Tootfinder

Generation of a CW anti-bunched photon field from a thin-film PPLN waveguide by two-photon interference with a weak coherent state
Yue Li, Haochuan Li, Yuhang Lei, Xiaoting Li, Jianmin Wang, Xuan Tang, Mu Ku Chen, E. Y. B. Pun, Cheng Wang, Z. Y. Ou
https://arxiv.org/abs/2508.10135

Generation of a CW anti-bunched photon field from a thin-film PPLN waveguide by two-photon interference with a weak coherent state
An anti-bunched photon field is produced from a thin-film ppln waveguide by mixing the on-chip two-photon state with a weak but matched coherent state. This is achieved by taking out the two-photon part of the coherent state via a destructive two-photon interference with the on-chip two-photon state. We achieve a photon rate of 100 kHz with a g2-value of 0.35. This anti-bunched light field will have applications in high-resolution quantum imaging such as long baseline quantum telescopy for enha…

pretty good comic anthology
cw for a lil bit of everything really
https://drive.google.com/file/d/19-XGkq7oA1r833EQh8NV05EevBVcAnBe/view?usp=sharing

Ok #osint #geolocation folks...
1) What is this building?
2) Where was I standing?
3) What is the antenna mast on top for? Can you identify the exact license, frequency band, etc?
CW guesses or answers to avoid spoilers.

Keep Calm and Avoid Harmful Content: Concept Alignment and Latent Manipulation Towards Safer Answers
Ruben Belo, Claudia Soares, Marta Guimaraes
https://arxiv.org/abs/2510.12672

Keep Calm and Avoid Harmful Content: Concept Alignment and Latent Manipulation Towards Safer Answers
Large Language Models are susceptible to jailbreak attacks that bypass built-in safety guardrails (e.g., by tricking the model with adversarial prompts). We propose Concept Alignment and Concept Manipulation \textbf{CALM}, an inference-time method that suppresses harmful concepts by modifying latent representations of the last layer of the model, without retraining. Leveraging \gls*{cw} technique from Computer Vision combined with orthogonal projection, CALM removes unwanted latent directions a…

Nudez completa sem CW na linha global. Hš muito tempo que eu não vejo isso, o CW neste tipo de imagem quase todo mundo respeita.

Replaced article(s) found for math.AT. https://arxiv.org/list/math.AT/new
[1/1]:
- A note on noncommutative CW-spectra
Thomas Blom
https://

Johnson backs Virginia wind project in break with Trump - Live Updates - POLITICO
https://www.politico.com/live-updates/2025/09/10/congress/johnson-backs-virginia-wind-project-in-break-with-trump-cw-00554569

The ARRL has a long online text band plan which they have condensed for HF into The Considerate Operator's Frequency Guide which is not really in a convenient form to print and carry with you into the field when operating portable

Heralded Emission Detection in Quantum Dot Solids under Twin-Photon Excitation
Chieh Tsao, Xiang Li, Alex Hinkle, Yifan Chen, Elvar Oskarsson, Uri Banin, Hendrik Utzat
https://arxiv.org/abs/2509.11704 …

Heralded Emission Detection in Quantum Dot Solids under Twin-Photon Excitation
Harnessing quantum correlations between photons is an emerging direction in optical spectroscopy, but experimental progress has thus far been limited to fluorescence-detected studies of molecular systems at room temperature. Here, we demonstrate heralded emission detection (HED) under continuous-wave (CW) entangled-photon excitation of near-infrared (NIR)-emitting colloidal III-V quantum dots (QDs) at low temperatures. We use superconducting nanowire single-photon detectors (SNSPDs) and large-a…

I remember a video getting recommended to me, after I got shot of course, about what it felt like to get shot. It completely missed the point.
I woke up in the middle of the night and wrote most of this around 4 in the morning.
CW: gun violence, body horror, etc.
https://write.as/hexmhell/echos

Just finished "Beasts Made of Night" by Tochi Onyebuchi...
Indirect CW for fantasy police state violence.
So I very much enjoyed Onyebuchi's "Riot Baby," and when I grabbed this at the library, I was certain it would be excellent. But having finished it, I'm not sure I like it that much overall?
The first maybe third is excellent, including the world-building, which is fascinating. I feel like Onyebuchi must have played "Shadow of the Colossus" at some point. Onyebuchi certainly does know how to make me care for his characters.
Some spoilers from here on out...
.
.
.
I felt like it stumbles towards the middle, with Bo's reactions neither making sense in the immediate context, nor in retrospect by the end when we've learned more. Things are a bit floaty in the middle with an unclear picture of what exactly is going on politics-wise and what the motivations are. Here I think there were some nuances that didn't make it to the page, or perhaps I'm just a bit thick and not getting stuff I should be? More is of course revealed by the end, but I still wasn't satisfied with the explanations of things. For example, (spoilers) I don't feel I understand clearly what kind of power the army of aki was supposed to represent within the city? Perhaps necessary to wield the threat of offensive inisisia use? In that case, a single scene somewhere of Izu's faction deploying that tactic would have been helpful I think.
Then towards the end, for me things really started to jumble, with unclear motivations, revelations that didn't feel well-paced or -structured, and a finale where both the action & collapsing concerns felt stilted and disjointed. Particularly the mechanics/ethics of the most important death that set the finale in motion bothered me, and the unexplained mechanism by which that led to what came next? I can read a couple of possible interesting morals into the whole denouement, but didn't feel that any of them were sufficiently explored. Especially if we're supposed to see some personal failing in the protagonist's actions, I don't think it's made clear enough what that is, since I feel his reasons to reject each faction are pretty solid, and if we're meant to either pity or abjure his indecision, I don't think the message lands clearly enough.
There *is* a sequel, which honestly I wasn't sure of after the last page, and which I now very interested in. Beasts is Onyebuchi's debut, which maybe makes sense of me feeling that Riot Baby didn't have the same plotting issues. It also maybe means that Onyebuchi couldn't be sure a sequel would make it to publication in terms of setting up the ending.
Overall I really enjoyed at least 80% of this, but was expecting even better (especially politically) given Onyebuchi's other work, and I didn't feel like I found it.
#AmReading

Digital Low-Level RF system for the Linac Electronics Modernization Plan at LCLS
Nashat Sawai, Jorge Diaz Cruz, Andy Benwell, Sonya Hoobler, Qiang Du, Shreeharshini Murthy, Larry Doolittle
https://arxiv.org/abs/2510.11950

Digital Low-Level RF system for the Linac Electronics Modernization Plan at LCLS
The LCLS began operations in 2009, utilizing SLAC's normal-conducting (NC) LINAC, which features control equipment dating back to the 1960s and 1980s. The Linac Electronics Modernization Plan (LEMP) aims to replace the legacy control equipment with a system based on the open-source Marble carrier board and Zest+ digitizer board, both of which are used in the LCLS-II HE LLRF system. Adaptation of the LLRF system developed for the continuous-wave (CW) superconducting RF (SRF) LCLS-II to the short…

I wonder why? Could it be a mediocre overpriced product? Could it be all the BS naming?
I haven't gone there for years for those reasons, and I don't want to wait 10-15 minutes when I can patronize a small business that makes fresh and great coffee that costs less (and much faster service too)
https://flip.it/FiH-cW

bitches on fedi will cw the most innocuous posts with "what" or "incoherent" or some other no self-confidence bullshit

According to capitalists:
✅ Working for a company like Google or Microsoft that is complicit in genocide.
❌ Displaying images of the genocide.
Maybe if the consequences of your work are considered “Not Safe For Work”, you shouldn’t be doing that work in the first place.*
But, no, it’s just much easier to look away, isn’t it? After all, you’re just following orders, right?
* Update: because I just *know* that someone will pipe in maliciously with “oh, so you mean…

Learning to detect continuous gravitational waves: an open data-analysis competition
Rodrigo Tenorio, Michael J. Williams, Joseph Bayley, Christopher Messenger, Maggie Demkin, Walter Reade, Kaggle Competitors
https://arxiv.org/abs/2509.06445

Learning to detect continuous gravitational waves: an open data-analysis competition
We report results of a public data-analysis challenge, hosted on the open data-science platform Kaggle, to detect simulated continuous gravitational-wave signals. These are weak signals from rapidly spinning neutron stars that remain undetected despite extensive searches. The competition dataset consisted of a population of CW signals using both simulated and real LIGO detector data matching the conditions of actual CW searches. The competition attracted more than 1,000 participants to develop …

Day 16: Mayra Cuevas & Marie Marquardt
Okay so this is cheating, but they're co-authors of multiple books together, and there's no way for me to separate their contributions... I've already got too many authors I'd like to list, so why not?
I read their book "Does My Body Offend You?" and absolutely loved it; it's a celebration of teen activism while also being a deep exploration of feminist issues through practical situations that bring out the complicated side of things, which the authors refuse to reduce back to a simple formulaic answer. It has a supporting cast of appropriately-complex male characters that help in exploring the nuances of issues like the line between female empowerment & male gratification, and it brings race and macho culture into the conversion as well.
CW for sexual harassment & deep discussion of the resultant trauma.
I'll cheat again here to sneak in mention of two male authors whose work resonates with theirs: Mark Oshiro's "Anger is a Gift" has a more pessimistic/complex take on teen activism along with a gay romance (CW for racist cop murder), while Jeremy Whitley's graphic novel "Navigating With You" deals with queer romance & disability, while having a main character pairing that echoes those from "Does My Body Offend You?" in a lot of ways. Another connection (to non-men authors this time) is with "Go With the Flow" by Lily Williams and Karen Schneemann. Their graphic novel about teen activism and periods is a bit more didactic and has a much lighter tone, but it does necessarily have some overlapping themes.
To bring it back to Cuevas & Marquhardt, their writing is great and their ability to discuss such complex topics with such nuance, all wrapped up in a story that feels completely natural, is amazing to me, and makes their book feel like one of the most valuable to recommend to others.
In writing this I've realized a grave oversight in the list so far that I'll have to correct tomorrow, but I'm quickly running out of days. The didn't-quite-make-it list is going to be full of more excellent authors, and I'm honestly starting to wonder whether it might actually be harder to name 20 male authors I respect now that I've found the sense to be mostly somewhere between disgusted and disappointed with so many of the male authors I enjoyed as a teen.
#20AuthorsNoMen (cheating a bit)

¡Bienvenidas todas las personas que vienen llegando a Mastodon! Para una mejor convivencia solo debes seguir los 437 pasos que se indican a continuación y opcionalmente, pero muy recomendado, leer las 4.723 paginas de la guía ršpida de bienvenida al fediverso e introducción al protocolo activitypub, estšndar de la W3C. ¡Ah! Y no olviden poner alt y usar CW.
Disfruten su estadía ✌🏻

Fiber-optic power limiter device based on carbon nanotubes
Ekaterina Borisova, Anastasiya Ponosova, Natalia Arutyunyan, Alexey Shilko, Elena Obraztsova, Boris Galagan, Vadim Makarov
https://arxiv.org/abs/2510.09301

Fiber-optic power limiter device based on carbon nanotubes
We experimentally demonstrate a power limiter based on single-walled carbon nanotubes dispersed in a polymer matrix. This simple fiber-optic device permanently increases its attenuation when subjected to 50-mW or higher cw illumination at 1550 nm and initiates a fiber-fuse effect at 1 to 5 W. It may be used for protecting quantum key distribution equipment from light-injection attacks. We demonstrate its compatibility with phase- and polarisation-encoding quantum key distribution systems.

On-chip room-temperature CW lasing from a III-V nanowire integrated with a Si photonic crystal platform
Masato Takiguchi, Takuro Fujii, Hisashi Sumikura, Akihiko Shinya, Shinji Matsuo, Masaya Notomi
https://arxiv.org/abs/2510.05477

On-chip room-temperature CW lasing from a III-V nanowire integrated with a Si photonic crystal platform
We report the demonstration of continuous-wave (CW) lasing at room temperature from a III-V semiconductor nanowire integrated into a Si photonic crystal (PhC) cavity. Conventional hybrid nanowire lasers [M. Takiguchi. et.al., APL Photonics, 2, 046106 (2017)], which typically feature circular nanowire-cross-sections, suffer from a weak optical confinement, preventing CW lasing under ambient conditions. To overcome this limitation, we fabricated nanowires with rectangular cross-sections via dry e…

Today's #HamRadio #POTA CW activation of US-3847 Occoneechee Mountain Natural State Conservation Area (four hunting park-to-park QSOs, six running calling CQ) along with tonight's SST together made a milestone for me: Now 75% of all my logged QSOs are Morse code.
I still marvel t…

Leute, ab in die Stadien der #ErimaGFL zum #AmericanFootball! Grüße aus D-Dorf aus dem #Panther Gehege - ich würde es den

Every year, as I come up on my birthday, I start to think a lot more about the shooting. The intensity was a bit lower after Trump left office the first time, but October of 2024 was pretty intense.
As I've been processing through all this, I thought about the cards and letters folks sent to me in the hospital. I have a box of them in the US and sometimes I think about asking for them to be sent here. But things have a tenancy to get lost in the mail on the way here.
There's a little bit of a trapped and incomplete feeling, that Trump's chaos makes feel even more intense.
So I decided to write a bit about that box, and the hospital, and death.
CW: body horror, death
#Writing

This has been in the to-do list for years.
Yes, custom emojis work inside CW and poll fields :blobpeek:
#PhanpySocialDev

@… I am sorry. someone else requested I CW next time

Understanding the well-rounded deformation retraction of Teichm\"uller space
Ingrid Irmer
https://arxiv.org/abs/2509.06339 https://arxiv.org/pdf/2509.…

Understanding the well-rounded deformation retraction of Teichmüller space
In [10] it was shown that there is a mapping class group-equivariant deformation retraction of the Teichmüller space of a closed surface onto a CW complex with dimension equal to the virtual cohomological dimension of the mapping class group. This paper studies the image of this deformation retraction and shows that when the analogy with the well-rounded deformation retraction of $SL(n,\mathbb{Z})$ is defined correctly via a notion of duality, this deformation retraction is analogous to the we…

Drilling for #AmateurRadio #POTA, I cranked the Morse Walker noise up to "heavy" and was surprised when I heard only one caller when the counter said I had two. The other was literally lost in the noise.…

Don’t post about snuff without CW challenge

Exotic presentations of quaternion groups and Wall's D2 problem
Tommy Hofmann, John Nicholson
https://arxiv.org/abs/2507.15999 https://arxiv.org/pdf/25…

Exotic presentations of quaternion groups and Wall's D2 problem
The D2 problem of C. T. C. Wall asks whether every finite cohomologically 2-dimensional CW-complex is homotopy equivalent to a finite 2-complex. Several potential counterexamples have been proposed, the longest standing of which is a CW-complex constructed by Cohen and Dyer whose fundamental group is a quaternion group of order 32. We show that this CW-complex is homotopy equivalent to the presentation 2-complex of a presentation constructed by Mannan-Popiel, thus showing it is not a counterexa…

Day 18: Mark Oshiro
Having just learned that Oshiro is nonbinary, they're an instant include on this list. In veering extremely heavily towards YA, and losing a spot that would have gone to an absolutely legendary mangaka, anime writer, or feminist philosopher, but "Anger is A Gift" and "Each of us a Desert" are just that good, and I'm trying to steer a bit towards towards lesser-known authors I respect.
I already mentioned "Anger is a Gift" above, but to recap, it's a painful, vivid, and beautifully honest story of queer love, loss, and protest against an oppressive system. CW for racist police murder, intergenerational trauma, and police brutality against highschool students. It's a book a lot of Americans could benefit from reading right now, and while it's fiction, it's not fantasy or sci-fi. Besides the themes and politics, the writing is just really solid, with delicate characterization and tight-plotted developments that are beautifully paced.
To me "Each of us a Desert" is maybe even more beautiful, and Oshiro leaps into a magnificent fantasy world that's richly original in its desolation, dark history, lonely characters, and mythical magic. Particularly the clearly-not-just-superscription but ambiguously-important/powerful magical elements of Oshiro's worldbuilding are a rare contrast to the usual magic-is-real-here's-how-it-works fare, and pulling that off a all as they do is a testament to their craft. The prose is wonderful, probably especially so if you speak Spanish, but I enjoyed it immensely despite only knowing a few words here and there. The rich interiority of the characters, their conflicts both with each other and within themselves, and the juxtaposition of all that against origins in cult-like ignorance allows for the delivery of a lot of wisdom and complex truths.
Between these two books, so different and yet each so powerful, Oshiro has demonstrated incredible craft and also a wide range of styles, so I'm definitely excited to read more of their work and to recommend them to others.
I'm also glad to have finally put a nonbinary author on this list; the others I had in mind won't make it at this point because there's too much genre overlap, although I'll include them in my didn't-make-it list at the end. I've now got just 2 slots left and have counted up 14 more authors that absolutely need to be mentioned, so we'll see what happens.
#20AuthorsNoMen

Note to self: remember that content warnings don't exist in Bluesky, so you may want to think if you want to bridge stuff you'd put here on the Fediverse under a CW.

Day 17 (oops; a bit early): Angie Thomas
Can hardly believe it's taken me this long to get to Thomas, and I haven't even read "The Hate You Give" which is probably her most popular book. I did read "Concrete Rose" and was duly blown away by her craft: the use of vernacular, the love she has for the community she writes about, the honesty with which she grapples with the bleak details of the setting, and her stubborn and inescapable portrayal of a human being where our society has taught us to see only perpetrators and victims. CW for family member death and gun violence that I can think of; it's not light reading.
As the parent of two children, Thomas' descriptions of baby care ring true, and drew me into the book more than any other factor, and her vision of a positive masculinity among so much pain is breathtaking. "Concrete Rose" is a brilliant novel, and Thomas richly deserves a spot on this list.
#20AuthorsNoMen

Today is my "hamiversary" — Today last year, the wheels at the FCC turned and I was awarded the #AmateurRadio call sign KZ4LY.
Today I celebrated by going to park US-2755 after work and doing some QRP CW #POTA.
I was in a hurry and missed disconnecting the 20m link on t…

🇺🇦 #NowPlaying on KEXP's #SoundsOfSurvivance
CW Ayon:
🎵 Bounce, Boogie, and Bump
#CWAyon
https://cwayon.bandcamp.com/album/bounce-boogie-bump
https://open.spotify.com/track/6vl9GFjDlZznI7iNRrPBYV

Fat Shellable Spheres
Joshua Hinman
https://arxiv.org/abs/2509.20771 https://arxiv.org/pdf/2509.20771

Fat Shellable Spheres
The fatness of a 4-polytope or 3-sphere is defined as $(f_1+f_2-20)/(f_0+f_3-10)$. We construct arbitrarily fat, strongly regular CW 3-spheres that are both shellable and dual shellable. These spheres have $f$-vectors $(Θ(n),Θ(nα(n)),Θ(nα(n)),Θ(n))$, where $α$ is the inverse Ackermann function.

Conditionally Whitened Generative Models for Probabilistic Time Series Forecasting
Yanfeng Yang, Siwei Chen, Pingping Hu, Zhaotong Shen, Yingjie Zhang, Zhuoran Sun, Shuai Li, Ziqi Chen, Kenji Fukumizu
https://arxiv.org/abs/2509.20928

Conditionally Whitened Generative Models for Probabilistic Time Series Forecasting
Probabilistic forecasting of multivariate time series is challenging due to non-stationarity, inter-variable dependencies, and distribution shifts. While recent diffusion and flow matching models have shown promise, they often ignore informative priors such as conditional means and covariances. In this work, we propose Conditionally Whitened Generative Models (CW-Gen), a framework that incorporates prior information through conditional whitening. Theoretically, we establish sufficient condition…

I don't know what to say about this new Mortal Kombat trailer (cw: gore). I've played the original game back when it was forbidden in Germany due to the violence.
This latest incarnation seems to push the right buttons for some fans. To me it just looks like obvious CGI gore and camera moves. Somebody is saying a line from the original video game. But what else can you do with this franchise? This is probably true to form.

On operation and control of CW magnetrons for superconducting accelerators
G. Kazakevich, R. P. Johnson, I. Gonin, V. Yakovlev, Ya. Derbenev, H. Wang
https://arxiv.org/abs/2507.22215

On operation and control of CW magnetrons for superconducting accelerators
CW magnetrons, developed for industrial RF heaters, were suggested to feed RF cavities of superconducting accelerators due to higher efficiency and lower cost of RF power than provide traditionally used klystrons, IOTs or solid-state amplifiers. RF amplifiers driven by a master oscillator serve as coherent RF sources. CW magnetrons are regenerative RF auto generators with a huge regenerative gain. This causes regenerative instability with a notable noise when a magnetron operates as an auto gen…

You know those dreams where you're trying to scream, but no matter how much effort you put in you can't make any noise?
Cw: collapse and despair
#Poetry #ClimateChange

Self-cooling, blue-detuned dissipative Kerr microresonator soliton comb
Kenji Nishimoto, Kaoru Minoshima, Naoya Kuse
https://arxiv.org/abs/2508.00432 https://

Self-cooling, blue-detuned dissipative Kerr microresonator soliton comb
Dissipative Kerr solitons (DKSs) generated in high-Q microresonators driven by continuous-wave (CW) lasers provide chip-scale optical frequency combs composed of mutually coherent CW lines. However, their small mode volume makes them highly susceptible to thermal fluctuations, and the resulting thermo-refractive noise (TRN) perturbs the repetition rate $f_{\rm rep}$. Here, we experimentally demonstrate a blue-detuned DKS in a coupled-ring microresonator. By employing avoided-mode-crossing (AMX)…

Day 14: Zoulfa Katouh
Her book "As Long as the Lemon Trees Grow" was gripping, devastating, and beautiful (CW for Syrian civil war, war crimes, death of family/kids). It's also somehow a halal romance, it has an incredible twist, and it engages deeply with trauma, fear, and surrounding compulsions.
I've read several graphic novels recently that focused on the plight of refugees, but none have gone as deep into the horrors of war, nor have they navigated the complexities of the choice to flee from a cause you believe in so well. Reading this book after the fall of Assad certainly feels different, even though the ultimate outcome in Syria still seems like it is in flux and a second dictatorship seems possible. It also serves as a grim look at what might be ahead for the US given current events.
#20AuthorsNoMen

Homotopy classification of $S^{2k-1}$-bundles over $S^{2k}$
Zhongjian Zhu, Jianzhong Pan
https://arxiv.org/abs/2508.14341 https://arxiv.org/pdf/2508.14341

Homotopy classification of $S^{2k-1}$-bundles over $S^{2k}$
In this paper, we classify the homotopy types of the total spaces of $S^{2k-1}$-bundles (or fibrations) over $S^{2k}$ for $2\leq k\leq 6$ by listing the attaching map of the top cell of these as CW-complexes. The method is using the new necessary and sufficient conditions we gave in our previous work to determine whether a CW complex has the homotopy type of total space of these sphere bundles.

The NANOGrav 15 yr Data Set: Targeted Searches for Supermassive Black Hole Binaries
Nikita Agarwal, Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Jeremy G. Baier, Paul T. Baker, Bence Becsy, Laura Blecha, Adam Brazier, Paul R. Brook, Sarah Burke-Spolaor, Rand Burnette, Robin Case, J. Andrew Casey-Clyde, Yu-Ting Chang, Maria Charisi, Shami Chatterjee, Tyler Cohen, Paolo Coppi, James M. Cordes, Neil J. Cornish, Fronefield Crawford, H. Thankful Cromartie, Kat…

The NANOGrav 15 yr Data Set: Targeted Searches for Supermassive Black Hole Binaries
We present the first catalog of targeted searches for continuous gravitational waves (CWs) from 114 active galactic nuclei (AGN) that may host supermassive black hole binaries (SMBHBs), using the NANOGrav 15 yr data set. By incorporating electromagnetic priors on sky location, distance, redshift, and CW frequency, our strain and chirp mass upper limits are on average 2.6$\times$ more constraining than sky-averaged limits. Bayesian model comparisons against a common uncorrelated red noise for th…

Investigating Hardware Injections in LIGO O3 Data: Simulated Signals from a Neutron Star in a Low-Mass X-ray Binary
Jediah Tau, John T. Whelan
https://arxiv.org/abs/2509.00907 h…

Investigating Hardware Injections in LIGO O3 Data: Simulated Signals from a Neutron Star in a Low-Mass X-ray Binary
During LIGO s third observing run (O3), simulated continuous gravitational wave (CW) signals were added to the detectors via hardware (HW) injections, which are physical injections into the interferometer control loop. These included two periodic signals mimicking a spinning neutron star in a binary system, similar to the low-mass X-ray binary Scorpius X-1 (Sco X-1). HW injections serve as an important validation of a search method, as they occur before data cleaning and preparation. We searche…

Today's #HamRadio adventures... My oldest and I went to do #POTA together. He's a technician, and 10m was mostly dead where we were, except for a booming SSB QSO with California to a club doing the CA QSO party, so he didn't get his 10 today.
I started running CW QRP (5W) on on 1…

Optimization of continuous-wave NIRS devices for placental monitoring. A simulation study
Charly Caredda, Fr\'ed\'eric Lange, Uzair Hakim, Niccole Ranaei-Zamani, Anna L David, Dimitrios Siassakos, Rosalind Aughwane, Sara Hillman, Olayinka Kowobari, Subhabrata Mitra, Ilias Tachtsidis
https://arxiv.org/abs/2508.13689

Optimization of continuous-wave NIRS devices for placental monitoring. A simulation study
Near infrared spectroscopy (NIRS) is an optical technique that is widely used to monitor tissue oxygenation. These devices take advantage of the near infrared light to monitor deep tissues like brain, muscle or placenta. In this study, we developed a Monte Carlo framework to evaluate the sensitivity of continuous-wave (CW) NIRS devices for monitoring the placenta which a deep layer in the maternal abdomen. This framework can be used to optimize CW-NIRS acquisition parameters (integration time, …

🇺🇦 #NowPlaying on #BBC6Music's #ThePeoplesParty with #AFRODEUTSCHE
Gabriels:
🎵 Love and Hate (Greg Wilson and Che Wilson Remix)
#Gabriels
https://chriswoodward007.bandcamp.com/track/gabriels-love-and-hate-cw-danceteria-rerub-remix

Optimal Rates for Ergodic SDEs Driven by Multiplicative $\alpha$-Stable Processes in Wasserstein-1 distance
Xinghu Jin, Xiaolong Zhang
https://arxiv.org/abs/2509.13014 https://

Optimal Rates for Ergodic SDEs Driven by Multiplicative $α$-Stable Processes in Wasserstein-1 distance
This paper establishes the quantitative stability of invariant measures $μ_α$ for $\mathbb{R}^d$-valued ergodic stochastic differential equations driven by rotationally invariant multiplicative $α$-stable processes with $α\in(1,2]$. Under structural assumptions on the coefficients with a fixed parameter vector $\bmθ$, we derive optimal convergence rates in the Wasserstein-$1$ ($\cW_{1}$) distance between the invariant measures introduced above, namely, \item[(i)] For any interval $[α_0,…

🇵🇱 Cześć! Jestem Łukasz. Trójka z przodu. Warszawa. Na fedi mniej-więcej od 2021 r. Łączę dwa konta w jedno i od tej pory będzie tu więcej polskojęzycznych postów (a jeśli obserwowałxś mnie na polskojęzycznym koncie, to dostaniesz więcej treści po angielsku 😄).
Mam kilka równoległych żyć.
Przez większość czasu buduję rzeczy w internetach, głównie z użyciem TypeScriptu, Reacta i całej reszty tego jazzu. Ciągle jednak lubię generatory stron statycznych i stary dobry HTML/CSS.
W innym życiu jestem fotografem-dokumentalistą i fotoreporterem. Interesuje mnie aktywizm, sztuka, kultura, polityka oraz wszystko, co jest ciekawe, a dzieje się na ulicach miast. Dużo uwagi poświęcam protestom i demonstracjom w Polsce, zwłaszcza dotyczącym praw człowieka i kwestii społecznych. Interesuje mnie też sztuka uliczna, zwłaszcza taka, która niesie ze sobą mocne komunikaty.
Zdarza mi się blogować i tłumaczyć teksty. Wiele lat temu napisałem dwie książki o WordPressie. Obecnie jednak wolę gdzieś wyjść niż spędzać jeszcze więcej czasu przed ekranem.
Okazjonalnie zdarza mi się postować o zdrowiu psychicznym i polityce. Staram się używać CW kiedy to możliwe.
Postuję po polsku i angielsku w zależności od tematu.
No i... chyba tyle. Miło Cię widzieć!
#introduction #witajswiecie #przywitanie #wprowadzenie

Since leaving the US, things have gotten a lot better for me but it's still hard existing under capitalism. Just being a human is hard enough, but parenting is an order or magnitude harder.
Even here, with all the complexity of being an immigrant, it's somehow still less emotionally challenging than being in the US.
I wrote up a reflection on some of my feelings before leaving tangled up with some of the challenges I still have. I hope this helps some folks feel less alone, or makes it easier for other folks to understand why some parents are having a hard time.
CW: just.... Lots... Death, gun violence, trauma, etc
#USPol

Swan modules and homotopy types after a single stabilisation
Tommy Hofmann, John Nicholson
https://arxiv.org/abs/2507.21975 https://arxiv.org/pdf/2507.2197…

Swan modules and homotopy types after a single stabilisation
We study Swan modules, which are a special class of projective modules over integral group rings, and their consequences for the homotopy classification of CW-complexes. We show that there exists a non-free stably free Swan module, thus resolving Problem A4 in the 1979 Problem List of C. T. C. Wall. As an application we show that, in all dimensions $n \equiv 3$ mod $4$, there exist finite $n$-complexes which are homotopy equivalent after stabilising with multiple copies of $S^n$, but not after …

The configuration functor of a punctured space
Eduard Looijenga, Andreas Stavrou
https://arxiv.org/abs/2507.14366 https://arxiv.org/pdf/2507.14366

The configuration functor of a punctured space
Let $U$ be a space whose one point compactification $U^*$ is a CW-complex for which the added point $*$ is the only $0$-cell. We observe that the configuration space $Conf_n(U)$ of $n$ numbered distinct points in $U$ has no closed support homology in degree $

#HamRadio achievement unlocked!
I have previously successfully activated #POTA parks by "hunting" CW (answering people in other parks calling out to connect to anyone who can hear them), and by calling CQ on SSB (using voice to call out for any station to come back to me) as well…

Observation of tuning properties in a doubly resonant backward optical parametric oscillator
Ming-Yuan Gao, Yue-Wei Song, Zhi-Cheng Guo, Yin-Hai Li, Zhi-Yuan Zhou, Bao-Sen Shi
https://arxiv.org/abs/2509.20925

Observation of tuning properties in a doubly resonant backward optical parametric oscillator
Doubly resonant optical parametric oscillators (OPOs) under continuous wave (CW) pumping are particularly notable for their low threshold and narrow linewidth. Backward OPOs (BOPOs) realized through backward quasi-phase matching which exhibit unique tuning properties compared with conventional forward OPOs have been demonstrated under pulse pumping. In this work, a doubly resonant BOPO was implemented in a semi-monolithic cavity under CW pumping, and its tuning properties were characterized. By…

Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors
Maria Ana Pereira, Mingsong Wu, Arslan Sajid Raja, Rui Ning Wang, Tobias Kippenberg, Hugo Zbinden, Tiff Brydges, Rob Thew
https://arxiv.org/abs/2509.16049

Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors
We introduce a simple and flexible concept for a heralded -- spectrally pure -- single photon source. The scheme uses a probabilistic photon pair source pumped with a CW laser, whereby a rapid gating InGaAs/InP single photon avalanche diode provides a synchronous clock and temporally resolves, and hence spectrally filters, the heralded photons. We demonstrate the concept by combining this with a narrow-band integrated silicon nitride photon-pair source. This simple architecture is capable of he…

Just finished "Concrete Rose" by Angie Thomas (I haven't yet read "The Hate U Give" but that's now high on my list of things to find). It's excellent, and in particular, an excellent treatise on positive masculinity in fiction form. It's not a super easy book to read emotionally, but is excellently written and deeply immersive. I don't have the perspective to know how it might land among teens like those it portrays, but I have a feeling it's true enough to life, and it held a lot of great wisdom for me.
CW for the book include murder, hard drugs, and parental abandonment.
I caught myself in a racist/classist habit of thought while reading that others night appreciate hearing about: early on I was mentally comparing it to "All my Rage" by Sabaa Tahir and wondering if/when we'd see the human cost of the drug dealing to the junkies, thinking that it would weaken the book not to include that angle. Why is that racist/classist? Because I'm always expecting books with hard drug dealers in them to show the ugly side of their business since it's been drilled into me that they're evil for the harm they cause, yet I never expect the same of characters who are bankers, financial analysts, health insurance claims adjudicators, police officers, etc. (Okay, maybe I do now look for that in police narratives). The point is, our society includes many people who as part of their jobs directly immiserate others, so why and I only concerned about that misery being brought up when it's drug dealers?
#AmReading

On the attaching map of the 3-cell skeleton of the homotopy fibre
Juxin Yang, Fengchun Lei, Jingyan Li, Jie Wu
https://arxiv.org/abs/2509.21444 https://arx…

On the attaching map of the 3-cell skeleton of the homotopy fibre
Localize spaces at 2. Let $f\inπ_{n+k}(S^{n})$, ($n\geq2$ and $k\geq0$) and let $F$ be the homotopy fibre of the pinch map $ΣC_{f}=S^{n+1}\cup e^{n+k+2} \rightarrow S^{n+k+2}$, (in the case $k=0$, further assume $ΣC_{f}\not\Simeq*$). As a type of Gray's relative James constructions, it is known that $ F$ has a CW decomposition $F=(S^{n+1}\cup_{\af} e^{2n+k+2})\cup_β e^{3n+2k+3}\cup \cdots$, where $\af=[1_{S^{n+1}},\s f]\inπ_{n+k+1}(S^{n})$ is the Whitehead product and $β$ is a higher Whit…

I think I need to clarify some shit for (white) liberals.
How many times have you wondered if someone you're talking to in an informant sent to entrap you? How many times have you or a friend of yours been hit by a car, intentionally? How many friends have been hit, or almost hit? Ever been stabbed? Know anyone who has? Has the FBI ever knocked on a friend's door? Have police ever kicked down your door? Have you ever been arrested? Pepper sprayed? Does the sound or smell or blast balls give you flashbacks? Do you ever wonder what all the CS exposure is doing to your body? How many times have you been shot or shot at? Do you wonder every day if this is the day they'll come to kill you? Would anyone in your social circle answer these questions differently?
When you vote, you risk nothing (big asterisk, but if I'm talking to you then it doesn't apply to you). What you get out of voting is exactly what you put into it. Direct action is the same.
If you aren't worried about someone murdering you, then you probably aren't actually threatening the system. That's the difference between voting, and doing something useful. If they had to murder all the liberals in order to keep going, fascism would end. If they're only murdering radicals and marginalized people, then you're just like all the "good Germans" who hated Hitler but did essentially nothing.
It's already that bad for some people. How much are you willing to risk? How many people are you willing to sacrifice for your comfort? These are the questions we're all thinking about every time you tell us to vote.
(I'm tagging this #USPol so it's easy for folks to filter out if they're already well acquaintaned with the horror. I'm not CW, because USPol is just expected to be triggering.)

Indirect CW: religious abuse, divorce
Just finished "Visitations" by Corey Egbert, a really powerful fictionalized graphic autobiography about a kid growing up in a cult-adjacent situation. It's more about his specific parent than the Mormon Church, but of course his mom's problems are symbiotic with and amplified through faith.
Spoilers:
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Has a positive ending, thank goodness.
#AmReading

Accelerating Mirrors as a Physical Realization of the Kappa Plane-Wave Vacuum
Arash Azizi
https://arxiv.org/abs/2509.14239 https://arxiv.org/pdf/2509.14239…

Accelerating Mirrors as a Physical Realization of the Kappa Plane-Wave Vacuum
The kappa plane-wave vacuum is a family of kinematically defined quantum states whose thermal properties are well-understood, but whose physical origin has remained an open question. In this paper, we provide a concrete dynamical realization for this vacuum, demonstrating that it is physically and operationally equivalent to the quantum state produced by an accelerating Carlitz-Willey (CW) mirror on future null infinity. The equivalence is established through a three-pronged proof, showing that…

Multiphysics Analysis of Cryogenically Cooled Photocathode in a CW SRF Injector cavity
Dmitry Bazyl, Klaus Floettmann, Elmar Vogel, Igor Zagorodnov
https://arxiv.org/abs/2508.11764

Multiphysics Analysis of Cryogenically Cooled Photocathode in a CW SRF Injector cavity
The paper evaluates the thermal regime of a cryogenically cooled copper photocathode integrated into a continuous-wave superconducting radio-frequency injector cavity with direct thermal contact. Such a photoinjector layout is being developed at DESY and has recently demonstrated a record-high 50 MV/m axial electric field in radio-frequency tests, marking an important milestone. To address the thermal effect of the picosecond excitation laser, we first develop a two-temperature model to describ…

Squeaking in at the end of @… week #HC29S — I played #POTA today, hunting CW park-to-park, to test my new QRP linked …

Homotopy types of S^{2k-1}-bundles over S^{2k}
Zhongjian Zhu, Jianzhong Pan
https://arxiv.org/abs/2508.13800 https://arxiv.org/pdf/2508.13800

Homotopy types of S^{2k-1}-bundles over S^{2k}
In this paper, we give the new necessary and sufficient conditions on the attaching map $f$ of the top cell of a CW-complex having the homotopy type of the total space of $S^{2k-1}$-fibration over $S^{2k}$ for any $k\geq 2$. As an application, we give the homotopy classification of the $S^{2k-1}$-bundles over $S^{2k}$ for some specific numbers $k\geq 2$ in our subsequent paper.

Link Bundles of Compact Toric Varieties of Real Dimension 8
Shahryar Ghaed Sharaf
https://arxiv.org/abs/2507.12309 https://arxiv.org/…

Link Bundles of Compact Toric Varieties of Real Dimension 8
The main goal of this work is to determine the Betti numbers of the links of isolated singularities in a compact toric variety of real dimension 8, using the CW-structure of the links. Additionally, we construct the intersection spaces associated with these links. Using the duality of the Betti numbers of intersection spaces, we conclude that, similar to the case of toric varieties of real dimension 6, the Betti numbers of the links contain only one non-combinatorial invariant parameter. In the…

I posted about meme shootings and a bit about how they're incentivized by "the algorithm." I felt like there was a lot more to talk about, so I expanded it to a blog post. (Thanks to @… for the video link, I also referenced in the post.)
CW: kids and gun violence, self harm, possible reference to sexual violence, the general traumatic stuff you'd expect from this subject
#USPol #GunViolence #MemeShootings #TCC #Capitalism #StochasticTerrorism