• Journal of Gifted/Talented Education
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• v.23 no.2
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• pp.275-287
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• 2013

The purposes of this study were to inquire the status of academic integrity of the student in mentorship program at a science gifted institute attached to university and to seek the teaching plan of academic integrity. We administered questionnaire to 51 students who passed the enterance exam of mentorship program at the science gifted institute in 2013. The questionnaire consisted of three topics, 1) using reference, 2) purchasing, deputizing & plagiarizing of homework, 3) cooperative learning. As results of survey, students have a ethic in the following order: 'purchasing, deputizing & plagiarizing of homework', 'using reference', and 'cooperative learning'. Especially, the lack of conscious about 'cooperative learning' turned out to be a problem, because students have to research by cooperative learning during mentorship program. And there was no significant correlation between each topic. Finally, there was no correlation between ethical knowledge and degree of practicing it.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.3
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• pp.408-417
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• 2017

The objective of this study is to examine the structural relations between physical self-efficacy, depression, and ego-integrity among the elderly (60 years and older) currently participating in leisure sports. In addition, since the variables affecting ego integrity are presented in a multidimensional manner, it is very important to examine the cause and effect of the variables from an integrated perspective. To achieve this objective, 427 senior citizens attending the leisure sports program of a seniors center were assigned as the research subjects. For the structural equation modeling performed in the study, confirmatory factor analysis and reliability analysis were conducted for each variable, and direct, indirect, and total effects were estimated. The model fit is based on TLI, CFI, and RMSEA, and both the fit of the measurement model and the fit of the research model satisfy the criterion. The results of the analysis are as follows. First, in the results of verifying the validity and reliability of the questionnaire, all the variables of physical self-efficacy, depression, and ego-integrity were suitable. Second, the perceived physical ability had positive effects on depression, current life satisfaction, wise life, and attitude toward life, whereas the physical self-expression confidence had positive effects on current life satisfaction and attitude toward life, but negative effects on acceptance of the past life. Lastly, depression had negative effects on current life satisfaction. The results showed that the elderly identified the integrated relationship of physical self - efficacy, depression, and self-integration.

• Korean Journal of Agricultural Science
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• v.49 no.1
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• pp.103-112
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• 2022

Fipronil is a popular insecticide used in both agricultural and domestic fields. Factors that affect sperm and eggs have a direct influence on reproductive outcomes. This study was undertaken to assess the effect of varying concentrations (10 - 200 μM) of fipronil and incubation times (30 min and 2 hrs) on boar spermatozoa. Spermatozoa were evaluated for motility, motion kinematics, viability, chromatin stability, and for the generation of intracellular reactive oxygen species (ROS) and the results were compared to those from corresponding controls. The findings revealed a significant, dose-dependent reduction in sperm motility in all fipronil treatment groups at 30 min of incubation (p < 0.05). A similar dose-dependent reduction in sperm motility was observed subsequent to fipronil exposure for 2 hrs of incubation (p < 0.05). Groups treated with fipronil showed a gradual reduction in motion kinematics (p < 0.05). Moreover, a significantly higher percentage of dead sperm was observed at 200 μM fipronil, as compared to the highest live percentage obtained in controls (p < 0.05). Evaluating the sperm chromatin integrity revealed a significantly higher percentage of damaged chromatin in spermatozoa incubated with 200 μM of fipronil. Moreover, ROS production was significantly higher in fipronil-exposed sperm (p < 0.05). In conclusion, boar spermatozoa incubated with fipronil showed decreased levels of sperm motility and viability, weaker chromatin integrity, and increased levels of intracellular ROS generation, all of which indicate that exposure to fipronil potentially impairs the fertilization competence of boar spermatozoa.

• Korean Journal of Agricultural Science
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• v.51 no.2
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• pp.109-121
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• 2024

Mancozeb is a manganese and zinc-containing fungicide that belongs to the ethylene bisdithiocarbamate group and produces ethylene thiourea (ETU) after biotransformation or environmental degradation, which has toxicological hazard owing to its known antithyroid properties. Although mancozeb leads to negative changes in fertility capacity, the effects of ETU are less known. Therefore, this study examined the alteration of fertilization competence in boar spermatozoa exposed to ETU. The sperm motility, motion kinematics, viability, acrosome integrity, chromatin stability, and intracellular reactive oxygen species (ROS) production of sperm subjected to various ETU concentrations (10, 50, 100, and 200 µM) were evaluated after two different incubation times (30 min and 2 hrs). In addition, the relative mRNA expression of the sperm functional proteins was analyzed after exposure to ETU. A dose-dependent motility reduction was observed in sperm exposed to ETU during both incubation periods compared to the controls. The motion kinematics were reduced significantly in sperm incubated with ETU. Higher percentages of viable sperm were observed in the controls, while such viability was decreased significantly in sperm with 10 - 200 µM ETU. The acrosome integrity was particularly damaged on sperm incubated with 10 - 200 µM ETU for 30 min. Higher intracellular ROS levels were produced in sperm exposed to 200 µM ETU. In addition, lower relative levels of AKAP3, AKAP4, ODF2, and ZPBP2 expression were observed in sperm exposed to ETU compared to the controls. Mancozeb and ETU could adversely affect the reproductive functions of mammals. Hence, the effects of ETU on the reproductive system should be examined further.

• The Korean Journal of Community Living Science
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• v.19 no.2
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• pp.235-244
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• 2008

The purpose of this study was to examine the elderly generation's understanding of game information and for recognition of computer based games as a recreation activity for the mid-to late adults. This study investigated game use and personal thoughts about the influences of computer games on each generation. The study was conducted by survey with the subjects being 242 adults aged 40 to 72 living in Busan and Kyung-nam area. Findings indicated that 43.5% of adults used computers to access games. The purposes for computer use were: business, searching portal sites, and games. 44.8% of adults knew about game information education. 67.4% of adults who had someone as a game information resource reported that their children provided the game information. Most adults used arcade games and recognized the influences of game information as positive to adults and the elderly but negative to children and adolescents. Finally, the adults aged "after mid-life" who knew about game information education showed higher ego-integrity and psychological well-being. These findings have implications for the development of elderly education programs aimed at promoting quality of life for older adults.

• Hwankyungkyoyuk
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• v.23 no.2
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• pp.46-64
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• 2010

The purpose of this study is to analyze how the contents of education for sustainable development are reflected in the middle school environment curriculum revised in 2007, and to propose how to integrate content for improving sustainable development education. For this, I analyzed the 2007 Revised Environment Curriculum for Middle Schools by using social network analysis which is the useful methodology to understand the relations of contents. Social Network analysis is a useful tool to excavate the forms of structure or relationship and to explain the characteristics of the system that arise through relationships or to explain the units composing the system. When sustainable development education was examined from 3 points of view, it included environmental sustainability, economical sustainability, and social sustainability. I used the 2007 Revised Environment Curriculum for Middle Schools and manual of curriculum for analysis. The results are 1) The biodiversity conservation and energy efficiency have taken most important positions. 2) In case of economical sustainability pillar, sustainable production had been emphasized. 3) In the case of the social sustainability pillar, health improvement are considered significant. 4) The efforts of trying to approach sustainable development education as an integrated curriculum is week. Integrated themes based on the results were developed. Five main themes were the energy and climate change, water resource and environmental pollution, sustainable village and sustainable food production, sustainable city and sustainable production, sustainable tourism and biodiversity. I hope these could function as theme of integrated-content. Based on the results of study, I propose joint researches on scope of sustainable development for environmental education.

• 한국노년학
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• v.28 no.4
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• pp.1227-1248
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• 2008

In this study, death preparation was used as an independent variable, with ego integrity as successful aging used as a dependent variable while depression and death anxiety were used as mediate variables. The purpose of this study is to investigate the differences of the study variables according to the demographic characteristics of the research subjects, and to create a database for developing and improving current educational programs and welfare services to help the elderly achieve successful aging. Two hundred and eighty three elderly people above the age of sixty in Cheongju city were given standardized questionnaires, and the collected data were analyzed. The results of this study are the following. First, the differences of the study variables according to the level of education, health, economy, and social involvement of the elderly are statistically significant. Second, there exists a positive relationship between mental preparation for death and ego integrity (successful aging) while there is no such relation in case of formal preparation for death and ego integrity. Third, depression and death anxiety of the elderly partially mediate ego integrity, which leads to successful aging.

• Journal of Cancer Prevention
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• v.21 no.2
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• pp.95-103
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• 2016

Background: Excess energy supply induces chronic low-grade inflammation in association with oxidative stress in various tissues including intestinal epithelium. The objective of this study was to investigate the effect of high-fat diet (HFD) on intestinal cell membrane integrity and intestinal tumorigenesis in $Apc^{Min/+}$ mice. Methods: Mice were fed with either normal diet (ND) or HFD for 12 weeks. The number of intestinal tumors were counted and biomarkers of endotoxemia, oxidative stress, and inflammation were determined. Changes in intestinal integrity was measured by fluorescein isothiocyanate (FITC)-dextran penetration and membrane gap junction protein expression. Results: HFD group had significantly higher number of tumors compared to ND group (P < 0.05). Blood total antioxidant capacity was lower in HFD group, while colonic 8-hydroxy-2'-deoxyguanosine level, a marker of oxidative damage, was higher in HFD group compared to that of ND group (P < 0.05). The penetration of FITC-dextran was substantially increased in HFD group (P < 0.05) while the expressions of membrane gap junction proteins including zonula occludens-1, claudin-1, and occludin were lower in HFD group (P < 0.05) compared to those in ND group. Serum concentration of lipopolysaccharide (LPS) receptor (CD14) and colonic toll-like receptor 4 (a LPS receptor) mRNA expression were significantly higher in HFD group than in ND group (P < 0.05), suggesting that significant endotoxemia may occur in HFD group due to the increased membrane permeability. Serum interleukin-6 concentration and myeloperoxidase activity were also higher in HFD group compared to those of ND group (P < 0.05). Conclusions: HFD increases oxidative stress disrupting intestinal gap junction proteins, thereby accelerating membrane permeability endotoxemia, inflammation, and intestinal tumorigenesis.

• Journal of Digital Convergence
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• v.16 no.3
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• pp.353-362
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• 2018

The purpose of this study was to investigate the effect of character strength and self-efficacy on subjective happiness of adult learners of distance nursing education. The subjects were 261 adult learners of Bachelor Science in nursing course for Registered Nurse of a national open university. The mean score of subjective happiness of subjects was a little lower. 'Transcendence and Humanity' among Character Strength was the highest and 'Justice' was the lowest. Multiple regressions showed that positive integrity, hardiness, and perceived health status explained 38.0% of subjective happiness and positive integrity was the main influencing factor. The learning supporting strategies focusing on reinforcing these factors are needed to improve the subjective happiness of nurses who are continuing their learning through distance education.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.433-441
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• 2018

The purpose of this study is to understand the effect of psychosocial support, death preparedness, and ego integrity on death anxiety in old people. The participant of this study were the elderly who attended welfare centers, worked in their workplaces, or lived at their home in Seoul regions, from whom this study had collected their data from February to May 2017. A total of 350 questionnaires were distributed and 329 copies of them were used for its final analysis using SPSS 24.0 and AMOS 20.0 statistical programs. According to the results of this study, psychosocial support had no statistically significant effect on death anxiety, whereas death preparedness and ego integrity had statistically significant effects on death anxiety. Based upon these research results, this study suggested that it is necessary to develop death education and counseling programs as policy supports and practical methods for helping old people to accept their death positively, reintegrate their ego, and perform their successful aging.