Korea University

Variational Auto Encoder for automated structure segmentation of materials

Atomic-scale structural heterogeneity plays a crucial role in determining the properties of nanomaterials and complex energy systems. High-resolution STEM imaging provides critical insights into these structures, but conventional segmentation techniques often struggle with intric...

Male Sex, Early Postoperative C-Reactive Protein and Prolonged Hospital Stay After Lung Resection in Older Patients: A Retrospective Cohort Study

Background/Objectives: Older patients make up a growing share of the lung-resection workload, and C-reactive protein measured in the first days after operation is used to judge recovery. Whether the same concentration means the same thing in older men and older women is not estab...

Wireless Monolithic Tandem Leaf for Semi-Artificial Photosynthesis

Abstract Biocatalytic semi-artificial photosynthesis enables selective solar-to-chemical conversion by harnessing photoelectrocatalytic platforms to drive redox biocatalysis. However, the reliance of most photoelectrochemical (PEC)-based devices on transparent conductive oxides (...

Judging ratio increases and decreases: ignoring asymmetric sensitivity

People frequently judge the consequences of percentage increases and decreases in ratios, such as changes in speed, productivity, and energy efficiency. Prior research has shown that people often treat nonlinear ratio relationships as linear. The current research examines an impo...

Transport Productivity, Hydrogen Innovation, and Environmental Sustainability: Evidence From High‐Income Economies in Achieving SDG Targets

ABSTRACT Environmental sustainability has become a major policy challenge for high‐income economies, particularly as expanding transport systems increase energy demand and ecological pressure. This raises concerns about the compatibility of economic efficiency with the Sustainabl...

Integrated optimization of refrigerant distribution control and air-side geometry for compact two-row multi-pass microchannel evaporators in electric vehicles

With the transition toward electric vehicles, the demand for efficient thermal management has increased. Microchannel evaporators for vehicle air conditioning must deliver high cooling capacity within a limited packaging space, but refrigerant maldistribution in two-row, multi-pa...

Adaptive Behavior Development and Autism Outcomes: A Comparison of Elevated- and Low-Likelihood Cohorts

Children born low-birth-weight (LBW) or with autistic siblings may show differences in their developmental trajectories, including higher rates of autism and lower levels of adaptive behavior skills. Parsing out developmental differences in these groups could help hone screening...

Association between introduction of 13-valent pneumococcal conjugate vaccine and burden of hospitalized adult pneumococcal disease in South Korea – a population-based retrospective database study

Abstract Background Information on the burden of pneumococcal disease and its association with vaccination in South Korea remains limited. This study aims to examine the incidence rate, case fatality rate, healthcare resource utilization and costs of pneumococcal disease in adult...

Semitransparent Organic Photovoltaic Achieving 12.98% Efficiency and 33.95% Average Visible Light Transmittance by Employing PPT‐3 With Large Bandgap and Narrow Photon Harvesting Range

ABSTRACT A broad bandgap polymer PPT‐3 with optical bandgap of 2.25 eV and narrow photon harvesting range of 90 nm was deliberately selected to match with one narrow bandgap acceptor BTP‐eC9 for preparing semitransparent organic photovoltaics (ST‐OPVs). The optimal weight ratio o...

How Healthcare Systems Show Change at the Subnational Level: A Typology Study Based on China's Provincial Data (2012–2019)

ABSTRACT There is a conspicuous literature classifying healthcare systems into different types, yet evidence on how healthcare systems differ regionally within the same country is still scant and scattered. This article aims to fill the gap by creating a typology of healthcare sy...

Surfactant-Assisted Colorimetric Signal Enhancement in Paper-Based Glucose Sensing

Abstract Paper-based colorimetric sensors offer a low cost and accessible platform for point-of-care (POC) analysis, but enzyme activity loss during coating and drying can weaken analytical signals and require high enzyme loadings or complex immobilization procedures. Although su...

Carleson measures for weighted Bergman–Zygmund spaces

Abstract For $$0 0 < p < ∞ , $$\Psi :[0,\infty )\rightarrow (0,\infty )$$ Ψ : [ 0 , ∞ ) → ( 0 , ∞ ) and a finite positive Borel measure $$\mu $$ μ on the unit disc $$\mathbb {D}$$ D , the Lebesgue–Zygmund space $$L^p_{\mu ,\Psi }$$ L μ , Ψ p consists of all measurable functions f...

Sleep Duration and Health Outcomes by Sex in the KoGES Ansan Cohort: A Cross-Sectional Interaction Analysis

Objective: To test whether sex modifies the association between habitual sleep duration and health outcomes in middle-aged Korean adults.Methods: We analyzed cross-sectional data from 3,709 participants in the Ansan arm of the Korean Genome and Epidemiology Study Phase 2 (2003–20...

Charting the life of Billboard hits through memory, turnover and predictability

Abstract Rankings shape the visibility and success of cultural products, yet their temporal dynamics remain underexplored when comparing distinct ranked objects within the same domain. Here, we use nearly seven decades of Billboard Hot 100 songs and six decades of Billboard 200 a...

A heat-network diagnostic framework for climate-responsive land-use planning: long-term evidence from the Seoul Metropolitan Area

Extreme heat poses a critical challenge for urban land-use planning, yet most urban heat island studies remain focused on static hotspot mapping with limited planning integration. This study develops a structured heat-network diagnostic framework to examine how land-use change an...

Molecular Size as a Constraint Rather Than a Design Principle: A Scoping Review of Departures from the Antibody/Small-Molecule Reference Model among FDA-Approved Oncology Antibody-Class Agents and Small-Molecule Protein Kinase Inhibitors

Background. In 2006, Imai and Takaoka set out a reference model contrasting monoclonal antibodies (mAbs) with small-molecule inhibitors, stating that mAbs “can only act on molecules that are expressed on the cell surface or secreted” whereas small molecules “can therefore be deve...

Defense diplomacy and arms transfers: Demonstrating time-lagged effects

This study empirically examines the relationship between high-level defense diplomacy and bilateral arms transfers. Using GDELT data, the study constructs a new measure of defense-diplomatic activities and combines it with Stockholm International Peace Research Institute bilatera...

Metal cofactor-level chassis engineering enables aerobic expression of tungsten formate dehydrogenases in Escherichia coli

Tungsten-dependent formate dehydrogenases are among the most active biological catalysts for carbon dioxide reduction, but their production is limited by complex metal cofactor requirements and poor compatibility with standard expression hosts. Here, we address this limitation by...

Improving entanglement resilience in quantum memories with error-detection-based distillation

The degradation of entanglement in quantum memories due to decoherence is a critical challenge for scalable quantum networks. We present an entanglement distillation protocol based on the [[4, 2, 2]] quantum error-detecting code, deriving analytical expressions for its output fid...

Composition-Tuned PdPt–WO3 Yolk–Shell Heterostructures with Engineered Catalytic Interfaces for Selective Isoprene Detection

Abstract Reliable isoprene detection is critical for personalized healthcare; however, achieving molecular discrimination at trace concentrations remains challenging. Herein, we report a one-pot spray pyrolysis strategy for the precise composition engineering of bimetallic PdPt n...