• Journal of dental hygiene science
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• v.15 no.6
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• pp.845-850
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• 2015

The purpose of this study was to examine the actual state of injuries experience and safety accident prevention in dental hygienists. This study surveyed the actual state of injuries experience caused by apparatus and materials through a self-administered survey of 366 dental hygienists. Statistical analysis was performed using PASW Statistics 18.0. Frequency, chi-square test, t-test, one-way ANOVA were applied in this analysis. The results were as follows: Out of the 307 subjects (83.9%) experienced injuries in the last 6 months, and 294 subjects (80.3%) chose the stab as the most frequent type of injuries experience and it was followed by incised wound, scratch and burn. In relation to the differences in injuries experience depending on general characteristics, there were significant differences depending on the age, career, position, dental treatment (p<0.001) and the education (p<0.01). In relation to the differences in the level of safety accident prevention practice depending on general characteristics, there were significant differences depending on the injuries experience, age (p<0.05) and the types of dental clinics (p<0.01). Therefore, We suggest to establish a systematic process for safety accident prevention in dental clinics and emphasize the importance of prevention through continued safety education be needed.

• Journal of Gifted/Talented Education
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• v.19 no.3
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• pp.411-432
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• 2009

This study analyzed the differences in parents' perceptions toward children's adjustments after grade skipping and early graduation. Parents of an early entrancer to K university(n=43) and parents of a non-early entrancer to K university(n=12) responded two kinds of questionnaires, one is for parents' perceptions towards children's needs for grade skipping and early graduation, and the other is for parents' perceptions toward children's adjustments to university experiences. Parents' responses were analyzed by MANOVA and MANCOVA. Results indicated that there was the significant difference in parents' perceptions for 'information about early graduation.' That is, parents of an early-entrancer had more 'information about early graduation' than their counterparts. However, there was no significant difference in parents' perceptions, after the effect of 'information about early graduation' on parents' perceptions toward children' academical and social-emotional adjustments. Thus, parents having more 'information about early graduation' considered more seriously the needs of grade skipping and early graduation in their children and worried less about their children's adjustments to university experiences.

• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.48-50
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• 2010

Stommel(1948)은 서안경계류의 원인이 베타효과($\beta$-effect)라 일컫는 코리올리 파라미터(f)의 위도 변화 때문인 것을 밝혔다. 서안경계류는 고등학교나 대학 교양에서 중요하게 다뤄지고 있다. 학생들은 보통 이론 수업만으로 서안경계류의 발생 과정, 이에 관련된 코리올리 힘, 베타효과 등을 이해해야 한다. 때문에 서안경계류와 관련된 실험이 있다면 이를 이해하는 데 큰 도움이 될 것이다. 또한 연구에서 검토한 6종의 고등학교 지구과학 2 교과서는 서안경계류를 본문과 더불어 삽화로 설명하고 있다. 그러나 이 중 3종의 교과서 삽화에서는 서안경계류의 발생 원인을 코리올리 힘만으로 지적하고 있다. 따라서 일부 학생은 서안경계류의 원인을 코리올리 힘으로 오해 할 수 있다. 위와 같은 이유로 우리는 서안경계류가 코리올리 힘의 작용과 베타효과에 의해 나타나는 것을 쉽게 확인 할 수 있는 실험 장치와 다양한 실험 방법을 개발하였다. 개발한 실험 장치는 직육면체의 수조와 회전 속도를 조절할 수 있는 테이블로 구성된다. (Fig. 1) 이와 같은 회전수조는 대기와 해양의 움직임을 실험실에서 모사하기 위해 자주 사용되었다(Beardsely 1969, 소선섭 등 1995; 1997). 우리의 수조는 경사진 바닥과 평평한 바닥으로 두종류를 제작하였다. 바닥이 경사진 수조는 베타효과를 구현하기 위한 것이다. 반시계 방향으로 회전하는 테이블은 중위도 어떤 위도에 접하는 가상의 평면이 지구 자전에 의해 회전하는 것을 나타낸다. 그리고 수조 상부에는 회전원판을 물에 접하여 시계방향으로 회전시킨다. 회전원판은 북반구 중위도 해양에 작용하는 바람 응력을 나타낸다. 우리는 테이블의 회전유무와 바닥의 경사유무에 따라 4개 실험을 수행하였다(Table. 1). 각 실험에서 물을 채운 수조를 원판에 올려놓고, 회전원판을 작동시킨 후 20분 동안 그대로 두어 수조안의 미세규모의 운동을 최소화 시킨 후 잉크를 떨어뜨리고 관찰하였다. 그 결과 실험 SB_f1은 베타효과와 코리올리 힘이 존재하여 서쪽 경계에서 좁고 빠른 흐름을 만들고 수조의 중간 부근에서 경계를 벗어나 동쪽으로 향하고 있다. 이 모습은 실제 해양의 서안경계류의 분리 현상과 비슷하다. FB_f1은 코리올리 힘만 존재하여 서쪽 경계에서 좁고 빠른 순환과 경계를 벗어나 동쪽으로 분리되는 흐름이 나타나지 않으며 전반적으로 크게 회전하는 모습을 보인다. SB_f0은 바람의 응력만 존재하는 경우로 잉크가 확산하는 모습을 보이며 나선팔의 모양으로 회전하면서 넓게 퍼져나간다. FB_f0의 모양도 이와 비슷하게 나타난다. 실험 SB_f1과 FB_f1을 비교하여 서안경계류는 코리올리 힘의 위도변화 효과인 베타효과가 있을 때 발생한다는 것을 알 수 있다(Fig. 2). 이 결과는 "단순히 코리올리 효과에 의해 서안경계류가 발생한다"는 생각을 바꾸게 할 것이다. 덧붙여 서안경계류 분리와 수조 바닥의 경사의 관계를 살펴보기 위한 실험을 실시하였다. 경사가 더 급하면 ($\alpha=20^{\circ}$) 서쪽 경계를 벗어나는 지점이 좀 더 북쪽에 나타났다. 현재 서안경계류는 개발한 실험 장치와 방법을 학교 현장에 적용하여 그 교육적 활용 가치를 평가하는 연구를 진행하고 있다.

• Journal of dental hygiene science
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• v.14 no.3
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• pp.424-432
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• 2014

The purpose of study is to understand the relation with factors which affect the mental health and to investigate self-esteem, department satisfaction and career stress among dental hygiene students. The study performs self-administered questionnaires survey from March to May, 2013, among dental hygiene students of college in Busan and Ulsan with the convenience sampling and finally analyzes 376 questionnaires. The study performs the path analysis to analyze the impact of the mental health on self-esteem, department satisfaction and career stress and the correlation among these variables. The analysis result shows that the self-esteem most affects and the direct effect on the mental health. The factor which affects the self-esteem is the department satisfaction show direct effect, also career stress has direct and indirect effect. Self-esteem is important factors in the department satisfaction, career stress and mental health. Thus, a stable mental health for students and groups of individuals who need to take advantage of professional counseling and career exploration program structured should be configured.

• Journal of dental hygiene science
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• v.18 no.4
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• pp.234-240
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• 2018

The purpose of this study was to provide basic data on counseling, education, and treatment related to orthodontic practices through an understanding of the relationships between orthodontic treatment, oral health-related quality of life, and happiness of high school students. The subjects in this study were 500 students in Grades 1~3 of a high school in Jeollabuk-do. We conducted a survey targeting this group; the results revealed the following: in the social support item, peer support showed significant differences in the matter of orthodontic treatment (p<0.05). In oral health-related quality of life, the students without orthodontic treatment showed 14.09 scores that were higher than the students with treatment (p<0.05). Regarding happiness, the students with orthodontic treatment showed higher scores which were significantly different from the those of the non-orthodontic treatment group (p<0.05). Additionally, upon examining the correlations between self-esteem, social support, oral health-related quality of life, and happiness, oral health-related quality of life, peer support, and happiness showed the negative (-) correlations while the rest of the variables showed the positive correlations (p<0.05). The factors having effects on oral health-related quality of life included the stress, matter of orthodontic treatment, and teachers support (p<0.05). The factors having effects on happiness included self-esteem, peer support, and family support (p<0.05). Based on the above results, even though dental orthodontic treatment had negative effects on oral health-related quality of life, it had positive effects on happiness. Consequently, it would seem necessary to seek active methods to increase oral health-related quality of life. This improvement could be achieved by minimizing inconveniences, such as mastication, in the process of dental orthodontic treatment, and developing programs that could enhance happiness.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.11
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• pp.527-534
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• 2016

The emergent information society requires the talent for creative thinking based on problem-solving skills and comprehensive thinking rather than simple memorization. Therefore, the Korean curriculum has also changed into the direction of the creative thinking through increasing short-answer questions that can determine the overall thinking of the students. However, their scoring results are a little bit inconsistency because scoring short-answer questions depends on the subjective scoring of human raters. In order to alleviate this point, an automated scoring system using a machine learning has been used as a scoring tool in overseas. Linguistically, Korean and English is totally different in the structure of the sentences. Thus, the automated scoring system used in English cannot be applied to Korean. In this paper, we introduce an automated scoring system for Korean short-answer questions using predictability and unanimity. We also verify the practicality of the automatic scoring system through the correlation coefficient between the results of the automated scoring system and those of human raters. In the experiment of this paper, the proposed system is evaluated for constructed-response items of Korean language, social studies, and science in the National Assessment of Educational Achievement. The analysis was used Pearson correlation coefficients and Kappa coefficient. Results of the experiment had showed a strong positive correlation with all the correlation coefficients at 0.7 or higher. Thus, the scoring results of the proposed scoring system are similar to those of human raters. Therefore, the automated scoring system should be found to be useful as a scoring tool.

• Korean Journal of Social Welfare Studies
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• v.49 no.1
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• pp.221-262
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• 2018

This study aims to explore life experiences associated with poverty and discrimination in processes of growth, career exploration, entry into the labor market, and career accumulation of the working high school graduate youths. With this exploration, we also intent to grasp their difficulties and needs, thus look for policy tasks for them. The analysis is based on qualitative case study. The results are following. Typical working high school graduate youths choose not to go on to university under the influence of unfavorable economic situation of the original families. They enter the labor market without enough career exploration and try to continue working mainly in low-income and unskilled jobs. They usually work long hours to increase incomes, thus, do not have enough time to invest on their own human resources. They locate in a vicious circle of income poverty, time poverty, and skill poverty, but rarely protected by existing employment and income support programs. It is necessary to improve or introduces policy packages including labor market transition support for the high school graduate, education, training, and career exploration support, income support for the working poor, social network support, and support for reducing the dead zone of social insurances.

• The Journal of Korean Academy of Sensory Integration
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• v.16 no.2
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• pp.36-49
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• 2018

Objective : The purpose of this study was to examine the validity and reliability of the Korean version of Life Balance Inventory (K-LBI) and to present the relationship between life balance and sensory processing. Methods : K-LBI was constructed through forward and backward translation. Convergent validity, internal consistency, and test-retest reliability were tested for college students. To verify convergent validity, correlation analyses between K-LBI and Korean version of Perceived Stress Scale, Korean version of Satisfaction With Life Scale, and Adult Self Report-Achenbach system of empirically based assessment were performed. Split-half reliability and test-retest reliability were also obtained for reliability verification. We performed the correlation analysis between K-LBI and Korean version of Adolescent/Adult Sensory Profile. Results : A significant correlation was found between K-LBI and the scales for convergent validity. A favorable split-half reliability and test-retest reliability were calculated. The positive correlations were found between relationship life balance and sensory sensitivity/sensation avoiding quadrants. The negative correlation was found between challenges life balance and low registration. Conclusion : This study shows that K-LBI is a valid and reliable tool in Korea. It also provides an in-depth understanding of the relationship between life balance and sensory processing.

• Journal of Life Science
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• v.31 no.8
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• pp.778-785
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• 2021

The germination of cucumber seeds begins with the degradation of reserved oil to fatty acids within the lipid body, which are then further metabolized to acyl-CoA. The acyl-CoA moves from the lipid body to the glyoxysome following β-oxidation for the production of acetyl-CoA. As an initial carbon source supplier, acetyl-CoA is an essential molecule in the glyoxylate cycle within the glyoxysome, which produces the metabolic intermediates of citrate and malate, among others. The glyoxylate cycle is a necessary metabolic pathway for oil seed plant germination because it produces the metabolic intermediates for the tricarboxylic acid (TCA) cycle and for gluconeogenesis, such as the oxaloacetate, which moves to the cytosol for the initiation of gluconeogenesis by phophoenolpyruvate carboxykinase (PEPCK). Following reserved oil mobilization, the production and transport of various metabolic intermediates are involved in the coordinated operation and activation of multiple metabolic pathways to supply directly usable carbohydrate in the form of glucose. Furthermore, corresponding gene expression regulation compatibly transforms the microbody to glyoxysome, which contains the organelle-specific malate synthase (MS) and isocitrate lyase (ICL) enzymes during oil seed germination. Together with glyoxylate cycle, carnitine, which mediates the supplementary route of the acetyl-CoA transport mechanism via the mitochondrial BOU (A BOUT DE SOUFFLE) system, possibly plays a secondary role in lipid metabolism for enhanced plant development.

• 한국사회정책
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• v.20 no.3
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• pp.171-195
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• 2013

One of the current issues in Workers' Compensation Insurance is about the coverage range. Korea uses the definition of worker under the Labor Standards Act in Workers' Compensation Act and solved the problems associated with the coverage range of insurance group by the exceptional clause only for the groups which was raised about the need for the social protection. The purpose of this paper is to draw implications for solving problems which are associated with the coverage range of insurance group by reviewing the German literature. We focus on volunteers and persons in special types of employment. German government supports the activity of volunteers by providing with the protection service against the accidents. This paper shows how the coverage range is extended from the dependent employees in the introduction of the Workers' Compensation Insurance to the people who need social protection focusing on the volunteers. The implications of this research are following. First, German system shows that Workers' Compensation Insurance can be extended to the groups which do not belong to the dependent employee but are worthy of protection. Second, it is necessary to provide volunteers in the social welfare system with the protection service against the accidents and the statutory accident scheme is recommendable to use. Third, volunteers in the social welfare system need to be compulsory insured. Fourth, Korea should find their own way in solving problems associated with persons in special types of employment.