Research works

Monomial ideals whose all matching powers are Cohen–Macaulay

Abstract In the present article, we aim to classify monomial ideals whose all matching powers are Cohen–Macaulay. We especially focus our attention on edge ideals. The Cohen–Macaulayness of the last matching power of an edge ideal is characterized, providing an algebraic analog o...

Data-driven Modeling of Telluric Features and Stellar Variability with StellarSpectraObservationFitting.jl

Abstract A significant barrier to achieving the radial velocity (RV) measurement accuracy and precision required to characterize terrestrial mass exoplanets is the existence of time-variable features in the measured spectra, from both telluric absorption and stellar variability,...

The Hausdorff dimension of planar elliptic measures via quasiconformal mappings

In this paper, we obtain new bounds for the Hausdorff dimension of planar elliptic measure via the application of quasiconformal mappings, with these bounds depending solely on the ellipticity constant of the matrix. In fact, in our case studies, we find a quasiconformal mapping...

Stability of (sub)critical nonlocal spatial branching processes with and without immigration

We consider the setting of either a general nonlocal branching particle process or a general nonlocal superprocess, in both cases, with and without immigration. Under the assumption that the mean semigroup has a Perron–Frobenious-type behaviour, as well as the existence of second...

On Distributionally Robust Multistage Convex Optimization: New Algorithms and Complexity Analysis

Abstract. This paper presents an algorithmic study and complexity analysis for solving distributionally robust multistage convex optimization (DR-MCO) problems. Our main contribution is a novel nonconsecutive dual dynamic programming (NDDP) algorithm which explores different stag...

Boundary Defense Agent (BDA-BOUNDARY-DEFENSE-002) — Public release v2

A specification document package, distributed free of charge. It defines BDA-BOUNDARY-DEFENSE-002, a fail-closed boundary-control agent that validates, filters, quarantines, blocks, and conditionally releases artifacts crossing controlled runtime, persistence, or transport bounda...

At the Crossroads: Intersection of Ethnic and Socioeconomic Backgrounds in the Interplay of Perceived Teacher Discrimination, Intergroup Attitudes, and Socioemotional Outcomes

ABSTRACT Introduction Perceived ethnic discrimination from teachers is associated with poorer adolescent adjustment, yet the mechanisms underlying these associations and the extent to which responses vary across the intersection of multiple social identities remain unclear. Guide...

Agonistic interactions and vocalizations among Procellariiformes in multi-species feeding aggregations, observed through bird-borne cameras

Abstract Marine predators frequently aggregate at food sources, where interactions can range from cooperative group hunting to interference competition for resources. To investigate interactions at feeding aggregations among procellariiforms, we equipped wandering albatrosses Dio...

Response to the Correspondence Regarding “Cutaneous Metastasis From Papillary Thyroid Carcinoma Eight Years After Initial Surgery”

ABSTRACT We sincerely thank Dr. Sengul and colleagues for their insightful comments on our case report of skin metastasis in papillary thyroid cancer (PTC). They questioned the adequacy of local excision and suggested completion thyroidectomy to enable radioactive iodine (RAI) th...

Airflows redefine the cost of aerial transport in the wild

Fuel economy matters to both animals and machines, as the cost of transport can determine where, when, and how far locomotion is possible. However, established estimates of these values for animal flight come from laboratories and treat the atmosphere as constant, even though fre...

Food, fear and physics drive collective behaviour in the ocean's pelagic zone

Abstract Understanding how complex, coordinated patterns arise in animal groups has been an important theme in behavioural ecology, revealing much about the mechanisms of the evolution of behaviour. While fish schools are a well-known example, they represent just one case among n...

Atrial cardiomyopathy: from knowledge gaps to clinical impact

Abstract Background Atrial cardiomyopathy (AtCM) is increasingly recognised as an underlying atrial substrate contributing to atrial fibrillation (AF), heart failure (HF), and cardio-embolic stroke. However, diagnostic criteria, disease thresholds, and targeted treatment strategi...

Multi-predatory feeding aggregations in the Norwegian Sea: prevalence and ecological importance

Abstract Multi-predatory feeding aggregations (MPFAs) occur when several predator species concurrently exploit shared, spatially and temporally aggregated prey. Although MPFAs are well described in some marine ecosystems, their prevalence in the Norwegian Sea has historically bee...

2025 European Society of Cardiology guidelines for the management of cardiovascular disease and pregnancy

Abstract This article contextualises the 2025 European Society of Cardiology (ESC) guidelines for managing cardiovascular disease (CVD) and pregnancy in the Netherlands. The guideline addendum provides additional recommendations for situations where the ESC guidelines may not ful...

Modular van der Waals MOSFETs through layer-by-layer chalcogen substitutions

In two-dimensional transition-metal dichalcogenides (TMDCs), the local electrostatic field of the chalcogen p -orbitals dictates the crystal field splitting of the transition metal d -orbitals, stabilizing diverse electronic states from semiconducting and semimetallic to exotic t...

Structural basis for size-selective perception of chitin in plants

Plants detect microbes through pattern recognition receptors that perceive conserved microbial surface motifs known as microbe-associated molecular patterns (MAMPs). Lysin motif (LysM) receptors recognize and mediate downstream responses to chitinous MAMPs. In this study, we eluc...

Associations of food processing and dietary risk factors with colorectal cancer incidence in the NIH-AARP Diet and Health Study: A cohort study

Background Ultra-processed foods (UPF) account for >50% of energy intake by US adults. UPF intake can include dietary components linked to lower colorectal cancer (CRC) risk, such as whole grain and dairy products, and others linked to higher CRC risk, such as processed meats, po...

Exploring teacher identity formation in outdoor education: a systematic literature review

Professional identity plays a crucial role in education, influencing teaching philosophies, commitment to the profession, pedagogical choices, openness to educational reform, and overall wellbeing. However, most research on teacher identity has focused on specific disciplines, in...

Freshness Portability Agent (FPA-FRESHNESS-PORTABILITY-003) — Public release v1

A specification document package, distributed free of charge. It defines FPA-FRESHNESS-PORTABILITY-003, a strict freshness-governed boundary agent for import acceptance, receipt anchoring, watermark advancement, restoration eligibility, quarantine, and readmission across sources...

Agent Pointed Context: design records and payload specification

Companion record to the paper "Agent Pointed Context: letting a person point an AI agent at what they see, without sharing the screen" (Tomas Neira, 2026, https://doi.org/10.5281/zenodo.23382909). Agent Pointed Context (APC) is an interaction pattern in which an application expos...