Eötvös Loránd University

Neural network-assisted refinement of traditional schemes for one-dimensional scalar conservation laws

Abstract A clear link is established between conventional numerical methods and neural network approximations for solving one-dimensional scalar conservation laws. The focus is on the construction of an appropriate flux term in the case of convex flux functions for improving the...

Self-Identified Natural Wine Producers in Hungary: An Exploratory Survey of Producer Characteristics and Motivations

Natural wines are produced with minimal or no additives, utilizing organic cultivation methods and emphasizing the high-quality and unique characteristics of terroir. In the last decade, natural wines have received considerable attention; however, the number of scientific publica...

A bacterial protein inhibitor of dUTPase disrupts zebrafish embryogenesis through a conserved active‐site mechanism

Abstract Deoxyuridine triphosphatase (dUTPase) is essential for DNA replication fidelity and embryonic development in metazoa, yet whether a protein inhibitor can acutely disrupt dUTPase function in a living vertebrate has not been tested. The Staphylococcus aureus Stl protein in...

Holocene summer and winter temperature trends and excursions in East-Central Europe from Carpathian pollen records

This study reconstructs summer and winter temperatures for East-Central Europe (ECE) over the last 12 ka using pollen records from five mid-altitude sites in the Carpathian Mountains. Seasonal reconstructions were combined into composite records and statistically evaluated to ide...

Couples can be Tractable: New Algorithms and Hardness Results for the Hospitals/Residents Problem with Couples

Abstract We study the Hospitals/Residents problem with Couples ( hrc ), where a solution is a stable matching or a report that none exists. We present a novel polynomial-time algorithm that can find a near-feasible stable matching, where hospitals’ capacities are adjusted by at m...

Simultaneous Network Design With Restricted Link Usage

ABSTRACT Given a digraph with two terminal vertices and as well as a conservative cost function and several not necessarily disjoint color classes on its arc set, our goal is to find a minimum‐cost subset of the arcs such that its intersection with each color class contains an ‐...

Influence of soil physicochemical properties on the distribution and variability of 137Cs activity concentrations in urban soils of Ózd, Hungary

Abstract Urban soils exhibit substantial heterogeneity in their physicochemical properties influencing the sequestration of 137 Cs. This study investigates the distribution of 137 Cs in urban soils from Ózd, Hungary, and its relationship with soil properties using multivariate st...

Viral Metagenomic Analysis of Bat Fly Pupae

Bats are important reservoirs of zoonotic viruses, yet the role of their obligate ectoparasites, particularly bat flies, in viral maintenance and transmission remains poorly understood. Although viral sequences have been detected in adult bat flies, vertical transmission to their...

Nature-based Learning of Adults: A Scoping Review

Background Nature-based learning (NBL) has gained attention across experiential, outdoor, and sustainability-oriented education; however, research on adult learning in natural environments remains fragmented. Purpose This scoping review synthesizes 32 empirical studies published...

Coupling between statistical learning and interference suppression

Abstract In an ever-changing environment, synchronizing automatic and controlled behaviors is essential for successful adaptation. Yet, the relationship between these behaviors is often debated, partly because of the diverse approaches used to investigate them. The present study...

Longitudinal evidence for decreasing statistical learning abilities across childhood

Abstract Statistical learning enables us to identify patterns in our environment and predict future events, thereby supporting a range of motor, cognitive, and linguistic skills. Despite its significance, the developmental trajectory of statistical learning has remained unclear d...

Multiple overlapping SNARE complexes drive endosome maturation in Drosophila nephrocytes

ABSTRACT Endosomal maturation determines whether internalized cargo is recycled or degraded, yet the molecular logic governing early endosomal fusion remains poorly defined. This process is often depicted as a linear Rab5-to-Rab7 transition mediated by a single, ordered SNARE pat...

Integrative Faunistic, Ecological, and Molecular Study of Harpirhynchus dusbabeki and Blankaartia acucutellaris Associated with European Passerines

Parasitic skin mites associated with wild birds are understudied members of host–parasite systems in Europe despite their ecological importance, potential role as disease vectors, and effects on host fitness. Using a multidisciplinary approach combining faunistic, ecological, and...

Dog Breeds for the Future: Theoretical Assessment of Strategies for Enhancing the Behavioural Reliability of Existing Dog Breeds, or Developing New Ideal Urban Companion Dogs

The original function of many dog breeds no longer fits the requirements of an easy-going companion. Caretakers can also be overdemanding regarding their dogs’ ability to cope with societal expectations. We propose and evaluate four strategies for readjusting the dog–human relati...

Complex effects of sex reversal on reproductive success in wild frogs

Sex reversal, when the environment overrides genotypic sex determination, may hasten or delay climate-driven extinction in ectothermic animals, depending on sex-reversed individuals’ reproductive ability and offspring viability. Empirically, next to nothing is known about these t...

Stellar discs and intermediate-mass black holes in galactic nuclei – I. Fragmenting the disc in an isotropic stellar potential

Abstract The origin of the complex orbital structure of young massive stars at the Galactic centre remains an open question. If these stars formed in a single episode from a gaseous accretion disc, they may initially have constituted a single, coherently rotating stellar disc. We...

Spheroidal Resampling Analysis of High-Redshift Gamma-Ray Burst Spatial Densities

Gamma-ray bursts (GRBs) are bright transient sources that can be observed at high redshift. They can therefore be used as tracers of the distant large-scale structure, although the GRB redshift sample is sparse and affected by strong selection effects. We analyze the three-dimens...

Kids These Days! A Cross-Temporal Meta-Analysis of Changes in Emotional and Behavioral Problems of Population-Based Samples Over the Past Decades

Abstract There is a general belief that mental health problems are increasing in younger generations, though little objective comparisons exist. The current meta-analysis examines changes in subclinical mean-level overall symptom burden and shifts in specific domains among popula...

flexiAsCas12a and other Cas12a variants enhance the applicability of Cas12a nucleases in prime editing

Abstract Background Amongst the genome manipulation tools based on the versatile CRISPR-Cas system, prime editing is the most prominent one as a method that enables precise insertions, deletions, and substitutions without inducing double-strand breaks. Cas12a nucleases are widely...

How Norms Depend on the Presence and Status of Observers: The Relational Contingency of Everyday Behaviors in 90 Societies

Norms are fundamental to social life, but basic questions about how they are affected by social context remain. Specifically, how do normative constraints depend on the presence and status of observers, and how do such relational contingencies vary across cultures? Using data fro...