Technische Universität Berlin

A quantitative central limit theorem for the simple symmetric exclusion process

A quantitative central limit theorem for the simple symmetric exclusion process (SSEP) on the d-dimensional discrete torus is proven. The argument is based on the comparison of the generators of the density fluctuation field of the SSEP and the generalized Ornstein–Uhlenbeck proc...

Spectral tuning and signaling of diverse and far red–sensitive rhodopsins in mantis shrimp eyes

Stomatopod crustaceans (mantis shrimps) have extraordinary eyes with unmatched visual rhodopsin diversity, but their potential for broad color detection remains unclear. Here, we report that 17 rhodopsins, mostly from the midband eye region, are involved in color sensing and func...

In-flight receiver calibration of the Ganymede Laser Altimeter (GALA) by passive Earth observations

Abstract. Post-launch characterization of the receiver telescope of the laser altimeter is essential for achieving precise georeferenced planetary measurements and for radiometric calibration to passively measure surface reflectance. For the Ganymede Laser Altimeter (GALA) aboard...

How reason found its common sense in Latin Aristotelianism: Commentary practice and the problem of universality in latin aristotelianism

Argument A history of “common sense” concerns as much the epistemological concept as the very architecture of human rational judgment. The historian of medieval philosophy Étienne Gilson (1884–1978) cast nineteenth-century Jesuit appeals to common sense as a costly defense agains...

MS-CAFNet: enhancing 3D point accuracy of laser scanners through a multi-stage self-attention network for applications in construction

Abstract We propose the MS-CAFNet algorithm, featuring an integrated pipeline that combines per-room geometric registration with a multi-stage convolutional network and symmetry test-time augmentation. This method enables the reduction of 3D point accuracy uncertainty associated...

Learning Barycenters from Signature Matrices

Abstract. The expected signature of a family of paths need not be a signature of a path itself. Motivated by this, we consider the notion of a Lie group barycenter introduced by Buser and Karcher to propose a barycenter on path signatures. We show that every element of the free n...

Phase control of interfering stimulated Raman pathways in the XUV regime

Abstract Coherent control uses interference between quantum pathways to enhance or suppress transitions to a target quantum state. In stimulated Raman excitation, such control can be achieved through interference between two indistinguishable pathways connecting the same initial...

Detection of Legionella Bacteria Using a Silicon‐Based Photonic Microring Resonator Biosensor Enhanced by Dielectrophoresis

Silicon-based photonic biosensors, such as microring resonators and Mach-Zehnder interferometers, offer label-free detection, high sensitivity, and full compatibility with semiconductor fabrication processes. Yet, the detection of living bacteria remains difficult due to the limi...

Investigation of glacier mass balance based on multi-source observation in the Karakoram over the past 25 years

The “Karakoram Anomaly” — the atypical stability of glaciers in a warming climate—has introduced considerable uncertainty into projections of regional water resources. However, the resilience of this anomaly under sustained climate forcing remains poorly quantified. In this study...

Pipes, power, policy: Algeria's strategic choices for gas, electricity, and hydrogen in the energy transition

This work investigates the cost-optimal design of Algeria's electricity and hydrogen transport infrastructure in 2050. Using the open-source PyPSA-Earth framework, a spatially and temporally resolved sector-coupled energy system model is employed to analyse the repurposing of exi...

Faithful Universal Graphs for Minor-Closed Classes

Abstract. It was proved by Huynh et al. [ Universality in Minor-Closed Graph Classes, preprint, arXiv:2109.00327, 2021] that any countable graph containing every countable planar graph as a subgraph has an infinite clique minor. We prove a finite, quantitative version of this res...

Nutrition and health status in the follow-up of the risks and benefits of a vegan diet (RBVD) study

Abstract To examine health risks and benefits of a vegan diet, the RBVD study was conducted in 2017 and followed up in 2021. The present paper evaluated dietary nutrient intake and status together with systemic cardiometabolic health-related biomarkers and examinations among vega...

Enantioselective Access to the Parent Helicenols by Kinetic Resolution through Cu–H-Catalyzed Si–O Coupling

Abstract A Cu–H-catalyzed kinetic resolution of the parent [n]helicenols (n = 5, 6) through enantioselective dehydrogenative silylation with a secondary silane is reported. The dihydrosilane eventually employed is prochiral, thereby simultaneously establishing stereogenicity at t...

Influence of Photonic Crystal Size and Lattice Constant on the Lasing Performance of UV-C PCSELs

Abstract Semiconductor lasers are compact, high-power coherent light sources across a broad wavelength range in the electromagnetic spectrum, including visible and infrared. Despite significant progress, they have yet to achieve the same performance for ultraviolet-C (UV-C) wavel...

Linking key features of commercial lithium-ion cells to thermal runaway effects

Predicting the thermal runaway (TR) characteristics of lithium-ion battery (LIB) cells based on easily accessible key cell features — such as i) cell format, ii) cathode type, iii) cell capacity and/or energy, and iv) state of charge (SOC) — would be highly beneficial. Herein, 10...

Depletion of regulatory T cells breaks self-tolerance and induces epidermolysis bullosa acquisita in resistant C57BL/6J mice

Pemphigoid diseases (PDs) are antibody-mediated autoimmune blistering diseases caused by loss of tolerance to basement membrane proteins such as type VII collagen (COL7), triggering pathogenic T and B cell responses. The contribution of regulatory T cells (T regs ) to disease res...

Universal physics-informed machine learning framework for the prediction of porosity defects in high-power laser beam welding with different metallic materials

High-power laser beam welding (LBW) is a widely used joining technique for metallic materials. However, porosity defects frequently arise during the process, leading to significant degradation of weld properties. Accurate prediction of porosity remains challenging due to the high...

Complementary Eigen–Zundel Interpretation Reconciles Thermodynamics and Spectroscopy of Excess Protons in Aqueous HF Solutions

ABSTRACT Aqueous solutions of HF and HCl behave very differently at intermediate concentrations: HCl dissociates completely, whereas HFonly partially dissociates and forms bifluoride (). This should lead to markedly different excess‐proton spectra in HF and HCl solutions, in cont...

The correlations of the urban environment with walking and cycling in Sub-Saharan Africa: Systematic review

Walking and cycling are crucial for promoting sustainable urban mobility, public well-being, and environmental benefits. However, in Sub-Saharan Africa (SSA), the uptake of these active transportation modes remains influenced by a range of built environment and socio-economic fac...

Droplets sitting on thin elastic sheets: a study with the boundary element method

Abstract Elasto-capillarity of a droplet wetting an elastic sheet provides an interesting system, both for fundamental and applied research. The droplet sinks into the sheet and assumes the shape of a lens. To determine the equilibrium shape in simulations, we formulate a boundar...