• Korean Journal of Childcare and Education
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• v.6 no.3
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• pp.1-22
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• 2010

The major purpose of this study was to investigate the effect of parent-child communication and the inclination of interpersonal relations on the child's loneliness. The participants were 588 children in 5th and 6th grade of the elementary school which is located in Jeonbuk. Data were collected by self-administered questionnaire method. Data were analyzed by statistical techniques such as mean, frequency, percentile, t-test, pearson's correlation, multiple regression analysis using SPSS/Win 12.0 program. The major results of this study are as follows: First, female children's communication with their mother are more open that those of male children and have ostentation-narcism stronger than that of male children. There is no significant difference statistically in children's loneliness by sex. Second, it is indicated that the parent-child communication has negative correlation with children's loneliness and it also has close relations with sub-variables in inclination of interpersonal relations. Third, when investigating how parent-child communication and inclination of interpersonal relations have influences on child's loneliness, they have influences on child's loneliness by the following order: social-friendly, mother-child communication, father-child communication.

• 한국지구과학회:학술대회논문집
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• 2004.02a
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• pp.2-12
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• 2004

The purpose for this study is to inquire into the effects of teaching methods in the class on the conceptual change of atmospheric pressure for middle school students. After analyzing the concept of atmospheric pressure in the middle school science textbooks on the present 7th Curriculum, classes were performed adopting classified Method A and Method B. For Method A, the textbook used that explains the concept in the view of weight. For Method B, the textbook used approaching to the concept in the views of molecular movement as well as of weight. This study consists of four classes in the third grade students of middle school in Busan, which were divided into the Method A group and the Method B group. The result of the study carried out pre-post each of these classes on the learning achievement and on the conceptual change of atmospheric pressure. The result of this study were as follows: First, the effect on the learning achievement was displayed the average score of the Method B was showing meaningful difference comparing to the Method A. Second, the effect on the conceptual change measured by verifying the score for the difference among the averages for each sub-scale three out of four conceptual factors, 'the direction of atmospheric influence and the reason', 'the principle of atmospheric action' and 'the atmospheric changes by the temperature rise on the surface of the earth and the reason', showed meaningful improvement. But, the one left factor, 'the distribution of atmospheric pressure by altitudes and the reason', displayed no meaningful difference. Third, The concept of atmospheric pressure is better defined as the pressure created by the movement of air particles, in the view of kinetic theory of gas, rather than explained by the notion of the weight of air.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.491-495
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• 2008

The purpose of this study is to analyze the characteristics of IT gifted middle school students. The researcher analyzed the observational assessments of 16 gifted noddle school students through 19 education programs conducted from During the latest 3 years at the Science Gifted Children Education Center. The researcher hypothesized that IT gifted children would be outstanding in computer skills and information processing abilities. But they were not much different from gifted children in the other areas. Therefore there are two suggestions resulted from the study. First, it might not be meaningful to sub-categorize the subjects because of their developmental stages. The tenth grade students observed in this study were in their formal operational period by Piaget. Therefore, it would be desirable to teach them integrated areas rather than separated areas. Second, gifted children could be excellent in most areas. Due to their curiosity, task tenacity, and intellectual abilities, they could show excellence in any areas. Therefore, it is important to elaborate the educational programs so that the gifted children can develop their abilities in each areas.

• Journal of Korean Ophthalmic Optics Society
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• v.12 no.4
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• pp.91-94
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• 2007

This research was investigated to find out the examinees' refractive problems within heterophoria using Torrington method. The number of subjects ware approximately 327 and subjects were sourced from the 12th grade student at high school in Kwang-Ju city. Result obtained shows 21.4% of emmetropia and 78.6% of ametropia. Most of refractive errors were myopia and due to it's condition, frequency of ametropia and emmetropia at the similar rate. However, one that consist of refractive problems, it's myopia contains 74.9% of heterophoria. Due to emmetropia, horizontal heterophoria have 45.7% of exophoria and 4.3% of esophoria. Myopia shows 11.4% of esophoria and 63.5% of exophoria. Hozizonda heterophoria shows 5.7% of emmetropia and myopia of 22.4%, than average of esophoria shows $4.3P{\Delta}$ and case of myopia, it was $3.4P{\Delta}$. Case of Exphoria, emmetropia have $8.8P{\Delta}$ and within myopia $8.0P{\Delta}$. Vertical heterophoria owns $2.2P{\Delta}$ within emmetropia and case of myopia $4.3P{\Delta}$ was shown. Which shows myopia result value higher than emmetropia.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.241-251
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• 2017

This study was conducted to investigate 314 college students in G area from December 1 to December 30, 2015 to investigate death attitude and related factors of health college students. As a result of the analysis, the level of death awareness was 2.04, and the average score was 2.49 points of pain anxiety, 1.95 points of death anxiety, and 1.86 points of anxiety. Death awareness sub - domains showed significant differences in age, grade, health status, and living standards. Pain anxiety, death anxiety, and later life anxiety. The results of this study are as follows: First, the effects of anxiety and anxiety on death, anxiety of death, anxiety of life, anxiety of suffering, anxiety of life, anxiety of death, The fear of death was not so great as death felt far from reality at once. However, a correct perception of death can lead to more peaceful deaths and more rewarding life for the present. Death preparation education is needed to live a meaningful life for college students who are far from death.

• Journal of the Korean Wood Science and Technology
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• v.35 no.6
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• pp.13-22
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• 2007

This study was carried out to scrutinize possibility of manufacturing pitch pine (Pinus rigida) glued laminated timber in order to add values of pitch pine trees. Also, it was investigated to improve bending performance of pitch pine glulam. Pitch pine was imported as one of major plantation species in Korean peninsula. Machine stress rated grades of pitch pine lumber mostly ranged between E7 and E9. which grades were more or less inferior to producing high quality glulam. However, the adhesive properties between pitch pine and pitch pine, and between pitch pine and Japanese larch (Larix kaempferi Carr.), such as shear bond strength, wood failure rate and de-lamination rate of bonded layer submerged in cold and boiling water, were higher than Korean Standard criteria. These properties are essential for manufacturing glulam with single species or multiple species. The modulus of rupture (MOR) of pitch pine glulam exceeded the criterion of Korean Standard for glulam strength grade but modulus of elasticity (MOE) was lower than the criterion. On the other hand, the bending performances (MOR and MOE) were improved 20 percent by mixing with Japanese larch laminar. It is effective to arrange higher quality Japanese larch laminar at the outer layer of glulam for improving bending performances. In conclusion, it is possible to use low quality pitch pine as laminar of structural glulam for adding values of pitch pine.

• Journal of Wetlands Research
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• v.14 no.2
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• pp.169-180
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• 2012

Aster altaicus var. uchiyamae, endangered plants to grade II designated by the Ministry of Environment Korea, is only distributed in Gyeongsangbukdo, Chungcheongnamdo in Korea. In order to know the effects of elevated $CO_2$ concentration and temperature on ecological responses of A. altaicus var. uchiyamae, this study was carried out in the control(ambient $CO_2$ + ambient temperature) and treatment(elevated $CO_2$ + elevated temperature) at glasshouse. As a result, germination rate of A. altaicus var. uchiyamae was higher in control than in treatment. Period of alive leaf was longer in control than in treatment. Period of blooming and seed maturity was faster in control than in treatment. Shoot and root weight were heavier in control than in treatment. No. of inflorescence per plant and seed per inflorescence was higher in control than in treatment. Weight of inflorescence per plant, seed per inflorescence and one seed was heavier in control than in treatment. These results indicate that ecological responses of A. altaicus var. uchiyamae may be more negatively affected by elevated $CO_2$ and temperature except for phenological responses of that may be delayed under future global warming situation.

• Journal of the Society of Disaster Information
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• v.8 no.3
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• pp.310-318
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• 2012

Actual condition by items based on the level of execution of Construction Company certified by Construction Safety and Health Management Systems (KOSHA 18001) was investigated, analyzed and evaluated reflecting various opinions fincluding safety experts, top management, audit experts, and construction engineers. Currently, the maintenance is being managed through internal audit after the safety and health management system has been certified, but it is difficult to identify the degree of continuous improvement. In order to present the standards to see the level of quantified system, this study was conducted. The purpose of this study is to present the system maturity evaluation tool to be used to reduce occupational accidents through proper establishment and continuous improvement of national health and safety management system. Results of this study are summarized through identification of current condition of implementation of KOSHA 18001 system, development of maturity measurement tool and verification as follows: First, priority of implementation for activities of headquarters and on-site was determined by importance of activities such as the risk assessment, safety and health accident prevention activities, performance assessment and monitoring, resource management and support, and management review and improvement in order. In addition, the expert group presented that association with continuous improvement activities could establish the system by presenting strengths, weaknesses and improvement subjects of system.

• Journal of The Korean Association For Science Education
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• v.33 no.7
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• pp.1471-1485
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• 2013

The purpose of this study was to develop a HAM (Heuristic Attention Model) by analyzing the difference between eye movements according to the science achievement of elementary school students on discrimination task. Science achievement was graded by the results of the Korea national achievement test conducted in 2012 for a random sampling of classes. As an assessment tool to check discrimination task, two discrimination measure problems from TSPS (Test of Science Process Skill, developed in 1994) which were suitable for an eye tracking system were adopted. The subjects of this study were 20 students from the sixth grade who agreed to participate in the research. SMI was used to collect EMD (eye movement data). Experiment 3.2 and BeGaze 3.2 programs were used to plan experiments and analyze EMD. As a result, eye movements of participants in discrimination tasks varied greatly in counts and duration of fixation, first fixation duration, and dwell time, according to students' science achievement and difficulty of the problems. By the analysis of EMD, strategies of the students' problem-solving could be found. During problem solving, subjects' eye movements were affected by visual attention; bottom-up attention, top-down attention and convert attention, and aflunter attention. In conclusion, HAM was developed, and it is believed to help in the development of a science learning program for underachievers.

• Korean Journal of Plant Taxonomy
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• v.45 no.1
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• pp.72-95
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• 2015

In order to illustrate the flora of vascular plants distributed in the area of Mt. Hambaek-san and its neighboring mountains, the authors collected vascular plants intensively on Mt. Hambaek-san (1,573 m), Mt. Geumdae-bong (1,418 m) and Mt. Daedeok-san (1,307 m) from April of 2012 to August of 2014. All of them consisted of 90 families, 310 genera, 532 species, 4 subspecies, 73 varieties and 13 forms, with a total of 622 taxa. The total number of vascular plants in the investigated area was 808 taxa (17.55% of all vascular plants in Korea) with the addition of voucher specimens from previous investigations. Among the collected plants, endemic ones were 21 taxa, rare and endangered ones 26 taxa, naturalized ones 30 taxa, useful ones 464 taxa, and floristically specific ones of Korean floristic zones 62 taxa except for species of the first and second grade. Among the floristic zones of the Korean Peninsula, this investigated area showed the typical vegetation of a temperate middle province into which more northern elements than southern elements flowed.