• Title/Summary/Keyword: reciprocal transformation

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A photoelastic study of the stress distribution on canine retraction by segmented TMA T-loop spring (Segmented TMA T-loop spring에 의한 견치 후방이동시의 응력분포에 관한 광탄성법적 분석)

  • Yoon, Young-Jooh;Kim, Kwang-Won;Yu, Pil-Sik
    • The korean journal of orthodontics
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    • v.31 no.2 s.85
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    • pp.199-207
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    • 2001
  • The segmented TMA T-loop spring, used for reciprocal space closure and described by Burstone, was used to achievebodily movement of canine. Photoelastic analysis is a technique for the transformation of internal stress into visible light patterns. The two-dimensional photoelastic stress analysis was performed, and stress distribution was recorded by photography. The purpose of this study was to visualize photoelastically the distribution of forces transmitted to the alveolus and surrounding structures using new segmented TMA T-loop spring for canine retraction. The results were as follows: 1. Decreased activation produced decreased stress of upper 1st. premolar extraction site and increased intrusive stress of upper 1st. molar, regardless of T-loop position. 2. At 5mm activation, More posterior positioning of T-loop Produced an increased stress in upper 1st. premolar extraction site. 3. At 3mm activation, More posterior positioning of T-loop produced an increased stress in upper 1st. premolar extraction site and mesial lower half of upper 1st. molar mesio-buccal root. 4. At 1mm activation, More anterior positioning of T-loop produced an increased stress in upper mesial and blew apex area of upper canine root. 5. 0.25 B/L ratio and 3mm activation produced bodily movement of canine. To summarize, desired tooth movement and anchorage requirement is possible by altering the activation and mesio-distal position of the T-loop spring.

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Towards Intercultural Christian Education: A Christian Educational Response to Multicultural Phenomenon in the South Korean Context (상호문화적 기독교교육: 한국의 다문화현상에 대한 기독교교육적 응답)

  • Choi, Heejin
    • Journal of Christian Education in Korea
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    • v.61
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    • pp.263-294
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    • 2020
  • In South Korea which has become a multicultural society, ethnic and cultural others have suffered from discrimination against them and isolation from society. Multicultural policies and multicultural public education have simply focused on the assimilation of cultural others without providing opportunities to build a reciprocal relationship between Kor eans and cultural others. Noting this reality, this paper proposes intercultural Christian education as a prophetic and educational role of faith communities in society. Intercultural education, intercultural theology, Miroslav Volf's drama of embrace, and Sang-Jin Park's theory of the ecosystem of Christian education offer theoretical foundations for intercultural Christian education. Based on these foundations, the paper discusses the definition and goal of intercultural Christian education and argues for the roles of intercultural Christian education to help Christ ians "SEE" the self, the other, and the community through self-reflection, embrace, and ecological transformation. As intercultural Christian education pursues to nurture Christians to have a respectful and hospitable mindset toward cultural others, such education will help faith communities seek a multi-colored kingdom of God.

Receptivity to Migrant Wives in Korea: A Qualitative Approach (여성결혼이민자에 대한 지역사회 수용성: 안산과 영암의 지역주민을 중심으로)

  • Hoon-Seok Choi ;Ai-Gyung Yang ;Sun-Ju Lee
    • Korean Journal of Culture and Social Issue
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    • v.14 no.4
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    • pp.39-69
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    • 2008
  • The present study examined the overall receptivity of community members to migrant wives in Korea. A total of 23 community members from two regions, Ansan, an urban area and Youngam, a rural area, were selected for the interview based on their prior experience with migrant wives. Data were collected via a semi-structured interview method. The participants provided their personal feelings and thoughts on a variety of issues involving migrant wives, such as how they perceive migrant wives' original culture and lifestyles, the nature of their interaction experience with migrant wives, their overall evaluation of migrant wives, their opinions about migrant wives' cultural adaptation, and their opinions about the on-going transformation of the Korean society into a multi-racial, multi-cultural society. Interview results indicated that, although the participants' attitude toward migrant wives was positive, the overall receptivity to migrant wives was largely based on the traditional sex-role stereotypes typically found in the Korean society. Moreover, the vast majority of the participants endorsed a narrow-minded, uni-directional perspective on cultural adaptation which puts far greater emphasis on migrant wives' assimilation into the host culture than reciprocal influence process between the two cultures. Implications of the study and directions for future research were discussed.

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