- Advanced Combinatorial Mathematics
- Nuclear reactor physics and engineering
- Advanced Mathematical Identities
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Advanced Graph Theory Research
- Radiation Detection and Scintillator Technologies
- Smoking Behavior and Cessation
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Molten salt chemistry and electrochemical processes
- Fluid Dynamics Simulations and Interactions
- semigroups and automata theory
- Limits and Structures in Graph Theory
- graph theory and CDMA systems
- Algorithms and Data Compression
- Obesity, Physical Activity, Diet
- Graph theory and applications
- Graph Labeling and Dimension Problems
- Advanced Semiconductor Detectors and Materials
- Mathematical functions and polynomials
- NF-κB Signaling Pathways
- Inflammasome and immune disorders
- Immune Response and Inflammation
- Internet of Things and Social Network Interactions
Hanyang University
2025
San Diego State University
2022-2024
Pusan National University
2014-2024
Korea Research Institute of Bioscience and Biotechnology
2024
University of Southern California
2013-2023
Inha University
2011-2023
Institute of Population and Public Health
2023
GS Caltex (South Korea)
2023
Korea Atomic Energy Research Institute
2008-2020
Korea University
2010-2018
Little is known about influences on e-cigarette use among early adolescents. This study examined that have been previously found to be associated with gateway drug in adolescents: demographic (age, gender, ethnicity, free lunch), social contextual of parents and peers, executive function deficits (EF).A cross-sectional survey was administered 410 7th grade students from two diverse school districts Southern California (M age;=12.4years, 48.3% female, 34.9% lunch (low socioeconomic status),...
Objective Social network analysis was used to examine whether peer influence from one's social networks moderates obesity prevention program effects on obesity-related behaviors: healthful and unhealthful. Methods Participants included 557 children residing in Southern California. The survey assessed health-promoting behaviors (i.e., physical activity at school, outside of fruit vegetable intake), as well unhealthful (high-calorie, low-nutrient intake sedentary activity), exposure calculated...
Herein, the substitution strategy of Sr 2+ into Na sites is proposed and its important role in improving high‐voltage stability O3‐type NaCrO 2 cathode (O3‐NCO) for high‐energy sodium‐ion batteries (SIBs) systematically analyzed. possesses similar physicochemical characteristics to that + ; hence, can preferentially occupy NaO 6 octahedral O3‐NCO, with one ion replacing two ions. The introduction generates sodium vacancies layer compensate charge neutrality, which facilitates diffusion...
As one of the first lines host defense, monocytes play important roles in clearing infected microbes. The defensive response is triggered by recognition diverse microbial moieties, including released factors, which modulate immune responses to establish a harsh environment for clinically bacterial pathogens. In this study, we found that expression PTX3, soluble form pattern receptor, was induced infection with live Pseudomonas aeruginosa or treatment cells its supernatant. P. GroEL, homolog...
Endometriosis, defined as the presence of endometrial cells outside uterine cavity, is a major cause infertility and pelvic pain, afflicting more than 10% reproductive age women. Endometriosis chronic inflammatory disease lipopolysaccharide promotes proliferation invasion endometriotic stromal cells. Cysteine-rich secretory protein LCCL domain-containing 2 (CRISPLD2) has high affinity for plays critical role in defense against endotoxin shock. However, function CRISPLD2 not been studied...
Type III-secreted effectors are essential for modulating host immune responses during the pathogenesis of Pseudomonas aeruginosa infections. Little is known about impact one effectors, ExoY, on inflammasome activation, which results in IL-1β production and pyroptotic cell death. In this study, we found that transcriptional expression Il-1β was induced to a lesser extent response an exoY-harboring strain than deleted mutant. This suppressive effect ExoY verified by complementation assay as...
Epithelial cells act as the first line of host defense against microorganisms by producing a range molecules for clearance. Proinflammatory cytokines facilitate clearance invaders recruitment and activation leukocytes. Upregulation cytokine expression thus represents an important innate response invading such Streptococcus pneumoniae. Histological analysis airway revealed less leukocyte infiltration during early stage pneumococcal infection, when compared with nontypable Haemophilus...
The clinical impact of polymicrobial infections has received increasing attention from the medical community. However, potential effects Pseudomonas aeruginosa infection on development host responses against Gram-positive bacteria, such as Staphylococcus aureus , are unknown. Here, P. was found to induce expression Toll-like receptor 2 (TLR2), which plays a dominant role in sensing pathogen-associated molecular patterns (PAMPs) expressed by bacteria. -dependent upregulation TLR2 not mediated...
Previous research has demonstrated the importance of ensuring that programs are implemented as intended by program developers in order to achieve desired effects. The current study examined implementation fidelity Pathways Health (Pathways), a newly developed obesity prevention for fourth- through sixth-grade children. We explored associations between self-reported and observed scores whether differed across first 2 years implementation. Additionally, we affected outcomes teacher beliefs...
In the current article, we describe an innovative sexual violence (SV) prevention initiative that used social network analysis to identify youth and adult popular opinion leaders who were subsequently trained in best practices SV (e.g., bystander intervention) at a kickoff event (i.e., camp) of initiative. We provide information on recruitment strategies, participation rates how those varied by some demographic factors, reasons for nonattendance, initial impact camp, lessons learned. Despite...
Menthol cigarettes are disproportionately marketed and advertised in the commercial tobacco retail environment Black communities across United States, contributing to menthol cigarette-related disparities lower likelihood of successful quitting among people who smoke. Policies restricting sales aimed at preventing initiation, promoting quitting, reducing related disparities.
Despite the potential benefits of cannabidiol as a skin-soothing ingredient, its regulatory status hampers general use in cosmetic products many countries. To develop an alternative to cannabidiol, fatty acid amide molecules mimicking chemical structure endocannabinoids were manufactured using lipase-catalyzed process. A mixture amides from sunflower oil and 1-amino propan-3-ol was synthesized immobilized lipase reaction, activation cannabinoid receptor 1 (CB1R) measured cAMP assay. The...
In this study, a novel mammalian cell receptor-based immuno-analytical method was developed for the detection of food-poisoning microorganisms by employing toll-like receptors (TLRs) as sensing elements. Upon infection with bacterium, host cells respond expressing TLRs, particularly TLR1, TLR2, and TLR4, on outer membrane surfaces. To demonstrate potential using foodborne bacteria, we initially selected two model systems, expression TLR1 line, A549, Escherichia coli TLR2 RAW264.7, Shigella...
This study uses recent data to investigate if smoking initiation diffuses through friendship networks over the high school period and explores diffusion processes differ across schools. One thousand four hundred twenty-five racially ethnically diverse youth from schools in Los Angeles were surveyed times 2010 2013. Probit regression models stochastic actor-based for network dynamics tested peer effects on initiation. Friend was found predict adolescent smoking, diffused some but not all of...