Publications by authors named "DongHyun Ko"

Topic: The placebo effect and its potential determinants in ocular hypotensive therapy.

Clinical Relevance: The placebo effect has been studied and documented within a wide clinical context. It remains unclear whether placebo is effective in glaucoma treatment or, if so, which factors are determinative of effect size (ES).

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Purpose: The aim of this study was to build and validate modified score to be used in the healthcare cost and utilization project databases for further classification of acute pancreatitis (AP).

Materials And Methods: The National Inpatient Sample database for the years 2016-2019 was queried for all primary adult discharge diagnoses of AP. An mBISAP score system was created utilizing the ICD-10CM codes for pleural effusion, encephalopathy, acute kidney injury, systemic inflammatory response, and age >60.

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Background: Bariatric surgery (BSx) is one of the most common surgical procedures performed in the USA. Nonetheless, data regarding 11-month period after BSx remain limited.

Methods: A retrospective cohort study using the 2016 National Readmission Database.

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With the development of wireless networks and mobile devices, interest on indoor localization systems (ILSs) has increased. In particular, Wi-Fi-based ILSs are widely used because of the good prediction accuracy without additional hardware. However, as the prediction accuracy decreases in environments with natural noise, some studies were conducted to remove it.

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Magnetic hydrogels have been commonly used in biomedical applications. As magnetite nanoparticles (MNPs) exhibit peroxidase enzyme-like activity, magnetic hydrogels have been actively used as signal transducers for biomedical assays. Droplet microfluidics, which uses photoinitiated polymerization, is a preferred method for the synthesis of magnetic hydrogels.

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Phosphate is a ubiquitous pollutant in aquatic systems, and increasingly stringent post-treatment phosphate effluent standards necessitate increasingly efficient removal techniques. In this study, mesoporous lanthanum hydroxide (MLHO) was synthesized by a hard-template method using ordered mesoporous silica, and its potential as an adsorbent for high-efficiency phosphate removal in aqueous solutions was tested. The porosity characteristics of MLHOs were controlled by adjusting the template structure and synthesis conditions.

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During influenza A virus (IAV) infection, significant effects of oxidative stress often emerge due to the disruption of the redox balance. Reactive oxygen species (ROS) generated during IAV infection have been known to exert various effects on both the virus and host tissue. However, the mechanisms underlying the accumulation of ROS and their physiological significance in IAV infection have been extensively studied but remain to be fully understood.

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Low operational lifetime is a critical issue in perovskite light-emitting diodes. The forward-bias currents for light emission accelerate device degradation, which needs to be identified and understood to be able to improve the device stability. Here, we systematically analyze the degradation mechanism of perovskite light-emitting diodes (PeLEDs) fabricated with a sequential deposition method that produce a compact and pinhole-free perovskite film.

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[reaction: see text] A new N-triflated amino alcohol-titanium catalyst was designed for the asymmetric ethylation of aldehydes. This binaphthyl-based sulfonamido alcohol ligand shows uniformly high yield and enantioselectivity in the diethylzinc additions of aromatic, aliphatic, and unsaturated aldehydes.

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[reaction: see text] A set of 2-dialkylaminomethyl-2'-hydroxy-1,1'-binaphthyls was prepared and used in the catalytic asymmetric additions of diethylzinc and diphenylzinc to various types of aldehydes. These binaphthyl-based axially chiral amino alcohols show high enantioselectivity in the addition of organozincs to aromatic and aliphatic aldehydes.

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