• Title/Summary/Keyword: Lee Sam

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A Study on the Influence of Job-Embeddedness to Innovation Behavior in the convergence age (융·복합 시대의 직무 임베디드니스가 혁신행동에 미치는 영향에 관한 연구 - 직무의미성의 조절효과를 중심으로 -)

  • So, Byung-Sam;Lee, Sun-Kyu;Kang, Eun-Gu;Kim, Yuen-Kyu;Ku, Seong-Deug;Choi, Byung-Chul
    • Journal of Digital Convergence
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    • v.13 no.7
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    • pp.57-67
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    • 2015
  • Recently corporations are faced with the age of convergence technology, so manny corporations recognize the importance of human resources. Therefore, the organization has attracted and remained the necessary human resources to continued growth. Accordingly, This study investigated the impacts of Job embeddedness on Innovation Behavior. In addition, examined the moderating effects of Job Meaning. As a result, Job Embeddedness positively affected to Innovation Behavior, the moderating effect of Job meaning had significant effected. This research provides; 1) When the relationship is maintained stably, the organization's innovation is promoted. 2) Job meaning with individuals can enhance the innovation.

The Effects of Surfactants on the Biosynthesis of Galactolipid and the Composition of Fatty Acids in Chloroplast Envelope rind Thylakoid Membrane of Chlorella ellipsoidea

  • Choe, Eun-A;Cheong, Gyeong-Suk;Lee, Cheong-Sam
    • Animal cells and systems
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    • v.2 no.3
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    • pp.341-349
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    • 1998
  • To analyze the effects of surfactants on the biosynthesis of galactolipid and the composition of fatty acids, the chloroplast envelope and thylakoid membrane were cultivated in medium treated with anionic surfactants, such as linear alkylbenzene sulfonate (0.002%, LAS), a-olefin sulfonate (O.01%, AOS), and sodium lauryl ether sulfate (0.08%, SLES), respectively. During the cultivation, the chloroplast envelope and thylakoid membrane were isolated from the cells collected at the early and middle phase of the culture and the contents of their fatty acid composition were compared with the control. When treated with surfactants, the contents of total lipid MDGD methylesters, and DGDG methylesters decreased significantly when compared with the control. It was also confirmed that more unsaturated fatty acids were involved in the biosynthesis of galactolipid. The fatty acids utilized in the biosynthesis of MGDG were in the chloroplast envelope and in the control, and linoleic acid in LAS, linolenic acid and oleic acid in AOS, and linolenic acid and oleic acid in SLES. The fatty acids in the biosynthesis of DGDG were linolenic acid and oleic acid in the control linolenic acid and stearic acid in LAS, oleic acid and linolenic acid in AOS, oleic acid and linolenic acid in SLES. In the thylakoid membrane, the major fatty acids in the biosynthesis of MGDG were linolenic acid and oleic acid in the control, oleic acid and linolenic acid in LAS, linolenic acid and linoleic acid in AOS, linolenic acid and palmitoleic acid in SLES. The fatty acids in the biosynthesis of DGDG were linolenic acid and oleic acid in the control, oleic acid and linolenic acid in LAS, linolenic acid and linoleic acid in AOS, palmitoleic acid and oleic acid in SLES.

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Synergistic Effect of Carboxymethyl Chitosan and Adipose-Derived Mesenchymal Stem Cells on Osteoarthritis Model in Rabbits

  • Kim, Ji-Hun;Yun, Sungho;Seo, Min-Su;Bae, Seulgi;Jang, Min;Ku, Sae-Kwang;Kwon, Young-Sam;Lee, Hae Beom
    • Journal of Veterinary Clinics
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    • v.37 no.5
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    • pp.261-269
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    • 2020
  • The purpose of this study is to investigate the clinical effects of carboxymethyl chitosan (CMC) and adipose-derived mesenchymal stem cells (MSCs) on osteoarthritis (OA). Thirty New Zealand white rabbits were used as cranial cruciate ligament transection and partial meniscectomy models. The rabbits were divided into five groups (n = 6) according to the intra-articular injection materials: the control group with PBS, the HA group with hyaluronic acid, the CMC group with CMC, the MSC group with MSCs emerged in PBS, and the MSC+CMC group with CMC and MSCs. Knee thickness, extension angle, gross morphology, histopathology and immunohistochemistry were performed to evaluate the effects of CMC and MSCs on rabbit OA. On the morphologic and histologic examination, the articular surfaces of the femur and tibia were markedly damaged in control group with higher Mankin score and lower cartilage surface thickness. However, OA related cartilage defects were alleviated by the treatment of MSC and/or CMC. The expressions of apoptotic and inflammatory cytokines were decreased and cartilage extracellular matrix (ECM) related collagens I and II were enhanced by the treatment of MSC and/or CMC. In conclusion, this study showed that CMC and MSC treatments have a beneficial effects on OA via the protection of cartilage damage, the stimulation of ECM, and the inhibition of inflammatory and apoptotic reaction.

The Terminal and Internal Hairpin Loops of the ctRNA of Plasmid pJB01 Play Critical Roles in Regulating Copy Number

  • Kim, Sam Woong;Jeong, In Sil;Jeong, Eun Ju;Tak, Je Il;Lee, John Hwa;Eo, Seong Kug;Kang, Ho Young;Bahk, Jeong Dong
    • Molecules and Cells
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    • v.26 no.1
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    • pp.26-33
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    • 2008
  • The plasmid pJB01, a member of the pMV158 family isolated from Enterococcus faecium JC1, contains three open reading frames, copA, repB, and repC. Plasmids included in this family produce counter-transcribed RNA (ctRNA) that contributes to copy number control. The pJB01 ctRNA, a transcript which consists of 54 nucleotides (nts), is encoded on the opposite strand from the copA/repB intergenic region and partially overlaps an atypical ribosome binding site (ARBS) for repB. The ARBS is integrated by the two underlined conserved regions: 5'-TTTTTGTNNNNTAANNNNNNNNNATG-3', and the ctRNA is complementary only to the 5' conserved sequence 5'-TTTTTGT-3'. This complementary sequence is located at a distance from the terminal loop of the ctRNA secondary structure. The ctRNA structure predicted by the mfold program suggests the possible generation of a terminal and an internal hairpin loop. The amount of in vitro translation product of repB mRNA was inversely proportional to the ctRNA concentration. Mutations in the terminal and internal hairpin loops of the ctRNA had inhibitory effects on its binding to the target mRNA. We propose that the intact structures of the terminal and internal hairpin loops, respectively, play important roles in forming the initial kissing and extending complexes between the ctRNA and target mRNA and that these regulate the copy number of this plasmid.

The Kinematic Analysis of the Last Stride landing and Release Phase in the Women Javelin (여자 창던지기 도움닫기 최종 1보 착지와 릴리즈 국면의 운동학적 분석)

  • Hong, Soon-Mo;Lee, Young-Sun;Kim, Tea-Sam
    • Korean Journal of Applied Biomechanics
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    • v.14 no.1
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    • pp.51-63
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    • 2004
  • The purpose of this study was to investigate a three dimensional kinematic variables about the last stride and the release phase of the throwing technique for female javelin throwers. For the motion analysis, Six female javelin throwers were used as subjects. Three-dimensional coordinates were collected using the Kwon3D Motion Analysis Package Version 2.1 Program. Two S-VHS Video Cameras were used to record the locations and orientations of control object and the performances of the subjects at a frequency of 6.0 HZ. After the kinematic variables such as the time, the distance, the velocity, and the angle were analyzed about the last stride and release phase, the followings were achieved; 1. For the effectively javelin throwing, the subjects appeared to do long the approach time in the phasel of landing phase, and short the delivery time in release phase 2. In the release event, the other subjects except for subject A appeared to throwing in the lower condition than the height of themselves. This result showed to slow the projecion velocity. 3. For increase the projection vcelocity of the upper extremity joint in the release event, it appeared to do extend rather the shoulder angle than increase the extension of elbow joint. 4. The body of COG angle showed to gradually increase nearly at the vertical axis in the release event. But the front lean angle of trunk showed a small angle compare to increase of the body of COG angle. Therefore for the effectively momentum transmission of the whole body in the javelin, the front and back lean angle of trunk appeared to do fastly transfer the angle displacement in the arch posture or the crescent condition during the deliverly motion of the release phase.

A Study on the Sandbar and Vegetation Area Alteration at the Downstream of Dam (댐 하류하천의 사주와 식생 면적 변화에 관한 연구)

  • Park, Bong-Jin;Jang, Chang-Lae;Lee, Sam-Hee;Jung, Kwan-Sue
    • Journal of Korea Water Resources Association
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    • v.41 no.12
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    • pp.1163-1172
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    • 2008
  • In this study, area variation, index and degree of alteration, temporal variation of the sandbar and vegetation were analyzed using aerial photographs during the pre and post dam construction at the downstream of dam. Analysis result of the sandbar area was decreased 17 %. Sandbar area was 38 % of the channel areas at the pre dam, but 21 % at the post dam. Alteration indies of the sandbar were $-0.9921{\sim}2.9528$. Analysis result of the vegetation area was increased 13 %. Vegetation area was 11 % of the channel areas at the pre dam, but 24 % at the post dam. Alteration indies of the vegetation were $-0.8908{\sim}12.0736$. Temporal variation of the sandbar and vegetation were analyized at the An Dong dam, Im Ha dam, Hap Chun dam. Analysis result of the sandbar was decreased $42,600m^2$ per year, but vegetation was increased $51,700m^2$ per year. Sandbar area was decreasing more fast than vegetation area increasing.

A Study on the Measures for Applying Standard Development Cost for the Revision of Development Charge System (개발부담금 개편을 위한 표준개발비용 적용방안 연구)

  • Lee, Sam-Su;Jeong, Da-Woon;Song, Young-Il
    • Land and Housing Review
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    • v.4 no.1
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    • pp.99-105
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    • 2013
  • Development Charge System was introduced in 1989 to recapture development gains, however, it has been revised more than 20 times since then. The reason for such frequent revisions was that estimating development cost was too composite and indefinite. Therefore it is required that estimating method of development cost should be simplified in order to minimize conflicts among diverse parties. To support the recent revision of 'Restitution and Development Gains Act', this study verified several alternatives of applying standardized costs per area under specific size of development and suggested policy implications. For analysis data, 9,362 Development Charge and cost data of si gun gu for recent 3 years were used. The results showed that dividing Seoul Metropolitan Area (SMA) and non-SMA made a significant difference and definite divisions among regional groups. The result of this study could minimize social conflicts as well as contribute in realizing the public concept of land policy by revising Development Charge System.

The Role of Public Developer in Urban Regeneration Projects

  • Lee, Sam-Su;Jeong, Kwang-Jin
    • Land and Housing Review
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    • v.8 no.2
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    • pp.59-71
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    • 2017
  • With the passing of Special Act on Promotion and Support for Urban Regeneration (will be hereafter referred to as the Urban Regeneration Special Act) in December 2013, urban regeneration projects have begun in full scale. 13 regions including Jongno District, Seoul were selected as the urban regeneration leading area in 2014 and 33 regions as urban regeneration general regions in 2015 to push ahead a nationwide urban regeneration front supported by government funds. However, it is not clear if these urban regeneration projects will be revitalized by the sole means of government's financial support. Above all, cooperation among all interested parties including the central government that is propelling urban regeneration, local governments, state corporations, private entities, and citizens is urgent. In an urban regeneration project, delegation between state and private entities is absolutely crucial. The central government and the pertinent local government must provide their support by forming new policies and repairing old institutions that are right for urban regeneration, securing the necessary subsidy, and outsourcing government-owned land development. A state corporation must play its part in every aspect that requires public character such as an overall project management of an urban regeneration project, cooperation with the local government, and infrastructure installation. The private stakeholder must share his private capital and know-hows as a construction investor and a development businessman to make possible a successful urban regeneration project. In order for these public and private entities to cooperate with one another, it is necessary to reestablish the role of a public developer and contemplate running an urban regeneration project that permeates public character through a public developer.

Depression Factors of Adult Women in a Marine City (일 해양도시 성인여성의 우울영향요인)

  • Go, Hyun-Nam;Lee, Sam-Soon;Kim, Min-Ja
    • The Journal of the Korea Contents Association
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    • v.20 no.1
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    • pp.684-691
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    • 2020
  • This study was attempted to provide basic data for health promotion program for depressive relief by grasping the degree of depression of adult women and grasping the factors affecting depression. Data were collected using structured questionnaire for 249 adult women in the one marine city and analyzed through technical statistics, Pearson correlation coefficients and multiple regression analysis. According to the study, 76.3 percent (190 people) of women in the city were depressed. The subjects who expressed depression showed negative correlations with social support, self-respect and subjective euphoria and between depression and stress as positive correlation. The result of multiple regression analyses to identify the effects of depression have shown that stress is a major influencing factor, and this model has a 21.1% explanatory power. Therefore, the study found stress as a significant factor in the depression of adult women, it is necessary to develop and apply health promotion programs that can reduce stress in order to reduce depression in adult women.

The Effects of Balloon Blow-ups and Upper Abdominal Exercise on Respiratory Rehabilitation (풍선불기와 상복부운동이 호흡재활에 미치는 영향)

  • Lee, Sam-Cheol;Sin, Seung-Ho;Jung, Jae-Youn;Oh, Sang-Boo;Kim, Sang-Ho;Kim, Bong-Hwan;Son, Kyung-Hyun
    • Journal of Korean Physical Therapy Science
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    • v.18 no.3
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    • pp.17-24
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    • 2011
  • Background : Pulmonary rehabilitation, called pulmonary rehab or PR, is a broad program that helps improve the well-being of people who have chronic (ongoing) breathing problems. Purpose : The purpose of this study was to demonstrate the effects of the upper abdominal exercise and balloon blow-up on the abdominal muscle strength and Respiratory ability for 20's adults. Method : Recruited Subjects were healthy students attending H university. Twenty-one subjects who agreed to participate in this study were randomly assigned to 3 groups; I group applied upper abdominal exercise, IIgroup applied balloon blow-up, III group applied both upper abdominal exercises and balloon blow-ups. Upper abdominal muscle exercises was applied supine position and $30^{\circ}{\sim}40^{\circ}$ in the upper body lift braced for about 3 seconds, and balloon blow-ups was performed 10 times a day. The exercise programs were performed three times a week for 5 weeks. Results: After 5 weeks of exercises, all three groups were comparable with abdominal muscle strength and respiratory ability. Subjects in upper abdominal exercise group, balloon blow-ups group, and upper abdominal exercises and balloon blow-ups group had significantly increased the average of abdominal muscle strength(p<.05) The statistical comparison among the groups indicated that there was a signigicant increase in respiratory ability. In comparison of abdominal muscle strength and respiratory ability, there were no significant differences among 3 groups. Conclusions: These findings suggest that upper abdominal exercises and balloon blow-ups may have a significant impact in abdominal muscle strength and respiratory ability.

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