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Clonal Propagation through Leaf Sheath Culture of Phalaenopsis
Jo,Man-Hyun,Ham,In-Ki,Lee,Mi-Ae,Han,Gyu-Heung,Woo,In-Shik 한국자원식물학회 2002 Plant Resources Vol.5 No.3
This study was conducted to develop the clonal propagation technique through in vitro culture using by leaf sheath explants of Phalaenopsis grown in vitro. The highest frequency of protocorm-like body (PLB) formation was obtained when explants of leaf sheath were cultured on VW medium containing 30g/L sucrose, 500 mg/L activated charcoal, 150 mVL coconut water, 1 mg/L NAA, 1 mg/L 2ip and 2.5 g/L gelrite. The PLB formation rate of VW medium was highest followed by modified Hyponex medium, and lowest in MS medium. Plantlets induced from PLBs transferred to plastic pots including spagnum moss were well developed.
조창규,한유석 대한언어학회 2001 언어학 Vol.9 No.2
Jo. Changgyoo & Han, Yuseok 2001. A Statistical study on Youngrng's Poetic Diction, the Linguistic association of Korea Journal A 9(2), 139-158. This study airs to investigate the features of Kim, Ycungrang's poetic diction by way of statistical method The corpus is consist of B5 poem, And the size of the corpus is 471D words and 11,969 syllables. The results I get are as follows, (1) The Local color of the poems of Kim, Youngrang is caused by Kangjin dialect which form B,3 percent rather than wads which are related to nature. (2) Youngang use the more adjectives and adverbs as compared with other poets. The effects of this are descriptive, (Doug-shin University)
Jo,Man-Hyun,Ham,In-ki,Park,Sang-kyu,Seo,Gwan-Seok,Han,Gyu-Heung,Woo,In-Shik 한국자원식물학회 2003 Plant Resources Vol.6 No.2
This study was conducted to develop the clonal propagation technique through in vitro culture using basal stem explants in Phalaenopsis hybrid grown in vitro. The highest frequency of protocorm-like body (PLB) formation was obtained when basal stem explants were cultured on VW medium containing 30g/L sucrose, 500 mg/L activated charcoal, 150 ml/L coconut water, 1 mg/L NAA, 5 mg/L 2iP and 2.5g/L gel rite. PLBs transferred to Hyponex medium were regenerated to plantlets. Plantlets transferred to plastic pots containing spagnum moss were developed and successfully acclimatized under greenhouse. The flower was bloomingly opened in plants regenerated from basal stem explants. The flower was not different from both mother plant and plant induced through clonal propagation of Phalaenopsis hybrid.
Effect of In-row Plant Spacing on Growth and Yield of Korean Native Allium wakegi Araki
Jo,Man-Hyun,Ham,In-Ki,Park,Sang-Kyu,Seo,Gwan-Seok,Han,Gyu-Heung,Woo,In-Shik 한국자원식물학회 2003 Plant Resources Vol.6 No.2
Allium wakegi Araki was grown at plant spacings of 5, 10, 15, and 20 cm to determine the effect of planting density on the growth and yield. Allium wakegi Araki plants grown at the 5 cm plant spacing had the lowest bulb diameter and bulb weight, while plants at the lowest density (20 cm spacing) had the highest bulb diameter, bulb number, bulb weight and fresh weight. In general, plants grown at narrower spacings produced significantly smaller bulb diameter and bulb weight, but resulted in the highest yields and plants per hectare and lower fresh weights per plant.
조한진,전정식 한국장애인고용촉진공단 고용개발원 2007 장애와 고용 Vol.17 No.1
본 연구는 중증장애인의 고용 확대를 위해 자립생활센터가 하고 있는 일을 조사하고, 이것이 중증장애인 고용과 관련하여 시사하는 바를 분석해 보고자 하였다. 이를 위하여, 본 연구는 자립생활센터의 중증장애인 고용 실태와 장애인 고용지원 서비스의 실태에 초점을 두었다. 조사는 20개의 자립생활센터에 대한 전자우편 설문과 직접 면접을 통하여 2006년 7월부터 8월까지 2개월 동안 진행되었다. 연구 결과에 따르면, 자립생활센터는 장애인, 특히 중증장애인의 고용에 있어 적극성을 보였다. 자립생활센터에 고용된 중증장애인들의 근속기간도 길게 유지되는 것으로 나타났다. 자립생활센터의 중증장애인들은 근로자로서의 신분을 지니면서 다양한 내용의 직무를 수행하고 있었다. 또한 자립생활센터는 장애인에게 취업 전 지도 및 교육 서비스를 비롯한 고용지원 서비스를 제공하고 있었다. 이에 자립생활센터의 중증장애인 고용과 고용지원을 촉진하기 위한 방안을 제시하였다. This study intended to examine what independent living centers (ILCs) were doing to increase the employment of people with severe disabilities and intended to analyze what the roles of ILCs suggested with reference to their employment. For that purpose, the study focused on the state of employment of people with severe disabilities in ILCs and on the state of employment-support services for people with disabilities. Data collection was conducted for two months from July to August 2006 through e-mail questionnaires to and in-person interviews with 20 ILCs. The findings indicated that ILCs were very active in employing people with disabilities, more particularly people with severe disabilities. Employees with severe disabilities have served in ILCs for a long time. People with severe disabilities in ILCs were carrying out their various duties as employees. Also, ILCs were providing employment-support services, including pre-employment coaching and training services, to people with disabilities. Hereupon, the study came up with several suggestions to promote the employment of people with severe disabilities in ILCs and to expand employment-support services for people with disabilities.
적조생물구제농도의 Sodium Hypochlorite (NaOCl)의 노출에 따른 조피볼락 및 바지락의 조직학적 영향
한조희,김영석,허민도,정해진,박관하 한국환경독성학회 2001 환경독성보건학회지 Vol.16 No.2
In a previous study by Kim et al. (2000), sodium hypochlorite (NaOCI) has been demonstrated to be effective against algae that cause red tides. To secure the environmental safety of the chemical in practical use, effect of NaOC1, at concentrations. required for algicidal activity, on the histology of rockfish and little neck clam was examined. When the animals were exposed to NaOCI at concentrations of 0.5 or 2 ppm for I hr, there was no exposure-associated histological change in either animal. As the experimental exposure condition was set in consideration of the use, our results provide safety information necessary for practical application to marine fields.
간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례
조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-
Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.
趙星煥,朱炅煥,林漢鍾 고려대학교 의과대학 1984 고려대 의대 잡지 Vol.21 No.3
The development of acquired resistance in clonorchiasis was studied in rats experimentally infected with Chonorchis sinesis. The induction of acquired resistance was attempted by first exposing adult rats to 15 or 50 metacercariae of C. sinesis from naturally infected Pseudorasbara parva and then treated with praziquantel prior being challenged. The reinfection was performed at 1, 2, 4, and 8 weeks after elimination of flukes. Worm recovery rates and growth of the worms obtained from rats necropsied at 4 weeks after reinfection were compared to those of control group. End point titers of rat's serun were studied by ELISA at the time of reinfection and morphological findings of bile ducts were also studied by the light microscope. In other experiments, rats were infected repeatedly with 5 or 10 metscercariae at 1 week interval for 5 times. Animals were kills 4 weeks after the last exposure and the results were compared to a single infection of 25 or 50 metacercariae. Worm collection was failed in rats challenged with 50 metacercariae at 1 or 2 weeks after treatment. Worm recovery rates were 3.5 and 20.0% in rats reinfected at 4 and 8 weeks respectively after treatment, while 41.5% in control rats. In other experiment, 15.6%, 18.3% and 33.3% in worm recovery rates were obtained in rats, challenged with reinfections at 2, 4, and 8 weeks respectively after treatment of these rats initially infected with 15 metacercariae. Recovery rates were 50.0% in control group. Worm racovered in this experiment were found retarded in growth compared to control group. High end point antibody titers of the rat serum at the time of reinfections were presented by ELISA and it seemed too suppress maturation of the worms. Histopathological recovery of the bile ducts were not remarkable until 4 weeks after treatment and it may be contributed to reinfection as an another protecting factor. Multiple low dose repeated infection showed lower recovery rates compared to high dose single infection. Worm recovery rates of animals infected 5 times with 5 metacercariae were 11.0% and single infection on 25 were 53.0%. That of animals infected 5 times with 10 metacercariae was 13.0% compared to 41.5% of single infection of 50 metacercariae. In conclusion, the data presented in this study indicate that during the course of infection by C. sinesis acquired resistance is induced by preceding infection although complete protection may not be elicited.