Tootfinder

Exoplanet K2-18 b: Wohl doch keine Spur von außerirdischem Leben auf Wasserwelt
Der angebliche Nachweis von Dimethyldisulfid auf einem Exoplaneten hat im April für Aufregung gesorgt. Ein Forschungsteam weist das nun gleich doppelt zurück.

Die ePetition 182975 an den Bundestag aus dem Bereich Straßenverkehrs-Ordnung mit dem Titel
Einführung eines Vorankündigungsschildes bei bevorstehendem Tempolimit
kann bis zum Donnerstag 04. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, dass auf deutsc…

Die ePetition 182975 an den Bundestag aus dem Bereich Straßenverkehrs-Ordnung mit dem Titel
Einführung eines Vorankündigungsschildes bei bevorstehendem Tempolimit
kann bis zum Donnerstag 04. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, dass auf deutsc…

lmao omg

#Unverpackt Laden in #Walldorf macht Werbung. Am 5.7. ist dort eine #KleiderTauschBörse
Funfact: Der Laden ist auch ein

On the semigroup of endomorphisms of the semigroup $\boldsymbol{B}_{\omega}^{\mathscr{F}^2}$ with the two-element family $\mathscr{F}^2$ of inductive nonempty subsets of $\omega$
Oleg Gutik, Marko Serivka
https://arxiv.org/abs/2506.18837

On the semigroup of endomorphisms of the semigroup $\boldsymbol{B}_ω^{\mathscr{F}^2}$ with the two-element family $\mathscr{F}^2$ of inductive nonempty subsets of $ω$
We study the semigroup $\overline{\boldsymbol{End}}(\boldsymbol{B}_ω^{\mathscr{F}^2})$ of all endomorphisms of the bicyclic extension $\boldsymbol{B}_ω^{\mathscr{F}^2}$ with the two-element family $\mathscr{F}^2$ of inductive nonempty subsets of $ω$. The submonoid $\left\langle\varpi\right\rangle^1$ of $\overline{\boldsymbol{End}}(\boldsymbol{B}_ω^{\mathscr{F}^2})$ with the property that every element of the semigroup $\overline{\boldsymbol{End}}(\boldsymbol{B}_ω^{\mathscr{F}^2})$ has the …

Determining explicitly the Mordell-Weil group of certain rational elliptic surfaces
Remke Kloosterman
https://arxiv.org/abs/2506.19423 https://

Determining explicitly the Mordell-Weil group of certain rational elliptic surfaces
Let $A,B$ be nonzero rational numbers. Consider the elliptic curve $E_{A,B}/\mathbb{Q}(t)$ with Weierstrass equation $y^2=x^3+At^6+B$. An algorithm to determine $\mathrm{rank } E_{A,B}(\mathbb{Q}(t))$ as a function of $(A,B)$ was presented in a recent paper by Desjardins and Naskrecki. We will give a different and shorter proof for the correctness of that algorithm, using a more geometric approach and discuss for which classes of examples this approach might be useful.

Algebraic independence of solutions to multiple Lotka-Volterra systems
Yutong Duan, Christine Eagles, L\'eo Jimenez
https://arxiv.org/abs/2507.17090 https://

Algebraic independence of solutions to multiple Lotka-Volterra systems
Consider some non-zero complex numbers $a_i, b_i, c_i, d_i$ with $1 \leq i \leq n$ and the associated classical Lotka-Volterra systems \[ \begin{cases} x' = a_i xy + b_i y \newline y' = c_i xy + d_i y \text{ .} \end{cases} \] We show that as long as $b_i \neq d_i$ for all $i$ and $\{ b_i, d_i\} \neq \{ b_j, d_j\}$ for $i \neq j$, any tuples $(x_1,y_1) , \cdots , (x_m,y_m)$ of pairwise distinct, non-degenerate solutions of these systems are algebraically independent over $\mathbb{C}$…

Paris-based Zama, which is developing fully homomorphic encryption tech for blockchain and AI apps, raised a $57M Series B at a $1B valuation (Cate Lawrence/Tech.eu)
https://tech.eu/2025/06/25/zama-becomes-1st-i-fhe-unicorn…

Zama becomes 1st fully homomorphic encryption unicorn with $57M raise
French open source cryptography company Zama today announced a $57 million Series B funding round co-led by Blockchange Ventures and Pantera Capital, bringing Zama’s total funding to over $150 million, and its valuation to north of a billion USD.  Founded by Dr Pascal Paillier and Dr Rand Hindi, the company is building state-of-the-art Fully Homomorphic Encryption (FHE) solutions for blockchain. Fully homomorphic encryption (FHE) allows computations to be performed on encrypted data without…

Infinite polynomial patterns in large subsets of the rational numbers
Ethan Ackelsberg
https://arxiv.org/abs/2506.19667 https://arxiv…

Infinite polynomial patterns in large subsets of the rational numbers
Inspired by a question of Kra, Moreira, Richter, and Robertson, we prove two new results about infinite polynomial configurations in large subsets of the rational numbers. First, given a finite coloring of $\mathbb{Q}$, we show that there exists an infinite set $B = \{b_n : n \in \mathbb{N}\} \subseteq \mathbb{Q}$ such that $\{b_i, b_i^2 + b_j : i < j\}$ is monochromatic. Second, we prove that every subset of positive density in the rational numbers contains a translate of such an infinite conf…

A Two-armed Bandit Framework for A/B Testing
Jinjuan Wang, Qianglin Wen, Yu Zhang, Xiaodong Yan, Chengchun Shi
https://arxiv.org/abs/2507.18118 https://arx…

A Two-armed Bandit Framework for A/B Testing
A/B testing is widely used in modern technology companies for policy evaluation and product deployment, with the goal of comparing the outcomes under a newly-developed policy against a standard control. Various causal inference and reinforcement learning methods developed in the literature are applicable to A/B testing. This paper introduces a two-armed bandit framework designed to improve the power of existing approaches. The proposed procedure consists of three main steps: (i) employing doubl…

Mathematik Rätsel: Was ist die Lösung? 🤔
a × b = 15

c - d = 5
= =
3 12
a = ?
b = ?
c = ?
d = ?
#mathemathik #aufgabe #ratsellosung

it's so obnoxious that corporations worth hundreds of billions of dollars send shit like this to literal volunteers

Ane defends her PhD: Network analysis of Denmark’s #bicycle infrastructure
https://nerds.itu.dk/2025/05/23/ane-defends-her-phd-n…

Flavor SU(3) analysis of the charmless semileptonic $B \to PV\ell^ \nu_\ell$ decays
Yi Qiao, Jin-Huan Sheng, Yuan-Guo Xu, Ru-Min Wang
https://arxiv.org/abs/2507.17537

Flavor SU(3) analysis of the charmless semileptonic $B \to PV\ell^+ν_\ell$ decays
All charmless $B \to PV\ell^+ν_\ell$ ($P$ denotes light pseudoscalar meson and $V$ denotes vector meson) decays have not been experimentally observed to date, but some of them might be measured in the near future. The charmless $B \to PV\ell^+ν_\ell$ decays with the axial-vector ($A$) resonance states, the tensor ($T$) resonance states and the excited vector ($V_{E,D}$) resonance states are studied based on flavor SU(3) analysis in this work, where $V_E$ contains $\{ρ(1450), K^*(1410), ω(14…

Ronnie Dio and The Prophets - "Ooh Poo Pah Doo" (1962)
Not the best version (there are hundreds) but I just love hearing early Dio's voice on this NOLA R&B classic. 🔥 🤘
#music #R&B #60s

Rubio Fleshes Out Trump's Case That Iran Nuclear Capacity Was Eliminated (New York Times)
https://www.nytimes.com/2025/06/25/us/politics/iran-nuclear-program-damage-rubio.html?unlocked_article_code=1.Rk8.Qcah.NRcCxPKYcs-B&smid=url-share
http://www.memeorandum.com/250625/p132#a250625p132

Transient star B/R ratio and star formation in $z\gtrsim 1$ lensed galaxies
Sung Kei Li, Jose M. Palencia, Jose M. Diego, Jeremy Lim, Patrick L. Kelly, Ashish K. Meena, James Nianias, Hayley Williams, Liliya L. R. Williams, Adi Zitrin
https://arxiv.org/abs/2506.17565

Transient star B/R ratio and star formation in $z\gtrsim 1$ lensed galaxies
The extreme magnification from galaxy clusters and microlenses therein allows the detection of individual, luminous stars in lensed galaxies as transient events, and hence provides a valuable window into the high mass stellar population in $z>1$ galaxies. As these bright stars can only be formed at specific ages, the relative abundance of transient events at blue (B) and red (R) optical wavelengths ($B/R$ ratio) can provide insights into the star formation history of lensed galaxies. Here, we f…

Static Spherical Vacuum Solution to Bumblebee Gravity with Time-like VEVs
Hao Li, Jie Zhu
https://arxiv.org/abs/2506.17957 https://ar…

Static Spherical Vacuum Solution to Bumblebee Gravity with Time-like VEVs
The static spherical vacuum solution in a bumblebee gravity model where the bumblebee field \(B_μ\) has a time-like vacuum expectation value \(b_μ\) is studied. We show that in general curved spacetime solutions are not allowed and only the Minkowski spacetime exists. However, it is surprising that a non-trivial solution can be obtained so long as a unique condition for the vacuum expectation \(b^2\equiv -b^μb_μ=2/κ\), where \(κ=8πG\) is satisfied. We argue that naturally this solution i…

A converse to Cartan's Theorem B: The extension property for real analytic and Nash sets
Jos\'e F. Fernando, Riccardo Ghiloni
https://arxiv.org/abs/2506.18347

A converse to Cartan's Theorem B: The extension property for real analytic and Nash sets
In 1957 Cartan proved his celebrated Theorem B and deduced that if $Ω\subset{\mathbb R}^n$ is an open set and $X$ is a coherent real analytic subset of $Ω$, then $X$ has the analytic extension property, that is, each real analytic function on $X$ extends to a real analytic function on $Ω$. The converse implication in its full generality remains unproven. In the literature only special cases of non-coherent real analytic sets $X\subsetΩ$ without the extension property appear, some of them du…

A B-Spline Finite Element Method for Cloth Simulation
Yuqi Meng, Yihao Shi, Kemeng Huang, Ning Guo, Taku Komura, Yin Yang, Minchen Li
https://arxiv.org/abs/2506.18867

A B-Spline Finite Element Method for Cloth Simulation
We present a B-spline finite element method (FEM) for cloth simulation. Building on quadratic B-spline basis functions, our method provides a globally $C^1$-continuous displacement field, enabling consistent and accurate discretization of both membrane and bending energies. This smooth representation effectively mitigates locking artifacts and mesh dependency issues commonly observed with linear FEM. To further improve efficiency, we develop a reduced integration scheme that separately optimize…

für die Spontanen und Kurzentschlossenen: in etwas mehr als einer Stunde startet der "virtuelle Spaziergang durch das digitalisierte Berliner Kulturerbe". Hier geht's zur Last-Minute-Anmeldung: https://terminplaner6.dfn.de/de/b/fbbf71e8002fe99787…

Befürchtungen, bei digitalcourage.social könnte es sich um eine Free-Speech-Instanz handeln, haben sich als unbegründet erwiesen.
#Antizionismus

A Closed-Form Symbolic Generator: $A^n B^n = C^n D^n$, for $n = 2,3$
Jamal Agbanwa
https://arxiv.org/abs/2506.19173 https://arxiv…

A Closed-Form Symbolic Generator: $A^n + B^n = C^n + D^n$, for $n = 2,3$
We present a unified framework for constructing integer solutions to $A^{n} + B^{n} = C^{n} + D^{n}$ for $n=2,3$. For $n=2$, we derive explicit formulas for any solutions via differences of squares. For $n=3$, we introduce general formulas that include the Hardy-Ramanujan number 1729 for instance, we also construct a symbolic generator that produces infinitely many integer solutions to the Diophantine equation A^3 + B^3 = C^3 + D^3 . While the resulting formulas for $A,B,C,D$ from the symbolic …

everyone: wow, see-in-the-dark contact lenses!
me: they made tiny contact lenses for mice!
https://phys.org/news/2025-05-infrared-contact-lenses-people-dark.html

Infrared contact lenses allow people to see in the dark, even with their eyes closed
Neuroscientists and materials scientists have created contact lenses that enable infrared vision in both humans and mice by converting infrared light into visible light. Unlike infrared night vision goggles, the contact lenses, described in the journal Cell, do not require a power source—and they enable the wearer to perceive multiple infrared wavelengths. Because they're transparent, users can see both infrared and visible light simultaneously, though infrared vision was enhanced when partic…

Cotorsion pairs on extensions of abelian categories
Dongdong Hu
https://arxiv.org/abs/2506.17898 https://arxiv.org/pdf/2506.17898

Cotorsion pairs on extensions of abelian categories
Let $\mathcal{B}$ be an abelian category with enough projective objects and enough injective objects and let $\mathcal{A}=\mathcal{B}\ltimes_η\mathsf{F}$ be an $η$-extension of $\mathcal{B}$. Given a cotorsion pair $(\mathcal{X},\;\mathcal{Y})$ in $\mathcal{B}$, we construct a cotorsion pair $(^{\perp}{\mathsf{U}^{-1}(\mathcal{Y})}, \mathsf{U}^{-1}(\mathcal{Y}))$ in $\mathcal{A}$ and a cotorsion pair $(Δ(\mathcal{X}),\;Δ(\mathcal{X})^\perp)$ in $\mathcal{A}$ for $\mathsf{F}^2=0$. In additio…

Berezin-Li-Yau inequality for mixed local-nonlocal Dirichlet-Laplacian
Aidyn Kassymov, Berikbol T. Torebek
https://arxiv.org/abs/2506.17780 https://…

Berezin-Li-Yau inequality for mixed local-nonlocal Dirichlet-Laplacian
In this paper, we consider an eigenvalue problem for mixed local-nonlocal Laplacian $$\mathcal{L}^{a,b}_{\Om}:=-aΔ+b(-Δ)^s,\,a>0,\,b\in\mathbb{R},\,s\in (0,1),$$ with Dirichlet boundary conditions. First, the case $a>0$ and $b>0$ is considered and the Berezin-Li-Yau inequality (lower bounds of the sum of eigenvalues) is established. This inequality is characterised as the maximum of the classical and fractional versions of the Berezin-Li-Yau inequality, and, in particular, yields both the cla…

Der Freitagskommentar auf #dnip zur oft blauäugigen Abhängigkeit von #Microsoft https://dnip.ch/2025/05/23/vogt-am-fre

Faithful, Interpretable Chest X-ray Diagnosis with Anti-Aliased B-cos Networks
Marcel Kleinmann, Shashank Agnihotri, Margret Keuper
https://arxiv.org/abs/2507.16761

Faithful, Interpretable Chest X-ray Diagnosis with Anti-Aliased B-cos Networks
Faithfulness and interpretability are essential for deploying deep neural networks (DNNs) in safety-critical domains such as medical imaging. B-cos networks offer a promising solution by replacing standard linear layers with a weight-input alignment mechanism, producing inherently interpretable, class-specific explanations without post-hoc methods. While maintaining diagnostic performance competitive with state-of-the-art DNNs, standard B-cos models suffer from severe aliasing artifacts in thei…

Searching for GEMS: TOI-7149~b an Inflated Giant Planet causing a 12% Transit of a Fully Convective M-dwarf
Shubham Kanodia, Caleb I. Ca\~nas, Suvrath Mahadevan, Andrea S. J. Lin, Henry A. Kobulnicky, Ian Karfs, Alexina Birkholz, Arvind Gupta, Mark Everett, Michael Rodruck, Rowen I. Glusman, Te Han, William D. Cochran, Chad F. Bender, Scott A. Diddams, Daniel Krolikowski, Samuel Halverson, Jessica Libby-Roberts, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Gu{\dh}mundur …

Searching for GEMS: TOI-7149~b an Inflated Giant Planet causing a 12% Transit of a Fully Convective M-dwarf
We describe the discovery and characterization of TOI-7149~b, a 0.705 $\pm$ 0.075 $M_J$, 1.18 $\pm$ 0.045 $R_J$ gas giant on a $\sim 2.65$ day period orbit transiting an M4V star with a mass of 0.344 $\pm$ 0.030~$M_{\odot}$ and an effective temperature of 3363 $\pm$ 59 K. The planet was first discovered using NASA's TESS mission, which we confirmed using a combination of ground-based photometry, radial velocities, and speckle imaging. The planet has one of the deepest transits of all known main…

On the Asymptotic Density of a GCD-based Map
Thang Pang Ern, Malcolm Tan Jun Xi
https://arxiv.org/abs/2506.19812 https://arxiv.org/pd…

On the Asymptotic Density of a GCD-based Map
We show that the symmetry of \[f\left(a,b\right)=\frac{\operatorname{gcd}\left(ab,a+b\right)}{\operatorname{gcd}\left(a,b\right)}\] stems from an $\operatorname{SL}_2\left(\mathbb{Z}\right)$ action on primitive pairs and that all solutions to $f\left(a,b\right)=n$ admit a uniform three-parameter description -- recovering arithmetic-progression families via the Chinese remainder theorem when $n$ is squarefree. It shows that the density of pairs with $f\left(a,b\right)=1$ tends to $\prod_p\left(1…

Do Riemannian Submersions Preserve Positive Intermediate Ricci Curvature?
Hasan M. El-Hasan, Russell Phelan, Frederick Wilhelm
https://arxiv.org/abs/2507.17839 https://

Do Riemannian Submersions Preserve Positive Intermediate Ricci Curvature?
Pro and the third author showed that there are Riemannian submersions $π: M \to B$ with $M$ a compact manifold with positive Ricci curvature, whose base $B$, has Ricci curvatures with both signs. Thus, Riemannian submersions need not preserve positive Ricci curvature. In this note we establish the degree to which this result extends into the setting of positive intermediate Ricci curvature. It is an immediate consequence of the Gray--O'Neill Horizontal curvature equation that if $π: M\to B$…

On Pareto-Optimal and Fair Allocations with Personalized Bi-Valued Utilities
Jiarong Jin, Biaoshuai Tao
https://arxiv.org/abs/2507.18251 https://arxiv.org/…

On Pareto-Optimal and Fair Allocations with Personalized Bi-Valued Utilities
We study the fair division problem of allocating $m$ indivisible goods to $n$ agents with additive personalized bi-valued utilities. Specifically, each agent $i$ assigns one of two positive values $a_i > b_i > 0$ to each good, indicating that agent $i$'s valuation of any good is either $a_i$ or $b_i$. For convenience, we denote the value ratio of agent $i$ as $r_i = a_i / b_i$. We give a characterization to all the Pareto-optimal allocations. Our characterization implies a polynomial-time alg…

Seems appropriate for the current day
#Wordle
Wordle 1,436 4/6
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Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven H\"ofling, Vladimir Dyakonov
https://arxiv.org/abs/2506.19803

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis
Negatively charged boron vacancies ($\mathrm{V_B^-}$) in hexagonal boron nitride (hBN) are emerging as promising solid-state spin qubits due to their optical accessibility, structural simplicity, and compatibility with photonic platforms. However, quantifying the density of such defects in thin hBN flakes has remained elusive, limiting progress in device integration and reproducibility. Here, we present an all-optical method to quantify $\mathrm{V_B^-}$ defect density in hBN by correlating Rama…

i'm away this evening, so the great zoe b & the source unlimited is filling in for me on @… from 9 to midnight. get in tune at wfmu.org!

Amazon updates its color screen Kindle Colorsoft with a cheaper 16GB model for $250 and a kids-focused bundle with one year of Kids Plus for $270, available now (Jay Peters/The Verge)
https://www.theverge.com/news/712765/amazon-kindle-colorsoft-16-gb-kids

Amazon is launching a cheaper color Kindle
Amazon is launching two new iterations of the Kindle Colorsoft: a cheaper model and one available in a kids-focused bundle.

Die ePetition 182723 an den Bundestag aus dem Bereich Straßenverkehrs-Ordnung mit dem Titel
Ein Pkw-Parkplatz für mehrere Motorräder
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Der Deutsche Bundestag möge beschließen, dass es Motorradfahrern bundesweit gest…

Die ePetition 182723 an den Bundestag aus dem Bereich Straßenverkehrs-Ordnung mit dem Titel
Ein Pkw-Parkplatz für mehrere Motorräder
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Der Deutsche Bundestag möge beschließen, dass es Motorradfahrern bundesweit gest…

Stallings' Group is Simply Connected at Infinity
Michael Mihalik
https://arxiv.org/abs/2506.19195 https://arxiv.org/pdf/2506.1919…

Stallings' Group is Simply Connected at Infinity
Let $F_2$ be the free group on two generators and let $B_n$ ($n \geq 2$) denote the kernel of the homomorphism $$F_2 \times \cdots (n) \cdots \times F_2 \rightarrow {\mathbb Z}$$ sending all generators to the generator $1$ of $\mathbb Z$. The groups $B_k$ are called the {\it Bieri-Stallings} groups and $B_k$ is type $\mathcal F_{k-1}$ but not $\mathcal F_k$. For $n\geq 3$ there are short exact sequences of the form $$1 \rightarrow B_{n-1} \rightarrow B_n \rightarrow F_2 \rightarrow 1.$$ Thi…

/The Unraveling/ (B Rosenbaum) gelesen. Spielt in einer sehr fernen Zukunft (die auch durch unerklärte Neologismen plausibel wirkt). Es gibt ua ein rigides Geschlechtersystem - das zwischen introvertierten, ruhigen Staids (zir) und extrovertierten Vails (ve) unterscheidet. Rosenbaum macht das sehr elegant. Interessanter Effekt beim Lesen, über den ich noch nachdenken muss: ich ordne Staids und Vails automatisch und stereotyp "unseren" Geschlechtern zu.

Setting aside copyright/commercial/other aspects, a thought about writing blog posts that LLMs train on. When people write posts, they (a) feel good about helping others, and (b) hope to get some credit and visibility for doing so.
When mediated through LLMs, no longer the satisfaction that your consumer is a human (who might comment, thank, share, etc.); nor the cred that comes from people remembering the author, posting on HN, etc.
That is, it totally destroys the incentive str…

Neue EU-Labels: Apple kritisiert Testmethoden, stuft iPhone und iPad herunter
In einem Paper erläutert Apple, wie die Firma mit den neuen Pflichtlabels der EU-Kommission umgeht. Das iPhone bekommt ein "B", mehrere iPads gar ein "G".

„Nur das US-Militär verfügt über die Tarnkappenbomber des Typs B-2, die als einzige in der Lage sind, die (🤡) mehrere Tonnen schwere sogenannte (🤡🤡) Bunkerbrecher-Bombe abzuwerfen.“
Investigativjournalismus am Limit… 🙄
https://www.

Make sure you check out today's Metacurity for the most critical infosec developments you should know, including
--US agency overseeing cache of nuclear weapons was breached in SharePoint attack,
--Funding for critical infrastructure cyber threat detection has expired,
--Iranians received Apple spyware warnings,
--OpenAI founder warns of AI fraud crisis,
--Clorox claims IT provider gave hackers employee passwords,
--Feds warn of Interlock ransomware.

US agency overseeing cache of nuclear weapons was breached in SharePoint attack
Funding for critical infrastructure cyber threat detection has expired, Iranians received Apple spyware warnings, OpenAI founder warns of AI fraud crisis, Clorox claims IT provider gave hackers employee passwords, Feds warn of Interlock ransomware, IVF records posted on dark web, much more

Determination of $|V_{\rm cb}|$ using Bayesian analysis of the $B \rightarrow D^{*}\ell {\bar \nu}_\ell$ semileptonic decay width with four-loop QCD corrections
Wang Li, Xing-Gang Wu, Hua Zhou, Xu-Chang Zheng
https://arxiv.org/abs/2506.18026

Determination of $|V_{\rm cb}|$ using Bayesian analysis of the $B \rightarrow D^{*}\ell {\bar ν}_\ell$ semileptonic decay width with four-loop QCD corrections
The Cabibbo-Kobayashi-Maskawa matrix element $|V_{\rm cb}|$ is an important Standard Model parameter, whose value can be determined by using the semi-leptonic decay $B\rightarrow D^{*}\ell{\bar ν}_\ell$. The perturbative QCD (pQCD) corrections to the $B \to D^{*}$ transform form factor ${\cal F}(w)$ has been known up to the N$^3$LO level, whose magnitude remains sensitive to the choice of renormalization scale $μ_r$. To improve the precision of ${\cal F}(w)$ and hence $|V_{\rm …

Die ePetition 183324 an den Bundestag aus dem Bereich Straßengüterverkehr mit dem Titel
Kostenfreies Recht auf Toilettennutzung insbesondere für Berufskraftfahrer
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Der Deutsche Bundestag möge beschließen, ein geset…

Die ePetition 183324 an den Bundestag aus dem Bereich Straßengüterverkehr mit dem Titel
Kostenfreies Recht auf Toilettennutzung insbesondere für Berufskraftfahrer
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Der Deutsche Bundestag möge beschließen, ein geset…

Pattern formation Statistics on Fermat Quotients
Cristian Cobeli, Alexandru Zaharescu, Zhuo Zhang
https://arxiv.org/abs/2506.17684 https://

Pattern formation Statistics on Fermat Quotients
Despite their simple definition as $\mathfrak{q}_p(b):=\frac{b^{p-1}-1}{p} \pmod p$, for $0\le b \le p^2-1$ and $\gcd(b,p)=1$, and their regular arrangement in a $p\times(p-1)$ Fermat quotient matrix $\mathtt{FQM}(p)$ of integers from $[0,p-1]$, Fermat quotients modulo $p$ are well known for their overall lack of regularity. Here, we discuss this contrasting effect by proving that, on the one hand, any line of the matrix behaves like an analogue of a randomly distributed sequence of numbers, an…

Knew what it was but couldn't spell it. #Wordle
Wordle 1,435 4/6
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On the global breadth of finite groups with nontrivial partitions
Seid Kassaw Muhie, Daniele Ettore Otera, Francesco G. Russo
https://arxiv.org/abs/2506.19675

On the global breadth of finite groups with nontrivial partitions
In a series of recent contributions on the notion of global breadth $\mathbf{B}(G)$ of a finite group $G$, it was interesting to observe the structural conditions arising from the classification of finite groups of $\mathbf{B}(G)=8$. This motivated the study of a new class of finite groups, namely $\mathcal{H}=\{G \ | \ G \ \mbox{satisfies the condition } \ |G| \le \mathbf{B}(G)(\mathbf{B}(G) + 1)\}$ and very little is known about $\mathcal{H}$. Here we focus on the groups with n…

Philadelphia-based Asylon, which modifies Boston Dynamics' robot dog Spot into DroneDog, raised a $26M Series B led by Insight, taking its total funding to $45M (Julie Bort/TechCrunch)
https://techcrunch.com/2025/07/22/robot-guard-dogs-help-asylon-rai…

Robot guard dogs help Asylon raise a $26M Series B | TechCrunch
DroneDogs can be sent to places unsafe for humans or real dogs and can do tasks like dangerous chemical detection. 

Die ePetition 182294 an den Bundestag aus dem Bereich Kinderfragen mit dem Titel
Einführung einer Schwimmkurspflicht für Kinder ab 6 Jahren
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird die Einführung einer Schwimmkurspflicht für Kinder ab 6 Jahren gefordert.

Die ePetition 182294 an den Bundestag aus dem Bereich Kinderfragen mit dem Titel
Einführung einer Schwimmkurspflicht für Kinder ab 6 Jahren
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird die Einführung einer Schwimmkurspflicht für Kinder ab 6 Jahren gefordert.

On the subdirect product of graph bundles
Yanga Bavuma, Francesco G. Russo, Stefano Spessato
https://arxiv.org/abs/2507.14530 https://

On the subdirect product of graph bundles
The subdirect product of two finite groups $A$ and $B$ is defined as a subgroup of the direct product $A \times B$, which is a well-known notion in finite group theory. While it is clear that, under appropriate choices of sets of generators $S$, $S_A$ and $S_B$, the Cayley graph $Cay(A \times B, S)$ corresponds to the Cartesian product $Cay(A, S_A) \square Cay(B, S_B)$ of two graphs, there is no analogue at the level of graph product that reflects the notion of subdirect product of groups. This…

Sigh, 5 more months with a severely compromised Mayor leading NYC. These first 6 months have been SO LONG. https://masto.nyc/@EthanHarp/114910136564563219

Die ePetition 182492 an den Bundestag aus dem Bereich Normung mit dem Titel
Änderung der Bestimmung der Energieeffizienzklasse bei Waschmaschinen
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition soll erreicht werden, dass bei Waschmaschinen die Energieeffizienzklasse and…

Die ePetition 182492 an den Bundestag aus dem Bereich Normung mit dem Titel
Änderung der Bestimmung der Energieeffizienzklasse bei Waschmaschinen
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition soll erreicht werden, dass bei Waschmaschinen die Energieeffizienzklasse and…

Monogenic sextic trinomials $x^6 Ax^3 B$ and their Galois groups
Joshua Harrington, Lenny Jones
https://arxiv.org/abs/2507.17021 https://

Monogenic sextic trinomials $x^6+Ax^3+B$ and their Galois groups
Let $f(x)=x^6+Ax^3+B\in {\mathbb Z}[x]$, with $A\ne 0$, and suppose that $f(x)$ is irreducible over ${\mathbb Q}$. We define $f(x)$ to be {\em monogenic} if $\{1,θ,θ^2,θ^3,θ^4,θ^{5}\}$ is a basis for the ring of integers of ${\mathbb Q}(θ)$, where $f(θ)=0$. For each possible Galois group $G$ of $f(x)$ over ${\mathbb Q}$, we use a theorem of Jakhar, Khanduja and Sangwan to give explicit descriptions of all monogenic trinomials $f(x)$ having Galois group $G$. We also investigate when the…

"So no matter what happens, Eric Adams isn't going ANYWHERE."
Oh man. Is that a threat? 😬
https://bsky.app/profile/did:plc:qrllvid7s54k4hnwtqxwetrf/post/3luq5e6i62k2k

Die ePetition 181875 an den Bundestag aus dem Bereich Namensrecht mit dem Titel
Änderung des Namensänderungsgesetzes von Familiennamen und Vornamen
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine Änderung des Namensrechts dahingehend gefordert, dass Vornamen a…

Die ePetition 181875 an den Bundestag aus dem Bereich Namensrecht mit dem Titel
Änderung des Namensänderungsgesetzes von Familiennamen und Vornamen
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine Änderung des Namensrechts dahingehend gefordert, dass Vornamen a…

Triply heavy tetraquarks $\bar{b}c\bar{q}c$ and $\bar{c}b\bar{q}b$ in a constituent quark model
Gang Yang, Jialun Ping, Jorge Segovia
https://arxiv.org/abs/2507.13728

Triply heavy tetraquarks $\bar{b}c\bar{q}c$ and $\bar{c}b\bar{q}b$ in a constituent quark model
A systematic investigation of $S$-wave triply heavy tetraquark systems with quark content $\bar{b}c\bar{q}c$ and $\bar{c}b\bar{q}b$ $(q = u,\,d,\,s)$, spin-parity quantum numbers $J^P=0^+$, $1^+$, $2^+$ and isospin $I=0,\,\frac{1}{2}$, is carried out within the constituent quark model framework. The four-body bound and resonance states are determined by solving the Schrödinger equation employing the high-precision and efficient Gaussian Expansion Method (GEM) in conjunction with the powerful C…

Trunk Tools, which provides AI services to organize construction documentation, raised a $40M Series B led by Insight, bringing its total funding to $70M (Kyt Dotson/SiliconANGLE)
https://siliconangle.com/2025/07/24/trunk-too…

Trunk Tools raises $40M to revolutionize how construction teams interact with project data - SiliconANGLE
Trunk Tools raises $40M to revolutionize how construction teams interact with project data - SiliconANGLE

Counting elliptic curves over $\mathbb{Q}$ with bounded naive height
Adrian Barquero-Sanchez, Daniel Mora-Mora
https://arxiv.org/abs/2506.18874 https://

Counting elliptic curves over $\mathbb{Q}$ with bounded naive height
In this paper, we give exact and asymptotic formulas for counting elliptic curves $ E_{A,B} \colon y^2 = x^3 + Ax + B $ with $ A, B \in \mathbb{Z} $, ordered by naive height. We study the family of all such curves and also several natural subfamilies, including those with fixed $ j $-invariant and those with complex multiplication (CM). In particular, we provide formulas for two commonly used normalizations of the naive height appearing in the literature: the calibrated naive height, defined by…

Die ePetition 182852 an den Bundestag aus dem Bereich Verkehrsordnungswidrigkeiten mit dem Titel
Faire Regeln für Verkehrsüberwachungsmaßnahmen im deutschen Straßenverkehr
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, dass ab …

Die ePetition 182852 an den Bundestag aus dem Bereich Verkehrsordnungswidrigkeiten mit dem Titel
Faire Regeln für Verkehrsüberwachungsmaßnahmen im deutschen Straßenverkehr
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, dass ab …

So I think the idea is to keep dropping buttons and keys from laptop keyboards until everything is just a tablet? RIP dedicated pgup/pgdn keys.
meanwhile some hardware engineer was like, "keep that dedicated 'prt sc' key, I push that 500 times per day! never touch page down, tho.."

Die ePetition 181743 an den Bundestag aus dem Bereich Sachenrecht mit dem Titel
Reform des § 1093 BGB (Wohnrecht an heutigen Lebensverhältnissen ausrichten)
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine Änderung des Bürgerlichen Gesetzbuchs dahingehend gefor…

Die ePetition 181743 an den Bundestag aus dem Bereich Sachenrecht mit dem Titel
Reform des § 1093 BGB (Wohnrecht an heutigen Lebensverhältnissen ausrichten)
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine Änderung des Bürgerlichen Gesetzbuchs dahingehend gefor…

Metaview, which builds AI tools to automate hiring, including interview note-taking and generating job descriptions, raised a $35M Series B led by GV (Beatrice Nolan/Fortune)
https://fortune.com/2025/06/25/uber-palantir-alums…

Exclusive: Uber and Palantir alums raise $35M to disrupt corporate recruitment with AI
Metaview’s full suite of AI tools aims to streamline and enhance every stage of the hiring process.

In her latest attempt to break me, the 8yo has decided to stop sleeping through the night. 🙄

Die ePetition 174803 an den Bundestag aus dem Bereich Internationale Verträge und Abkommen mit dem Titel
Sperrung von Karten bei Verlust von Debitkarten und anderen Zahlungskarten
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, …

Die ePetition 174803 an den Bundestag aus dem Bereich Internationale Verträge und Abkommen mit dem Titel
Sperrung von Karten bei Verlust von Debitkarten und anderen Zahlungskarten
kann bis zum Mittwoch 03. September 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, …

Die ePetition 181164 an den Bundestag aus dem Bereich Eherecht mit dem Titel
Anerkennung einer Verlobung/Hochzeit zwischen einem Menschen und einer Künstlichen Intelligenz (KI)
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition werden gesetzliche Regelungen gefordert, welc…

Die ePetition 181164 an den Bundestag aus dem Bereich Eherecht mit dem Titel
Anerkennung einer Verlobung/Hochzeit zwischen einem Menschen und einer Künstlichen Intelligenz (KI)
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition werden gesetzliche Regelungen gefordert, welc…

Xbow, whose AI tool automates penetration testing and topped HackerOne's US leaderboard for finding and reporting software bugs, raised a $75M Series B (Dina Bass/Bloomberg)
https://www.bloomberg.com/news/articles/2025-06-…

Every time I see people voicing concerns about AI calling it the "AIpocalypse", I see this: https://en.wikipedia.org/wiki/Alpocalypse

Alpocalypse - Wikipedia

Die ePetition 182101 an den Bundestag aus dem Bereich Arbeitsrecht mit dem Titel
Gesetzliche Regelung zur verpflichtenden Kommunikation von Arbeitgeber und Arbeitnehmer vor der Kündigung während der Probezeit
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine ges…

Die ePetition 182101 an den Bundestag aus dem Bereich Arbeitsrecht mit dem Titel
Gesetzliche Regelung zur verpflichtenden Kommunikation von Arbeitgeber und Arbeitnehmer vor der Kündigung während der Probezeit
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine ges…

I can't believe it's 2025 and we're still doing this. #AbolishStateDOTs
https://lemmy.world/post/31872843

California highway project will ‘dump half a billion dollars into the ocean’ - Lemmy.World
Caltrans has proposed a $500 million project to widen a wine country highway that the agency said could be underwater in 25 years. Members of the California Transportation Commission will decide at a public meeting beginning Thursday whether to award Caltrans and local agencies a $73 million grant that would cover some of the cost to widen Highway 37 — a roadway linking Vallejo to Sears Point across the Napa Sonoma Marsh, much of which is only one lane in each direction. In the long term, Cal…

Die ePetition 182349 an den Bundestag aus dem Bereich Unlauterer Wettbewerb mit dem Titel
Einfacher und wirksamer Verbraucherschutz gegen unerlaubte E-Mail-Werbung (Spam) und betrügerische Phishing-Nachrichten
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine ge…

Die ePetition 182349 an den Bundestag aus dem Bereich Unlauterer Wettbewerb mit dem Titel
Einfacher und wirksamer Verbraucherschutz gegen unerlaubte E-Mail-Werbung (Spam) und betrügerische Phishing-Nachrichten
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine ge…

Die ePetition 178586 an den Bundestag aus dem Bereich Kontrolle von Kriegswaffen und sonstigen Rüstungsgütern mit dem Titel
Keine Lieferung von Taurus-Marschflugkörpern an die Ukraine
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, keine Taurus-Marschflu…

Die ePetition 178586 an den Bundestag aus dem Bereich Kontrolle von Kriegswaffen und sonstigen Rüstungsgütern mit dem Titel
Keine Lieferung von Taurus-Marschflugkörpern an die Ukraine
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird gefordert, keine Taurus-Marschflu…

lol everything's going great over there https://www.express.co.uk/news/world/2072388/full-list-airlines-cancelled-flights-dubai-iran-war

Full list of airlines including British Airways cancelling flights to Dubai
Airlines around the world are cancelling flights to the Gulf following US strikes on Iran over the weekend.

Sources: the US FDA's AI tool Elsa has fabricated nonexistent studies, misrepresented research, and cannot access relevant documents to assist with review work (Sarah Owermohle/CNN)
https://cnn.com/2025/07/23/politics/fda-ai-elsa-drug-regulation-makary

FDA’s artificial intelligence is supposed to revolutionize drug approvals. It’s making up studies
Insiders tell CNN the FDA’s AI is “hallucinating” studies and can’t access key documents. Agency leaders insist the AI is getting better, and use is not mandatory.

Die ePetition 181278 an den Bundestag aus dem Bereich Verfahren in den Angelegenheiten der Freiwilligen Gerichtsbarkeit mit dem Titel
Information der Bürger über gesetzliche Fristen durch Behörden und Gerichte
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird die Her…

Die ePetition 181278 an den Bundestag aus dem Bereich Verfahren in den Angelegenheiten der Freiwilligen Gerichtsbarkeit mit dem Titel
Information der Bürger über gesetzliche Fristen durch Behörden und Gerichte
kann bis zum Montag 04. August 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird die Her…

I tried to explain what a compiler is to the 8yo, and her takeaway is: "a compiler is a thing that translates to Baby Language."

Primary 'em all. I don't know what Meng's expecting from her constituents, but I'll be damned if she things she can rely on MY vote.
https://bsky.app/profile/did:plc:rbzy3issuaqfwgorq22z67aw/post/3lseqak6vck2c

Calgary-based GeologicAI, which uses AI and sensors to help capture data in rock and core samples faster, raised a $44M Series B led by Blue Earth Capital (Alex Riehl/BetaKit)
https://betakit.com/geologicai-cashes-in-on-data-centre-boom-with-60-5-…

GeologicAI cashes in on data centre boom with $60.5-million CAD Series B
Mining tech startup will use funding to scale globally as demand for critical minerals intensifies.

The smile on her face when he walks into the trap with, "how did I do that?" (where "that" is a $25 billion increase in funds to United Healthcare)
https://fed.brid.gy/r/https://bsky.app/profile/did:plc:5o6k7j…

NYers, don't forget to get out there and vote today if you haven't already! And ffs #DontRankCuomo, he's a corrupt abuser who covered up the nursing home deaths that he caused.
#NYC #NYCPol

😂
https://mastodon.social/@edwardchampion/114738630098598870

we love bus stuff https://bsky.app/profile/did:plc:w45xv3md5q5w5eoqx3xhhe3n/post/3lsflauviwk2h

So the good news is, NYC will likely have a Mayor who isn't a puppet for Trump.
The bad news is, the feds are absolutely going to be pulling as much funding from NYC as they can. We're going to need NY state support ASAP. Hopefully Hochul & lawmakers realize and understand that, rather than just being terrified by a brown man in office.

Look, the FBI already released the most important MLK doc years ago.

mychart is constantly telling me that i'm a space alien

Did another thing! #NYC #NYCPol #DontRankCuomo