Tootfinder

'Along the Dnipro' – Ukraine’s longest river tells stories of war, life, and hope (photos): https://benborges.xyz/2025/09/08/along-the-dnipro-ukraines-longest.html

Almost 55,000 children in Gaza are estimated to be acutely malnourished,
far more than have so far been identified as victims of the potentially lethal condition,
a study published in the Lancet, the respected international medical periodical, has revealed.
The study, published on Wednesday, and led by the UN Relief and Works Agency for Palestine Refugees (Unrwa),
offers a month-by-month breakdown through much of the two-year conflict,
and shows for the first ti…

If this was tech, all the thought leaders in the astronomy field would write articles like “aliens are inevitable” and “if you don’t believe in aliens you will be left behind”.
https://sites.psu.edu/astrowright/2025/08/06/more-avi-and-3i-atlas/

"Banking industry’s net zero alliance shuts down amid faltering climate commitments"
#NetZero #Finance #Banking

Almost all graphs have no cospectral mate with fixed level
Wei Wang, Da Zhao
https://arxiv.org/abs/2509.05781 https://arxiv.org/pdf/2509.05781

Almost all graphs have no cospectral mate with fixed level
Haemers conjectures that almost all graphs are determined by their spectra. Suppose $G \sim \mathcal{G}(n, p)$ is a random graph with each edge chosen independently with probability $p$ with $0 < p < 1$. Then $$\Pr(G \text{ is not controllable}) + \sum_{\ell = 2}^{n^{n^2}} \Pr(G \text{ has a generalized copsectral mate with level } \ell) \to 0$$ as $n \to \infty$ implies that almost all graphs are determined by their generalized spectra. It is known that almost all graphs are controllable. We s…

Today's ebike ride was 8.25 miles along one of my normal routes but I tried to avoid pedal assist as much as I could. In a 45 minute ride I probably used it for less than 5 minutes just to deal with a few hills along the way. I really want to get used to riding without assist for more of a "workout" on it, but also have the backup of assist for the hills.
#biking

On a class of almost Hermitian 4-manifolds
Ethan Addison, Tedi Draghici, Mehdi Lejmi
https://arxiv.org/abs/2510.05358 https://arxiv.org/pdf/2510.05358

On a class of almost Hermitian 4-manifolds
Using an integral identity proved by Sekigawa \cite{Sek87} on compact almost Hermitian 4-manifolds, we naturally obtain a global characterization of the class $\mathcal{AH}_1$ of almost Hermitian 4-manifolds satisfying the first Gray curvature condition from apparently weaker conditions. Then we take steps towards a classification of almost Hermitian 4-manifolds of class $\mathcal{AH}_1$, including proving a uniqueness result on 4-dimensional Lie algebras.

Beim Einkaufen sollten die Behörden Freie Software Produkte und Entwicklungen bevorzugen. Also "Public Money Public Code" #PMPC. Der jetzige Gesetzes-Entwurf zur Vergabe hat da noch viel Luft nach oben, stellt in

Two Fefferman-type constructions involving almost Grassmann structures and path geometries
Zhangwen Guo
https://arxiv.org/abs/2509.04878 https://arxiv.org/…

Two Fefferman-type constructions involving almost Grassmann structures and path geometries
We introduce a Fefferman-type construction that associates an almost Grassmannian structure of type $(2,n+1)$ to every $(n+1)$-dimensional path geometry. We prove that the construction is normal and provide two equivalent characterizing conditions for all almost Grassmannian structures which locally arise from this construction: one in terms of certain parallel tractors and the other in terms of a Weyl connection of an almost Grassmann structure. We prove that the latter condition is independen…

Today, California Governor Gavin Newsom,
Oregon Governor Tina Kotek,
and Washington Governor Bob Ferguson
announced they will launch a new
⭐️"West Coast Health Alliance"
to ensure residents remain protected by science, not politics.
The alliance represents a unified regional response to the Trump Administration’s destruction of the U.S. CDC’s credibility and scientific integrity.
“President Trump’s mass firing of CDC doctors and scientists…

California, Oregon, and Washington to launch new West Coast Health Alliance to uphold scientific integrity in public health as Trump destroys CDC’s credibility | Governor of California
State of California