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Corpus-based Investigation of the Listening Input in Young Beginners’ English Textbooks
서채은 한국초등영어교육학회 2014 초등영어교육 Vol.20 No.2
The quality of listening materials for young beginners in EFL settings is an area in need of research. This paper investigates language representation in the listening components of two young beginners’ textbook series. The listening scripts were primarily examined in terms of the usefulness of lexico-grammatical items which is inferred from a native speaker corpus of child and carer spoken English, Childes-En. The listening scripts of the two textbook series were made into two separate corpora (the KTLC and the OTLC), and lexico-grammatical under- and over- representations were inspected in comparison to Childes-En 0-12 using WordSmith Tools 5.0. It was found that features of spoken register are similarly restricted in the scripted listening of the young beginners’ textbooks. Different under-represented items showed that frequency data from authentic texts are not an overriding principle in inventing listening scripts for young beginners. Over-represented items indicated that language representation is greatly influenced by the underlying viewpoints on language acquisition or the organizing principles. The findings derived from the analysis of lexico-grammatical representation in young beginners’ textbooks were discussed in relation to language acquisition and pedagogy.
이한나,서채은,정미숙,장세복 한국생명과학회 2024 생명과학회지 Vol.34 No.2
This review discusses the pivotal role of vascular endothelial growth factors (VEGF) in angiogenesis and lymphangiogenesis, vital processes influencing vascular permeability, endothelial cell recruitment, and the maintenance of tumor-associated blood and lymphatic vessels. VEGF exerts its effects through tyrosine-kinase receptors, VEGFR-1, VEGFR-2, and VEGFR-3. This VEGF-VEGFR system is central not only to cancer but also to diseases arising from abnormal blood vessel and lymphatic vessel formation. In the context of cancer, VEGF and its receptors are essential for the development of tumor-associated vessels, making them attractive targets for therapeutic intervention. Various approaches, such as anti-VEGF antibodies, receptor antagonists, and VEGF receptor function inhibitors, are being explored to interfere with tumor growth. However, the clinical efficacy of anti-angiogenic agents remains uncertain and necessitates further refinement. The article also highlights the physiological role of VEGFs, emphasizing their involvement in endothelial cell functions, survival, and vascular permeability. The identification of five distinct VEGFs in humans (VEGF-A, VEGF-B, VEGF-C, VEGF-D, and PLGF) is discussed, along with the classification of VEGFRs as typical receptor tyrosine kinases with distinct signaling systems. The family includes VEGFR-1 and VEGFR-2, crucial in tumor biology and angiogenesis, and VEGFR-3, specifically involved in lymphangiogenesis. Overall, this review has provided a comprehensive overview of VEGF and VEGFR, detailing their roles in various diseases, including cancer. This is expected to further facilitate the utilization of VEGF and VEGFR as therapeutic targets.
박지호 ( Ji-ho Park ),서채은 ( Chae-eun Seo ),김서영 ( Seo-young Kim ),이재현 ( Jae-hyun Lee ),최승훈 ( Seung-hoon Choi ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
현대 사회에서 정신건강이 중요한 문제로 부상하고 있으나 국내 정신건강 서비스 이용률은 7.2%에 그친다. 코로나 발생 이후 이동성 제약 등의 요인에 따라 디지털 정신건강 관리 시장이 크게 성장할 것으로 보인다. 이에 본 논문에서는 AI 챗봇을 활용한 고민 상담을 통해 위로 및 제안을 제공하고, 대화 내용을 기반으로 영화를 추천하는 시스템을 제안한다. KoBert 모델을 이용하여 사용자의 감성을 분석하고, KoGPT 모델을 활용해 챗봇 응답을 생성한다.