• 한국콘텐츠학회논문지
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• 제19권6호
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• pp.605-619
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• 2019

본 연구는 중학생이 지각한 학급풍토와 자기조절학습능력과의 관계에서 자기결정성동기의 매개효과를 검증하고자 하였다. 이를 위해 본 연구는 중학생 589명의 자료를 사용하여 지각된 학급풍토가 자기결정성동기를 매개로 자기조절학습능력에 미치는 구조방정식모형을 검증하였다. 연구결과 첫째, 중학생이 지각하는 자율지향적 학급풍토가 자기조절학습능력에 미치는 효과를 살펴본 결과, 지각된 자율지향적 학급풍토는 자기결정성동기 유형 중에서 확인된 조절을 매개로 간접효과가 있음을 확인하였다. 둘째, 중학생이 지각하는 통제적 학급풍토가 자기조절학습능력에 미치는 효과를 살펴본 결과, 지각된 통제적 학급풍토가 확인된 조절, 부과된 조절과 외적조절을 매개로 자기조절학습능력에 영향을 미치는 것을 확인하였다. 이러한 결과는 학업에 대한 자기결정성을 높이는 것이 자기조절학습능력 향상을 위한 효과적인 교육적 개입이 될 것을 시사한다.

• 대한간호학회지
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• 제49권3호
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• pp.286-297
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• 2019

Purpose: To investigate the effect of nurses' emotional labor on their turnover intention that was mediated by burnout and to examine the moderated mediation effect of authentic leadership. Methods: A total of 227 nurses working at two general hospitals in Seoul were recruited from March 21 to May 6 in 2016. Emotional labor including surface acting and deep acting; burnout factors such as emotional exhaustion and personal accomplishment; and turnover intention were assessed. The data were analyzed using SPSS 22.0 and SPSS PROCESS macro. Results: Surface acting significantly increased emotional exhaustion and reduced personal accomplishment. Deep acting significantly increased personal accomplishment. Emotional exhaustion significantly increased turnover intention. Conversely, personal accomplishment significantly reduced turnover intention. Surface acting had an indirect effect on turnover intention that was mediated by emotional exhaustion. Deep acting had an indirect effect on turnover intention that was mediated by personal accomplishment. Authentic leadership had a moderated mediation effect on the relationship between surface acting and turnover intention that was mediated by emotional exhaustion. Conclusion: The findings of this study indicate that the establishment of strong authentic leadership by head nurses would help nurses reduce their burnout and turnover intention. Conducting intervention studies would be also important to promote better work environments that would enable nurses to fortify the positive aspect of emotional labor and to reduce their burnout levels.

• 공학교육연구
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• 제23권6호
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• pp.17-26
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• 2020

In this paper, the effect of daily creativity of engineering students on problem-solving ability is addressed through the dual mediating effect of teamwork competency and self-directed learning ability. To this end, a regression-based statistical mediation analysis has been performed on the dual mediation model in which daily creativity and problem solving ability were treated as independent and dependent variables respectively, and teamwork competence and self-directed learning ability were included as mediation variables. The analysis result confirmed that the daily creativity has direct effect on the problem-solving ability, as well as indirect effects through teamwork competence and self-directed learning ability. In particular, the serial mediating effect of teamwork competency and self-directed learning ability was also confirmed to be statistically significant in the relationship between daily creativity and problem-solving ability. This verifies that problem-solving ability can be improved not only directly by improving daily creativity but also indirectly by improving teamwork competence and self-directed learning ability. In addition, teamwork competency showed greater indirect effect on problem-solving ability than self-directed learning ability, so increasing teamwork competency has a more significant effect on improving problem-solving ability than increasing self-directed learning ability. Therefore, in order to develop better problem-solving ability, it is necessary to identify and improve the learners' teamwork competency first and to strive to create an environment where learners can solve problems based on mutual trust with their teammates.

• Journal of Korea Trade
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• 제25권4호
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• pp.146-163
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• 2021

Purpose - This paper examines China's impact on Korea's ICT exports considering the direct competition channel, the production shift channel, and the indirect demand channel at once. This paper also takes China's economic rebalancing into account and discusses whether it makes any differences in the effect of the three channels. Design/methodology - To quantify the effect of the three channels, I constructed a linear panel regression model and estimated it with various estimation methods including the system GMM. China's exports toward the same destination as Korea's exports, Korea's exports toward China, and the third countries' exports toward China respectively reflect the three channels. China's GVC indicators are included as well to evaluate the effect of further China's economic rebalancing. Since the present paper has a greater interest in the effect of China rather than the determinant of bilateral trade, a (fixed effect) panel model becomes more appropriate than the gravity model because timeinvariant variables in the gravity model, such as the distance and the language, are eliminated during the estimation process. Findings - The estimation results indicate that Chinese ICT exports are complementary to Korea's ICT exports in general. However, when markets are considered in subgroups, China's ICT exports could have a negative effect in the long run, especially for SITC75 and SITC76 markets, implying a possible competitive threat of China. The production shift effect turns significant during China's economic rebalancing in the markets for the advanced economies and the SITC76 product. China's indirect demand channel is also in effect significantly for the advanced economy and SITC75 commodities during China's economic rebalancing periods. In addition, this paper shows that China's transition toward upstream in the global value chain could have a positive impact on Korea's ICT exports, especially at the Asian market. Originality/value - The contribution of this paper is threefold. First, it focuses on the ICT industry for which Korea increasingly depends on China and China becomes a global hub of the GVC. Second, this paper quantitatively studies three channels in a model in contrast to the literature which mostly examines those channels separately and pays less attention to the GVC aspect. Third, by utilizing relatively recent data from the period of 2001-2017, this paper discusses whether China's economic rebalancing affects the three channels.

• 융합정보논문지
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• 제10권9호
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• pp.206-214
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• 2020

본 연구는 우리나라 종합병원을 대상으로 직·간접보조금이 수익성에 미치는 영향을 살펴보고자 하였다. 자료는 의료기관 회계정보공시시스템을 이용하여 2016년부터 2018년까지 270개 종합병원 회계정보를 수집하였다. 분석지표는 수익성으로 사업수익에 대한 순이익, 보조금지표는 사업수익에 대한 보조금(시설투자 목적의 국고보조금, 고유목적사업 관련 비용, 연구수익, 기부금수익) 비율을 사용하였다. 연구결과, 직접보조금인 국고보조금 비율은 공립기관이 57.30%로 매우 높았다. 간접보조금으로 세금감면 효과인 고유목적사업 관련 비용 비율은 사립대학교병원이 6.69%로 가장 높았으며, 결손 또는 운영보조 목적인 연구 수익 비율은 국립대학교병원이 2.8%로 가장 높았고 기부금수익 비율은 공립기관이 36.4%로 가장 높았다. 보조금이 수익성에 미치는 영향을 살펴본 결과, 국립대학교병원은 사업수익 대비 고유목적사업 관련 비용의 비율과 연구수익 비율이 낮을수록 사업수익 순이익율이 높았으며, 의료법인과 재단법인은 사업수익 대비 고유목적사업 관련 비용 비율이 높을수록 사업수익 순이익율이 높았다는 것을 알 수 있었다. 이러한 결과는 고유목적사업과 관련된 자금의 활용에 따라 수익성이 변동될 수 있다는 것을 의미한다.

• Journal of Acupuncture Research
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• 제28권1호
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• pp.65-75
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• 2011

Objectives : The purpose of this study was to evaluate the clinical effect of indirect moxibustion treatment for HIVD patients. Methods : From March 2010 to December 2010, 32 HIVD patients who admitted to Semyung oriental medical hospital were divided into two groups. Group I was treated by indirect moxibustion and general acupuncture, group II by general acupuncture. We evaluated the treatment effect of each group with the visual analog scale(VAS) and Oswestry disability index(ODI) by dividing three period(from admission day to third day after admission, from third day to sixth day after admission and from sixth day to ninth day after admission). Results : 1. Group I was more effective than group II in VAS score reducing rate at sixth day after admission and ninth day after admission but there was no statistical significance between two groups at third day after admission 2. Group I was more effective than group II in VAS improvement rate from third day to sixth day after admission but there was no statistical significance between two groups from admission day to third day after admission and sixth day to ninth day after admission. 3. Group I was more effective than group II in ODI score reducing rate at sixth day after admission and ninth day after admission but there was no statistical significance between two groups at third day after admission. 4. In ODI improvement rate group I was higher than group II, but there was no statistical significance. Conclusions : Through this research, Indirect moxibustion treatment is considered to be effective reducing pain for HIVD(Herniated intervertebral disc) patients.

• Asia Marketing Journal
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• 제16권1호
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• pp.35-69
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• 2014

The impact of competition on pricing has been studied in the context of counterfactual merger analyses where expected optimal prices in a hypothetical monopoly are compared with observed prices in an oligopolistic market. Such analyses would typically assume static decision making by consumers and firms and thus have been applied mostly to data obtained from consumer packed goods such as cereal and soft drinks. However such static modeling approach is not suitable when decision makers are forward looking. When it comes to the markets for durable products with indirect network effects, consumer purchase decisions and firm pricing decisions are inherently dynamic as they take into account future states when making purchase and pricing decisions. Researchers need to take into account the dynamic aspects of decision making both in the consumer side and in the supplier side for such markets. Firms in a two-sided market typically subsidize one side of the market to exploit the indirect network effect. Such pricing behaviors would be more prevalent in competitive markets where firms would try to win over the battle for standard. While such qualitative expectation on the relationship between pricing behaviors and competitive structures could be easily formed, little empirical studies have measured the extent to which the distinct pricing structure in two-sided markets depends on the competitive structure of the market. This paper develops an empirical model to measure the impact of competition on optimal pricing of durable products under indirect network effects. In order to measure the impact of exogenously determined competition among firms on pricing, we compare the equilibrium prices in the observed oligopoly market to those in a hypothetical monopoly market. In computing the equilibrium prices, we account for the forward looking behaviors of consumers and supplier. We first estimate a demand function that accounts for consumers' forward-looking behaviors and indirect network effects. And then, for the supply side, the pricing equation is obtained as an outcome of the Markov Perfect Nash Equilibrium in pricing. In doing so, we utilize numerical dynamic programming techniques. We apply our model to a data set obtained from the U.S. video game console market. The video game console market is considered a prototypical case of two-sided markets in which the platform typically subsidizes one side of market to expand the installed base anticipating larger revenues in the other side of market resulting from the expanded installed base. The data consist of monthly observations of price, hardware unit sales and the number of compatible software titles for Sony PlayStation and Nintendo 64 from September 1996 to August 2002. Sony PlayStation was released to the market a year before Nintendo 64 was launched. We compute the expected equilibrium price path for Nintendo 64 and Playstation for both oligopoly and for monopoly. Our analysis reveals that the price level differs significantly between two competition structures. The merged monopoly is expected to set prices higher by 14.8% for Sony PlayStation and 21.8% for Nintendo 64 on average than the independent firms in an oligopoly would do. And such removal of competition would result in a reduction in consumer value by 43.1%. Higher prices are expected for the hypothetical monopoly because the merged firm does not need to engage in the battle for industry standard. This result is attributed to the distinct property of a two-sided market that competing firms tend to set low prices particularly at the initial period to attract consumers at the introductory stage and to reinforce their own networks and eventually finally to dominate the market.

• 한국보육지원학회지
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• 제13권6호
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• pp.21-41
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• 2017

Objective: The purpose of this study was to examine the direct and indirect effects of mothers' and children's emotional instability and maternal affectionate-rational parenting on children's attributional style. Methods: The participants of this study were 253 4th, 5th and 6th grade elementary school students and their mothers in Seoul and Incheon. Data were analyzed by path analysis using AMOS 21.0. Results: The results were as follows: First, children's attributional style for negative and positive events was significantly related to children's emotional instability and maternal affectionate-rational parenting. Also, mothers' and children's emotional instability was significantly associated with affectionate-rational parenting. Second, mothers' emotional instability had indirect effects on children's attributional style for negative and positive events through maternal affectionate-rational parenting. Finally, children's emotional instability had not only significant effects on children's attributional style for positive achievement events, but also indirect effects on children's attributional style for negative and positive events through maternal affectionate-rational parenting. Conclusion/Implications: The results of this study suggest that both environmental and individual factors, including mothers'and children's emotional instability and maternal affectionate-rational parenting, need to be considered to explain children's attributional style. Also, these findings have implications for developing intervention programs for children's attributional style and parental education.

• 산경연구논집
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• 제10권12호
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• pp.7-14
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• 2019

Purpose: In Korea, win-win growth policy has been successfully implemented in supply chain and logistics management. In the policy, it is recommended to support supply chain partners with various mechanisms including financial and technical aids. This study attempts to scientifically analyze the effects of direct and indirect win-win growth policy factors on supply chain and logistics management performance through partnership factors. Research design, data and methodology: This study builds a structural equation model reflecting the relationship between the win-win growth policy, partnership and performance factors. The proposed model is verified with the PLS (Partial Least Squares regression) methodology. Data from shipper and logistics companies were collected and analyzed by the PLS model. Results: The analysis showed that both direct and indirect policy factors are meaningful to improve supply chain and logistics performance. Indirect support factors including R&D, management innovation, human resources development and educational supports have positive impacts on partnership factors. Direct support factors including financial aids and fairness also have positive impacts on the performance. Conclusions: This study is meaningful in that it suggests a turning point in which supply chain Win-win growth and partnership efforts are perceived as new value-creating mechanism rather than unilateral cost reduction for logistics industry.

• 한국진공학회지
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• 제15권3호
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• pp.273-279
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• 2006

Si기반 고주파집적회로의 차단재로서 간접전극 양극산화법으로 형성된 다공성 Si을 활용하기 위한 기초 연구로서 전류밀도, 시간에 따른 기공의 크기와 깊이등을 조사하였고 기공 도입 전,후 Si의 격자상수 변화를 측정하여 유발되는 내부응력의 크기를 평가하였다. 기공의 크기와 깊이는 대개 전류밀도와 시간에 따라 증가하였다. 기공이 형성됨에 따라 Si의 격자상수가 증가하여 약 8MPa의 압축응력이 유발되었다. 간접전극 양극산화법으로 형성된 다공성 Si은 공정이간단하고 기공으로 유발되는 내부응력의 크기가 작아 Si YLSI공정 적합성이 우수하므로 고주파 직접회로의 효과적인 차단재로서 적합한 재료로 판단된다.