A5010697582- Advanced Radiotherapy Techniques
- Radiation Therapy and Dosimetry
- Medical Imaging Techniques and Applications
- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Effects of Radiation Exposure
- Radiation Detection and Scintillator Technologies
- Radiomics and Machine Learning in Medical Imaging
- Lung Cancer Diagnosis and Treatment
- Motivation and Self-Concept in Sports
- Head and Neck Cancer Studies
- Breast Cancer Treatment Studies
- Education and Learning Interventions
- Education, Achievement, and Giftedness
- Educational Systems and Policies
- Innovation in Digital Healthcare Systems
- Grit, Self-Efficacy, and Motivation
- Consumer Perception and Purchasing Behavior
- Radiation Effects and Dosimetry
- Phytochemicals and Antioxidant Activities
- Technology and Data Analysis
- Wireless Communication Networks Research
- Garlic and Onion Studies
- Digital Radiography and Breast Imaging
- Phonetics and Phonology Research
Seoul National University Hospital
2015-2024
Seoul National University
2015-2024
Korea Food Research Institute
2024
University of Colorado Denver
2011-2022
University of Nebraska–Lincoln
2019
Korea Institute of Radiological and Medical Sciences
2019
Samsung (South Korea)
2019
New Generation University College
2018
Advanced Institute of Convergence Technology
2015-2017
Kangbuk Samsung Hospital
2012-2017
Lipopolysaccharide, the endotoxin of Gram-negative bacteria, induces extensive immune responses that can lead to fatal septic shock syndrome. The core receptors recognizing lipopolysaccharide are CD14, TLR4, and MD-2. CD14 binds presents it TLR4/MD-2 complex, which initiates intracellular signaling. In addition lipopolysaccharide, is capable a few other microbial cellular products. Here, we present first crystal structure 2.5 angstroms resolution. A large hydrophobic pocket was found on...
The objective of this study was to investigate the hypoglycemic effects quercetin (QE) in animal models diabetes mellitus (DM).A starch solution (1 g/kg) with and without QE (100 mg/kg) or acarbose (40 orally administered streptozotocin (STZ)-induced diabetic rats after an overnight fast.Postprandial plasma glucose levels were measured incremental areas under response curve calculated.To chronic feeding QE, five-week-old db/db mice fed AIN-93G diet, a diet containing at 0.08%, 0.03% for 7...
Hyperglycemia in the diabetic state increases oxidative stress and antioxidant therapy can be strongly correlated with decreased risks for complications. The purpose of this study is to determine effect garlic aged black animal model type 2 diabetes. activity was measured as scavenging free radicals by trolox equivalent capacity (TEAC) assay. Three week-old db/db mice were fed AIN-93G diet or containing 5% freeze-dried 7 weeks after 1 week adaptation. Hepatic levels lipid peroxides...
Over 20 enzymes denoted as cyclomaltodextrinase, maltogenic amylase, or neopullulanase that share 40–86% sequence identity with each other are found in public data bases. These distinguished from typical α-amylases by containing a novel N-terminal domain and exhibiting preferential substrate specificities for cyclomaltodextrins (CDs) over starch. In this research field, great deal of confusion exists regarding the features distinguishing three groups one another. Although different enzyme...
To investigate the sensitivity of various gamma criteria used in gamma-index method for patient-specific volumetric modulated arc therapy (VMAT) quality assurance (QA) stereotactic body radiation (SBRT) using a flattening filter free (FFF) photon beam.Three types intentional misalignments were introduced to original high-definition multi-leaf collimator (HD-MLC) plans. The first type, referred Class Out, involved opening each bank leaves. second In, closing third Shift, shifting leaves...
BACKGROUND/OBJECTIVES: Obesity-associated insulin resistance is a strong risk factor for type 2 diabetes mellitus.The aim of this study was to investigate the effect myricetin on adiposity, resistance, and inflammatory markers in mice with diet-induced resistance.MATERIALS/METHODS: Five-week-old male C57BL/6J were fed basal diet, high-fat, high-sucrose (HFHS) or HFHS diet containing 0.06% 0.12% 12 weeks after 1-week adaptation, body weight food intake monitored.After sacrifice, serum lipid...
Purpose The aim of this study was to assess the feasibility and advantages a patient-specific breast bolus made using 3D printer technique. Methods We used anthropomorphic female phantom with attachments, which volumes are 200, 300, 400, 500 650 cc. simulated treatment for right patient parallel opposed tangential fields. Treatment plans were investigate effect unwanted air gaps under on dose distribution whole breast. commercial Super-Flex 3D-printed polylactic acid (PLA) applied skin...
Obesity has become a worldwide health problem.Orlistat, an inhibitor of pancreatic lipase, is currently approved as anti-obesity drug.However, gastrointestinal side effects caused by Orlistat may limit its use.In this study the inhibitory activities dandelion (Taraxacum officinale) against lipase in vitro and vivo were measured to determine possible use natural agent.The 95% ethanol extract T. officinale using 4-methylumbelliferyl oleate (4-MU oleate) substrate at concentrations 250, 125,...
The aim of this study was to compare the plan quality magnetic-resonance image-based intensity modulated radiation therapy (MRI-based-IMRT) with MRIdian Linac system that volumetric arc (VMAT) TrueBeam STx for lung stereotactic ablative radiotherapy (SABR). A total 22 patients tumors located in lower lobe were retrospectively selected study. For each patient, both MRI-based-IMRT and VMAT plans generated using an identical CT image set structures exception planning target volume (PTV). PTVs...
In 3GPP long term evolution (LTE) system, initial cell search procedure comprises two steps using primary synchronization signal (PSS) and secondary (SSS). This paper presents SSS detection method for second step of search. general, coherent estimated channel frequency response (CFR) at PSS is used detection, but performance degradation occurred by difference between in time division duplex (TDD) mode. Thus we propose non-coherent partial correlation differential correlation. Moreover,...
We investigate the gamma passing rate (GPR) consistency when applying different types of analyses, linacs, and dosimeters for volumetric modulated arc therapy (VMAT).A total 240 VMAT plans various treatment sites, which were generated with Trilogy (140 plans) TrueBeam STx (100 plans), retrospectively selected. For each plan, planar dose distributions measured both MapCHECK2 ArcCHECK dosimeters. During distribution measurements, actual multileaf collimator (MLC) positions, gantry angles,...
Abstract Objective. To evaluate the reduction in energy dependence and aging effect of lithium salt pentacosa−10,−12-diynoic acid (LiPCDA) films with additives including aluminum oxide (Al 2 O 3 ), propyl gallate (PG), disodium ethylenediaminetetracetate (EDTA). Approach . LiPCDA exhibited on kilovoltage (kV) megavoltage (MV) photon energies experienced deterioration over time. Evaluations were conducted added Al antioxidants to mitigate these issues, produced without assess dependence. The...
To investigate the plan quality of tri-Co-60 intensity-modulated radiation therapy (IMRT) plans for spine stereotactic ablative radiotherapy (SABR).A total 20 patients with metastasis were retrospectively selected. For each patient, a IMRT and volumetric-modulated arc (VMAT) generated. The spinal cords defined based on MR images IMRT, while isotropic 1-mm margins added to VMAT plans. generated 10-MV flattening filter-free photon beams TrueBeam STx™ (Varian Medical Systems, Palo Alto, CA),...
Abstract The major purpose of this study was to investigate the relationships among properties college students' self-set academic goals and achievement, using multiple theoretical perspectives. Using a personal goal-based research methodology, students enrolled in learning-to-learn course (N = 130) were asked list 20 their (academic and/or non-academic). For each goals, goal specificity, value, expectation success autonomous controlled motivation measured then ratings on property averaged...
To investigate the patterns of post-lumpectomy seroma volume (SV) change and related clinical factors to determine benefits adaptive planning in magnetic resonance imaging (MRI)-guided partial breast irradiation (PBI).MRI data obtained from 37 women with early cancer acquired at simulation 1st, 6th, 10th fractions were analyzed. The target (PTV) was defined as unequal margins 10-15 mm added according directional surgical margin status each seroma. Treatment performed using a 0.35 T...
The purpose of this study was to investigate the effects lotus leaf on hyperglycemia and dyslipidemia in animal model diabetes. Inhibitory activity ethanol extract against yeast α-glucosidase measured vitro. effect postprandial increase blood glucose levels assessed streptozotocin-induced diabetic rats. A starch solution (1 g/kg) with without (500 mg/kg) administered rats after an overnight fast, plasma were monitored. Four-week-old db/db mice fed a basal diet or containing 1% for 7 weeks 1...