• 한국환경교육학회지:환경교육
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• 제18권1호
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• pp.70-81
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• 2005

The importance of classes aiming at enhancing students ability in problem solving and decision making has been being recognized as chances of individual citizen for taking part in social decision making processes. This study was intended to find whether teachers' opinion presentation have effects on students' decision making in a class introducing environmental issues. Total of 6 classes, 202 middle school students have participated in a series of experiments including 4 different environmental issues. Only two issues had been addresses in classes as experimental issues and other two issues not addressed as control issues. For each of the two experimental issues, the teacher researcher applied three different approaches to his students that included positive, negative, or no opinion. The results of this study can be summarized as follows; First, the results showed that students changed their decisions on environmental issues more frequently when dealing with those issues in a class than when not dealing with them. Second, as examining the relationship between patterns in which students make decisions and whether a teacher proposed his opinions or not, it is shown that the rates of students whose opinions is not changed nearly have no difference, while when teachers propose their opinions, it is shown that students who haven't yet chosen their positions easily make their decisions into pros or cons, compared with the opposite case. Third, the results of this study partly supported the third hypothesis that teachers opinion presentation would effect on decision-making of students. It was found that there has been a significant effect in the case of car free day system issue, but no statistically meaningful result in the case of no pets in the national park issue. However, in the issue of car free day system, it seems pretty clear that the students followed the direction of teachers' opinion no matter what it was pros or cons.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2002년도 추계 학술대회논문집
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• pp.1-7
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• 2002

Liquid rocket regenerative cooling design procedure is introduced with the example of the 250 kg thrust, LOx/kerocine experimental test rocket system. The presentation may be useful for numerical analysists who have limited experiences with real rocket system.

• 기본간호학회지
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• 제6권1호
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• pp.7-17
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• 1999

This study investigated the degree of knowledge achievement and self-confidence in aseptic technique as a part of the fundamental nursing practice classes. The subjects were 220 nursing students in a junior college in Chonnam and an applied Quasi-experimental research methodology was used thirty of them comprised an experimental group to examine learning according to the teaching method. Wata were collected over 80 days, from April to June 1988, analyzed using descriptive statistics, percentages, means, t-test, one way ANOVA, Pearson's correlation coefficient and stepwise multiple regression with the SAS program. The conclusions are as follows. 1. The mean score of the degree of knowledge achievement of aseptic technique of the 220 students was 0.68(possible score 1.0) before the lecture but was 0.88 after lecture(p=.000). 2. The mean score for aseptic technique of the 220 students was 3.41(possible score 5.0) before practice but was 4.27 after practice(p=.000). 3. The correlation of self-confidence before and after practice was relatively low(r=.25, p=.000). 4. The mean score of the degree of knowledge achievement of aseptic technique in the experimental group(selected 30 students) was 0.72 before the lecture but was 0.90 after the lecture. 5. The mean score of self-confidence on aseptic technique in the experimental group(selected 30 students) was 3.18 before practice but was 4.32 after practice(p=.000). 6. The mean score of learning according to the type of teaching to aseptic technique for the experimental group(selected 30 students) was 23.2(possibel score 34) after lecture and presentation, was 27.3 after learning through video tape, was 31.7 after presentation through practice, was 33.7 after first practical training, and was 34 after secondary practical training. As a result of this study, learning methods in the education of fundamental nursing skill effective for knowledge achievement and competence in practicing skill.

• BMB Reports
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• 제39권1호
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• pp.16-21
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• 2006

The coat protein (CP) of Papaya ringspot virus (PRSV) was analyzed for presentation of the antigenic peptide of animal virus, Canine parvovirus (CPV), in Escherichia coli (E. coli). The 45 nucleotides fragment coding for the 15-aa peptide epitope of the CPV-VP2 protein was either inserted into the PRSV-cp gene at the 5', 3' ends, both 5' and 3' ends or substituted into the 3' end of the PRSV cp gene. Each of the chimeric PRSV cp genes was cloned into the pRSET B vector under the control of the T7 promoter and transformed into E. coli. The recombinant coat proteins expressed from different chimeric PRSV-cp genes were purified and intraperitoneally injected into mice. All of the recombinant coat proteins showed strong immunogenicity and stimulate mice immune response. The recombinant coat proteins containing the CPV epitope insertion at the C terminus and at both N and C termini elicited ten times higher specific antisera in immunized mice compared with the other two recombinant coat proteins which contain the CPV epitope insertion at the N terminus and substitution at the C terminus.

• 한국문헌정보학회지
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• 제17권
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• pp.85-103
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• 1989

The purpose of this second one of the two consecutive papers, which carried out for the research, is to evaluate their relative effectiveness regarding instruction with such three presentation methods as video/print+ lecture, print/video, print+lecture/video, with which the library of Duk Sung Women's University applied already for the orientation of the freshmen in 1988. In sum, the major research findings are as follows : First, as the more numerous media were applied for the orientation, the instruction were more effective. Second, it is very interesting to find out that there were wide differences in effectiveness among the three presentation methods applied for the student. Especially, the print+ lecture/video method was more effective in the instruction than the print/video method. Surprisingly, the video/print + lecture method was much more effective than the print+ lecture/video method. With the research findings of this two consecutive papers into consideration, it seems safe to say that the video-tape method was most effective among such three orienting methods as lecture, slide-tape, and video tape, and the video/print+lecture method was most effective among such three presentation methods as video/print+lecture, print/video, and print+lecture/video.

• 마케팅과학연구
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• 제10권
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• pp.91-110
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• 2002

본 연구에서는 기업이 준거가격 광고의 단서에 대한 이론을 적용하여 소비자들에게 어떻게 효과적으로 커뮤니케이션 해야 할 것인지에 초점을 두고 있다. 여러 서비스산업 중 여행상품을 대상으로 정보유형을 조절변수로 하여, 가격단서(외적 준거가격)와 지식수준의 독립변수가 소비자지각의 종속변수에 어떠한 영향을 미치는지에 대해 살펴보았으며, 이러한 변수들의 관계를 이용하여 외적 준거가격의 제시여부와 지식수준의 높고 낮음, 긍정적 정보와 부정적 정보제공을 통한 8개 집단간의 요인실험설계(factorial design)를 실시하였다. 연구결과 서비스의 준거가격 광고에서 가격단서(외적준거가격)를 제시받은 소비자들이 미제시한 소비자들보다 가격-품질지각이 높아지고, 서비스에 대한 지각가치를 높게 지각한다는 사실이 발견되었다. 또한, 긍정적인 정보보다는 부정적인 정보에 노출되었을 때, 지식수준이 낮은 소비자는 지식수준이 높은 소비자보다 가격-품질지각이 높게 나타나는 것을 확인활 수 있었다.

• 한국콘텐츠학회논문지
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• 제18권5호
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• pp.376-385
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• 2018

본 연구는 3차원 멀티미디어를 활용한 모바일 과제정보 제시가 치아카빙지식, 수행 및 실습만족도에 미치는 효과를 검증하고자 하였다. 이러한 연구목적을 달성하기 위하여 치의학 전공 대학생 66명을 대상으로 3D 모델링 어플리케이션을 활용한 실험집단과 텍스트와 삽화로 구성된 2차원 수업자료를 활용한 통제집단에 각각 33명씩 배정하여 실험을 하였다. 연구결과 첫째, 2차원 수업자료를 활용한 과제정보 집단(통제집단)이 3차원 멀티미디어를 활용한 모바일 과제정보 집단보다 치아형태에 대한 이해가 높은 것으로 나타났다. 둘째, 3차원 멀티미디어를 활용한 수업이 학생들의 치아카빙 수행 능력 향상에서 유의미한 효과가 나타났다. 셋째, 3차원 멀티미디어를 활용한 모바일 과제정보 제시 집단의 수업만족도가 통제집단보다 더 높은 것으로 나타났다. 따라서 치아형태학 수업에서 3D 모델링을 제공하는 것은 수업만족도를 높여주며, 치아카빙 수행 향상을 돕는 교육콘텐츠로 활용이 가능할 것으로 보인다.

• 한국간호교육학회지
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• 제27권1호
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• pp.59-67
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• 2021

Purpose: The purpose of this study is to examine the effectiveness of Problem-based Learning (PBL) in an interdisciplinary college class. This class was run under the theme of 'Nurse Social Content Creators' (NSCC) in the Korean Nurses Association (KNA)'s industry-university collaborative project designed to promote a positive image of nurses among the public. Methods: Study 1 examined changes in perception about nurses among the PBL participants before and after the program. A one-group pre-post test experimental design was applied, and the data were analyzed using a Wilcoxon signed-rank test. Study 2 identified differences of perceptions of nurses between people who had observed the PBL final presentation and people who had not. A post-test-only with nonequivalent group experimental design was used, and the data were analyzed using a Mann-Whitney U test. Results: Study 1 revealed a significant increase of positive perceptions towards nurses. Study 2 revealed a significant difference between the PBL presentation audience group and the control group. Students who had observed the PBL program showed more positive perceptions of nurses than students who had not. Conclusion: This research is an important study with high practicality in the area of media studies as well as in nursing. The PBL teaching method was proven to be effective in enhancing perceptions of nurses.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1999년도 춘계학술발표논문집 논문집
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• pp.127-132
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• 1999

Cardiovascular, respiratory and electrodermal responses to acute stress episodes modeled by combined presentation of intense white noise and performance of word recognition task with noise background were studied in 15 college students. Experimental procedure consisted in sessions with white noise, word recognition task presentation with noise background and test with noise background. Recorded physiological variables were analyzed in terms of their sensitivity to detect activation of sympathetic and parasympathetic branches of autonomic nervous system and thus reflect autonomic arousal level during shout-term stress-inducing experimental manipulations. It was shown that performance of effortful mental task with noise background elicited significant physiological responses typical for active coping behavior, namely electrodermal arousal and increased cardiovascular activity. this response profile was more profound as compared to white noise only or attending task in noise background. However, all physiological responses were mostly phasic, without long-term tonic changes, since almost all variables recovered to their initial baseline levels, suggesting that dominant autonomic mechanisms in transient acute stress episodes were of parasympathetic nature (withdrawal in stress with subsequent activation in restoration period), while sympathetic contribution was not long-lasting. Nevertheless, increased number of stressors and their longer exposure may result in higher profile of tonic sympathetic arousal and reduced functional role of vagal mechanisms in autonomic balance regulation.

• 방송공학회논문지
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• 제15권6호
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• pp.757-767
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• 2010

본 논문은 3차원 TV 시청에 있어서, 2차원에서와 같은 색감을 최대한 제공하기 위한 방법을 연구하였다. 이를 위하여 입력 RGB 색상 막대(color bar) 영상을 기준으로 2차원과 3차원 재생시 재현되는 RGB 강도의 입출력 관계를 모델링하였으며, 이를 근거로 2차원 대비 보정되어야 할 3차원 색상 사상표(mapping table)를 생성하였다. 생성된 사상표를 기존 3차원 TV 시스템의 출력부에 추가하여, 일반 2차원 재생시에는 입력 영상을 우회(bypass)하도록 하고, 3차원 재생시 색상 보정 과정을 수행하도록 하여 3차원 재생시에도 2차원에서 느낄 수 있는 색감을 재현할 수 있도록 하였다.