Ewha Womans University

Thin Thoracodorsal Artery Perforator Free Flap for Scalp Resurfacing After Malignant Skin Tumor Excision

ABSTRACT Background Scalp defects after malignant tumor excision often require free tissue transfer for durable coverage. The thoracodorsal artery perforator (TDAP) flap remains underused despite its suitability for thin elevation. Methods Fourteen patients (6 men, 8 women; mean...

Dual northward overseas radiation from Japanese islands shaped the phylogeography of North-East Asian tree frog

The tree frog Dryophytes japonicus has a broad geographic distribution in northeastern Asia, comprising two major genetically divergent clades whose geographic boundary is located within the Japanese mainland. However, the evolutionary and adaptive mechanisms underlying this wide...

Health-related quality of life in patients with spinal muscular atrophy receiving nusinersen and their caregivers: a cross-sectional study

Spinal muscular atrophy (SMA) is a rare neuromuscular disorder characterized by progressive motor decline. Although nusinersen has improved survival and motor outcomes, patients and caregivers continue to face substantial medical and psychosocial challenges. As treatment goals ha...

Ethical, legal, and societal implications in xenotransplantation (ELSI): a Korean regulatory perspective

Xenotransplantation is regarded as a monumental breakthrough with the potential to resolve the persistent crisis of organ shortages. However, its implementation presents formidable ethical, legal, and societal challenges, particularly regarding the risks of novel xenozoonotic inf...

Parametric study for an ammonia decomposition reactor design using computational fluid dynamics simulation

Ammonia is a promising carbon-free hydrogen carrier for solid oxide fuel cell (SOFC) systems, requiring efficient pre-decomposition before stack supply. This study combined experimentally derived reaction kinetics of ammonia decomposition with computational fluid dynamics (CFD) t...

Quantum Dot-Induced Kinetic Bottleneck in Singlet Exciton Relaxation of Conjugated Polymer Aggregates

Abstract We designed hybrid aggregate model systems with cascade energy alignment from conjugated polymers (CPs) to quantum dots (QDs) to investigate the effects of QDs on CP singlet (S1) excitons. Radiative recombination of S1 excitons occurs within 1 ps in the chlorinated CP/QD...

An omnichannel strategy development framework leveraging customer opinion divergence using large language models and explainable AI

Successful omnichannel retail management requires integrated strategies because customers evaluate product aspects differently across online and offline channels. However, prior research has relied on macro-level or qualitative analyses that cannot quantify which specific aspects...

Effect of Music-Based Interventions in Cardiac Rehabilitation

Objective: Cardiac rehabilitation (CR) is a multidisciplinary program that integrates supervised exercise, education, and lifestyle modification to support recovery. Music-based interventions have gained increased attention because of their potential therapeutic effects on psycho...

Gait parameters and plantar pressure estimation from the prosthesis evaluation questionnaire using a synthetic-data-enhanced supervised learning model: A proof-of-concept study

Understanding the impact of lower limb prostheses on gait is crucial for improving users’ quality of life. To this end, quantitative gait analysis provides objective and detailed information but is time-consuming and resource-intensive, whereas qualitative usability and ergonomic...

Association of oral health with incident pancreatic cancer among individuals with atrial fibrillation: a population-based cohort study

Modifiable factors associated with pancreatic cancer risk in atrial fibrillation (AF) populations remain poorly defined. We aimed to evaluate the associations of oral health status and oral hygiene behaviors with incident pancreatic cancer in individuals with AF. Using the Korean...

Body Composition and Physical Activity are Associated With Prediabetes in Childhood, Adolescent, and Young Adult Cancer and Hematopoietic Cell Transplantation Survivors

ABSTRACT Survivors of childhood, adolescent, and young adult (CAYA) cancer and hematopoietic cell transplantation have an excess risk of prediabetes and cardiovascular disease. Though not well characterized among CAYA survivors, cancer‐directed therapies may alter body compositio...

Chemically Initiated Single-Module Afterglow Imaging via Lesion-Microenvironment-Activated Cyanine–Fe Coordination

Abstract Afterglow luminescence imaging offers high sensitivity, deep-tissue readability, and persistent emission for image-guided surgery, but most current probes still require external energy activation, limiting autonomous lesion reporting and increasing the risk of off-target...

Coupling Grain Architecture Control With Oxygen‐Vacancy Suppression in Ultra‐Large Single‐ and Quasi‐Single‐Crystal Ni‐Rich Cathodes

ABSTRACT Single‐crystalline Ni‐rich layered oxide cathodes exhibit superior cycling and thermal stability over conventional polycrystalline counterparts by eliminating grain‐boundary‐associated degradation. However, the extended Li + diffusion length in single crystals limits pra...

Dynamics of Bacterial Communities and Predicted Functional Profiles During Hyperthermophilic Composting of Anaerobically Digested Sludge

Hyperthermophilic composting (HTC) is a promising approach for rapidly stabilizing organic waste and valorizing municipal biological residues; however, the microbial mechanisms underlying biomass conversion under hyperthermophilic conditions remain insufficiently understood. In t...

An Intraductal Papillary Mucinous Neoplasm–Like Lesion Manifesting as a Duodenal Polyp: A Rare Case Report

Intraductal papillary mucinous neoplasms (IPMNs) typically originate within the pancreatic ductal system. However, the occurrence of an IPMN–like mucinous neoplasm outside the pancreas, presenting as an isolated duodenal polyp, is extremely rare. An asymptomatic 64-year-old woman...

Age- and sex-adjusted genomic differences between Korean and Beat AML cohorts

Genomic profiling plays a central role in risk stratification and therapeutic decision-making in acute myeloid leukemia (AML), yet the clinical implications of population-specific genomic architectures remain incompletely defined. We conducted a prospective, multicenter study of...

Tinnitus Practice Patterns in Korean University Hospitals: Findings from a 2025 Nationwide Survey and Comparison with 2013

Objectives.: A 2013 nationwide survey described tinnitus management in Korean university hospitals. Since then, conceptual frameworks have broadened, and new therapies have emerged. We aimed to investigate tinnitus practice patterns among Korean university hospital otologists in...

Predictors of Early Versus Late Atrial Tachyarrhythmia Recurrence After Cryoballoon Ablation by Atrial Fibrillation Type

ABSTRACT Introduction Patient characteristics and predictors of early (ERAT) and late (LRAT) recurrence of atrial tachyarrhythmia by atrial fibrillation (AF) type after cryoballoon ablation (CBA) remain poorly defined. Methods Using the Korean Heart Rhythm Cryoballoon Registry (1...

A Nonheme μ-1,2-Peroxo Dicobalt(III) Complex Acting as a Key Intermediate for Selective Two-Electron/Two-Proton Catalytic Reduction of Dioxygen to Hydrogen Peroxide

Abstract The two-electron/two-proton reduction of O2 to H2O2 has attracted considerable attention recently, as H2O2 is both a valuable oxidant and a potential fuel for H2O2 fuel cells. While metalloporphyrins have been extensively studied as efficient catalysts for this reaction,...

Rapid progression of coronary atherosclerosis across glycemic status: a serial coronary computed tomography angiography study from the PARADIGM registry

Rapid progression of coronary atherosclerosis is associated with an increased risk of future adverse cardiovascular events. However, evidence regarding the association between glycemic status and rapid plaque progression (RPP) in the major epicardial coronary arteries remains lim...