Tootfinder

UK digital bank Monzo raised $430M led by Alphabet's CapitalG at a $5B valuation, up from $4.5B in December 2021, and plans to use funds to expand in the US (Financial Times)
https://t.co/OPNkJvAbDA

Competitive strategies to use "warm start" algorithms with predictions
Vaidehi Srinivas, Avrim Blum
https://arxiv.org/abs/2405.03661 https://

Competitive strategies to use "warm start" algorithms with predictions
We consider the problem of learning and using predictions for warm start algorithms with predictions. In this setting, an algorithm is given an instance of a problem, and a prediction of the solution. The runtime of the algorithm is bounded by the distance from the predicted solution to the true solution of the instance. Previous work has shown that when instances are drawn iid from some distribution, it is possible to learn an approximately optimal fixed prediction (Dinitz et al, NeurIPS 2021)…

"Indonesian palm oil, Brazilian beef top contributors to U.S. deforestation exposure"
#US #USA #America #Brazil

Indonesian palm oil, Brazilian beef top contributors to U.S. deforestation exposure
If you’re in the United States, your meal might come with a side of deforestation.  The US imported palm oil, cattle products, soybeans, cocoa, rubber, coffee and corn linked to an estimated 122,800 hectares (303,445 acres) of tropical deforestation between October 2021 and November 2023 — an area the size of the city of Los […]

This https://arxiv.org/abs/2404.19272 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Chandra Study of the Proper Motion of HST-1 in the Jet of M87
The radio galaxy M87 is well known for its jet, which features a series of bright knots observable from radio to X-ray wavelengths. We analyze the X-ray image and flux variability of the knot HST-1 in the jet. Our analysis includes all 112 available \textit{Chandra} ACIS-S observations from 2000-2021, with a total exposure time of $\sim$887 ks. We use de-convolved images to study the brightness profile of the X-ray jet and measure the relative separation between the core and HST-1. From 2003-20…

This https://arxiv.org/abs/2312.14191 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Noisy Measurements Are Important, the Design of Census Products Is Much More Important
McCartan et al. (2023) call for "making differential privacy work for census data users." This commentary explains why the 2020 Census Noisy Measurement Files (NMFs) are not the best focus for that plea. The August 2021 letter from 62 prominent researchers asking for production of the direct output of the differential privacy system deployed for the 2020 Census signaled the engagement of the scholarly community in the design of decennial census data products. NMFs, the raw statistics produced b…

Partage de clé secrète de Shamir
https://www.palabritudes.net/2021/08/24/partage-cle-secrete-shamir.html

This https://arxiv.org/abs/2403.17984 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Effect of seaweed, moringa leaf extract and biofertilizer on growth, yield and fruit quality of cucumber (Cucumis sativus L.) under greenhouse condition
This factorial experiment was conducted in a greenhouse during the period of May 3, 2021 to August 5, 2021 at the research farm belongs to the Horticulture Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, Iraq. The experiment was designed to study the effect of some biostimulants, individually and their combinations, on cucumber plants performance under greenhouse conditions; in addition to compare the results with of chemical fertilizers application…

The invisible black widow PSR J1720-0534: implications for the electron density towards the North Polar Spur
Karri I. I. Koljonen, Sindre S. Lindseth, Manuel Linares, Alice K. Harding, Marco Turchetta
https://arxiv.org/abs/2402.09010

The invisible black widow PSR J1720-0534: implications for the electron density towards the North Polar Spur
Radio emission from pulsars can be used to map out their distances through dispersion measure (DM), which quantifies the amount of radio pulse dispersion. However, this method relies on accurately modeling the free electron density in the line of sight. Here, we present a detailed study of the multi-wavelength emission from PSR J1720-0534, a black widow compact binary millisecond pulsar discovered in 2021, which the latest electron density model of the Galaxy (YMW16; Yao et al. 2017) places at …