Publications by authors named "Jaeha Lee"

Redox reactions on the surface of transition metal oxides are of broad interest in thermo, photo, and electrocatalysis. H temperature-programmed reduction (H-TPR) is commonly used to probe oxide reducibility by measuring the rate of H consumption during temperature ramps, assuming that this rate is controlled by oxide reduction. However, oxide reduction involves several elementary steps, such as H dissociation and H-spillover, before surface reduction and HO formation occur.

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  • The study focused on treatment results and failure patterns in breast cancer patients classified as cT3N0 who underwent neoadjuvant chemotherapy (NAC) followed by surgery.
  • Researchers examined 87 patients from 2000 to 2015, identifying high-risk individuals based on specific clinical factors like age and tumor characteristics.
  • Results showed promising outcomes overall, with low rates of recurrence; however, high-risk patients faced significantly worse outcomes, highlighting the importance of pre-treatment evaluation for predicting survival.
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  • The text references a correction to an article, implying there were errors or inaccuracies in the original publication.
  • The DOI (Digital Object Identifier) given indicates the specific article being referenced for correction.
  • This correction ensures that readers have access to the most accurate and reliable information related to that article.
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In patients with normal renal function, significant teicoplanin dose adjustments are often necessary. This study aimed to develop a population pharmacokinetic (PK) model for teicoplanin in healthy adults and use it to recommend optimal dosage regimens for patients with normal renal function. PK samples were obtained from 12 subjects and analyzed using a population approach.

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Introduction: Surgical options for patients with unicompartmental knee osteoarthritis include high tibial osteotomy (HTO) or unicompartmental knee arthroplasty (UKA). When managing younger patients with a higher chance of further surgery, the outcome of any subsequent conversion to total knee arthroplasty (TKA) also needs to be considered. The aim of this study was to compare implant survivorship and patient-reported outcomes for patients undergoing TKA after previous HTO or UKA, with comparisons for age, gender and comorbidities.

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Colistimethate sodium (CMS) nebulization is associated with reduced systemic toxicity compared to intravenous injection, with potentially enhanced clinical efficacy. This study aimed to assess the pharmacokinetic (PK) properties of colistin during low-dose CMS nebulization in patients with ventilator-associated pneumonia (VAP) caused by carbapenem-resistant . A nonlinear mixed-effects modeling approach was applied to develop population PK models for colistin in both epithelial lining fluid (ELF) and plasma.

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  • Single-atom catalysts (SACs) utilize metals more efficiently and show different reactivity compared to traditional metal nanoparticles.
  • The study reveals that platinum SACs (Pt SAs) on anatase TiO support display different coordination environments depending on which surface (001 or 101) they are on, affecting their reactivity.
  • Findings indicate that Pt SAs beneath the (001) surface have lower reactivity due to reduced access to gas, highlighting the importance of understanding heterogeneous coordination environments in the development of SACs.
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  • Researchers are studying a new way to treat a type of lung cancer called limited disease small cell lung cancer, using a special kind of radiation therapy that is given once a day.
  • They compared two groups of patients: one group got the standard treatment, and the other group received a stronger dose of radiation.
  • The patients who received the higher dose had better survival rates and control of their cancer, without experiencing more side effects.
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  • Surface-guided radiation therapy, using optical surface imaging, was evaluated against traditional skin-marking methods for accuracy and efficiency in prostate cancer treatment setup.
  • A study of 125 patients showed minimal differences in shift values between the two methods, indicating comparable accuracy.
  • The average setup times were 6.72 minutes for skin-marking and 7.53 minutes for surface guidance, suggesting that both methods are similar in time efficiency.
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  • The introduction of platinum-group metals (PGMs) to cerium oxide (CeO) enhances redox surface reactions, particularly hydrogen (H) dissociation and surface reduction, which are important in heterogeneous catalysis.
  • Research utilized various methods, including temperature-programmed reduction (TPR) and in situ spectroscopy, to investigate how platinum (Pt) nanoclusters and single atoms affect H reactions on Pt/CeO powder catalysts.
  • Key findings indicate that Pt significantly speeds up H consumption rates even on small fractions of CeO, alters the mechanism for H activation, and leads to localized changes in Ce distribution at CeO boundaries, ultimately improving H reaction efficiency compared to pure CeO.
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Background And Objectives: Little is known about studies evaluating positive airway pressure (PAP) compliance after re-prescription. Therefore, the aim of this study was to investigate PAP compliance after re-prescription in obstructive sleep apnea (OSA) patients who failed initial PAP therapy.

Methods: We retrospectively reviewed OSA patients who had received a re-prescription for PAP from March 2020 to June 2021.

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In South Korea, there are few studies to understand the current status of pulmonary rehabilitation in clinical practice and develop it. This study aimed to assess the current status and annual changes in the number and pattern of prescriptions for pulmonary rehabilitation before and after its insurance coverage. The trends of pulmonary rehabilitation before and after its insurance coverage commencement were evaluated using the data of 24,380 patients during the 3-year period from 2016 to 2018 that were archived by the National Health Information Database of the Health Insurance Review and Assessment Service in South Korea.

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Parapharyngeal liposarcoma is a rare malignant tumor, the pathogenesis of which is uncertain. Parapharyngeal liposarcoma often causes nonspecific clinical features, including dysphagia, globus sensation, and/or respiratory disturbances. The parapharyngeal space is a rare location for head and neck liposarcoma, and these lesions may therefore be confused with a variety of other tumors that can originate in this area.

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In this study, numerical analysis was performed to predict amount of fragments and travel distance after collision of a concrete median barrier with a truck under impact loading using Smooth Particle Hydrodynamics (SPH). The obtained results of the SPH analysis showed that amount of fragments and the travel distance can be changed depending on different velocity-to-mass ratios under same local impact energy. Using the results of the SPH analysis, artificial neural network (ANN) was constructed to consider the uncertainties for the prediction of amount of fragments and travel distance of concrete after collision.

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In the present study, the amount of fragments generated and their travel distances due to vehicle collision with concrete median barrier (CMB) was analyzed and predicted. In this regard, machine learning was applied to the results of numerical analysis, which were developed by comparing with field test. The numerical model was developed using smoothed particle hydrodynamics (SPH).

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  • The study aimed to explore the link between parental hyperuricaemia and that of their offspring, especially since the genetic factors influencing hyperuricaemia are not well understood.
  • It analyzed data from 2,373 parental-offspring pairs using statistical methods to control for other factors like obesity and alcohol consumption.
  • The findings suggest that while both parents influence offspring hyperuricaemia during teenage years, after age 20, paternal hyperuricaemia plays a more significant role, particularly when combined with the individual's alcohol intake, indicating a gene-environment interaction.
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A novel uncertainty relation for errors of general quantum measurement is presented. The new relation, which is presented in geometric terms for maps representing measurement, is completely operational and can be related directly to tangible measurement outcomes. The relation violates the naïve bound ℏ/2 for the position-momentum measurement, whilst nevertheless respecting Heisenberg's philosophy of the uncertainty principle.

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Background: Pleuroparenchymal fibroelastosis (PPFE) is a rare idiopathic interstitial pneumonia characterized by predominantly upper lobe involvement with pleural fibrosis and subjacent parenchymal fibrosis. Recently, there have been increasing reports of PPFE, and PPFE might coexist with other interstitial lung diseases in the lower lobe and upper lobe. However, cases of unilateral PPFE are scarce.

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Methane upgrading into more valuable chemicals has received much attention. Herein, we report oxidative methane conversion to ethane using gaseous O at low temperatures (<400 °C) and atmospheric pressure in a continuous reactor. A highly oxidized Pd deposited on ceria could produce ethane with a productivity as high as 0.

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Background: Desensitization is used to safely continue treatment with a culprit drug in patients with drug hypersensitivity. Currently, a multi-bag protocol is widely used for rapid desensitization, but performing the desensitization procedure is labor intensive as pharmacists and nurses need to prepare and administer diluted solutions. However, it has not been investigated whether dilution is essential for successful desensitization.

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In South Korea, the number of vehicles is gradually increasing. The number of heavy vehicles in 2010 increased up to 19% in less than five years. Therefore, the chances of heavy vehicle-concrete median barrier (CMB) collision also became higher than in the past; therefore, a need to study a stricter design level for improving the current CMB (CMB-15) under harsher environments arose.

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Background: The widespread use of molecular, genotypic drug susceptibility tests (DSTs) for antituberculosis (anti-TB) drugs has led to the dilemma of interpreting discordant results between genotypic and conventional, phenotypic DSTs. We investigated the clinical characteristics, including treatment patterns and outcomes, of TB patients with a genotype-phenotype discrepancy in susceptibility to isoniazid (INH) or rifampicin (RIF).

Methods: We retrospectively reviewed the medical records of TB patients who had results for 2 DSTs (genotypic method, MTBDR test for INH and RIF, and phenotypic method) treated between August 2010 and October 2016 in a tertiary university hospital.

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This paper aims at presenting the effects of short-term sustained load and temperature on time-dependent deformation of carbon fiber-reinforced polymer (CFRP) bonded to concrete and pull-off strength at room temperature after the sustained loading period. The approach involves experimental and numerical analysis. Single-lap shear specimens were used to evaluate temperature and short-term sustained loading effects on time-dependent behavior under sustained loading and debonding behavior under pull-off loading after a sustained loading period.

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Fibulin-3 (FBLN-3) has been postulated to be either a tumor suppressor or promoter depending on the cell type, and hypermethylation of the FBLN-3 promoter is often associated with human disease, especially cancer. We report that the promoter region of the FBLN-3 was significantly methylated (>95%) in some pancreatic cancer cell lines and thus FBLN-3 was poorly expressed in pancreatic cancer cell lines such as AsPC-1 and MiaPaCa-2. FBLN-3 overexpression significantly down-regulated the cellular level of c-MET and inhibited hepatocyte growth factor-induced c-MET activation, which were closely associated with γ-radiation resistance of cancer cells.

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Transmembrane 4 L six family member 4 (TM4SF4) is a member of the tetraspanin L6 domain family. Other members of this family, TM4SF1 (also known as L6-Ag) and TM4SF5, have been shown to be upregulated in multiple tumors and involved in epithelial-to-mesenchymal transition and cell migration. However, unlike its homologs, little is known about TM4SF4.

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