A5004974330- Diverse Approaches in Healthcare and Education Studies
- Health and Wellbeing Research
- Ocular Surface and Contact Lens
- Catalysis and Oxidation Reactions
- 3D Printing in Biomedical Research
- Healthcare Education and Workforce Issues
- Surfactants and Colloidal Systems
- Workplace Health and Well-being
- Catalytic Processes in Materials Science
- Glaucoma and retinal disorders
- Hydrogels: synthesis, properties, applications
- Mesoporous Materials and Catalysis
- Diverse Topics in Contemporary Research
- Healthcare professionals’ stress and burnout
- Data Visualization and Analytics
- Korean Urban and Social Studies
- Advancements in Transdermal Drug Delivery
- Color perception and design
- Big Data and Business Intelligence
- Ophthalmology and Visual Impairment Studies
- Polydiacetylene-based materials and applications
- Job Satisfaction and Organizational Behavior
- Consumer Perception and Purchasing Behavior
- Catalysts for Methane Reforming
- Retinal and Optic Conditions
Seoul National University of Science and Technology
2021-2024
Chungbuk National University
2014
The degree of protonation contact lens materials is affected by the surrounding pH environment, due to different pKa values. swelling ionic lenses generally controlled these factors which determines physical properties lenses. purpose this study was evaluate dependence etafilcon A and non-ionic hilafilcon B were used in study. diameter, refractive power, equilibrium water content (EWC), amounts freezable-free (Wff), freezable-bound (Wfb) non-freezable (Wnf) at each condition measured. power...
Ophthalmic hydrogels are known for their hydrophilicity, which although beneficial eye comfort, also predisposes them to absorbing external compounds, including potentially harmful phthalates. This study investigated the absorption of dimethyl phthalate and diethyl phthalate, plasticizers found in numerous consumer products by ophthalmic hydrogels. The results demonstrate differential capacities between two hydrogels, attributed distinct compositions. interaction phthalates is be...
Contact lens materials include polymers that are ionized in the ocular pH condition and susceptible to protein deposition due their surface characteristics. Herein, we investigated effect of electrostatic state contact material on level using hen egg white lysozyme (HEWL) bovine serum albumin (BSA) as model proteins etafilcon A hilafilcon B materials. Only HEWL showed a statistically significant pH-dependency (p < 0.05); increased with pH. positive zeta potential at acidic pH, while BSA...
Benzalkonium chloride (BKC) is a cationic surfactant used as component in ophthalmic eye drops. The effects of BKC on the and simple binding contact lens surface have been reported other studies. However, exact value affinity surfaces its physical properties lenses not studied. Here, toward two types lenses, those with wetting agent polyvinylpyrrolidone (PVP) without, was calculated. In addition, refractive power, UV–vis transmittance, angle, water content, base curve, diameter after...
The purpose of this study is to assess the quantity and quality myopia related articles from 2001 2021 using bibliometric methods. number published citations, correlation analysis between gross domestic product (GDP) annual publication citations was investigated. proportion East Asia accounted for 55.28% in 2021. researchers China most on during 2021, followed by Japan South Korea. Korea showed an exponential increase with strong positive GDP. All 3 countries are mainly researching...
염화 지르코니움산화물을 수용액상하에 <TEX>$100^{\circ}C$</TEX>에서 다양한 숙성 시간 동안 환류시켜 지르코니움 수화물을 제조하였고 결정성 <TEX>$ZrO_2$</TEX>를 얻기 위하여 <TEX>$700^{\circ}C$</TEX>에서 6시간 소성하였다. 제조된 물질의 특성분석을 시차 열분석, X-선회절 분석, 비표면적과 세공분포 측정, 투과 전자 현미경 암모니아 승온 탈착 이산화탄소 분석 그리고 이소프로판올 분석을 수행하였다. 24시간 숙성시키고 소성 후 순수한 정방형계 지르코니아만을 얻을 수 있었다. 숙성시간 증가는 상대적으로 더 작은 입자, 고비표면적 및 고 기공부피의 지르코니아를 제조할 지르코니아의 시간이 길어질수록 흡착된 암모니아의 양이 증가하는 경향을 보였고 이산화탄소의 양은 감소하였다. 지르코니아 촉매상에서 프로필렌을 생성하는 탈수 반응에서 촉매 활성은 168시간 숙성하여 제조한 촉매가 가장 좋은 활성이 나타냈다. 이러한 촉매활성은 촉매의...
목적: 본 연구는 안경사의 직무스트레스의 요인과 우울증상의 정도를 분석하여 상관관계를 파악하였다. 방법: 수도권에 종사하는 153명의 안경사를 무작위로 선별하여 설문조사를 실시하였다. 배포된 설문지 중 주요 변수에 대한 응답이 부실한 설문 4부를 제외한 149부의 설문을 분석하였다. 대상자의 정도는 Beck 우울 척도(Beck Depression Inventory-II: BDI-II)로, 한국인 직무스트레스 측정도구(Korean Occupational Stress Scale: KOSS)를 이용하여 SPSS Statistic 18.0로 결과: 연구 대상자 우울증상이 있는 집단이 18.8%, 없는 81.2%로 나타났다. 우울증상은 성별, 주관적 건강 상태 및 경제 상태와 유의한 차이를 보였으며 평균 점수는 군이 군에 비해 총점을 포함한 모든 항목에서 높게 직무불안정성을 항목과 통계적으로 유의하였다. 하위 BDI-II에 따른 우울증상 점수와의 분석한 결과, 총점, 조직체계,...
Ophthalmic hydrogels are known for their hydrophilicity, which although beneficial eye comfort, also predisposes them to absorbing external compounds, including potentially harmful phthalates. This study investigated the absorption of dimethyl phthalate (DMP) and diethyl (DEP), plasticizers found in numerous consumer products by ophthalmic hydrogels. We that these phthalates exhibited differential binding kinetics toward different hydrogel materials significantly between etafilcon A...
Abstract Artificial intelligence (AI) has emerged as a transformative force with great potential in various fields, including healthcare. In recent years, AI garnered significant attention due to its revolutionise ophthalmology, leading advancements patient care such disease detection, diagnosis, treatment and monitoring of progression. This study presents comprehensive analysis the research trends collaborative networks at intersection ophthalmology. this study, we conducted an extensive...
Purpose: The landscape of academic publishing is experiencing significant transformations, characterized by an increasing volume research output and the growth interdisciplinary studies. These developments pose complex challenges for editorial boards, necessitating advanced strategies submission management maintenance publication standards.Methods: Utilizing network analysis, this study examined 1,865 articles from <i>Applied Biological Chemistry</i> 1,081 <i>Journal...
Mg/Al 몰비를 1에서 3 범위에서 변화시켜 Mg-Al 혼합산화물을 공침법으로 제조하였다. 제조된 혼합산화물은 X-선회절분석, 주사전자현미경분석, 질소흡착에 의한 비표면적 및 기공부피 측정, 이소프로판올의 승온탈착모델 반응으로 산화물의 특성분석을 수행하였다. 소성된 탈수소/탈수반응에 적용하여 산염기 특성을 비교하였다. 혼합산화물에서 Al 함량이 증가함에 따라 산점세기가 비례적으로 증가하였다. 이러한 산점세기 변화는 전환율 프로필렌 선택도에 직접적인 영향을 미쳤다. mixed oxides with molar ratio of = 1-3 were prepared by co-precipitation and characterized using X-ray diffraction, scanning electron microscopy, BET surface area pore volume measured <TEX>$N_2$</TEX> sorption analysis, temperature...