• 의학교육논단
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• 제19권3호
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• pp.169-174
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• 2017

This study explores the phenomenon of learner reflection in writing. Sixty-nine reflection logs were submitted by students after medical interview role plays. Using thematic analysis methodology, the following three steps were carried out: (1) the entire contents of the logs were analyzed and coded, (2) the coded contents were reclassified and categorized into higher themes, and (3) all reflection logs were re-analyzed to derive the frequency according to their classifications. The learners' reflection contents were classified into 'preparation,' 'experience,' and 'future plan.' The levels of reflection were 'simple information and appreciation,' 'acquisition and application of knowledge,' and 'analysis and criticism.' The types of reflection were identified only at the level of 'analysis and criticism' and could be classified into 'relativization,' 'objectification,' and 'internalization.' Students' reflection levels were highest in the levels of 'acquisition and application of knowledge' (49.3%), and 'analysis and criticism' (37.7%). A total of 14.5% of the students showed 'internalization.' In order to enable internalized reflection at a critical level, instructional strategies to induce and promote reflection are needed.

• 컴퓨터교육학회논문지
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• 제22권5호
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• pp.27-37
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• 2019

본 연구는 고등학생 대상 온라인 시뮬레이션 기반 HW설계 학습에서 학습자들의 성찰수준을 분석하기 위해, 5차시 HW설계 학습을 실시하고, 차시별 5개 성찰내용에 따른 성찰수준을 분석하였다. 또한 HW설계 학습의 만족도와 필요성을 조사하였다. 차시별 성찰수준 차이 분석 결과, 3차시 D-Flip Flop 학습의 성찰 수준이 1.23점(2점 만점)으로 가장 높았다. 성찰내용 간의 상관관계를 분석한 결과, 학습내용과 과제 해결 방법에서 높은 정적 상관관계(r=.781, p<.01)를, 과제 해결 방법과 다른 해결 방법에서 부적 상관관계(r=-.615, p<.05)를 나타냈다. HW설계 학습 만족도 조사 결과는 4.2점(5점 만점)을 나타냈으며, 대부분의 학생들이 고등학생 대상 HW설계 학습이 필요하고, 현재의 학습내용은 다소 어렵다는 의견이 많았다. 이를 통해 향후 HW설계 학습은 기초-심화로 구성된 콘텐츠와 온 오프라인이 병행된 교육과정 구성이 필요함을 알 수 있었다.

• International Journal of Advanced Culture Technology
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• 제10권4호
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• pp.148-152
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• 2022

The purpose of this study was to investigate whether there is a difference in self-reflection and insight according to the performance level of college athletes. A total of 395 (210 male, 185 female) college athletes from 6 universities were sampled. The level of performance was divided into upper, middle, and lower groups based on the results of matches played in the past 1 year. To measure self-reflection and insight, THE SELF-REFLECTION AND INSIGHT SCALE developed by Grant et al. [4] was used. As a result, there was a statistically significant difference according to the level of performance, and as a result of post-hoc(scheffe) analysis, the upper group of performance was higher than that of the middle group and the lower group.

• 의학교육논단
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• 제24권1호
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• pp.46-55
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• 2022

This study aimed to analyze the subjects, situations, and reflection levels related to role modeling experienced by medical students during their clinical clerkship and their own reflections. This study intends to suggest ways of improving how residents and clinical faculty should treat and teach medical students. Written interviews were conducted regarding senior medical students' role modeling experiences during their clinical clerkships in 2018 and 2019. Content analysis was conducted for a total of 224 cases from 196 students. Content analysis revealed three types of role modeling content: subjects (faculty, residents, nurses, peer students), situations (clinical competence, personal qualities, teaching skills), and the level of reflection (critical reflection, reflection, thoughtful action, and habitual action) in each case. As role model subjects, faculty were found to be the paramount role model (n=142, 62.83%). Role modeling was the most frequently performed for clinical competence (n=103, 45.98%). Clinical competence was frequently shown in communication and empathic listening during rounds and outpatient relationships between the patient and doctor. Regarding the level of reflection for role modeling, the number of critical reflections was 86 (38.39%) and that of reflections was 80 (35.71%). In particular, negative role modeling showed a high level of critical reflection in relation to faculty (64.44%) and nurses (8.89%). In conclusion, role modeling of medical students participating in clinical clerkships occurs in situations that the role models are not aware of, with positive or negative effects on the formation of professional identity among medical students.

• 과학교육연구지
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• 제39권3호
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• pp.389-403
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• 2015

이 연구의 목적은 과학수업 자기비평 과정에서 초등 교사의 경험을 탐색하고, 그 경험에서 드러난 반성 수준의 변화를 분석하는 것이었다. 이 연구는 질적 사례 연구로써, 2인의 초등 교사가 참여하였으며, 자신의 과학수업에 대한 반성적 글쓰기를 통하여 자기비평 과정을 거쳤다. 연구에 참여한 두 초등교사는 반성적 글쓰기를 통한 수업비평을 경험하면서 비평의 관점과 빈도에서 어느 정도의 변화를 보였는데, 그러한 변화는 각 교사의 수업 경험과 자신이 처한 교육적 상황에 따라 차이가 나타났다. 수업비평에 따른 피드백에 의해 나타나는 반성의 수준은 두 교사 모두에게서 높은 수준으로의 큰 변화를 보였는데, 수업에 대한 인식의 긍정적 변화나 학생에 대한 이해, 동료 교사의 수업 관찰과 같이 수업의 실천에 영향을 주는 요인에 대한 인식은 수업 중 반성 혹은 수업 후의 반성을 통해 실천적 지식을 지속적으로 수정 보완하여 결과적으로 반성의 수준을 높이는데 기여하였다.

• 전기학회논문지
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• 제57권3호
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• pp.416-420
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• 2008

This paper proposes a new method to improve signal characteristics at branches frequently met in system-level routing. We also introduce the numerical formula which can estimate the time delay due to branches and the simple design guideline for system-level routing. Finally, we propose the routing method which can eliminate the signal reflection for the case of one driver and two receivers (multi-drop topology).

• 한국음향학회:학술대회논문집
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• 한국음향학회 1997년도 영남지회 학술발표회 논문집 Acoustic Society of Korean Youngnam Chapter Symposium Proceedings
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• pp.68-74
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• 1997

Ship radiated noise is an infortant parameter which dtermines Anti Submarine Warfare(ASW) countermeansure or passive Sonar detection and classification performance. Its measurement should be performed under controlled ocean acoustic environment. In data reduction of the measured data from hydrophone array, theeffect fo ambient noise, surface reflection and bottom reflection etc. should be compensated to obtain the source level of the ship radiated noise. This study describes the measurement hydrophone array design criteria based on the analysis of transimission anomaly due to the surface reflection.

• 생명과학회지
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• 제9권6호
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• pp.646-652
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• 1999

The effect of temperature on the structure change of the SH of myosin head have been investigated with improved resolution by x-ray diffraction using synchrotron radiation. The movement of myosin head and conformational change of contractile molecules were occurred in the muscle contraction. IASL (iodo acetamide) and MSL (maleimide) disordered the orderly helix arrangement of myosin in the rest state of spin level. The temperature effect on the structure change was great at the UL in the equatorial reflection. But those of IASL and MSL were minor. Equatorial reflection (10, 11) change inferred that myosin head was moved to the vicinity of actin filament by temperature change (from $25^{\circ}C$ to $0^{\circ}C$) at UL, but spin level was not changed. The intensity change of 143 $\AA$ and 72 $\AA$ could offer information of the mass profection of population of myosin heads along the filament axis. The slope of intensity profile of the mass profection of 143$\AA$ and reflection of MSL is appeared sharply and those of UL and IASL were not changed. The decrease of MSL actin reflection at 51 $\AA$ and 59 $\AA$ in the actin reflection change refers that the shifted myosin head binds a certain actin or changes an actin structure. From these results, we could conclude that IASL and MSL were spin labeled on SH of myosin head and disordered the helix arrangement of actin.

• 한국해양공학회지
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• 제27권6호
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• pp.90-94
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• 2013

This paper reports the results obtained for there flection and transmission coefficients on rubble mound breakwaters in Busan Yacht Harbor. A2D physical model test was conducted in the wave flume at the Coastal Engineering Research Laboratory at Pusan National University, Busan, South Korea. In this study, physical model tests were completed to further our understanding of the hydrodynamic processes that surround a rubble mound structure subjected to irregular waves. In particular, the reflection and transmission coefficients, as well as the spectrum transformation, were analyzed. This analysis suggests that with an increase in wave height around a rubble mound, the reflection coefficient drastically increases at each water level (HHW or MSL or LLW). Moreover, when the water level changes from HHW to LLW, the reflection coefficient is suddenly reduced. A further result of the analysis is that the transmission coefficient strongly drops away from the rear of the structure. Finally, in regard to the rubble mound breakwater in Busan Yacht Harbor, a consideration of the reflection and transmission coefficients plays an important role in the design.

• 한국응용과학기술학회지
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• 제20권3호
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• pp.268-273
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• 2003

IASL(iodo acetamide spin label) and MSL(maleimide spin label) disordered the orderly helix arrangement of myosin in the rest state of spin level. Especially the effect of IASL was great. The muscle was isometrically tetanized with three trains of 3ms pulses every 50ms between $5^{\circ}C$ with $25^{\circ}C$. Equatorial reflection change inferred that myosin head was moved to the vicinity of actin filament by spin level. The intensity change of $143{\AA}$ and $72{\AA}$ could offer information of the mass projection of population of myosin head along the filament axis. The slope of intensity profile of the mass projection of $143{\AA}$ and reflection of IASL is appeared and that of MSL is appeared sharply. The decrease of $215{\AA}$ reflection intensity the periodical character of $143{\AA}$ reflection by spin label. The raise of MSL actin reflection at $51{\AA}$ and $59{\AA}$ in the actin reflection change refers that the shifted myosin head binds a certain actin or changes an actin structure by spin label effect. Because iodo acetamide has a tendency to decease the actin reflection, actin dose not bind myosin head. From this result, we can conclude that IASL and MSL are spin labeled on SH of myosin head and disordered the helix arrangement of actin.