What factors influence continuous usage intention of head-mounted display-based virtual reality content?: a cross-sectional survey

JeongSil Choi,Heakyung Moon,Mijeong Park 한국여성건강간호학회 2023 여성건강간호학회지 Vol.29 No.3

Purpose: The aim of this study was to explore the continuous usage intention of head-mounted display-based virtual reality (HMD-based VR) content among college students. The study also sought to understand how this intention is influenced by factors related to personal cognition, social aspects, VR content, and HMD-related elements.Methods: This descriptive correlational study used a self-report questionnaire to survey 217 students from two universities in Korea who had prior experience with HMD-based VR content.Results: The mean score for continuous usage intention of HMD-based VR content was 2.59±0.57 points (range, 1–5 points). Regarding the average frequency of HMD-based VR content usage, 64.5% of participants reported using it 1 to 2 times, while 91.7% indicated a total HMD-based VR usage period of less than 6 months. Factors such as personal cognition, VR content, social aspects, and HMD-related elements had explanatory power of 35.1%, 10.7%, 4.4%, and 2.5%, respectively, for the continuous usage intention of HMD-based VR content. Additionally, engagement (β=.45, p<.001), influential others (β=.37, p<.001), environmental support (β=–.18, p=.030), and cyber sickness (β=–.21, p=.001) were identified as having a significant influence.Conclusion: When developing HMD-based VR content, strategies to improve users’ personal cognition should be included. Additionally, it is necessary to develop strategies that enhance enjoyment and interest in the content, while also facilitating ongoing social support. Furthermore, coping strategies should be devised that take into account cyber sickness, a potential side effect of these devices.

Ovarian Tumors in Rbp9 Mutants of Drosophila Induce and Immune Response

Jeongsil Kim-Ha,Jihyun Kim 한국분자세포생물학회 2006 Molecules and cells Vol.22 No.2

Expression of Rbp9 during Mid-Oogenesis Induces Apoptosis in Egg Chambers

Jeongsil Kim-Ha,Kyoungsuk Jeong 한국분자세포생물학회 2003 Molecules and cells Vol.16 No.3

Precocious Expression of Drosophila Rbp9 Inhibits Ovarian Germ Cell Proliferation

Jeongsil Kim-Ha,Kyoungsuk Jeong 한국분자세포생물학회 2004 Molecules and cells Vol.18 No.2

We previously reported that Rbp9 is expressed in the germarium region as soon as germ cells complete mitosis and form 16 interconnected cystocytes. Mutation of Rbp9 caused over-proliferation of cystocytes and generated an ovarian tumor phenotype. This led us to conclude that Rbp9 either inhibits cell proliferation or is required for cell differentiation. To examine the role of Rbp9, we over-expressed it ectopically in germline stem cells and early stage cystocytes that had not yet formed 16 cell clusters. The egg chambers of the newly eclosed transgenic flies looked normal. However, on day 12, most of the developing egg chambers had disappeared and only the germarium region remained. Staining of the Rbp9 over-expressing transgenic ovaries with mitosis markers revealed almost no mitotic divisions in the transgenic germaria. Further examination of these cystocytes with HTS [hu-li tai shao protein], which labels the fusome structure, revealed that the cells in the germarium region consisted of stem cells and cystocytes that had not yet completed four mitotic divisions. These observations suggest that precocious expression of Rbp9 inhibits cystocyte proliferation. Therefore the precise onset of Rbp9 expression in germarium region 2a is critical for inhibiting their further proliferation and achieving their correct differentiation.

Age-related epigenetic regulation in the brain and its role in neuronal diseases

( Jeongsil Kim-ha ),( Young-joon Kim ) 생화학분자생물학회(구 한국생화학분자생물학회) 2016 BMB Reports Vol.49 No.12

Accumulating evidence indicates many brain functions are mediated by epigenetic regulation of neural genes, and their dysregulations result in neuronal disorders. Experiences such as learning and recall, as well as physical exercise, induce neuronal activation through epigenetic modifications and by changing the noncoding RNA profiles. Animal models, brain samples from patients, and the development of diverse analytical methods have broadened our understanding of epigenetic regulation in the brain. Diverse and specific epigenetic changes are suggested to correlate with neuronal development, learning and memory, aging and age-related neuronal diseases. Although the results show some discrepancies, a careful comparison of the data (including methods, regions and conditions examined) would clarify the problems confronted in understanding epigenetic regulation in the brain. [BMB Reports 2016; 49(12): 671-680]

Baking Characteristics of Taurine Supplemented Bread and Cookies and Its Effect on Blood Alcohol Concentrations

Jeongsill Lee,Youngsu Kim 한국식품영양학회 2009 한국식품영양학회 학술대회논문집(학술심포지움) Vol.2009 No.12

강원도 일부지역 외식업 조리사들의 작업관련성 근골격계 질환과 스트레스 정도

이정실(Jeongsill Lee),김영수(Youngsu Kim) 한국조리학회 2017 한국조리학회지 Vol.23 No.2

The aim of this survey is to investigate the occupational musculoskeletal disease and stress levels of restaurant cooks and to provide a basic data of programs in order to prevent occupational diseases. A questionnaire survey was conducted on 220 subjects in Gangwon province. The results show that there was no significant difference in the degree of occupational musculoskeletal disease between male cooks and female cooks. However, western cuisine cooks were more likely to have a higher degree of occupational musculoskeletal disease than other cuisine cooks and showed a higher degree of occupational stress from work overload as well as irregular meal stresses. Cooks aged from 30 to 40 years showed a higher level of occupational musculoskeletal disease in the neck, shoulder, and hand/wrist compared to those in other age groups. The job tenure was related to the degree of musculoskeletal disease in knee. Additionally, the hours of working per day were statistically significantly related to musculoskeletal disease in the knee and to the occupational stress levels in irregular meals stress. The findings of this study suggest that it is essential to design customized education for cooks to lessen their occupational musculoskeletal diseases and stresses in order to ensure the health and safety of the culinary workers.

국어과 교육과정 정책 결정 양상과 합리성 제고 방안

양정실 ( Jeongsil Yang ) 국어교육학회 2016 國語敎育學硏究 Vol.51 No.2

이 연구는 국가 수준 국어과 교육과정 개편사 속에서 국어과 교육과정 정책의 결정 양상을 개괄적으로 살펴보고, 정책 문서로서의 국어과 교육과정의 합리성과 타당성을 강화하기 위한 방안을 모색하는 데 목적이 있다. 국가 수준 국어과 교육과정의 개발에는 1~3차 개정 시기까지 행정적 모형이 적용되다가, 4차 이후 연구·개발 모형이 도입되었고, 2009 개정 교육과정기부터는 공모제를 통해 교육과정이 연구·개발되고 있다. 표면적으로는 교육과정 개발에서 교과로서의 국어과의 자율성이 강화되고 있는 추세처럼 보인다. 그러나 2015 개정 교육과정의 개편에 이르기까지 국어과 교육과정의 개정 시기와 개정 배경은 국가 주도로 결정되고 국어과 교육과정 연구·개발자는 이를 사후적으로 합리화하는 체제로 교육과정 개발이 이루어졌다. 또한 교육과정 총론이 각론에 요구를 부과하는 형식으로 교육과정이 개발되고 문서 형식의 통제를 통해 교과 교육과정의 내용을 제한하는 개발 방식은 국어과 교육과정 구성에 제약을 가져오는 요인으로 작용했다. 국어과 교육과정의 합리성과 타당성을 강화하기 위한 방안으로는 첫째, 수시 개정 체제 속에서 국어과 공동체가 주체적으로 국어과 교육과정 개편의 내적 논리를 개발하고 온축하는 것이다. 둘째, 국어과 교육과정 개발 주체가 교육정책과정에 영향력을 행사할 수 있는 교육정책행위자임을 인지하고 그 역량을 강화하고 책무성을 요구하는 체제를 마련하는 것이다. 셋째, 실행된 교육과정에 대한 평가를 교육과정 개정에 반영함으로써 국어과 교육과정 개정이 교육 현장을 역동적으로 변화하는 데 기여하도록 하는 것이다. 넷째, 총론 또는 일반 교육과정 연구자와의 소통 및 교육계 외의 다양한 사회 구성원과의 소통과 정보 공유를 통해 국어과 교육과정 정책의 내실화를 도모하는 것이다. This thesis aims to survey aspects of policy making of national curriculum of korean and to suggest the ways for enhancing its rationality. Time and reason in revising national curriculum of korean have been determined by government and curriculum developers have justified ex post. And curriculum guideline (``chong-lon``) has restricted korean curriculum by controling document format. It is needed to construct the system to enhance the rationality of the korean curriculum as a policy document. First, korean education community should develop internal logic of korean curriculum revision independently. Second, korean curriculum developers should recognize theirselves as policy actors. Third, evaluation of curriculum implementation should be emphasized during revising curriculum. Finally, it is needed to communicate with curriculum guideline or general curriculum researcher and diverse members of society.

조동사 Do

송정실(Jeongsil Song) 현대문법학회 2001 현대문법연구 Vol.23 No.-

This study discusses the distribution of the auxiliary do in the framework of the Minimalist Program. It is generally assumed that the auxiliary do appears in the context where Infl is not allowed to attach to a verbal element, that is, Infl is stranded. But how the context results doesn’t seem to have been clarified yet except a few typical cases such as negative and interrogative sentences. The auxiliary do also appears in emphatic, imperative and VP-ellipsis sentences. Particularly in case of the imperative, the context seems quite difficult to describe. All the Infl-stranding contexts should be explained in the same manner. This study does that as follows. The emphatic sentence needs do when Aff, which is the emphatic morpheme appearing in the same position as not, blocks the covert raising of the main verb. The VP-ellipsis sentence needs do when the ellipsis leaves I stranded. The imperative needs do when negative or emphatic, regardless of auxiliary be or have appearing. This is because the auxiliary has some meaning and thus is not allowed to raise. The inverted ordering Don’t you ~ in the imperative is due to its lack of the EPP effect.

Isolation of Tru Rbp9 Null Alleles by Imprecise P Element Excisions

Kim-Ha, Jeongsil Korean Society of Molecular Biology 2000 Molecules and cells Vol.10 No.1