A5010212441- Ecology and Conservation Studies
- Agriculture, Soil, Plant Science
- Allergic Rhinitis and Sensitization
- Organ Transplantation Techniques and Outcomes
- Indoor Air Quality and Microbial Exposure
- Lichen and fungal ecology
- Transplantation: Methods and Outcomes
- Geology and Paleoclimatology Research
- Forest ecology and management
- Renal Transplantation Outcomes and Treatments
- Diverse Approaches in Healthcare and Education Studies
- Plant Ecology and Soil Science
- Organ Donation and Transplantation
- Contact Dermatitis and Allergies
- Clinical Nutrition and Gastroenterology
- Plant biochemistry and biosynthesis
- Gastrointestinal Tumor Research and Treatment
- Marine Bivalve and Aquaculture Studies
- Intravenous Infusion Technology and Safety
- Ecology and Vegetation Dynamics Studies
- Organ and Tissue Transplantation Research
- Air Quality and Health Impacts
- Tree-ring climate responses
- Food Allergy and Anaphylaxis Research
- Phosphorus and nutrient management
The Ohio State University Wexner Medical Center
2024
University of Ulsan
2009-2017
Ulsan College
2009-2014
Asan Medical Center
2001-2013
Presbyterian Medical Center
2004
Cornell University
2001
Endoscopic submucosal dissection (ESD) is an important therapeutic option for gastric adenoma and early cancer (EGC). However, ESD technically difficult when lesions are located in the pyloric area. Our aim was to introduce transnasal endoscope-assisted method, which provides excellent cutting-line visualization through control of traction. A total eight patients with or EGC area were consecutively enrolled. primary operating endoscope used perform marking, incision, dissection, hemostasis,...
한반도 서해안 중부 지역의 식생 변천사 규명을 위해 천리포 수목원 퇴적물의 방사성 탄소 연대 측정과 화분 분석을 실시하였다. 그 결과 약9,300 yr BP 이후 현재까지 변천사를 규명하였다. 분석 결과를 통하여 바닥층부터 표층까지 4개의 주요한 화분대가 설정되었다. : Zone CHL-I, Quercus stage(ca. 9,300<TEX>$\sim$</TEX>6,200 BP); zone CHL- II, Quercus-Pinus 6,200<TEX>$\sim$</TEX>4,600 y BP): CHL-III, Pinus-Quercus 4,600<TEX>$\sim$</TEX>1,160 CHL-IV, Pinus 1,160 BP-present). 홀로세초기 약9,000<TEX>$\sim$</TEX>B,500 yrBP동안 한랭한 기후의 영향으로 냉온대 북부/고산지형 침엽-낙엽혼합림의 단편을 확인할 수 있었다. 약 8,500<TEX>$\sim$</TEX>6,000 동안 Quercus를...
한반도 남서부 저지대의 식생변천사를 밝히기 위하여 영산강유역 범람원 퇴적물의 화분분석과 AMS 측정을 실시하였다. 그 결과 BS 1. 12,222cal BC<TEX>$\sim$</TEX>9,160cal BC: 냉온대 북부/고산지 침엽 활엽혼합림, 2. 9,160cal BC<TEX>$\sim$</TEX>4,210cal 중부/산지 낙엽활엽수림, 3. 4,210cal BC<TEX>$\sim$</TEX>125cal 남부/저산지 4. 125cal BC<TEX>$\sim$</TEX>현재: 난온대/냉온대 침엽수림의 식생변천과정을 밝힐 수 있었다. 소나무림의 증가는 BC부터 이며 벼농사 개시 시기는 2,120cal 집약적으로 이루어지기 시작하였음을 밝혔다. 또한 후빙기 후기 급격한 농경의 집약화와 관계가 있음을 알 This study presents the Mid-Lateglacial vegetation history of southwestern Korea. From result...
Background/Aims: Pollinosis is an increasing problem, with allergenic pollen causing rhinitis, asthma, and other allergic diseases.This study examined the patterns of sensitization to inhalant allergens in patients respiratory allergies analyzed regional concentrations Ulsan, Korea.Methods: A skin prick test was performed 21 common allergens, including 18 types pollen, 634 from January 2008 through December 2010.Airborne collected daily three different stations Ulsan using a Durham...
중간습원 무제치 습원의 현존식생도와 오리나무 개체군의 공간적 분포양식을 규명하였으며, 그 보존을 위한 생태학적 정보를 발굴하였다. 자늪과 웅늪의 1:100 실측지형도 상에서 총3,036개의 격자(5m <TEX>$\times$</TEX> 5m)를 이용하여 1996년 상세 현장조사가 이루어졌다. 현존식생도는 쇠털골형, 진퍼리새형, 오리나무형, 억새형, 삼림형 그리고 개방나지 등의 6 가지 식생범례로 제작되었으며, 습원 고유의 진퍼리새형과 비고유의 억새형이 가장 넓은 면적을 차지하고 있었다. 1,491개체에 대한 매목조사와 티센망도(thiessen polygons) 분석으로부터 발달은 훼손(토사 및 산화 등)으로부터 매우 급속히 진행되고 있는 것으로 나타났다. 웅늪은 자늪에 비하여 보다 온전한 구조로 유지되고 중간습원으로 평가되었으나, 웅늪 모두 다년생 목본 식물종에 의한 산지 참나무림과 우점의 습생림의 발달에 진퍼리새군강으로 대표되는 중간습원의 입지환경 변화와 소멸이 급격히 결국...
For the reconstruction of past vegetational changes in Jeju Island, Korea, pollen analysis and radiocarbon dating on sediments obtained from Mulyeongari fen were carried out. By results, around ca. 3,300 cal. yr BP to present can be interpreted reconstructed. The record was divided into two local assemblage zones three sub-pollen zones. Zone I (Quercus-Carpinus-Herbs Zone) characterized by predominance Quercus(30~63%), Carpinus(9~35%) herbs(40~424%). II high occurrence ratio tree layer...
:The volatile components from the fresh and dry leaves of three Pinus species (Pinus densiflora, P. thunbergii rigida) was analyzed by headspace-gas chromatography-mass spectrometry. A total eighty five compounds, representing 99.89 %, 99.61 99.97 99.86 100 % 99.69 were identified. The major constituents common plants α-terpinolene (37.15 36.59 26.15 28.6 29.41 34.76 %), 2-β-pinene (10.36 9.52 42.15 41.89 25.53 32.75 α-pinene (3.19 4.94 0.44 0.83 0.51 0.63 δ-4-carene (2.10 1.40 0.97 0.78...
This study attempted to determine important meteorological parameters related airborne pollen concentrations in urban areas. Hourly measurement data were prepared from a regular sampling with volumetric Burkard spore trap at site the Ulsan city, during spring season (March~May) of 2011. Results showed that daily mean and maximum for total counts statistically significantly correlated both air temperature wind speed; concentration was most highly (r=0.567, p<0.001). It also identified has...
Asan Medical Center, University of Ulsan, Dept Anaesthesiology & Pain Medicine, Seoul, Korea, Republic
Background: The recent increase in prevalence of allergic diseases and climate change stimulate the interest pollen. Numerical modeling techniques can enhance our understanding about spatiotemporal pollen patterns help to achieve a better management pollen-related diseases. Aims: This study aims simulate oak distributions multiscale domain using new model system developed by modifying existing emission air quality models evaluate modeled concentrations for urban scale prediction with...
The purpose of this study is to compare the relative growth annual ring width red pine(Pinus densiflora), black thunbergii) and pitch rigida) by means multiple regression method according Graybill hypothesis. obtained results are as follows. 1. changes rainfall have affected tree during periods 1975 through 1978. 2. Among these pine trees, was mostly influenced environmental factors. 3. sensitively responded air temperature. 4. heavy metals analyzed, concentrations(ppm) Lead(Pb) Copper(Cu)...