• Animal cells and systems
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• 제5권3호
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• pp.243-246
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• 2001

Human endoqenous retroviral long terminal repeats (LTRs) have been found to be coexpressed with sequences of genes closely located nearby. It has been suggested that the LTR elements have contributed to structural changes or genetic variations of human genome connected to various diseases and evolution. Using cDNA library derived from placenta tissue, we performed PCR amplification and identified five new HERV-W LTR elements. Those LTR elements showed a high degree of sequence similarity (98-99%) with HERV-W LTR (AF072500). A phylogenetic tree obtained by the neighbor-joining method revealed that HERV-W LTR elements could be mainly divided into two groups through evolutionary divergence. Five new HERV-W LTR elements (pla-1, 4, 5, 6, 7) belonged to the group I with AX000960, AF072504, and AF072506 from GenBank database. The data suggest that several copy numbers of the HERV-W LTR elements are transcribed in placenta and may contribute to the understanding of biological function such as human placental morphogenesis.

• 대한한의학원전학회지
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• 제28권4호
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• pp.193-212
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• 2015

Objectives : The purpose of this study is to find the differences of the viewpoints about medicine between Korean and Japanese doctors through analysing the contents of the medical conversation records from the visits of Joseontongshinsa. Methods : The conversations were classified according to the topics and analysed with emphasis on the subject of medical classics. Results : Japanese doctors were skeptical about the application of Huangdineijing(黃帝內經) and the theory of Five Circulation and Six Qi(五運六氣) to clinical treatment while they respected Shanghanlun(傷寒論). They were interested in the bibliography of medical classics, and considered it was important to study the original texts rather than the new editions. The doctors of Joseon valued Huangdineijing highly and accepted the theory of Five Circulation and Six Qi. They mainly used the treatments in Yixuezhengzhuan(醫學正傳), Yixuerumen(醫學入門), Shoushibaoyuan(壽世保元) as therapeutic methods. Conclusions : The conversation records reflect the trend of Korean Medicine in the Joseon Dynasty that Huangdineijing had been mainly studied and the Jin-Yuan(金元) Medicine had been accepted, and the trend of Japanese Medicine in the mid-Edo period that Koho school(古方派) had predominated.

• 한국유체기계학회 논문집
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• 제20권1호
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• pp.53-58
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• 2017

This paper describes liquidity evaluation on the horizontal branch pipe connected to a food waste disposer and performance of five disposers marketed. Experimental apparatus for analyzing the five disposers has been introduced to measure vibration, sound level and power consumption of the disposers. Simulator for analyzing the required water velocity to avoid waste jam inside the pipe connected to a food waste disposer has been designed and constructed. The simulator can control some experimental parameters: pipe slope, disposer supply water quantity, food waste materials and operation time of a disposer. Throughout the experimental measurements of the disposers marketed, it is found that the time need to crash food waste is about 20 seconds on the average. At the same flow condition, increase rate of internal water velocity is accelerated as the pipe slope increases. The water velocity inside the pipe having 50 A and slope of 1/50 is 0.26 m/s when the water flowrate to supply the disposer is 16 l pm. Considering the specific gravity and adhesion property of food waste, water velocity of the horizontal branch pipe connected to a food waste disposer need to excess 0.26 m/s at least to avoid the waste blockage inside the pipe.

• 한국산림과학회지
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• 제80권1호
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• pp.97-102
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• 1991

포플러류의 식물체(植物體)와 그 식물체(植物體)에서 분리(分離)한 미토콘드라아를 동위효소(同位酵素) 분석(分析)하여, 각 동위효소(同位酵素)의 세포내(細胞內) 위치(位置)를 규명(糾明)하였다. 분석(分析)한 동위효소(同位酵素)는 ADH, 6-PGD, MDH, PGI와 Diaphorase였다. ADH는 세포질(細胞質)에 있으며, 핵내(核內)에 있는 한개의 유전자좌(遺傳子座)에 의(依)해 지배(支配)되는 것으로 나타났고, 6-PGD는 mitochondria에 있는 것으로 나타났다. MDH는 세포질(細胞質)에 3개의 band, mitochondria에 4개의 band가 있는 것으로 나타났다. PGI는 세포질(細胞質)에 3개의 band가 있는 듯하며, Diaphorase는 mitochondria에 1개의 band, 세포질(細胞質)에 2개의 band가 있는 것으로 나타났다. 세포질(細胞質)에 있는 두개의 band는 핵내(核內)에 있는 1개의 유전자좌(遺傳子座)에 있는 유전자(遺傳子)에 의(依)해 지배(支配)되는 것으로 판단되었다.

• 수산해양교육연구
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• 제28권4호
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• pp.925-935
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• 2016

It is provided that seafarers qualified in accordance with STCW(International Convention on Standards of Training Certification and Watch-keeping for Seafarers) convention and code in safety training shall be required, every five years, to provide evidence of having maintained the required standard of competence, to undertake the tasks, duties and responsibilities listed in Chapter VI, section A-VI/1 of the STCW Code A. Every party to the STCW Convention has amended the relevant national regulations according to the above international convention and code. These amended Seaman's Act require the updating safety training which is only five years valid for existing seafarers serving onboard ship on international voyage. And above specified existing seafarers must, as of the 1st January 2017, have documentary evidence of either having completed the training course or updated their training within the last 5 years. In relation to the above international trend, the Korean Ministry of Oceans and Fisheries also has completed an amendment to its Seaman's Act. But, the Korean Seaman's Act has a supplementary provision to exempt the seafarers who have completed STCW advanced safety training from basic safety training. The purpose of this study is to define the problems of above mentioned exemption provisions and to make better policies for improvement. In order to complete the purpose, the research team has conducted an in-depth survey of various foreign cases on STCW safety training. Moreover, the team has suggested an improvement scheme in consonance with Korean shipping industry and society through out this report.

• 대한화학회지
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• 제60권1호
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• pp.39-47
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• 2016

이 연구의 목적은 논의기반 탐구 활동에서 협상이 중학생의 주장과 증거 생성 능력에 미치는 영향을 알아보기 위한 것으로 논의기반 탐구 활동에서 학생들이 작성한 주장과 증거의 수준을 분석하였다. 이 연구는 남녀공학 중학교 1학년 4개 학급 학생(126명)을 대상으로 1년에 걸쳐 5개의 활동을 적용하였다. 활동을 분석하기 위한 평가틀을 개발하여 주장과 증거를 분석하였으며 주장과 증거의 생성 과정을 알아보고자 활동 후에 학생 인터뷰를 실시하여 분석하였다. 연구 결과는 논의기반 탐구 활동에서 학생들이 제시한 주장과 증거는 개별 활동에서 조 활동으로 진행됨에 따라 주장과 증거의 수준이 높아졌고, 활동이 거듭됨에 따라 전반적으로 향상되는 경향을 나타냈다. 이는 논의기반 탐구 활동을 통하여 학생들이 내적 및 외적 협상을 경험하면서 수준 높은 주장 및 증거를 형성하게 된 것임을 보여준다.

• 대한지역사회작업치료학회지
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• 제3권1호
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• pp.43-53
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• 2013

목적 : 본 연구에서는 소뇌 실조증 환자에게 시각되먹임 프로그램 훈련을 적용 후 균형과 일상생활수행에 어떠한 변화를 나타내는지 확인해 보고자 한다. 연구방법 : 대전 모 재활병원에서 소뇌 실조증으로 진단받고 입원 중인 대상자 1명을 대상으로 주 5회기씩 총 2주간에 걸쳐 중재를 시행하였고, 사후 2주를 포함하여 총 4주간 실시하였다. 중재 전 후, 사후 균형의 변화를 확인하기 위하여 BIORescue 프로그램을 활용하여 안정성의 한계(Limit of stability; LOS)와 롬버그 검사를 시행하였고, 다른 균형평가로는 버그 균형척도를 시행하였다. 일상생활수행에 미치는 영향을 알아보기 위하여 COPM을 실시하여 분석하였다. 결과 : 소뇌 실조증 환자에게 안정성의 한계와 롬버그 검사, 버그 균형척도에서 중재 후 변화를 확인하였고, 유지가 되는 것을 확인할 수 있었다. 일상생활수행에서도 목욕하기, 이동하기, 교통수단의 이용, 세탁하기, 모임활동 5개 영역 모두 수행도와 만족도가 향상 되었다. 결론 : 소뇌 실조증 환자에게 균형향상을 위하여 시각되먹임 프로그램이 유용하게 적용되어질 수 있을 것으로 보여 진다.

• 한국환경보건학회지
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• 제40권5호
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• pp.425-434
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• 2014

Objectives: The purpose of this study is to introduce the establishment process and results of the Seoul Metropolitan Government's road map on environmental health policy. Methods: The process consisted of expert group meetings, civic participation, research, and questionnaire survey for priority environmental health policy agenda items in Seoul. Results: The announced vision for the environmental health policy was "a healthy environment, safety in Seoul". This policy was established in order to define environment health policy initiatives for a period of five years with an aim to protect Seoul citizens' health from hazardous environmental factors. The resulting Seoul environmental health policy consisted of four areas and 16 key agenda items. The four areas were "Protection for children against hazardous materials", "Enhancement of health and safety of all", "Carcinogen-free and endocrine-disrupting chemical-free Seoul (reducing environmental exposure to hazardous materials), and "Establish the foundation of environmental health policy". Sixteen key agenda items include the enhancement of management of spaces for children, certification of environmental health status at schools, establishment of a unit responsible for the environmental health of children, strengthening environmental health management for susceptible populations (children, the aged, and the socioeconomically vulnerable), management of hazardous materials, physical hazardous factors (noise, radiation, etc.), indoor air quality, and the enhancement of monitoring, research, and regulation of environment health. Conclusion: The Seoul Metropolitan Government established an environmental health policy road map for a five-year period (2013-2017). To implement this environmental health policy, budget allocation, and detailed execution plans are required.

• The Plant Pathology Journal
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• 제31권4호
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• pp.388-401
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• 2015

Sweet potatoes (Ipomea batatas L.) are grown extensively, in tropical and temperate regions, and are important food crops worldwide. In Korea, potyviruses, including Sweet potato feathery mottle virus (SPFMV), Sweet potato virus C (SPVC), Sweet potato virus G (SPVG), Sweet potato virus 2 (SPV2), and Sweet potato latent virus (SPLV), have been detected in sweet potato fields at a high (~95%) incidence. In the present work, complete genome sequences of 18 isolates, representing the five potyviruses mentioned above, were compared with previously reported genome sequences. The complete genomes consisted of 10,081 to 10,830 nucleotides, excluding the poly-A tails. Their genomic organizations were typical of the Potyvirus genus, including one target open reading frame coding for a putative polyprotein. Based on phylogenetic analyses and sequence comparisons, the Korean SPFMV isolates belonged to the strains RC and O with >98% nucleotide sequence identity. Korean SPVC isolates had 99% identity to the Japanese isolate SPVC-Bungo and 70% identity to the SPFMV isolates. The Korean SPVG isolates showed 99% identity to the three previously reported SPVG isolates. Korean SPV2 isolates had 97% identity to the SPV2 GWB-2 isolate from the USA. Korean SPLV isolates had a relatively low (88%) nucleotide sequence identity with the Taiwanese SPLV-TW isolates, and they were phylogenetically distantly related to SPFMV isolates. Recombination analysis revealed that possible recombination events occurred in the P1, HC-Pro and NIa-NIb regions of SPFMV and SPLV isolates and these regions were identified as hotspots for recombination in the sweet potato potyviruses.

• 품질경영학회지
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• 제44권1호
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• pp.153-166
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• 2016

Purpose: Government quality assurance (QA) activities in Korea, which is carried out by the Defense Agency for Technology and Quality, is not effective due to 1) the obscureness of the QA implementation method, 2) the gap between QA activities of provisions and those conducted in the fields, and 3) the variation in subjective judgement among the QA personnel. The purpose of this paper is to propose some suggestions to enhance the effectiveness of government QA activities for military supplies in the production stage. Methods: QA activities for military supplies are investigated and problematic aspects are deduced for the production stage. To secure the effectiveness of the QA activities, Defense Contract Management Agency of the United Sates is benchmarked and five improvement methods are presented. Results: Five improvement aspects are 1) reflecting special terms and conditions of government mandatory inspection in contract, 2) classifying QA personnel, 3) making use of data collection and analysis template compulsory, 4) providing checklist for process review, and 5) establishing guidelines for sampling plans for product examination. Conclusion: Suggestions of this paper can lead to consistency and balance in government QA activities, reducing military suppliers' complaints and enhancing the effectiveness of QA effort, and ultimately contributing to the quality improvement of military supplies.