• Title/Summary/Keyword: second order effects

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Land Value Analysis Using Space Syntax and GWR (공간구문론 및 지리적 가중회귀 기법을 이용한 지가분석)

  • Kim, Hye-Young;Jun, Chul-Min
    • Journal of the Korean Association of Geographic Information Studies
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    • v.15 no.2
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    • pp.35-45
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    • 2012
  • Existing studies on land values tend to show the use of simple euclidean distances as the accessibility variable and OLS as the analysis method. However, applying such euclidean distance-based accessibility to dense CBD areas has limitations in the incorporating the characteristics of network structure whereas using OLS, the typical method for non-spatial data, tends to exclude spatial effects of spatial data. In this study, we analyzed land values focusing on the revised accessibility variables and the analytical technique that can include spatial effects. First, we adopted space syntax theory in order to consider not simple shortest distances along the streets but distances based on street network structure. Second, we compared OLS with GWR that includes spatial effects. Third, we used different size grid-cells for the spatial units considering MAUP theory and applied them to Gangnam-gu area. Each cell was analyzed for overall influence of independent variables using OLS, and coefficients were presented by GWR which enables local analysis and visualization. As a result, we found that suggested accessibility variables have a meaningful effects for land value analyses, and we were able to verify that GWR produces improved results compared to OLS. Also, we observed that the resulting values vary depending on the sizes of spatial units.

Fermentation process increased antimutagenic and in vitro anticancer effects during Kochujang manufacturing (고추장 제조시 발효가 항돌연변이 및 in vitro 항암효과에 미치는 영향)

  • Kim, Ji-Young;Liu, Fang-Fang;Lim, Yaung-Iee;Park, Kun-Young
    • Food Science and Preservation
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    • v.21 no.6
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    • pp.878-884
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    • 2014
  • Increased antimutagenic and in vitro anticancer effects were observed by the fermentation process during Kochujang manufacturing. In order to confirm the increased functionality, wheat grain, first fermented wheat grains (FFWG), second fermented wheat grains (SFWG), final fermented wheat grains (FiFWG), red pepper powder (RPP), and commercial Kochujang (CK) were prepared. Kochujang manufactured with final fermented wheat grains and red pepper powder were further fermented for 15 days and 30 days. The antimutagenic effects were determined by counting the number of revertants in Salmonella Typhimurium TA100 against N-methyl-N'-nitro-nitrosoguanidine (MNNG, 1.0mg/mL). The final fermented wheat grains (52% inhibition) showed higher antimutagenic effects than the wheat grain (34%), and the commercial Kochujang showed the highest antimutagenic effects (55%). We tested the inhibitory effect on the growth of HT-29 human colon carcinoma cells and AGS human gastric adenocarcinoma cells by using MTT (3-(4,5-dimethyl-thiazol)-2,5-diphenyltetrazolium bromide) assay. The results showed that increased fermentation process continually increased the growth inhibitory effect on both cancer cells. The further fermentation for 15 days of the Kochujang product also increased inhibitory growth of the AGS cancer cells. In conclusion, the methanol extract from fermented wheat grains and commercial Kochujang showed sequentially increased antimutagenic and in vitro anticancer activity, and thus the final commercial Kochujang revealed the highest effect.

A study about factors influencing on internet advertising effects -Focus on consumer characteristics- (인터넷 의류광고 태도에 미치는 영향요인 연구 -소비자특성 중심으로-)

  • Ko, Eun-Ju;Mok, Bo-Kyoung
    • Journal of Global Scholars of Marketing Science
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    • v.7
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    • pp.283-302
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    • 2001
  • The purpose of this study was to examine the current situation about the internet usage and advertisement attitude, to investigate the relationship between consumer characteristics and internet advertising effect, and to identify the moderating effect of consumer characteristics on the relationship between advertising types and advertising effects. For the study, a sample of 152 apparel consumers participated in this survey research. The survey of design with a questionnaire was employed. Questionnaire was developed with the html language and data collection was done at Korea though the internet on October 2000. For data analysis, descriptive statistics (i.e., frequency, percent), ANOVA with duncan tests were used. First, the major place of using internet was found as home, company, school, PC room in order and the average time of using internet was found as three times weekly. The major purpose of using internet were information search, e-mail, PC communication and program-download. The experience of internet fashion advertising was high. Second, consumer characteristics(age, job) had significant effects on attitude to the product. 20 years-old age group and specialist group were found to influence on the higher attitude toward product. Third, main effects of consumer characteristics(age, job) were found to be significant. The correlation and interaction effects of consumer characteristics and internet advertisement types were not significant.

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The intellectual property factors affecting R&D outcome (연구개발성과에 영향을 미치는 지식재산요인)

  • Lee, Jae-Heon;Cho, Keun-Tae;Lee, Seong-Sang
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.203-213
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    • 2014
  • The purpose of this research is to deduce the effects factor of R&D output and outcome in the aspect of the researcher's intellectual property capacity, and conduct an empirical analysis to see if there is intermediated effect between cooperation of a patent attorney and output. I applied three step, input (researcher's intellectual property capacity and intellectual property environment), output (number of patent and SCI paper), outcome (number of technology transfer, profit), and analyzed the effects of researcher's intellectual property factors on output and outcome through structural equation model. The results are as follows. First, there's no cooperation between a researcher and patent attorney, the researcher's knowledge on patent specification had direct effect on the output. Second, a researcher and an patent attorney cooperate, the cooperative activities have complete mediation effect on the output, and the researcher's will to commercialize the technology has direct effects on the output. Third, the intellectual property environment of the research organization gives direct effects on the researcher's intellectual property capacity, and gives indirect effects on the outcome. this study suggest that it is important to cooperate with external experts in order to excellent R&D outcome.

A Structural Model for Aquatic Exercise Adherence of Patients with Arthritis (관절염 환자의 수중운동 지속에 관한 구조 모형)

  • Kang, Hyun-Sook
    • Journal of muscle and joint health
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    • v.8 no.1
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    • pp.5-26
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    • 2001
  • Many studies have reported that regular aquatic exercise can lead to improvement of health for patients suffering from arthritis. In spite of these benefits, the adherence rate has shown as few as 26% of patients with arthritis who had completed the aquatic exercise education program. Moreover, when patients with arthritis begin an aquatic exercise, 47% withdraw within the first 6 month. No study has been found that constructs model to explain aquatic exercise adherence of patients with arthritis. The purpose of this study were to identify the factors influencing exercise adherence and to construct and test a structural model to explain aquatic exercise adherence of patients with arthritis. Hypothesized model was constructed on the basis of Bandura's social cognitive theory and literature review. Exogenous latent variables included in this model are group cohesion and barrier, endogenous latent variables are self-efficacy, outcome expectancy and self-evaluation. Empirical data used was collected through individual interviews with the structural questionnaire on 249 patients with arthritis who had completed the 6-week aquatic exercise education program of Korean Rheumatology Health Professionals Academy. The interviews were performed from September 6, 1999 through October 8, 1999. A model tested by the covariance structural analysis with LISREL 8.12a program and by descriptive statistics and correlation with SAS 6.12 program. The results are summarized as follows: First, hypothesized model showed a good fit to the empirical data. In the modified model added one new path showed a much better fit. Second, group cohesion had a direct, indirect positive effects, self-efficacy and self evaluation had a direct positive effects on exercise adherence. Barrier had a direct, indirect negative effects on exercise adherence. Outcome expectancy had a direct negative effect, indirect positive effects through self-evaluation on exercise adherence, but total effects was not significant. Total effect size of the variables were group cohesion, self-efficacy, barrier and self evaluation in order. All variables accounted for 54% of the total variance of exercise adherence in the model. In conclusion, this model confirmed to be proper in explaining of aquatic exercise adherence. Group cohesion, self-efficacy, outcome expectancy, self-evaluation, barrier contributed to the aquatic exercise adherence of patients with arthritis. The results of this study suggested that improvement of group cohesion, self-efficacy and self-evaluation, motivation of outcome expectancy through self-evaluation, and reduction of the barrier should be included in the strategy of nursing intervention for the aquatic exercise adherence of patients with arthritis.

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Elderly Suicide and It's Related Factors : Focused on the Role of Social Support and Mastery in the Effects of Hopelessness and Depression on Suicidal Ideation (노인 자살관련 요인: 무망감과 우울증이 자살생각에 미치는 영향에 대한 사회적 지지와 자아통제감의 효과를 중심으로)

  • Eom, Tae-Wan
    • Korean Journal of Social Welfare
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    • v.59 no.2
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    • pp.355-379
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    • 2007
  • This study examined the role of social support and mastery in the effects of hopelessness and depression on suicidal ideation in order to identify elders' suicide and it's related factors. Especially, it focused to find out whether the hopelessness excluding depression has an independent effect on elders' suicidal ideation, and psychosocial factors such as social support and mastery has an interaction effects with elders' hopelessness variables and depression on suicidal ideation. This study recruited 297 elders over 65(older persons in the elder education programs of senior welfare center in Masan, Changwon and Jinhae) and employed a self-administered survey method during January, 2007. The following are the major results of the study. First, the level of hopelessness, depression and suicidal ideation related elders' suicide indicated differences according to their educational level, marital state, income, and their chronical disease numbers. Especially, the lower income and higher chronical disease numbers showed higher level of hopelessness, depression and suicidal ideation among the elder subjects. Second, interaction effects of social support and depression were significant in suicidal ideation, the more level of social support in elder' subjects, the lower the suicidal ideation. While, interaction effects of social support and hopelessness, and mastery and depression/hopelessness in suicidal ideation were not statistically significant. Third, psychosocial factors such as social support and mastery on elders' suicidal ideation have a significant effect when other relevant variables are controlled. From these results, hopelessness is other significant factor predicting suicidal ideation(suicide) among elders. Also, social support and mastery is very significant factor influencing to prevent or decrease suicidal ideation among elders.

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The Relationship between Stress and Suicidal Ideation for Old Adult Living Alone -Multiple Mediator Effects of Self-criticism and Feelings of Loneliness, and the Moderating Effects of Social Support- (독거노인의 스트레스와 자살생각 간의 관계 -자기비판, 고독감의 다중매개효과와 사회적 지지의 조절효과-)

  • Park, Bonggil;Song, Inseok
    • Korean Journal of Social Welfare
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    • v.66 no.2
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    • pp.51-74
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    • 2014
  • This study aimed to examine a multiple mediator model in which stresses affect self-criticism. The self-criticism, in turn seemed to affect the feelings of loneliness, and this had an effect on over 65 years living alone. Furthermore, whether social support had any moderating effects in the pathway from the loneliness to suicidal ideation on our pass model were also investigated. Data were collected from 572 samples of persons 65 years of age and older living alone in Seoul. For the analyses of the mediating effects and moderating effects, structural equation modeling was used. The results were as follows. First, the pass model was identified to fit the observed data. This mean that self-criticism increased as stress rises, the increased levels of self-criticism increased loneliness, and the increased levels of loneliness increased the levels of suicidal ideation. Second, social support moderated the relation between loneliness and suicidal ideation on our model. These results suggested that interventions which deal with loneliness and suicidal ideation were needed, in order to reduce suicidal ideation caused by the stress. These imply, additionally, that when social workers try to reduce the suicidal ideation, they should consider the levels of social support at work as influences.

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Validation of a Path Model for Subjective Happiness of Nursing Students (간호대학생의 주관적 행복감 경로모형 분석)

  • Kwon, Young-Chae;Jeong, Chu-yeong;Seo, Young-sook
    • Journal of Digital Convergence
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    • v.16 no.1
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    • pp.197-206
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    • 2018
  • This study examined the fitness of a path model for the relationship among self-esteem, social support, self-efficacy, major satisfaction, and subjective happiness in nursing students. The subjects consisted of 416 nursing students, and data were collected during from 10 March to 10 April, 2017, through self-report questionnaires. The data were analyzed with descriptive statistics and Pearson's correlations that used PASW 21.0, and AMOS 18.0. The result of this study can be summarized as follows. There were correlation self-esteem, social support, self-efficacy, major satisfaction, and subjective happiness of in nursing students. Second, There were self-esteem, social support, self-efficacy, and major satisfaction showed direct effects on subjective happiness in nursing students, while self-esteem, social support, and self-efficacy showed indirect effects on subjective happiness in nursing students. Third, self-esteem, social support, and self-efficacy showed direct effects on major satisfaction in nursing students, while self-esteem, and social support showed indirect effects on major satisfaction in nursing students. Self esteem, and social support showed direct effects on self-efficacy in nursing students. The hypothetical path model for subjective happiness of nursing students was proven correct. Based on the outcomes of this study, it is necessary to design an intervention program that emphasizes the enhancement of self-esteem, social support, and self-efficacy in order to subjective happiness of nursing students.

A Study on the Effects of Social Support on Career Maturity and Self-reliance of Inmates of a Juvenile Reformatory (사회적 지지가 소년원 내 남자청소년의 진로성숙과 자립 의지에 미치는 영향에 대한 연구)

  • Kim, Nayeong;Bae, Imho
    • Korean Journal of Social Welfare Studies
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    • v.49 no.2
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    • pp.233-256
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    • 2018
  • The purpose of this study was to investigate the effects of social support on career maturity and self-reliance of inmates in a juvenile reformatory. This survey was administered to the adolescents in S juvenile reformatory, which represents juvenile reformatory across the nation. Statistical analysis were performed using SPSS 22.0 for 115 complete responses. Results are as follows: First, the effects of social support on career maturity was found to be statistically significant, $R^2=.411$, p<.001. That is, support by friends and religious program personnel remained a significant influence on career maturity, after controlling for sociodemographic variables. Second, the effects of social support on self-reliance was also found to be statistically significant, $R^2=.520$, p<.001. It was shown that the support of friends and family as dependent variables, had statistically significant effects on self-reliance. The results of this study suggest the need to expand programs that reinforce support by friends, a meaningful variable, along with the need to seek and link available resources within the local community in order to build social support systems. It is also necessary to establish education and related organizations to provide effective socail support.

The Effects of Entrepreneurial Self-efficacy on Entrepreneurship of University Students: Moderating Effects of Entrepreneurial Education and Career Uncertainty (예비창업자의 창업효능감과 기업가정신의 관계: 창업교육 및 진로불확실성의 조절효과를 중심으로)

  • Park, JaeChun;Kim, JuSeob
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.3
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    • pp.27-38
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    • 2019
  • Recently, domestic universities have emphasized career path to start-up through entrepreneurial self-efficacy (ESE) and entrepreneurship. The purpose of this study is to investigate the effect of ESE on entrepreneurship of university students. Also we examine the moderating effects of entrepreneurial education and career uncertainty between ESE and entrepreneurship. Research sample consisted of 236 university students in Cheonan city. The results of this research is as follows: First, ESE showed a positive effects on entrepreneurship. Second, the moderating effect of entrepreneurial education was significant on the relationship between ESE and entrepreneurship. In other words, university students with a higher entrepreneurial education showed higher entrepreneurship when ESE was lower. But students with a lower entrepreneurial education showed higher entrepreneurship when ESE was higher. Finally, the interaction effects of career uncertainty was confirmed in relationship between ESE and entrepreneurship. In other words, university students with a higher career uncertainty showed higher entrepreneurship when ESE was higher. But students with a lower career uncertainty showed higher entrepreneurship when ESE was lower. In order to improve the entrepreneurship of the pre-founders, it is necessary to strengthen the behavior control of university students by enhancing the ESE. Also, the improvement of entrepreneurship of pre-founders should strengthen the ESE of university students, and should complement systematic and effective entrepreneurship education. In particular, we should provide the stability for career decision by eliminating uncertainty about the career path of university students.