• Korean journal of applied entomology
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• v.46 no.3
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• pp.335-341
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• 2007

The main habitats of diving beetles in agricultural ecosystems were identified as ponds, irrigation channels, and reservoirs, where the water system is maintained throughout the year. Four species, Cybister japonicus, Cybister brevis, Hyphydrus japonicus and Noterus angustulus, were selected as biological indicators which can be used to evaluate the healthiness of the agricultural ecosystem. The species number of 4 indicator species, the species number of diving beetle species, and the diversity index were used as factors for environmental evaluation. The evaluation was classified into grades $I{\sim}IV$. The non-fertilizer and non-pesticide agricultural practicing area and the sustainable agricultural practicing area were evaluated as grades $I{\sim}II$, and the general agricultural area to be relatively fine with a grade II. However, the analysis indicated the agricultural areas near a residential area and an industrial complex to be poor with a grade of IV, suggesting that immediate improvement in the agricultural environment is needed.

• Journal of Environmental Science International
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• v.16 no.3
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• pp.357-367
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• 2007

Recently, eutrophication or lake and reservoir has become serious problem to man who want use that water for several purpose. In order to solve the eutrophication problem, the trophic state of that eutrophic lake and reservoir should be measured properly. For the purpose of this, various method to indicate the trophic state of lake and reservoir was developed by many researchers. This research was conducted to evaluate characteristics and eutrophication of water qualitymfor small scale reservoir in Kunsan. On-site investigation to 5 reservoirs and laboratory experiment were carried out during four seasons from November, 2003 to July, 2004. Twelve items measured field ana a laboratory. Measured data was analyzed to quantitative method by multivariate approach and eutrophication index. The result is summarized as following. 1) Showing the characteristics of water quality for reservoir in Kunsan, Okgu reservoir and Oknua reservoir was exceeded 4 grades of agricultural water standard in TP, TN and COD. This means that eutrophication was gone much, therefore, water-purity control of reservoir need. While, Mije reservoir that is used to Kunsan citizens' recreation was good in water quality. But, water quality exceeded 4 grades of agricultural Dater standard sometimes. 2) As a results of correlation analysis between variables of water qualify, Interrelation between variables which is connected with eutrophication was expressed good relationship as above 6.000 in correlation coefficients. The correlation coefficient(r) between COD and chlorophyll-a, total phosphorus and chlorophyll-a, total nitrogen and chlorophyll-a were 0.750, 0.720 and 0.600 respectively. Therefore, Change of water quality can grasp according to eutrophication progress degree. 3) If do evaluate to eutrophication by quantitative method which is proposed by OECD, US-EPA and Forsberg & Ryding, in the case of chlorophyll a, Okgu, Oknua and Daewi reservoir was eutrophic state and Mije and Geumgul reservoir was mesotrophic state. But, estimation by TN and TP showed highly eutrophic state (hypereutrophic) in all reservoirs. 4) If do evaluate by eutrophication index which is Carlson's TSI, revised carlson TSI and Walker's index, in the case of chlorophyll a, TSI values of Okgu, Oknua and Daewi reservoir is eutrophic state more than 50 and Mije and Geumgul reservoir was mesotrophic state as range of $40{\sim}50$ in TSI value. But, in the case of TP as nutrients, all reservoirs showed highly eutrophic state which was exceed to 70 in TSI value. According to above results, the water quality for small scale reservoirs in Kunsan is progressing by trophic state. therefore, for continuous use as agriculture water, we had better do establishment of management plan about water quality.

• Journal of Preventive Medicine and Public Health
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• v.18 no.1
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• pp.99-112
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• 1985

It was measured to check the state of health education by the survey of the items related to the health with the first grade of students in middle school who mastered elementary courses. Totally 50 questions, which were selected from Standard and Dong-A reference books, were given to teachers and have got answered by the students who were totally 959(491 from urban areas and 468 from rural areas). It's done just after they entered middle school for a month, from April 10 to may 10, 1984. There were totally 782 items of health in all subjects of all grades. In contents, the most cases were about mental and emotional health(17.7%), exercise and rest (15.1%), environmental health, health life, personal health care, nutrition and foods, social health and organization, physiology and anatomy, statistics of public health population problem, disease and care, food sanitation, school health, parasitic and communicable disease control, eugenics and heredity(0.4%), etc were followed. In subjects, Korean language had 44.7% of mental and emotional health in 114 cases, arithmetics 46.4% of statistics of public health in 26, sociology, 23.1% of environmental health in 118, natural science, 60.1% of physiology and anatomy in 30, ethics, 40.3% of mental and emotional health in 176, music, 21.8% of mental and emotional health and accidents in 23, art, 42.9% of exercise and rest in 28, physical education, 38.6% of exercise and rest in 201, practical course, 36.2% of nutrition and foods in 61, and there was nothing but only one case in Korean history. Subjects in total cases of health informing items are below: Physical education 25.8, ethics 22.5%, sociology 15.1%, Korean language 14.6%, practical course 7.8%, natural science 3.8%, art 3.6%, arithmetics 3.3%, music 2.9%, Korean history 0.6%. Grades in total cases of health informing items are belows: the sixth grade 29.1%, the fourth grade 21.2%, the fifth grade 18.9%, the third grade 11.6%, the first grade 11.5%, the second grade 7.7%. The sections related to health matters were average 35.4%. According to the grades, the fourth and the sixth grade were 38.2% each other, the highest, and the second grade was 29.3%, the lowest. All scetions in physical education included them. The acceptability to the knowledge for health was belows: 56.3% in urban students and 53.9% in rural students. There was some difference in acceptability between two parties (p<0.005).

• The Journal of the Convergence on Culture Technology
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• v.8 no.4
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• pp.53-60
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• 2022

This study attempted to find out the differences in care efficacy according to MBTIs in nursing students. The study subjects are 109 students in grades 3 and 4 of nursing departments at 1 university in Gyeongnam Region. Data analysis was performed with independent t-test and one-way ANOVA. The general characteristics that showed significant differences in care efficacy as a result of the study were major satisfaction (3.63, p<.001), practice satisfaction (4.49, p=0.013), and health status (2.91, p=0.004). The MBTI, which showed a significant difference in care efficacy, was an EP type (3.74, p=0.013) among the attitude indicators. We believe that the results of this study will serve as a basis for educational programs to improve the efficacy of care. Suggest repeated studies that apply large samples to generalize research for follow-up research, educational programs that apply MBTIs to improve care efficacy, program effectiveness analysis studies, and research on the development of tools to measure care efficacy.

• Journal of Families and Better Life
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• v.25 no.2 s.86
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• pp.47-58
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• 2007

The purpose of this study is to examine children's/adolescents' motives for playing internet games and adaptation to school in accordance with their frequency levels of playing internet games. Participants were 236 children from grades 4, 5, and 6 in two elementary schools and 237 adolescents from grades 1, 2, and 3 in one middle school. They were measured on frequency levels of playing internet games, motives for playing internet games, and adaptation to school. Collected data were analyzed by SPSS WIN 12.0 for reliability, frequency, Chi-square test, t-test, Pearson's correlation, and one way ANOVA. Major findings of the research are as follows: First, children's/adolescents' frequency levels of playing internet games differed by their gender. The male ratio was much higher than the female ratio in the potential risk group and the high risk poop. In contrast, no grade differences on the frequency levels of playing internet games were found. Second, children's/adolescents' motives for playing internet games differed by their gender. Especially, among the motives the greatest difference between male and female was marked for 'Social Relationship'. Third, children's/adolescents' motives for playing internet games differed by their frequency levels of playing internet games. For 'Conformity,' the low risk group differed from the high risk group. For 'Spending Time', 'Benefit', 'Competition', and 'Social Relationship', the low risk group differed from the potential risk group and also from the high risk poop. Fourth, children's/adolescents' adaptation to school differed by their frequency levels of playing internet games. The high risk group exhibited a low level of adaptation in 'Academic Activities', 'a subcategory of adaptation to school.

• Journal of environmental and Sanitary engineering
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• v.18 no.2
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• pp.75-86
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• 2003

This study was designed to identify the relationship between general characteristics and personalities of college students majoring in beauty art. For this, 286 female students from two colleges in Kwangju were interviewed using a questionnaire pertaining to their general characteristics, hair-style and personality from September 20 through 30, 2001. A $x^2{\;}-{\;}test$ was implemented to identify the relationship between hair-style, personality and other variables. The results are summarized as follows: 1 To define characteristics in relation with hair-style, how students decide their hair-style was examined and, as a result, it was reported that 80.8% of targeted students decided by themselves and 19.2% decided by others' suggestions. 2. It is reported that there was no statistically significant relationship among socio-demographic characteristics such as the length of hair, grades, allowances, religion, satisfaction of campus life, and characteristics relating to hair-style such as accessories, mood, shape of face, decision of hair-style, and texture of hair. 3. Their preference of perm type had a statistically significant relationship with their allowance, religion and accessories, but not with their grades, satisfaction of campus life, mood, shape of face, hair-style, and texture of hair. 4. Dye and bleach had a statistically significant relationship with the texture of hair, but not with socio-demographic characteristics and accessories, mood, shape of face and decision of hair-style. 5. Personality of tenacity, extroversion and introversion, emotion and falsehood had no statistically significant relationship with hair-style. Finally, it was proven that strength, extroversion and introversion, emotion and falsehood had no statistically significant relationship with hair-style. More studies to identify personal tendencies that may affect hair-style are necessary.

• Korean Journal of Community Nutrition
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• v.3 no.2
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• pp.190-201
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• 1998

This study was carried out with 505(243 boys and 262 girls in the Sungnam area) high school students to investigate the effects of eating behavior and anthropometric variables of weight and height on excercise performance. General characteristics about subjects and eating behavior were surveyed by questionnaire, anthropometric data were collected using two methods. The weight and height of subjects in 1996 were measured, but the same data in 1995 were collected from health records of each student. Body fat content of subjects was measured by BIA(Body Impedance Analysis). The grades of exercise performance, which were evaluated by physical education teachers were collected from records of a physical strength test score of each subject. From these, the following result were found. Groups with different eating behaviors such as skipping meals, overeating, food preference for a specific food(milk, carbonated drink etc.) were significantly different in their weight and height and body fat contents. The growth rate of height in first and second grade boys was significantly higher than that for grade boys. The amount of weight gain from second grade to third grade was significantly more than that of other grades both for boys and girls. The mean of BMI was $21.66\pm{2.95}$ in boy, $21.50\pm{2.62}$ in girls. The percentage of body fat was $24.91\pm{6.55%}$ in boy $34.73\pm{4.88%}$ in girls. Amounts of body fat were significantly increased in third grade. The group with higher fat content and the higher BMI group had lower values of physical strength. And the ability to exercises perform decreased significantly by promotion of grade. The other variables such as degree of concern about weight control and preference of exercise, and frequencies of exercise per week were significant factors in body fat content and physical strength. As a countermeasure for these problems, nutrition and health education must be developed for adolescents and a practical, proper physical activity guidance campaign for them is necessary.

• Journal of Elementary Mathematics Education in Korea
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• v.18 no.2
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• pp.257-278
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• 2014

The concept of zero(0) and calculations involving 0 are a few of the most difficult topics that students experience in learning mathematics. Therefore, it implies that proper guidance to help students understand the desirable concept of 0 and acquire calculating process involving 0 should be provided when we teach numbers and operations. This study aims to investigate instructional situations in relation to the errors of 0 and to search for efficient ways to teach them based on the previous research. To do this, we analysed elementary mathematics textbooks and workbooks. The result showed that $0{\div}$(a number) and the division of which quotient includes 0 as a middle digit lacked in current textbooks and workbooks. We devised the learning activities of the two topics for 3rd grades and 4th grades, respectively. We expect that the activities will be helpful to devise learning activities of textbook and suggest some implications for teaching the calculations involving 0.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.2 no.2
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• pp.169-181
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• 1995

The aims of this study are to identify the perceptions and learning needs related to nursing profession of nursing students and to provide the basic data for development of curriculum. The questionnaire used for this study includes 103 items categorized as the fellowing 8 areas : the perception of nursing profession, competency as a nurse, the perception about clients, priorities in nursing activity, the knowledge required for, an ideology about nursing. Data was collected from the same students through their first grade in 1993 to third grade in 1995. The results are as follows : 1) In terms of the views on nursing profession, most of the students responded it as helping treatment of disease. Higher the grade, more significant with regard to health counseling, utilization of nursing and skills, nursing for community people. 2) Asked about competency as a nurse, sufficient professional knowledge on the nursing was responded as the highest. 3) Asked about the clients of nursing, 'patients' was the highest and as the grade was high, the items on 'family', 'community people', 'community' were high. 4) With regard to the points to be considered in the performance of nursing, while 'physical respect', 'psychological respect' were commonly responded, 'spiritual respect' highly responded in the second and third grades. 5) Asked about what nursing activity is, 'to relieve the pain' was high in the first and second grades, 'the promotion of health' was high in the third grade. 6) With regard to the ideology on nursing, the humanity and belief and faith were commonly responded. These results suggest, even though the expanded role of nursing was recognized, there is the tendency of illness oriented, to be need of reinforcement on the curriculum management in nursing education.

• Child Health Nursing Research
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• v.11 no.3
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• pp.263-272
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• 2005

Purpose: This study was done to identify the scope of internet addiction in school age children in early grades of elementary school in Korea, and to identify factors affecting internet addiction fur these children. Method: The participants were 408 children from in grades 1 to 4 in four urban elementary schools. Data were collected through self-report questionnaires which were constructed to include a parent-child internet addiction test, a self-control rating scale, and a scale of parent control of on-line use. The data were analyzed using the SPSS program. Results: Of the children, $71.6\%$ reported being average on-line users, $27.9\%$, heavy on-line users, and $0.5\%$, internet addicted. Self control and parent control of on-line use for average on-line users were different from that of heavy on-line users. Significant predictors influencing internet addiction were time spent on-line, self control, gender, father's occupation, on-line games, on-line use alone, and conversation with parents. These predictors accounted for $42\%$ of variance in internet addiction. Conclusion: The prevalence of heavy on-line use in children was higher than expected, and internet addiction was influenced by self control, time spent on-line, and related factors. Therefore nursing interventions for prevention and management of internet addiction need to be developed and provided to these children.