The Truth of Fact, the Truth of Feeling by Ted Chiang
Chiang is a great author, and I enjoyed everything I read but him so far. I started the mentioned short story but him, and all felt comfortable and interesting, and I thought already like I knew where this was going, and then, approximately just after the middle of the story, there are suddenly two sentences that shredder and shock me and I have to stop reading and process.
I really want to continue reading, but physically c…
I'm sorry, was it always that obvious a technology was fake and a bubble? If so, I seriously condemn all past generations for falling for this voodoo, crypto, nft, fusion reactor, new element nonsense.
https://…
Okay, now this is getting interesting... I admit I haven't tried Linux on my T490s in quite a while, after my earlier attempts to get the built-in 5G modem to work failed.
Following yesterday’s controversy over why, in my attempt to boycott U.S. products and services, I’d choose Microsoft over Fedora of all things (because, as I said, I need Windows for work—just like any other common operating system), I installed a different SSD today just for fun and put the latest beta of Fedo…
Found a site that always goes the extra mile for it's niche subject, to the point I genuinely feel bad tryna explore rather than be a sincere initiate https://enochian.net/
Folk who've been following me for a long time will remember that last autumn I was posting pictures of doing the joinery for a new workshop. And then I went mad, and got ill, and for most of this year there's been no progress.
But my friend Lucy has been here for a week, and between the two of us the frame is now erected. Now I need to sort the timber stack (which hasn't been improving while I've been ill), erect a roof, and build some walls. But the bit I couldn't …
Theoretical derivation of blood velocity from TOF-MRA based artery centerline
Abrar Faiyaz
https://arxiv.org/abs/2607.16498 https://arxiv.org/pdf/2607.16498 https://arxiv.org/html/2607.16498
arXiv:2607.16498v1 Announce Type: new
Abstract: Time-of-flight magnetic resonance angiography (TOF-MRA) is widely used for structural vascular imaging, but extracting functional hemodynamics like blood velocity typically requires supplementary phase-contrast scans. This study proposes a novel, physics-informed computational framework to extract variable fluid velocity directly from standard TOF-MRA signal profiles. We analytically expand the Bloch equations into Bloch-McConnell flow equations, establishing a mathematical relationship between the spatial decay of longitudinal magnetization and fluid velocity. To validate this derivation and overcome the limitations of constant-velocity assumptions, a MATLAB simulation framework was developed to model fluid flow in two variable-geometry flowing tube cases i.e continuous tapering and focal stenosis -under synthetic scanner noise. A global inverse optimization approach utilizing Dual-Tikhonov regularization was deployed to stably invert the ill-posed transit time integral, actively penalizing high-frequency numerical ringing while preserving structural curve stiffness. The computational sim-ulations successfully recovered ground-truth point-wise velocities, accurately tracking gradual hemodynamic accelerations and sharp stenotic jets. This theoretical framework provides a robust mathematical proof-of-concept that quantitative, localized functional hemodynamic metrics can be extracted from standard structural MRA imaging, estab-lishing a foundation for advanced flow quantification without requiring additional scan time.
toXiv_bot_toot
I couldn't decide what to do today and where to go. I got up too late for a longer hike due to the heat. In the end I just got on my bike and followed the road and pushed myself for some training effect.
It was a really enjoyable ride except for the last 10km where the heat got really annoying.
Is this a #silentsunday contribution? I think so... No talking, less thinking, j…
Replaced article(s) found for astro-ph.GA. https://arxiv.org/list/astro-ph.GA/new
[1/3]:
- CO Observations of Early-mid Stage Major Mergers in the MaNGA Survey
Yu, Fang, Xu, Feng, Feng, Gao, Jiang, Lisenfeld
https://arxiv.org/abs/2404.18999 https://mastoxiv.page/@arXiv_astrophGA_bot/112364597912941989
- A first systematic study of [OIII] 88$\mu$m at $z>8$: two luminous oxygen lines and a powerful io...
Hiddo S. B. Algera, et al.
https://arxiv.org/abs/2512.14486 https://mastoxiv.page/@arXiv_astrophGA_bot/115734347184965000
- Electron temperature relations and the direct N, O, Ne, S and Ar abundances of 49959 star-forming...
D. Scholte, et al.
https://arxiv.org/abs/2601.02463 https://mastoxiv.page/@arXiv_astrophGA_bot/115852861581257007
- The Role of Inner Halo Angular Momentum (Spin) in Shaping Dark Matter Bars in Milky Way Analogs
Shouvik Ghosh, Sandeep Kumar Kataria
https://arxiv.org/abs/2601.14420 https://mastoxiv.page/@arXiv_astrophGA_bot/115938036617000433
- GA-NIFS: Dissecting The Alchemised: JWST reveals turbulent metal-poor gas fuelling a co-spatial s...
Robert G. Pascalau, et al.
https://arxiv.org/abs/2603.00232 https://mastoxiv.page/@arXiv_astrophGA_bot/116164296791419745
- The Star Formation History of WLM from Asymptotic Giant Branch Stars and The Discovery of a Candi...
Abigail J. Lee, Daniel R. Weisz, Andrew E. Dolphin, Alessandro Savino
https://arxiv.org/abs/2603.00243 https://mastoxiv.page/@arXiv_astrophGA_bot/116164584608441374
- Two Exciting High-redshift Galaxy Candidates Turn Out to Be Two Exciting Ultra-cool Brown Dwarfs
Maru\v{s}a Brada\v{c}, et al.
https://arxiv.org/abs/2604.23668 https://mastoxiv.page/@arXiv_astrophGA_bot/116481375281380996
- PEARLS: JWST Counterparts of Micro-Jy Radio Sources in the NEP Time Domain Field. II. All Four Sp...
S. P. Willner, et al.
https://arxiv.org/abs/2605.17040 https://mastoxiv.page/@arXiv_astrophGA_bot/116600246884579228
- Eppur non si trovano Vol. 3: Phoebe -- a Mirage of a Primordial Black Hole
Andrzej Udalski, Przemek Mr\'oz
https://arxiv.org/abs/2606.19442 https://mastoxiv.page/@arXiv_astrophGA_bot/116775643602203820
- LEGGOS I: The JWST LEGGOS Survey -- LEnsing and Galaxy Growth: Observing Substructures -- Unpacks...
Gourav Khullar, et al.
https://arxiv.org/abs/2606.20845 https://mastoxiv.page/@arXiv_astrophGA_bot/116798485365000724
toXiv_bot_toot
How Trump and Musk made the Nepal disaster worse, by glaciologist dr Heïdi Sevestre:
"What about early warning systems?"
SERVIR Hindu Kush Himalaya, a joint initiative by NASA, USAID and ICIMOD monitoring, had mapped landslide and flood hazard in these valleys since 2010.
The Trump administration’s aid freeze cut it in January 2025."
https…
I want to throw companies who force login via emailed timed codes over a bridge. If they only have a username/e-mail field without a password field ready right away, I want to light them on fire. If they offer the option to add TOTP 2FA but still do the previous two, I want to crush them in one of those things for compacting trash. Kickstarter would be a little burning cube falling from a bridge, incidentally.