• Journal of Technologic Dentistry
• /
• v.30 no.1
• /
• pp.83-96
• /
• 2008

This study aims to analyze the major factors in their working conditions affecting the enlargement of leisure activities of dental technicians. We also present a need for dental technicians to assign more time many different kinds of leisure activities for their quality life. To this end, we examined the status and the characteristics of dental technicians' leisure activities among the randomly selected subjects who are working in the area of Seoul, Gyonggido, and Gangwon-do through the analysis of the 311 sheets of self-administered questionnaires. The conclusions from this analysis are as follows; 1. On weekdays, non participants in leisure activities were found to be 64.0%, and in the case of weekends, the participants were reached to 70.7%. Those who enjoy any leisure activities in either of weekdays and weekends were 34.1%, 27.3% of the dental technicians did not have any leisure activities. Therefore, statistical significance was shown in the participations of leisure activities between weekdays and weekends. 2. Of the types of leisure activities in both weekdays and weekends, sports activities were ranked at the top 33.4%, 29.6% respectively, which is followed by going to the cinema/theatre/exhibitions, etc 21.9%, 26.0%, games/entertainment 14.5%, 14.8%, hobbies/cultural activities 14.1%, 12.5%, sightseeing/picnic 6.4%, 7.4%. 3. Of the differences in the characteristics of leisure activities, the types of leisure activities between weekdays and weekends showed difference in gender, company and information regarding leisure activities in age, company and the place of leisure activities, and leisure information in the marital status, career and monthly income in company, company and leisure information in the job position, which is statistically significant (p<.001). However, no statistical significance was found among the other general items of the characteristics of leisure activities. Considering only works on weekdays policy is currently permeating into almost every business sector, dental business owners or managers are advised to consider more effective time management or human resources management, such as keeping reasonable manufacturing time through cooperations with the dentists, regularity of working hours, incentive system, introduction of credible over time payment. Which will provide their staff with more times and opportunities to enjoy their leisure activities. Additionally, the concrete and feasible ways of motivating and activating the leisure activities of dental technicians are in need of further researches and studies.

• Journal of Environmental Policy
• /
• v.10 no.1
• /
• pp.3-25
• /
• 2011

Recently, a number of local governments as well as private organizations have spearheaded the release of animals into the natural ecosystem in Korea. In 2002, most of these animals released were mammals and birds, but the parameter was gradually expanded to include fish, amphibians, and invertebrates in addition to mammals and birds in 2007, with an increased overall number of animals released. Such increase has not only posed ecological, economic, and public health risks, but also yielded an increase in damages incurred by releasing animals historically or ecologically alien to a given region without thorough risk assessment. The most significant cause of such risks was a critical lack of risk management and regulatory schemes addressing the release of animals into the natural ecosystem. In stark contrast, developed countries long before established the requisite risk management and regulatory schemes either by complying with the IUCN/SSC's Guidelines for Re-Introductions or devising them independently. In this context, the current study has examined the release of animals into the natural ecosystem in Korea and, based on the investigation, asserted a strong need for proper risk management. Moreover, the study has presented systematic risk management and regulatory schemes suitable for the Korean milieu based on a comparative analysis of those employed in developed countries.

• Journal of Digital Convergence
• /
• v.15 no.5
• /
• pp.129-138
• /
• 2017

Faced with the era of the IoT (Internet of Things) and smart homes, this study aims to explore the type of information loaded on smart devices that can lead to consumer's efficient energy use. 105 Americans participated in the survey with eight different versions according to two energy consumption levels (Above or Below condition) by four information frames (Finance, security, environment, or health). It was found that frames can make significant differences in consumers' attitudes; (1) Those in the Below condition worried about environments more than those in the Above condition; (2) Finance-framed information in the Above condition was the least effective to increase consumers' energy saving motivation; (3) In the Below condition, those receiving finance and security framed information revealed more environmental concerns than those receiving other types of informations. This study can contribute to the field by providing with basic research findings that smart device developers can refer to in the future. Also, follow-up studies need to be conducted to examine effective messages for Korean energy consumers.

• The Korean Journal of Pesticide Science
• /
• v.15 no.4
• /
• pp.357-365
• /
• 2011

Exposure measurement of agricultural worker to pesticide is one of important part of health risk assessment of pesticide. Therefore exposure matrices, apparatus, instruments and methods must be validated in advance to field experiment. In this study, method validation with an organophosphorus insecticide fenthion was carried out for exposure monitoring of agricultural worker. LOD and LOQ were 0.01 and 0.05 ng, respectively. Calibration curve linearity ($R^2$ > 0.999) and reproducibility (C.V. < 3%) were also excellent. Recovery at LOQ, 10LOQ and 100LOQ levels from gloves, socks, mask, patch, solid sorbent, glass fiber filter was 76~113% (C.V. < 3%). Trapping efficiency was 95~105% while no breakthrough was observed. Method validation for the exposure monitoring was established successfully through several experiments. Such method validation can be usually performed in laboratory and not much different for each pesticide so that, this techniques will be applied widely in research for pesticide exposure monitoring by combination with body surface area and respiration rates.

• Ecology and Resilient Infrastructure
• /
• v.2 no.3
• /
• pp.191-197
• /
• 2015

Invasive alien species are considered to be one of the main factors that cause biodiversity loss. Establishment of management strategies through continuous monitoring and risk assessment is a key element for invasive alien species management policy. In the present study, we introduce examples of ecological risk assessment tools developed in Japan, Germany-Austria and Belgium. Invasive alien species have been designated in Japan based on the assessment of risks to ecosystems, human health and primary industry. German-Austrian Black List Information System categorized alien species into Black List, White List and Grey List according to their risks to biodiversity. In the Harmonia Information System developed in Belgium, invasiveness, adverse impacts on native species and ecosystem functions and invasion stages were assessed and alien species were categorized into Black List, Watch List and Alert List. These international risk assessment tools may be helpful to improve our national risk assessment protocol for the prioritization of invasive alien species management.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.1
• /
• pp.685-697
• /
• 2020

This study conducts meta-analysis of the effect size of related factors using research papers published within the past 20 years in relation to adolescent bullying experience in Korea. The verification results are as follows. First, in inducing factors, the overall effect size, personal psychology factor, and school life factor group showed a medium effect size. In the causative factors, the aggression, anxiety, stress, depression, suicidal thoughts, and school stress of school psychological factors showed a moderate effect size. Second, in terms of deterrent, the overall effect size, family environment factor, personal psychology factor, and school life factor group showed a medium effect size. In the sub-factors of determinants, the parenting attitude, parental support, and self-esteem and self-resilience of the family environmental factor group also showed a medium effect size. In conclusion, this study is meaningful in that it tried to quantitatively integrate the previous studies to examine objective results. It is meaningful that it provided basic data in program development and policy making to prevent and reduce the bullying of youth.

• Journal of Digital Convergence
• /
• v.19 no.7
• /
• pp.397-408
• /
• 2021

The purpose of this study is to investigate the effect of teaching style of liberal arts physical education professors to class satisfaction, Class flow and physical education attitude of liberal arts students. A study was conducted on a total of 221 liberal arts students. For the collected data, a confirmatory factor analysis and reliability analysis (Cronbach' α) for the measurement tool were performed using the SPSS 26.0 and Amos 21.0 programs. And correlation analysis and multiple regression analysis were performed. The liberal arts physical education Professor's teaching stlye affects the student's class satisfaction (educational satisfaction, environmental satisfaction, psychosocial satisfaction, physical satisfaction), and students' class flow (class immersion, purpose experience, consciousness agreement, challenge, control, Integration). In addition, it has various effects on the student's attitude toward physical education(relationships, physical activity, active participation, health and physical fitness, positive emotions). Efforts to strengthen the competence of liberal arts physical education professors will be needed to revitalize the liberal arts physical education.

• Journal of Digital Convergence
• /
• v.17 no.3
• /
• pp.261-269
• /
• 2019

The purpose of this study is to present the effective management strategy of RI based on the results of research on the causal relationship between the regional medical care capacity and the hospital management performance by calculating the RI of the general hospitals in Korea, This research has significance. The results of this study are as follows: First, statistically significant differences were found in Number of beds and recurring profits in urban areas by the general characteristics. Second, the correlations between the RI and the variables of the regional medical use are as follows: Recurring profit ratio, New Outpatient Visits, Operating Margin, Daily Outpatient Visits per 100 Beds, Daily Inpatient Days per 100 Beds, and Average Charge per Inpatient Day. Based on the results of this study, the significance of this study is as follows. First, we calculated the affinity for local medical use, which is the index of local medical utilization. Secondly, it is analyzed according to internal and external environmental factors such as city size, hospital size, etc. It can be said that the hospital provided basic data for establishment of hospital management strategy to increase the utilization rate of local medical care.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.42 no.4
• /
• pp.581-590
• /
• 2022

It is important to create a decent pedestrian space in order to realize a public space that can ultimately improve the quality of life based on guaranteeing people's right to move while also enhancing urban activity. The goal of this study is to develop a pedestrian path evaluation system in order to lay the foundation for data construction leading to the creation of such elegant walking space. First, a basic system was established in keeping with factors and the space, and this system was used as the basic framework of the study. The trends identified in the literature can be divided into eight categories, denoted here as: Walking safety policy, Walking focused plan, Recognition transition, Transportaion system, Activity-linked walking, Facility utilization walking, Nature and history linked walking and Content convergence walking. The macro- and micro-indices and factors mentioned in related studies were synthesized and classified, and the basis for universality and differentiation was established by integrating them. Next, according to the basic composition of the walking system, Walking potential and slope safety in the Safety category, Basic walking connectivity and Traffic linkage in the Efficiency category, Walking arrangement and Rest convenience in the Health category, and Resource connectivity and Activity abundance in the Comfortability category macro evaluation system of the eight categories were established and a corresponding measurement method was developed.

• Journal of Environmental Impact Assessment
• /
• v.28 no.2
• /
• pp.101-112
• /
• 2019

Over the last few years, air pollution ($PM_{10}$, $PM_{2.5}$) in the Seoul metropolitan area (SMA) has emerged as one of the most concerned and threatening environmental issues among the residents. It brings about various harmful effects on human health, as well as ecosystem and industrial activities. Governments and individuals pay various costs to mitigate the level of air pollutants. This study aims to empirically find the willingness to pays (WTP) among the parents from different socio-cultural groups - international and domestic groups to mitigate air pollution ($PM_{10}$, $PM_{2.5}$) in their residential area. Contingent Valuation Methods (CVM) is used with employing single-bounded dichotomous choice technique to elicit the respondent's WTP. Using tobit (censored regression) and probit models, the monthly mean WTP of the pooled sample for green electricity which contributes to improve air quality in the region was estimated as 3,993 KRW (3.58 USD). However, the mean WTP between the international group and domestic group through a sub-sample analysis shows broad distinction as 3,325KRW (2.98 USD) and 4,449 KRW (3.98 USD) respectively. This is because that socio-cultural characteristics of each group such as socio-economic status, personal experience, trust in institutions and worldview are differently associated with the WTP. Based on the results, the society needs to raise awareness of lay people to find a strong linkage between the current PM issue and green electricity. Also, it needs to improve trust in the government's pollution abatement policy to mobilize more assertive participation of the people from different socio-cultural background.