Tootfinder

from my link log —
Postgres extensions in Rust.
https://depth-first.com/articles/2021/08/25/postgres-extensions-in-rust/
saved 2021-08-29

Postgres Extensions in Rust
Opening a new path to high-performance, domain-specific database applications.

Podcast : Une enfance sous emprise
Dans cet épisode, Ricardo et Sophie racontent leurs vécus et échangent des souvenirs sur la réalité d'une enfance endoctrinée au sein d'une "communauté bouddhiste" cachant de véritables monstres.
https://chardonsbleus.org/podcast-une-

Gear Fever - Musicians, Take Your Temperature
#MusicianTips #GearAquisitionSyndrome
https://

Gear Fever - Musicians, Take Your Temperature
Stan Stewart - @muz4now

from my link log —
EBCDIC is incompatible with GDPR.
https://shkspr.mobi/blog/2021/10/ebcdic-is-incompatible-with-gdpr/
saved 2024-10-28

EBCDIC is incompatible with GDPR
Welcome to acronym city! The Court of Appeal of Brussels has made an interesting ruling. A customer complained that their bank was spelling the customer's name incorrectly. The bank didn't have support for diacritical marks. Things like á, è, ô, ü, ç etc. Those accents are common in many languages. So it was a little surprising that the bank didn't support them. The bank refused to spell their c…

Down But Not Out: The Case of Long-Period Comet C/2021 O3 (Panstarrs)
David Jewitt. Jing Li, Michael Jaeger, Yoonyoung Kim
https://arxiv.org/abs/2506.09263

Down But Not Out: The Case of Long-Period Comet C/2021 O3 (Panstarrs)
We combine ground- and space-based observations of long-period comet C/2021 O3 (Panstarrs) (perihelion distance 0.287 au) in order to investigate its reported near-perihelion destruction. Pre-perihelion photometric observations show a remarkably small heliocentric dependence of the scattered light, $\propto r_H^{-s}$ with $s = 2.59\pm0.21$, distinct from values reported in other long-period comets, for which $s$ = 4 is the canonical standard. The index is smaller than expected of coma productio…

This https://arxiv.org/abs/2501.07576 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

The BCFW Tiling of the ABJM Amplituhedron
The orthogonal momentum amplituhedron O_k was introduced simultaneously in 2021 by Huang, Kojima, Wen, and Zhang, and by He, Kuo, and Zhang, in the study of scattering amplitudes of ABJM theory. It was conjectured that it admits a decomposition into BCFW cells. We prove this conjecture.

Note on the interpretation of magnetic diffraction in NdAlSi: helical or fan?
Takashi Kurumaji
https://arxiv.org/abs/2506.04000 https://

Note on the interpretation of magnetic diffraction in NdAlSi: helical or fan?
We revisit the magnetic structure analysis reported in Nat. Mater. 20, 1650 (2021), which concluded that a Weyl semimetal candidate NdAlSi hosts a helical magnetic order. This conclusion was based on magnetic neutron diffraction peaks corresponding to modulation vectors $\vec{k}_{in} = (1/3, 1/3, 0)$ and $\vec{k}_{out} = (2/3, 2/3, 0)$, attributed to in-plane and out-of-plane components of the magnetic moments, respectively. Upon careful reanalysis, we suggest that a fan-type magnetic structure…

Exacerbation of viscoelastic instability due to viscous heating
Ankush Kamboj, Ramkarn Patne, P. A. L. Narayana, Kirti Chandra Sahu
https://arxiv.org/abs/2506.04617

Exacerbation of viscoelastic instability due to viscous heating
The linear stability analysis of the pressure-driven flow of an Oldroyd-B fluid through a plane channel is performed to examine the effects of viscous heating-induced buoyancy on the ``purely elastic instability" predicted by \citet{khalid2021continuous} (Phys. Rev. Lett., 2021, 127, 134502). We do not impose any external heating; rather, the temperature increase in the system is solely due to the viscous heating generated by the flow of a highly viscous fluid, which induces buoyancy. This buoy…

from my link log —
Faster remainder by multiplication, with applications to compilers and software libraries.
https://arxiv.org/abs/1902.01961
saved 2021-05-23

Faster Remainder by Direct Computation: Applications to Compilers and Software Libraries
On common processors, integer multiplication is many times faster than integer division. Dividing a numerator n by a divisor d is mathematically equivalent to multiplication by the inverse of the divisor (n / d = n x 1/d). If the divisor is known in advance---or if repeated integer divisions will be performed with the same divisor---it can be beneficial to substitute a less costly multiplication for an expensive division. Currently, the remainder of the division by a constant is computed from…