• 농약과학회지
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• 제17권2호
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• pp.140-143
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• 2013

톱다리개미허리노린재의 페로몬 성분인 (E)-2-hexenyl (E)-2-hexenoate (1) 과 (E)-2-hexenyl (Z)-3-hexenoate (2)의 합성에 있어 Steglich 에스테르화 반응의 최적 조건을 검토하였다. (E)-2-헥센산 또는 (Z)-3-헥센산에 대하여 1-1.5 당량의 디사이클로카보다이이미드 (DCC), 1.5-2.0 당량의 (E)-2-헥센놀과 0.1 당량의 4-디메틸아미노피리딘(DMAP)과 반응하였을 때, 각각 76-78% 와 87-91%의 수율로 1과 2를 얻었다.

• 한국학교ㆍ지역보건교육학회지
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• 제19권2호
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• pp.77-86
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• 2018

Objectives: This study aimed identify of the level and effect of the e-health literacy and health behavior in health science majors Methods: The data was collected from March 5 to March 15, 2018 for student majoring in health science at a university in the C city. The data were analyzed with the SPSS 21.0. Results: First, the e-health literacy were statistically significant in grades (F=5.769, p=0.001), health interest (F=10.553, p<0.001) and health care time (F=3.841, p=0.023), and health behavior were statistically significant in subjective health condition (F=5.476, p=0.05), health interest (F=16.716, p<0.001), and health care time (F=28.479, p<0.001). Second, the e-health literacy were correlated with grades, health care time, economic level and health interest, and health behavior were related to health care time, e-health literacy, subjective health condition and health interest. Third, health behavior related factors were health care time, e-health literacy, grades, subjective health condition, and health interest. Conclusion: The related knowledge and skills should be applied to basic classes in order to ensure that health science majors care can accurately utilize the information on the e-health.

• Journal of Microbiology and Biotechnology
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• 제18권8호
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• pp.1353-1356
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• 2008

RNase E (Rne) plays a major role in the decay and processing of numerous RNAs in E. coli, and protein inhibitors of RNase E, RraA and RraB, have recently been discovered. Here, we report that coexpression of RraA or RraB reduces the ribonucleolytic activity in rne-deleted E. coli cells overproducing RNase ES, a Streptomyces coelicolor functional ortholog of RNase E, and consequently rescues these cells from growth arrest. These findings suggest that the regulators of ribonuclease activity have a conserved intrinsic property that effectively acts on an RNase E-like enzyme found in a distantly related bacterial species.

• 한국환경교육학회지:환경교육
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• 제8권1호
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• pp.122-137
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• 1995

The Environmental Education(E.E.) is very important field in Elementary and Secondary School. And the first important problem of E.E. in school is no special teacher. This thesis is a study on the system of E.E. major in the graduate school of education. 1. The aims of E.E. major are training of E.E. teacher and developing research of E.E. 2. The curriculum of E.E. major is consisted of E.E. theory and E.E. content. 3. The student of E.E. major is admited a university graduate of social science and natural science department. 4. The professor of E.E. major is organized a specialist of E.E.

• 식물분류학회지
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• 제41권3호
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• pp.259-266
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• 2011

Elsholtzia hallasanensis, E. springia, and E. splendens var. fasciflora (Lamiaceae) were reported recently as new species or new varieties of E. splendens according to their morphological characteristics. To reappraise the taxonomic status of these additional taxa and to determine the relationships between all Korean Elsholtzia taxa except E. saxatilis, which is distributed in North Korea, molecular studies based on the nrDNA (ITS) and cpDNA (rpl16, and trnH-psbA) sequences of seven taxa of Elsholtzia and one outgroup were carried out. The molecular data support that E. angustifolia and E. minima are distinct species from E. splendens and E. ciliata, respectively, because they have several private marker genes and show monophyly. The molecular data also support that E. splendens has a very close taxonomic relationship with both E. hallasanensis and E. springia. We found that E. splendens var. fasciflora, with multiple inflorescence, was based on several private marker genes and on the monophyly of its trees, suggesting that it can be considered as a variety. Elsholtzia springia, with the same sequences and the same morphological characteristics with E. hallasanensis after transplanting, should be treated as a synonym of E. hallasanensis. Moreover, we consider the taxonomic status of E. hallasanensis as E. splendens var. hallasanensis (Y. Lee) N.S. Lee & C.S. Lee, stat. nov.

• 농업과학연구
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• 제30권1호
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• pp.20-30
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• 2003

본 연구는 목재산업의 e-비즈니스 활용실태를 파악하여 목재산업의 e-비즈니스 발전방안을 제시하기 위하여 수행되었다. 한국에 있어 목재산업의 e-비즈니스 활용실태는 고객과의 전자적 연계, 공급업체와의 전자적 연계 등 e-비즈니스 사업 환경은 낮은 실정이다. e-비즈니스의 활용 수준은 사내정보 인프라 구축단계로 아직은 도입단계에 걸쳐 있는 것으로 파악되었다. e-비즈니스 활용시 장애요인은 숙련된 인재 부족, e-비즈니스 사업모델의 불충분, e-비즈니스 운영기술/수단의 부족 등으로 나타났다. 따라서 목재산업에 있어 지속적인 e-비즈니스 활용수준을 발전시키기 위하여 다음과 같은 점을 고려하여야 할 것이다. 1. 목재산업의 e-비즈니스 활용을 증진하기 위하여 가격경쟁력, 품질경쟁력과 시장대응능력이 유지되는 사업모델이 모색되어야 할 것이다. 2. 목재산업의 e-비즈니스 모델을 수립하기 위하여, 제품 표준화 체계, DB구축, 전자 카타로그 제작등 협력업체간 정보 네트워크의 연계가 중요하고, 기업간 아웃소싱 및 타산업과의 제휴를 확대하여 목재산업 경쟁력을 강화시키는 프로그램 개발이 필요하다. 본고에서는 정량적인 자료의 활용에 있어서 다소 부족한 점이 있지만 광의의 목재산업을 주기적으로 조사하여 e-비즈니스 활용 추이를 전망 예측할 수 있는 출발점이 될 수 있다. 향후 연구에 있어 원목생산자, 유통, 합판 보드류, 인테리어재, 악기 가구 등 업종별 e-비즈니스 활용수준을 계량화하고, 업종간 전자적 연계가 가능한 e-비즈니스 활용 모델의 구축과 평가방법 개발이 필요하다. 또한, 국내외 시장 특성과 타 산업과의 연계성을 갖는 글로벌 e-비즈니스 활용 모델을 발굴하고, 소비자 의사를 반영한 e-비즈니스 마케팅기법의 모색이 요구된다.

• BMB Reports
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• 제41권12호
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• pp.852-857
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• 2008

Little attention has been paid to the specificity between E2 and the target protein during ubiquitination, although RING-E3 induces a potential intra-molecular reaction by mediating the direct transfer of ubiquitin from E2 to the target protein. We have constructed artificial E2 fusion proteins in which a target protein (p27) is tethered to one of six E2s via a flexible linker. Interestingly, only three E2s (UbcH5b, hHR6b, and Cdc34) are able to ubiquitinate p27 via an intra-molecular reaction in this system. Although the first ubiquitination of p27 (p27-Ub) by Cdc34 is less efficient than that of UbcH5b and hHR6b, the additional ubiquitin attachment to p27-Ub by Cdc34 is highly efficient. The E2 core of Cdc34 provides specificity to p27, and the residues 184-196 are required for possessive ubiquitination by Cdc34. We demonstrate direct E2 specificity for p27 and also show that differential ubiquitin linkages can be dependent on E2 alone.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 I
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• pp.565-568
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• 2003

This paper presents a method that can be used to reduce the decoding computational complexity in turbo codes. To reduce the decoding complexity we proposed an adaptive sliding window method which control the learning period of Viterbi sliding window method depending on channel signal to interference ratio (SIR). When received signal to interference ratio (SIR) is relatively high, we can reduce the decoding complexity without a noticeable degradation of BER performance at CDMA cellular system with power control error.

• 한국축산식품학회지
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• 제40권4호
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• pp.668-674
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• 2020

Manuka honey (MH) has been shown anti-bacterial activity against several pathogenic bacteria. However, the inhibitory effect of MH on biofilm formation by Escherichia coli O157:H7 has not yet been examined. In this study, MH significantly reduced E. coli O157:H7 biofilm. Moreover, pre- and post-treatment with MH also significantly reduced E. coli O157:H7 biofilm. Cellular metabolic activities exhibited that the viability of E. coli O157:H7 biofilm cells was reduced in the presence of MH. Further, colony forming unit of MH-treated E. coli O157:H7 biofilm was significantly reduced by over 70%. Collectively, this study suggests the potential of anti-biofilm properties of MH which could be applied to control E. coli O157:H7.

• Journal of Information Science Theory and Practice
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• 제1권4호
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• pp.48-66
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• 2013

The aim of this study is to examine the user's online searching behavior in IR interfaces of e-journal database systems. The study is purely based on survey methods and tries to analyse the online searching behavior of respondents of social science disciplines who were doing research in three target central universities of Delhi (i.e. DU, JMI, and JNU). For measuring the responses of the respondents in IR interfaces of e-journal database systems, a total of 396 questionnaires were distributed among the students and out of all, 305 responses were used for the study. The findings of the study reveal that most of the students were not using all the facilities offered in IR interfaces of e-journal database systems for their retrieval process and also encourages menu based searches rather than command based searching.