@brewsterkahle@mastodon.archive.orgHorse Bots ! -- but not what you think-- but I couldn't resist.
Thank you, Department of Ag leaflets, this one from 1973.
https://archive.org/details/horsebotshowtoco450unit_2/page/n1/mode/2up
(lots of leaflets:
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 433 nodes and 1941 edges.
Tags: Informational, Web gra…
@emilis@social.linux.pizzaToday's find on Wikipedia:
#uselessfacts
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 346 nodes and 26832 edges.
Tags: Informational, Web gr…
@cdarwin@c.imIran extends airspace closure
Iran further extended an order closing its airspace to commercial aircraft without explanation early on Thursday.
A notice to pilots said the closure was estimated to last until 7.30am local time, the AP is reporting.
A previous order had closed the airspace for just over two hours.
The Iranian government offered no explanation of the decision to shut its airspace amid the tensions with Washington over Tehran’s protest crackdown.
@geant@mstdn.social5 reasons to submit your idea for #TNC26 Call for Proposals - Part 2
Next June, Helsinki 🇫🇮 will welcome our global R&E community under the theme Digital Sisu—inspired by the Finnish concept of “sisu:” inner strength, perseverance, and determination when things get tough.
In our digital era, sisu is about taking action, meeting challenges with courage, creativity, and collaboration to…
@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.pageNuclear spin quenching of the $^2S_{1/2}\rightarrow {^2}F_{7/2} $ electric octupole transition in $^{173}$Yb$^ $
Jialiang Yu, Anand Prakash, Clara Zyskind, Ikbal A. Biswas, Rattakorn Kaewuam, Piyaphat Phoonthong, Tanja E. Mehlst\"aubler
https://arxiv.org/abs/2512.05872 https://arxiv.org/pdf/2512.05872 https://arxiv.org/html/2512.05872
arXiv:2512.05872v1 Announce Type: new
Abstract: We report the coherent excitation of the highly forbidden $^2S_{1/2} \rightarrow {^2}F_{7/2}$ clock transition in the odd isotope $^{173}\mathrm{Yb}^ $ with nuclear spin $I = 5/2$, and reveal the hyperfine-state-dependent, nuclear spin induced quenching of this transition. The inferred lifetime of the $F_e = 4$ hyperfine state is one order of magnitude shorter than the unperturbed ${^2}F_{7/2}$ clock state of $^{171}\mathrm{Yb}^ $. This reduced lifetime lowers the required optical power for coherent excitation of the clock transition, thereby reducing the AC Stark shift caused by the clock laser. Using a 3-ion Coulomb crystal, we experimentally demonstrate an approximately 20-fold suppression of the AC Stark shift, a critical improvement for the scalability of future multi-ion $\mathrm{Yb}^ $ clocks. Furthermore, we report the $|^2S_{1/2},F_g=3\rangle~\rightarrow~|^2F_{7/2},F_e=6\rangle$ unquenched reference transition frequency as $642.11917656354(43)$ THz, along with the measured hyperfine splitting and calculated quadratic Zeeman sensitivities of the ${^2}F_{7/2}$ clock state. Our results pave the way toward multi-ion optical clocks and quantum computers based on $^{173}\mathrm{Yb}^ $.
toXiv_bot_toot
@NFL@darktundra.xyzWeek 14 inactives: Jayden Daniels returns, Rome Odunze sits https://www.espn.com/fantasy/football/story/_/page/FFSundayInactives-47211819/nfl-fantasy-football-espn-injured-inactives-watchlis…
@voks@social.tchncs.deUh, that's new?! Apps installed from #AuroraStore can't be updated in #GooglePlayStore anymore?
I just updated to Aurora 4.7.5.
#Android15
@grahamperrin@bsd.cafe@… for clarity: I don't see pkgbase as strange, or dangerous.
It's sometimes misunderstood. Sometimes the big picture is not seen.
The 15.0 errata page, for example. The recent statement about major upgrades from 14.3 is wrong:
"systems installed with pkgbase(7) must backup and reinstall"
– that's unneces…
@andycarolan@social.lolAnyone have any thoughts on why Apple Books is only downloading pages of a book AS I reach them? It's leading to a frustrating 7 second delay on the page appearing as it downloads individually!
#AppleBooks #Apple
@michabbb@social.vivaldi.net@…
Good question! The numbers are from a production server with NVMe storage.
Breakdown:
- 19k files (15 GB): ~8-9 sec
- 13k files (53 GB): ~13-14 sec
- Total: 32k files (68 GB): ~21 sec
That's ~3.2 GB/s throughput - achievable with:
1. NVMe SSDs (3-7 GB/s sequential read)
2. Linux page cache on subseque…
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 433 nodes and 1941 edges.
Tags: Informational, Web gra…
@arXiv_condmatsuprcon_bot@mastoxiv.pageFinite-Temperature $\textit{ab initio}$ Structural Optimization of the Bilayer Nickelate Superconductor La$_3$Ni$_2$O$_7$
Ryoma Asai, Ryotaro Arita, Takumi Chida, Ryota Masuki, Kazuhiko Kuroki, Terumasa Tadano
https://arxiv.org/abs/2512.08251
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 334 nodes and 32988 edges.
Tags: Informational, Web gr…
@arXiv_physicsoptics_bot@mastoxiv.pageHigh-precision luminescence cryothermometry strategy by using hyperfine structure
Marina N. Popova, Mosab Diab, Boris Z. Malkin
https://arxiv.org/abs/2511.19088 https://arxiv.org/pdf/2511.19088 https://arxiv.org/html/2511.19088
arXiv:2511.19088v1 Announce Type: new
Abstract: A novel, to the best of our knowledge, ultralow-temperature luminescence thermometry strategy is proposed, based on a measurement of relative intensities of hyperfine components in the spectra of Ho$^{3 }$ ions doped into a crystal. A $^{7}$LiYF$_4$:Ho$^{3 }$ crystal is chosen as an example. First, we show that temperatures in the range 10-35 K can be measured using the Boltzmann behavior of the populations of crystal-field levels separated by an energy interval of 23 cm$^{-1}$. Then we select the 6089 cm$^{-1}$ line of the holmium $^5I_5 \rightarrow ^5I_7$ transition, which has a well-resolved hyperfine structure and falls within the transparency window of optical fibers (telecommunication S band), to demonstrate the possibility of measuring temperatures below 3 K. The temperature $T$ is determined by a least-squares fit to the measured intensities of all eight hyperfine components using the dependence $I(\nu) = I_1 \exp(-b\nu)$, where $I_1$ and $b = a\nu \frac{\nu}{kT}$ are fitting parameters and a accounts for intensity variations due to mixing of wave functions of different crystal-field levels by the hyperfine interaction. In this method, the absolute and relative thermal sensitivities grow at $T$ approaching zero as $\frac{1}{T^2}$.and $\frac{1}{T}$, respectively. We theoretically considered the intensity distributions within hyperfine manifolds and compared the results with experimental data. Application of the method to experimentally measured relative intensities of hyperfine components of the 6089 cm$^{-1}$ PL line yielded $T = 3.7 \pm 0.2$ K. For a temperature of 1 K, an order of magnitude better accuracy is expected.
toXiv_bot_toot
@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.pageOptical clocks with accuracy validated at the 19th digit
K. J. Arnold, M. D. K. Lee, Zhao Qi, Qichen Qin, Zhang Zhao, N. Jayjong, M. D. Barrett
https://arxiv.org/abs/2512.07346 https://arxiv.org/pdf/2512.07346 https://arxiv.org/html/2512.07346
arXiv:2512.07346v1 Announce Type: new
Abstract: We report a comprehensive evaluation of all known sources of systematic uncertainty for two independent $^{176}$Lu$^ $ single-ion optical references, finding total systematic uncertainty of $1.1\times10^{-19}$ and $1.4\times10^{-19}$ for the two individual systems and $9.6\times10^{-20}$ for the difference. Through direct comparison via correlation spectroscopy, we demonstrate a relative frequency agreement of $-2.4\pm(5.7)_\mathrm{stat}\pm(1.0)_\mathrm{sys}\times10^{-19}$, where `stat' and `sys' indicate the statistical and systematic uncertainty, respectively. The comparison uncertainty is statistically limited after approximately 200 hours of averaging with a measurement instability of $4.8\times10^{-16}(\tau/\mathrm{s})^{-1/2}$.
toXiv_bot_toot
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 334 nodes and 32988 edges.
Tags: Informational, Web gr…
@phpugmrn@phpc.socialImportant reminder! If you're no longer able to attend today's event, please cancel your attendance on our meetup page. This helps us plan for food and drinks. Thanks!
https://www.meetup.com/phpug-rhein-neckar/events/305478322/
@cdarwin@c.im@xankarn
Approximately 18% of SNAP recipients are over 60.
That’s over 7 million people.
A lot of those people have few options to generate more income.
Graphic from the USDA web page:
Also featuring a flagrant Hatch Act violation
http://www.ers.usda.gov/d…
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 300 nodes and 1155 edges.
Tags: Informational, Web gra…
@chrislowles@mastodon.socialdril turned on fedi sharing on threads and now i can repost this https://www.threads.com/@dril/post/DSxUmi4FF6A
@grahamperrin@bsd.cafeIn addition to <https://mastodon.bsd.cafe/@lw/115658547866818342>:
― a bug in the Examples section of the manual page for freebsd-base(7) in FreeBSD-RELEASE
<
@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.pageNuclear spin quenching of the $^2S_{1/2}\rightarrow {^2}F_{7/2} $ electric octupole transition in $^{173}$Yb$^ $
Jialiang Yu, Anand Prakash, Clara Zyskind, Ikbal A. Biswas, Rattakorn Kaewuam, Piyaphat Phoonthong, Tanja E. Mehlst\"aubler
https://arxiv.org/abs/2512.05872
@cdarwin@c.imRecalcitrant members of Congress who refuse to fulfill their Constitutional duty are, like Trump, using the incumbent powers of their office to remake the Constitution in a way that excuses their prejudices and enables their graft
https://skywriter.blue/pages/did:plc:7
@wandklex@mastodon.art[Türchenöffnungsgeräusch]
Tag 7 im #klexadventskalender - heute heißts "mein lieber Schwan" und auch sonst wirds auf #art #artShop #fediArt #mastoArt #creativeToots #artForSale
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 348 nodes and 33250 edges.
Tags: Informational, Web gr…
@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page[2025-11-25 Tue (UTC), 7 new articles found for physics.atom-ph Atomic Physics]
toXiv_bot_toot
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 346 nodes and 26832 edges.
Tags: Informational, Web gr…
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 433 nodes and 1941 edges.
Tags: Informational, Web gra…
@netzschleuder@social.skewed.dewebkb: WebKB graphs (1998)
Web graphs crawled from four Computer Science departments in 1998, with each page manually classified into one of 7 categories: course, department, faculty, project, staff, student, or other. All graphs included in a single .zip; also included are 'co-citation' graphs, which links i and j if they both point to some k. Edge weights count the number of links from i to j.
This network has 286 nodes and 1002 edges.
Tags: Informational, Web gra…
