This research develops an under-investigated aspect of the business literature regarding firm-created and user-generated social media communication and their influence on purchase intention of endorsed fashion products. The results indicate that (i) brand equity mediates the relationship between social media communication and purchase intention of endorsed fashion products, and (ii) the mediational role of brand equity is further moderated by the consumer’s self-congruity with fashion brands.

This research has adopted Word-of-Mouth (WOM) and social support theory along with a social media (SM) perspective to investigate why consumers enjoy using SM and interacting with luxury brand. Focusing on fundamental human needs, this study aims to examine fulfilment of which type of needs enhances interactivity on SM, encouraging in turn WOM adoption and brand-self connection. Our results have shown that consumers’ cognitive and integrative needs drive social interactivity and lead to WOM adoption and brand-self connection. However, no relationship is found between social needs and interactivity. Such relationship can only be strengthened with the presence of emotional support as perceived from the company and its brand.

Introduction Theoretical Development Research Design Result and Conclusion

본 연구는 중국 혹은 중국인 대상 제주의 우호적 이미지 확립을 위해 한반도 사드(THAAD)배치 전후, 중국 주요 언론매체와 인터넷 게시판에 대한 제주 이미지 분석을 실시하였으며, 온라인 공간에 게시된 텍스트를 대상으로 사회관계망분석(Social Network Analysis)을 통해 이를 구체화하였다. 결과적으로 본 연구의 주요목적은 객관적 수치에 근거한 연구방법을 활용하여 중국 내 제주지역 인지도 제고 방안을 모색하고, 제주의 지역경제를 활성화하는데 도움이 되고자 함에 있다.

이 연구는 토픽 모델링의 LDA(Latent Dirichlet Allocation) 기법을 적용해 언론에 보도된 테러리즘 관련 뉴스 기사의 주요 토픽(topic)을 분석하였다. 이를 위해 지난 2014년 6월부터 2019년 5월 중, 미디어에 보도된 뉴스 중에서 테러리즘을 소재로 다룬 36,436건을 대상으로 토픽 을 추출하고, 주요 흐름을 시기별(모술탈환 이전, 모술탈환 과정, 모술탈 환 이후)로 구분하여 분석하였다. 이 연구에서 모술탈환 작전을 주요 분 석 시점으로 정한 것은 국제 테러리즘의 확산과 파급력이라는 측면에서 중요한 키워드가 ISIS(이슬람국가)이고, ISIS 세력의 확장, 축소, 다변화 등과 관련된 주요 사건이 모술탈환 작전이라고 여겼기 때문이다. 연구 방법적으로는 테러리즘과 관련한 방대한 양의 기사 내용을 정량 적으로 분석할 수 있고, 내용적으로는 주요 토픽을 파악함으로써 테러리 즘 기사의 이슈와 정책 이슈와의 관련성을 논의할 수 있는 토픽 모델링 분석을 실시하였다. 이상의 결과는 테러리즘에 대한 주제를 단어 중심으 로 범주화함으로써 관련 연구의 분석 기준을 마련할 수 있으며, 정책적 으로는 관련 이슈에 대한 언론 보도 토픽의 경향성을 파악함으로써 국제 테러리즘 발생에 대한 이해를 기반으로 정책 수립의 방향성을 제시할 수 있을 것이다. 이 연구는 선행연구에서 주요하게 다루지 않았던 테러리즘의 양상과 관련된 뉴스 기사의 주제적 특징을 객관적으로 도출함으로써, 시기별로 중심 주제가 어떻게 변화되고 있는지를 분석하였으며, 이를 통해 우리 사회에서 바라보고 있는 테러리즘 실태와 동향을 살펴보고자 하였다. 이 를 토대로 테러리즘 관련 언론보도의 주요 토픽과 테러리즘 관련 언론보 도 기사에서 모술작전 전후 시기별로 주요 토픽은 어떠한 변화 추이를 보이고 있는지에 대한 함의점을 도출할 수 있었다.

This study used a packed column reactor and a horizontal flow mesh reactor to examine the removal of copper ions from aqueous solutions using pine bark, a natural adsorbent prepared from Korean red pine (Pinus densiflora). Both equilibrium and nonequilibrium adsorption experiments were conducted on copper ion concentrations of 10mg/L, and the removals of copper ions at equilibrium were close to 95%. Adsorption of copper ions could be well described by both the Langmuir and Freundlich adsorption isotherms. The bark was treated with nitric acid to enhance efficiency of copper removal, and sorption capacity was improved by about 48% at equilibrium; mechanisms such as ion exchange and chelation may have been involved in the sorption process. A pseudo second-order kinetic model described the kinetic behavior of the copper ion adsorption onto the bark. Regeneration with nitric acid resulted in extended use of spent bark in the packed column. The horizontal flow mesh reactor allowed approximately 80% removal efficiency, demonstrating its operational flexibility and the potential for its practical use as a bark filter reactor.

This study purposed to see the effectiveness of a media literacy activity in a Japanese conversation class. For this class, teaching/learning contents and methods were developed utilizing the concept of media literacy. Specifically, a CF production activity was created and its effectiveness was compared with other conventional activities such as free talking and debating. The results showed that the CF production activity resulted in high scores and most students found the activity fun, cooperative, and creative. However, when compared with other course contents, it didn’t show much improvement in the students’ Japanese language proficiency. The results suggest that there is a need to do more research on the concept of media literacy and related methodologies in Japanese language education in order to decrease the gap between ‘having fun and developing creativity’ and ‘improving Japanese language skills’.

이 연구는 빠르게 진화하고 있는 OTT 서비스가 기존의 방송산업에 미친 영향과 영상콘텐츠의 생산과 유통, 소비에 미친 영향을 분석하였다. 이를 위해 초기 OTT 서비스의 개념이 어떻게 확장되었는지를 서비스 유형화와 함께 재개념화하였고, 서비스 제공사업자의 특성에 따라 어떠한 대응을 하고 있는지 분석하였다. 구체적으로는 OTT 서비스가 플랫폼과 디바이스의 다변화, 콘텐츠의 생산과 유통, 소비와 같은 전 영역에서 어떠한 변화를 초래하고 있는지를 살펴보고 이러한 변화에 영향을 미치는 요인이 무엇인지를 분석하였다. 그리고 OTT 사업의 현황을 정리하면서 가장 활발하게 OTT 서비스를 하고 있는 ‘넷플릭스’의 국내 진출 이후의 변화와 동향에 대하여 살펴보고 분석하였다. 이러 한 분석결과를 중심으로 OTT 서비스를 둘러싼 다양한 행위자들의 전략과 대응 등을 살펴보고 넷플릭스의 국내 진출 이후의 변화와 동향에 대하여 정리하였다.

Although the efforts to establish fish embryonic stem cells (ESCs) have been made for a long time, derivation of authentic ESCs that possess pluripotency is still difficult suggesting a need for the stepwise optimization of the methods to establish fish ESCs. Primary culture of the blastomeres from the embryos at blastula stage is a critical step for establishing continuous ESC lines. Here, we evaluated the effects of temperatures and basal media on primary culture of blastula embryo-derived blastomeres in marine medaka (Oryzias dancena). The blastomeres were isolated from the blastula embryos and cultured in various conditions designed by the combination of 4 temperatures including 28°C, 31°C, 34°C, and 37°C and 2 basal media including Dulbecco’s modified eagle’s medium (DMEM) and Leibovitz’s L-15 medium (L15). With the exception of a case cultured in L15 at 31°C, the rate of primary cell adherence reached 100% when the blastomeres were cultured over 31°C. The period for primary adherence was significantly shorter in the groups cultured in 34°C and 37°C than in the ones in 28°C and 31°C. The proportion of subculture was significantly high in the group cultured in DMEM at 31°C compared to the other groups. Collectively, we demonstrated that the culture in DMEM at 31°C was effective to primary culture of the blastomeres derived from blastula embryos.

Transition-metal-embedded carbon nanotubes (CNTs) have been accepted as a novel type of sensing material due to the combined advantage of the transition metal, which possesses good catalytic behavior for gas interaction, and CNTs, with large effective surface areas that present good adsorption ability towards gas molecules. In this work, we simulate the adsorption of O2 and O3 onto Rh-doped CNT in an effort to understand the adsorbing behavior of such a surface. Results indicate that the proposed material presents good adsorbing ability and capacities for these two gases, especially O3 molecules, as a result of the relatively large conductivity changes. The frontier molecular orbital theory reveals that the conductivity of Rh-CNT would undergo a decrease after the adsorption of two such oxidizing gases due to the lower electron activity and density of this media. Our calculations are meaningful as they can supply experimentalists with potential sensing material prospects with which to exploit chemical sensors.

In this study, a numerical approach based on mid-point integrated finite elements and a viscous boundary is proposed for time-domain wave-propagation analyses in infinite poroelastic media. The proposed approach is accurate, efficient, and easy to implement in time-domain analyses. In the approach, an infinite domain is truncated at some distance. The truncated domain is represented by mid-point integrated finite elements with real element-lengths and a viscous boundary is attached to the end of the domain. Given that the dynamic behaviors of the proposed model can be expressed in terms of mass, damping, and stiffness matrices only, it can be implemented easily in the displacement-based finite-element formulation. No convolutional operations are required for time-domain calculations because the coefficient matrices are constant. The proposed numerical approach is applied to typical wave-propagation and soil-structure interaction problems. The model is verified to produce accurate and stable results. It is demonstrated that the numerical approach can be applied successfully to nonlinear soil-structure interaction problems.