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Kinetic Study on Aminolysis of 4-Chloro-2-Nitrophenyl X-Substituted-Benzoates in Acetonitrile and in 80 mol % H2O/20 mol % DMSO: Effect of Medium on Reactivity and Reaction Mechanism
Kim. Ha-Ram, Um. Tae-Il, Kim. Min-Young, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2014, Vol.35 No.4 1128-1132 (5 pages)
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Nucleophilic Substitution Reactions of Y-Substituted-Phenyl Benzoates with Potassium Ethoxide in Anhydrous Ethanol: Reaction Mechanism and Role of K+ Ion
Kim. Song-I, Cho. Hyo-Jin, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2014, Vol.35 No.1 177-181 (5 pages)
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A Kinetic Study on Aminolysis of Benzyl 2-Pyridyl Thionocarbonate and t-Butyl 2-Pyridyl Thionocarbonate: Effects of Polarizability and Steric Hindrance on Reactivity and Reaction Mechanism
Kim. Min-Young, Bae. Ae Ri, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2013, Vol.34 No.8 2325-2329 (5 pages)
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A Kinetic Study on Nucleophilic Substitution Reactions of Phenyl Y-Substituted-Phenyl Carbonates with Z-Substituted-Phenoxides: Effect of Modification of Nonleaving Group from Benzoyl to Phenyloxycarbonyl on Reactivity and Reaction Mechanism
Min. Se-Won, Kim. Min-Young, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2012, Vol.33 No.10 3253-3257 (5 pages)
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Kinetics and Reaction Mechanism for Aminolysis of Benzyl 4-Pyridyl Carbonate in H2O: Effect of Modification of Nucleofuge from 2-Pyridyloxide to 4-Pyridyloxide on Reactivity and Reaction Mechanism
Kang. Ji-Sun, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2012, Vol.33 No.7 2269-2273 (5 pages)
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Alkaline Hydrolysis of Y-Substituted Phenyl Phenyl Thionocarbonates: Effect of Changing Electrophilic Center from C=O to C=S on Reactivity and Mechanism
Kim. Song-I, Park. Hey-Ran, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2011, Vol.32 No.1 179-182 (4 pages)
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Kinetics and Mechanism of Nucleophilic Displacement Reactions of Y-Substituted Phenyl Benzoates with Z-Substituted Phenoxides
Min. Se-Won, Seo. Jin-A, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2009, Vol.30 No.10 2403-2407 (5 pages)
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Kinetic Study on Michael-type Reactions of 1-Phenyl-2-propyn-1-one with Alicyclic Secondary Amines: Effect of Medium on Reactivity and Mechanism
Hwang. So-Jeong, Park. Youn-Min, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2008, Vol.29 No.10 1911-1914 (4 pages)
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Kinetics and Mechanism of Triethylamine Catalysed Michael Addition of Benzenethiol to 1-(2-Nitrovinyl)benzene in Acetonitrile
Sarathi. P.A., Gnanasekaran. C., Shunmugasundaram. A. 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2008, Vol.29 No.4 790-794 (5 pages)
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Reaction Mechanism and Structure of Transition State Determined from Analysis of Bronsted βnuc for Aminolysis of 4-Nitrophenyl Diphenylphosphinate
Shin. Young-Hee, Kim. Eun-Hee, Um. Ik-Hwan 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2008, Vol.29 No.12 2509-2512 (4 pages)
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Aminolyses of Y-substituted Phenyl 2-Furoates and Cinnamates: Effect of Nonleaving Group Substituent on Reactivity and Mechanism
Um. Ik-Hwan, Akhtar. Kalsoom, Park. Youn-Min, Khan. Sher Bahadar 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2007, Vol.28 No.8 1353-1357 (5 pages)
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Cyclophilin A as a New Therapeutic Target for Hepatitis C Virus- induced Hepatocellular Carcinoma
JinhwaLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.5 1 375-383 (9 pages)
Hepatocellular carcinoma (HCC) related to hepatitis B virus (HBV) and hepatitis C virus (HCV) infections is thought to account for more than 80% of primary liver cancers. Both HBV and HCV can establish chronic liver inflammatory infections, altering hepatocyte and liver physiology with potential liver disease progression and HCC development. Cyclophilin A (CypA) has been identified as an essential host factor for the HCV replication by physically interacting with the HCV non structural protein... -
Functional Connectivity Map of Retinal Ganglion Cells for Retinal Prosthesis
JangHeeYe, SangBaekRyu, KyungHwanKim, YongSookGoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.6 4 307-314 (8 pages)
Retinal prostheses are being developed to restore vision for the blind with retinal diseases such as retinitis pigmentosa (RP) or age-related macular degeneration (AMD). Among the many issues for prosthesis development, stimulation encoding strategy is one of the most essential electrophysiological issues. The more we understand the retinal circuitry how it encodes and processes visual information, the greater it could help decide stimulation encoding strategy for retinal prosthesis. Therefore,... -
Inhibitory Effect of Esculetin on the Inducuble Nitric Oxide Synthase Expression in TNF-stimulated 3T3-L1 Adipocytes
Jeong-YehYang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.5 7 283-287 (5 pages)
While nitric oxide (NO) produced by inducible nitric oxide synthase (iNOS) is beneficial for host survival, it is also detrimental to the host. Thus, regulation of iNOS gene expression may be an effective therapeutic strategy for the prevention of unwanted reactions at various pathologic conditions. During the screening process for the possible iNOS regulators, we observed that esculetin is a potent inhibitor of cytokine-induced iNOS expression. The treatment of 3T3-L1 adipocytes with the tumor... -
Spatial and Temporal Genetic Diversity and Population Structure of Hemileia vastatrix from Peruvian Coffee Plantations
Cinthia Quispe-Apaza, Roberto Mansilla-Samaniego 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 7 280-290 (11 pages)
Population genetic studies of Hemileia vastatrix have been conducted in order to describe the evolutionary dynamics of the pathogen and the disease epidemiology as consequence of changes in disease management and host distribution occurred in Peru after the 2013 epi- demic. These analyses were performed by sequencing the internal transcribed spacers of the nuclear ribosom- al DNA (rDNA-ITS) of H. vastatrix collected from two coffee growing areas in 2014 and 2018. H. vastatrix pop- ulation showed... -
An Expected Crisis : A Case Study of Volkswagen Diesel Crisis
Sang Yeal Lee, Hong min Ahn, Yong Suk Cho 한국광고PR실학회 광고PR실학연구 21 Pages
한국광고PR실학회 광고PR실학연구 2017, 제 10권 1호 10 244-264 (21 pages)
This exploratory case study analyzes the Volkswagen diesel crisis from a crisis communication perspective. The Volkswagen diesel case provides a unique opportunity to examine how a Fortune 500 company managed (or mismanaged) an intentional corporate misdeed, and to understand the shortcomings of existing crisis communication theories. In analyzing the case, this study adopted the theoretical frameworks from the two dominant crisis communication theories, namely Image Repair Theory and... -
Quality Early Childhood Care and Education in India:Initiatives, Practice, Challenges and Enablers
Chandra Reetu, Gulati Renu, Sharma Adarsh 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 27 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2017, Vol.11 No.1 3 41-67 (27 pages)
Early Childhood Care and Education (ECCE) is globally recognized as a crucial element of education for all. Therefore, countries have intensely pursued it. After many efforts, progress towards ensuring ECCE is apparent in many countries in the world. But most of them could not either completely achieve this goal or compromised its quality due to inadequate resources, improper planning and ineffective implementation strategies; especially a vast and populous country like India. A number of... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist...
