ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 65, Number 2
JKCSEZ 65(2)
April 20, 2021 

79  

Analysis of Copper-Zinc Binary Mixture using Microsoft Excel Solver
엑셀 해찾기 프로그램을 통한 구리-아연 혼합용액의 분석
Ra Yun Kim, In Yong Eom*
Keywords: 엑셀 해찾기 프로그램, 구리정량, 아연정량, 구리-아연 혼합용액, 흡광도
DOI: https://doi.org/10.5012/jkcs.2021.65.2.79

Abstract  |  Full Text: PDF    JATS XML

83  

Characterization of a Site-specifically Modified Human Dihydrolipoamide Dehydrogenase Mutant Showing Significantly Changed Kinetic Properties
Hakjung Kim
Keywords: Dihydrolipoamide dehydrogenase, Pyridine nucleotide-disulfide oxidoreductase, Flavoenzyme
DOI: https://doi.org/10.5012/jkcs.2021.65.2.83

Abstract  |  Full Text: PDF    JATS XML

88  

Performance Embodiment of Acrylic Material in Art Painting Creation
Ke Xie
Keywords: Acrylic material, Art, Painting creation, Performance comparison, Oil painting, Watercolor
DOI: https://doi.org/10.5012/jkcs.2021.65.2.88

Abstract  |  Full Text: PDF    JATS XML

93  

Transition Metal Complexes Derived From 2-hydroxy-4-(p-tolyldiazenyl)benzylidene)-2-(p-tolylamino)acetohydrazide Synthesis, Structural Characterization, and Biological Activities
Ahmed N Alhakimi*, Mohamad M E Shakdofa, S El Sayed Saeed, Adel M E Shakdofa, Maged S Al Fakeh, Ashwaq M Abdu, Ibrahim A Alhagri
Keywords: Antimicrobial, Azo-Hydrazone, Acetohydrazide, Azo-aldehyde, Metal complexes
DOI: https://doi.org/10.5012/jkcs.2021.65.2.93

Abstract  |  Supporting Information  |  Full Text: PDF    JATS XML

106  

Synthesis, Antioxidant and Molecular Docking Studies of (?)-Catechin Derivatives
Deepak Kumar, Raj Kumar, R Ramajayam, Keun Woo Lee, Dong Soo Shin*
Keywords: Catechin, Antioxidants, Molecular docking, STAT1, BHT
DOI: https://doi.org/10.5012/jkcs.2021.65.2.106

Abstract  |  Supporting Information  |  Full Text: PDF    JATS XML

113  

Synthesis of Asymmetric Pyrazoline Derivatives from Phenylthiophenechalcones; DFT Mechanistic Study
Asmaa Aboelnaga, Eman Mansour*, Hoda A Ahmed, Mohamed Hagar*
Keywords: Phenylthiophenechalcone, Conformers, Carbothioamide, Pyrazole, DFT, Mechanistic study
DOI: https://doi.org/10.5012/jkcs.2021.65.2.113

Abstract  |  Supporting Information  |  Full Text: PDF    JATS XML

121  

Secondary Structure for RNA Aptamers Binding to Guanine-Rich Sequence in the 5'-UTR RNA of N-Ras Oncogene
Bongrae Cho
Keywords: Secondary structure, RNA aptamer, guanine-rich sequence RNA, RNA structural probe
DOI: https://doi.org/10.5012/jkcs.2021.65.2.121

Abstract  |  Full Text: PDF    JATS XML

125  

Electrochromic Performance of NiOx Thin Film on Flexible PET/ITO Prepared by Nanocrystallite-Dispersion Sol
Jun Young Kwak, Young Hee Jung, Juyun Park, Yong Chul Kang, Yeong Il Kim*
Keywords: Nonstoichimetric nickel oxide, Electrochromic, Nanocrystallite-dispersion sol
DOI: https://doi.org/10.5012/jkcs.2021.65.2.125

Abstract  |  Full Text: PDF    JATS XML

133  

Analysis of Teacher Understanding After Adapting Collaborative Problem-Solving for Character Competence (CoProC) Program on Science Education
과학교육 기반 인성역량 함양을 위한 협력적 문제해결(CoProC) 프로그램 실천 교사들의 이해 분석
Eugene Kang, Jihun Park, Jongseok Park, Jeonghee Nam*
Keywords: 인성 교육, 교사 인식, 과학 교육, 협력적 문제 해결 ,  Character education, Teacher recognition, Science education, Collaborative problem solving
DOI: https://doi.org/10.5012/jkcs.2021.65.2.133

Abstract  |  Full Text: PDF    JATS XML

145  

High School Exploration of a Phase Change Material as a Thermal Energy Storage
Kwanhathai Ardnaree, Darapond Triampo, Supan Yodyingyong*
Keywords: Phases change, Phase transition, Hands-on activity, High school laboratory, Introductory chemistry
DOI: https://doi.org/10.5012/jkcs.2021.65.2.145

Abstract  |  Full Text: PDF    JATS XML

151  

A Comparative Analysis of the Method of Evaluation of Character Competence in High School Chemistry Classes Based on Collaborative Problem-Solving for Competency(CoProC) Instruction Model
협력적 문제해결 중심 교수모델(CoProC)을 적용한 고등학교 화학 수업에서의 인성역량 평가 방법에 대한 비교 분석
Minjung Kim, Jihun Park, Jongseok Park, Jeongwoo Son, Jeonghee Nam*
Keywords: 협력적 문제해결 중심(CoProC) 교수모델, 인성역량 검사, 논의과정, 반성 글쓰기, 인성역량 평가 ,  Collaborative Problem-Solving for Competency (CoProC) instruction model, Character competence test, Argumentation, Reflective writing, Evaluation of character competence
DOI: https://doi.org/10.5012/jkcs.2021.65.2.151

Abstract  |  Full Text: PDF    JATS XML

166  

Novel Synthesis of Thioflavones and Their Pyridyl Analogs from 2-Mercaptobenzoic(nicotinic) Acid
Jae In Lee
Keywords: Thioflavones, 2-Phenyl-4H-thiopyrano[2,3-b]pyridin-4-ones, Acylation, 6-endo Cyclization
DOI: https://doi.org/10.5012/jkcs.2021.65.2.166

Abstract  |  Supporting Information  |  Full Text: PDF    JATS XML