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.

DoorDash, Uber, and Grubhub agree to settle a 2021 lawsuit against New York City over its pandemic-era 15% cap to commissions and fees charged to restaurants (Malathi Nayak/Bloomberg)
https://www.bloomberg.com/news/articles/20

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…

2021: There is no #AI, I'm doing my own laundry.
2023: CEOs are saying that AI is coming and will do your laundry.
2025: There is AI. I'm still doing my own laundry.
2027?: I'm doing the AI's laundry.

from my link log —
Crossness pumping station: seduced by symmetry.
https://www.anthonybaines.co.uk/blog/2021/9/2/crossness-pumping-station-seduced-by-symmetry
saved 2025-05-15

Crossness Pumping Station: seduced by symmetry — Anthony Baines Photography
Last week, I was lucky enough to visit the Crossness Pumping Station in South-East London . It is variously known as the "Cathedral in the Marshes" or, more bluntly, the "Cathedral of Sewage". It is a former Victorian sewage pumping station, opened in 1865; it continued to ope

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…

This https://arxiv.org/abs/2411.13818 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Proof of Merca's stronger conjecture on truncated Jacobi triple product series
In the study of theta series and partition functions, Andrews and Merca, Guo and Zeng independently conjectured that a truncated Jacobi triple product series has nonnegative coefficients. This conjecture was proved analytically by Mao and combinatorially by Yee. In 2021, Merca proposed a stronger version of the conjecture, that is, for positive integers $1\leq S

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…

Что нужно знать о порядочности Дурова:
Забанить канал координации кандидатов в России во время выборов — так точно, тов. майор! :blobcatsalute:
Забанить канал координации кандидатов в Румынии во время выборов — мы не позволим разрушать демократию. Твердо и четко! :blobancap:
https://t.me/durov_russia/34

Что нужно знать о порядочности Дурова:
Забанить канал координации кандидатов в России во время выборов — так точно, тов. майор! :blobcatsalute:
Забанить канал координации кандидатов в Румынии во время выборов — мы не позволим разрушать демократию. Твердо и четко! :blobancap:
https://t.me/durov_russia/34