University of Copenhagen

Advancing phosphorus foliar fertilization with nano-hydroxyapatite: mechanisms and agricultural relevance

<title>Abstract</title> Phosphorus (P) use in agriculture remains inefficient and poses long-term environmental concerns. We investigate the uptake, redistribution, and efficacy of foliar-applied nano-hydroxyapatite (nHAp) in P-deficient barley (Hordeum vulgare), aiming to clarif...

Inter-Rater Agreement in PD-L1 (22C3) Expression Evaluation in Colon Cancer

Programmed death-ligand 1 (PD-L1) is a predictive biomarker in various cancers. In colorectal cancer, PD-L1 expression evaluation is not part of the routine examination and standardized evaluation methods are lacking. This study aimed to examine inter-rater agreement in PD-L1 exp...

Ryugu and Bennu preserve primordial isotopic heterogeneity absent from the meteorite record

Ivuna-type (CI) carbonaceous chondrites are commonly used as proxies for the composition of the planet-forming disk because their chemical abundances resemble those of the solar photosphere. However, their isotopic uniformity may reflect pervasive alteration and isotopic averagin...

The neglected Reinhardt’s glyptodontine from Lagoa Santa, Brazil: a reassessment of taxonomic status and description of a new species of Glyptotherium

Abstract This study reexamines a glyptodontine skull, NHMD 2045557, from Lagoa Santa, Brazil. Initially misidentified as the type of Hoplophorus euphractus by J. Reinhardt, it was later referred to Glyptodon clavipes. This identification remained unchallenged for decades. Recent...

The Policy Umwelt: How AI Problem Representations Render Governance Alternatives Unthinkable

This paper investigates how AI narratives actively constrain the horizon of conceivable governance options. Moving beyond the established finding that narratives influence policy, we argue they fundamentally prefigure the scope of the politically thinkable by creating what we ter...

Current Use, Monitoring and Reversal of Neuromuscular Block in Pediatric Anesthesia and Intensive Care: A Web‐Based Cross‐Sectional ESAIC Survey

BACKGROUND: Neuromuscular blocking agents are recommended by the European Society of Anaesthesiology and Intensive Care (ESAIC) and European Society of Paediatric Anaesthesia (ESPA) for facilitating tracheal intubation in children. Despite these recommendations, real-world data o...

Hyperbolic confinement: self-assembly of asymmetric diblock co-polymers on triply periodic minimal surfaces

Abstract We investigate the self-assembly of compositionally asymmetric AB diblock co-polymers confined to thin hyperbolic films on the three cubic minimal surfaces: the primitive, the diamond and the gyroid. To analyse and quantify the assemblies, we use a computational pipeline...

From Neuropeptides to Toxins: Illuminating the Origins of Venom Complexity in Cone Snails

Abstract New genes and gene functions are key drivers of evolutionary innovation. Venomous animals, such as cone snails, provide striking examples of gene innovation, yet the mechanisms by which toxins arise remain poorly understood. Using the Conus textile genome, we uncover how...

GRB 260310A / SN 2026fgk: A Multi-Wavelength Study of a Nearby Underluminous Long GRB and SN with a Complex Afterglow

Abstract We present a comprehensive multi-wavelength study of GRB 260310A / SN 2026fgk, a nearby (z = 0.153), long-duration gamma-ray burst (GRB) with an exceptionally underluminous prompt γ-ray emission and a Comptonized spectrum. The burst occurred at the edge of a blue host ga...

Living the Life of No One: Electroconvulsive Treatment as Mnemonic Metaphor

The article investigates how electroconvulsive therapy (ECT) is represented in the following four literary works of the 21st century: October’s Child, Store Kongensgade 23, The Parakeet, and I Am What I Remember. The article argues that electroconvulsive therapy is treated as a m...

Unveiling the “Gray Zone”: Characterizing Young People's Moderate STEM Identities

ABSTRACT Understanding how students identify with STEM (Science, Technology, Engineering, Mathematics) is crucial for fostering broader and more equitable participation within these fields. While existing research has focused on students who either strongly identify with STEM or...

European Network for Optimization of Veterinary Antimicrobial Therapy (ENOVAT) guidelines for antimicrobial and non-steroidal anti-inflammatory drug use in bovine respiratory disease

<ns5:p> Background Bovine respiratory disease (BRD) is a major cause of morbidity, mortality, impaired welfare, production loss, and antimicrobial use in cattle. These European Network for Optimization of Veterinary Antimicrobial Therapy (ENOVAT) guidelines provide evidence-based...

Rehabilitation After Stroke in a Transition From Hospital to Municipality—Impact of Amount of Rehabilitation

ABSTRACT Background Stroke is a leading cause of long‐term disability that impairs physical function and health‐related quality of life (HRQoL). Rehabilitation during and after hospitalization is essential for promoting neurological recovery and functional independence. This stud...

Precision monitoring of leaf area index and chlorophyll content of major field crops in Northern Europe using UAV remote sensing and radiative transfer modeling

Abstract Purpose Long-term monitoring of crop biophysical and biochemical traits remains challenging in high-latitude regions due to short growing seasons, frequent cloud cover, and highly variable weather. In this context, unmanned aerial vehicles (UAVs) offer flexible, high-res...

Validation of a handheld smartphone markerless method for quantifying thoracolumbar flexion–extension range of motion in horses at trot

Abstract Background Back pain and poor performance in horses are difficult to assess objectively and thoracolumbar flexion‐extension range of motion (FE ROM ) is not reliably evaluated by subjective observation alone. A handheld, smartphone‐based markerless computer vision system...

Comparing the effect of faecal microbiota and faecal filtrate transplantations on intestinal health in weaned piglets

<title>Abstract</title> Background Faecal microbiota transplantation (FMT) and faecal filtrate transplantation (FFT) have emerged as promising methods to prevent intestinal dysbiosis and diarrhoea in piglets after weaning. The aim of this study was to compare the effects of FMT a...

Stellar Interpretation of Meteoritic Data and PLotting for Everyone (SIMPLE): Isotope Mixing Lines for Six Sets of Core-collapse Supernova Models

Abstract Bulk meteorites and their inclusions exhibit, for many chemical elements, isotopic variability produced by nucleosynthetic events in stars and supernovae before the formation of the Sun. While the exact astrophysical origins of these variations are still a matter of deba...

Stable and Active AuCu and AuPd Electrocatalysts for Platinum-Free Oxygen Reduction Reaction: Design Principles from Ligand–Strain Coupling and Gold Surface Segregation

Abstract Surface–subsurface partitioning of alloying elements affects stability, strain, and adsorption energetics in heterogeneous catalysis yet remains difficult to control. Here, we use first-principles calculations and atomistic modeling to show that AuM binary alloys (M = Cu...

On the History of Hepatic Vein Catheterization

ABSTRACT Hepatic vein catheterization (HVC) in man was first performed 80 years ago in the wake of right‐sided heart catheterization. Several new methods, recognitions and concepts followed, especially the indirect Fick‐method for determination of splanchnic blood flow. Five year...

Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early Mars

Abstract The next great leap in Martian exploration is the return of samples to Earth. Maximizing their scientific value requires non‐destructive analytical techniques for early three‐dimensional characterization. Neutron computed tomography (CT), highly sensitive to hydrogen, co...