본 연구는 MTS가 피부개선에 미친 영향에 관한 기존 연구들을 분석하여, 근거 체계를 구축하고, 주요 키워드 간 관계와 역할 및 패턴 등을 구조적으로 분석하고자 텍스트마이닝과 토픽모델링 및 단어네트워크 분석을 실시하였다. 관련 선행연구들은 MTS와 관련된 핵심 키워드와 연관 키워드를 혼합하여 전자도서관에서 검색하였으 며, 결론 부분의 Text를 수집하여 분석에 사용하였다. 분석결과는 다음과 같다. 첫 째, '피부', '효과', '실험', '관리', '개선' 등의 어휘가 주요 개념으로 확인되었다. 둘째, TF-IDF 분석에서 높은 가중치의 키워드들은 MTS의 피부 개선 효과에 관한 과학적 실험 기반 논의를 시사했다. 셋째, LDA 분석 결과, ‘과학적 검증 중심’과 ‘피부 개선 효과 중심’의 토픽2개로 나뉘었다. 넷째, 단어 네트워크에서 '피부'를 중심으로 '주름', '효과', '실험' 등이 강하게 연결되었고, '여성'과 '모공' 노드는 MTS가 여성 안면 부위 에 주로 적용됨을 나타냈다. 본 텍스트마이닝 기법은 유사 의료 미용 시술 분석에도 적용 가능하며, 향후 시계열 분석과 감성 분석을 통해 MTS 효과의 변화와 대상자 반응을 심층 탐색할 필요가 있다.

This study maps domestic versus international trajectories in metaverse‑game research via text mining of 203 papers published in 2020–2024 (Korean text: 125; international: 78). We applied structural-equivalence (CONCOR) analysis and estimated topics via latent Dirichlet allocation (LDA). The top‑100 terms are visualized using word clouds. International keywords are led by systematic, technology, and rehabilitation/treatment, reflecting a strong emphasis on technological trends and clinical applications, whereas Korean studies foreground content and development alongside education and UX/immersion. Topic modeling yields four overseas themes (therapy/rehabilitation; mental health; digital accessibility; and education–entertainment convergence) and five Korean themes (technology & systems; UX/interface; healthcare & welfare; content; and platform). International work is dominated by literature studies (61/78; 78.2%), whereas Korean research centers on surveys and development (44 each; 35% apiece), with several case studies (20%). On the basis of these findings, we recommend more controlled experiments and meta‑analyses for Korean papers, and greater prototyping and field testing for international ones, in addition to stronger multidisciplinary collaboration.

This study used text mining to analyze public interest and research trends related to the Nakdong River. We examined news articles (1990~2024) and academic publications (1960~2024) to understand the evolving relationship between societal concerns and scientific research. Main findings reveal growing public interest towards the Nakdong River, with initial focus on pollution related to the industrial development shifting to large-scale river modification projects and water quality issues. This increased awareness mirrored trends in research, where early emphasis on classic ecology and water quality expanded to include sociocultural, educational aspects and advanced methodologies. The study highlights a dynamic interplay between public discourse and scientific inquiry, with research priorities aligning with societal concerns like water pollution, algal blooms, and biodiversity loss, underscoring the need for integrated, multidisciplinary research that addresses emerging environmental challenges and promotes sustainable management of the Nakdong River ecosystem under climate change and other societal shifts.

This study aimed to explore research trends of nursing ethics in Korea applying text network analysis and topic modelling. 306 articles published in KCI journals from 1998 to 2021 were identified and 516 author-provided keywords were collected. A co-occurrence matrix with 123 keywords, which appeared at least in two articles, were developed based on the Jaccard coefficient. Degree centrality and betweenness centrality were calculated and LDA topic modelling were performed using NetMiner software. The largest number of the articles (70, 23%) were published in Korean Journal of Medical Ethics. The most critical core-keywords, defined as the top 30 keywords in degree centrality and betweenness centrality, were ‘nursing students’ and ‘moral sensitivity’. The other core-keywords included ‘attitude,’ ‘awareness,’ ‘professionalism,’ ‘knowledge,’ and ‘critical thinking.’ related to ethical competence, ‘death,’ ‘hospice,’ ‘euthanasia,’ and ‘research ethics’ related to bioethical issues, and ‘job satisfaction,’ ‘burn out,’ ‘stress,’ ‘organizational culture,’ ‘ethical leadership,’ and ‘ethical climate’ related to organization and leadership. Five topics were identified and named as a) bioethics education for nursing students, b) knowledge and attitudes for bioethical issues, c) awareness and values of bioethics, d) ethical conflicts of RNs, and e) nursing ethics education. This study found that bioethics was the main topics in Korean nursing ethics research and suggested nursing research should focus on ethical issues RNs frequently experience in patient care. Also, research gaps were inferred in multiple topics including nurse-to-nurse relationships, theoretical perspectives of virtue ethics and care ethics, or witnessing healthcare professionals’ unethical behavior.