Tootfinder

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…

On The Green Light Signal and Beyond (2021) - Learn how I am trying a smart lighting nudge @home to use 'leccy at grid-friendly times. #IoT #CO2Intensity -

On The Green Light Signal and Beyond (2021)
Learn how I am trying a smart lighting nudge @home to use leccy at grid-friendly times. #IoT #CO2Intensity

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

"No Manuscript"
- piano improvisations -
- from blizzard to calm -
#PianoImprov #NowPlaying
https://

No Manuscript #PianoImprov #NowPlaying
Stan Stewart - @muz4now

An analysis of 61 settlements signed by Channel 4 staff who left amid employment disputes between 2017 and 2021 shows it paid out ~£5M and all but two had NDAs (Jake Kanter/Deadline)
https://deadline.com/2025/06/channel-4-denies-using-nda-zelda-pe…

Channel 4 Says It Doesn’t Use NDAs, But Documents Reveal Company Is Curbing Free Speech Of Aggrieved Ex-Employees
Channel 4 described itself as the "defender of free speech," but documents reveal it is restricting what former staffers can say about the company.

Senior State Department staffer Darren Beattie,
a passionate Putin supporter behind the move to dismantle a key agency fighting Russian propaganda,
is married to a Russian woman whose uncle is a longtime Kremlin ally, according to The Telegraph.
Yulia Kirillova grew up in Moscow, studied abroad in North America, and married Beattie in 2021 in Florida.
She moved to D.C. in January.
Her uncle Sergei Cherniko is a drinks magnate who had an estimated net worth of $1…

Trump Official Behind Controversial Russia Decision Has Kremlin Ties
Darren Beattie dismantled a key agency fighting Russian propaganda. There’s a reason why.

This https://arxiv.org/abs/2412.13191 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Moment-sos and spectral hierarchies for polynomial optimization on the sphere and quantum de Finetti theorems
We revisit the convergence analysis of two approximation hierarchies for polynomial optimization on the unit sphere. The first one is based on the moment-sos approach and gives semidefinite bounds for which Fang and Fawzi (2021) showed an analysis in $O(1/r^2)$ for the r-th level bound, using the polynomial kernel method. The second hierarchy was recently proposed by Lovitz and Johnston (2023) and gives spectral bounds for which they show a convergence rate in $O(1/r)$, using a quantum de Finet…

Ex-Raiders defensive end has jersey displayed in Smithsonian https://www.reviewjournal.com/sports/raiders/ex-raiders-defensive-end-has-jersey-displayed-in-smithsonian-3381344/

fab interview with @… guitarist dm hotep about building the wildly cool/expansive ghost horizons project around marshall allen & collaborators. https://pos…

Resonances: A Conversation with DM Hotep on Marshall Allen’s Ghost Horizons - PostGenre
In a 2021 interview, Henry Threadgill noted his belief that “[Marshall Allen] should have the highest award that can be bestowed on any artist for performing one-nighters at age 97. They should make up an award for such a person… he’s going unrecognized. It is a travesty. Can you imagine doing one-nighters at 97 years

Vintage NPOI: New and Updated Angular Diameters for 145 Stars
Ellyn K. Baines, James H. Clark III, Bradley I. Kingsley, Henrique R. Schmitt, Jordan M. Stone
https://arxiv.org/abs/2506.02912

Vintage NPOI: New and Updated Angular Diameters for 145 Stars
We present new or updated angular diameters, physical radii, and effective temperatures for 145 stars from the Navy Precision Optical Interferometer data archive. We used data from 1996 to late-2021, and we describe the differences between early and late data, which hinge upon an update of the beam combiner in 2002. We came across several sub-categories of stars of interest: 13 of our stars are promising targets for the Habitable World Observatory and therefore require as much study as possible…

This https://arxiv.org/abs/2505.24586 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

All-sky search for individual Primordial Black Hole bursts with LHAASO
Primordial Black Holes~(PBHs) are hypothetical black holes with a wide range of masses that formed in the early universe. As a result, they may play an important cosmological role and provide a unique probe of the early universe. A PBH with an initial mass of approximately $10^{15}$~g is expected to explode today in a final burst of Hawking radiation. In this work, we conduct an all-sky search for individual PBH burst events using the data collected from March 2021 to July 2024 by the Water Che…

Bird of the Day — Prairie Falcon, Kansas 2021
#Birds #NaturePhotography #Nature #Wildlife

This https://arxiv.org/abs/2505.07369 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On lattice coverings by locally anti-blocking bodies and polytopes with few vertices
In 2021, Ordentlich, Regev and Weiss made a breakthrough that the lattice covering density of any $n$-dimensional convex body is upper bounded by $cn^{2}$, improving on the best previous bound established by Rogers in 1959. However, for the Euclidean ball, Rogers obtained the better upper bound $n(\log_{e}n)^{c}$, and this result was extended to certain symmetric convex bodies by Gritzmann. The constant $c$ above is independent on $n$. In this paper, we show that such a bound can be achieved fo…

This https://arxiv.org/abs/2302.11862 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Bounds on Functionality and Symmetric Difference -- Two Intriguing Graph Parameters
Functionality ($\mathrm{fun}$) is a graph parameter that generalizes graph degeneracy defined by Alecu et al. [JCTB, 2021]. They research the relation of functionality to many other graphs parameters (tree-width, clique-width, VC-dimension, etc.). Extending their research, we completely characterize the functionality of random graph $G(n,p)$ for all possible $p$. We provide matching (up to a constant factor) lower and upper bound for a large range of $p$. It follows from our bounds for $G(n,p)$…

Assessing innovation in the nascent value chains of climate-mitigating technologies
Zachary H. Thomas, Ellen D. Williams, Kavita Surana, Morgan R. Edwards
https://arxiv.org/abs/2506.00010

Assessing innovation in the nascent value chains of climate-mitigating technologies
Accelerating climate-tech innovation in the formative stage of the technology life cycle is crucial to meeting climate policy goals. During this period, competing technologies are often undergoing major technical improvements within a nascent value chain. We analyze this formative stage for 14 climate-tech sectors using a dataset of 4,172 North American firms receiving 12,929 early-stage private investments between 2006 and 2021. Investments in these firms reveal that commercialization occurs i…

Effect of Different Concentration and Application Method of Zinc on Yield of Chickpea (Pisum Sativum L.)
Samaneh Goodarzi, Ali Tavanmand, Hamed Shajari
https://arxiv.org/abs/2505.23855

Effect of Different Concentration and Application Method of Zinc on Yield of Chickpea (Pisum Sativum L.)
This study evaluated the impact of Zinc (Zn) supplementation on the growth, yield, and seed quality of chickpea (Pisum sativum L.) under the semi-arid conditions of Kerman, Iran, across two growing seasons (2021-2022). A randomized complete block design was used with six treatments, including varying concentrations of zinc sulphate applied via foliar spraying (0.1%, 0.25%, 0.5%) or irrigation (4, 8, 16 kg/ha), each applied twice-one and two months after greening. Results from the first year rev…