태안해안국립공원 학암포 지역의 조류 현황

강화연(Hwa-Yeon Kang),서슬기(Seul-Gi Seo),박세영(Se-Yeong Park),이지용(Ji-Yong Lee),권영수(Young-Soo Kwon) 국립공원연구원 2015 국립공원연구지 Vol.6 No.4

서해안 육상지역을 통과하는 조류의 이동생태를 파악하기 위해, 2014년 7월부터 2015년 6월까지 태안해안국립공원 학암포 지역의 조류상을 조사하였다. 조사 결과 관찰된 조류는 총 14목 30과 88종 23,230개체이며, 평균 조사일당 159.7개체가 관찰되었다. 전체 우점종은 괭이갈매기 Larus crassirostris 21.1%, 되새 Fringilla montifringilla 18.5%, 박새 Parus major 12.7%, 붉은머리오목눈이 Paradoxornis webbianus 8.2%, 노랑턱멧새 Emberiza elegans 5.8% 순이었다. 이동시기인 5월과 10월에는 각각 56종, 조사일당 평균 310.5개체로 가장 많은 종과 개체수가 기록되었다. 종과 개체수가 가장 적은 시기는 여름철인 8월로, 기록된 종 수는 24종이며 조사일당 평균 95개체가 관찰되었다. 종풍부도(R ) 지수는 가장 많은 종이 관찰된 5월에 가장 높았으나, 종다양도(H )와 종균등도(E )는 오히려 이동시기에 낮은 편으로 나타났으며, 이는 일부 상위 우점종의 개체수가 월등히 증가했기 때문인 것으로 판단된다. 환경부, 문화재청, IUCN 등이 지정한 멸종위기 및 법정보호종은 총 9종이 관찰되었다. From July 2014 to Jun 2015, bird survey was conducted in Hakampo, Taeanhaean National Park. A total of 23,230 and 159.7 per day of birds representing 14 orders, 30 families, 88 species were observed. The most abundant species were the Black-tailed Gull Larus crassirostris (21.1%), the Brambling Fringilla montifringilla (18.5%), the Great Tit Parus major (12.7%), the Vinous-throated Parrotbill Paradoxornis webbianus (8.2%), Yellow-throated Bunting Emberiza elegans (5.8%). The number of species and individual was the highest in May and October, respectively, as 56 species and 310.5 individual per day were recorded. According to Korean Ministry of Environment, Cultural Herigage Adinistration of Korea and IUCN Red List, a total of 9 protected species were recorded during the survey.

수도관의 생물막 형성에 미치는 잔류염소와 파이프 재질의 영향

박세근,박재우,성권식,최성찬,김영관 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

This laboratory study examined the impact of free chlorine residual and pipe material on the formation of biofilm in drinking water distribution pipe surfaces. Result of heterotrophic plate counts(HPC) of the biofilm in the tap water- supplied reactor averaged 2.17×105CFU/cm2 on PVC and 2.43×105CFU/cm2 on STS 316, respectively. HPCs on the surface exposed to the tap water containing 0.2mg/L of free chlorinne residual averaged 4.24×104CFU/cm2 on PVC and 6.54×104CFU/cm2 on STS 316, respectively Average of HPC/Total direct counts in the tap water-supplied reactor ranged from 1.08%(PVC) to 1.26%(STS 316) and from 0.38%(PVC) to 0.65%(STS 316) in the reactor supplemented with disinfectant, resfectively. No correlation was observed between disinfectant addition and biofilm density. With regard to the biofilm formation, little difference existed between PVC and STS 316. Yellow and red pigmented bacteria were the dominant expressions in bulk fluid, whereas non-pigmented bacteria were found dominant in the biofilm. Pink/red pigmented bacteria were found to be facultative anaerobic, while yellow pigmented bacteria and non-pigmented bacteria were found to be obligate aerobic.

Phanerochaete chrysosporium의 액체 배양 및 Lignin Peroxidase 생산

박세근,정명선,김영관 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A

This study characterizes the growth of white rot fungi Phanerochaete chrysosporium IFO 31249 and lignin peroxidase(LiP) activity in different submerged culture media. P. chrysosporium was grown in the form of pellet of various sizes from a spore inoculum under shaking liquid culture condition. While the growth of mycelia was higher under the nitrogen-sufficient culture than under the nitrogen-limited culture, ligninase activity was relatively lower. The lignin peroxidase appeared in nitrogen-limited culture and was suppressed by excess nitrogen. High level(40U/l) of lignin peroxidase activity was obtained in the growth medium containing 1.5mM veratryl alcohol, a secondary metabolite of P. chrysosporium. Lignin peroxidase production was not observed under conditions of nitrogen sufficiency or in balanced media, suggesting that control parameters could increase the activity by manipulating the secondary metabolism.

소나무(Pinus densiflora) 목질을 이용한 수용액 중의 Cu(II)흡착

김하나,박세근,양경민,김영관 강원대학교 산업기술연구소 2007 産業技術硏究 Vol.27 No.A

Milled Korean pine (Pinus densiflora) wood was used to evaluate its adsorption capacity of Cu(Ⅱ) ions from aqueous solution by running a series of batch experiments. Prior to the tests, the milled woods were pretreated with 1N NaOH, 1N HNO_(3), and distilled water, respectively, to examine the effect of pretreatment. Within the tested pH range between 3 and 6, copper adsorption efficiency of NaOH-treated wood(96~99%) was superior to the HNO_(3)-treated wood(19~31%) and distilled water-treated wood(18~35%). The efficiency of copper removal by wood enhanced with increasing solution pH and reached a maximum copper ion uptake at pH 5~6. Adsorption behavior of copper onto both raw and HNO_(3)-treated woods was mainly attributed to interaction with carboxylic acid group. For NaOH-treated wood, carboxylate ion produced by hydrolysis or saponification was a major functional group responsible for Cu sorption. NaOH treatment of wood changed the ester and carboxylic acid groups into carboxylate group, whereas HNO_(3) treatment did not affect the production of functional groups which could bind copper. A pseudo second-order kinetic model fitted well for the sorption of copper ion onto NaOH-treated wood. A batch isotherm test using NaOH-treated wood showed that equilibrium sorption data were better represented by the Langmuir model than the Freundlich model.

볼링선수의 체격·체조성·운동능력과 경기력 비교

최민동,박세환,이영춘,박일규 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

1. Comparison between man and woman bowling player's bodyshape, motor ability, body composition and game score. 1) Generally, man's physique was better than woman's. 2) Man's grip strength, back strength, vertical jump, standing long jump, game score are better than woman's. 3) Woman has higher percent body fat, man has higher percent of total body water and lean body mass. 2. Comparison between man and woman bowling player's bodyshape, motor ability, body composition and game score from their difference of age. 1) Comparison of man's bodyshape has shown this result that 19years old bowling player had better ability of upper limb length and lower length than 17, 18 years. 2) Comparison of man's motor ability have shown this result that 17, 18, 19 years old player have the highest grip strength and motor ability in regular sequence,17 years old player has the best ability at zigzag run, 18 years old player has best ability at twist and touch. 3) Comparison of Woman's motor ability has shown this result that in order to 17, 18, 19 years old player has highest grip strength, back strength vertical jump, standing long jump, sit-ups, block transfer. 4) Comparison of capacity of a game score has shown this result that man and woman player who are in 17, 18, 19 years old have the highest ability in regular sequence.

Host immune response index in gastric cancer identified by comprehensive analyses of tumor immunity

Park, Charny,Cho, Junhun,Lee, Jeeyun,Kang, So Young,An, Ji Yeong,Choi, Min Gew,Lee, Jun Ho,Sohn, Tae Sung,Bae, Jae Moon,Kim, Sung,Kim, Seung Tae,Park, Se Hoon,Park, Joon Oh,Kang, Won Ki,Sohn, Insuk,Ju Informa UK (Taylor Francis) 2017 Oncoimmunology Vol.6 No.11

<P>Tumor infiltrating lymphocytes (TIL) in Epstein-Barr virus (EBV)-associated/microsatellite-unstable (MSI) gastric carcinomas (GC) constitute immune-active principal cellular components of tumor microenvironment and contribute to better prognosis. With the remarkable success of cancer immunotherapies, there is an urgent need for a comprehensive understanding of tumor-immune interactions in patients with GC in the context of host immune response. To identify GC subtype-specific immune response gene set, we tested differentially expressed genes for MSI and EBV+ GC subtypes in randomly selected test set (n = 278) in merged ACRG-SMC microarray and TCGA RNA sequencing data set. We identified Host ImmunE Response index (HIERI) consisting of 29 immune genes classifying GC patients into robust 3 groups with prognostic significance. Immune-high cluster 1 was enriched with PD-L1(High)/EBV+/MSI/TILHigh with the best clinical outcome while immune-low cluster 3 displayed worst outcome and exemplified with PD-L1(Low)/EBV-/MSS. The results were validated in the same cohort (n = 279) and independent cohort (n = 181) with RNA from formalin-fixed paraffin-embedded (FFPE) tissue. Unexpectedly, nearly half of GC in cluster 1 were EBV-/MSS and 10% of cluster 3 GC were EBV+/MSI GC patients, suggesting that in addition to EBV+/MSI GC subtypes, EBV-/MSS subtype also constitutes almost half of high immune cluster and would be a good candidate for immune checkpoint inhibitor therapy. In contrary, almost 10% of EBV+/MSI GC patients may not respond to immune checkpoint inhibitor therapy. Thus, our HIERI gene signature demonstrates the potential to subclassify tumor immunity levels, predict prognosis and help immunotherapeutic decisions.</P>

Arthroscopic Removal of Large Cartilage Fragment in a Dog with Osteochondritis Dissecans of Shoulder Joint

Se-Jin Park,Seung-Yong Lee,Jung-Hoon Kim,Seong-Hoon Seok,Tae-Yeong Park,김현진,Jun-Min Kim,이희천,연성찬 한국임상수의학회 2016 한국임상수의학회지 Vol.33 No.3

An 11-month-old, 19.5 kg, intact male Border collie was referred with intermittent left forelimb lameness to the Gyeongsang Animal Medical Center. The symptom was first discovered about 6 months ago, and it has gotten worse for the last 10 days with non-weight bearing on the left forelimb. During the physical examination, the patient showed painful reaction when the left shoulder was abducted. On radiographic assessment, a radiolucent line and some osteophytes were found in both humeral heads. Based on patient’s clinical signs and radiographic findings, osteochondritis dissecans (OCD) was very suspicious. So, we decided to perform an arthroscopic surgery on left shoulder for definitive diagnosis and treatment because the right forelimb revealed no clinical signs. During arthroscopic technique, we found a large OCD flap on the caudo-central area of humeral head, and observed severe synovitis over a wide range on posterior area of the articular capsule. The large OCD flap was removed by a grasping forceps, and many joint mice were removed either. Curettage was performed using a curette on the articular surface until hemorrhage occurred, and articular capsule flushed with a lactated-ringer’s solution. The patient was discharged on the same day without any specific abnormal status. Antibiotic, anti-inflammatory and analgesic drugs were administered. Mild lameness on left forelimb was observed in 2 weeks after surgery, but after 4 weeks, the patient showed complete normal gait without any lameness. Although surgical removal of OCD flap with arthroscopic was previously reported, We would like note that a large OCD flap can also be removed by arthroscopic surgery in this report.

Possibility of Wood Classification in Korean Softwood Species Using Near-infrared Spectroscopy Based on Their Chemical Compositions¹

Se-yeong Park,Jong-chan Kim,Jong-hwa Kim,Sang-yun Yang,Ohkyung Kwon,Hwanmyeong Yeo,Kyu-chae Cho,In-gyu Choi 한국목재공학회 2017 목재공학 Vol.45 No.2

This study was to establish the interrelation between chemical compositions and near infrared (NIR) spectra for the classification on distinguishability of domestic gymnosperms. Traditional wet chemistry methods and infrared spectral analyses were performed. In chemical compositions of five softwood species including larch (Larix kaempferi), red pine (Pinus densiflora), Korean pine (Pinus koraiensis), cypress (Chamaecyparis obtu-sa), and cedar (Cryptomeria japonica), their extractives and lignin contents provided the major information for distinction between the wood species. However, depending on the production region and purchasing time of woods, chemical compositions were different even though in same species. Especially, red pine harvested from Naju showed the highest extractive content about 16.3%, whereas that from Donghae showed about 5.0%. These results were expected due to different environmental conditions such as sunshine amount, nutrients and moisture contents, and these phenomena were also observed in other species. As a result of the principal component analysis (PCA) using NIR between five species (total 19 samples), the samples were divided into three groups in the score plot based on principal component (PC) 1 and principal component (PC) 2; group 1) red pine and Korean pine, group 2) larch, and group 3) cypress and cedar. Based on the chemical composition results, it was concluded that extractive content was highly relevant to wood class-ification by NIR analysis.

Effects of amino acids on ethanol metabolism and oxidative stress in the ethanol-perfused rat liver

Park, Yeong-Chul,Oh, Se-In,Lee, Mee-Sook,Park, Sang-Chul Korean Environmental Mutagen Society 1996 한국환경성돌연변이·발암원학회지 Vol.16 No.1

One mechanism of free-radical production by ethanol is suggested to be through the intracellular conversion of XDH to XO by increased ratio of NADH to NAD. The major mechanism for physiological compensation of cytosolic NADH/NAD balance is the malate/aspartate shutfie. Therefore, it is important to develop the method to improve the efficiency of malate/aspartate shuttle in ethanol metabolism. In the present study, various amino acids and organic acid involved in the shuttle were tested for their functional efficiency in modulating shuttle in the ethanol-perfused rat liver. The rate of ethanol oxidation in the liver perfused with aspartate alone or aspartate in combination with pyruvate, respectively, was increased by about 10% compared to control liver, but not in the tissues perfused with glummate, cysteine or pyruvate alone. Though glummate, cysteine and pyravate did not affect the ethanol oxidation significanfiy, they showed some suppresive effect on the ethanol-induced radical generation monitored by protein carbonylation analysis. Among the tested components, aspartate is confirmed to be the most efficient as a metabolic regulator for both ethanol oxidation and ethanol-induced oxidative stress in our perfusion system. These effects of aspartate would result from NAD recycling by its supplementation through the coupled aspartate aminotransferase/malate dehydrogenase reactions and the malate-aspartate shuttle.

Blood levels of cadmium and lead in residents near abandoned metal mine areas in Korea

Park, Dong-UK,Kim, Dae-Seon,Yu, Seung-Do,Lee, Kyeong-Min,Ryu, Seung-Hun,Kim, Soo-Geun,Yang, Won-Ho,Park, Doo-Yong.,Hong, Yeong-Seoub,Park, Jung-Duck,Lee, Byung-Kook,Moon, Jai-Dong,Sakong, Joon,Ahn, Se Springer-Verlag 2014 Environmental monitoring and assessment Vol.186 No.8