• Title/Summary/Keyword: university activities

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The Effects of Creative Hands-on Activities using Effective Microorganisms on Elementary School Students' Environmental Literacy (유용미생물을 활용한 창의적 체험활동이 초등학생들의 환경소양에 미치는 영향)

  • Hwang, Young-Ho;Park, Jae-Keun
    • Journal of Korean Elementary Science Education
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    • v.33 no.3
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    • pp.524-535
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    • 2014
  • The purpose of this study was to develop the creative hands-on activities using EM (effective microorganisms) that can enhance the environmental literacy of learners, and to examine the effect of its application. The program was composed of 10 sessions, including biological knowledge and ecosystem status of microorganisms, practical activities that stimulate the environmental behavior and emotion of elementary school students, and career design related to their aptitude and occupation in future. This program can also be connected to the domains of creative hands-on activities, that is, career activities, club activities, self-regulated activities and voluntary service activities. In this study, two classes of 3th grades of elementary school in Seoul were selected and divided into two groups. The experimental group to undergo the program of creative hands-on activities using EM showed higher environmental literacy than the control group. In the concrete, it is proven that this program contributed to the improvement of learners' environmental emotion, skill, and behavior. When interviewed with experimental group, we found that sustained EM hands-on activities were conducted in collaboration with their families, and they became more aware of the utilities of EM and could participate in the activities more interestingly. In conclusion, the creative hands-on activities program was very effective and helped elementary students to change their environmental literacy in positive ways.

Biological Activities of Lysimachiae Herba I. -Effects of the Pretreatment of Lysimachiae Herba on the Enzyme Activities in Galactosamine-intoxicated Rats- (금전초(金錢草) 성분의 생리활성 I. -금전초의 추출분획의 전처리가 갈락토사민 중독 흰쥐의 대사효소활성에 미치는 영향-)

  • Kim, Hoe-Young;Kim, Soon-Shin;Lee, Chung-Kyu;Choi, Jong-Won
    • Korean Journal of Pharmacognosy
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    • v.27 no.1
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    • pp.58-64
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    • 1996
  • Pretreatment of the methanolic extract(250-500mg/kg, p.o., two weeks) of Lysimachiae Herba prevented the elevation of ALT and AST activities in galactosamine(GalN, 400 mg/kg, i.p.) intoxicated rats. Its five fractions, especially the ethyl acetate fraction, also showed significant preventing actions on damaged liver metabolizing enzyme functions by GalN intoxication.

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Pharmacology of Iridoid: Antimicrobial Activities of Aucubin

  • Lee, Eun-Sook;Ahn, Jung-Wook;Mar, Woong-Chon;Chang, Il-Moo
    • Korean Journal of Pharmacognosy
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    • v.17 no.2
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    • pp.129-133
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    • 1986
  • Antimicrobial activities of aucubin, an iridoid glycoside, were investigated. Gram-positive bacterium, S. aureus appeared to be more sensitive to aucubin's aglucone, aucubigenin than Gram-negative, E. coli did. Antimicrobial activities produced by aucubigenin may result in part from the inhibition of RNA and protein biosyntheses in bacterial cells. The conversion of aucubin iridoid glycoside into aucubigenin, an aglucone, appears to be a prerequisite step to exhibit the antimicrobial activities.

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Hepatoprotective Activities of Biologically Active Agents from Crude Drugs(I) -Hepatoprotective Activities of Traditional Korean Herbal Prescriptions- (식물성생리활성물질(植物性生理活性物質)의 간보호작용(肝保護作用)(I) -한약처방(韓藥處方)의 간보호작용(肝保護作用)-)

  • Kim, Chang-Johng;Cho, Seung-Kil;Choi, Chung-Sik;Choi, Yun-Suk
    • Korean Journal of Pharmacognosy
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    • v.21 no.3
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    • pp.223-234
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    • 1990
  • Hepatoprotective activities of 26 traditional Korean herbal prescriptions described in Donghibogam were evaluated in vivo and in vitro screening system. Twenty one prescriptions appeared to be active. Six prescriptions among them showed highly significant hepatoprotective activities; Shihogyegy-Tang(柴胡桂枝湯), Soshiho-Tang(小柴胡湯), Shiho plus Younggolmoryo-Tang(柴胡加龍骨牡蠣湯), Yinjinho-Tang(茵蔯蒿湯), Yinsam-Tang(人蔘湯) and Shashim-Tang(瀉心湯). Shihogyegy-Tang was most active. They reduced the release of transaminases from dissociated hepatocytes by thioacetamide, and serum transaminases and alkaline phosphatase activities of rat with carbontetrachloride-induced hepatitis. They inhibited significantly lipid peroxidation and cellular fatty change of liver by carbontetrachloride.

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The Antimicrobial Activities of some 1,4-Naphthalenediones (IV)

  • Ryu, Chung-Kyu;Kim, Dong-Hyun;Kim, Hee-Joeng;Chung, Sae-Young
    • Archives of Pharmacal Research
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    • v.16 no.4
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    • pp.327-330
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    • 1993
  • A series of 2-chloro and 2-bromo-3-(substituted)-1, 4-naphthalenedione derivatives (1-25) were tested for antifungal and antibacterial activities in vitro against Candida albicans 10231 aand Local, Aspergillus niger KCTC 1231, Tricophyton mentagrophytes KCTC 6085, Fusarium oxysporium KTCC 6501, Bacillus subtilis ATCC 6633, Pseudomonas arruginosa NCTC 10490, Staphylococcus aureus ATCC 6358p, Escherichia coli NIHJ and Acinetobacter baumanii Local. The MiC values were determined by twofold afar diution/streak method. Among thee derivatives, 1, 9, 20, 21, 23 and 25 showed more potent antifungal activities than fluconazole. 20 and 23 completely inhibited the gorwth of fungi, such as Candida albicans, Aspegillus niger, Ticophyton mentagrophytes and fusarium oxysporium, at $3.2\;\mu{g/ml}$. Also some derivatives had the antibacterial activities against Gram-positive bacteria.

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The Effect of Quality Circle Activities upon Quality Circle Performance and Business Performance (품질분임조 활동이 품질분임조 성과 및 기업의 경영성과에 미치는 영향)

  • Choi, Jin-Young;Lee, Sang-Chul;Kim, Kwang-Yong;Park, Sang-Chan;Suh, Yung-Ho
    • Journal of Korean Society for Quality Management
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    • v.39 no.2
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    • pp.188-198
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    • 2011
  • The purpose of this research is to identify the effect of quality circles activities upon quality circles performance and business performance. Empirical results indicate that quality circle activities influence on quality circles performance in both individual and enterprise level, Quality circles performance influences on not employment satisfaction but customer satisfaction, business performance (profitability and market values) of companies with quality circles is higher than that of companies without quality circles. In conclusion, quality circle activities influence on quality circles performance that effect on business performance.

Evaluation of corporate social responsibility activities for fashion company's sustainable management - On the moderating effects of consumers' perceived fit and motivation - (패션기업의 지속가능경영을 위한 CSR 활동의 평가 - 지각된 적합성과 동기의 조절효과를 중심으로 -)

  • Ju, Seong-rae;Chung, Myung-sun
    • The Research Journal of the Costume Culture
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    • v.23 no.4
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    • pp.644-660
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    • 2015
  • The social responsibility of fashion companies has become a crucial factor considering company image and awareness. Businesses have thus increased their CSR activities. However, few studies have shown clear and consistent results regarding the effectiveness of CSR activities. Therefore, this study focuses on the evaluation of the direct effect of CSR on trust and corporate reputation including its moderation by consumer's perceived fit and motivation. A total of 284 completed questionnaires were obtained from adult consumers in the fashion market with promotional leaflets for CSR activities as stimuli. The results were as follows. First, the dimensions for CSR activities were categorized as follows: Social welfare responsibility, environment protection, economic responsibility, social regulation compliance, customer protection, and culture and arts support. Further social regulation compliance, and economic and social welfare responsibilities positively affected corporate trust and reputation. Second, the main effect of perceived CSR activities and fit on corporate trust and reputation was significant, and the interaction effects of the social welfare, environment protection, and culture and arts support of CSR activities and fit were significant. Finally, the interaction effect of perceived CSR activities and motivation on corporate trust and reputation was not significant, but the main effect was significant. Implications of how to manage and enhance the effectiveness of CSR activities are offered.

A Study on Disease Characteristics, Psycho-social Factors and Treatment Behavior of Patients with Lupus (루푸스 환자의 질병특성, 심리사회적요인 및 치료 행태)

  • Kim, Myung-Ja;Kang, Hyun-Sook;Han, Sang-Sook
    • Journal of muscle and joint health
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    • v.9 no.1
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    • pp.40-52
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    • 2002
  • This study was conducted to describe disease characteristics, psycho-social factors and treatment behavior of patients with lupus and to analyze relationships anions these variables. The subjects were consisted of 120 lupus patients at G university hospital in Seoul. Data were collected by means of structured interview with questionnaires, and analyzed by using frequencies, $x^2$test, t-test, ANOVA, and correlation. The results were as follows; 1. The average age of the subjects was 31.34 years and average duration of suffering lupus was about 7.3years. Severity of symptoms was moderate and the disturbance of living activities was at the very low level. 2. Self-efficacy score of lupus patients was high, and life satisfaction was at moderate level. 3. Dosage for most of the subjects was about twice a day. 16.7% of them took non-prescribed medicine and only 27.5% perform exercise. 4. Positive correlation was shown among symptom, discomfort of living activities, self-efficacy and life satisfaction, while there was negative correlation among symptom and self-efficacy, symptom and life satisfaction, discomfort of living activities and self-efficacy, and discomfort of living activities and life satisfaction. In addition, exercise showed significant relationship with discomfort of living activities, and non-prescribed medicine showed significant relationship with discomfort of living activities and self-efficacy. These results show that lupus is a chronic disease of long suffering duration among young people. Severity of the symptom was at modest level, while discomfort of living activities were relatively insignificant. However self-efficacy was relatively high. Furthermore self-efficacy has influences on symptom and discomfort of life activities, just as exercise affects discomfort of life activities. Therefore it is required to examine further measures for continuous exercise.

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Anticoagulant activities of oleanolic acid via inhibition of tissue factor expressions

  • Lee, Won-Hwa;Yang, Eun-Ju;Ku, Sae-Kwang;Song, Kyung-Sik;Bae, Jong-Sup
    • BMB Reports
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    • v.45 no.7
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    • pp.390-395
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    • 2012
  • Oleanolic acid (OA), a triterpenoid known for its anti-inflammatory and anti-cancer properties, is commonly present in several medicinal plants but its anticoagulant activities have not been studied. Here, the anticoagulant properties of OA were determined by monitoring activated partial thromboplastin time (aPTT), prothrombin time (PT), fibrin polymerization as well as cell-based thrombin and activated factor X (FXa) generation activities. Data showed OA prolonged aPTT and PT significantly and inhibited thrombin catalyzed fibrin polymerization. In addition, OA inhibited the activities of thrombin and FXa and inhibited the generation of thrombin or FXa in human endothelial cells. OA also inhibited TNF-${\alpha}$-induced tissue factor expression on human endothelial cells. In accordance with these anticoagulant activities, OA showed an anticoagulant effect in vivo. These results indicate that OA possesses antithrombotic activities and suggest that daily consumption of a herb containing OA may be preventing thrombosis in pathological states.

The Relationship between Self-control Behavior, Social Comparison Attitude, Self-efficacy and Health Promotion Activities of College Students (대학생의 통제감, 사회비교추구성향 및 자기효능감이 건강행위에 미치는 영향)

  • Song, So-Hyeon;Jang, Youn-Kyoung;Kim, Joo-Hyung
    • Journal of Korean Public Health Nursing
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    • v.23 no.1
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    • pp.27-39
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    • 2009
  • Purpose: This study was conducted to evaluate the relationship between self-control behavior, social comparison attitude, self-efficacy and health promotion activities of college students who had health related majors (nursing, dental hygiene, health administration). Methods: The subjects consisted of 413 college students. Data were collected by self reported questionnaires that were designed to evaluate self-control behavior, social attitudes, self-efficacy and health promotion lifestyle (HPLP). Data were analyzed using the SPSS/PC win 14.0 program. Results: Upward & parallel comparison, self-efficacy and parents income were positively correlated with health promotion activities by college students. The most significant predictors of health promotion activities for college students were self-efficacy and self-control behavior. Conclusion: Health promotion activities for college students are influenced by self-efficacy, self-control behavior, and upward comparison. In conclusion, to increase the health promotion activities of college students, methods designed to increase self-efficacy should be prepared while considering the self-control behavior and comparative propensity towards others.