36,937 results match your criteria: "Suwon; and Cheonan Soo Skin Clinic JH[Affiliation]"

Internal structure of the Patient Health Questionnaire-9: A systematic review and meta-analysis.

Asian Nurs Res (Korean Soc Nurs Sci)

December 2024

Graduate School of Public Health, Ajou University, Suwon, Republic of Korea. Electronic address:

Purpose: This review aimed to evaluate the internal structure (structural validity, internal consistency, and measurement invariance) of the Patient Health Questionnire-9 (PHQ-9), which is one of the most widely used self-administered instruments for assessing and screening depression.

Methods: The updated COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) methodology for a systematic review of self-reported instruments was used. PubMed, Embase, CINAHL, PsycINFO, and Cochrane Library databases were searched from their inception up to February 28, 2023.

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Nonthermal Plasma Boosted Dichloroacetate Induces Metabolic Shifts to Combat Glioblastoma CSCs via Oxidative Stress.

Free Radic Biol Med

December 2024

Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea. Electronic address:

Glioblastoma (GBM) remains a formidable clinical challenge, with cancer stem cells (CSCs) contributing to treatment resistance and tumor recurrence. Conventional treatments often fail to eradicate these CSCs characterized by enhanced resistance to standard therapies through metabolic plasticity making them key targets for novel treatment approaches. Addressing this challenge, this study introduces a novel combination therapy of dichloroacetate (DCA), a metabolic modulator and nonthermal plasma to induce oxidative stress in glioblastomas.

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Direct synthesis of multilayer graphene on a microscale ridge-patterned copper substrate.

Micron

December 2024

School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea; Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Seoul 08826, Republic of Korea; Advanced Institute of Convergence Technology, Seoul National University, Suwon 16229, Republic of Korea; Institute of Engineering Research, College of Engineering, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

Graphene's exceptional physical properties, such as high thermal conductivity and mechanical strength, have attracted significant interest for its integration in transistors and thermal interface materials. While achieving various conformations of graphene is desirable for such applications, synthesizing graphene with target conformations remains a challenge. In this work, we present a method for synthesizing multilayer graphene with ridged conformations, using a microscale ridge-patterned copper (Cu) layer that was epitaxially deposited on a sapphire substrate.

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Glioblastoma, isocitrate dehydrogenase (IDH)-wildtype (GBM), is the most malignant brain tumor in adults, with limited therapeutic intervention. Previous studies have identified a few prognostic markers for GBM, including the methylation status of O-methylguanine-DNA methyltransferase (MGMT) promoter, TERT promoter mutation, EGFR amplification, and CDKN2A/2B deletion. However, the classification of GBM remains incomplete, necessitating a comprehensive analysis.

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Background And Aims: Observational healthcare data are an important tool for delineating patients' inflammatory bowel disease (IBD) journey in real-world settings. However, studies that characterize IBD cohorts typically rely on a single resource, apply diverse eligibility criteria, and extract variable sets of attributes, making comparison between cohorts challenging. We aim to longitudinally describe and compare IBD patient cohorts across multiple geographic regions, employing unified data and analysis framework.

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Introduction: Grip strength serves as a significant marker for diagnosing and assessing sarcopenia, particularly in elderly populations. The study aims to explore the relationship between individual thigh muscle volumes and grip strength, leveraging advanced AI-based UNETR segmentation techniques for accurate muscle volume assessment.

Methods: The study included 49 participants from a cohort of 478 patients diagnosed with hip fractures at Gyeongsang National University Hospital.

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Despite numerous studies aimed at solving the detrimental dissolution issue of organic electrode materials (OEMs), a fundamental understanding of their dissolution mechanism has not yet been established. Herein, we systematically investigate how changes in electrolyte composition affect the ion-solvent interactions propagating to OEM dissolution by changing the cation. The cyclability of OEM is significantly different by alkali cations, where the OEM with K is stable even after 300 cycles and that with Li is drastically decayed within 100 cycles.

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During acute respiratory distress syndrome (ARDS), delayed apoptosis of neutrophils and impaired efferocytosis of macrophages constitute two critical limiting steps, leading to secondary inflammatory storm and posing a significant threat to human health. However, due to the failure of previous single target-centric treatments to effectively address these two limiting steps in controlling the inflammatory storm, no available therapies are approved for ARDS treatment. Herein, inspired by spontaneous inflammation resolution, two kinds of Apoptosis and Efferocytosis Restored Nanoparticles (AER NPs) are proposed to overcome these two limiting steps for counteracting severe inflammatory storm.

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The creation of self-organizing liver organoids represents a significant, although modest, step toward addressing the ongoing organ shortage crisis in allogeneic liver transplantation. However, researchers have recognized that achieving a fully functional whole liver remains a distant goal, and the original ambition of organoid-based liver generation has been temporarily put on hold. Instead, liver organoids have revolutionized the field of hepatology, extending their influence into various domains of precision and molecular medicine.

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One of the most significant challenges for image-guided cancer-targeted therapy is to develop multifunctional optical contrast agents enabling simultaneous targeting and therapy. Herein, a feasible strategy is based on the incorporation of therapeutic moieties into the non-delocalized structure of polymethine indocyanines, known as the "structure-inherent targeting" concept. By possessing a rigid chloro-cyclohexenyl ring in the heptamethine cyanine backbone, a new type of multifunctional near-infrared fluorescent dye, Ph790H, that targets tumor without the need for additional targeting ligands is synthesized.

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Article Synopsis
  • Hyperspectral imaging (HSI) combined with machine learning (ML) offers a promising method for evaluating the freshness of meat by measuring fluorescence, which is closely linked to bacterial density.
  • The study introduces a freshness index (FI) as a quantifiable metric for meat freshness, enabling the processing of hyperspectral data to estimate freshness even in unknown states.
  • This technology could revolutionize consumer electronics, enhancing devices like refrigerators and smartphones with advanced sensing capabilities for more personalized user experiences.
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Hierarchically-structured ratchet skimmer with superhydrophilicity for continuous recovery of high-viscosity oil.

Mar Pollut Bull

December 2024

Extreme Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Korea Institute of Science and Technology - Sungkyunkwan University Carbon-Neutral Research Center, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea. Electronic address:

Oil spill accidents have series environmental and economic impacts, increasing the demand for efficient technologies to recover oil from contaminated waters. In this study, a hierarchically structured ratchet surface with superhydrophilicity was presented as a novel oil skimming mechanism for the recovery of high-viscosity oil, particularly low-sulfur fuel oil (LSFO), which has recently been used as marine fuel in open water environments. The interaction between the superhydrophilic ratchet and oil provides favorable conditions for oil retention at the water surface.

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Unraveling Serial Degradation Pathways of Supported Catalysts through Reliable Electrochemical Liquid-Cell TEM Analysis.

J Am Chem Soc

December 2024

Department of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.

Electrochemical liquid-cell transmission electron microscopy (e-LCTEM) offers great potential for investigating the structural dynamics of nanomaterials during electrochemical reactions. However, challenges arise from the difficulty in achieving the optimal electrolyte thickness, leading to inconsistent electrochemical responses and limited spatial resolution. In this study, we present advanced e-LCTEM techniques tailored for tracking Pt/C degradation under electrochemical polarization at short intervals with high spatial resolution.

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Excessive reactive oxygen species (ROS) generated by ultraviolet (UV) irradiation significantly contribute to photoaging by increasing the level of matrix metalloproteinases (MMPs), accelerating collagen degradation. Commercial dermal fillers offer temporary wrinkle reduction via volume enhancement. In this study, we propose tilapia-derived collagen hydrogels embedded with ceria nanoparticles (Ce@Col gels) as long-lasting dermal fillers for UVB-induced photoaging.

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Bakuchiol from and its efficacy on apoptosis and autophagy in HepG2 cells.

Heliyon

December 2024

Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.

Bakuchiol (), a component of , has been reported to have estrogenic, antimicrobial, and anti-inflammatory activities. Nonetheless, its anticancer mechanisms and effectiveness against hepatocellular carcinoma remain unexplored. This study sought to elucidate the mechanism of apoptosis, autophagy, and cell cycle arrest caused by bakuchiol () and three flavonoids (-) with similar structures to compound in hepatocellular carcinoma.

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The rational design of multicomponent heterostructure is an effective strategy to enhance the catalytic activity of electrocatalysts for water and seawater electrolysis in alkaline conditions. Herein, MOF-derived nitrogen-doped carbon/nickel-cobalt sulfides coupled vertically aligned Rhenium disulfide (ReS) on carbon cloth (NC-CoNiS@ReS/CC) are constructed via hydrothermal and activation approaches. Experimental and theoretical analysis demonstrates that the strong interactions between multiple interfaces promote electron redistribution and facilitate water dissociation, thereby optimizing *H adsorption energy for the hydrogen evolution reaction (HER).

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Background: We aimed to investigate the characteristics of pediatric ulcerative colitis (UC) at diagnosis in Korea.

Methods: This was a multicenter, registry-based, inception cohort study conducted in Korea between 2021 and 2023. Children and adolescents newly diagnosed with UC < 18 years were included.

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Evaporative Morphology Tuning of Conducting Polymer Films Under Controlled Vacuum Conditions.

Adv Sci (Weinh)

December 2024

Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, 37673, Republic of Korea.

The evaporation of drops on solid surfaces is a ubiquitous natural phenomenon, and their dynamics play a pivotal role in many biological, environmental, and industrial processes. However, the complexity of the underlying mechanisms has largely confined previous studies to liquid drop evaporation under atmospheric conditions. In this study, the first comprehensive investigation of the evaporation dynamics of conducting polymer-containing drops under controlled vacuum environments is presented.

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The limited operational lifetime of quantum-dot light-emitting diodes (QLEDs) poses a critical obstacle that must be addressed before their practical application. Specifically, cadmium-free InP-based QLEDs, which are environmentally benign, experience significant operational degradation due to challenges in charge-carrier confinement stemming from the composition of InP quantum dots (QDs). This study investigates the operational degradation of InP QLEDs and provides direct evidence of the degradation process.

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Background: Complete revascularization has demonstrated better outcomes in patients with acute myocardial infarction (AMI) and multivessel disease. However, in the case of left main (LM) culprit lesion AMI with multivessel disease, there is limited evidence to suggest that complete revascularization is better.

Methods: We reviewed 16,831 patients in the Korea Acute Myocardial Infarction Registry who were treated from July 2016 to June 2020, and 399 patients were enrolled with LM culprit lesion AMI treated with percutaneous coronary intervention.

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Effect of wearable robot Bot Fit's hip joint-centered assist torque and voice coach on walking.

BMC Musculoskelet Disord

December 2024

Department of Physical Therapy, Applied Physical Therapy Lab, College of Future Convergence, Sahmyook University, Seoul, 01795, Republic of Korea.

Background: The main key to the 4th industrial era is robots, and wearable robots are incorporated into human healthcare. Samsung Electronics' Bot Fit is a hip joint-centered assistive robot that can induce walking posture and energetic walking exercises.

Methods: This study is a cross-section study.

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The native extracellular matrix is continuously remodeled to form complex interconnected network structures that reversibly regulate stem cell behaviors. Both regulation and understanding of its intricate dynamicity can help to modulate numerous cell behaviors. However, neither of these has yet been achieved due to the lack of designing and modeling such complex structures with dynamic controllability.

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High-Performance InP Quantum-Dot Light-Emitting Diodes with a NiO Nanoparticle-Embedded Hybrid Emissive Layer.

ACS Appl Mater Interfaces

December 2024

Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, and SOFT Foundry Institute, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.

Quantum-dot (QD) light-emitting diodes (QLEDs) are garnering significant attention owing to their superb optoelectrical properties, but the overinjection of electrons compared to holes into the emissive layer (EML) is still a critical obstacle to be resolved. Current approaches, such as inserting a charge-balancing interlayer and mixing p-type organic additives into the EML, face issues of process complexity and poor miscibility. In this work, we demonstrate efficient InP QLEDs by simply embedding NiO nanoparticles (NPs) into the EML which forms a homogeneous QD-metal oxide hybrid EML.

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Rapid diagnosis of cerebrospinal fluid (CSF) leaks is critical as endoscopic endonasal skull base surgery gains global prominence. Current clinical methods such as endoscopic examination with and without intrathecal injection of fluorescent dye are invasive and rely on subjective judgment by physicians, highlighting the clinical need for label-free point-of-care (POC). However, a viable solution remains undeveloped due to the molecular complexity of CSF rhinorrhea mixed with nasal discharge and the scarcity of specific biomarkers, delaying sensor development.

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