Ruhr University Bochum

Classification of Lagrangian planes in generalised Kummer manifolds

Abstract We prove that the class of a line contained in a Lagrangian plane on a dimension 2 n hyperkähler manifold X of Kummer type has Beauville-Bogomolov-Fujiki square $$-\frac{n+1}{2}$$ - n + 1 2 in "Equation missing" and order 2 in the discriminant group of $$H^2(X,\mathbb {Z...

Intracavity THz Generation Using a Thin Lithium Niobate Plate in a Compact Kerr-Lens Mode-Locked Yb:CALGO Bulk Oscillator

Abstract We demonstrate intracavity terahertz (THz) generation via optical rectification in a 50-µm-thick lithium niobate crystal placed inside a compact diode-pumped Kerr-lens mode-locked (KLM) Yb:CALGO bulk oscillator. The oscillator operates at a repetition rate of 85 MHz and...

On the modelling of oblique firehose instabilities in regularised kappa plasmas using ALPS

In situ measurements in space plasmas indicate that the velocity distributions of charged particles are not in thermal equilibrium, deviating from a standard Maxwellian mainly due to anisotropies and suprathermal populations which enhance high-energy tails. Although the standard...

On a trust metric for stochastic multi-objective model-based damage localisation

Model-based structural health monitoring (SHM) is commonly applied to identify the position and extent of potential damage. This is achieved by updating damage parameters to match measured dynamic responses, such as modal properties. Local reductions in stiffness in the updated m...

The Mader model of muscle energy metabolism simulates key metabolic exercise phenomena

Energy metabolism matches adenosine triphosphate (ATP) resynthesis to hydrolysis even during abrupt transitions such as exercise onset. In 1984, Alois Mader proposed a mechanistic model that captures this regulation through 33 coupled differential equations linking oxidative phos...

Predicting the Reactivity of Acyclic Silylenes and Germylenes in Hydrogen Activation Using Machine Learning

ABSTRACT Heavier carbenes can mimic transition metals in activating small molecules and strong bonds. Incorporating this ability into catalytic cycles demands careful, experimentally challenging tuning of their molecular properties via substituent variation. This study employs co...

Obesity is more strongly associated with physical performance and body composition than sarcopenia in patients with spondyloarthritis

Abstract Objectives Integrated data on body composition, objective physical performance and daily physical activity are limited in spondyloarthritis (SpA). The objective of this study is to describe DXA-derived body composition phenotypes and examine their cross-sectional associa...

Supporting AI Readiness Through Digital Workflows in Materials Science

Materials science produces heterogeneous data across experiments, simulations, and industrial processes that often remain bound to local formats, manual procedures, and project‐specific software. Digital workflows address this fragmentation through explicit, repeatable, and machi...

Tectono-magmatic–volatile coupling in postcollisional giant porphyry Cu formation: Evidence from slab tearing and mantle inputs at Qulong, Tibet

The origin of postcollisional porphyry copper deposits (PCDs) within thickened crust remains debated, particularly regarding the coupling between tectono-magmatic–volatile evolution and ore formation. At Qulong, Tibet, new geochemical and isotopic data across four Miocene intrusi...

Diagnosing autoimmune encephalitis in psychiatry: clinical recommendations and unresolved challenges from the GENERATE network

Psychiatric syndromes can be caused by underlying autoimmune encephalitis (AE). This represents a diagnostic challenge at the interface of psychiatry and neurology. While AE mostly manifests with a combined, complex neuropsychiatric syndrome, some patients with AE may (initially)...

Green space exposure predicts manic episodes in bipolar disorder: one year longitudinal analysis using smartphone-derived GPS data

Abstract Urban living is linked to increased psychiatric morbidity, while green spaces may protect mental health via stress-buffering effects. Yet, the role of green space exposure in the onset of affective episodes in bipolar disorder (BD) remains unclear. Using 12 months of GPS...

Nonequilibrium Formation of Cyanophosphine (H2PCN)─The Simplest Phosphorus-Containing Nitrile─in Interstellar Ice Analogues

Abstract The detection of phosphorus-bearing molecules along with the high abundance of nitriles in interstellar and circumstellar environments suggests that phosphorus-containing nitriles may form under astrophysical conditions; however, their formation mechanisms have remained...

Balancing Teacher and Student Agency: Co-Orchestration Tool Design Supporting Real-Time Dynamic Pairing

In human-AI interaction, respecting user agency is essential for fostering trust and sustaining effective use of technology. In educational settings, dynamically integrating individual and collaborative learning offers pedagogical value by supporting personalized, self-paced lear...

Deep Brain Stimulation Modulates Nucleus Accumbens Theta-Band Power in a Rodent Model of Schizophrenia

Background/Objectives: Deep brain stimulation has proven a powerful treatment option for various neuropsychiatric diseases. In psychiatry, this is particularly relevant for schizophrenia, where up to one third of patients do not respond to current treatment options. To further un...

De la Pampa al populismo: retóricas de derecha en la prensa gauchesca: Luis Pérez e Hilario Ascasubi

Resumen Este artículo analiza la función política de la literatura gauchesca rioplatense del siglo xix a partir de El Torito de los Muchachos (1830), de Luis Pérez, y Paulino Lucero (1872), de Hilario Ascasubi. A partir de una perspectiva narratológico-discursiva, muestra cómo am...

Eschatologia Iranica IV: Automated Judgment in Zoroastrian Eschatology; The Way Činwad Bridge Works

Abstract The Zoroastrian eschatological bridge, known as Činwad, is razor-thin for the wicked, while the righteous can cross it easily. The present article demonstrates that some narratives describe this transformation as a revolving movement of the bridge’s deck. By assembling d...

A structural cardiac pathway mediates the risk of ischemic heart disease from TyG-related indices: A prospective cohort study

The triglyceride-glucose (TyG) index and its derivatives are surrogate markers of insulin resistance and are closely associated with cardiovascular risk. However, whether and to what extent they are associated with IHD risk through subclinical cardiac remodeling remains unclear....

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has ev...

Electrification of polymer microfluidics by green femtosecond reductive laser sintering of copper(II) oxide

To date, femtosecond reductive laser sintering of copper(II) oxide for the maskless and vacuum-free production of conductive copper has been investigated using infrared lasers. Optical measurements of the precursor and copper layers conducted in this study demonstrate higher abso...

Empathy for pain processing in individuals with elevated internet addiction scores: an event-related potential study

Abstract This study aimed to comprehensively elucidate patterns of empathy impairment using self-report, performance-based, and electrophysiological measures, alongside two cognitive measures, in individuals with elevated internet addiction (IA) scores (HIA, n = 20) compared to t...