Technical University of Munich

On the structure of the sandpile identity element on Sierpiński gasket graphs

Abstract We consider the identity of the abelian sandpile group of finite approximation graphs of the Sierpiński gasket, and we show that the second-order term in the scaling limit converges to the path distance to the nearest corner on the Sierpiński gasket. The proof relies on...

A neural operator framework for data-driven discovery of stability and receptivity in physical systems

Understanding how complex systems respond to perturbations, such as whether they will remain stable or what their most sensitive patterns are, is a fundamental challenge across science and engineering. Traditional stability and receptivity (resolvent) analyses are powerful but re...

STAT3 operates as an inflammation-dependent transcriptional switch in antiviral NK cells

The immune system integrates signals to regulate immune responses, forming complex context-dependent networks where identical cues produce distinct outcomes. Signal transducer and activator of transcription (STAT) transcription factors convert cytokine receptor engagement into tr...

Distinct contributions of expertise and automatization to higher dual-task performance: A cognitive–motor dual-task study in pianists

Abstract Dual-task studies consistently find that experts are better at performing two tasks at the same time than non-experts. Usually, this effect is explained by the high degree of skill automatization in experts, given that skills become increasingly automatized during later...

Metal-Dependent Control of Methoxy Retention versus Cleavage in Electrocatalytic Hydrogenation of Lignin-Derived Aromatics

Abstract Electrochemical hydrogenation of lignin-derived aromatics offers a route to biomass upgrading, but controlling methoxy retention versus cleavage remains challenging. Here, we compare carbon-supported Rh, Pt, Ru, and Pd catalysts for guaiacol conversion under identical co...

Global proteolysis during starvation governs proteome remodeling and a survival–regrowth trade-off in bacteria

Starving bacteria must synthesize stress proteins to survive, but how protein synthesis persists in the absence of nutrient influx is unclear. We show that in Escherichia coli , carbon starvation triggers large-scale proteome remodeling, with global proteolysis supplying both the...

Approach to optimal quantum transport via states over time

We approach the problem of constructing a quantum analogue of the immensely fruitful classical transport cost theory of Monge from a new angle. Going back to the original motivations, by which the transport is a bilinear function of a mass distribution (without loss of generality...

An accurate Lanczos method for the matrix product state representation

Abstract The Lanczos algorithm naturally finds multiple low-lying eigenstates simultaneously, providing a global and robust treatment of the spectrum without local minima or root flipping. However, when implemented within the matrix product state formalism, its accuracy is severe...

Coordination-Controlled Stability of Pd Single-Atom Catalysts under Electrochemical Conditions

Abstract Single-atom catalysts (SACs) maximize atom utilization and site-specificity for diverse chemical and electrochemical transformations. While activity and selectivity have been optimized through advanced synthetic methods, the electrochemical stability of SACs remains insu...

Technical note: A physically based correction of WRF temperature using atmospheric lapse rates for high-resolution hydrological simulations in a glacierized catchment

Abstract. High-elevation alpine catchments are particularly affected by the global rise in temperature. Understanding the drivers of climate-induced changes in the hydrological response of these catchments in the past is relevant for developing future adaptation strategies for wa...

Groundwater–Stream Connectivity Under Climate Change: Implications for the Ecology, Conservation and Sustainability of Urban Streams

Freshwater systems, including urban streams and groundwater, are increasingly affected by climate change through altered precipitation, rising temperatures, droughts, floods, and changing water demand. This narrative review synthesizes evidence on how these pressures modify groun...

ConSolv: Solvent-Conditional Machine Learning Implicit Solvent Potential

Abstract Implicit solvent machine learning potentials (MLPs) offer a powerful route to bridging the gap between accuracy and efficiency in molecular simulations. However, existing models have largely focused on aqueous environments, overlooking the diverse and important roles of...

Mechanistic Insights Into Noble Metal Nanoparticle Antimicrobial Activity through Correlative SEM–SEI‐XPS Analysis

This article presents a correlative analytical strategy for studying nanoparticle-microbe interactions. Understanding the intracellular transformations of metallic nanoparticles (MNPs) provides critical insights into their antimicrobial mechanisms and informs the design of safe,...

When does mental well-being matter for entrepreneurial income? The role of external objective resources from social contexts

Entrepreneurs’ mental well-being has increasingly captured the attention of both scholars and the broader public. Building on self-efficacy theory and conservation of resources (COR) theory, we examine how entrepreneurs’ mental well-being influences their income. We theorize that...

Synthesis, Cytotoxicity, and Mechanistic Evaluation of Thiazolium-Based Gold(I) Bis- N -Heterocyclic Carbene Complexes

Abstract Imidazole- and benzimidazole-based Au(I) N-heterocyclic carbene (NHC) complexes show great potency as anticancer agents. However, other NHC scaffolds are only sparsely explored. Four gold(I) NHC complexes featuring thiazolium-based ligands (NHCthia) with varying N-substi...

Membrane electrochemistry for whey processing and lactulose production

A second branch of Ilyan Kan's documented inventive work concerns process equipment for dairy biotechnology. Patent RU2837844C1 names Ilyan Chankhovich Kan and Dmitry Cherepkov as inventors of a flow-type membrane electrolyser designed for a single-stage whey-processing operation...

Composable logical gate error in approximate quantum error correction: reexamining gate implementations in Gottesman-Kitaev-Preskill codes

Quantifying the accuracy of logical gates is paramount in approximate error correction, where perfect implementations are often unachievable with the available set of physical operations. To this end, we introduce a single scalar quantity we call the (composable) logical gate err...

Prospective multicenter study on patient-related outcomes of orbital floor reconstruction using ultrahigh-molecular-weight polyethylene

This prospective, multicenter clinical study evaluated patient-reported outcomes, functional recovery, and quality of life following orbital floor reconstruction using ultra-high-molecular-weight-polyethylene (UHMWPE) implants. The study emphasized both subjective recovery and th...

Photoinitiated Synthesis of a Covalent Pullulan and Beta Cyclodextrin Conjugate in Supercritical Carbon Dioxide

A three-stage route is proposed for the preparation of a covalent pullulan-beta-cyclodextrin conjugate through carboxymethylation of beta-cyclodextrin, EDC/NHS-mediated coupling with cysteamine, allylation of pullulan, and photoinitiated thiol-ene conjugation in a supercritical c...

Faithful Global Convergence for the Rescaled Consensus–Based Optimization

Abstract. We analyze the consensus-based optimization algorithm with a consensus point rescaled by a fixed parameter [Formula: see text]. Under minimal assumptions on the objective function and the initial data, we establish its unconditional convergence to the global minimizer....