Tootfinder

An interesting write up of an interview with the Edinburgh Spokes cycle campaign.
"Spokes also started producing cycle maps at that point [in the 80s]. Partly you produce a cycle map to show people where the nice places are, whether it's off road routes, quiet streets or whatever, to just show them that it is possible."
"But it's also a campaigning tool, because the map shows you the gaps."

"If your campaigning doesn't generate a response, you're not being radical enough": Active travel campaigners Spokes on making spaces bike friendly
road.cc chat with the organisation as they release their new cycle map of West Lothian and discuss meaningful cycle campaigning after nearly 50 years

Off-cycle elections send Republicans a clear midterms warning (Avery Lotz/Axios)
https://www.axios.com/2025/12/17/republicans-warnings-off-cycle-elections-chart
http://www.memeorandum.com/251217/p2#a251217p2

Magnetic activity and differential rotation of HIP12653
Amina Boulkaboul, Lotfi Yelles Chaouche, Alessandro Carmelo Lanzafame, Yassine Damerdji
https://arxiv.org/abs/2509.14902 …

Magnetic activity and differential rotation of HIP12653
We present a spectroscopic and photometric study of HIP12653 to investigate its magnetic cycle and differential rotation. Using HARPS archival spectra matched with MARCS-AMBER theoretical templates, we derive the stellar parameters (Teff, logg, FeH, and vsini) of the target. The S-index, an activity indicator based on the emission of the CaII H&K lines, is fitted to determine the magnetic cycle and rotation periods. We refine the magnetic cycle period to 5799.20 \pm 0.88 d and suggest the exist…

“Service academies to accept conservative alternative to SAT and ACT”
And it is called the CLT?
They’ll have to find it first.
Hey oh!
https://www.politico.com/news/2025/09/15/military-academies-clt-standardized-test-00564290…

"#crypto leverage — whether through borrowing programs, margin trading, or perpetual futures — creates a cycle of risk that can rapidly snowball"
Again, of course. Leverage was one of the main drivers of the great crash of 1929. People then mortgaged their houses to buy stocks; now, to buy #Bitcoin

Anatomy of a crypto meltdown
October 2025 brought the most dramatic crypto flash crash of all time, but it was only a dress rehearsal for the systemic crisis the industry is building toward.

Cool! I got it to last a full 24-hour cycle!
#TimeLapse #Snow

Interesting little animation of the "life cycle" of a SARS-COV-2 particle!
(not really the right term I think, because viruses aren't "alive", but does convey the timespan depicted)
#covid #video #animation

Inspired by machine learning optimization: can gradient-based optimizers solve cycle skipping in full waveform inversion given sufficient iterations?
Xinru Mu, Omar M. Saad, Shaowen Wang, Tariq Alkhalifah
https://arxiv.org/abs/2509.14919

Inspired by machine learning optimization: can gradient-based optimizers solve cycle skipping in full waveform inversion given sufficient iterations?
Full waveform inversion (FWI) iteratively updates the velocity model by minimizing the difference between observed and simulated data. Due to the high computational cost and memory requirements associated with global optimization algorithms, FWI is typically implemented using local optimization methods. However, when the initial velocity model is inaccurate and low-frequency seismic data (e.g., below 3 Hz) are absent, the mismatch between simulated and observed data may exceed half a cycle, a p…

🐐 Bundled climate solutions for better production: Scientists listen to West African farmers
https://phys.org/news/2025-09-bundled-climate-solutions-production-scientists.html

Bundled climate solutions for better production: Scientists listen to West African farmers
The rain delays, sorghum withers; when a storm finally breaks, complaints rise again. To break this cycle of uncertainty, scientists from the Alliance of Bioversity International and CIAT, INERA, and the University of Ghana conducted the first large-scale survey on agricultural climate services in Burkina Faso, Ghana, Mali, and Senegal.

Ultrafast optically induced tunneling in narrow metallic gaps from the time dependent density functional perspective
Boyang Ma, Antton Babaze, Michael Kr\"uger, Javier Aizpurua, Andrei G. Borisov
https://arxiv.org/abs/2509.14802

Ultrafast optically induced tunneling in narrow metallic gaps from the time dependent density functional perspective
In this work, using the time-dependent density functional theory, we address the electron tunneling triggered by short (single-cycle and several-cycle) optical pulses in narrow metallic gaps under conditions relevant for actual experiments. We identify photon-assisted tunneling with one-photon, two-photon, and higher-order photon absorption, and we discuss the effect of the tunneling barrier, applied bias, and strength of the optical field on transition from photon-assisted tunneling (weak opti…

Potential NFL coaching vacancies and top candidates, plus Tomlin's Flacco worries https://www.nytimes.com/athletic/6719955/2025/10/15/nfl-2026-head-coach-replacements-cycle-scoop-city/

You should read this and the comments too. https://social.chinwag.org/@mike/115227345504898198

Wrt to a certain article going around today:
I think if your parents are abusive and/or say or do certain abominable things and you don’t cut them off, there’s something wrong with you.
Which would make perfect sense being raised by people that were abusive to you.
Gotta break the cycle. If you don’t do it for yourself, think about how it affects people you love like your partner or children.

The Pattern the Raiders Defense Can No Longer Sustain https://www.si.com/nfl/raiders/onsi/las-vegas-pattern-defense-no-longer-sustain

A note on the number of non-cycle components in a pseudo 2-factor of graphs
Masaki Kashima
https://arxiv.org/abs/2510.12155 https://arxiv.org/pdf/2510.1215…

A note on the number of non-cycle components in a pseudo 2-factor of graphs
A pseudo 2-factor of a graph is a spanning subgraph such that each component is $K_1$, $K_2$, or a cycle. This notion was introduced by Bekkai and Kouider in 2009, where they showed that every graph $G$ has a pseudo 2-factor with at most $α(G)-δ(G)+1$ components that are not cycles. For a graph $G$ and a set of vertices $S$, let $δ_G(S)$ denote the minimum degree of vertices in $S$. In this note, we show that every graph $G$ has a pseudo 2-factor with at most $f(G)$ components that are not c…

Brian Callahan's quick flameout continues the Titans' stunning three-year cycle of chaos. Now what?

https://www.cbssports.com/nfl/news/brian-c

"Every stage of fossil fuel life cycle harms people & the environment: Report"
#FossilFuels #Climate #ClimateChange

Every stage of fossil fuel life cycle harms people & the environment: Report
A new report traces the life cycle of fossil fuels — from exploration and extraction to combustion and decommissioning — and found stark consequences at each stage for the health of people and the planet alike. “By examining fossil fuels’ health hazards across their entire life cycle, this report makes an important addition to our current understanding […]

übers Radfahren, v.a. in den Niederlanden.
“Think of it this way: Car drivers behave like a bunch of geese. They have the same distance from each other and fly at the same speed, and move almost in military formation. Cyclists move like a swarm of sparrows. There are thousands of them moving in chaos, but there are no collisions. They turn a little bit; they change their speed. You must do the same.”

Plotted my MacBook Pro's battery usage history based on almost 4 years of coconutBattery data for shits and giggles

Polar Filaments Capture High Latitude Solar Poloidal Field Interactions and can Foretell the Future Sunspot Cycle Amplitude before Polar Field Precursors
Srinjana Routh, Shaonwita Pal, Dibyendu Nandy, Subhamoy Chatterjee, Dipankar Banerjee, Mohd. Saleem Khan
https://arxiv.org/abs/2510.12142

Polar Filaments Capture High Latitude Solar Poloidal Field Interactions and can Foretell the Future Sunspot Cycle Amplitude before Polar Field Precursors
Polar fields at the minimum of a sunspot cycle -- which are a manifestation of the radial component of the Sun's poloidal field -- are deemed to be the best indicator of the strength of the toroidal component, and hence the amplitude of the future sunspot cycle. However, the Sun's polar magnetic fields are difficult to constrain with ground-based or space-based observations from near the plane-of-ecliptic. In this context, polar filaments -- dark, elongated structures that overlie polarity inve…

Maybe this whole AI era is a mash-up of Terminator meets Brewster’s Millions.
Sam Altman (Brewster) is sent back in time to start such a laughably bad AI hype cycle that it effectively changes the course of human history, steering us away from our doom.
Through his efforts, what could have been a human-eradicating AI leaves us with hallucinations, weird sex bots, AI avatars of our dead loved ones, and AI-powered toys telling children to hurt themselves.

🇺🇦 #NowPlaying on KEXP's #MechanicalBreakdown
The Treasury:
🎵 Novice Cycle
#TheTreasury
https://thetreasury1.bandcamp.com/track/novice-cycle
https://open.spotify.com/track/2jCGQBSdpgX2nlolCs2KMR

Systematic Bayesian Evaluation of Resonance Parameters in 19Ne for the 15O(alpha,gamma)19Ne and 18F(p,alpha)15O Reactions
S. H. Kim, K. Y. Chae, C. H. Kim, C. D. Nesaraja, M. S. Smith
https://arxiv.org/abs/2509.14570

Systematic Bayesian Evaluation of Resonance Parameters in 19Ne for the 15O(alpha,gamma)19Ne and 18F(p,alpha)15O Reactions
We present a comprehensive evaluation of the nuclear structure properties of 19Ne using a novel and rigorous Bayesian statistical framework. Precise characterization of 19Ne resonance parameters is critical for accurately determining reaction rates of the astrophysically significant 15O(alpha, gamma)19Ne and 18F(p, alpha)15O reactions, which govern breakout from the hot CNO cycle in X-ray bursts and influence gamma-ray emission in novae, respectively. By reconstructing likelihood functions from…

On Modified Diagonal Cycles and the Beauville Decomposition of the Ceresa Cycle
Lucas Lagarde, Mohamed Moakher, Morena Porzio, James Rawson, Fernando Trejos Su\'arez
https://arxiv.org/abs/2510.07416

On Modified Diagonal Cycles and the Beauville Decomposition of the Ceresa Cycle
Let $C$ be a curve of genus $g \geq 2$, and let $J$ be its Jacobian. The choice of a degree 1 divisor $e$ on $C$ gives an embedding of $C$ into $J$; we denote by $[C]_{}^{e}\in \mathrm{CH}\left( J;\mathbb{Q} \right) $ the class in the Chow group of $J$ defined by the image of this embedding. It is known from the work of S.-W. Zhang that the vanishing of the Ceresa cycle $\mathrm{Cer}(C,e):=[C]^{e} - [-1]_* [C]^e$ is equivalent to both the vanishing of the 1st Beauville component $[C]_{(1)}^e$ a…

Characterizing planetary systems with SPIRou: questions about the magnetic cycle of 55 Cnc A and two new planets around B
C. Moutou, P. Petit, P. Charpentier, P. Cristofari, C. Baruteau, P. Th\'ebault, L. Arnold, E. Artigau, A. Carmona, N. J. Cook, F. Debras, X. Delfosse, J. -F. Donati, L. Malo, M. Ould-Elhkim
https://arxiv.org/abs/251…

Characterizing planetary systems with SPIRou: questions about the magnetic cycle of 55 Cnc A and two new planets around B
One of the first exoplanet hosts discovered thirty years ago, the star 55 Cnc has been constantly observed ever since. It is now known to host at least five planets with orbital periods ranging from 17 hours to 15 years. It is also one of the most extreme metal rich stars in the neighbourhood and it has a low-mass secondary star. In this article, we present data obtained at the Canada-France-Hawai'i Telescope with the SPIRou spectropolarimeter on both components of the 55 Cnc stellar system. We…

"OOP grew dramatically during the decade between 1985 and 95. The first OOPSLA Conf was held in '86, chaired by Daniel Ingalls of Smalltalk fame. Bjarne Stroustrup released the first versions of C . Brad Cox melted Smalltalk on top of C and created Objective-C. Bertrand Meyer released both Eiffel and his bestseller book. Borland added OOP support to Turbo Pascal 5.5. Famous groups like “The Three Amigos,” “The Gang of Four,” and the Agile movement coalesced around OOP."
…

The Hype Cycle Of OOP
Even though Marketing buzzwords might have an effect akin to Kryptonite against our readers, we're going to use the famous Gartner's Five-Step Hype Cycle to take a closer look at the practice of Object-Oriented Programming (OOP) and its various ups and downs in the past 50 years. Remembering that one of the core tenets of this magazine is to make the impossible dialogue possible, the framework provided by Gartner fits this task perfectly well.

📉 Either too little or too much: Report finds world's water cycles are getting more erratic
#climate

Either too little or too much: Report finds world's water cycles are getting more erratic
The water cycle has become increasingly erratic and extreme, swinging between deluge and drought, according to a new report from the World Meteorological Organization (WMO). It highlights the cascading impacts of too much or too little water on economies and society.

Multispacecraft Measurements of the Evolving Geometry of the Solar #Alfvén Surface over Half a Solar Cycle: https://iopscience.iop.org/article/10.3847/2041-8213/ae0e5c -> Astronomers Create First Map of the Sun's Outer Boundary: https://www.cfa.harvard.edu/news/astronomers-create-first-map-suns-outer-boundary

The poset of maximal tubings of the cycle graph is a lattice
Ben Adenbaum, Emily Barnard, Max Hlavacek, Bryson Kagy, Nathan R. T. Lesnevich, George D. Nasr, Katie Waddle
https://arxiv.org/abs/2510.09429

The poset of maximal tubings of the cycle graph is a lattice
The poset of maximal tubings of a graph generalizes several well-known and remarkable partial orders. Notable examples include the weak Bruhat order and the Tamari lattice, posets of maximal tubings for the complete graph and the path graph, respectively. It is an open problem to characterize graphs for which the poset of maximal tubings is a lattice. In this paper, we prove that the poset of maximal tubings for the cycle graph is a lattice, and moreover that it is semidistributive and congruen…

Very unique look at a cardiac arrest handled almost flawlessly. EMS arrives while the pt is A&Ox4, he arrests in front of them and CPR is started within seconds, first shock after like one cycle of compressions. ROSC achieved so fast they don't even get drugs or an airway established before he wakes back up.
And the whole thing is caught from multiple camera angles with a HIPAA release from the pt.

Former Raiders WR Henry Ruggs Graduates From Alabama While in Prison https://heavy.com/sports/nfl/las-vegas-raiders/henry-ruggs-graduates-alabama-prison/

"Every stage of fossil fuel life cycle harms people & the environment: Report"
#FossilFuels #Climate #ClimateChange

Every stage of fossil fuel life cycle harms people & the environment: Report
A new report traces the life cycle of fossil fuels — from exploration and extraction to combustion and decommissioning — and found stark consequences at each stage for the health of people and the planet alike. “By examining fossil fuels’ health hazards across their entire life cycle, this report makes an important addition to our current understanding […]

lazygit is perfection and that sadly means i will never learn jj
https://www.bwplotka.dev/2025/lazygit/

The (lazy) Git UI You Didn't Know You Need
When my son was born last April, I had ambitious learning plans for the upcoming 5w paternity leave. As you can imagine, with two kids, life quickly verified this plan 🙃. I did eventually start some projects. One of the goals (sounding rebellious in the current AI hype cycle) was to learn and use neovim for coding. As a Goland aficionado, I (and my wrist) have always been tempted by no-mouse, OSS, gopls based, highly configurable dev setups.

An opportunity to improve Data Center Efficiency: Optimizing the Server's Upgrade Cycle
Panagiota Nikolaou, Freddy Gabbay, Jawad Haj-Yahya, Yiannakis Sazeides
https://arxiv.org/abs/2510.05787

An opportunity to improve Data Center Efficiency: Optimizing the Server's Upgrade Cycle
This work aims to improve a data center's efficiency by optimizing the server upgrade plan: determine the optimal timing for replacing old servers with new ones. The opportunity presented by this approach is demonstrated through a study based on historical server data. The study establishes a significant opportunity to increase the QPS/(TCOxCO2) metric by formulating a global upgrade plan at the data center's design time covering its entire life cycle. This plan leverages information, such as s…

Can Each Side's Faith Break the Cycle of Mutually Assured Destruction for Israelis and Palestinians? (The UnPopulist)
https://www.theunpopulist.net/p/can-each-sides-faith-break-the-cycle
http://www.memeorandum.com/251007/p94#a251007p94

“We have to break the cycle of ‘invent here, scale there.” It's an old habit, way past its sell-by date.
It's an uphill battle, but maybe Ford can pull it off.
Ford’s Car of the Future, Hatched in a Skunk Works Near Los Angeles
https://www.nytimes.com/2025/12…

Ford’s Car of the Future, Hatched in a Skunk Works Near Los Angeles
Desperate to catch up with Chinese automakers, Ford is redesigning its fleet with a Silicon Valley-style team. Is it too late?

Transforming Noise Distributions with Histogram Matching: Towards a Single Denoiser for All
Sheng Fu, Junchao Zhang, Kailun Yang
https://arxiv.org/abs/2510.06757 https://…

Transforming Noise Distributions with Histogram Matching: Towards a Single Denoiser for All
Supervised Gaussian denoisers exhibit limited generalization when confronted with out-of-distribution noise, due to the diverse distributional characteristics of different noise types. To bridge this gap, we propose a histogram matching approach that transforms arbitrary noise towards a target Gaussian distribution with known intensity. Moreover, a mutually reinforcing cycle is established between noise transformation and subsequent denoising. This cycle progressively refines the noise to be co…

Bengals rebound, CeeDee Lamb's return and fantasy football strategy for first-half heroes https://www.nytimes.com/athletic/6726050/2025/10/17/fantasy-football-news-week-7-bengals-flacco-ceedee-lamb/

From Agentification to Self-Evolving Agentic AI for Wireless Networks: Concepts, Approaches, and Future Research Directions
Changyuan Zhao, Ruichen Zhang, Jiacheng Wang, Dusit Niyato, Geng Sun, Xianbin Wang, Shiwen Mao, Abbas Jamalipour
https://arxiv.org/abs/2510.05596

From Agentification to Self-Evolving Agentic AI for Wireless Networks: Concepts, Approaches, and Future Research Directions
Self-evolving agentic artificial intelligence (AI) offers a new paradigm for future wireless systems by enabling autonomous agents to continually adapt and improve without human intervention. Unlike static AI models, self-evolving agents embed an autonomous evolution cycle that updates models, tools, and workflows in response to environmental dynamics. This paper presents a comprehensive overview of self-evolving agentic AI, highlighting its layered architecture, life cycle, and key techniques,…

Generalized Pseudo-Hopf Bifurcation: Limit Cycle Position and Period
Lucas Queiroz Arakaki, Douglas Novaes, Paulo Santana
https://arxiv.org/abs/2510.05269 https://

Generalized Pseudo-Hopf Bifurcation: Limit Cycle Position and Period
We investigate planar piecewise-smooth vector fields with a discontinuity line, focusing on the bifurcation of crossing limit cycles that arise when one of the vector fields is translated along the discontinuity set. We establish topological conditions under which such bifurcations occur and, under additional generic hypotheses, derive precise asymptotic expressions for both the position and the period of the resulting limit cycle in terms of the perturbation parameter. Our results extend the c…

Wind Farm Dynamics over a Diurnal Cycle: Analysis of a Comprehensive Large Eddy Simulation, Web-Services Accessible Dataset
Shuolin Xiao, Xiaowei Zhu, Ghanesh Narasimhan, Dennice F Gayme, Charles Meneveau
https://arxiv.org/abs/2510.05005

Wind Farm Dynamics over a Diurnal Cycle: Analysis of a Comprehensive Large Eddy Simulation, Web-Services Accessible Dataset
The atmospheric boundary layer undergoes significant changes throughout a diurnal cycle, affecting wind turbine performance and wakes in wind farms. Wind farm Large Eddy Simulations (LES) under such conditions provide rich datasets to study the underlying dynamics and identify important trends. Here, we describe a comprehensive open dataset generated using LES of an 8-turbine wind farm consisting of four rows of two turbines. To avoid specifying either prescribed surface temperature or heat flu…

The Blue Jay Survey: Deep JWST Spectroscopy for a Representative Sample of Galaxies at Cosmic Noon
Sirio Belli, Letizia Bugiani, Minjung Park, J. Trevor Mendel, Rebecca L. Davies, Amir H. Khoram, Benjamin D. Johnson, Joel Leja, Sandro Tacchella, Vanessa Brown, Charlie Conroy, Razieh Emami, Yijia Li, Caterina Liboni, Gabriel Maheson, Elijah P. Mathews, Rohan P. Naidu, Erica J. Nelson, Bryan A. Terrazas, Rainer Weinberger

The Blue Jay Survey: Deep JWST Spectroscopy for a Representative Sample of Galaxies at Cosmic Noon
We present the Blue Jay survey, a Cycle-1 JWST program aimed at studying the stellar and gas content of galaxies at Cosmic Noon. The survey consists of deep spectroscopy for 153 targets observed over two pointings in the COSMOS field using the NIRSpec micro-shutter assembly (MSA). We employ the three medium-resolution gratings G140M, G235M, and G395M, with exposure times of 13 hours, 3.2 hours, and 1.6 hours, respectively. We thus obtain full coverage of the 1-5 micron range, corresponding to t…

Basic Cycle Ratio: Cost-Effective Ranking of Influential Spreaders from Local and Global Perspectives
Wenxin Zheng, Wenfeng Shi, Tianlong Fan, Linyuan Lv
https://arxiv.org/abs/2509.26220

Basic Cycle Ratio: Cost-Effective Ranking of Influential Spreaders from Local and Global Perspectives
Spreading processes are fundamental to complex networks. Identifying influential spreaders with dual local and global roles presents a crucial yet challenging task. To address this, our study proposes a novel method, the Basic Cycle Ratio (BCR), for assessing node importance. BCR leverages basic cycles and the cycle ratio to uniquely capture a node's local significance within its immediate neighborhood and its global role in maintaining network cohesion. We evaluated BCR on six diverse real-wor…

Anharmonic Effects in Ge2Sb2Te5 and Consequences on Thermodynamic Stability
Owain T. Beynon, Adham Hashibon
https://arxiv.org/abs/2510.12526 https://arxiv.…

Anharmonic Effects in Ge2Sb2Te5 and Consequences on Thermodynamic Stability
Chalcogenide materials are an important class of phase change material (PCMs) owing to their employment in digital memory solutions. Chalgogenide materials have applications in phase change random access memory (PCRAM) due to their ability to reversibly cycle between crystalline and amorphous states, and of these materials Ge2Sb2Te5 (GST) is of particular interest due to its speed, stability and low crystallisation temperatures. GST possesses two stable crystalline polymorphs, cubic and hexagon…

Good luck to this campaign.
One of my best cycle tours followed the Wye valley to the sea at Chepstow.
It is a scandal what's been done to this rural watercourse.
River Wye pollution prompts UK's largest environmental lawsuit - BBC News
https://www.bbc.co.uk/news/articles/crrj4q

River Wye pollution prompts UK's largest environmental lawsuit
Livestock and water companies are accused of “extensive” pollution in the Wye, Lugg and Usk rivers.

Cycle is All You Need: More Is Different
Xin Li
https://arxiv.org/abs/2509.21340 https://arxiv.org/pdf/2509.21340…

Cycle is All You Need: More Is Different
We propose an information-topological framework in which cycle closure is the fundamental mechanism of memory and consciousness. Memory is not a static store but the ability to re-enter latent cycles in neural state space, with invariant cycles serving as carriers of meaning by filtering order-specific noise and preserving what persists across contexts. The dot-cycle dichotomy captures this: transient dots scaffold exploration, while nontrivial cycles encode low-entropy content invariants that …

A Graph Width Perspective on Partially Ordered Hamiltonian Paths and Cycles II: Vertex and Edge Deletion Numbers
Jesse Beisegel, Katharina Klost, Kristin Knorr, Fabienne Ratajczak, Robert Scheffler
https://arxiv.org/abs/2510.08378

A Graph Width Perspective on Partially Ordered Hamiltonian Paths and Cycles II: Vertex and Edge Deletion Numbers
We consider the problem of finding a Hamiltonian path or cycle with precedence constraints in the form of a partial order on the vertex set. We study the complexity for graph width parameters for which the ordinary problems $\mathsf{Hamiltonian\ Path}$ and $\mathsf{Hamiltonian\ Cycle}$ are in $\mathsf{FPT}$. In particular, we focus on parameters that describe how many vertices and edges have to be deleted to become a member of a certain graph class. We show that the problems are $\mathsf{W[1]}$…

Low-cost Pyranometer-Based ANN Approach for MPPT in Solar PV Systems
Luiz Fernando M. Arruda, Moises Ferber, Diego Greff
https://arxiv.org/abs/2510.10313 https://

Low-cost Pyranometer-Based ANN Approach for MPPT in Solar PV Systems
This article presents a study on the application of artificial neural networks (ANNs) for maximum power point tracking (MPPT) in photovoltaic (PV) systems using low-cost pyranometer sensors. The proposed approach integrates pyranometers, temperature sensors, and an ANN to estimate the duty cycle of a DC/DC converter, enabling the system to consistently operate at its maximum power point. The strategy was implemented in the local control of a Cuk converter and experimentally validated against th…

CAPSim: A Fast CPU Performance Simulator Using Attention-based Predictor
Buqing Xu, Jianfeng Zhu, Yichi Zhang, Qinyi Cai, Guanhua Li, Shaojun Wei, Leibo Liu
https://arxiv.org/abs/2510.10484

CAPSim: A Fast CPU Performance Simulator Using Attention-based Predictor
CPU simulators are vital for computer architecture research, primarily for estimating performance under different programs. This poses challenges for fast and accurate simulation of modern CPUs, especially in multi-core systems. Modern CPU peformance simulators such as GEM5 adopt the cycle-accurate and event-driven approach, which is timeconsuming to simulate the extensive microarchitectural behavior of a real benchmark running on out-of-order CPUs. Recently, machine leaning based approach has …

I tried to do a longer time lapse video by putting the same cell phone in the window, looking down at the backyard (aka the alley). The goal was to get a full twenty four hour cycle over ten seconds of video. Apparently putting the phone into energy-saver mode was not sufficient. Once it's back up to 100%, maybe I should put it into airplane mode and add a battery pack. 🤷‍♂️

Cyclo-logistique en Belgique
- plus de 5 millions de colis livrés Š vélo en Belgique, soit 70 % de plus qu’en 2023
- 10 millions de km parcourus par des coursiers Š vélo, soit 30 % de plus
- 4112 tonnes de CO₂ évitées et 12 millions € de coûts externes économisés
https://

China's efforts to slow land degradation and climate change
by planting trees and restoring grasslands
have shifted water around the country in huge, unforeseen ways, new research shows.
Between 2001 and 2020, changes in vegetation cover reduced the amount of fresh water available for humans and ecosystems in the eastern monsoon region and northwestern arid region,
which together make up 74% of China's land area, according to a study published Oct. 4 in the jo…

China has planted so many trees it's changed the entire country's water distribution
Huge "regreening" efforts in China over the past few decades have activated the country's water cycle and moved water in ways that scientists are just now starting to understand.

Two Proofs of the Hamiltonian Cycle Identity
Hamilton Sawczuk, Edinah Gnang
https://arxiv.org/abs/2510.02473 https://arxiv.org/pdf/2510.02473

Two Proofs of the Hamiltonian Cycle Identity
The Hamiltonian cycle polynomial can be evaluated to count the number of Hamiltonian cycles in a graph. It can also be viewed as a list of all spanning cycles of length $n$. We adopt the latter perspective and present a pair of original proofs for the Hamiltonian cycle identity which relates the Hamiltonian cycle polynomial to the important determinant and permanent polynomials. The first proof is a more accessible combinatorial argument. The second proof relies on viewing polynomials as both l…

Here's a radical transport idea...
For every two lane road, turn one lane into a segregated two lane cycle route, and make the other one a contraflow motor vehicle lane.
Watch many car drivers switch to cycling, and RTAs drop. Short distance travel times will be reduced for many.
And I say all this as both a car driver and a cycle rider.
#Transport #Cars #Bikes

Far beyond the Sun - the magnetic cycle of iota Horologii: #star: https://www.aip.de/en/news/heartbeat-of-a-star/

Another big jump in atmospheric CO2 at Mauna Loa: based on daily values, the October average was ~425.0 ppm, that's 2.6 ppm higher than last year.
"US government is closed; site not updated", so we'll have to rely on the automated data collection for now.

Neither #Affinity nor #Darktable seemingly support 1D LUTs, which would have been too easy and useful for my #DigitalNegative preparation tool... Instead they both insist on using only 3D LUT…

Spiral Model Technique For Data Science & Machine Learning Lifecycle
Rohith Mahadevan
https://arxiv.org/abs/2510.06987 https://arxiv.org/pdf/2510.06987…

Spiral Model Technique For Data Science & Machine Learning Lifecycle
Analytics play an important role in modern business. Companies adapt data science lifecycles to their culture to seek productivity and improve their competitiveness among others. Data science lifecycles are fairly an important contributing factor to start and end a project that are data dependent. Data science and Machine learning life cycles comprises of series of steps that are involved in a project. A typical life cycle states that it is a linear or cyclical model that revolves around. It is…

Performance characterization of a new Structural and Thermal Architecture for a future spaceborne Closed-Cycle Dilution Refrigerator
Valentin Sauvage, Ana\"is Besnard, Cl\'emence de Jabrun, Mehdi Bouzit, Bruno Maffei
https://arxiv.org/abs/2509.21546

Performance characterization of a new Structural and Thermal Architecture for a future spaceborne Closed-Cycle Dilution Refrigerator
A Structural and Thermal Model (STM) has been developed to support the new spaceborne Closed-Cycle Dilution Refrigerator (CCDR), which aims to provide continuous cooling at 100~mK for long-duration astrophysical missions. The STM is based on a hexapod architecture that ensures both thermal decoupling and mechanical robustness during launch. In this paper, we present the characterization of its thermal and mechanical performances. A dedicated experimental setup was used to investigate the therma…

Versucht, eine Recherche im Landnutzungsmodul von #Copernicus zu machen. Dazu die eingebaute Hilfe-KI benutzt und insgesamt 3 Fragen gestellt. Nicht nur, dass mich die Antworten leider nicht weiter gebracht haben und ganz andere Schwerpunkte hatten, als meine Fragen. Der Hammer ist aber die Zahl der Abkürzungen. Bei 3 Fragen habe ich ca 200-300 Abkürzungen als Antwort erhalten. Kein Wunder, …

Today in Focus: ‘Enshittification’: how we got the internet no one asked for
Episode webpage: https://www.theguardian.com/news/series/todayinfocus
Media file:

Temporal-Prior-Guided View Planning for Periodic 3D Plant Reconstruction
Sicong Pan, Xuying Huang, Maren Bennewitz
https://arxiv.org/abs/2510.07028 https://

Temporal-Prior-Guided View Planning for Periodic 3D Plant Reconstruction
Periodic 3D reconstruction is essential for crop monitoring, but costly when each cycle restarts from scratch, wasting resources and ignoring information from previous captures. We propose temporal-prior-guided view planning for periodic plant reconstruction, in which a previously reconstructed model of the same plant is non-rigidly aligned to a new partial observation to form an approximation of the current geometry. To accommodate plant growth, we inflate this approximation and solve a set co…

Another endless night, staring at this damn screen, hoping for something that’ll never come. Feels like I’m stuck in this cycle of work, waste, and digital chains.
This fake world just keeps selling me more ways to waste time, more ways to feel empty. Everything’s a distraction. Everything’s a lie.
Capitalism is truly shit, a broken system in a clean shirt.
#Capitalism…

I tried batch uploading "a couple" (several hundreds) of my GPX tracks from the recent years into #wanderer . It went all smooth! And I finally have the "white areas" which I didn't walk or cycle -- yet! :D
When people ask me if I'm out and about often, I never know what to say. I try to get into nature once in a while, yes.

I have probably been out the UK too long.
I am foolishly contemplating taking the train from Manchester (airport) to Leeds for a meeting next week.
National rail inform me it will take at least 2 hours and cost anything from £10 to £40..
Half the trains have been replaced by buses.
It's 79km.
I could cycle it in about 4 hours.
#NorthernPowerhouse was just a big lie, wasn't it...

Minkowski-MambaNet: A Point Cloud Framework with Selective State Space Models for Forest Biomass Quantification
Jinxiang Tu, Dayong Ren, Fei Shi, Zhenhong Jia, Yahong Ren, Jiwei Qin, Fang He
https://arxiv.org/abs/2510.09367

Minkowski-MambaNet: A Point Cloud Framework with Selective State Space Models for Forest Biomass Quantification
Accurate forest biomass quantification is vital for carbon cycle monitoring. While airborne LiDAR excels at capturing 3D forest structure, directly estimating woody volume and Aboveground Biomass (AGB) from point clouds is challenging due to difficulties in modeling long-range dependencies needed to distinguish trees.We propose Minkowski-MambaNet, a novel deep learning framework that directly estimates volume and AGB from raw LiDAR. Its key innovation is integrating the Mamba model's Selective …

The current AI investment boom will spark a "wildfire" that wipes out some companies, yet bolsters and enables others by unlocking GPUs, energy, and talent (Dion Lim/CEO Dinner Insights)
https://ceodinner.substack.com/p/the-ai-wildfire-is-coming-its-going

The AI Wildfire Is Coming. It's Going to be Very Painful and Incredibly Healthy.
AI won’t crash—it will burn. Like every tech cycle, the fire will clear the brush, redistribute talent, and leave infrastructure to power what comes next. The question is: what kind of plant are you?

Correlated double ramification cycle formula
Thomas Blomme, Francesca Carocci
https://arxiv.org/abs/2509.24721 https://arxiv.org/pdf/2509.24721

Correlated double ramification cycle formula
We prove a refinement of Pixton's formula for the double ramification cycle with target variety which takes into account the correlator of a rubber map previously introduced by the authors. To do so, we need to: reinterpret the correlator in terms of (logarithmic) roots of the trivial line bundle; refine the natural stratification of the boundary of moduli of maps to keep track of how torsion line bundles on the target variety pull-back. We apply the refined DR cycle formula to compute 0-correl…

Downtown Fake London (Ontario) is weird. Some of it is exactly the automobile-infested hell that @… routinely describes. But there's still quite a few people out here walking and biking in spite of the inhospitable conditions.
There's some recently-built protected cycle tracks that make me wish I could bring a bicycle here on Via and toot around for an afternoon of coffee shops. The network is super not-complete though. 🤷🏼‍♀️🤷🏼‍♀️🤷🏼‍♀️
#BikeTooter #londonon

Study of the $^{20}$Ne($p,\gamma$)$^{21}$Na reaction at LUNA
A. Caciolli (on behalf of the LUNA collaboration)
https://arxiv.org/abs/2510.01884 https://arx…

Study of the $^{20}$Ne($p,γ$)$^{21}$Na reaction at LUNA
The NeNa-MgAl cycles are involved in the synthesis of Ne, Na, Mg, and Al isotopes. The $^{20}$Ne($p,γ$)$^{21}$Na (Q = 2431.68 keV) reaction is the first and slowest reaction of the NeNa cycle and it controls the speed at which the entire cycle proceeds. At the state of the art, the uncertainty on the 20Ne(p,γ)21Na reaction rate affects the production of the elements in the NeNa cycle. In particular, in the temperature range from 0.1 GK to 1 GK, the rate is dominated by the 366 keV resonance c…

This is the end-point of extractive AI. First get people to upload everything, then suck everything out of it, then get AI to generate all the answers. I wonder how this cycle continues. (If it means Chegg can't continue the cycle…paint me so sad.)

Improved Approximation for Broadcasting in k-cycle Graphs
Jeffrey Bringolf, Anne-Laure Ehresmann, Hovhannes A. Harutyunyan
https://arxiv.org/abs/2509.26426 https://

Improved Approximation for Broadcasting in k-cycle Graphs
Broadcasting is an information dissemination primitive where a message originates at a node (called the originator) and is passed to all other nodes in the network. Broadcasting research is motivated by efficient network design and determining the broadcast times of standard network topologies. Verifying the broadcast time of a node $v$ in an arbitrary network $G$ is known to be NP-hard. Additionally, recent findings show that the broadcast time problem is also NP-complete in general cactus gra…

Role of sunspot latitude versus tilt in determining the polar field and amplitude of the next cycle: Cause of the weak Solar Cycle 20
Bidisha Dey, Anu Sreedevi, Bidya Binay Karak
https://arxiv.org/abs/2509.17146

Role of sunspot latitude versus tilt in determining the polar field and amplitude of the next cycle: Cause of the weak Solar Cycle 20
One prominent feature of solar cycle is its irregular variation in its cycle strength, making it challenging to predict the amplitude of the next cycle. Studies show that fluctuations and nonlinearity in generating poloidal field throughout the decay and dispersal of tilted sunspots produce variation in the solar cycle. The flux, latitudinal position, and tilt angle of sunspots are the primary parameters that determine the polar field and, thus, the next solar cycle strength. By analysing the o…

Clapshot: open source browser-based media review like frame.io
https://cinelinux.com/en/2025/10/04/clapshot-a-alternativa-open-source-ao-frame-io-para-revisao-de-videos/
Haven't tested it yet, but the review seem…

Strong rumours of an end-of-cycle pattern club algorave at Sidney Matilda Sheffield on sun 14th December 2025

NeuroScalar: A Deep Learning Framework for Fast, Accurate, and In-the-Wild Cycle-Level Performance Prediction
Shayne Wadle, Yanxin Zhang, Vikas Singh, Karthikeyan Sankaralingam
https://arxiv.org/abs/2509.22410

NeuroScalar: A Deep Learning Framework for Fast, Accurate, and In-the-Wild Cycle-Level Performance Prediction
The evaluation of new microprocessor designs is constrained by slow, cycle-accurate simulators that rely on unrepresentative benchmark traces. This paper introduces a novel deep learning framework for high-fidelity, ``in-the-wild'' simulation on production hardware. Our core contribution is a DL model trained on microarchitecture-independent features to predict cycle-level performance for hypothetical processor designs. This unique approach allows the model to be deployed on existing silicon to…

2026 NFL head coach hiring cycle: 24 young candidates to know https://www.nfl.com/news/2026-nfl-head-coach-hiring-cycle-24-young-candidates-to-know

Richardson tableaux and Schubert positivity
Hunter Spink, Vasu Tewari
https://arxiv.org/abs/2510.12391 https://arxiv.org/pdf/2510.12391

Richardson tableaux and Schubert positivity
We compute the Schubert cycle expansion of those irreducible components of Springer fibers equal to Richardson varieties. This generalizes work of Güemes in the case of a hook shape and answers a question of Karp-Precup.

GATOS IX: A Detailed Assessment and Treatment of Emission Line Contamination in JWST/MIRI Images of Nearby Seyfert Galaxies
Steph Campbell, David J. Rosario, Houda Haidar, Enrique L\'opez Rodr\'iguez, Dan Delaney, Erin Hicks, Ismael Garc\'ia-Bernete, Miguel Pereira-Santaella, Almudena Alonso Herrero, Anelise Audibert, Enrica Bellocchi, Donaji Esparza-Arredondo, Santiago Garc\'ia-Burillo, Omaira Gonz\'alez Mart\'in, Sebastian F. H\"onig, Nancy A. Levenson, C…

GATOS IX: A Detailed Assessment and Treatment of Emission Line Contamination in JWST/MIRI Images of Nearby Seyfert Galaxies
Broadband mid-infrared (MIR) imaging with high spatial resolution is useful to study extended dust structures in the circumnuclear regions of nearby AGN. However, broadband imaging filters cannot distinguish dust continuum emission from emission lines, and so accounting for the emission line contamination becomes crucial in studying extended dust in these environments.This paper uses Cycle 1 MIR imaging from JWST/MIRI and spectroscopy from JWST/MRS for 11 local Seyfert galaxies, as part of the …

Essentially this is abusive behavior and the only way out is to break the cycle.
This doesn't preclude valid criticism, but each party in this must recognize that the other parties aren't them and do not have the same audiences, the same requirements for rigor, or the same style of communication.

CAPSim: A Fast CPU Performance Simulator Using Attention-based Predictor
Buqing Xu, Jianfeng Zhu, Yichi Zhang, Qinyi Cai, Guanhua Li, Shaojun Wei, Leibo Liu
https://arxiv.org/abs/2510.10484

CAPSim: A Fast CPU Performance Simulator Using Attention-based Predictor
CPU simulators are vital for computer architecture research, primarily for estimating performance under different programs. This poses challenges for fast and accurate simulation of modern CPUs, especially in multi-core systems. Modern CPU peformance simulators such as GEM5 adopt the cycle-accurate and event-driven approach, which is timeconsuming to simulate the extensive microarchitectural behavior of a real benchmark running on out-of-order CPUs. Recently, machine leaning based approach has …

🗜️ A Review of the Research and Development of Brayton Cycle Technology in Nuclear Power Applications with a Focus on Compressor Technology
#energy

Today in Focus: The World Cup’s Maga makeover
Episode webpage: https://www.theguardian.com/news/series/todayinfocus
Media file:

Far beyond the Sun: III. The magnetic cycle of $\boldsymbol\iota$ Horologii
Juli\'an D. Alvarado-G\'omez (Leibniz Institute for Astrophysics Potsdam, Germany), Gaitee A. J. Hussain (European Space Agency, The Netherlands), Eliana M. Amazo-G\'omez (Leibniz Institute for Astrophysics Potsdam, Germany), Yu Xu (Leibniz Institute for Astrophysics Potsdam, Germany, Peking University, China), Katja Poppenh\"ager (Leibniz Institute for Astrophysics Potsdam, Germany, Potsdam Un…

Far beyond the Sun: III. The magnetic cycle of $\boldsymbolι$ Horologii
We present a comprehensive investigation of the magnetic cycle of the young, active solar analogue $ι$ Horologii ($ι$ Hor) based on intensive spectropolarimetric monitoring using HARPSpol. Over a nearly three-year campaign, the technique of Zeeman-Doppler Imaging (ZDI) was used to reconstruct 18 maps of the large-scale surface magnetic field of the star. These maps trace the evolution of the magnetic field morphology over approximately 139 stellar rotations. Our analysis uncovers pronounced t…

"Glasgow City Council is currently consulting on active travel improvements around Thornwood Roundabout and National Cycle Network Route 7 (NCN7)."
#cycling

I’m tired of people who present themselves as understanding and supportive, only to prove through their actions that they were never sincere to begin with. They echo my thoughts, nod along to my frustrations, and talk about change as if it’s a shared goal, but when it comes time to make choices that reveal what they truly value, they always return to the same cycle. They buy from the same corporations, praise the same public figures, and engage with the same systems they once claimed to ques…

Completions of pairwise comparison data that minimize the triad measure of inconsistency
Susana Furtado, Charles Johnson
https://arxiv.org/abs/2510.12351 https://

Completions of pairwise comparison data that minimize the triad measure of inconsistency
We consider incomplete pairwise comparison matrices and determine exactly when they have a consistent completion and, if not, when they have a nearly consistent completion. We use the maximum 3-cycle product as a measure of inconsistency and show that, when the graph of the specified entries is chordal, a completion in which this measure is not increased is always possible. Methodology to produce such completions is developed. Such methodology may also be used to reduce inconsistency with few c…

The MIRI Excesses around Degenerates (MEAD) Survey I: A candidate cold brown dwarf in orbit around the nearby white dwarf 2MASS J09424023-4637176
Lo\"ic Albert (D\'epartement de Physique and Observatoire du Mont-M\'egantic, Universit\'e de Montr\'eal, Trottier Institute for Research on Exoplanets), Sabrina R. Poulsen (Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma), \'Erika Le Bourdais (D\'epartement de physique and Institut Trot…

The MIRI Excesses around Degenerates (MEAD) Survey I: A candidate cold brown dwarf in orbit around the nearby white dwarf 2MASS J09424023-4637176
The MIRI Excesses Around Degenerates Survey is a Cycle 2 James Webb Space Telescope (JWST) Survey program designed to image nearby white dwarfs in the mid-IR with the MIRI imaging mode. Only a handful of white dwarfs have previously been observed beyond 8~\micron. This survey gathered observations for 56 white dwarfs within 25~pc at 10 and 15~\micron, probing each white dwarf for unresolved IR excesses, IR flux deficits indicative of collision induced absorption, or resolved substellar companio…

"Apple Announces New Clean Energy Initiatives Across Europe and China"
#Europe #China #Apple #Energy

Apple Announces New Clean Energy Initiatives Across Europe and China
As part of Apple's goal to become carbon neutral across its entire business, manufacturing supply chain, and product life cycle by 2030, the...

Analyses of the Ancient Chinese Report on the Total #SolarEclipse in 709 BCE - Implications for the Contemporaneous Earth’s Rotation Speed and Solar Cycles: https://iopscience.iop.org/article/10.3847/2041-8213/ae0461 -> Humanity’s earliest datable record for a total solar eclipse allows scientists to derive accurate measurements of Earth’s ancient rotation speed and provides independent validation of solar cycle reconstruction in the 8th century BCE: https://en.nagoya-u.ac.jp/news/articles/historical-geography-helps-researchers-solve-2700-year-old-eclipse-mystery/

An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
Ivana Poljancic Beljan, Luka Sibenik, Tomislav Jurkic, Klaudija Loncaric, Rajka Jurdana-Sepic, Damir Hrzina, Werner Poetzi, Roman Brajsa, Astrid M. Veronig, Arnold Hanslmeier
https://arxiv.org/abs/2510.03002…

An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
We study solar differential rotation (DR) for solar cycle No. 19 (1954-1964) by tracing sunspot groups on the sunspot drawings of Kanzelhoehe Observatory for Solar and Environmental Research (KSO). Our aim is to extend previous DR analysis from the KSO data (1964-2016) to the years prior to 1964 to create a catalog of sunspot group positions and DR parameters from KSO sunspot drawings and white light images. Synodic angular rotation velocities were first determined using the daily shift (DS) an…

Bloomberg pumped $5M into anti-Mamdani super PACs this week, making him the cycle's largest donor (Chris Sommerfeldt/New York Daily News)
https://www.nydailynews.com/2025/10/31/bloomberg-pumped-5m-into-anti-mamdani-super-pacs-this-week-making-him-the-cycles-largest-donor/
http://www.memeorandum.com/251031/p95#a251031p95

The most probable order of a random permutation
Adrian Beker
https://arxiv.org/abs/2510.11698 https://arxiv.org/pdf/2510.11698

The most probable order of a random permutation
Given positive integers $n$ and $m$, let $p_n(m)$ be the probability that a uniform random permutation of $[n]$ has order exactly $m$. We show that, as $n \to \infty$, the maximum of $p_n(m)$ over all $m$ is asymptotic to $1/n$, the probability of an $n$-cycle. Furthermore, for sufficiently large $n$, we show that the maximum is attained precisely if $m$ is the least positive integer divisible by all positive integers less than or equal to $n-m$. This answers a question of Acan, Burnette, Eberh…

Magnetic Decay Index Profile and Coronal Mass Ejection Speed
Bernhard Kliem, Georgios Chintzoglou, Tibor T\"or\"ok, Jie Zhang
https://arxiv.org/abs/2510.11889 https://…

Magnetic Decay Index Profile and Coronal Mass Ejection Speed
We study the relationship between the speed of coronal mass ejections (CMEs) and the height profile of the ambient magnetic field, quantified by its decay index, n(h). Our sample is composed of 15 very fast CMEs (Vcme > 1500 km/s; all halo CMEs) and 22 halo CMEs below this speed limit from Solar Cycle 23. The very fast CMEs yield a high correlation of 0.81 between Vcme and the slope of n(h) in a height range above the onset height of the torus instability if one extremely fast outlier, which cl…

Closing paths to cycles in symmetric graphs
Martin Milani\v{c}, {\DJ}or{\dj}e Mitrovi\'c
https://arxiv.org/abs/2510.05404 https://arxiv.org/pdf/2510.05…

Closing paths to cycles in symmetric graphs
It was shown by Beisegel, Chudnovsky, Gurvich, Milanič, and Servatius in 2022 that every induced $2$-edge path in a vertex-transitive graph closes to an induced cycle. Similar results were obtained for 3-edge paths closing to cycles in edge-transitive graphs, where the cycle can be assumed to be induced if the path is induced. Motivated by these results, we consider the following problem: For a given class of graphs, determine all integers $\ell\geq 0$ such that for every graph in the class, e…

PAH Spectral Diversity in NGC 7027 and the Evolution of Aromatic Carriers
Charlotte Smith-Perez, Aidan Hembruff, Els Peeters, Alexander G. G. M. Tielens, Alessandra Ricca
https://arxiv.org/abs/2510.09972

PAH Spectral Diversity in NGC 7027 and the Evolution of Aromatic Carriers
Polycyclic Aromatic Hydrocarbons (PAHs) constitute a significant fraction of the Universe's carbon budget, playing a key role in the cosmic carbon cycle and dominating the mid-infrared spectra of astrophysical environments in which they reside. Although PAHs are known to form in the circumstellar envelopes of post-AGB stars, their formation and evolution are still not well-understood. We aim to understand how pristine complex hydrocarbons and PAHs in circumstellar environments transition to the…

Some bounds on the number of non isomorphic cyclic k-cycle systems of the complete graph
Lotrenzo Mella, Gloria Rinaldi
https://arxiv.org/abs/2509.24015 https://

Some bounds on the number of non isomorphic cyclic k-cycle systems of the complete graph
In a recent paper (2024) M. Buratti and M.E:Muzychuck have established some lower bounds on the number of non isomorphic cyclic Steiner Triple Systems of order $v\equiv 1$ (mod $6$). We complete their result to the case $v\equiv 3$ (mod $6$). For each odd $k > 3$ we also find lower bounds for the number of non isomorphic cyclic $k$-cycle systems of a complete graph.

A note on the distribution of the sum of lengths of the initial longest increasing sequences in cycles of random permutations
Ljuben Mutafchiev
https://arxiv.org/abs/2509.26129 …

A note on the distribution of the sum of lengths of the initial longest increasing sequences in cycles of random permutations
Let $S_n$ be the set of all permutations of $\{1,2,\ldots,n\}$ and let $σ=(σ_1,σ_2,\ldots,σ_n)\in S_n$. The {\it initial longest increasing sequence} (ILIS) in $σ$ has length $m$ if, for $1\le m\le n-1$, $σ_1<σ_2<\ldots<σ_m, σ_m>σ_{m+1}$, and has length $n$ if $σ=(1,2,\ldots,n)$. Let $l(σ)$ be the length of the ILIS in $σ$. We assume that $σ$ is represented in cycle notation, so that the first number in each cycle is the minimum number of this cycle. We also assume that $σ$ is ch…

Multi-spacecraft Measurements of the Evolving Geometry of the Solar Alfv\'en Surface Over Half a Solar Cycle
Samuel T. Badman, Michael L. Stevens, Stuart D. Bale, Yeimy J. Rivera, Kristopher G. Klein, Tatiana Niembro, Rohit Chhiber, Ali Rahmati, Phyllis L. Whittlesey, Roberto Livi, Davin E. Larson, Christopher J. Owen, Kristoff W. Paulson, Timothy S. Horbury, Jean Morris, Helen O'Brien, Jean-Baptiste Dakeyo, Jaye L. Verniero, Mihailo Martinovic, Marc Pulupa, Federico Fraschetti…

Multi-spacecraft Measurements of the Evolving Geometry of the Solar Alfvén Surface Over Half a Solar Cycle
The geometry of a star's Alfvén surface determines stellar angular momentum loss, separates a causally distinct 'corona' and stellar wind, and potentially affects exoplanetary habitability. The solar Alfvén surface is the only such structure that is directly measurable and since 2021, has been routinely measured in situ by NASA's Parker Solar Probe (Parker). We use these unique measurements in concert with Solar Orbiter and L1 in situ data spanning the first half of the Solar Cycle 25 in time…