• 한국과학교육학회지
• /
• 제24권6호
• /
• pp.1106-1117
• /
• 2004

본 연구의 목적은 첫째, 학생들이 과학적 관찰 및 규칙 발견 활동을 수행할 때 나타나는 과학적 감성 단어의 유형과 빈도, 강도를 분석하고, 둘째, 과학 지식 생성력과 과학적 감성지수(ISE)와의 상관관계를 밝히는 것이다. 이를 위해 연구에서는 먼저 선행 연구를 고찰하여 과학적 감성을 정의하고, 효과적인 지식 생성 활동을 위해 겨울눈과 화석 관찰, 씨앗과 암석 분류의 4개의 과제를 개발하였다. 연구대상은 교원양성대학교 4학년 학생 161명으로 하였다. 피험자들은 각 과제를 수행하면서 인지적 사고과정과 느낀 과학적 감성을 기록하고 형용사 이모티콘 척도 용지에 자신의 감성 강도를 나타내었다. 연구 결과, 관찰 활동에서는 '흥미-수용-사랑-거부' 의 순으로 감성유형이 나타났고, 규칙성 발견 활동에서는 '흥미-거부-수용-기대' 의 순으로 감성유형이 나타났다 각각의 감성 단어 빈도는 감성 강도와 통계적으로 상관관계가 있었다. 과학적 감성 빈도(FSE)와 과학적 감성 강도(SSE)를 곱한 과학적 감성지수(ISE)는 과학적 감성능력을 나타내는 하나의 지표로서 과학 지식 생성력과 높은 정적인 상관관계를 가진다. 개별적인 과학적 감성 지수에서는 '수용-사랑-슬픔-흥미' 순으로 과학 지식 생성력과 정적인 상관관계를 나타낸다.

• 수산해양교육연구
• /
• 제12권2호
• /
• pp.224-243
• /
• 2000

The purpose of this study is to analyze the effects of constructivist instruction applying cooperative learning skill on science academic achievement, science inquiry ability, self-regulated learning, and science related attitude. The subjects of the study were 157 2nd grade junior high school students in Pusan. Subjects were randomly assigned to two groups, experiment and control group. Two groups received 14 sessions training for about 1 month which was done by researcher. The experiment group received constructivist science instruction and the control group received teacher-centered instruction. Constructivist science instruction applying cooperative learning skill consists of five phases: problem recognition, hypothesis establishment, experiment observation, clarification, and application phases. The results of this study are as follows: Constructivist science instruction applying cooperative learning skill had a significant effect on science academic achievement, self-regulated learning and science attitude improvement of middle school students but had no significant improvement of science inquiry ability. And constructivist science instruction had an effect on science academic achievement improvement of the students having high level science inquiry ability. Research suggestions and implications for teaching are discussed.

• 대한치과의사협회지
• /
• 제41권1호통권404호
• /
• pp.35-41
• /
• 2003

Wettability of addition silicone impression material is very important property for making an accurate restoration. This study examined theimpression quality in clinical condition and the wettability of impression material. Three commercially available addition silicone impression material (Imprint; 3M, USA, Examix; GC, Japan, Perfect; Handae, Korea) were studied. A total of 90 putty/wash impressions of semi-dried premolars and wet molar teeth were examined for void production in impression body. The percentae of the sulcus reproduction ability of each material was calculated from the sulcus depths of cross-sectioned casts from the impressions with stereomicroscope. Three impression materials were used to produce die stone casts from vcid entrapment die. Voids in the stone casts were counted with the stereomicroscpe. From the experiment, the following results were obtained: 1. In direct observation, Imprint showed greatest numbers of void in impression body (P<.001).However, correlations were not found between sulcus reproduction and void production. 2. Sulcus reproduction ability of additional silicone impression material was diminished in order of Imprint, Examix, Perfect. The significant difference was found between Imprint and other material (P<.001). 3. In void entrapment laboratory test, void productions was diminished in order of Examix, Imprint, Perfect. All voids in casts were less in delayed poured cast than immediately poured cast. 4. Especially, the stone pouring time of Perfect impression material should be delayed.

• 대한의생명과학회지
• /
• 제16권1호
• /
• pp.33-38
• /
• 2010

Culinary herbs and spices have received much attention since they contain high concentrations of bioactive ingredients for antioxidant and anti-inflammatory activities. Protection effect of the herb and spice against acute alcohol consumption has been investigated using zebrafish as a vertebrate model. During 30 days bathed in water containing 1% Et-OH and the designated herb or spice, the survival rate of the Et-OH group was decreased sharply (up to 20% at 10 days). The cinnamon-fed group showed the highest and longer survival rate up to 80% up to for 30 days under the presence of Et-OH, while clove-fed group showed 40% survival rate for 25 days. Et-OH group serum exhibited the weakest antioxidant ability from ferric ion removal ability (FRA) assay; FRA ability was increased in the cinnamon-fed group up to 414%, while the clove and laurel group increased 256% and 309%, respectively. Histologic observation and Oil-red O staining showed hepatic tissue damage was severe in the Et-OH group. The cinnamon- or clove-fed group showed much ameliorated hepatic tissue morphology with minimized steatosis. The cinnamon- or clove-fed group showed lower serum GOT and GPT levels than the Et-OH group. Among hepatic tissue extract, the clove-fed group exhibited the lowest level of GOT and GPT. These results suggest that consumption of cinnamon and clove might be beneficial to attenuate progress of acute fatty liver change by alcohol consumption.

• 한국식품영양과학회지
• /
• 제26권6호
• /
• pp.1039-1043
• /
• 1997

Correlation among color intensity, electron donating ability to $\alpha$, $\alpha$-diphenyl-$\beta$-dicrylhydrazy(DPPH) and cultivation conditions by Bacillus subtilis DC-2 were tested with response surface methodology. Both of pigment generation ability and DPPH were more affected by temperature than any other factor. The highest correlation was appeared between color intensity and DPPH as 0.8364 which is significant at 1% level. After fixing cultivation time which is not significant at 10% level to 84hrs as optical cultivation time, response surface methodology was conducted in regarding temperature and color intensity. As a result of overlapped contour map of color intensity and DPPH, when cultivation temperature was in the range of 38.9~41.1$^{\circ}C$ and pH was in the range of 8.34~9.12, optical density of color intensity was predicted higher than 0.374 at 390nm and DPPH was infered higher than 1.310 at 528nm. In the range of optical culture condition, cultivation temperature, pH and cultivation time was fixed to 4$0^{\circ}C$, 8.5 and 85hrs, respectively. In resulting, observation value of color intensity and DPPH was in the range of anticipation value as 0.386 at 390nm and 1.332 at 528nm respectively.

• 유통과학연구
• /
• 제19권6호
• /
• pp.29-39
• /
• 2021

Purpose: This study aims to measure whether market orientation, entrepreneurial orientation, and marketing capabilities affected the business performance of salted fish distribution in Kapuk warehouse, West Jakarta at the beginning of the COVID-19 pandemic. This prolonged and difficult pandemic has had an impact on the business of selling salted fish, challenging organisations' ability to maintain business performance. Research design, data and methodology: This study uses a PLS-SEM model approach using Smart PLS 3.0 and a questionnaire as the instruments. The conditions during the observation include 77 distributors who chose to keep doing business, and the research sample were measured by the number of distributors (business actors or people in charge). In this study, the variables of marketing capabilities, market orientation, and entrepreneurial orientation were used to analyse business performance. Results: Interestingly, the results of the study succeeded in explaining that during a pandemic market, both entrepreneurial orientation and marketing ability affected current business performance, although marketing ability remains an inconsistent mediator. Conclusions: This result serves as a reminder that surviving is the priority which must be focused on now, rather than crafting strategies to excel in competition that consume valuable effort and resources.

• 한국초등과학교육학회지:초등과학교육
• /
• 제38권3호
• /
• pp.395-405
• /
• 2019

The purpose of this study is to analyze the process of creative science problem solving (CSPS) in elementary school students. To do this, 6 graders (n=9) at a elementary school in Seoul were participated. In this study, fixed eye-tracker with 250 Hz sampling and observation camera were used. The results of this study, the students with higher ability to solve creative science problems had a slower saccade, and had more visual attention on core clues and a greater number of eye changes. Therefore, students with higher ability to solve creative science problems showed more effective eye movement and faster information processing to solve problems. The CSPS types of elementary students were classified as 'declarative knowledge type', 'procedural knowledge type', 'conditional knowledge type', 'knowledge lack type'. Because each type appears to be complementary, CSPS process for elementary students who have integrated the four types was devised. The results of this study can be used as basic data for understanding elementary school students' CSPS and will help to develop and guide creative science teaching and learning programs useful to elementary school students and science gifted students.

• 디지털융복합연구
• /
• 제15권10호
• /
• pp.269-279
• /
• 2017

이 연구는 팀-기반 학습 적용 전과 후의 의사소통 능력, 문제해결 능력, 자기주도 학습능력 변화에 관여하는 주요하위 변수들과 팀구성 방법에 따라 달라지는 학습능력의 차이와 팀 만족도, 학습선호도를 분석하여 팀-기반 학습법을 간호학 교육과정에 적용하는 방안을 제안하고자 하였다. 2016년 10월부터 12월까지 G시 K대학교 간호학과 1학년 96명과 2학년 108명을 대상으로 수업 전과 후의 관찰 값을 SPSS, Medcalc 프로그램을 사용하여 분석하였다. 본 연구 결과 팀-기반학습은 의사소통 능력, 문제해결 능력, 자기주도 학습능력 모두를 향상시키는데 효과가 있엇고 학업성취도를 고려하여 구성한 팀에서 학습선호도가 높았다. 팀-기반 학습은 학생들이 수업 전 자율 학습과 팀 역동을 통하여 문제해결 및 의사소통 능력을 익히고, 전문성과 개인 개발을 향상시키는 학습방법임을 강조하여 교육과정에 정착할 수 있을 것으로 기대된다. 팀-기반 학습에 관한 방법론적인 구성과 학생 개인의 특성과 학습방법의 선호도 같은 다양한 요소들에 초점을 맞추는 더 많은 연구가 필요할 것으로 생각된다.

• 대한물리의학회지
• /
• 제16권4호
• /
• pp.13-21
• /
• 2021

PURPOSE: This study examined the effects of action observational training with acoustic stimulation (AOTA) on the balance and gait ability in stroke patients. METHODS: Forty-five chronic stroke patients were divided into three groups. The AOTA group (n = 15) received training via a video that showed a normal gait with the sound of footsteps. The action observation training (AOT) group (n = 15) received AOT without acoustic stimulation. The control group (n = 15) received physical training. Each intervention was applied once per day, three times per week for six weeks. The participants in the AOTA and AOT groups had five minutes of AOT. The participants in the all group had 20 minutes of physical training. All participants were measured using the Berg Balance Scale, the Timed Up and Go Test, the Functional Reaching Test, 10 Meter Walk Test, six Minute Walk Test, and Dynamic Gait Index. The collected data were analyzed using SPSS version 20.0 for Windows. The between- and within-group comparisons were analyzed using the one-way analysis of variance (ANOVA) test and a paired t-test, respectively. For all statistical analyses, the significance level was set to .05. RESULTS: The one-way ANOVA test identified significant differences among the measurement results of the three groups (p < .05). Post hoc analyses indicated the AOTA group to undergo more significant balance and gait changes than the control group (p < .05). CONCLUSION: The gait and balance abilities could be improved effectively for patients with stroke when action observation training and acoustic stimulation were applied simultaneously.

• Journal of Preventive Medicine and Public Health
• /
• 제28권2호
• /
• pp.497-510
• /
• 1995

This study was carried out to assess work ability of manufacturing workers and managerial workers. Subjects were 446 manufacturing workers and 278 managerial workers employed in Gumi industrial complex and the observation period was for 1 month(February to March), 1995. In this study, as a questionnaire for the assessment of work ability, we used the Work Ability Index(WAI) which was developed by Institute of Occupational Health in Finland. Major findings obtained from this study were as follows ; WAI was poor in lower economic condition, shift work, irregular diet group(p<0.05). There were no evident trends of WAS in sex, educational level, obesity index, exercise, smoking, and alcohol drinking. In the groups of sensitive to perception of stress, other industrial classification except textile and electronics, the more than 9 hours work, the evident trends of poor WAS were observed(p<0.01). In the groups of $30\sim39$ years old, $40\sim49$ years old, unmarried, high school, shift work, standard body weight, and regular .diet, WAI between manufacturing workers and managerial workers was significantly different(p<0.01) and WAI of managerial worker was worse than that of manufacturing worker.