Tootfinder

Järnbrist är vanlig hos tonårsflickor och drabbar nästan var tredje flicka. Detta gäller i större utsträckning för flickor som äter klimatvänligt eller vegetariskt. Även skolmåltider är otillräckliga – både gällande totalt järnintag och biotillgänglighet av järn. https://…

Neuer #Mitbewohner (oder Mitbewohnerin?)
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Neuer #Mitbewohner (oder Mitbewohnerin?)
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Scalar and spinor fields in gravitating cosmic string spacetimes
Marcos Silva, Azadeh Mohammadi
https://arxiv.org/abs/2508.04877 https://arxiv.org/pdf/2508…

Scalar and spinor fields in gravitating cosmic string spacetimes
We study the scattering behavior of scalar and spinor fields in the background of a gravitating cosmic string spacetime. The model explored here for the background vortex is non-abelian, becoming abelian in an appropriate limiting case. We adopted the formalism we developed in \cite{silva2021scattering}, modifying the standard partial wave approach. We apply the method for a scalar and also a fermion field interacting with the background spacetime with a nontrivial asymptotic structure. The spa…

KIMissbrauch
Cloudflare wirft dem KI-Anbieter ##Perplexity vor, sich mit undeklarierten Crawlern Zugang zu gesperrten Websites zu verschaffen.
Trotz robots.txt-Verboten und IP-Blockaden soll Perplexity mit wechselnden User-Agents und IPs Inhalte verdeckt auslesen.
Das wäre eine Verletzung etablierter Webstandards und Missachtung von Website-Präferenzen.

Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives
Perplexity is repeatedly modifying their user agent and changing IPs and ASNs to hide their crawling activity, in direct conflict with explicit no-crawl preferences expressed by websites.

Jony Ive: Auch dank Jobs-Witwe zum Milliardär
Laurene Powell Jobs hat die Firmen LoveFrom und io des Ex-Apple-Designchefs Jony Ive mitfinanziert. Beide profitieren nun kräftig, so ein neuer Bericht.
https://www.

Nonlinear electrodynamic black hole's impact on the gravitational waveforms from periodic orbits
Mirzabek Alloqulov, Sanjar Shaymatov, Bobomurat Ahmedov, Tao Zhu
https://arxiv.org/abs/2508.05245

Nonlinear electrodynamic black hole's impact on the gravitational waveforms from periodic orbits
In this paper, we investigate periodic orbits exhibiting zoom-whirl behavior around a magnetically charged black hole (MCBH) within the framework of nonlinear electrodynamics (NED). We examine how the NED charge parameter influences orbital dynamics by modifying the background spacetime geometry, thereby affecting the energy and angular momentum of particles. In particular, we calculate the radii of the marginally bound orbits (MBOs) and innermost stable circular orbits (ISCOs), demonstrating t…

Suppressed Intrinsic Curvature Gravity
Ido Ben-Dayan, Elena Emtsova
https://arxiv.org/abs/2507.04502 https://arxiv.org/pdf/2507.04502…

Suppressed Intrinsic Curvature Gravity
We consider various mechanisms of modifying the effect of intrinsic curvature in gravity with respect to general relativity. Two primary approaches are studied. First, by considering a Lagrange multiplier or an auxiliary field. Second, by non-minimal coupling between a scalar field and the intrinsic curvature scalar. We reproduce the basic solutions of FLRW cosmology, black hole solutions, Lense-Thirring effect, and gravitational waves. The speed of gravitational waves is modified in comparison…