Kyung Hee University

Make-or-Buy Decisions in Eco-Friendly Markets: Supplier Coopetition and Sustainability Reputation Spillovers

Large diversified firms seeking to enter eco-friendly markets must decide whether to source essential green components from specialized suppliers or develop comparable components in-house. External sourcing facilitates rapid market entry and avoids costly development, but it crea...

The art of war is to avoid fighting: an analysis of entry deterrence in the context of an innovation shock

Purpose This study tests the theory of entry deterrence in the context of an innovation shock. Specifically, this article investigates the extent to which within-niche product proliferation implemented by incumbents (firms already established in a submarket), their organizational...

Solution and Stability of a Multi-Quadratic Functional Equation

In this paper, we characterize the general solution to a system of functional equations with respect to the multi-quadratic mappings by proving that any such mapping can be uniquely represented via a 2n-additive pairwise symmetric mapping. And we prove the stability results with...

Structural hybridization of polydiacetylene-based composites: From molecular Signaling to multifunctional sensing architectures

Abstract Polydiacetylenes (PDAs) are widely studied stimuli-responsive materials owing to their characteristic chromatic transition originating from conformational changes in the conjugated backbone. However, practical applications are limited by structural instability, weak sign...

Immunogenic Cell Death Induced by EEO in Breast Cancer Cells Promotes Dendritic Cell Activation in a CRT-Dependent Manner

Cancer immunotherapy faces significant challenges in treating “cold” tumors, which respond poorly to current strategies. Breast cancer is a major cause of cancer-related mortality in women and is a representative immunosuppressive cold tumor. The luminal A subtype of breast cance...

Finite-horizon ratcheting with perpetual commitment: optimal consumption, investment, and lock-in effects

Abstract We study optimal consumption and portfolio policies for an agent with a finite planning horizon and an irreversible consumption ratcheting constraint. During the planning horizon, the agent may increase consumption but cannot reduce it. After the terminal date, the consu...

Profiling of pyrimidine and arginine metabolism in NSCLC identified Malate-Aspartate Shuttle as the backbone network

Abstract Metabolic shifts are crucial for cellular proliferation, however, the roles of various metabolic pathways and their interconnections in NSCLC remain unclear. This lack of understanding in metabolic shifts precludes better cancer management as well as effective therapeuti...

Integrating Environmental Value Into Mobility‐as‐a‐Service: Behavioral Insights for Sustainable Mobility Strategy

ABSTRACT Mobility‐as‐a‐Service (MaaS) offers an integrated solution for sustainable urban transport. However, user adoption remains limited, and individuals' valuation of environmental performance is poorly understood. This study empirically examined sustainability‐oriented prefe...

Experimental investigation of adjustable circular steel connectors for modular steel beam splices

This study proposes an Adjustable Circular Steel Connector (ACS) for beam-to-beam connections in modular steel structures, which enables continuous on-site length adjustment through the threaded engagement of two cylindrical shanks. The load path through the connection was first...

Comparison of educational outcomes and factors associated with clinical decision-making ability between virtual reality and simulation-based training among undergraduate nursing students

Clinical decision-making is a core competency in nursing practice, yet opportunities for direct patient care during clinical placements have become increasingly limited. Although virtual reality (VR) and simulation-based learning (SBL) are widely used in nursing education, compar...

Civil Servants' Compliance with Conflict‐of‐Interest Regulation: Evidence from a List Experiment

ABSTRACT While regulatory governance scholarship has paid significant attention to the normative importance of ethics reform in government, empirical evidence on compliance remains scant. Drawing on insights from the social value activation model and behavioral ethics, this study...

Systemic immune-inflammation index, but not neutrophil-to-lymphocyte ratio, is a predictor for detecting clinically significant prostate cancer at first biopsy

To determine whether systemic immune-inflammation index (SIII) and neutrophil-to-lymphocyte ratio (NLR) could be predictive factors for detecting clinically significant prostate cancers at first biopsy in men with a PSA level of 3.0–10.0 ng/ml or abnormal digital rectal examinati...

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

Oxaziridines are three‐membered heterocyclic compounds containing a carbon, an oxygen, and a nitrogen atom. Along with high regio‐, chemo‐, enantio‐, and diastereoselectivity, oxaziridines have gained more interest in modern organic synthesis due to their unique structural and el...

Statewide Empirical Analysis of Asphalt Pavement Performance and Service Life at Intersections

Abstract Intersections are consistently found to be among the most critical locations for pavement deterioration, yet large-scale empirical evidence quantifying their relationship with deterioration remains limited. This research conducts a comprehensive statewide empirical inves...

Strategies for Enhancing Efficiency and Operational Stability in Green Phosphorescence‐Sensitized Fluorescence (PSF) Organic Light‐Emitting Diode (OLED) Technology

ABSTRACT Multi‐resonance thermally activated delayed fluorescence (MR‐TADF) emitters have gained considerable attention to solve the color purity issue in organic light‐emitting diode (OLED) commercialization. However, their slow reverse intersystem crossing rate (k RISC ) leads...

Complete strategy spaces reveal hidden pathways to cooperation

Understanding how cooperation emerges and persists is a central challenge in evolutionary game theory. However, models of communication often rely on restricted strategy sets, making it unclear whether omitted behaviours alter cooperation. Here, we study the complete deterministi...

The effects of a mobile health application on adolescent mental health during the COVID-19 pandemic: a randomized controlled study

Abstract Adolescents experienced substantial psychological distress during the COVID-19 pandemic, including elevated stress, disrupted routines, reduced peer interaction, and reduced access to in-person professional support. Mobile health (mHealth) interventions may offer accessi...

Lithium Niobate Electro‐Optic Photonic Processor for Variational Quantum Eigensolver

Encoding quantum information in high-dimensional photonic states as a qudit provides a powerful route to resource-efficient quantum simulation. Among various integrated photonic platforms, lithium niobate on insulator is particularly attractive because it combines low optical los...

Beyond Economic Benefit: How Justice, Empowerment, and Political Trust Shape Residents’ Support for Space Tourism

This study extends research explaining resident trust through cost–benefit evaluations of tourism development. In the context of space tourism development, a government-led initiative that offers residents limited participation and few direct benefits, we drew on Lefebvre’s right...

Effects of low-intensity aerobic and resistance training on physical function, adiponectin, and metabolic health in oldest-old women: a randomized controlled trial

Abstract Background Few studies have examined exercise interventions in oldest-old women—that is, women aged 85 years and older—despite their high risk of experiencing functional decline and metabolic dysregulation. Thus, the present study investigated the effects of low-intensit...