• Journal of Korean Society of Transportation
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• v.23 no.8 s.86
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• pp.53-66
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• 2005

This paper analyzes the effects of acceleration lane lengths on the traffic characteristics of merging areas. Two merging areas, Suwon IC and Singal JC, which have remarkably different acceleration lane length were selected as field study sites. Traffic data were collected through dividing each merging area into several subsections. Not only conventional flow, speed and density data but also a newly introduced MOE, density variation were used to analyzed the characteristics of merging area. Singal JC which has longer acceleration lane than Suwon IC showed more severe congestion, and the cause of the results was figured out.

• Food Industry And Nutrition
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• v.11 no.3
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• pp.6-11
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• 2006

바이러스성 식중독은 장염을 일으키는 원인 병원체 중 노로바이러스에 의해 흔히 발생하며 이외에도 아스트로바이러스나 로타바이러스에 의한 집단 설사 사례가 국내에서 보고된 바 있다. 노로바이러스는 식중독과 관련하여 특히 오염된 식수와 굴 등 어패류의 생식을 통한 감염 사례가 많이 보고되어 있으나 사람 간 전파도 흔히 일어나는 전염력이 매우 높은 바이러스이다. 국내에서는 1999년 이후 보고가 되고 있으며 최근 집단 급식과 관련된 대형 식중독 사례들이 보고되면서 학교급식이 사회적인 이슈로 대두되고 있다. 2000년 이후 질병관리본부는 바이러스성 설사의 국내 발생현황을 파악하기 위하여 전국의 17개 시도보건환경 연구원과 노로바이러스를 포함한 4종의 바이러스성 장염원인 병원체에 대한 전국적인 실험실 감시체계를 운영한 결과 바이러스성 병원체가 확인된 사례의 약 18%에서 노로바이러스가 검출되었고, 집단설사 사례에서는 대부분 노로바이러스가 원인병원체로 확인되었다. 또한 노로바이러스의 조기 검출을 위해 질병관리본부는 2004년 중 노로바이러스 유전자 검출 kit를 자체적으로 제작하여 이를 전국의 시도 보건환경연구원을 연계한 감시체계에서 적극 활용함으로써 노로바이러스 집단설사사례의 조기 검출이 가능하게 되었고 지역내 노로바이러스 검출율을 높이는데 기여하였다. 국립보건연구원은 2003년과 2006년에 발생한 대규모 노로바이러스 식중독 사례 이외에도 산발적으로 지속적으로 발생하는 사례들을 조기에 탐지하고 국내에서 검출되는 설사바이러스 유전형 분포양상과 새로운 유전자형이나 변이주를 조기에 검출하고자 전국적인 노로바이러스 실험실 감시망을 강화하여 운영하고 있으며, 집단설사 발생시 각 사례의 연관성을 신속하게 분석할 수 있는 실시간 분자역학적 유전자 분석체계를 단계적으로 도입하고 있다. 실험실 감시체계 운영과 함께 집단 식중독 유발 병원체의 효율적인 관리를 위해 질병관리본부는 노로바이러스를 포함한 설사 유발 병원체를 신고대상 병원체로 지정(2006.06.12)하여 병원체 검출시 보고하도록 하고 관련 지침을 마련하였다. 노로바이러스가 지정전염병 병원체로 추가로 지정됨에 따라 집단 사례 및 실험실 감시사업을 통해 검출되는 병원체에 대한 보고가 강화되고 전파 방지와 2차 감염 사례 감소에도 기여할 수 있을 것으로 사료되며 전국의 실험실 감시망을 연결하는 국가 차원의 노로바이러스 실시간 분자역학적 분석체계 도입을 통해 노로바이러스 2차 감염을 줄이고 대규모 집단발병 및 유행의 조기 차단 효과를 가져올 수 있을 것이다.

• (The) Research of the performance art and culture
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• no.32
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• pp.7-30
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• 2016

The inter­relationship of Korea southeast region community related to a mask dramas in depth. The Folk mask dramas are, for traditional community members to live well and enjoy cultural practices in society. Even if a mask drama would be performed in the 21st century, it would be the one of traditional society. It shows the life of traditional society and proposes the issue of traditional society. The thing is handed down well with technology of a mask drama assigned as intangible cultural asset. The Korea southeast region, Kyongsang Provinces, or Yeongnam area has been handed down several kind of mask dramas. These are Byeolsingut Talnori with religious, the Ogwangdae of wandering play team, the Ogwangdae of local residents, and the Dulnorum of local residents. The mask dramas of Korea southeast region are specified as intangible cultural asset, many traditional mask play were restored. The restoring is imitation. These things are difficult to assigned as the intangible cultural asset. But though it is the imitation of the mask dramas, it is culture phenomenon. So we need to make the fostering system.

• Journal of Animal Science and Technology
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• v.51 no.5
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• pp.361-368
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• 2009

This study was carried out to establish the standard karyotype of Jeju horse by G-, C- and AgNOR-banding patterns. Blood samples were collected from 37 Jeju horses and 24 Thoroughbred that had been raised at the National Institute of Subtropical Agriculture in Jeju. The lymphocytes were cultured in vitro and then chromosomes prepared. The diploid chromosome number of Jeju horse is 64, which consists of 31 pairs of autosomes and X, Y sex chromosomes. The Jeju horse has 13 pairs of metacentric/submetacentric and 18 pairs of acrocentric autosomes. The X chromosome is the fifth largest submetacentric, while the Y chromosome is one of the smallest acrocentric chromosomes. The G-banding pattern of Jeju horse chromosomes showed a light band at centromeres in all autosomes, and also exhibited a typical and identical banding pattern in each homologous chromosome. Overall chromosomal morphology and positions of typical landmarks of the Jeju horse were virtually identical to those of International Committee for the Standardization of the Domestic Horse Karyotype. C-bands of Jeju horse chromosomes appeared on centromeres of almost all autosomes, but chromosome 8 showed a heterochromatin heteromorphism. The NORs in Jeju horse chromosomes showed polymorphic patterns within breed, individuals and cells. By the AgNOR staining, the NORs were located at the terminal of p-arm on chromosome 1 and near centromeres on the chromosome 26 and 31. The mean number of NORs per metaphase was 4.68 in Jeju horse.

• Journal of Mushroom
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• v.15 no.2
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• pp.88-93
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• 2017

This study was carried out to establish a cultivation technique for increasing the ${\gamma}$-aminobutyric acid (GABA) content in the fruit body of mushrooms by adding processed by-products. For the oyster mushroom 'Heucktari', addition of green tea powder, sea tangle powder, and green tea dregs resulted in very poor primordia formation, fruit body growth, and increased GABA. However, addition of 10% schizandra berry dregs and 1% rice bran to the basal substrate induced 100% and 10% increases, in GABA content in the fruit bodies compared to the control treatment without by-product, respectively. In addition, fruit body growth and primordia formation were greatly increased by these treatments. Therefore, GABA content was increased when the substrate was prepared by mixing an appropriate amount of schizandra berry dregs and rice bran.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2023.04a
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• pp.9-9
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• 2023

한국 특산 식물인 미선나무 (Abeliophyllum distichum)는 IUCN Red List의 EN (위기종) 등급에 지정되 어 보호받아 왔다. 미선나무는 국내 자생지 6곳을 포함하는 13개의 서식지에서 생육되고 있다고 알려져 있다. 2017년 이후, 국내에서는 지속적인 보전과 관리하에 법정보호종에서 해제되어 멸종위기종 복원 성 공 사례의 귀감이 되었으나 국내를 제외하면 미선나무의 활용은 아직 어려운 현실이다. 미선나무는 1속 1종이지만 종 내에서 다양성이 존재한다. 꽃의 형태적 특징에 따른 다양한 분류가 이루어지며, 옥황1호을 포함한 분홍, 상아, 연녹색, 흰색 등으로 구분된다. 유전체 연구 및 성분 분석을 통해, 각 표현형마다 유전 정보와 유효 성분의 차이가 존재한다는 것이 알려졌다. 활용 가치를 높이려면, 유전적으로 안정되고 표준화가 가능한 원료가 필요하며, 이는 신품종을 이용하거나 새로운 개발이 필요하다는 것을 내포한다. 일반 식품으로의 활용은 어려우나 기능성 화장품의 원료 등으로 활용되고 있으며, 이러한 활용들은 미선나무의 높은 활용 가치를 투영한다. 활용 가치 평가를 위해 수행된 DNA 손상, 멜라닌 생합성, 항염증, 항산화, 항암 억제 등의 연구를 통해 다양한 약리학적 효능을 가진다는 결과들이 도출되었고, 많은 문헌들이 그 근거를 뒷받침한다. 또한, 유효 성분의 합성경로를 재정립하고 RNA 분석을 통해 그 양상을 예측하기 위한 연구가 진행 중에 있다. 미선나무에서 유래한 식물조직 배양체인 callus의 유도 및 배양이 진행되고 있으며, 옥황1호 유래 callus를 활용하여 다양한 연구를 수행하고 있다. 앞서 언급한 미선나무 연구 및 개발에 대한 한계를 파악하고, 천연 식물 자원으로의 미선나무에 대한 지속적인 관심과 지원을 통해 나고야의정서에 대응하는 전략적 접근이 필요하다.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.40 no.2
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• pp.14-23
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• 2022

The purpose of this study is to preserve the sustainable traditional landscape of the "Terraced Paddy Fields of Gacheon Village, Namhae". To this end, the changes in the traditional landscape and its factors were analyzed, and a conservation plan was sought to coexist with local communities. The results are as follows; First, the traditional scenery of "Terraced Paddy Fields of Gacheon Village, Namhae" is characterized by stonework built on a steep topography to secure cultivated land and narrow rice fields. To this end, local communities have maintained the traditional landscape through their long-established traditional knowledge, but after the designation of cultural heritage, the unique landscape of the "Terraced Paddy Fields of Gacheon Village, Namhae" changed as standardized stone construction methods were applied. Recently, the Cultural Heritage Administration recognized these problems and returned to the direct repair system of local communities, so cultivated land is regaining the scenery of the past. Second, the factors that changed the traditional landscape of the "Terraced Paddy Fields of Gacheon Village, Namhae" were largely found to be a decrease in voluntary conservation consciousness, a limited management range of preservation society, a decrease in agricultural population, and a lack of skilled traditional skills. After the designation of cultural heritage, expectations for policy support by the state or local governments accelerated the damage as existing farmland was neglected, and the lack of agricultural population also resulted in the same result. The preservation society is making efforts to preserve it, but the phenomenon of excessive and insufficient management personnel is intensifying. Conflicts between residents due to profit polarization have spread to the problem of escalating. In addition, there are concerns about the loss of traditional knowledge such as step farming technology and stone construction functions. Third, to suggest a win-win plan with local communities for preserving the traditional landscape, it is necessary to seek the ways to expand farming participants and generate profits through the placement of professional careers and public-private linkage system. In addition, it is desirable to improve the profit distribution system through the preservation society to strengthen the management authority and induce participation. And a support system is required for education on the transmission of terraced farming technology and stone construction functions.

• Microbiology and Biotechnology Letters
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• v.44 no.2
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• pp.124-129
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• 2016

The extraction and purification of the anti-hyperglycemic α-glucosidase inhibitor from an edible mushroom, Pleurotus cornucopiae, were investigated. The inhibitor was maximally extracted when the P. cornucopiae fruiting body was treated with distilled water at 30℃ for 12 h. Purification was achieved using Sephadex G-100 and G-50 filtration chromatography, pepsin hydrolysis, and reverse-phase HPLC. The compound’s solid yield and inhibitory activity were 12.2% and 9.10 mg/ml of IC₅₀, respectively. The purified inhibitor contained two hexapeptides with Thr-Ile-Ala-Phe-Ile-Asp (A) and Tyr-Tyr-Ala-Ile-Gly-Asp (B) sequences and molecular weights of 678.79 Da (A) and 643.7 Da (B). The purified inhibitor showed a mixed inhibition pattern to α-glucosidase and a dose-dependent anti-hyperglycemic effect in a streptozotocininduced diabetic Sprague-Dawley rat model, exhibited by decreased blood glucose levels at doses of 50 and 300 mg/kg.

• Research in Plant Disease
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• v.23 no.1
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• pp.75-81
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• 2017

In May 2016, 24 peach samples showing abnormal and virus like symptoms were collected in one of major peach producing area, Yeongcheon-si, Gyeongsangbuk-do, Korea. We performed RT-PCR diagnosis for confirmation of viral infection. The diagnostic targets are 17 species of viruses and viroids that quarantine and high risk pathogens when it occur. As a results, seven species of viruses and viroids, including an unreported (Apricot pseudo-chlorotic leaf spot virus, APCLSV) and a quarantine (Peach latent mosaic viroid, PLMVd) species in Korea, were detected. For the sequence analysis of unreported virus, APCLSV, the sequence of coat protein gene were amplified and cloned. The sequence showed 97% nucleotide identity with other APCLSV isolates and compared with other seven species of reported Trichoviruses. This virus was classified as APCLSV based on the sequence and phylogenetic analysis. This isolate was named Yeongcheon. As patterns of APCLSV occurrence, all samples that APCLSV detected were co-infected with Apple chlorotic leaf spot virus (ACLSV). As properties of ACLSV, APCLSV has high possibility of wide spread disease in fruit tree farms in Korea. Therefore, it is necessary to do related researches, such as infection route and influence of disease in commercial orchards.

• The Journal of Korean Society for Radiation Therapy
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• v.24 no.2
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• pp.61-66
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• 2012

Purpose: The purpose of this study is to compare plans prescribed to point A with these prescribed to point H recommended by ABS (American Brachytherapy Society) in high dose rate intracavitary brachytherapy for cervical carcinoma. Materials and Methods: This study selected 103 patients who received HDR (High Dose Rate) brachytherapy using tandem and ovoids from March 2010 to January 2012. Point A, bladder point, and rectal point conform with Manchester System. Point H conforms with ABS recommendation. Also Sigmoid colon point, and vagina point were established arbitrarily. We examined distance between point A and point H. The percent dose at point A was calculated when 100% dose was prescribed to point H. Additionally, the percent dose at each reference points when dose is prescribed to point H and point A were calculated. Results: The relative dose at point A was lower when point H was located inferior to point A. The relative doses at bladder, rectal, sigmoid colon, and vagina points were higher when point H was located superior to point A, and lower when point H was located inferior to point A. Conclusion: This study found out that as point H got located much superior to point A, the absorbed dose of surrounding normal organs became higher, and as point H got located much inferior to point A, the absorbed dose of surrounding normal organs became lower. This differences dose not seem to affect the treatment. However, we suggest this new point is worth being considered for the treatment of HDR if dose distribution and absorbed dose at normal organs have large differences between prescribed to point A and H.