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      • Brief introduction of Butterfly(Lepidoptera) from Myanmar

        Ja Lang LIM,Jinyoung PARK,Ik Je CHOI,Yong Kyun OH,Eui Seok JEONG,Dong Pyeo LYU,U Pho Cho,Khin Mar Myint,Khin Mar Yi,Jong Kyun PARK 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.04

        Myanmar is located in the south-east Asia peninsular and it is flanked by five neighboring states: Bangladesh, India, China, Laos and Thailand. It is located 10~22 degree north latitude, to 92~101 degrees east longitude. Myanmar has a tropical climate with three seasons in Myanmar. Hot season (March through April), rainy season (May through October) and the cool season (November through February). The coastal regions can get very hot and humid, especially before the rainy season. Myanmar has a monsoon season from May to October when there are heavy rains and often flooding. The investigation was carried out during the dry season(2013) in Nat Ma Taung National Park and Popa Mountain Park. Popa Mountain Park is located in Kyawpadaung Township, Myinchan district, Mandaly Division. The area is 49.63 square miles. Its coordinates are 29°31'60" N and 27°43'60" E. Nat Ma Taung National Park, Myanmar treasure is in Mindut District of Chin State and its area of 279 square miles. It is the third highest mountain in Myanmar with the height of 10,500 feet. Its coordinates are 21°14'00" N and 93°54'00" E. As the result, butterflies(Lepidoptera) collected in the two regions were about 60 species of 7 familys. Collecting dates, expedition activities, photo of main specimen and information of Myanmar were provided.

      • 청소년의 스포츠 참가와 대인관계 성향의 관계

        박태근,서동균 京畿專門大學 2000 京畿專門大學 論文集 Vol.- No.28

        The researcher sampled 193 students of middle schools in Seoul and Inchon. The purpose of this study is to investigate the relationship between youth's sport participation and interpersonal relations disposition and to provide a basis for the development of personality education policy about youth. Here the researcher set youth's sport participation as a independent variable. Independent variable is youth's sport participation as classified by participation mode. Interpersonal relations disposition as a dependent variable was classified by role disposition, sociometric disposition, and expressive disposition. The questionnaires designed for this study consist of items to represent each variable. The data collected from the questionnaires were by statistical analysis methods such as multiple classification analysis, ANOVA, correlation analysis and multiple regression analysis. The conclusions of this study, verifying the hypotheses about the relationships between youth's sport participation and interpersonal relations disposition found are as follows; Youth sport participants show positive interpersonal relations disposition more so than that of nonparticipationts.

      • KCI등재후보

        Propranolol이 흰쥐 해마박편에서 GABA유리 및 CA1 추체세포의 활성에 미치는 영향

        박정희,김형룡,김관식,정동균 대한구강생물학회 1992 International Journal of Oral Biology Vol.16 No.2

        Present study was performed to clarify the effect of propranolol on the GABA release and CAl hippocampal synaptic activity employing rat hippocampal slices which appear to contain most of the intrinsic and afferent circuits and to maintain the physiological characteristics seen in the hippocampus in vivo. Hippocampal slices were prepared and pre-equilibrated in Krebs-bicarbonate medium(KBM, pH 7.4) for 1 hr at 37℃. Pre-equilibrated slices were incubated in fresh KBM and then veratrine-containing KBM for 10min period. Basal and veratrine-induced GABA release were determined from recovered medium by HPLC. After 30min resting period, slices were reincubated in propranolol-containing KBM and propranolol plus veratrine-containing medium consecutively for 10min period each to investigate the effect of propranolol on basal or veratrine-induced GABA release from hippocampal slices. Extracellular population spike from CAl stratum pyramidale was measured with tungsten electrode having a tip resistance of 3-5㏁. Propranolol inhibited veratrine-induced GABA release in a dose-dependent manner. Propranolol reduced orthodromically evoked population field potentials from CAl stratum pyramidale in a concentration-dependent manner. The inhibitory effect of propranolol on GABA release and evoked population field potentials seems to be a result of sodium channel blockade.

      • 輸入開放에 對應한 中長期 全北地域 農業政策方向에 關한 硏究

        朴正根,徐東均 全北大學校 1992 論文集 Vol.34 No.-

        This paper attempts to analyze the direction of agricultural polices of Chonbuk region in the trade liberalization and to suggest an alternative regional policy of agricultural development in Chonbuk province. The increasing pressure of agricultural import liberalization from abroad has given great burden to Chonbuk agricultural sector which has lagged behind the average growth of national agriculture. The charactersitics of Chonbuk agriculture can be summarized as wide-spread small scale farming, greater portion of old-aged labor and rice monoculture system. However, the agricultural production sector of Chonbuk becomes more and more commercialized and the consumption patterns of agricultural products become diversified and high-quality oriented continuously. The present situation of Chonbuk agricultural is in a vulnerable state to those changes. Divergent measures in Chonbuk agriculture are urgently requested for the improvement of present production structure. Among these, the increase of Chonbuk local government investment for various in infra-structure of agricultural facilitis should be carried out in such a way that agricultural productivies can be enhansed. Furthermore, it is also important to emphasize on fostering specific activities that develops an appropriate technologies induced by changes of resource endowments.

      • 일부 도시지역 노인들의 우울과 일상생활능력에 관련된 요인

        박원규,이태용,정용준,오장균,이동배,조영채 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

        This study was performed to provide the basic data and related factors available for the assessment of the degree of ADL and depression among older persons, manifesting their physical and psychological status. The subjects included the old people aged more than 65 years old who reside in urban areas. The interviews were delivered to 693 individuals in Taejon metropolitan city during the two-month period from June to July, 2000, and Zung Self-Rating Depression Scale and IADL developed by Older American Resources and Services of Duke medical college, were employed for the assessment of depression and IADL, respectively. The collected data were statistically processed by SPSSWIN(ver 10.0) and led to the following results. The degree of depression among 635 subjects showed that 26.6% had mild depression, 8.2% moderate and 0.6% severe while 64.6% were normal. In terms of IADL, 6.9% had impossible IADL when not aided by others, 37.0% needed some help, 56.0% possible IADL, and the higher depression scores, the significantly higher IADL scores. Based on general characteristics, depression scores were significantly higher in the female group, the older, the lower educated, the ones without cohabitants, without a spouse, without making expenses of living on their own, and IADL scores were lower, meaning the lower capability for performing daily activities, in the male group, the older, the higher educated, the group without a spouse, without making expenses of living on their own. Based on daily activities and psychological characteristics, depression scores were higher in the group who don't go out, who don't have recreational or friendly gatherings, who aren't satisfied with the lives of the past or present, who have a sense of isolation, and who don't have the will to live, and IADL scores were lower in the group who don't go out, who don't have recreational or friendly gatherings, who aren't satisfied with the lives of the past or present, who have a sense of isolation. and who don't have the will to live. Multiple regression analysis revealed that the explanatory variable having effects on depression symptoms included, with the explanatory power of 57.5%, the confidence in life, the degree of education, the subjective index of health, the sense of isolation, the exercise, the degree of IADL, the gender, the level of satisfaction with life, whether they eat breakfast or not, the concern about life, the smoking, the going out, the presence of spouse or not. The explanatory variables having effects, with the explanatory power of 28.9%, on IADL scores included the degree of depression symptoms, the age, the presence of friends or not, the frequency of outgoing, the level of education, the degree of obesity, the confidence in life, the level of satisfaction with life, the drinking or not. The study results showed that the higher depression scores had a tendency to be associated with the decreased capabilities of performing daily activities, and that the factors related to depression and/or IADL, included the confidence in life, the level of education, and the level of satisfaction with life. However, the more detailed and decisive results on the factors related to depression and IADL of the older persons are considered to require continuing efforts and comparisons among a variety of the older population.

      • KCI등재후보

        난소적출 및 수종 Hormone투여가 치아및 치은의 Collagen 생합성에 미치는 영향에 관한 실험적 연구

        박우찬,정동균 대한구강생물학회 1980 International Journal of Oral Biology Vol.4 No.1

        The effects of ovariectomy, several hormones and fluoride on the collagen turnover in teeth, pulp and gingiva were studied employing the Sprague-Dawley female rats. The rats were divided into non-treated and treated group, and treated group on which had been performed ovariectomy operation, was further subdivided into 5 groups, i.e., control, estrogen, testosterone, prednisolone and fluoride administered group. Then, each group was treated with ^3H-proline and sacrificed according to a predetermined schedule. Pulp, teeth and gingiva were removed immediately and decalcified for 3 days. After digestion of samples, separation and quantitative analysis of proline and hydroxyproline were performed employing thin layer chromatography and radioactivity of seperated amino acid was assayed by liquid scintillation counter. The results were as follows ; 1. In non-treated group, the incorporation rate of ^3H-proline into hydroxy-proline was greater in pulp of teeth than in hard tissue of teeth and gingiva. Collagen turnover of lower root, lower pulp and gingiva was more rapid than any other tissues tested. 2. In all the tissues from ovariectomized rats, the incorporation of ^3H-proline into collagen was markedly decreased. 3. The decreased effect of ^3H-proline incorporation into collagen by ovariectomy was markedly antagonized with estrogen, moderately or slightly with testosterone in all the tissues tested, whereas fluoride had a slightly antagonizing effect only in th lower incisor roots. The effect of ovariectomy on collagen turnover was augmented or not influenced by prednisolone.

      • KCI등재

        새로운 청색 발광 고분자 합성

        박재균,오동원,이우붕 慶北大學校 師範大學 科學敎育硏究所 2007 科學敎育硏究誌 Vol.31 No.-

        Two polyfluorenes, poly[9,9-dioctylfluorenyl-2,7-diyl](P1) and Poly[9,9'-dioctyl fluorene-CO-9,9-bis(4-diphenylaminophenyl) fluoren](P2), were synthesised using the Suzuki coupling reaction. The use of bulky substituents(triphenylamine) in the main chin of P2 improves solubility but exacerbates the twisting in the main chain, further limiting the conjugation lengths and extending π-π* energy gap. The polymers possessed good solubility in common organic solvent such as Toluene, THF, chloroform and so on. The polymers characterized by ¹H-NMR, ¹³C-NMR, GC-MASS, GPC, DSC, TGA, UV -vis., PL. The initial degradation temperatures(T_(id)) of P1, P2 and ADS431BE showed respectively 416 °C, 425 °C and 407 °C, which means all of them have high degradation temperature. Glass Transition temperature(Tg) of P2 showed more high temperature than other polymers(P1, ADS431BE) because of decrease of flexibility by twisting in the main chain. The maximum absorption peak in the UV-vis spectrum of P1, P2 is located all at 390 nm. The maximum emission peaks of P1 and P2 showed all at 438 nm blue region. All of P1 and ADS431BE showed broad wavelength region and had excimer. The P2 showed sharp wavelength region and hardly had excimer. Therefore color purity of the P2 is better than P1, ADS432BE. 연구에서는 유기EL분야에 응용 가능한 새로운 Fluorene계 청색발광 고분자를 합성하기 위해서 Fluorene을 이용해서 단량체인2,7-dibromofluorene, 2,7-dibromo-9,9-dioctylfluorene(M2), 2,7-dibromo-9- fluorenone,9,9-bis(4-diphenylaminophenyl) -2,7-dibromolfluorene(M3)을 합성하였다. Fluorene의 C-9번 위치에 octyl 그룹이나 thphenylamine을 치환하여 유기용매에 잘 용해되도록하였다. P1고분자는 단량체 2,7-dibromo-9,9-dioctylfluorene(M2)을 그리고 P2고분자는 단량체 2,7-dibromo-9,9-dioctylfluorene(M2)와9,9-bis(4-diphenylaminophenyl)-2,7-dibromolfluorene(M3)을 그리고 고분자의 end-capping과 전자 수송능력을 향상시키기 위해 2-(4-bromophenyl)-5-phenyl -1,3,4-oxadiazole을 Pd(0) 촉매로 사용하는 Suzuki coupling 중합법으로 합성하였다. P2고분자에 치환된 triphenylamine은 고분자의 정공 수송능력을 향상시키는 작용을 한다. 각각의 단량체와 고분자의 구조분석은 1H-NMR, 13C-NMR, GC-MASS를 이용하여 분석하였고, 고분자의 열적분석은 DSC, TGA를 통해 측정하였고, 광학적 특성은 PL, UV-vis를 통하여 분석하였다.

      • 홈 네트워크 테스트베드 설계 및 구축

        박세건,강투무르,김동균,이상정 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.2

        Recently, as many next-generation appliances are become digital and intelligent, companies have come out various networked appliances to communicate with each other though home network. It will be expensive and difficult to apply new technologies using real appliances for verifying application services. Therefore, a home network testbed, which is consisted of simulator and emulator for verifying interworking services of various information appliances, is needed to reduce design cost and time. In this paper, a home network testbed is implemented and designed to support interworking services of home network. The devices in the testbed are designed with modular components for reusability, and the components are invoked through XML message. The correctness and effectiveness of the testbed is verified through interworking services on various components.

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