Pusan National University

Emergency management protocols for major complications after oral and maxillofacial surgery: emphasis on airway and bleeding control

Abstract Background Major postoperative complications following maxillofacial surgery, particularly severe bleeding and airway obstruction, remain life-threatening events despite advances in surgical trechniques and perioperative care[1, 2]. Delayed response to these events can l...

Changes in External Developmental Assets Across Adolescence in Low‐Income Urban Youth

ABSTRACT This study investigated longitudinal changes in external developmental assets (EDA)—support, empowerment, boundaries & expectations across ecological and interpersonal contexts of family, peers, school, and neighborhood—among predominantly Black, low‐income urban adolesc...

Communal spatial orders in Umbrian fortified borghi: a morphological classification of spatial skeletons

This study develops a comparative framework for interpreting communal spatial order in medieval fortified settlements through NAIN-based spatial skeletons. Thirty-eight borghi in Umbria, Italy, were analysed to identify recurring spatial configurations and compare morphological c...

Nurse-led preprocedural Valsalva maneuver training with a maximal expiratory pressure device during transesophageal echocardiography in South Korea: a quasi-experimental study

Purpose: This study examined the effects of preprocedural Valsalva maneuver (VM) training using a maximal expiratory pressure (MEP) device on VM performance and patient discomfort during transesophageal echocardiography (TEE).Methods: This study used a time-lagged, posttest-only,...

( S )‐Pyrrolo[1,2‐ a ]pyrazine‐3‐carboxamide Analogs as Dual Akt/JNK Modulators With Antiproliferative Effects in MDA‐MB‐468 Cells

Triple‐negative breast cancer (TNBC) remains a major clinical challenge due to the absence of effective targeted therapies. In this study, thirty analogs of ( S )‐1‐oxo‐1,2,3,4‐tetrahydropyrrolo[1,2‐ a ]pyrazine‐3‐carboxamide ( A1 – F5 ) were designed, synthesized, and evaluated...

Dental and Skeletal Characteristics According to the Location of Ectopic Eruption of the First Permanent Molar in the Mixed Dentition

This study aimed to evaluate the dentoskeletal characteristics associated with ectopic eruption of the first permanent molars during the mixed dentition. A retrospective analysis was performed on children who visited the Department of Pediatric Dentistry at Pusan National Univers...

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...

Machine Learning Guided Meta-transcriptomics Reveals OsRPM1 as a Key Regulator of Rice Blast Resistance

Rice blast, caused by Magnaporthe oryzae , is the most destructive fungal disease of rice, responsible for annual yield losses of 10–30% and posing a major threat to global food security. The rapid evolution of blast pathotypes and the polygenic nature of resistance complicate br...

Integrated Valorization of Macroalgae in a Recyclable Ionic Liquid: Hydrothermal Production of Formic and Levulinic Acids with Product Recovery and Biohydrogen Generation

Abstract Marine macroalgae are drawing growing interest as underutilized feedstocks for chemicals and fuels and as high-productivity, carbon-assimilating biomass that could contribute to carbon capture and sequestration strategies. Here, we investigate an ionic-liquid-assisted hy...

Ecological Momentary Assessment Studies of Binge Eating in Non-Clinical Populations: A Scoping Review

Background/Objectives: Binge eating (BE)—eating an objectively large amount of food with a subjective loss of control—occurs broadly beyond formal eating disorder diagnoses. However, its real-time occurrence in the general population remains poorly understood due to reliance on r...

Comparative Analysis of Cotton- and Flocked-Swab-Based Culture Methods in Bacterial Keratitis

Purpose: To compare the diagnostic performance of flocked-swab and cotton-swab culture methods in patients with bacterial keratitis.Methods: Twentytwo patients diagnosed with bacterial keratitis between May 2024 and August 2025 were included. Corneal specimens were collected usin...

A quorum sensing antagonist with dual bacterium- and host-directed anti-pathogenic activity against Pseudomonas aeruginosa

Pseudomonas aeruginosa is a major opportunistic pathogen whose clinical management is increasingly compromised by antibiotic resistance and biofilm-associated persistence. Anti-pathogenic strategies that attenuate virulence without inhibiting bacterial growth offer a promising al...

Quantile connectedness between African stock markets, Twitter sentiment index, implied volatilities, financial condition index and economic uncertainty

Purpose This study aims to examine the quantile-based time-frequency spillovers between African stock prices and global uncertainty indicators. Design/methodology/approach The study applies the quantile vector autoregressive connectedness framework to daily data (2012–2023) for n...

Analysis of birefringence modulation performance in RM-embedded CO-polymer waveguides

Uncontrolled birefringence causes measurement errors and signal distortion in high-precision optical systems, yet existing modulation methods suffer from complex fabrication or poor stability. Polymer waveguides serve as low-cost, flexible alternatives to traditional lithium niob...

Ultrafast Photochemical Reaction Dynamics of a Cyclic (Alkyl)(Amino)Carbene-Carbon Disulfide Dimer Probed by Femtosecond Infrared Spectroscopy

The ultrafast photochemical reaction dynamics of a cyclic(alkyl)(amino)carbene–carbon disulfide (CAAC–CS2) dimer containing two adjacent S–S bonds were investigated using femtosecond time-resolved infrared spectroscopy in combination with multireference electronic structure calcu...

Architectural Control of Bottlebrush Polymers for Tuning Rheology of Polylactic Acid Blends

Abstract A series of polylactic acid (PLA)-based bottlebrush polymers (BBPs) with controlled grafting ratios were synthesized and blended with linear PLA to examine the role of bottlebrush architecture in governing melt rheology. The blends exhibited a nonmonotonic dependence of...

Scalable Manufacturing of Nano–Micro Hybrid Composites for Large-Scale Aircraft Structures Using rGO-Embedded Carbon Fabrics

Abstract Carbon fiber–reinforced plastics (CFRPs) are widely used in aerospace structures due to their high specific strength and lightweight characteristics. However, their laminated architecture and limited fiber–matrix interfacial interaction often restrict interlaminar perfor...

Risk Factors for Stereoacuity Impairment in Intermittent Exotropia: Results from a Nationwide Korean Study

Purpose: To identify clinical factors associated with stereoacuity impairment in patients with intermittent exotropia (IXT), with an emphasis on perinatal, refractive, motor, and sensory parameters. Methods: This nationwide cross-sectional study analyzed 5,385 Korean patients wit...

Topological Stochastic Cosmology: Mathematical Foundations and Phase Transition Mechanism of Dark Energy

This paper establishes the mathematical foundations of Topological Stochastic Cosmology (TSC) and rigorously derives the discontinuous phase transition (Phase Jump) mechanism of dark energy. In particular, it proves the discontinuous behavior at a specific redshift z=1.716 derive...

Carbon Nanotube-Based Gas Sensors: Sensing Mechanisms, Functional Interfaces, Gas-Specific Performance, and Flexible/Wearable Integration

Carbon nanotubes (CNTs) have become one of the most widely investigated nanomaterials for gas sensing because their nearly one-dimensional geometry, large surface-to-volume ratio, hollow structure, and tunable metallic or semiconducting character allow trace adsorption events to...