• 한국초등과학교육학회지:초등과학교육
• /
• 제20권2호
• /
• pp.217-228
• /
• 2001

The purpose of this study was to investigate the effect of learning cycle model on the changes of electricity conceptions of elementary students. Four classes in forth grade of an elementary school in Busan were selected and two of them were served as experimental group and the others as control group. The experimental group were taught the unit of "Light an electric bulb" in elementary science textbook with teaching model based on teaming cycle and the control group with traditional teaching style. The instruction effects were analyzed through pre and post-test results using questionnaire on the electricity. The results of pre-test showed that there was not a significant difference between experimental group and control group at .05 level, so two groups could be regarded as homogeneous. The mean score of experimental group was significantly higher than that of control group on the post-test at .05 level. And within-group comparison revealed that both groups made improvement on the mean score and that the improvement of each group had significant difference at .05 level. Above results said that the teaching model based on learning cycle, which focuses on hands-on activity and considers each student as an active subject, was more effective than traditional teaching style in improving the formation of scientific conceptions on electricity.ectricity.

• 한국전문물리치료학회지
• /
• 제13권4호
• /
• pp.10-15
• /
• 2006

This study examined the ability of human subjects to match a force in their quadriceps muscle during fatigue. Twenty subjects (mean age: 23.4 yrs, mean height: 167.8 cm, mean weight, 62.6 kg) were enrolled in the experiment. In the force-matching task, the quadriceps muscle generated 50% of the MVIC (maximum voluntary isometric contraction) torque under visual control and then without visual feedback. After inducing fatigue in the quadriceps muscle, the subjects were required to match 50% of the MVIC torque without visual feedback. The perceived magnitude of the force and force-matching errors were measured. 50% of the MVIC torque was perceived from 39.96 Nm in the pre-fatigue condition to 44.95 Nm in the post-fatigue condition. 50% of the MVIC torque-matching errors increased significantly from .55% in the pre-fatigue condition to 9.6% in the post-fatigue condition (p<.001). in addition, there were significantly more force-matching errors in women than in men (p<.01). In conclusion muscle fatigue can interfere with a subject's ability to match a force. This suggests that muscle fatigue may contributes to the sensitization of the proprioception.

• 영어영문학
• /
• 제54권4호
• /
• pp.579-597
• /
• 2008

This article discusses David Henry Hwang's M. Butterfly as a suggestive text for examining Western masculinity in crisis in the post-imperialist age, in which territorial imperialism is no longer valid. Previous scholarship on M. Butterfly has centered around the interlocking dynamics of imperialism, racism and sexism. Such critical attentions focus on how Hwang deconstructs racialized significations of the East and the West. In these discussions, the issue of gender is often addressed merely as a trope to represent the power relations between the East and the West. As such, gender as well as sexuality is highlighted as the very source of subversion of the power relations. My discussion departs from a critique of the gendered trope of the East and the West, highlighting a postmodern agent, the allegedly feminized character Song Lining: a Chinese actor who passes for a woman for political purposes in postcolonial China. Remaining an "inappropriate/d other" in the gendered imperialist discourse, Song becomes an emergent subject, who is capable of playing gender ambiguity for reclaiming a devalued identity, that of homosexual Asian man. Discussing how the central character Rene Gallimard's masculine identity is constructed in a cross-cultural space and how it evolves, I also argue that Gallimard's melancholic death signifies a historical unsustainability of imperialist masculinity in the postmodern/postcolonial age since World War II.

• 한국운동역학회지
• /
• 제28권4호
• /
• pp.219-225
• /
• 2018

Objective: Epidemiological research shows that 47 to 73% of athletes suffer from recurrent ankle sprains. Joint mobilization techniques (JMT) implemented in correcting may be beneficial in the management of ankle injuries. The purpose of this study is to examine the immediate JM on ankle complex as clinical measures in individuals with chronic ankle instability (CAI) through intervention. Method: Thirteen subjects with CAI (8 males and 5 females) participated in this study. Each subject tried total four alignments (Navicular drop test: NDT, Standing rearfoot angle: SRA, Tibia torsion: TT, and dorsiflexion range of motion: DFROM). The participants were performed the 10 meter shuttle run after JMT for post-task. Finally, it was tried to compare between pre-post tasks after shuttle run. Results: SRA and DFROM after intervention showed significant differences. SRA (p=.026), and DFROM (p=.034). Conclusion: We concluded that the JMT has resulted in improvement in SRA, DFROM. Increased DFROM and varus shapes of foot would be closed kinetic chain, indicating that reduce the risk factors of ankle sprain. Future study needs to be conducted in order to measure the effects of prolonged intervention of JMT.

• 국제물리치료학회지
• /
• 제10권2호
• /
• pp.1797-1802
• /
• 2019

Background: Breathing is the essential step of Pilates exercise and can be used to activate core muscles. Although the effects of breathing exercise on pain, breathing muscles, and cervical posture have been extensively studied, little is known about the impact of Pilates breathing on spinal posture and alignment. Purpose: To determine the effect of 3D-Pilates breathing exercise on spinal curvature and alignment of healthy adults during corrected to normal alignment. Design: One group pre-post test design Methods: Eighteen participants were given a 3D-pilates breathing exercise twice a week (20 minutes per session) for three weeks and warmed up for 10 minutes before each exercise session. To examine spinal curvature and alignment of each subject, this study used radiation free rasterstereography (Formetric III, Germany). Paired t-test and Wilcoxon signed rank test were performed to determine the difference between pre and post exercise. Results: There were statistically significant differences in height (p<.001), kyphosis angle (p<.05), trunk imbalance (p<.05), kyphotic apex (p<.01), cervical fleche (p<.05), pelvic tilt (p<.01), and lateral deviation (p<.05) between before and after 3D Pilates breathing exercise. However, there was no significant difference in lordosis angle. Conclusions: The study results indicated that three week 3D-pilates breathing exercise program could be presented as an effective rehabilitation method for improving spinal curvature and alignment.

• 대한건축학회논문집:계획계
• /
• 제34권8호
• /
• pp.23-30
• /
• 2018

A necessity of increasing the energy efficiency of the buildings is rising due to global warming and high energy demands prices. Commissioning is an effective way to increase the energy efficiency of the building and reduce maintenance costs. In this study, a case study was conducted to derive the commissioning process of green building and propose management factors that can be used in domestic commissioning projects. The case was a university renovation project that received a LEED Glod certification and conducted the enhanced commissioning. The commissioning is divided into planning, design, construction, and post-construction phases. In the planning stage, commissioning company selection, commissioning goal setting, tasks and responsibilities for each subject are set. In the design phase, preparations are made for inspection and construction steps to prevent design errors. In the construction phase, problems are solved through periodic on-site inspections. In the post-construction phase, a final report with all the details of the commissioning will be created and future maintenance strategies will be proposed. Based on the findings of this study, it will be a basis for the management factors that can be used in the implementation of domestic commissioning projects.

• International Journal of Advanced Culture Technology
• /
• 제10권4호
• /
• pp.39-66
• /
• 2022

Modern Bulgarian nationalists aspired towards incorporating the self-identified Bulgarian lands into the Bulgarian state. The Treaty of San Stefano ending the Russo-Turkish War of 1877-78 tantalizingly achieved these so-called national ideals. Great Power diplomacy quickly diminished Bulgaria's borders and international legal status with the 1878 Treaty of Berlin, exacerbating nationalist grievances. Bulgaria would expand vast resources to restore the San Stefano borders until Balkan Communist authoritarian regimes eventually suppressed the Macedonian issue as a foreign policy subject. Sofia's policy towards its neighbor has been overdetermined by the efforts of successive Bulgarian governments to institutionalize post-communist Bulgaria's own national identity. Bulgaria's integration into so-called Euro-Atlantic structures, i.e., NATO and the EU, had been the primary strategic objective of the Bulgarian authorities since the end of the Zhivkov regime. North Atlantic community security policy aims in response to the earliest post-Cold War foreign policy crises in the Western Balkans framed the parameters of Bulgarian diplomacy. The stabilization of FYROM in 2001, followed by Bulgaria's 2007 EU accession, led to Bulgarian nationalist values become more salient in Bulgarian politics and foreign policy. Sofia-Skopje relations are a test case for the effects of Europeanization on interdependent Balkan ethno-sectarian nationalisms and state territorial institutional development.

• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2022년도 학술발표회
• /
• pp.276-276
• /
• 2022

Estuarine dams are constructed for securing freshwater resources, flood control, and improving upstream navigability. However, their impact on estuarine currents, stratification, and sediment fluxes is not well understood. To develop a general understanding, an idealized modeling study was carried out. Tide and river forcing were varied to produce strongly stratified, partially mixed, periodically stratified, and well-mixed estuaries. Each model ran for one year. Next, the models were subject to the construction of an estuarine dam and run for another year. Then, the pre- and post-dam conditions were compared. Results showed that estuarine dams can amplify the tidal range and reduce the tidal currents. The post-dam estuaries tended to be a salt wedge during freshwater discharge and a bay during no freshwater discharge. For all estuaries, the estuarine turbidity maximum moved seaward, and the suspended sediment concentrations tended to decrease. In terms of sediment flux mechanisms, the estuarine dam increased the seaward river runoff for cases with strong river, and increased the landward tidal pumping for cases with strong tides.

• 국제학술발표논문집
• /
• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
• /
• pp.636-646
• /
• 2011

Post-occupancy evaluation (POE) techniques have been developed to provide a means for evaluating occupant responses to changes in an environment and linking this response to physical measures of that environment. POE has been used to systematically evaluate the performance of buildings after they have been built and occupied for some time. This paper present findings on factors (social and physical), which influences housing residential satisfaction of a sample of occupants in four different government Housing Subsidy locations in the Gauteng Province of South Africa. Descriptive statistics were carried out on the data obtained through the use of occupant survey. Findings emanating from the survey revealed that the respondents were satisfied with their overall housing situation, but had complaints about certain aspects of the housing unit. However, the respondents felt that most of their housing needs were not being met. Also, a comparison is also made of the perceived factors of dissatisfaction amongst the housing subsidy occupants. It is recommended that a wider systematic coverage of the subject through investigation and diagnostic POE and occupants need assessment should be carried in housing subsidy schemes in South Africa.

• 한국방사선학회논문지
• /
• 제12권2호
• /
• pp.225-231
• /
• 2018

최근 학령인구의 감소와 대중매체의 발달로 교수자와 학생이 소통할 수 있는 새로운 교수법이 대두되고 있으며, 전문대학생들에 맞추어 플립드 러닝 교수학습모형을 적용하였다. 맞춤식 플립드 러닝 교수학습 모형 결과에서 전공과목 pre class 출석률은 92.3%의 결과로 나타났다. 그리고 전공이외의 교양 교과목의 pre class의 출석률은 87.6%로의 결과를 보여 주었다. 이러한 결과는 방사선과 1학년 재학생들의 전공과목 pre class출석률이 교양 교과목 pre class출석률보다 적극적인 참여가 있었다는 것을 알 수 있다. 맞춤식 플립드러닝 교수학습모형의 in class에서 적용한 연구 집단과 적용하지 않은 비교집단 간의 차이를 비교해 본 결과, 연구 집단이 비교집단보다 직무능력인 지식, 기술, 태도에서 모두 높은 점수를 보였다. 또한, 예비방사선사로서 갖추어야 할 직업기초능력으로 본 수업 모형을 적용한 결과 90%이상의 학습자들이 책임감, 문제해결 능력, 창의적 사고, 협동 능력, 의사소통 능력이 향상되었다. 맞춤식 플립드 러닝 교수 학습모형의 post class에서 방사선사 역할인지 차이 검증에서는 교수학습모형적용전의 평균이 2.10이였으나 적용 후의 평균은 4.40로 증가하여 나타났다. 맞춤식 플립드 교수 학습 모형을 적용한 결과 방사선과 직업기초능력을 함양하기위하여 본 교수학습모형이 적절하며, 이에 확대 적용할 필요성이 있다고 사료된다.