 Announce Type: new
Abstract: Vehicular edge computing (VEC) is an emerging technology that enables vehicles to perform high-intensity tasks by executing tasks locally or offloading them to nearby edge devices. However, obstacles such as buildings may degrade the communications and incur communication interruptions, and thus the vehicle may not meet the requirement for task offloading. Reconfigurable intelligent surfaces (RIS) is introduced to support vehicle communication and provide an alternative communication path. The system performance can be improved by flexibly adjusting the phase-shift of the RIS. For RIS-assisted VEC system where tasks arrive randomly, we design a control scheme that considers offloading power, local power allocation and phase-shift optimization. To solve this non-convex problem, we propose a new deep reinforcement learning (DRL) framework that employs modified multi-agent deep deterministic policy gradient (MADDPG) approach to optimize the power allocation for vehicle users (VUs) and block coordinate descent (BCD) algorithm to optimize the phase-shift of the RIS. Simulation results show that our proposed scheme outperforms the centralized deep deterministic policy gradient (DDPG) scheme and random scheme.

Extending class group action attacks via sesquilinear pairings
Joseph Macula, Katherine E. Stange
https://arxiv.org/abs/2406.10440 https://

Extending class group action attacks via sesquilinear pairings
We introduce a new tool for the study of isogeny-based cryptography, namely pairings which are sesquilinear (conjugate linear) with respect to the $\mathcal{O}$-module structure of an elliptic curve with CM by an imaginary quadratic order $\mathcal{O}$. We use these pairings to study the security of problems based on the class group action on collections of oriented ordinary or supersingular elliptic curves. This extends work of both (Castryck, Houben, Merz, Mula, Buuren, Vercauteren, 2023) and…

BEACON: Benchmark for Comprehensive RNA Tasks and Language Models
Yuchen Ren, Zhiyuan Chen, Lifeng Qiao, Hongtai Jing, Yuchen Cai, Sheng Xu, Peng Ye, Xinzhu Ma, Siqi Sun, Hongliang Yan, Dong Yuan, Wanli Ouyang, Xihui Liu
https://arxiv.org/abs/2406.10391

BEACON: Benchmark for Comprehensive RNA Tasks and Language Models
RNA plays a pivotal role in translating genetic instructions into functional outcomes, underscoring its importance in biological processes and disease mechanisms. Despite the emergence of numerous deep learning approaches for RNA, particularly universal RNA language models, there remains a significant lack of standardized benchmarks to assess the effectiveness of these methods. In this study, we introduce the first comprehensive RNA benchmark BEACON (\textbf{BE}nchm\textbf{A}rk for \textbf{CO}m…

Tree Search for Simultaneous Move Games via Equilibrium Approximation
Ryan Yu, Alex Olshevsky, Peter Chin
https://arxiv.org/abs/2406.10411 https://arxiv.org/pdf/2406.10411
arXiv:2406.10411v1 Announce Type: new
Abstract: Neural network supported tree-search has shown strong results in a variety of perfect information multi-agent tasks. However, the performance of these methods on partial information games has generally been below competing approaches. Here we study the class of simultaneous-move games, which are a subclass of partial information games which are most similar to perfect information games: both agents know the game state with the exception of the opponent's move, which is revealed only after each agent makes its own move. Simultaneous move games include popular benchmarks such as Google Research Football and Starcraft.
In this study we answer the question: can we take tree search algorithms trained through self-play from perfect information settings and adapt them to simultaneous move games without significant loss of performance? We answer this question by deriving a practical method that attempts to approximate a coarse correlated equilibrium as a subroutine within a tree search. Our algorithm works on cooperative, competitive, and mixed tasks. Our results are better than the current best MARL algorithms on a wide range of accepted baseline environments.

Multivariate Predictors of LyC Escape II: Predicting LyC Escape Fractions for High-Redshift Galaxies
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, G\"oran \"Ostlin, Alberto Saldana-Lopez, Claudia Scarlata, G\'abor Worseck, Xinfeng Xu

Multivariate Predictors of LyC Escape II: Predicting LyC Escape Fractions for High-Redshift Galaxies
JWST is uncovering the properties of ever increasing numbers of galaxies at z>6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce Lyman continuum (LyC) photons and what fraction (fesc) of these photons escape into the intergalactic medium. By applying the Cox proportional hazards model, a survival analysis technique, to the Low-redshift Lyman Continuum Survey (LzLCS), we develop new, empiri…

On the Field Isomorphism Problem for the Family of Simplest Quartic Fields
David L. Pincus, Lawrence C. Washington
https://arxiv.org/abs/2406.10414 https:/…

On the Field Isomorphism Problem for the Family of Simplest Quartic Fields
Deciding whether or not two polynomials have isomoprhic splitting fields over the rationals is the Field Isomorphism Problem. We consider polynomials of the form $f_n(x) = x^4-nx^3-6x^2+nx+1$ with $n \neq 3$ a positive integer and we let $K_n$ denote the splitting field of $f_n(x)$; a `simplest quartic field'. Our main theorem states that under certain hypotheses there can be at most one positive integer $m \neq n$ such that $K_m=K_n$. The proof relies on the existence of squares in recurrent s…

🔊 #NowPlaying on BBCRadio3's #Breakfast
Luigi Ricci, Matilda Lloyd, William Foster, Rumon Gamba & Britten Sinfonia:
🎵 La festa di Piedigrotta, Act 3: Tarantella Napoletana
#LuigiRicci #MatildaLloyd #WilliamFoster
https://open.spotify.com/track/0qXIbQTzREvponm1tEfPUc

My morning [PODCAST] listen: #AngryPlanet “The Hard Limits of Cyber War and Subversion Operations” with Lennart Maschmeyer
https://pca.st/episode/c479fb4d-dc37-4011-ae79-f6a269456c30<…

The Hard Limits of Cyber War and Subversion Operations - Angry Planet
Conversations about conflict on an angry planet. Created, produced, and hosted by Matthew Gault and Jason Fields781951Support this show http://supporter.acast.com/warcollege. Hosted on Acast. See acast.com/privacy for more information.

Solvability of $\binom{2k}{k} = \binom{2a}{a} \binom{x 2b}{b}$
Meaghan Allen
https://arxiv.org/abs/2406.10404 https://arxiv.org/pdf/2…

Solvability of $\binom{2k}{k} = \binom{2a}{a} \binom{x+2b}{b}$
Suppose $k,x,$ and $b$ are positive integers, and $a$ is a nonnegative integer such that $k=a+b$. In this paper, we will prove $\binom{2k}{k} = \binom{2a}{a} \binom{x+2b}{b}$ if and only if $x=a=1$. We do this by looking at different cases depending on the values of $x$ and $k$. We use varying techniques to prove the cases, such as direct proof, verification through Maple software, and a proof technique found in Moser's paper. Previous results from Hanson, Stănică, Shanta, Shorey and Nair are…

via France / ANSSI
"L’#ANSSI publie ses recommandations pour l’hébergement des systèmes d’information dans le #cloud. ☁
Un outil d’aide Š la décision pour les organisations envisageant un projet de migration de leur système d’information dans le cloud.

Multivariate Predictors of LyC Escape I: A Survival Analysis of the Low-redshift Lyman Continuum Survey
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, G\"oran \"Ostlin, Alberto Saldana-Lopez, Claudia Scarlata, G\'abor Worseck, Xinfeng Xu

Multivariate Predictors of LyC Escape I: A Survival Analysis of the Low-redshift Lyman Continuum Survey
To understand how galaxies reionized the universe, we must determine how the escape fraction of Lyman Continuum (LyC) photons (fesc) depends on galaxy properties. Using the z~0.3 Low-redshift Lyman Continuum Survey (LzLCS), we develop and analyze new multivariate predictors of fesc. These predictions use the Cox proportional hazards model, a survival analysis technique that incorporates both detections and upper limits. Our best model predicts the LzLCS fesc detections with a root-mean-square (…

Finite monodromy of some two-parameter families of exponential sums
Francisco Garc\'ia-Cort\'es, Antonio Rojas-Le\'on
https://arxiv.org/abs/2406.10385

Finite monodromy of some two-parameter families of exponential sums
We determine the set of polynomials $f(x)\in k[x]$, where $k$ is a finite field, such that the local system on $\mathbb G_m^2$ which parametrizes the family of exponential sums $(s,t)\mapsto\sum_{x\in k}ψ(sf(x)+tx)$ has finite monodromy, in two cases: when $f(x)=x^d+λx^e$ is a binomial and when $f(x)=(x-α)^d(x-β)^e$ is of Belyi type.

Annunciazione: adesso BASTA... devo fare una definitiva #puliziaContatti (kontatty). Avevo quasi voglia di farla ora col favore delle tenebre, ma ho deciso (consultandomi cogli spiriti) che è meglio farla domattina, col favore del kaffé.
Quindi ora prima scarico l'elenco dei miei vecchi seguiti, casomai dovesse servirmi (

Yay! I beat the AI!

Subhalos are Distributed Anisotropically About Their Hosts
Lorena Mezini, Andrew R. Zentner, Kuan Wang, Catherine Fielder
https://arxiv.org/abs/2406.10150 …

Subhalos are Distributed Anisotropically About Their Hosts
We investigate the distributions of subhalos about their hosts in two suites of zoom-in N-body simulations of halo growth -- one suite focused on Milky Way Mass halos ($\sim 10^{12} \mathrm{M}_{\odot}$) and another focused on cluster ($\sim 10^{15} \mathrm{M}_{\odot}$) halos in the Symphony simulation suite. We find, in agreement with previous work on this subject, that subhalos are distributed anisotropically about their host halos. In particular, the positions of subhalos lie preferentially n…

#knipsehiernur 📷 #photography
—
‚😩‘

Candidate Young Stellar Objects in the S-cluster: The Kinematic Analysis of a Sub-population of the Low-mass G-objects close to Sgr A*
Florian Pei{\ss}ker, Michal Zaja\v{c}ek, Maria Melamed, Basel Ali, Myank Singhal, Till Dassel, Andreas Eckart, Vladimir Karas
https://arxiv.org/abs/2406.09916

Candidate Young Stellar Objects in the S-cluster: The Kinematic Analysis of a Sub-population of the Low-mass G-objects close to Sgr A*
The observation of several L-band emission sources in the S cluster has led to a rich discussion of their nature. However, a definitive answer to the classification of the dusty objects requires an explanation for the detection of compact Doppler-shifted Br$γ$ emission. The ionized hydrogen in combination with the observation of mid-infrared $L$-band continuum emission suggests that most of these sources are embedded in a dusty envelope. These embedded sources are part of the S-cluster, and th…

🔊 #NowPlaying on #KEXP's #DriveTime
The Haunted Youth:
🎵 Into You
#TheHauntedYouth
#Bandcamp
🎶 #Show #playlist 👇
#KEXP #playlist 👇
https://open.spotify.com/playlist/6VNALrOa3gWbk794YuIrwg

Metallicity relations in LMC and SMC from the slope of Red Giant Branch stars in globular clusters
Saurabh Sharma (Aryabhatta Research Institute of Observational Sciences), Jura Borissova (Instituto de Fisica y Astronomia, Universidad de Valparaiso, Ave. Gran Bretana 1111, Valparaiso, Chile, Millennium Institute of Astrophysics, MAS, Chile)
https://<…

Metallicity relations in LMC and SMC from the slope of Red Giant Branch stars in globular clusters
Red giants are an excellent tool for probing the history of star formation and subsequent metallicity evolution in the galaxies. The well-defined red giant branch (RGB) stars of the globular clusters can be used to determine their slopes and to calibrate the RGB slope parameters, age, and metallicity relations. We obtained deep near-IR $JHK$ stellar photometry of 23 LMC/SMC globular clusters. The cluster sample covers a wide range in metallicities $(-1.76<{\rm [Fe/H]}<-0.32)$ and ages $(0.6\,{\…

ALMA Lensing Cluster Survey: Physical characterization of near-infrared-dark intrinsically faint ALMA sources at z=2-4
Akiyoshi Tsujita, Kotaro Kohno, Shuo Huang, Masamune Oguri, Ken-ichi Tadaki, Ian Smail, Hideki Umehata, Zhen-Kai Gao, Wei-Hao Wang, Fengwu Sun, Seiji Fujimoto, Tao Wang, Ryosuke Uematsu, Daniel Espada, Francesco Valentino, Yiping Ao, Franz E. Bauer, Bunyo Hatsukade, Fumi Egusa, Yuri Nishimura, Anton M. Koekemoer, Daniel Schaerer, Claudia Lagos, Miroslava Dessauges-Zava…

ALMA Lensing Cluster Survey: Physical characterization of near-infrared-dark intrinsically faint ALMA sources at z=2-4
We present results from Atacama Large Millimeter/submillimeter Array (ALMA) spectral line-scan observations at 3-mm and 2-mm bands of three near-infrared-dark (NIR-dark) galaxies behind two massive lensing clusters MACS J0417.5-1154 and RXC J0032.1+1808. Each of these three sources is a faint (de-lensed $S_{\text{1.2 mm}}$ $<$ 1 mJy) triply lensed system originally discovered in the ALMA Lensing Cluster Survey. We have successfully detected CO and [C I] emission lines and confirmed that their s…

Evolutionary Map of the Universe (EMU): Observations of Filamentary Structures in the Abell S1136 Galaxy Cluster
Peter. J. Macgregor, Ray P. Norris, Andrew O'Brien, Mohammad Akhlaghi, Craig Anderson, Jordan D. Collier, Evan J. Crawford, Stefan W. Duchesne, Miroslav D. Filipovi\'c, B\"arbel S. Koribalski, Florian Pacaud, Thomas H. Reiprich, Christopher J. Riseley, Lawrence Rudnick, Tessa Vernstrom, Andrew. M. Hopkins, Melanie Johnston-Hollitt, Josh Marvil, Matthew Whiting, …

Evolutionary Map of the Universe (EMU): Observations of Filamentary Structures in the Abell S1136 Galaxy Cluster
We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with data from the Murchison Widefield Array, XMM-Newton, the Wide-field Infrared Survey Explorer, the Digitised Sky Survey, and the Australia Telescope Compact Array. Our analysis shows the X-ray and radio emission in Abell S1136 are closely aligned and…

Interstellar Nitrogen Isotope Ratios: Measurements on tracers of C$^{14}$N and C$^{15}$N
J. L. Chen, J. S. Zhang, C. Henkel, Y. T. Yan, H. Z. Yu, Y. X. Wang, Y. P. Zou, J. Y. Zhao, X. Y. Wang
https://arxiv.org/abs/2406.09683

Interstellar Nitrogen Isotope Ratios: Measurements on tracers of C$^{14}$N and C$^{15}$N
The nitrogen isotope ratio 14N/15N is a powerful tool to trace Galactic stellar nucleosynthesis and constraining Galactic chemical evolution. Previous observations have found lower 14N/15N ratios in the Galactic center and higher values in the Galactic disk. This is consistent with the inside-out formation scenario of our Milky Way. However, previous studies mostly utilized double isotope ratios also including 12C/13C, which introduces additional uncertainties. Here we therefore present observa…

Dust-Evacuated Zones Near Massive Stars: Consequences of Dust Dynamics on Star-forming Regions
Nadine H. Soliman, Philip F. Hopkins, Michael Y. Grudi\'c
https://arxiv.org/abs/2406.09602

Dust-Evacuated Zones Near Massive Stars: Consequences of Dust Dynamics on Star-forming Regions
Stars form within dense cores composed of both gas and dust within molecular clouds. However, despite the crucial role that dust plays in the star formation process, its dynamics is frequently overlooked, with the common assumption being a constant, spatially uniform dust-to-gas ratio and grain size spectrum. In this study, we introduce a set of radiation-dust-magnetohydrodynamic simulations of star forming molecular clouds from the {\small STARFORGE} project. These simulations expand upon the …

Molecular gas excitation in the circumgalactic medium of MACS1931-26
L. Ghodsi, J. Zhou, P. Andreani, C. De Breuck, A. W. S. Man, Y. Miyamoto, T. G. Bisbas, A. Lundgren, Z. -Y. Zhang
https://arxiv.org/abs/2406.09552

Molecular gas excitation in the circumgalactic medium of MACS1931-26
The evolution of galaxies is largely affected by exchanging material with their close environment, the circumgalactic medium (CGM). In this work, we investigate the CGM and the interstellar medium (ISM) of the bright central galaxy (BCG) of the galaxy cluster, MACS1931-26 at z~0.35. We detected [CI](2-1), CO(1-0), and CO(7-6) emission lines with the APEX 12-m and NRO 45-m telescopes. We complemented these single-dish observations with CO(1-0), CO(3-2), and CO(4-3) ALMA interferometric data and …

Emergence of red, star-forming galaxies (red misfits) in a {\Lambda}CDM universe
Aditya Manuwal (Instituto de Astronom\'ia, Universidad Nacional Aut\'onoma de M\'exico, A.P. 70-264, 04510 CDMX, M\'exico)
https://arxiv.org/abs/2406.09456

Emergence of red, star-forming galaxies (red misfits) in a ΛCDM universe
We investigate the formation of red misfits (RM) using a cosmological, hydrodynamical simulation from the $\rm \small EAGLE$ project. Similar to observations, the RM possess less dust, higher stellar metallicities, and older stellar populations compared to blue, star-forming galaxies (BA) at the same $M_\star$. Lagrangian particle-tracking reveals that the older ages of RM have resulted from a combined effect of higher star formation efficiency (SFE), and the earlier onset and faster net deplet…

Bar formation and evolution in the cosmological context: Inputs from the Auriga simulations
Francesca Fragkoudi, Robert Grand, R\"udiger Pakmor, Facundo G\'omez, Federico Marinacci, Volker Springel
https://arxiv.org/abs/2406.09453

Bar formation and evolution in the cosmological context: Inputs from the Auriga simulations
Galactic bars drive the internal evolution of spiral galaxies, while their formation is tightly coupled to the properties of their host galaxy and dark matter halo. To explore what drives bar formation in the cosmological context and how these structures evolve throughout cosmic history, we use the Auriga suite of magneto-hydrodynamical cosmological zoom-in simulations. We find that bars are robust and long-lived structures, and we recover a decreasing bar fraction with increasing redshift whic…

If we had PR, would there be a Labour/Lib Dem/Green coalition?
#GE2024

It doesn't feel like 1997.
#GE2024

33.8% - Is this the smallest popular share of the vote of any winning party in a General Election? I think it is.
#ge2024

I think we need to acknowledge more widely the fantasist-realist axis in politics. We need to be able to put policies, politicians and parties on this axis so that we can make conscious choices about supporting populist movements.
No-one is immune. We are all fantasists to some extent, but some people and ideas are in a danger zone.

Braverman is wrong. Deporting refugees to Rwanda would solve nothing. The Tories have wasted millions on a white elephant policy only to get headlines in the Daily Mail.

Back in 2010, just after Cameron became PM, my wife overheard two middle class women in Oxford discussing it. One of them said, "it's so nice to have a proper person in charge again," as though Blair and Brown had not been real people.
I think this indicates the malign influence of the British class system and how it informs people's political instincts.

This is quite a deviation from Monbiot's usual concerns. I agree with what he says. If Trump wins the presidential election, I expect Europe to be at war within five years.
I am a pacifist by inclination. But I also want to protect my children's freedom of belief, politics and sexuality. These would all be under threat under a Russian-installed British dictator.
I have absolutely no doubt that Farage would happily be that dictator.
https://www.theguardian.com/commentisfree/article/2024/jul/04/donald-trump-uk-rearmament-vladimir-putin-defence

Another change I'd like to see to the British constitution is that the monarch should be elected.
#ge2024

Liz Truss is out!!!!!
#ge2024 #torydeathparty