The effect of 20th century industrialization: Power station, acid rains, over-pumping, on an erstwhile uniform freshwater dune aquifer in Haifa Bay, Israel
Vasily Rogojin, Joel Kronfeld
https://arxiv.org/abs/2607.00893 https://arxiv.org/pdf/2607.00893 https://arxiv.org/html/2607.00893
arXiv:2607.00893v1 Announce Type: new
Abstract: A small phreatic sand dune aquifer lies along the shore of Haifa Bay. It has been exploited for its freshwater resources since the 1930s. During this time the salinity has increased continuously, partly by seawater intrusion due to overpumping. The chemistry of the young aquifer water is laterally variable and is characterized by excess SO$_4^{2-}$, high $Sr^{2 }$ concentrations above that of modern seawater, high alkalinity, and markedly enriched $\delta^{13}C_{DIC}$ values. Acidic winter rains, formed from $SO_x$ and $NO_x$ gaseous emissions from a nearby power station, leach the dry deposition that accumulated across the dune surface during the dry summers. The acidity also partially dissolves the aragonite sea shells in the dune sands, remnants of a previous marine transgression. As a consequence, this adds $Sr^{2 }$, $Ca^{2 }$ excess, and alkalinity, while leading to enriched $\delta^{13}C_{DIC}$ values, particularly during the winter, at which time the radiocarbon activity in the DIC is observed to decrease.
toXiv_bot_toot
'Minister Jaimi van Essen (Natuur) schrijft het zo aan de Tweede Kamer: ‘Tot er nieuwe besluiten zijn genomen op de vergunningsaanvragen, worden de luchthavens strikt genomen geëxploiteerd in strijd met de natuurvergunningsplicht uit de Omgevingswet’.
Van de rechter moet hij binnen acht weken nieuwe besluiten nemen.'
De vluchten gaan door vanaf Eindhoven en Rotterdam, ook zonder verplichte natuurvergunning | Trouw
https://www.trouw.nl/duurzaamheid-economie/de-vluchten-gaan-door-vanaf-eindhoven-en-rotterdam-ook-zonder-verplichte-natuurvergunning~b044fd6d/
Still more reasons the AI boosters are full of as much shit as the AI itself.
#Sexism
#totp Five Star fact: 'While promoting "With Every Heartbeat", the group made an infamous appearance on the British children's TV show Going Live!, when, during a live phone-in, a teenage caller verbally abused them and asked why they were "so fucking crap"'
Das ist reine Symbolpolitik aus ideologischer Verblendung. Aber das passt ja gut zur aktuellen Bundesregierung, die offensichtlich ihren Job Akt Tür Realität mehr und mehr zurück dreht.
https://www.fr.de/wirtschaft/heizungsverbo
The spectral picture of self-similar collapse in the Constantin-Lax-Majda equation
Jie Xu
https://arxiv.org/abs/2607.19762 https://arxiv.org/pdf/2607.19762 https://arxiv.org/html/2607.19762
arXiv:2607.19762v1 Announce Type: new
Abstract: We give a spectral description of the self-similar collapse profile of the Constantin-Lax-Majda (CLM) equation, the $a=0$ anchor of the generalized family $w_t a\,u\,w_x = u_x\,w$, $u_x = Hw$. Linearizing about the exact profile $\Omega(y) = -y/(y^2 1/4)$ and realizing $L_0$ as a closed operator on the origin-$H^2$ space, we prove three things at $a=0$. Its essential spectrum meets the closed half-plane $\{\mathrm{Re}\,\lambda \ge -1/2\}$ in the single vertical line $\{\mathrm{Re}\,\lambda = -1/2\}$: the line is placed by a log-widening Weyl sequence, and an explicit Hardy-Mellin resolvent bound constructively empties the rest of the half-plane apart from $0$ and $1$. Its full point spectrum over $\mathbb{C}$, on the odd realization, is exactly $\{0,1\}$, the scaling and time-shift symmetry modes, with no embedded eigenvalues; removing these by the standard modulation leaves a spectral gap of $1/2$ on $X$. The linear semigroup and its exact decay rate $e^{-\tau/2}$ are computed in closed form, but on a weighted space of the conjugated variable reached from $X$ by a bounded transfer map; we keep the two separate, since $L_0$ is non-normal and a spectral gap does not by itself give a decay rate in the $X$ norm. A realization dichotomy identifies the in-strip smear of generic discretizations as the faithful spectrum of the maximal $L^2$ realization, which origin-$H^2$ removes. For $a>0$ we prove a conditional two-line inclusion for each admissible smooth focusing profile, recompute the branch $c_l(a)$ of Lushnikov, Silantyev, and Siegel as a cross-check, and record the formal scaling-relevance exponent $s^*(a) = 1/c_l(a)$, below which fractional dissipation is asymptotically subdominant in self-similar variables for fixed sufficiently regular data. The contribution is the realization-dependent spectral picture of the collapse profile itself.
toXiv_bot_toot
"Bis Klasse sieben: Kommission empfiehlt Handyverbot
Die private Nutzung von Handys sollte aus Sicht der zuständigen Expertengruppe für alle Schüler bundesweit im Unterricht und in Pausen bis Klasse sieben verboten werden. Dies geht aus den Empfehlungen der Expertenkommission "Kinder- und Jugendschutz in der digitalen Welt" hervor. Die Fachleute plädieren dafür, das einheitlich in allen Schulgesetzen festzulegen. Ab Klasse acht sollen Schulen demnach verpflichtet werden, mit den Schülerinnen und Schülern verbindliche Nutzungskonzepte zu erarbeiten."
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#BigTech
#Hochleistungsgesellschaft
#Kapitalismus
#Algorithmus #Algorithmen
#Aspirin
#Hirntumor