ETH Zurich

Mind the Trust Gap: Identifying (Mis)alignments in Teacher-Student Views Toward Control and Agency in K-12 Classroom AI

As Artificial Intelligence (AI)-based technologies have been integrated into school classrooms where multiple stakeholders (with different roles) interact with each other, it is critical to deeply understand stakeholder views in the classroom. In particular, prior work has not fu...

Some Remarks on Singular Capillary Cones with Free Boundary

Abstract We study singular minimizing capillary cones with free boundary. We provide a stability criterion à la Jerison–Savin and use it to prove that a minimizing capillary cone is flat when its free boundary mean curvature is non-negative and $$n\le 4$$ n ≤ 4 , or non-positive...

N,N-Dimethyltryptamine and harmine formulation alters transient EEG topography sequences near the peak of the psychedelic state

BACKGROUND: Psychoactive serotonin 5-HT2A receptor agonists are potent modulators of awareness. Influential theories propose that psychedelics alter whole-brain dynamics by increasing neural signal diversity and dynamic flexibility. Beyond temporal variability, it is an open ques...

The liver niche accelerates, while the lung niche restrains secondary spread of breast cancer

Breast cancer progression to visceral organs such as the lung and liver is associated with poor prognosis. Yet, these organs have diverse cellular microenvironments that may differentially influence cancer cell behavior. Here, we show that breast cancer metastases differ in their...

An online approach for integrated railway schedule replanning and passenger reassignment with unknown passenger reactions under hub disruptions

Major railway disruptions, such as city-wide disasters, in hub areas often persist for a long time and affect multiple routes simultaneously. Original railway schedules, including line plans, timetables, and rolling stock dispatching, become invalid and require strategic replanni...

Gradient-enhanced global sensitivity analysis with Poincaré chaos expansions

Spectral methods, also known as chaos expansions, are widely used in global sensitivity analysis (GSA), as they leverage orthogonal bases of $L^2$ spaces to efficiently compute Sobol' indices, particularly in data-scarce settings. When derivatives of the model are available, a de...

Bright‐Dark Exciton Splitting in Lead Iodide Perovskite Crystals Accessed via Quantum Beats in Photon Echoes

ABSTRACT Understanding the fine structure of excitons is crucial for optoelectronic and quantum photonic applications of lead halide perovskites. It is demonstrated that polarization‐sensitive photon echo spectroscopy in magnetic field provides a powerful method to access coheren...

Mechanism of crevice corrosion in historic riveted steel structures

Abstract Crevice corrosion is a localized form of corrosion, particularly common in riveted steel structures. While oxygen depletion and local acidification within crevices are well-established phenomenological features, the underlying reaction pathways and their spatial coupling...

Parametric phase-field brittle fracture computations with convolutional Fourier neural operators

Abstract The variational phase-field approach to fracture has emerged as a powerful framework for modeling complex fracture phenomena, yet in the computational setting its reliance on discretizations that resolve small length scales makes it very expensive for parametric studies...

Scaffolding students-AI dialogue for safe educational interactions

Abstract Adolescents are the fastest-growing and largest age group adopting Large Language Models (LLMs), tools not specifically designed for their educational, emotional, and developmental needs. Safe, pedagogically grounded AI interactions are essential for both AI literacy and...

An automated high-resolution screening platform identifies regulators of anchor cell invasion in C. elegans

Microfluidic devices are valuable tools for live imaging. However, widespread adoption of microfluidic-based screening methods has been limited by the complexity of the existing techniques. Here, we introduce a user-friendly, high-throughput, and high-resolution automated imaging...

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

ABSTRACT The functionality of colloidal quantum dots (QDs), whether in fundamental studies, optoelectronics, or emerging quantum technologies, critically depends on their surface chemistry, with organic ligands influencing nearly every aspect of their behavior. Whereas the inorga...

Complete genome sequence of Acinetobacter pittii -infecting bacteriophage GUN

ABSTRACT Bacteriophage GUN infects Acinetobacter pittii and belongs to the genus Friunavirus . Genome analysis identified a 41,754 bp genome encoding 62 putative proteins, including a depolymerase. GUN was isolated using two A. pittii strains expressing distinct capsule types in...

Slow Infrastructural Violence: The Lived Experiences of Urban Essential Workers

Abstract We examine how non‐healthcare urban essential workers constitute a vital yet undervalued social infrastructure that enables everyday life in Switzerland. Drawing on 37 (walking) interviews, the study foregrounds the lived realities of those whose reproductive labour sust...

Additive manufacturing–facilitated blow molding for functional thin-walled polymeric structures

Thin-walled structures capable of large, reversible deformation are key to multistability, origami, kirigami, and soft robotics. However, conventional fabrication techniques—including 3D printing, casting, and laser cutting—suffer from low durability, complex workflows, and restr...

Tree-like pairwise interaction networks

Abstract Modeling feature interactions in tabular data remains a key challenge in predictive modeling, for example, as used for insurance pricing. This paper proposes the tree-like pairwise interaction network (PIN), a novel neural network architecture that explicitly captures pa...

Reward reduces motor fatigability by increasing movement vigour

Abstract Reward can enhance motor performance. However, its potential to counteract motor fatigability, a reduction in motor performance during sustained movements, remains underinvestigated. This could be relevant in neurological conditions such as multiple sclerosis, where incr...

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

ABSTRACT The discovery and optimization of wide‐bandgap lead halide perovskites (LHPs) is hindered by solution‐based workflows with limited scalability. Large compositional parameter spaces present an additional challenge for materials optimization. Here, we establish an integrat...

The Bidirected Cut Relaxation for Steiner Tree Has Integrality Gap Smaller than 2

Abstract. The Steiner tree problem is one of the most prominent problems in network design. Given an edge-weighted undirected graph and a subset of the vertices, called terminals, the task is to compute a minimum-weight tree containing all terminals (and possibly further vertices...

Promotion of long-term health in early life

Noncommunicable chronic diseases (NCDs) are on the rise in high-income countries, leading to substantial morbidity and mortality and contributing to increased resource demands and healthcare costs. Early-life exposures can initiate trajectories that culminate in NCDs later in lif...