Jagiellonian University

Boost-invariant Perfect Fermi–Dirac Spin Hydrodynamics

We analyze the effect of using the Fermi–Dirac statistics, rather than its Boltzmann approximation, in numerical simulations of perfect spin hydrodynamics of particles with spin \(1/2\). The system considered is boost invariant, transversely homogeneous, with corrections to the b...

Geriatric nutritional risk index as a potential prognostic indicator in pancreatic cancer: evidence from a systematic review and meta-analysis

Malnutrition is highly prevalent among patients with pancreatic cancer and has a substantial impact on prognosis, treatment tolerability, and quality of life. However, the prognostic significance of the Geriatric Nutritional Risk Index (GNRI), a simple and objective tool for asse...

Illness Acceptance Among Adults with Melanoma: A Prospective Observational Cross-Sectional Study

Introduction: Melanoma is a chronic disease that significantly affects patients’ daily functioning and emotional well-being. Beyond its somatic burden, it often leads to substantial changes in quality of life (QoL). This study aimed to assess illness acceptance among melanoma pat...

From ACR O‐RADS 2022 to Explainable Deep Learning

Objectives The 2022 update of the Ovarian‐Adnexal Reporting and Data System (O‐RADS) improves risk stratification of adnexal lesions; however, radiologist interpretation remains subject to inter‐observer variability and conservative diagnostic thresholds. Concurrently, deep learn...

Mixed electoral systems: The best of both worlds or the worst of both?

Abstract Mixed electoral systems combine majoritarian and proportional rules within a single institutional framework, promising what Shugart and Wattenberg (2001) called "the best of both worlds": local accountability alongside representational fairness. This article surveys the...

Vitamin K in photosynthetic organisms

Main conclusion Recently, great progress in vitamin K research in plants was made, especially on vitamin K epoxide reductase (VKOR) homolog, new functions of VK in plant plasma membrane and VK1 biosynthesis. Abstract Although vitamin K (VK) was discovered in the 1930s, only recen...

Saturated Partial Embeddings of Planar Graphs

ABSTRACT In this work, we study how far one can deviate from optimal behavior when embedding a planar graph. For a planar graph , we say that a plane subgraph is a plane‐saturated subgraph if adding any edge (possibly with new vertices) to would either violate planarity or make t...

Evolution of the Surface Composition of Graphene Oxide Films During Laser-Induced Reduction

Graphene oxide (GO) and reduced graphene oxide (rGO) are widely studied two-dimensional carbon nanomaterials for optoelectronic devices. Because the oxygen content and degree of reduction govern the electronic structure of GO-derived films, controlling the reduction process is es...

Energy Intensity Mapping of Battery-Electric vs. Diesel Heavy Haulage in Surface Mining: The Interplay of Payload Dynamics and Ambient Temperature

Decarbonizing heavy-duty transport in the mining sector requires a deep understanding of the interplay between specific energy consumption, payload dynamics, and ambient thermal stressors. This study presents an integrated, physics-informed machine learning framework to compare t...

Effect of palatal shape on dental arch relationships in unilateral cleft lip, alveolus, and palate

INTRODUCTION: Palatoplasty is a critical surgery for restoring structure and function in patients with cleft palate, but surgical scarring is considered a major factor in maxillary growth deficiency and abnormal dental arch relationships. Palatal scars can significantly alter pal...

The Impact of Road Traffic Noise on Apartment Prices in Kraków: A Hedonic Analysis of the Primary and Secondary Markets

This study examines the effect of road traffic noise on apartment prices in Kraków, treated on an equal footing with the other price-forming attributes. The analysis draws on 6244 transactions from the primary and secondary markets concluded between January 2021 and June 2022. Mu...

Hamana’s injective envelope as a maximal rigid multiplier cover

Abstract Let A be a unital $$C^*$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>C</mml:mi> <mml:mo>∗</mml:mo> </mml:msup> </mml:math> -algebra. An A -multiplier cover is a $$C^*$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup>...

Methane Capture and Hydrogen Production from Coal Mine Methane: A Sustainable Path for Energy Transition

Methane emissions from coal mines pose significant environmental and operational challenges. Methane can be released from coal seams and surrounding rock layers as a result of mining operations. These emissions pose environmental risks and can lead to fire and explosion hazards....

Evaluation of the INTERGROWTH-21st fetal growth standards in a single-center cohort of uncomplicated pregnancies in Poland

OBJECTIVES: To evaluate the applicability of the INTERGROWTH-21st prescriptive fetal growth standards for thirdtrimester biometry and estimated fetal weight (EFW) assessment in a Polish population. MATERIAL AND METHODS: This retrospective single-center cohort study included 594 u...

The expression of lysophosphatidic acid and C-reactive protein in the course of the vulvar squamous cell carcinoma and the vulvar lichen sclerosus

OBJECTIVES: In the course of the study the differences regarding both C-reactive protein immune-expression and Lysophosphatidic Acid immune-expression between the stages and histologic grades of the vulvar cancer and the differences between the group of patients diagnosed with li...