Feral cats are widely considered to be leading the potential impacts on public health. This study aimed to provide estimates of vital data for feral cats relating Trap-Neuter-Return (TNR) to establish strategies effectively to manage feral cats in Pyeongtaek. Thus, this study focused on estimating feral cat population in Pyeongtaek and conducted a comparative analysis of the data for feral cats in Seoul (2013). The number of feral cats was estimated from 23,069 to 26,655 in Pyeongtaek, 2019. In relation to human population, when comparing the number of feral cats of Pyeongtaek and Seoul, it ranged from 4.57% to 5.28%, and from 1.97% to 2.55% respectively. This showed that Pyeongtaek was higher than Seoul. Fewer kittens were found in high-density areas, which the TNR project is believed to be generally effective in controlling the number of feral cats. In conclusion, in urban and rural complexes such as Pyeongtaek City, the number of feral cats compared to the population was higher than that of Seoul City, and the TNR program is believed to be somewhat effective in controlling the number of feral cats. When implementing TNR, it is necessary periodically to investigate the population and reflect them in policymaking.

Canine mammary tumors account for ~30% of all tumors in the female dogs and approximately 50% of the tumors are malignant. Exosomes have been the focus of great interest, as they appear to be involved in numerous important cellular processes. In this study, we examined the anti-tumor effects of canine mesenchymal stem cells-derived exosomes (MSC-exosomes) in an experimental murine mammary tumor model using canine mammary carcinoma cells, REM134. The MSC-exosomes were injected tumor site and tail vein of REM134 xenografted mice. We found that tumor size of the MSC-exosomes-treated group decreased compared to those of the only tumor group in REM134-driven tumorigenic mouse model. In addition, the MSC-exosomes-treated tumor group showed meaningfully reduced expression levels of the MMP-3, IL-1β, IL-6, and TNF-α compared to those in the tumor group. Specifically, we confirmed that the expression level of the CD133, potent cancer stem cell (CSC) markers, decreased in the MSC-exosomes-treated tumor group compared to the tumor group. This study suggests that the MSC-exosomes exhibited anti-tumor effects through downregulating CSC-related markers in the canine mammary tumor murine model. Further study is needed in the future, and we are conducting research on the detailed anti-tumor mechanism of the MSC-exosomes.

Recently, as the internet usage is increasing, accordingly generated text data is also increasing. Because this text data on the internet includes users’ comments, the text data on the Internet can help you get users’ opinion more efficiently and effectively. The topic of text mining has been actively studied recently, but it primarily focuses on either the content analysis or various improving techniques mostly for the performance of target mining algorithms. The objective of this study is to propose a novel method of analyzing the user’s requirements by utilizing the text-mining technique. To complement the existing survey techniques, this study seeks to present priorities together with efficient extraction of customer requirements from the text data. This study seeks to identify users’ requirements, derive the priorities of requirements, and identify the detailed causes of high-priority requirements. The implications of this study are as follows. First, this study tried to overcome the limitations of traditional investigations such as surveys and VOCs through text mining of online text data. Second, decision makers can derive users’ requirements and prioritize without having to analyze numerous text data manually. Third, user priorities can be derived on a quantitative basis.

본 연구는 학교 장면에서 학생지도 시 교사의 상업용 온라인 게임 활용 의사에 영향을 미치는 요인이 무엇인지, 그리고 각 요인들이 어떠한 영향을 미치는지를 알아보기 위해 수행되었다. 이를 위해 면대면 설문조사를 실시하였고, 전국 초, 중, 고등학교 교사와 상담교사, 전문 상담사, 총 236명의 자료가 분석되었다. 교사의 인구통계학적 특성과 교사의 상업용 온라인 게임 활용 의사의 관련성을 분석해본 결과, 남성보다 여성교사가, 교사의 연령이 높고 근무 기간이 길수록 상업용 온라인 게임 활용 의사가 낮은 것으로 확인되었다. 교사의 상업용 온라인 게임 활용 의사에 영향을 미치는 요인을 중다회귀분석방법을 통해 분석한 결과, 교사의 개방성과 디지털 게임에 대한 태도 중 디지털 게임의 유익성에 대한 인식, 디지털 미디어 활용능력이 학생지도 시 교사의 상업용 온라인 게임 활용 의사에 정의 영향을 미치는 것으로 확인되었다. 본 연구는 교과학습 및 학생 생활 지도에 있어 교육적 잠재력을 가지고 있는 상업용 온라인 게임에 대한 교사의 활용 의사를 촉진하는 주요 요인들을 밝혔다는데 그 의의가 있다.

최근 기능성 게임의 교육적인 활용에 대한 관심이 증가하면서, 게임의 교육적 효과성에 대한 많은 연구들이 이뤄지고 있다. 본 논문에서는 인지기능 향상을 위한 기능성 게임인 ‘바우바우 프렌즈’를 개발했다. 이 콘텐츠는 인지기능 중 집행기능(Executive function), 지속적 주의력 (Sustained attention), 분리적 주의력(Divided attention)을 다루고 있다. 본 연구에서 개발된 게임의 유용성을 증명하기 위해 EEG 실험을 수행했으며, 게임 전 뇌파와 게임 진행 중 뇌파를 측정하여 비교분석했다. 결과적으로 지속적 주의력 게임(Simon)과 분리적 주의력 게임(Cooking)이 인지기능 향상에 긍정적인 효과가 있는 것으로 나타났다. 보다 아동의 인지기능 향상이라는 명확한 검증을 위해서는 추후 아동을 대상으로 한 EEG 실험을 추가로 수행할 필요가 있다.