• Title/Summary/Keyword: systemic application

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Control of Crisphead Lettuce Damping-off and Bottom Rot by Seed Coating with Alginate and Pseudomonas aeruginosa LY-11

  • Heo, Kwang-Ryool;Lee, Kwang-Youll;Lee, Sang-Hyun;Jung, Soon-Je;Lee, Seon-Woo;Moon, Byung-Ju
    • The Plant Pathology Journal
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    • v.24 no.1
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    • pp.67-73
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    • 2008
  • Seedling damping-off and bottom rot caused by Rhizoctonia solani are yield limiting diseases of crisphead lettuce. To provide biocontrol measure in the management of the diseases, biocontrol strain Pseudomonas aeruginosa LY-11 was isolated from lettuce rhizosphere and introduced into crisphead lettuce rhizosphere by the seed coating delivery method. Alginate was used as a coating material to generate beads containing $10^6-10^{6.5}$ colony-forming units (CFUs) of viable bacterial cells of LY-11. When seeds germinated from the alginate beads containing the strain LY-11, the bacteria established mostly in plant rhizosphere to maintain at least $10^4$ CFU per gram of plant tissues. Crisphead lettuce seedlings germinated from the entrapped seeds were less affected from damping-off and bottom rot with disease control values of 70.4% and 85.4% respectively. Although P. aeruginosa LY-11 colonized plant rhizosphere and not phyllosphere, the result indicated that bottom rot caused by the foliar inoculation of R. solani was effectively reduced by the rhizobacteria. All data suggested that immobilized rhizobacterial application in seeds by alginate coating could control damping-off and induce induced systemic resistance of crisphead lettuce to reduce bottom rot.

University's the UCC Project Teaching and Learning Model Development and its Application (대학의 UCC 프로젝트 교수·학습 모형 개발 및 적용)

  • Kwon, Myung-Soon;Kan, Jin-Sook
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.4
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    • pp.937-957
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    • 2013
  • This study was conducted for the purpose of developing the UCC project teaching and learning model based on the rationale which are applicable effectively in the field of university education. Firstly, we have designed the rationale based on the research of documents and preceding researches about teaching method models. Secondly, we have developed the UCC project teaching and learning model. the UCC project teaching and learning model based on the rationale was assessed by the professional formative evaluation group and tested in the field of university education in advance and thereafter. It was finally rectified and supplemented. Particularly, any corrections were to be made repeatedly in the stage of developing of the UCC project. And also, during the assessment and arrangement process, it was designed for the study participants to feel a sense of achievement as learners who combine knowledge and attitudes toward participants'subjects of the curriculum and professional vocational skills by performing the nursing science training scene which could happen in the field. Thirdly, the final version of the UCC project teaching and learning model was verified in its effectiveness by being applied in the field of the nursing science education in the $2^{nd}$ step. As a result, we noticed that learners diverse abilities were improved through systemic process and performing elements such as teaching plan which was needed for designing the UCC project in the field, making storyboard and skills for making video contents. We hope that the UCC project teaching and learning model in this study will be used by the students for designing, developing and utilizing educational UCCs which are necessary in industrial fields and it will contribute for training university students as professionals having the practical skills in the field.

Long-Term Result of the Epiphyseal Transplantation in Distal Forearm (전완원위부 변형에 대한 혈관부착 성장판 이식술)

  • Chung, Duke-Whan;Han, Chung-Soo;Yoo, Myung-Chul;Han, Soo-Hong
    • Archives of Reconstructive Microsurgery
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    • v.4 no.1
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    • pp.16-22
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    • 1995
  • We analyzed 11 children who underwent epiphyseal transplantation to the forearm for manage growing deformity ranged from 2 years 6 months to years(average 5 years 10 months) follow-up period. Etiologies of the functional impairment of the eleven were five traumatic, three congenital and three tumorous conditions. Lesions of epiphysis were distal radius in eight patients and distal ulna in three patients. Operation was performed with removal of non-functioning or deformed epiphysis followed by transplantation of free vascularized proximal fibular epiphysis with microvascular anastomesis. Evaluation was performed radiologically and functionally. The 9(81.8%) patients showed growth of transplanted epiphysis by radiological examination during follow up. At the last follow up, average growth rate was 0.86cm per year excepts 2 cases of no growth. Active wrist motion near normal to contralateral joint was achieved in 7 patients. In other 2 patients, active joint motion was improved but weaker than contralateral joint. Complications on donor site were two transient peroneal nerve palsy which have been resolved after 2 and 5 months post operation and one valgus ankle deformity. The ankle deformity was corrected with $Langenski\"{o}ld$ operation of the dital tibiofibular fusion. At recipient site, there was one superficial infection and it was easily controlled by systemic antibiotics. Many subsequent reports have described successful nonvascularized epiphyseal transplante, but overall results have been inconsistent and unsatisfactory. Other experimental and clinical studies in the transfer of vascularized epiphyses has encourage its clinical application. We also could gel successful growth in several cases with free vascularized epiphyseal transplantation.

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Application of Conflict Management System and Proposal of Psychological Resolution Mechanisms (갈등관리시스템 적용과 심리적 해결기제 방안)

  • Kim, Gang-Min;Kim, Jong-Ho
    • The Journal of the Korea Contents Association
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    • v.11 no.8
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    • pp.365-377
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    • 2011
  • In conclusion, the systemic environment was shown that negative environment was being created to deepen conflict, and the conflict processes could be changed in either positive or negative directions by the psychological environment and psychological resolution mechanisms proposed afterward. As the result that the psychological environment was improved into aggressive mood with constant communication effort with the interested parties, the psychological resolution mechanism was also presented in the suitable forms of aggressive communication. On the contrary, if developed psychologically negative environment, the psychological resolution mechanism was also negatively affecting the conflict processes with dogmatic and consistent response rather than flexible response suitable to the situations.

The Comparative Study of Fructus Immaturus Ponciri and Fructus Ponciri Effect on Allergic Reaction (알레르기반응에 대한 지실과 지각의 효과 비교 연구)

  • 엄용대;김대한;정종길;신민교;송호준
    • The Journal of Korean Medicine
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    • v.22 no.4
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    • pp.10-21
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    • 2001
  • Objective : To investigate the effect between Fructus Immaturus Ponciri (FIP, the immature fruit of Poncirus trifoliata) and Fructus Ponciri (FP, the ripe fruit of Poncirus trifoliata) on mast cell-mediated immediate-type allergic reactions. Methods : We performed anaphylactic reaction, histamine release, cAMP, $TNF-{\alpha}$, IgE. Results : The aqueous extract of FIP dose-dependently inhibited systemic and local allergic reaction was induced by compound 48/80 or anti-dinitrophenyl (DNP) IgE in a murine model. FIP also significantly inhibited mast cell-dependent ear swelling response induced by topical application of compound 48/80. When mice were orally pretreated with FIP, the plasma histamine levels were reduced in a dose-dependent manner. FIP dose-dependently inhibited histamine release from the rat peritoneal mast cells (RPMCs) was activated by compound 48/80 or anti-DNP IgE. The level of cAMP in RPMCs, when FIP was added, increased compared with that of a normal or control. In addition, FIP had a significant inhibitory effect on anti-DNP IgE-induced tumor necrosis factor-a ($TNF-{\alpha}$) production from the RPMCs and IgE produced by lipopolysaccharide-stimulated murine whole spleen cells or U266B1 as human IgE-bearing B cells. However, FP showed the lower inhibition rate than those of FIP in above all allergic reactions. Conclusion : These data have important implications for our understanding of the clinical effects of FIP and FP on allergic diseases, and FIP is more effective than FP on the allergic reaction.

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Preparation of 5-Fluorouracil-Loaded Poly(L-lactide-co-glycolide) Wafer and Evaluation of In Vitro Release Behavior

  • Lee, Jin-Soo;Chae, Gang-Soo;An, Tae-Kun;Gilson Khang;Cho, Sun-Hang;Lee, Hai-Bang
    • Macromolecular Research
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    • v.11 no.3
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    • pp.183-188
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    • 2003
  • The controlled delivery of anticancer agents using biodegradable polymeric implant has been developed to solve the problem of penetration of blood brain barrier and severe systemic toxicity. This study was performed to prepare 5-FU-loaded poly (L-lactide-co-glycolide) (PLGA) wafer fabricated microparticles prepared by two different method and to evaluate their release profile for the application of the treatment of brain tumor. 5-FU-loaded PLGA microparticles were characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), and differential scanning calorimetry (DSC). SEM observation of the 5-FU-loaded PLGA microparticles prepared by rotary solvent evaporation method showed that 5-FU was almost surrounded by PLGA and significant reduction of crystallinity of 5-FU was confirmed by XRD. In case of release profile of 5-FU from 5-FU-loaded PLGA wafer fabricated microparticles prepared by mechanical mixing, the release profile of 5-FU followed near first order release kinetics. In contrast to the above result, release profile of 5-FU from 5-FU-loaded PLGA wafer fabricated microparticles prepared by rotary solvent evaporation method followed near zero order release kinetics. These results indicate that preparation method of the 5-FU-loaded PLGA microparticles to fabricate into wafers was contributed to drug release profile.

Developing Pattern Identification Questionnaire of Allergic Rhinitis (알레르기 비염의 변증을 위한 설문문항 개발)

  • Kim, Min-Hee;Yun, Young-Hee;Ahn, Jin-Hyang;Ko, Seoung-Gyu;Choi, In-Hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.30 no.2
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    • pp.112-125
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    • 2017
  • Objectives : The prevalence of allergic rhinitis (AR) is 10-40% worldwide and there are many demands for Traditionl Medicine (TM) treatment for AR. Pattern identification (PI) is essential process in diagnosis and treatment of TM, however, objective assessment measurement for PI of AR in TM is lacked. Methods : PI questionnaire for AR was developed in 2008 by specialists in the department of Otolaryngology of TM, based on systemic and nasal symptoms and signs. However, that questionnaire had many problems in application to clinical practice and has since been revised based on several studies and delphi method. Consequently, the PI questionnaire for AR version 3.0 has been developed. Results & Conclusions : This questionnaire classifies patients with AR as possessing lung-heat, lung-cold, or spleen qi deficiency based on nasal symptoms and general conditions of AR patients. This is first questionnaire for pattern identification of AR. We plan to conduct a validation and reliability study, and revise the questionnaire based on the results of this study.

Analysis on the Trade Adjustment Assistance Program and the Case Study (무역조정지원(貿易調整支援) 사례(事例)에 관한 연구(硏究))

  • Lee, Ki-Hwan
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.37
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    • pp.277-327
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    • 2008
  • This paper is to provide for an analysis on the trade adjustment assistance program and the Case study affected by international trade and FTA. The paper offers a legal study on analysis about Korea's Trade Adjustment Assistance Law for the Manufacturing Industries, USA's TAA. and Japan's law for Industry revival. In general, USA's TAA measures are defined as assistance actions for business enterprises, farmers and manufacturing industries workers. We exclude farmers and fishermen under Korea's Trade Adjustment Assistance Law for the Manufacturing Industries's business enterprises and workers, but we give them the systemic supports under korea's special assistance law for the farmers and fishermen and so on after FTA. Especially this focuses on the trade adjustment assistance case about both Korea's agriculture-farmer assistance from FTA and USA's TAA from workers in layoffs of trade-impacted communities. Korea has provided TAA to the sphere of agriculture after special legislation in Korea-Chile helping closed orchard, modernizing high quality producing facility for agriculture competition, producing superior fruit saplings, and constructing the distribution center in the producing district. But for US-Korea FTA and rapid increase of import by FTA expansion, we must prepare such indemnity systems for loss as cash benefit and wider aids for closed farm. The USA's TAA program targets manufacturing workers affected by international trade, who may have fewer transferable skills and face greater challenges to reemployment than other dislocated workers. A large majority sought some assistance from their one-stop center. Relatively small numbers chose to enroll in training, but those who did it often used this opportunity to chart a new career path. Finally, we learned the importance of education and discipline from USA cases. The fast and accurate information providing can raise efficiencies. The infrastructure can maximize the effect of TAA. The effective application would help us get over difficulties of TAA at hand.

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Microemulsion-based hydrogels for enhancing epidermal/dermal deposition of topically administered 20(S)-protopanaxadiol: in vitro and in vivo evaluation studies

  • Kim, Ki-Taek;Kim, Min-Hwan;Park, Ju-Hwan;Lee, Jae-Young;Cho, Hyun-Jong;Yoon, In-Soo;Kim, Dae-Duk
    • Journal of Ginseng Research
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    • v.42 no.4
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    • pp.512-523
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    • 2018
  • Background: 20(S)-Protopanaxadiol (20S-PPD) is a fully deglycosylated ginsenoside metabolite and has potent dermal antiaging activity. However, because of its low aqueous solubility and large molecular size, a suitable formulation strategy is required to improve its solubility and skin permeability, thereby enhancing its skin deposition. Thus, we optimized microemulsion (ME)-based hydrogel (MEH) formulations for the topical delivery of 20S-PPD. Methods: MEs and MEHs were formulated and evaluated for their particle size distribution, morphology, drug loading capacity, and stability. Then, the deposition profiles of the selected 20S-PPD-loaded MEH formulation were studied using a hairless mouse skin model and Strat-M membrane as an artificial skin model. Results: A Carbopol-based MEH system of 20S-PPD was successfully prepared with a mean droplet size of 110 nm and narrow size distribution. The formulation was stable for 56 d, and its viscosity was high enough for its topical application. It significantly enhanced the in vitro and in vivo skin deposition of 20S-PPD with no influence on its systemic absorption in hairless mice. Notably, it was found that the Strat-M membrane provided skin deposition data well correlated to those obtained from the in vitro and in vivo mouse skin studies on 20S-PPD (correlation coefficient $r^2=0.929-0.947$). Conclusion: The MEH formulation developed in this study could serve as an effective topical delivery system for poorly soluble ginsenosides and their deglycosylated metabolites, including 20S-PPD.

A Study on Legislation for the Improvement of the Marine Environment and Safety Act for Deep Sea Drilling (심해 시추와 관련된 국내 해양 환경 및 안전 관련법 개선에 대한 입법론적 연구)

  • Hong, Sung-Hwa;Lee, Chang-Hee
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.23 no.1
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    • pp.73-82
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    • 2017
  • This study is focused on concepts and types of drilling investigating the scope of activity and problems the application of marine environment and safety acts related to deep-sea drilling for the development of the continental shelf in Korea. For the systemic development of subsea mineral resources, this study suggest a legislative proposal for the establishment of a separate law based on the UK Offshore Installation (Safety Case) regulation and improvement of the marine environment management act, maritime safety act and oil & mining safety regulation. Specially, this study emphasized on the necessity of establishing education, training and evaluation system according to the international certification training for the domestic work force based on accident cases related to overseas offshore plants.