Publications by authors named "Yu-jin Lee"

Improvement in film-forming properties of starch is critical for the wide application of environmentally friendly starch film. To enhance moisture barrier and mechanical properties of starch films, the formation of starch-lipid inclusion complex was promoted by partial debranching of starch and reaction at various temperature. The partially debranched potato starch was initially prepared with pullulanase, and the starch-lipid inclusion complex was subsequently produced with oleic acid at various reaction temperatures of 30, 50, and 70 °C.

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Di--butyl phthalate (DBP) is a phthalate-based material used as a plasticizer to soften polyvinyl chloride, and classified as an endocrine disruptor with antiandrogen effects. Exposure to DBP induces oxidative stress in rat testes, resulting in testicular toxicity. Black ginseng (BG) exhibits a higher antioxidant activity than white or red ginseng following repeated heat treatment and processing.

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Liquid organic hydrogen carriers (LOHCs) offer a promising solution for global hydrogen infrastructure, but their practical application faces two key challenges: sluggish dehydrogenation processes and the reliance on catalysts with high noble metal loadings. This study presents a scalable approach to reduce noble metal usage while maintaining high catalytic activity. We synthesized an ultralow Pt content (0.

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This study investigated the altered neural activation underlying cognitive control under emotional and sleep-related interference conditions and its role in subjective sleep disturbance in patients with chronic insomnia disorder. In total, 48 patients with chronic insomnia disorder, and 48 age-, sex- and body mass index-matched controls were included in this study. They completed self-reported questionnaires to assess subjective sleep and emotional distress.

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is described on the basis of the holotype and 11 paratypes from subtidal waters of Seogwipo, Jeju Island, Korea. The new species had previously been regarded as the Northern Hemisphere population of the anti-equatorial , but molecular analyses of mitochondrial COI and 16S genes recovers deep genetic divergences of 9.4% and 15.

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  • Severe abdominal injuries often require quick surgical responses, and a study at Jeju Regional Trauma Center evaluated the effectiveness and outcomes of emergency department (ED) versus operating room (OR) laparotomies from 2020 to 2022.
  • Out of 105 trauma patients who had laparotomies, only 6 underwent ED laparotomies, which showed a high mortality rate of 66.7%, compared to 17.1% for OR laparotomies; however, those in the ED group received quicker treatment.
  • Despite the higher mortality, the significantly shorter time to surgery in the ED (28.5 minutes) versus the OR (104 minutes) highlights the urgent nature of these cases, particularly for patients with severe
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Hydrogen has received enormous attention as a clean fuel with its high specific energy (HHV=142 MJ kg). To apply hydrogen as a practically available energy vector, the direct production of high-pressure hydrogen with high purity is pivotal as it allows for circumventing the mechanical compression process. Recently, the concept of utilizing sodium borohydride (SBH) dehydrogenation as a chemical compressor that can generate high-pressure hydrogen gas was demonstrated by adopting formic acid as an acid catalyst.

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  • Hybrid perovskite/organic solar cells (HSCs) are gaining attention due to their easy manufacturing, wide photon absorption, and low voltage losses.
  • A significant challenge in improving their efficiency is the energy mismatch at the interface, causing charge buildup.
  • This study shows that adding a sub-nanometer dipole layer helps minimize this mismatch, leading to improved voltage and carrier movement, ultimately boosting the efficiency of HSCs to a record 24.0%.
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Although the barred sand burrower, Limnichthys fasciatus, is widely distributed throughout the western Pacific, including Japan, Taiwan, and Australia, its morphology and genetics are poorly known. We discovered four cryptic species of Limnichthys from the western Pacific based on mtDNA cytochrome c oxidase subunit I (COI) and 16S ribosomal RNA (rRNA) sequences. Genetic distances showed remarkably large differences (12.

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  • Recent studies suggest that Mesenchymal Stem Cells (MSCs) could be a promising treatment for Alopecia Areata (AA) due to their ability to suppress the immune response.
  • In animal experiments, MSC therapy showed improved hair regrowth and reduced local inflammatory cytokines in mice with AA compared to a control group.
  • The treatment also normalized important signaling pathway genes and growth factors involved in hair cycle regulation, indicating the need for further research on MSCs' effectiveness for AA treatment.
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Perillyl alcohol (POH) is a secondary metabolite of plants. POH and its derivatives are known to be effective as an anticancer treatment. In this study, oxidative derivatives of POH, which are difficult to synthesize chemically, were synthesized using the engineered bacterial cytochrome P450 BM3 (CYP102A1) as a biocatalyst.

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Background: Cognitive behavioral therapy for insomnia (CBTi) is the first-line therapy for chronic insomnia. Mobile app-based CBTi (MCBTi) can enhance the accessibility of CBTi treatment; however, few studies have evaluated the effectiveness of MCBTi using a multicenter, randomized controlled trial design.

Objective: We aimed to assess the efficacy of Somzz, an MCBTi that provides real-time and tailored feedback to users, through comparison with an active comparator app.

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  • The study aimed to create a scale called the Health Belief Model for Premature Birth Prevention (HBM-PBP) and assess its reliability and validity among women of childbearing age.
  • A total of 724 women participated, and the scale was developed through literature review, expert validation, and interviews, comprising 96 items across four main areas: perceived susceptibility, severity, benefits, and barriers.
  • The results showed that the HBM-PBP has strong psychometric properties, with high reliability (Cronbach's alpha between 0.87 and 0.94), making it a useful tool for health professionals to understand women's beliefs about premature birth and tailor interventions accordingly.
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In patients with head and neck cancer (HNC), surgical removal of cancerous tissue presents the best overall survival rate. However, failure to obtain negative margins during resection has remained a steady concern over the past 3 decades. The need for improved tumor removal and margin assessment presents an ongoing concern for the field.

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Viral load and the duration of viral shedding of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are important determinants of the transmission of coronavirus disease 2019. In this study, we examined the effects of viral doses on the lung and spleen of K18-hACE2 transgenic mice by temporal histological and transcriptional analyses. Approximately, 1×10 plaque-forming units (PFU) of SARS-CoV-2 induced strong host responses in the lungs from 2 days post inoculation (dpi) which did not recover until the mice died, whereas responses to the virus were obvious at 5 days, recovering to the basal state by 14 dpi at 1×10 PFU.

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Purpose: Large language models continue to dramatically change the medical landscape. We aimed to explore the utility of ChatGPT in providing accurate, actionable, and understandable generative medical translations in English, Spanish, and Mandarin pertaining to Otolaryngology.

Methods: Responses of GPT-4 to commonly asked patient questions listed on official otolaryngology clinical practice guidelines (CPG) were evaluated with the Patient Education materials Assessment Tool-printable (PEMAT-P.

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Extracellular vesicles (EVs), including exosomes, are increasingly recognized as potent mediators of intercellular communication due to their capacity to transport a diverse array of bioactive molecules. They assume vital roles in a wide range of physiological and pathological processes and hold significant promise as emerging disease biomarkers, therapeutic agents, and carriers for drug delivery. Exosomes encompass specific groups of membrane proteins, lipids, nucleic acids, cytosolic proteins, and other signaling molecules within their interior.

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  • Regular physical activity helps reduce breast cancer growth, and this study investigates how steady exercise affects metastasis and the underlying mechanisms.
  • In a mouse model, 8 weeks of steady exercise led to a significant reduction in both the number and size of metastasized tumors, with the myokine irisin playing a key role.
  • The findings suggest that irisin, which is enhanced by steady exercise, may inhibit breast cancer metastasis by affecting certain protein expressions related to cancer stem cell properties and tumor invasiveness.
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Purpose: The respiratory syncytial virus (RSV) is a common respiratory virus that causes acute lower respiratory tract infectious diseases, particularly in young children and older individuals. Activated leukocyte cell adhesion molecule (ALCAM) is a membrane glycoprotein expressed in various cell types, including epithelial cells, and is associated with inflammatory responses and various cancers. However, the precise role of ALCAM in RSV-induced airway inflammation remains unclear, and our study aimed to explore this gap in the literature.

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Background: Studies on the brain structures of shift workers are limited; thus, this cross-sectional study aimed to compare the brain structures and the brain structural correlates of subjective sleepiness and insomnia symptoms between shift workers and non-shift workers.

Methods: Shift workers ( = 63) and non-shift workers ( = 58) completed questionnaires assessing subjective sleepiness and insomnia symptoms. Cortical thickness, cortical surface area, and subcortical volumes were measured by magnetic resonance imaging.

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Complications of ileoanal pouch surgery affecting function and quality of life may require surgical correction or pouch excision. The management of patients with pouch dysfunction requires a multidisciplinary approach and demand for service provision include multiple healthcare professionals and resources. The aim of this study is to present the service requirements, and surgical outcomes for redo pouch surgery and pouch excision, with cost analysis of the required resources.

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Background: This study aimed to develop and evaluate the validity and reliability of a self-management self-efficacy for premature birth prevention (SMSE-PBP) in women of childbearing age (WCA).

Methods: Instrument development and validation were undertaken in three phases: conceptualization, item generation and evaluation of content validity, and evaluation of construct and concurrent validity and reliability. Data were analyzed using exploratory and second-order confirmatory factor analyses, and concurrent validity was examined using Pearson's correlation coefficients.

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The burgeoning demand for commercializing self-luminescing quantum dot (QD) light-emitting diodes (LEDs) has stimulated extensive research into environmentally friendly and efficient QD materials. Hydrofluoric acid (HF) additive improves photoluminescence (PL) properties of blue-emitting ZnSeTe QDs, ultimately reaching a remarkable quantum yield (QY) of 97% with an ultranarrow peak width of 14 nm after sufficient HF addition. The improvement in optical properties of the QDs is accompanied by a morphology change of the particles, forming cubic-shaped defect-free ZnSeTe QDs characterized by a zinc blende (ZB) crystal structure.

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