• Journal of The Korean Association For Science Education
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• v.21 no.5
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• pp.924-943
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• 2001

The purpose of the study is to analyze and compare the primary science curricula of Korea, China, and Japan. Science textbooks for Korea and China and national science curriculum guides for Korea and Japan were analyzed in terms of the scope and sequence of the topics. The number of primary science topics dealt with is greatest in China, followed by Korea, then Japan. In addition to the wide range of topics, the Chinese curriculum also shows more in-depth coverage of topics. On the contrary, the Japanese curriculum has the least number of topics and shallowest depth of coverage. Korea seems to be in the middle between China and Japan. The similarities of the curricula in these East Asian countries is greatest between Korea and China. and the least between China and Japan. The similarities between Korea and Japan is somewhere in the middle. Korean primary science curriculum shows a comparatively even distribution of topics across grades. A relatively smaller number of sub-topics are introduced at each grade level, especially in the area of earth science and physics. On the contrary, in the Chinese curriculum, sub-topics tend to be concentrated at a certain grade level, thus major topics are dealt with in a grade or two. The Japanese science curriculum has fewer topics than those of the other countries, and generally one or two sub-topics appeared in a grade or two.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.3
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• pp.808-817
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• 2016

This study aims at reviewing differences of awareness toward speech-language therapy according to background variables of child-care teachers, and establishing a basic data necessary for special education support programs afterwards based on child-care centers and its characteristics with the results. Researcher carried out a survey by objecting child-care teachers of Chungcheongbuk-do, Korea, and looked into existence of some differences through SPSS 20.0 for Window, independent sample t-Test, ANOVA, Scheffe post verification on background characteristics such as level of education, working career, license grade, whether or not to have objects of speech-language objects in the class. Research results are same as follows. First, significant differences in awareness of child-care teachers toward speech-language therapy appeared from license grade among characteristics like level of education, license grade, whether or not to have objects of speech-language therapy in the class. Second, significant differences were displayed from whether or not to have objects of speech-language therapy in the class among characteristics such as level of education, working career, license grade, and whether or not to have objects of speech-language therapy. When putting these results together, a conclusion could be made such like awareness of child-care teachers toward speech-language therapy and therapists is able to be different a little according to background variables of teachers.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2000.11b
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• pp.370-377
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• 2000

The red ginseng is very popular as a health food. It has been manufactured with raw ginseng by the conventional method. But, the yield of the heaven grade ginseng (the best quality red ginseng) among the whole products is around 5-7％, Therefore, the yield should be improved in order to increase economic returns. In this study, a new model of drying system was developed to improve the yield of heaven grade ginseng from 7% to 15% or more. For this system, temperature and relative humidity were controlled by the feedback control system, and a solenoid valve for steam supply and other variables were controlled by the PC. The special features of this system developed are an image processing system for monitoring the red ginseng during the drying process in the drying chamber, and a cylindrical porous tray for holding ginseng that is rotating with the speed of 0-10rpm in the drying chamber and makes uniform drying of red ginseng possible.

• The Mathematical Education
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• v.56 no.4
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• pp.435-452
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• 2017

The purpose of this study is to see correlation between parental psychological control and volition control in mathematics learning of 6th grade of elementary school. This study has carried out a survey for 371 male and female students in 6th grade of elementary school in Gyeongnam. We analyzed the collected data statistically, and the results are as follows. First, there was a significant difference in the level of volition control in mathematics learning between male and female students. The level of volition control in mathematics learning was found to be higher in female groups than in male groups. Second, there was no significant difference in father and mother's psychological control level perceived by 6th grade elementary school students. Third, there was a significant negative correlation between parental psychological control and their children's level of volition control in mathematics learning. In this study, by examining the correlation between parental psychological control and volition control level in mathematics learning of elementary school students, the higher the parental psychological control, the lower the level of volition control of their children. So, that it is important to have a parenting attitude that respects their children's emotion and expression.

• Journal of the Korean Home Economics Association
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• v.41 no.1
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• pp.77-91
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• 2003

The purpose of this study was to explore the effects of children's perception of communications with mothers and self-control on game addiction. The subjects were 739 children of 4th, 5th and 6th grade. The subjects rated themselves on questionnaires regarding communications with mothers, self-control and game addiction scale. The major findings of this study were as follows: 1) 6th grade children addicted more than 4th and 5th grade children. And boys addicted more than girls. 2) Sex had a direct and indirect effect through children's perception of problematic communications with mothers and self-control on game addiction and was the first contribution factor Children's self-control had a first direct negative effect on game addiction. 3) Children's perception of problematic communications with mothers had a direct positive effect and an indirect positive effect through self-control on game addiction. Grade had a direct positive effect and an indirect positive effect through children's perception of open and problematic communications with mothers and self-control on game addiction. Children's perception of open communications with mothers had a direct positive effect and an indirect negative effect through self-control on game addiction.

• Physical Therapy Rehabilitation Science
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• v.10 no.3
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• pp.289-296
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• 2021

Objective: The purpose of this study was to changes in respiratory function due to differences in mask blocking grade, and effects on cardiovascular function during aerobic exercise. Design: Comparative study using paired t-test and analysis of variance measures. Methods: Male and female subjects were randomly divided into 4 groups according to mask blocking grade and measured respiratory functions before and after wearing the mask using spirometers, and their cardiovascular capabilities were measured using pulse oxygen meters and blood pressure meters before and after running for 10 minutes wearing mask. Used paired t-test, one-way ANOVA and Bonferroni post-test to compare the differences according to the mask blocking grade. Results: The experimental results verified that three groups except for the Non-mask group had a significant reduction in all values of FVC, FEV1, MVV, and PEF after wearing a mask compared to those before wearing a mask(p<0.05). Also a significant difference in cardiovascular functions was also observed after aerobic exercises wearing mask in all groups and there was a significant difference between all four groups(p<0.05). Conclusions: Lung patients with poor breathing, elderly and children with poor lung function, and professional groups who need to wear masks and take high-intensity work or aerobic movements are encouraged to take frequent breaks in advance, wear masks and social distancing at moderate and low levels.

• Journal of the Korea Society of Computer and Information
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• v.24 no.1
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• pp.179-186
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• 2019

The purpose of this study is to investigate the drinking culture and attitude difference by gender and grade of Korean college students. A questionnaire was conducted to analyze the characteristics and meaningful differences by two variables about drinking pattern, culture and related policies. The analysis showed that regardless of gender, far more students were against than in favor of prohibition on drinking within campus, whose legislation recently failed. Meanwhile, there was a significant difference by grade in victimization experience regarding drinking within the campus, and by gender in frequency, beverage type, volume, onset of drinking within school. There was no statistically significant gender-based difference in response to experience of damage caused by drinking, but the research results of the related papers show that the female students are more dangerous and need special attention and care. Universities should implement a professional counseling program that is customized according to gender or level of education, and managed by group. Moreover, health authorities must seek a way to lead this move, such as providing incentives to the universities, which efficiently deal with students' drinking problem. And the prohibition on drinking within campus, whose legislation recently failed should be reconsidered.

• Journal of KIBIM
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• v.9 no.4
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• pp.10-20
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• 2019

As a result, the areas of knowledge that received the highest score in a positive impact were areas of risk management, while those that received the highest score in a negative impact were items of software management. In addition, each project was rated according to the score obtained. The distribution of grades by project was 71% for projects above middle grade and 29% for projects below middle grade. These results show that interest in BIM technology is increasing compared to the past, actual field application and research are actively being conducted, and that real construction sites also enjoy significant positive effects in terms of project management through BIM. In addition, the company is using BIM by applying advanced digital technologies such as AI technology, laser scanning technology and drone technology in line with the era of the fourth industrial revolution. Such a steady progress in future research on BIM technology development will reduce the number of low-grade projects and many middle-grade projects are expected to be upgraded to higher-level ones.

• Journal of Korea Multimedia Society
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• v.23 no.12
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• pp.1486-1495
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• 2020

The analysis of digital microscopy images plays a vital role in computer-aided diagnosis (CAD) and prognosis. The main purpose of this paper is to develop a machine learning technique to predict the histological grades in prostate biopsy. To perform a multiclass classification, an AI-based deep learning algorithm, a multichannel convolutional neural network (MCCNN) was developed by connecting layers with artificial neurons inspired by the human brain system. The histological grades that were used for the analysis are benign, grade 3, grade 4, and grade 5. The proposed approach aims to classify multiple patterns of images extracted from the whole slide image (WSI) of a prostate biopsy based on the Gleason grading system. The Multichannel Convolution Neural Network (MCCNN) model takes three input channels (Red, Green, and Blue) to extract the computational features from each channel and concatenate them for multiclass classification. Stain normalization was carried out for each histological grade to standardize the intensity and contrast level in the image. The proposed model has been trained, validated, and tested with the histopathological images and has achieved an average accuracy of 96.4%, 94.6%, and 95.1%, respectively.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.9
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• pp.3993-3996
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• 2014

Background: Diabetes is a chronic disease characterized by impaired fasting blood glucose that leads to disturbances in various organs. In this study, we evaluated relationships between tumor size and grade in a population of diabetic and non-diabetic patients with renal cell carcinoma. Materials and Methods: Between 2007-2013, in our clinic radical nephrectomy performed to 310 patients for renal tumors and pathology reported renal cell carcinoma cases were enrolled in the study. Patients with and without a history of diabetes regarding fasting glucose and HgA1c levels were evaluated during surgery for tumor size and Fuhrman grade. Results: Diabetes was found in 95 patients. The mean age of the patients with and without diabetes mellitus was 64.3 (40-79) and 58.4 (31-87) years, respectively. In the diabetes group 51% of patients had a tumor size over 7 cm and 54% a tumor grade over Fuhrman 3. The respective figures in the non-diabetes group were 35% and 30% (p<0.05 in both cases). Conclusions: Renal cancer appears more aggressive in patients with diabetes. In this study lifestyle and risk factors with diabetes regulation were observed to be important for renal cancer patients. Multicenter studies are needed in larger series for more accurate results.