Publications by authors named "Ji-Su ParK"

The chin tuck against resistance (CTAR) exercise is a therapeutic method developed to activate and strengthen the oropharyngeal muscles related to swallowing in patients experiencing post-stroke dysphagia. However, existing CTAR exercises could be improved by considering the complex characteristics of the suprahyoid muscles. To investigate the efficacy of multidirectional (md-) CTAR on tongue pressure and suprahyoid muscle activity in older adults.

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Fluorite-structured binary oxide ferroelectrics exhibit robust ferroelectricity at a thickness below 10 nm, making them highly scalable and applicable for high-end semiconductor devices. Despite this promising prospect, achieving highly reliable ferroelectrics still demands a significant thermal budget to form a ferroelectric phase, being a hurdle for their use in high-end complementary metal oxide semiconductor (CMOS) processing. Here, we report a robust ferroelectric behavior of an 8 nm-thick ZrO film deposited plasma-enhanced atomic layer deposition at 300 °C on a (002)-oriented Ru without any post-annealing process, demonstrating high compatibility with CMOS processing.

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Existing studies on gait phase estimation generally involve walking experiments using inertial measurement units under limited walking conditions (WCs). In this study, a gait phase estimation algorithm is proposed that uses data from force sensing resistors (FSRs) and a Bi-LSTM model. The proposed algorithm estimates gait phases in real time under various WCs, e.

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Auricular reconstruction in traumatic patients needs a more diverse and in-depth approach as the graft site may not be available for autologous graft. The implant-retained auricular prosthesis has shown satisfying outcomes for those patients who have lost their auricle due to congenital or acquired reasons. When osseointegrated auricular implants are not available, dental implant and implant-planning software can provide safe, reliable, and predictable outcomes.

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Ice, one of the most enigmatic materials on Earth, exhibits diverse polymorphism, with research mainly focusing on the most commonly observed phases: hexagonal ice (I), cubic ice (I), and stacking-disordered ice (I). While their formation or structural changes are crucial for advancements in cloud science, climate modeling, and cryogenic technology, the molecular mechanisms driving these phenomena remain unexplored. Herein, utilizing cryogenic transmission electron microscopy, we investigate the formation of ice at two different temperatures, demonstrating a size-dependent phase shift from I to I.

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Background: Tongue-strengthening exercises may be used at home to strengthen swallowing-related oropharyngeal muscles in community-dwelling older adults with sarcopenic dysphagia; however, evidence of their effectiveness remains unclear.

Objective: This study aimed to investigate the effects of a home-based tongue-strengthening exercise (hTSE) using portable tool on swallowing-related oropharyngeal muscles in community-dwelling older adults with sarcopenic dysphagia.

Methods: Forth community-dwelling older adults with sarcopenic dysphagia were enrolled in the study.

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Article Synopsis
  • The COVID-19 pandemic led to significant changes in the occurrence of respiratory syncytial virus (RSV) in Gwangju, South Korea, resulting in no RSV during the 2020/2021 season and a three-fold increase in incidence in the 2021/2022 season, especially in children under 5.
  • Whole-genome sequencing of RSV samples pre- and post-pandemic showed shifts in lineages, with only the A.D.3.1 lineage found in the 2021/2022 season, while multiple lineages, including A.D.1 and A.D.3, co-circulated in the following season.
  • The study emphasizes the importance of ongoing surveillance to understand
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Article Synopsis
  • - The study analyzes SARS-CoV-2 genetic data from COVID-19 patients in Gwangju, South Korea, from 2020 to 2022 to understand variance trends and infection patterns over time.
  • - Key variants identified included B.41, B.1.497, B.1.619.1, and B.1.617.2, with a notable increase in the rapid spread of the Omicron variant after its identification in late December 2021.
  • - Findings highlight the importance of regional genomic surveillance alongside national efforts to enhance variant tracking and improve overall infectious disease management.
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Background: A dysphagia rehabilitation method using kinesiology taping (KT) was recently introduced, and its potential for clinical efficacy was demonstrated by evaluating muscle activity and thickness. However, its effect on the swallowing function in patients with dysphagia remains unclear. This study aimed to investigate the effects of effortful swallowing against KT resistance on the swallowing function in patients with post stroke dysphagia.

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Single-molecule techniques are powerful microscopy methods that provide new insights into biological processes. Liquid-phase transmission electron microscopy (LP-TEM) is an ideal single-molecule technique for overcoming the poor spatiotemporal resolution of optical approaches. However, single-molecule LP-TEM is limited by several challenges such as electron-beam-induced molecular damage, difficulty in identifying biomolecular species, and a lack of analytical approaches for conformational dynamics.

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The non-pharmaceutical interventions implemented to prevent the spread of COVID-19 have affected the epidemiology of other respiratory viruses. In South Korea, Human metapneumovirus (HMPV) typically occurs from winter to the following spring; however, it was not detected for two years during the COVID-19 pandemic and re-emerged in the fall of 2022, which is a non-epidemic season. To examine the molecular genetic characteristics of HMPV before and after the COVID-19 pandemic, we analyzed 427 HMPV-positive samples collected in the Gwangju area from 2018 to 2022.

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Article Synopsis
  • - This study explored the impact of kinesiology taping (KT) combined with swallowing exercises on muscle activation and thickness in elderly individuals.
  • - Twenty-four healthy older adults were split into an experimental group using KT with tension and a placebo group without tension while practicing swallowing exercises for six weeks.
  • - Results indicated that the experimental group experienced significant improvements in both the activation and thickness of key swallowing muscles compared to the placebo group, supporting the use of this method for dysphagia rehabilitation.
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Background: Whether to sacrifice or spare the recurrent laryngeal nerve (RLN) when papillary thyroid carcinoma (PTC) involves a functioning RLN remains controversial. Oncological outcomes after shaving PTC with gross remnant on the RLN have been rarely reported. The objective of this study was to evaluate the oncological outcomes of patients who underwent shaving of a PTC from the RLN, leaving a gross residual tumor with the intent of vocal function preservation.

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Sexuality is a common concern among people with disabilities or chronic conditions, and failure to address sexuality can lead to poorer rehabilitation outcomes. To explore the factors affecting addressing the sexuality of adult clients in clinical practice as perceived by Korean Occupational Therapists (OTs) and the perspective on what needs to be established to address sexuality in occupational therapy practice. This descriptive qualitative study using focus group interviews was conducted with 15 OTs providing rehabilitation services for adult clients in the post-onset maintenance phase or for outpatients in Seoul, South Korea.

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An ankle foot orthosis (AFO) is a standard type of orthosis applied to immediately treat foot drop symptoms. Kinesiology taping (KT) is a therapeutic method used in patients with neurological diseases, such as stroke, as well as in patients after orthopedic and sports injuries. This study aimed to compare outcomes of AFO treatment with those of KT to investigate the effect on gait ability in patients with foot drop after stroke.

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Background: Osteochondral lesions of the talus are uncommon in children and adolescents. Surgical procedures differ from those used for adults to avoid iatrogenic physeal injuries. This study aimed to evaluate the clinical and radiological outcomes of surgical treatment in pediatric patients with osteochondral lesions, specifically investigating the patient age and the status of distal tibial physis as factors associated with surgical success.

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Introduction: Chin-tuck are effective in patients with dysphagia, where aspiration can occur due to pharyngeal swallowing delays. This study aims to verify whether Chin-tuck Assistant System Maneuver (CAS-M) supplemented with Chin-Tuck Maneuver (CTM) is effective for learning and maintaining correct chin-tuck postures. In addition, we investigated the possibility of using CAS-M as a customized rehabilitation treatment program for patients with poor cognitive ability, attention issues, and general swallowing disorders.

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Mumps is the second-most reported infectious disease in South Korea; however, due to the low pathogen confirmation rate in laboratory diagnoses, we proposed a method for reevaluating the high incidence rate via the laboratory verification of other viral diseases. In 2021, 63 cases of pharyngeal or cheek mucosal swabs of suspected mumps cases in Gwangju, South Korea, were assessed for causative pathogens using massive simultaneous pathogen testing. More than one respiratory virus was detected in 60 cases (95.

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Article Synopsis
  • The study investigates the relationship between reactogenicity (adverse effects) and immunogenicity (immune response) of the ChAdOx1 COVID-19 vaccine among South Korean healthcare workers.
  • Participants received two doses of the vaccine, and their immune response was measured alongside reported side effects after each dose.
  • Results showed a significant drop in adverse events after the second dose and a notable increase in immune response for those who experienced pain after the first dose.
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Demand for healthy diets has led researchers to explore new saccharide as sucrose alternatives. -Psicose, the C-3 epimer of -fructose, has a similar sweetness intensity to sucrose but contributes fewer calories. This study proposes a disaccharide with a stable structure derived from -psicose.

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An elastic printed circuit board (E-PCB) is a conductive framework used for the facile assembly of system-level stretchable electronics. E-PCBs require elastic conductors that have high conductivity, high stretchability, tough adhesion to various components, and imperceptible resistance changes even under large strain. We present a liquid metal particle network (LMP) assembled by applying an acoustic field to a solid-state insulating liquid metal particle composite as the elastic conductor.

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Gait assessment is an important tool for determining whether a person has a gait disorder. Existing gait analysis studies have a high error rate due to the heel-contact-event-based technique. Our goals were to overcome the shortcomings of existing gait analysis techniques and to develop more objective indices for assessing gait disorders.

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Recently, a therapeutic method to stimulate the suprahyoid muscle using peripheral magnetic stimulation for dysphagia rehabilitation has been reported. However, clinical evidence, application protocol, and intervention method remain unclear. Therefore, a systematic review of the published literature is needed.

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Article Synopsis
  • Recent research on single-cell transcriptomics is highlighting the role of plaque foamy macrophages in atherosclerosis, prompting a reassessment of their function and gene expression compared to other macrophage types.
  • Studies indicate that plaque foamy macrophages have distinct gene profiles and express TREM2, which is associated with protective functions in various diseases, suggesting they may play a crucial role in managing chronic inflammation.
  • The authors propose renaming plaque foamy macrophages as plaque lipid-associated macrophages (PLAMs) due to their similarities with macrophages involved in lipid metabolism, indicating their potential in alleviating atherosclerotic inflammation by clearing harmful lipids and debris from plaques.
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The spiral shape of intestinal pathogen Campylobacter jejuni is critical for invasion of intestinal mucosa epithelial cells. Insofar as this cell morphology plays a role in the pathology of C. jejuni infection, its restructuring by pharmacological intervention could be an unexplored means to prevention of infection.

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