• 제목/요약/키워드: Migratory

검색결과 352건 처리시간 0.03초

Spatial Pattern Analysis for Distribution of Migratory Insect Pests at Paddy Field in Jeolla-province (전라도 지역 논벼에서 비래해충 개체군 분포의 공간패턴분석)

  • Park, Taechul;Choe, Hojeong;Jeong, Hyoujin;Jang, Hojung;Kim, Kwang Ho;Park, Jung-Joon
    • Korean journal of applied entomology
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    • 제57권4호
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    • pp.361-372
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    • 2018
  • Migratory insect pest populations migrate from the southern China to Korea through jet streams. In Korea, 5 major migratory insect species are important, i.e. Nilaparvata lugens, Sogatella furcifera, Laodelphax striatellus, Cnaphalocrocis medinalis and Mythimma separate, which are damages to the major crops, rice. This study was conducted from late July 2016 to early September 2016 and from July 2017 to August 2017 in rice paddy of Jeolla-province. C. medinalis and M. separata collected using pheromone traps, while N. lugens, S. furcifera and L. striatellus collected using 3 methods (visual surveys, sweeping surveys, sticky traps). SADIE (Spatial Analysis by Distance IndicEs) among geostatistics was used to analyze migratory insect pests. SADIE was used to analyze spatial distribution and index of aggregation $I_a$, index of clustering $V_i$, $V_j$ were used to investigate the spatial distribution. Also, the clustering indices were mapped as red-blue plot. C. medinalis and M. separata showed different distribution based on SADIE spatial aggregation analysis and red-blue plot analysis. Initial spatial distributions of L. striatellus and other planthoppers were differed for sampling location and time.

Lobectomy due to Pulmonary Vein Occlusion after Radiofrequency Ablation for Atrial Fibrillation

  • Papakonstantinou, Nikolaos A.;Zisis, Charalambos;Kouvidou, Charikleia;Stratakos, Grigoris
    • Journal of Chest Surgery
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    • 제51권4호
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    • pp.290-292
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    • 2018
  • Radiofrequency ablation is an effective treatment for atrial fibrillation. Pulmonary vein stenosis/occlusion is one of its rare complications. Herein, the case of a 50-year-old man with hemoptysis and migratory pulmonary infiltrations after transcatheter radiofrequency ablation for atrial fibrillation is presented. Initially, pneumonia, interstitial pulmonary disease, or lung cancer was suspected, but wedge resection revealed hemorrhagic infiltrations. Chest computed tomography pulmonary angiography detected no left superior pulmonary vein due to its total occlusion, and left upper lobectomy was performed. Post-ablation pulmonary vein occlusion must be strongly suspected in cases of migratory pulmonary infiltrations and/or hemoptysis.

An Analysis of the Change of the Plan Composition in High School through the Checking of Present Use of Migratory Class by Level (수준별 이동식 수업에 따른 고등학교의 평면구성 변화에 대한 분석)

  • Rieu, Ho-Seoup;Ha, Seung-Min
    • Journal of the Korean Institute of Educational Facilities
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    • 제16권3호
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    • pp.41-48
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    • 2009
  • The purpose of this research is to find out the problem of plan composition by use the school building. The research was performed through the checking of 13 high schools which were built after 1997 in Busan. Followings are the result of the research. Presently, all the schools are divided classes into different levels and teach students, however, it is only limited to English and Mathematics and being carried on mostly for 1st graders. Moreover, although the plan is composed Department System plan which intended to ues new various learning method, schools have changed their plan into Usual with Variation type which is old educational program and renovated a few classes for certain subjects. Due to above reasons, the new kinds of space for Department System plan is used only as a study room by reform or even not used at all. Therefore, improvement of those problems are significant in schools.

Ecotourism Study on the Chunsuman Bay Birdwatching Festival (생태문화관광 축제연구 : 천수만 철새 축제 사례)

  • Roh Yong-Ho;Jeong Gang-Hoan;Yhang Wii-Joo
    • Journal of Environmental Science International
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    • 제14권3호
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    • pp.259-264
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    • 2005
  • The purposes of this study were to investigate visitors' environmental attitudes of educational tourism, environmental preservation, and regional economic benefits satisfaction through the Chunsuman Bay Birdwatching Festival. The results of this study were as follows: First, the degree of educational satisfaction was high and this festival provided environmental preservation mind for visitors and local residents as well. The festival participants had a positive attitude toward migratory birds. Especially, the residents who had negative perceptions toward migratory birds due to physical harms of agricultural crops was positively changed after visiting this festival. So there should be prepared for more strategic approaches for residents' visiting and participating this birdwatching festival. Second, while the number of tourists was increased, it did not make a practical contribution to residents' income Particularly, farmers' satisfaction was low. So there should be more strategic programs to improve residents' economic rewards for sustainable development.

Migratory Azygos Lobe: A Case Report

  • Min Suk Choi;Eung-Joong Kim
    • Journal of Chest Surgery
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    • 제56권2호
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    • pp.140-142
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    • 2023
  • The azygos vein sometimes merges abnormally across the right upper lobe of the lung and it hangs at the lower edge of a membranous septum, called the meso-azygos. The septum invaginates the lobe and makes a fissure. The smaller medial part of the right upper lobe is called an azygos lobe. A 16-year-old male patient was diagnosed with right-sided pneumothorax, and a closed thoracostomy was done in the emergency room. During elective wedge resection including the bulla, the meso-azygos, abnormal azygos vein, and azygos lobe were detected. We reviewed the computed tomography images and found that the azygos lobe had re-expanded laterally, not medially, to the meso-azygos after the closed thoracostomy in the emergency room. The patient had been diagnosed with left-sided pneumothorax a year ago, and no one noticed the azygos lobe at that time. We report the intraoperative findings and comparative images of a migratory azygos lobe.