Chang-Hwan Kim

ORCID: 0000-0002-8545-5244
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About
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Research Areas
  • Diverse Approaches in Healthcare and Education Studies
  • Education and Learning Interventions
  • Advanced Radiotherapy Techniques
  • Education, Safety, and Science Studies
  • Health and Wellbeing Research
  • Asian Culture and Media Studies
  • Healthcare and Venom Research
  • Palliative Care and End-of-Life Issues
  • Radiation Therapy and Dosimetry
  • Healthcare Education and Workforce Issues
  • Nutrition, Health and Food Behavior
  • Diverse Topics in Contemporary Research
  • Peripheral Artery Disease Management
  • Medical Imaging Techniques and Applications
  • Family and Patient Care in Intensive Care Units
  • Geriatric Care and Nursing Homes
  • Educational Systems and Policies
  • Radiation Dose and Imaging
  • Wireless Communication Networks Research
  • Cooperative Communication and Network Coding
  • Diagnosis and Treatment of Venous Diseases
  • Urticaria and Related Conditions
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Dermatology and Skin Diseases
  • Effects of Radiation Exposure

Hallym University Dongtan Sacred Heart Hospital
2025

Jeju National University
2023-2025

Jeju National University Hospital
2023-2025

Yonsei University
1992-2025

Johns Hopkins University
2022-2024

Yeungnam University Medical Center
2023

Samsung Medical Center
2018-2022

Sungkyunkwan University
2022

Samsung (South Korea)
2022

Asan Medical Center
2021

Signaling of the Toll-like receptor (TLR) is closely associated with tumor development and progression processes including cell proliferation, angiogenesis, metastasis, immunosuppression. In this study, we examined expression TLR5 in gastric cancer cells its function proliferation. RT-PCR revealed that gene was expressed all lines examined, SNU638, SNU601, SNU216, AGS. The agonist, flagellin, induced IL-8 production NF-κB activation lines. addition, flagellin enhanced proliferation whereas...

10.3892/ijmm.2011.656 article EN International Journal of Molecular Medicine 2011-03-23

Predicting radiation dermatitis (RD), a common radiotherapy toxicity, is essential for clinical decision-making regarding toxicity management. This prospective study aimed to develop and validate machine-learning model predict the occurrence of grade ≥ 2 RD using thermal imaging in early stages head neck cancer. Thermal images skin surfaces were acquired weekly during radiotherapy. A total 202 used calculate difference map temperature analyze extract features. Changes features treatment...

10.1186/s12885-025-13734-8 article EN cc-by BMC Cancer 2025-02-20

Background: Physical activity greatly affects human physical and mental health. This study investigated the effect of college students’ levels on depression personal relationships. Methods: Participants were 525 students from five Korean cities. The International Activity Questionnaire, Beck’s Depression Inventory, Leary’s interpersonal orientation paper test measured volume, depression, relationships, respectively. Data analyzed using descriptive statistics, reliability analysis, one-way...

10.3390/healthcare9050526 article EN Healthcare 2021-04-29

This study aimed to develop a new approach predict radiation dermatitis (RD) by using the skin dose distribution in actual area of RD occurrence determine predictive grade.

10.1088/1361-6560/ad4d4e article EN Physics in Medicine and Biology 2024-05-17

For the cancer cells which have overcome second mitotic clock (M2), activated telomerase is essential and used as another marker of immortality. Many trials had been initiated to target telomerase, known be specific tumors. To determine best in vitro cell system for testing efficacy inhibitors, we evaluated activity various lines measured their telomere lengths. We also treated some with adriamycin changes activity. Telomerase was TRAP (telomeric repeat amplification protocol) assay....

10.3892/ijo.13.3.489 article EN International Journal of Oncology 1998-09-01

Sport center managers are likely to maximize member satisfaction by developing products or services that tailored the different groups of sport members. A necessary step, then, is identify segments This study attempts in Seoul, Korea, as determined members' attitudes toward 33 service items. 2-stage cluster analysis approach which Ward's minimum variance method used at first stage and K-means second was employed using SPSS statistical package. yielded 5 were then analyzed employing ANOVA...

10.1123/jsm.12.4.273 article EN Journal of Sport Management 1998-10-01

Dental technicians are exposed to methyl methacrylate(MMA) and hard metal dusts while working, several cases of hypersensitivity pneumonitis caused by the exposure have been reported. The authors experienced a case in female dental technician who had 10 years' work experience report with clinical evidence.The patient's work, personal, social, past present medical histories were investigated based on patient questioning records. Furthermore, workplace conditions tools materials worked also...

10.1186/2052-4374-25-19 article EN cc-by-nc Annals of Occupational and Environmental Medicine 2013-10-04

Non-destructive label-free continuous monitoring of in vitro tissue culture is an unmet demand engineering. Noting that different compositions cartilage lead to electrical properties, we propose a new method measure the conductivity and its anisotropy during chondrogenesis. We used tensor probe with 17 electrodes bio-impedance spectroscopy (BIS) device values ratios at bottom top surfaces samples period 6 weeks. Clearly distinguishing glycosaminoglycans (GAGs), collagen, also various...

10.1002/bit.25350 article EN Biotechnology and Bioengineering 2014-07-31

Stereotactic body radiation therapy (SBRT) and stereotactic radiosurgery (SRS) are advanced techniques capable of delivering higher doses precisely to small complex targets. As these delivered, the significance patient-specific quality assurance becomes increasingly crucial ensure both effectiveness safety treatment. This study investigates depth field size dependence in Octavius 1000 SRS (PSQA), which is vital for ensuring accuracy modern radiotherapy treatments. It comprehensively compares...

10.1016/j.radphyschem.2024.111892 article EN cc-by-nc-nd Radiation Physics and Chemistry 2024-06-02

<title>Abstract</title> Log data from radiation treatment machines can play a crucial role in quality assurance by enabling the recalculation of delivered dose distribution and identification deviations delivery. This paper proposes novel method for recalculating carbon-ion therapy (CIRT) using log data. The proposed approach leverages existing functionality commercial planning systems, thus, eliminating need specialized in-house software calculation evaluation. performed tests entail...

10.21203/rs.3.rs-4416279/v1 preprint EN cc-by Research Square (Research Square) 2024-06-12

Objective : The purpose of this report is to know the effect Jibaekjihwang-tang(知栢地黃湯) on progressive pigmented purpuric dermatosis. Methods We experienced one case dermatosis treated with Jibaekjihwang-tang(知栢地黃湯). used visual analogue scale(VAS). Results After treatment grade VAS was decreased and purpuras, pruritus dryness skin were disappeared. Conslusion can be

10.6114/jkood.2013.26.2.109 article EN The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology 2013-05-25
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