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한국산 새코미꾸리속 koreocobitis 어류의 골학적 연구
김익수,안정현,김병직 한국어류학회 2002 韓國魚類學會誌 Vol.14 No.1
미꾸라지과에 속하는 새미꾸리속 어류의 골격계를 경골과 연골로 구분지어 두개골, 상각 및 하악, 현수골, 설궁, 새궁, 척추골 및 부속골격, 전대 그리고 요대로 구분하여 관찰 · 기재하였고 근연군으로 생각되어 왔던 미꾸리속 및 기름종개속 어류의 기존에 보고된 골학적 특성과 비교하였다. 대부분의 골격에 있어서 미꾸리아와 어류의 다른 속의 골격계와 거의 일치하였는데, 새궁에서 제 3기새골이 연골로서 신장되어 잇는 점, 하새골이 모두 4쌍으로 제 4하새골이 크기는 작지만 연골로서 존재한다는 점, 그리고 인새골이 모두 3쌍으로 제3인새골이 연골이지만 뚜렷하게 존재한다는 점에서 차이가 있었다. 새코미꾸리와 얼룩새코미꾸리의 2종 간에는 측사골에 있는 측돌기의 위치와 견갑골의 돌기의 크기를 제외하고는 뚜렷한 차이가 나타나지 않았다. 한편, 그 동안 많은 논란이 있었던 본 속의 분류학적 위치에 대해서는 전두골이 부접형골과 마나지 않고, 현수골에 metapterygold-quadrate fenestra가 존재하는 점에서 미꾸리속보다는 기름종개속 어류와 근연인 것으로 사료된다. The skeletal system of the Korean endemic genus Koreocobitis is described and figured in detail, and discussed with previous reports about two related genera. Misgurnus and Cobitis. Although most skeletal characteristics of Koreocobitis accord with those of the other cobitid fishes, there were differences in the number of hypobranchial and pharyngobranchial bones and in having the fourth cartilaginous basibranchial bearing a thread-like cartilage extending posteriorly. The position of the lateral process on the lateral ethmoid and the size off the process in the scapula were different between the two species K. rotundicaudata and K. naktongensis. On the basis of two characters, frontal not contacting with parasphenoid and presence of metapterygoid-quadrate fenestra, the genus Koreocobitis seems to be closely related to Cobitis rather than to Misgurnus.
Deoxyribonucleoside의 보호와 di-p-Methoxytrityl기의 제거에 대한 Alcohol류의 효과
이상직,송병수,김대연 嶺南大學校附設 基礎科學硏究所 1984 基礎科學硏究 Vol.4 No.-
5'-O-Dimethoxytritylthymidine and N-benzoyl-5'-O-dimethoxytrityldeoxyade-nosine were synthesized from the corresponding deoxynucleosides and some factors influencing their yields were also investigated. To remove the dimethoxytrityl group from 5'-O-Dimethoxytritylthymidine and N-benzoyl-5'-O-dimethoxytrityldeoxyadenosine, ZnBr₂/CH₃NO₂, ZnBr₂/CH₃NO₂in the presence of alcohols, and CH₃COOH/CH₃NO₂systems were employed. The rates of the detritylation as well as the extent of side reaction in these systems were estimated and the effect of alcohols on the reactions was discussed.
Internucleotide Phosphotriester Bond 형성에 따른 Arylsulfonyl azolide계 축합시약의 반응성
이상직,김대연,송병수 嶺南大學校附設 基礎科學硏究所 1985 基礎科學硏究 Vol.5 No.-
Arylsulfonylimidazoles, arylsulfony-1,2,4-triazoles and arylsulfonyl-3-nitro-1,2,4-triazoles were synthesized and employed in the formation of a phosphotriester bond between appropriately protected monodeoxyribonucleotides. New condensing agents, benzenesulfonyl-3-nitro-1,2,4-triazole, and p-toluenesulfonyl-3-nitro-1,2,4-triazole were found to be excellent in the dideoxyribonucleotide synthesis via the phosphotriester method.
이기환,오제직,최석남,박병빈,이태호,김영유 공주대학교 사범대학 과학교육연구소 1998 과학교육연구 Vol.29 No.1
p-type α-SiC(4H, 6H, 15R polytype)를 사용하여 다공질 실리콘(porous silicon; PS)의 제작방법과 유사하게 HF/H₂O/C₂H??OH 용액에서 전기화학적으로 에칭을 하여 광발광 특성을 가지는 다공질 실리콘 카바이드(porous silicon carbide; PSC)를 제작하였다. PSC의 다공질의 분포는 전류밀도가 증가할수록 증가하고 다공질의 크기는 감소하였으며 광발광(photoluminescence; PL) 스펙트럼의 분석을 통해 전극 표면에서의 산화반응은 공급되는 전자의 양과 전류밀도에 의존하며 전류밀도가 증가할수록 전극의 산화반응은 억제된다는 결과를 얻었다. Porous silicon carbide(PSC) having photoluminescence(PL) can be prepared by a technique very similar to that used in porous silicon preparation, by electrochemical etching of crystalline p-type α-SiC(4H, 6H, 15R polytype) in ?? solution. The results show that porous distribution increase with increasing of the current densities while pore size decrease with that. Through the PL spectra analysis anodic oxidation of electrode surface was dependent on the amount of provided electrons and the current densities and inhibited with increasing of the current densities.
The compilation of Inventory of National Biological Resources with 111 Alert Alien Species in Korea
Soen-Yi Kim,Jin-Whoa Yum,Neung-Ho Ahn,Hye-Woo Byun,Mi-Jeong Jeon,Sung-Hee Jung,Hyun-Ki Choi,Youn-Bong Ku,Eun-Joo Woo,Min-Ha Kim,Wonhee Kim,Byung-Jik Kim,Hwa-Jung Kim,Min-Seock Do,Chang-Mu Kim 한국응용곤충학회 2023 한국응용곤충학회 학술대회논문집 Vol.2023 No.04
Byung-Jik Kim,Young-Kyun Chang,Tae-Hyun Kim 한국윤리경영학회 2017 한국윤리경영학회 학술대회 발표논문집 Vol.2017 No.3
Grounded on human resource based view, this study examines how and why corporate social responsibility(CSR) contributes to corporate bottom line by focusing on the mediating role of work engagement of employees and the moderating role of strategic integration between market and non-market (i.e., CSR) strategies. With a3-wave longitudinal survey data of 3, 343 organizational members from 518 branches as well as performance records from one of the largest Korean commercial banks, we found that an employee’swork engagementmediates the CSR-performance relationship, and two market strategies differentially moderate the mediated relationship. Specifically, the customer-oriented strategy strengthens the positive influence of CSR on work engagement and subsequent financial performance of a branch, whereas the competition-oriented strategy makes the positive influence of CSR disappear. Our findings suggest that organizations can maximize financial returns from CSR through engaged employees only when CSR, as a non-market strategy, goes hand in hand with the market strategy.