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Changes in gene expression profile due to acute toxicity of toxaphene in the marine medaka
Lee, Aekyung,Woo, Seonock,Won, Hyokyoung,Lee, Gunsup,Lee, Taek-Kyun,Yum, Seungshic 대한독성유전단백체학회 2013 Molecular & cellular toxicology Vol.9 No.2
Differential gene expression profiling was performed using cDNA microarray hybridization on the hepatic tissue of the marine medaka (Oryzias javanicus) after exposure to toxaphene, which is classified as a persistent organic pollutant. Ninety-seven differentially expressed candidate genes were identified; 40 were induced and 57 were repressed (P<0.05). The genes were assembled into 18 groups based mainly on the Eukaryotic Orthologous Groups classification. These isolated gene candidates were differentially expressed and therefore have great potential as molecular biomarkers for identifying environmental stressors and prognosis for the biological effects of the toxicant. Some of the genes were closely related to endocrine disruption, renal and cardiovascular disease, tumorigenesis, immune responses, and detoxification. Our results will allow future studies to assess the molecular mechanisms of toxaphene toxicity and to develop a systems biology approach to environmental stress biology.
Aekyung Kim,Eun-Jung Lee 복식문화학회 2018 服飾文化硏究 Vol.26 No.1
As fashion and distribution companies have increasingly turned to implementing marketing activities that use omni-channel strategies, it is imperative to explore consumer-oriented evaluations of omni-channel shopping for fashion products. Through contributing to the growing research flow of consumer behavior within omni-channel contexts, the current study explores consumer motivations for omni-channel fashion shopping and their impacts on the decision-making stages of fashion products. The authors first performed in-depth interviews with six Korean consumers and confirmed the four types of consumer motivation for omni-channel shopping, and how decision- making processes react to fashion companies’ omni- channel marketing strategies. These findings were used to set survey items for the main study. Based on the results and findings of previous literature, an online survey was conducted with 300 participants who had actual experience with omni-channel shopping for fashion products. The statistic results from the survey revealed the following: First, the in-depth interviews allowed the authors to confirm four factors of omni-channel shopping motivation (ubiquity, efficiency, convenience, and impulsiveness). Second, the survey showed the authors that among the four factors of omni-channel shopping orientation, impulsiveness had the greatest effect on consumer behaviors at the preand on-purchase stages, while the ubiquity factor had the greatest effect at the post-purchase stage. As such, the study empirically tested the omni-channel-specific factors of shopping orientation and motivation. In addition, it showed the effect of omni-channel marketing on various stages of the decision- making process and the study’s limitations and implications were discussed.
Development of CAMUS based Context-Awareness for Pervasive Home Environments
Aekyung Moon,Minyoung Kim,Hyoungsun Kim,Kang-Woo Lee,Hyun Kim 보안공학연구지원센터 2007 International Journal of Smart Home Vol.1 No.1
With the advent of pervasive computing environments, the issue related to context-aware middleware is an emerging area of research. We propose proactive services on the basis of CAMUS (Context-Aware Middleware for URC Systems). First, this paper presents the system architecture of CAMUS. CAMUS is a middleware for providing context-aware applications with development and execution methodology. Accordingly, the applications developed by CAMUS respond in a timely fashion to contexts. Secondly, this paper illustrates the contents recommendation and control service agents with the property, operation, and task for the context-aware active services. Next, proposed active services are applied to the pervasive home environment for evaluation of our system. To do this, we implement the TV contents recommendation service agent, control service agent and context-aware task using CAMUS. And we evaluate the performance of Planet communication model of CAMUS.