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김흥식,김인수,홍금희,김남영,박광서,김정유,박완근 江原大學校 森林科學硏究所 2003 Journal of Forest Science Vol.19 No.-
2002년 3월부터 2003년 10월까지 유명산 자연휴양림을 대상으로 식물상과 산림군락구조를 조사한 결과, 관속식물이 98과 331속 570종 1아종 81변종 4품종 2교잡종으로 총 658종류로 나타났으며, 한국특산식물은 10과 14속 13종 2변종 1교잡종 총 16종류. 희귀 및 멸종위기식물은 9과 10속 11종 총 11종류, 귀화식물은 12과 22속 28종 총 28종류로 나타났다. 산림군락은 신갈나무-철쭉군목, 신갈나무-생강나무군단, 소나무-산거울군락, 잣나무-주름조개풀군락, 물푸레나무-신갈나무군락, 층층나무-신갈나무군락, 굴참나무-신갈나무군락, 싸리-신갈나무군락으로 전체 1군목, 1군단, 6군락이 분포하는 것으로 나타났다. The study was carried out to investigate the flora and community classification of forest vegetation in Mt. Yumyeong from March, 2002 to October, 2003. As a result of that, the vascular plants were 98 families, 331 genera, 570 species. 1 subspecies, 81 varieties, 4 formae, 2 hybrid, 658 taxa in all. Korean endemic plants were 10 families, 14 genera, 13 species, 2 variaties, 1 hybrid. 16 taxa in all ;, rare and endangered plants were 9 families, 10 genera. 11 species, 11 taxa in all ; naturalized plants were 12 families, 22 genera, 28 species, 28 taxa in all. The forest vegetation was classified into 1 order, 1 alliance. 6 communities : Rhododendro - Quercetalia mongolicae (Kim, 1990) Lindero - Quercion mongolicae (Kim, 1990) A. Carex humilis var. nana - Pinus densiflora Community B. Oplismenus undulatifolius - Pinus koraiensis Community C. Fraxinius rhynchophylla - Quercus mongolica Community D. Cornus controversa - Quercus mongolica Community E. Quercus variabilis - Quercus mongolica Community F. Lespedeza bicolor - Quercus mongolica Community
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Red phosphorescent organic light-emitting diodes based on the simple structure.
Seo, Ji Hyun,Lee, Seok Jae,Kim, Bo Young,Choi, Eun Young,Han, Wone Keun,Lee, Kum Hee,Yoon, Seung Soo,Kim, Young Kwan American Scientific Publishers 2012 Journal of Nanoscience and Nanotechnology Vol.12 No.5
<P>We demonstrated that the simple layered red phosphorescent organic light-emitting diodes (OLEDs) are possible to have high efficiency, low driving voltage, stable roll-off efficiency, and pure emission color without hole injection and transport layers. We fabricated the OLEDs with a structure of ITO/CBP doped with Ir(pq)2(acac)/BPhen/Liq/Al, where the doping concentration of red dopant, Ir(pq)2(acac), was varied from 4% to 20%. As a result, the quantum efficiencies of 13.4, 11.2, 16.7, 10.8 and 9.8% were observed in devices with doping concentrations of 4, 8, 12, 16 and 20%, respectively. Despite of absence of the hole injection and transport layers, these efficiencies are superior to efficiencies of device with hole transporting layer due to direct hole injection from anode to dopant in emission layer.</P>
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Seo Young-Jun,Kum Chang Dae,Rho Jung Gi,Shim Young Suk,Lee Hae Sang,Hwang Jin Soon 대한소아내분비학회 2022 Apem Vol.27 No.2
Purpose: We investigated the possible effects of diabetic ketoacidosis (DKA) at the initial diagnosis of type 1 diabetes mellitus (T1DM) on the clinical outcomes of pediatric patients. Methods: Medical records of children and adolescents with newly diagnosed T1DM seen in the Ajou University Hospital from January 2008 to August 2020 were reviewed and analyzed. Results: Among 129 diagnosed T1DM patients, 40.3% presented with DKA. Although demographic and basic characteristics did not differ between DKA and non-DKA patients, DKA patients needed a significantly higher insulin dosage than non-DKA patients for 2 years after diagnosis. However, control of glycated hemoglobin was not different between the DKA and non-DKA groups during the observation period. In the biochemical analysis, C-peptide, insulin-like growth factor-1, and insulin-like growth factor binding protein 3, high-density lipoprotein cholesterol, free T4, and T3 values were lower, but thyroid-stimulating hormone, initial serum glucose, uric acid, total cholesterol, triglyceride, and low-density lipoprotein cholesterol values were higher in DKA patients than non-DKA patients at the diagnosis of T1DM; however, these differences were temporarily present and disappeared with insulin treatment. Other clinical outcomes, such as height, thyroid function, and urine microalbumin level, did not vary significantly between the DKA and non-DKA groups during 5 years of follow-up. Conclusion: DKA at initial presentation reflects the severity of disease progression, and the deleterious effects of DKA seem to impact insulin secretion. Although no difference in long-term prognosis was found, early detection of T1DM should help to reduce DKA-related islet damage and the socioeconomic burden of T1DM. Purpose: We investigated the possible effects of diabetic ketoacidosis (DKA) at the initial diagnosis of type 1 diabetes mellitus (T1DM) on the clinical outcomes of pediatric patients.Methods: Medical records of children and adolescents with newly diagnosed T1DM seen in the Ajou University Hospital from January 2008 to August 2020 were reviewed and analyzed.Results: Among 129 diagnosed T1DM patients, 40.3% presented with DKA. Although demographic and basic characteristics did not differ between DKA and non-DKA patients, DKA patients needed a significantly higher insulin dosage than non-DKA patients for 2 years after diagnosis. However, control of glycated hemoglobin was not different between the DKA and non-DKA groups during the observation period. In the biochemical analysis, C-peptide, insulin-like growth factor-1, and insulin-like growth factor binding protein 3, high-density lipoprotein cholesterol, free T4, and T3 values were lower, but thyroid-stimulating hormone, initial serum glucose, uric acid, total cholesterol, triglyceride, and low-density lipoprotein cholesterol values were higher in DKA patients than non-DKA patients at the diagnosis of T1DM; however, these differences were temporarily present and disappeared with insulin treatment. Other clinical outcomes, such as height, thyroid function, and urine microalbumin level, did not vary significantly between the DKA and non-DKA groups during 5 years of follow-up.Conclusion: DKA at initial presentation reflects the severity of disease progression, and the deleterious effects of DKA seem to impact insulin secretion. Although no difference in long-term prognosis was found, early detection of T1DM should help to reduce DKA-related islet damage and the socioeconomic burden of T1DM.
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등속성 운동프로그램이 허리의 근력 및 만성 요통에 미치는 영향
서영환(Young-Hwan Seo),이금비(Kum-Bee Lee),김영선(Young-Sun Kim),최용선(Yong-Sun Choi),오은해(Eun-Hae Oh),차영숙(Yeong-Suk Cha),주윤용(Youn-Yong Joo) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.3
The purpose of this study is to investigate the effects of isokinetic exercise program on lumbar muscle strength and chronic low back pain in 3040 women with low back pain. The subjects were randomly sampled 20 female 3040 women living in S city and divided into 10 exercise groups and 10 control groups, and performed isokinetic exercise for 8 weeks. After exercise, the differences in the groups were subjected to paired t-tests, and differences between groups were subjected to independent t-tests. The following conclusions were obtained. First, it showed that 30o/sec peak torque flexion, the 30o/sec peak torque extension/body weight, and the 30o/sec peak torque flexion/body weight was a statistically significant difference after isokinetic exercise in the exercise group (p<.001). Second, 30o/sec Agonist/Antagonist Ratio showed statistically significant difference after isokinetic exercise in the exercise group (p<.05). Third, Visual Analog Scale (VAS) and Verbal Rating Scale (VRS) showed statistically significant difference after isokinetic exercise in the exercise group(p<.001). Fourth, the results of the pre-specimen between the two groups showed a statistically significant difference at 30o/sec peak torque flexion, 30o/sec peak torque flexion/body weight, and 30o/sec agonist/antagonist ratio. The results of the post-specimen between the two groups showed statistically significant differences at 30o/sec peak torque extension, 30o/sec peak torque extension/body weight, visual analogue scale (VAS) and verbal rating scale (VRS)(p<.05). When sum up the above results, if we perform isokinetic exercise periodically, 3040 women suffering from chronic back pain will be able to relieve their pain by strengthening their back strength. In addition, chronic low back pain has been expanding to all ages in recent years. Therefore, future studies are expected to reduce the pain and reduce the medical expenses by applying isokinetic exercise program to adolescents and the elderly.
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Kwon, Young Soo,Lee, Kum Hee,Young Kim, Gu,Seo, Ji Hoon,Kim, Young Kwan,Yoont, Seung Soo American Scientific Publishers 2009 Journal of Nanoscience and Nanotechnology Vol.9 No.12
<P>A series of seven diarylaminofluorene-derived fluorescent molecules demonstrating a blue emission in organic light-emitting diodes (OLEDs) were synthesized via the Horner-Wadsworth-Emmons reaction and the Suzuki-cross coupling reaction. Among the molecules, one device exhibited blue emission with a maximum luminance of 28900 cd/m2 at 12 V. A luminous efficiency of 11.5 cd/A at 20 mA/cm2 was achieved. The peak wavelength of the electroluminescence (EL) was 459.5 nm with the CIE coordinates of (x = 0.173, y = 0.281) at 8 V. The device also showed a stable color chromaticity at various voltages.</P>
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노영호 ( Young-ho Noh ),서금현 ( Kum-hyun Seo ),박영석 ( Young-seok Park ),박준영 ( Jun-young Park ) 한국환경농학회 2018 한국환경농학회 학술대회집 Vol.2018 No.-
1995년 WTO체제 출범 이후 지속적으로 각 국의 시장 개방이 확대되고 있으나, 미국·일본·EU 등 선진국은 수입농산물에 대한 안전성검사 뿐만 아니라 자국 농산물에 대해서도 철저한 안전성검사를 병행하고 있다. 우리나라도 국민의 생활 수준이 향상되고 식품의 안전성에 대한 소비자들의 관심이 증대함에 따라 농산물 안전성조사의 필요성이 대두되었다. 1994년 유기재배 인증농산물에 대한 안전성검사를 시작으로, 현재 「농수산물품질관리법」에 근거하여 부적합 농산물의 시중 출하를 사전에 차단하는 업무에 중점을 두고 있다. 국립농산물품질관리원(이하 농관원)은 농림축산식품부 산하기관으로 시험연구소 및 도단위 지원 9개의 시군단위에 사무소 115개로 구성되어 있는 전국적인 조직망을 갖춘 기관으로 현장농정업무의 역할을 수행하고 있으며, 이번 PLS 도입에 따라 안전성조사 업무와 전국조직망을 통한 농업인 중심의 교육을 실시하고, 제도의 연착륙을 통한 농업인과 소비자를 동시에 보호할 수 있도록 노력하고 있다. 생산단계 농산물을 대상으로한 잔류농약, 중금속, 곰팡이독소 등 유해물질에 대한 조사는 전세계에서 우리나라가 유일하게 실시하며, 이는 고품질다수확, 농업인 고령화 등 우리나라 농업여건에서 기인하여 안전한 농산물 생산을 통한 농가소득 향상 및 부적합 농산물에 의한 소비자의 피해를 방지하는데 목적이 있다. 최근 3년간 농산물 잔류농약검사 결과에서 검출된 농약 성분의 전체 건수 대비 해당 농산물에 등록되지 않은 농약성분이 검출된 건은 약 12% 수준으로 이는 국내 농업 여건에 따른 농약관리제도의 미비점과 향후 농업인의 어려움이 예상되어 농림축산식품부에서는 농약제도개선 및 교육·홍보를 통해 해결코자 “민관 합동 PLS 대응 TF”를 구성하여 운영하고 있다. 교육 대상을 농업인, 산지유통인, 농약판매상 등으로 구분하여 잔류허용기준 미설정 농약을 대상으로 한사전예보제, 마을단위 교육 등으로 교육방법을 다각화하여 실시하고 있으며, 2018년 1월에서 5월까지 약 27.7만명에 대해 제도인지와 올바른 농약사용을 중점적으로 교육하였다. 2018년 농관원의 교육 목표는 약 39.3만명이며, 하반기에는 시군별 부적합 상위품목 작목반, 산지유통인, 안전성조사 농가 등을 대상으로 제도의 보완사항을 공유하는 등 사전예보제 및 품목별 농약등록현황을 활용한 농업인 교육을 추진하고자 한다. 농관원 생산단계 잔류농약 안전성조사는 부적합 이력이 있는 품목을 대상으로 연간 1만여건을 실시하여 매년 부적합 농산물의 출하 차단률을 올리는 성과를 이루고 있으며, 부적합사례로는 알타리무, 취나물, 수삼 및 언론에 이슈화된 쌀의 Thiacloprid 검출사건을 공유하고자 한다.
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