• Title/Summary/Keyword: Alternative Reality

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Effects of auditory feedback and task difficulty on the cognitive load and virtual presence in a virtual reality dental simulation

  • Kim, Byunggee;Yang, Eunbyul;Choi, Namki;Kim, Seonmi;Ryu, Jeeheon
    • The Journal of the Korean dental association
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    • v.58 no.11
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    • pp.670-682
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    • 2020
  • This research examined the difference in cognitive load and the virtual presence depending on auditory feedback and task difficulty in haptic-based dental simulation. In the field of dental education, practice-centered training using handpiece has been crucial because a practitioner's psychomotor experience has a significant impact on the mastery of treatment skills. For the novice, it is necessary to reduce errors in dental treatment to enhancing skill acquisition in the haptic practice. In the training process, the force-feedback is crucial to elaborate subtle movement to guide what to do and how it should be hard or soft. However, It is not easy to add force-feedback to generate kinetic experience training. As an alternative method, we examined that auditory feedback can help learners' skill training. In this study, we analyzed how the presence/absence of auditory feedback at the different levels of task difficulty impacts learners' psychological demand and virtual presence in the virtual reality simulation. For this study, 29 dental college students participated in a dental simulation. The participants were grouped into two conditions that are with and without auditory feedback. Additionally, two consecutive tooth preparation tasks with different levels of difficulty were used in the simulation. The auditory feedback condition gives alarms to a learner when he treats a non-targeted tooth with a virtual handpiece. The user's cognitive load and virtual presence were measured to examine the effects of auditory feedback. The results revealed that the main effect was found in cognitive loads. Also, a significant interaction effect was shown in the virtual presence. We discussed the effective design methods for the virtual reality-based dental simulation through the result of this study.

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How does the world in the game reveal the end of the century? -Analysis on the method of the representation of the end of the century in the game : With focus on Resident Evil 3, Parasite Eve 2, Silent Hill 3- (게임 속의 세계는 세기말을 어떤 방식으로 드러내는가? -게임 속 세기말의 구현 방식에 관한 분석 : Resident Evil 3, Parasite Eve 2, Silent Hill 3 중심으로-)

  • Ok, Seon Young
    • Journal of Korea Game Society
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    • v.21 no.1
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    • pp.3-24
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    • 2021
  • This paper deals with on the game's way of embodying the society at the end of the century. Resident Evil, Parasite Eve, and Silent Hill are the targets of the analysis. First, I examine the world view of each game and its own language that conveys its contents. Second, I analyze the specific parts of reality that the three games imitate and the way they are represented. Third, I consider the connection between the real world and the world embodied in the game. Fourth, I suggest the possibility of providing an 'alternative perspective' of game media that reveals the hidden aspects of reality in a way of representation. In conclusion, the image of the game becomes 'the eye' that complements our perspective, captures the hidden aspects of reality, obtains a meaningful part, and even presents its blueprint.

Smoke Modeling and Rendering Techniques using Procedural Functions (절차적 함수를 이용한 연기 모델링 및 렌더링 기법)

  • Park, Sang-Hyun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.17 no.5
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    • pp.905-912
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    • 2022
  • Virtual reality, one of the core technologies of the 4th industrial revolution, is entering a new phase with the spread of low-cost wearable devices represented by Oculus. In the case of disaster evacuation drills, where practical training is almost impossible due to the risk of accidents, virtual reality is becoming a new alternative that enables effective training. In this paper, we propose a smoke modeling method that can be applied to fire evacuation drills implemented with virtual reality technology. In the event of a fire, smoke spreads along the aisle, and the density of the smoke changes over time. The proposed method models the smoke by applying a procedural function that can reflect the density of smoke calculated through simulation to the model in real-time. Implementation results in the background of the factory show that the proposed method produces models that can express the smoke according to the user's movement.

Representation and Re-presentation in the Theatre of Tadeusz Kantor (환영과 현실의 경계에 서다 - <비엘로폴, 비엘로폴>을 중심으로 본 타데우즈 칸토르의 연극 미학)

  • Sohn, Wonjung
    • Journal of Korean Theatre Studies Association
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    • no.49
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    • pp.75-100
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    • 2013
  • An on-going creative process was the major principle of Kantor's artistic endeavors. Kantor's emphasis on process grew out of his frustration with the experience of creation being isolated from the audience in the present time, during the moments of encounter. At the same time, however, Kantor was always aware of the fact that the first night of each and every performance that he made was the last point of his creative intervention. Despite being performed live in the present time, Kantor saw theatre essentially as an end product. This does not mean that Kantor abandoned the concept of on-going process, for process was for the artist a means to reject the idea of a finished work of art and to denounce the feeling of satisfaction derived from the traditional denouement in representational theatre. For him, theatre that dominated his time isolated the audience from the art work and the artist, and from this perspective his continual emphasis on process should be understood as an aesthetic principle in order to open up and expand the dimension of art into the realm of the spectator so that the experiences of both the artist and spectator may coexist. The heaviest barrier that separated the artist and his work from its audience was the creative structure that governed Western art. In theatre it was the dramatic structure that was the main object of his series of severe challenges. Not only did it fail to represent reality but it distorted reality, creating nothing but artificial illusion. Under this condition, all that was permitted to the audience was mirages. However, Kantor never completely discarded illusion from his theatre. The point for him was always to created a circumstance where the illusory reality of drama comes to exist within the dimensions of our reality. It was Kantor's belief that instead of a total denial of illusion, his theatre should strategically accommodate illusion which comes from reality. And, the aim of Kantor's theatrical experiments was to invite the audience into this ambience and transform the experience of his audience into a much more participatory one. This paper traces the ways in which Kantor transgressed the dominating conventions of representational, literary theatre, and how such attempts induced an alternative mode of spectatorship. The study will begin from an investigation into Kantor's attitude towards illusion and reality, and then move onto a closer inspection of how he spatially and dramaturgically materialized his concepts on stage, giving special focus on Wielopole, Wielopole.

A Study on the Alternative Dispute Resolution in America (미국의 재판외 분쟁해결제도)

  • 김태한
    • Journal of Arbitration Studies
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    • v.13 no.2
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    • pp.181-209
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    • 2004
  • This Study is divided into 5 separate Parts and an Abstract. Part Ⅰ, Ⅱ consist mostly of a collection of problems, current status, motives and the future of ADR. In Pert Ⅲ was described ADR as policies of judicial settlements. We must accept that a diversity of legal culture will always continue to exist. Accordingly we must learn to accommodate those differences of 'culture' around us and to harmonize conflicting laws. This recognition of our reality should in no way be confused with pessimism. In fact if one accepts this perspective of the world ,the study of law seems enriched and becomes academically more challenging. Recently, in the United States, interest in alternative settlement mechanism has increased greatly, which leads me to wonder why such a phenomenon has taken place. In the first place, I'm amazed at the extent to which conciliation or mediation-or the new word, I guess, is alternative dispute resolution, which by now has its own acronym, "A.D.R,"-have gained attention here recently. When 35 years ago, there was virtually no interest in conciliation in this country at the time. What interest there was, was no in the law schools. But looking at the situation now, we have a spate of publications on the subject; we have organizations that are established for no other reason than to promote alternative dispute settlement. We have courses in the law schools. The American Association of Law Schools and the American Bar Association also have active programs. So we have to ask ourselves why. The difference between now and 35 years are striking. On the other hand, I think the interest of the public in ADR has probably been greatly enhanced by the politics of the so-called "poverty programs." I think that many of these assistance programs for the poor-and I do think the "poor" have become a rather expansive political movement beyond simply taking care of the most marginal people of society-have generated money to explore this kind of dispute resolution.

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Nursing students' satisfaction and clinical competence by type of pediatric nursing practicum during the COVID-19 pandemic (코로나19 팬데믹 상황에서 간호대학생의 아동간호학 임상실습유형별 만족도, 학습만족도와 임상수행능력)

  • Ju, Hyeon Ok;Lee, Jung Hwa
    • The Journal of Korean Academic Society of Nursing Education
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    • v.30 no.1
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    • pp.29-38
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    • 2024
  • Purpose: This study aimed to investigate student nurses' satisfaction by type of clinical practicum and to determine predictors of clinical competence in pediatric nursing. Methods: A total of 189 Junior and Senior student nurses across seven colleges in the Busan Metropolitan City were enrolled in the study. The participants completed a structured questionnaire containing items about their learning satisfaction with different types of pediatric nursing practicums and their clinical competence. Data were analyzed using the mean, standard deviation, independent t-test, ANOVA, and multiple regression analysis. Results: Regarding satisfaction with each type of clinical practicum, the mean satisfaction score (out of 10) was 8.18±2.26 for on-site clinical rotations and 7.35±2.20 for alternative practicums. Among the different types of alternative practicum approaches, those with a satisfaction score of 7 or higher included fundamental nursing skills, watching videos, simulation etc., while those with a satisfaction score of less than 6 were virtual simulation and problem-based learning. The predictors of clinical competence in pediatric nursing were learning satisfaction with practice, school year, and alternative practicum, accounting for 35.0% of the variance in clinical competency. Conclusion: It would be helpful to combine on-site clinical rotations with alternative practicum approaches and to develop various alternative practice programs using simulation practice, virtual reality, immersive interactive systems, and standardized patients to enhance students' clinical competency.

An Empirical Analysis on Critical Factors in Reaching Mediation Agreements (조정합의 성립의 결정요인에 대한 실증적 분석)

  • 정헌주;김경배
    • Journal of Arbitration Studies
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    • v.11 no.1
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    • pp.37-73
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    • 2001
  • I. Preface It is widely understood that the 21st century, with the development of information technology(IT) and the spread of networks, will be called a digital economy where information-driven business will be norm rather than the smokestack economy of the past. And the drastically changed world market is expected to generate even more commercial transactions across the world creating large numbers of legal disputes. Therefore, each country will attempt to develop ADR(Alternative Dispute Resolution) as an alternative to judicial proceedings in order to cope with not only the ever-increasing international commercial claims but also domestic legal disputes. Taking this reality into account, this study begins with an exploration of mediation procedure as a way of helping the court faced with its overwhelming numbers of lawsuits. And also this study makes a theoretical comparison between ADR and mediation procedure, analyzing critical factors affecting the mediation agreement. Furthermore, it is designed to find ways for disputing parties to make better use of mediation and ensure fairness to the parties involved. It tries to enhance mediators' understanding of critical factors influencing the mediation agreement and their ability to handle commercial disputes in a more efficient way. To make an empirical analysis of these factors, bibliographic research and questionnaire were used. This analysis will fill the gap between the theory and reality, and make possible the structured research on the factors. Therefore, this study sets the model by which we can evaluate how the three critical factors (parties' inclination, mediators' characteristics, institutional features) affect the parties reaching a mediation agreement. Based on this analysis, a theoretical hypothesis was built and a questionnaire was made and distributed. During the course of this work, SPSSWIN 10.0 program was applied.

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Weaving the realities with video in multi-media theatre centering on Schaubuhne's Hamlet and Lenea de Sombra's Amarillo (멀티미디어 공연에서 비디오를 활용한 리얼리티 구축하기 - 샤우뷔네의 <햄릿>과 리니아 드 솜브라의 <아마릴로>를 중심으로 -)

  • Choi, Young-Joo
    • Journal of Korean Theatre Studies Association
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    • no.53
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    • pp.167-202
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    • 2014
  • When video composes mise-en-scene during the performance, it reflects the aspect of contemporary image culture, where the individual as creator joins in the image culture through the device of cell phone and computer remediating the former video technology. It also closely related with the contemporary theatre culture in which 1960's and 1970's video art was weaved into the contemporary performance theatre. With these cultural background, theatre practitioners regarded media-friendly mise-en-scene as an alternative facing the cultural landscape the linear representational narrative did not correspond to the present culture. Nonetheless, it can not be ignored that video in the performance theatre is remediating its historical function: to criticize the social reality. to enrich the aesthetic or emotional reality. I focused video in the performance theatre could feature the object with the image by realizing the realtime relay, emphasizing the situation within the frame, and strengthening the reality by alluding the object as a gesutre. So I explored its two historical manuel. First, video recorded the spot, communicated the information, and arose the audience's recognition of the object to its critical function. Second, video in performance theatre could redistribute perceptual way according to the editing method like as close up, slow motion, multiple perspective, montage and collage, and transformation of the image to the aesthetic function. Reminding the historical function of video in contemporary performance theatre, I analyzed two shows, Schaubuhne's Hamlet and Lenea de Sombra's Amarillo which were introduced to Korean audiences during the 2010 Seoul Theatre Olympics. It is known to us that Ostermeir found real social reality as a text and made the play the context. In this, he used video as a vehicle to penetrate the social reality through the hero's perspective. It is also noteworthy that Ostermeir understood Hamlet's dilemma as these days' young generation's propensity. They delayed action while being involved in image culture. Besides his use of video in the piece revitalized the aesthetic function of video by hypermedial perceptual method. Amarillo combined documentary theatre method with installation, physical theatre, and video relay on the spot, and activated aesthetic function with the intermediality, its interacting co-relationship between the media. In this performance theatre, video has recorded and pursued the absent presence of the real people who died or lost in the desert. At the same time it fantasized the emotional aspect of the people at the moment of their death, which would be opaque or non prominent otherwise. As a conclusion, I found the video in contemporary performance theatre visualized the rupture between the media and perform their intermediality. It attempted to disturb the transparent immediacy to invoke the spectator's perception to the theatrical situation, to open its emotional and spiritual aspect, and to remind the realities as with Schaubuhne's Hamlet and Lenea de Sombra's Amarillo.

Analysis on Characteristics of Therapeutic Factors of VRAT(Virtual Reality Art Therapy) Contents (가상현실 미술치료 (VRAT) 콘텐츠의 치료적 요인 특성에 대한 분석)

  • Rim, Sung-Ryun
    • The Journal of the Korea Contents Association
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    • v.22 no.4
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    • pp.1-12
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    • 2022
  • Since the early 20th century, along with the interest and development of alternative psychotherapy, the field of art therapy has also been developed and expanded. In particular, the recent development of technology and the untact era brought about by the COVID-19 Pandemic is accelerating the development of new digital art therapy contents. Among them, the hot interest in virtual reality is raising expectations and questions about the effectiveness of psychotherapy given by new media beyond traditional art therapy. In this study, the characteristics of VRAT (Virtual Reality Art Therapy) content therapeutic factors were investigated through qualitative literature analysis based on the conceptual framework and therapeutic components of ETC (Expressive Therapies Continumm), an integrated art therapy theory. As a result of the study, VRAT contents showed mostly therapeutic factors in the left hemisphere that triggered the user's dynamic, perceptual, and cognitive factors, and the therapeutic factors in the right hemisphere, which focused on sensory, emotional, and symbolic factors, were relatively few. The reason seems to be due to the nature of the experimental stage, the absence of active intervention by the therapist and long-term session composition, and the fear, clumsiness, and unfamiliarity of users about VRAT in addition to the characteristics and technical limitations of the VRAT medium. The limitations of the study include the small number of documents to be analyzed and the insufficient form of current VRAT to be called art therapy. It is expected that the characteristics of the therapeutic factors of VRAT content media and environment derived as a result of this study will be usefully used for the appropriate development of VRAT content in the future.

A Study on the Future Competency Education of Christian Alternative Schools Using Delphi Analysis Techniques (델파이 기법을 활용한 기독교대안학교의 미래 역량교육에 관한 연구)

  • Youngju Ham
    • Journal of Christian Education in Korea
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    • v.74
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    • pp.135-157
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    • 2023
  • Competency means 'the ability to do something', and competency-based education means 'the process of education based on the concept of competency'. Competency-based education is generally implemented in general education. However, competency-based education has not yet been actively conducted in the field of Christian education. In particular, it has not been established academically on what competencies Christian alternative schools provide in common. Most of the previous studies related to competency-based education in Christian education are related to competency-based education conducted by Christian universities. Research related to competency in Christian alternative schools is mainly related to the professionalism of teachers or the ideology of Christian alternative schools. In other words, there are few specific studies on what kind of competency they provide to students attending Christian alternative schools. Therefore, this study aims to understand the reality of competency-based education conducted by Christian alternative schools using Delphi analysis techniques. Through this study, four goals and 20 competency elements of competency education pursued by Christian alternative schools were found. By categorizing the goals and elements of competency education, it can be divided into relationships with God, relationships with oneself, and relationships with others and the world. In conclusion, it was suggested that Christian alternative schools should provide education that pursues the universal purpose of Christian education based on specificity and reflect the goals and elements of competency education in the curriculum.