• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.3
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• pp.383-389
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• 2007

The purpose of this study was to investigate the prevalence of severe early childhood caries and feeding pratices in preschool children. The subjects of study were six hundred and seventy-two preschool children in Iksan city. Severe early childhood caries(S-ECC) was defined as the presence of one or more cavitated, missing due to caries, or filled smooth surfaces in primary maxillary anterior teeth. The caregivers of children were given a questionnaire including age, gender, birthweight, and feeding practices. The prevalence of S-ECC was 34.5%. The prevalence was significantly higher when there were the habit of sleeping while feeding, the habit of feeding sour or sweet content in the bottle, and the habit of using the pacifier. Birth weight, breast-feeding, bottle-feeding, and the sippy cup habit showed no significant association with the prevalence of S-ECC. There were significant positive associations between breast-feeding and sleeping while feeding, between bottle-feeding and the pacifier, between sleeping while feeding and sour or sweet content in the bottle, between sleeping while feeding and the sippy cup, between sleeping while feeding and the pacifier, and between the sippy cup and the pacifier. There were significant negative associations between breast-feeding and the pacifier.

• Journal of Popular Narrative
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• v.25 no.2
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• pp.73-116
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• 2019

In recent years, television dramas have adopted an emerging approach of imagining a just society via fantasy. This study set out to examine by stages the patterns of social justice in I Hear Your Voice, Pinocchio, and While You Were Sleeping written by Park Hye-ryeon, who has been leading this trend. I Hear Your Voice shows why social justice is needed, as it is set against the backdrop of a society in which legal justice has collapsed. In this drama, the collapse of the legal justice system indicates that democratic society is falling apart at the roots. As a result, pain and suffering is propagated among the petit bourgeois, with social justice being demanded as an alternative to this problematic reality. The supernatural power of reading the thoughts of others is used to remind viewers of the value of truth and trust and raises the possibility of the existence of a true heart as an alternative from a social justice perspective. Set in a society in which media justice is distorted, Pinocchio makes an attempt at changing ideas about social justice. In this drama, the corrupt media justice covers up truth and becomes a parasite to power, creating victims that are falsely accused. In this situation, the Pinocchio Syndrome, which makes people hiccup when telling a lie, shows paradoxically that truth can be distorted, and ultimately destroys absoluteness that is not truth. Finally, While You Were Sleeping inherits the world views of the two previous dramas and proposes a type of social justice called 'common good' as an alternative. A completely unfair society is created when legal justice collapses and media justice is distorted. In this situation, the ability to see the future is an ability to imagine a world of possibilities. Altruistic choices based on trust in others help us to realize a positive future. Social justice as common good to enable solidarity among subjects in a way that transcends the limitations of time and space is proposed as an alternative to overcome the problem of an unfair society. Given the recent reality of South Korean society, this common good and these ways of life might literally seem like a fantasy. When social justice is represented by efforts and reconstruction processes to overcome the current social issues and make a better future, common good based on the understanding and sympathy of others can be an alternative to improve a reality that is problematic at its root. Ultimately, Park's three works explore the feasibility of a just society that is yet to come from the aspect of the common good.

• Korean Journal of Human Ecology
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• v.18 no.1
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• pp.113-122
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• 2009

This study aimed to examine the urban families and rural families in tenns of life styles on Saturday-with-no-school. The subjects were the 386 parents whose children were in the first or second grade in rural or urban area. The instruments of analysis were time diary method and parents' stress scale developed by Kim & Kang(l997). The main results were as follows: First, in comparison with urban children, rural children spent more time in viewing TV and playing computer but spend less time in sleeping. field trip and cleaning on Saturday-with-no-school. Second, the difference of child-rearing time between mothers and fathers was less marked in urban area than in rural area. Rural fathers spent more time in watching TV or playing computer, while rural mothers spent more time in feeding and bathing of their children, helping their children do homework, and total child-rearing. Third, unlike urban parents, rural parents ddid not have much parenting stress on Saturday-with-no-school. These results show that there is a need to focus on rural parents in the preparation for introduction of 5 days-school-week system.

• Journal of Internet of Things and Convergence
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• v.8 no.6
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• pp.27-33
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• 2022

Sleep is an essential factor for living a healthy life, but most modern people complain of poor sleep. For these people, as the need for a means to simply evaluate and manage the quality of sleep increases, devices that can check the sleep state at home without monitoring by an examiner are being developed. The smart sleep mask, which is the subject of this usability test, provides bio-signal monitoring while sleeping so that you can conveniently measure and manage your sleep state for yourself. The purpose of this study is to evaluate the usability and safety of the smart sleep mask, to find and prevent potential factors related to errors in use that may occur, and to develop the comfort and safety of this product. As a result of the formative evaluation of the sleep mask prototype, it was reported that it was difficult to turn on the power and check the results, and that the sleep mask was not comfortable to wear. Different opinions were presented on the size and weight of the sleeping mask by people in different age groups.

• Journal of Environmental Health Sciences
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• v.46 no.1
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• pp.103-109
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• 2020

Objectives: Using as a sleep evaluation tool the Pittsburgh Sleep Quality Index (PSQI), this paper studied the effects of earthing on the amount and quality of sleep by examining a patient population of people who used and did not use earthing mats and a group of general healthy people. Methods: From September to November 2019, 30 patients who voluntarily used an earthing mat, 40 patients who did not use an earthing mat, and 40 healthy people who did not use an earthing mat were selected. A questionnaire applying the PSQI (Pittsburgh Sleep Quality Index) after being translated into Korean was distributed starting November 29, 2019 to 110 subjects. Out of them, 101 subjects who completed the questionnaire were examined. All statistics used SPSS 25.0. Results: The first overall score showed that all three groups had problems sleeping, with five points or more, but the general population had better sleep quality than the patient group. It also showed that the using matgroup had better quality of sleep than the ones that did not use the earthing mat In addition, the analysis of the third group through the variance analysis showed significance at >0.05 for the general population and the patient group. Based on this, a multi-comparison analysis of the third group showed significantly less than 0.05 in patients who do not use an earthing mat compared to the public. First of all, there are no statistically significant differences between the three groups in subjective sleep quality, sleep latency, and sleep time, but an analysis of multiple comparison analysis with the general population group showed that the quality of sleep was worse compared to those that used the mat. In addition, sleep efficiency, sleep disorder, sleeping pills, and daytime dysfunction were found to be less than >0.05 in the three groups. Conclusions: These results suggest that if you ground your body to Earth during sleep, the secretion of cortisol will decrease night levels, sync more with the natural 24-hour circulation rhythm profile, and that when you sleep, sleep is better and pain and stress are associated with the study. While the preceding study cannot confirm that contact with the ground affects the quality of sleep, it suggests that it is relevant as shown in this paper.

• Journal of Popular Narrative
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• v.26 no.1
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• pp.9-39
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• 2020

The aim of this study is to examine how heroic characters with supernatural powers are portrayed, and what shortcomings and desires are present in the societies they are born into, with reference to television series with superheroes such as , , and out of many motifs of Korean television fantasy series. The common feature of the superheroes represented in these three dramas is that they are viewed as monsters symbolizing vigilance and alienation instead of being regarded as typical heroes that are the object of praise and admiration. All three dramas criticize the corruption and limitations of bureaucratic powers such as the judiciary, prosecution, and police. The protagonists showcase their heroics by correcting such problems and helping the weak and the victimized by using their supernatural powers. At the same time, they broach uncomfortable topics, highlight truths that some may wish to hide, and also argue the concept of 'normality' and the 'world of naturalness'. For this reason, they are treated as monsters and alienated. Despite being called upon to solve the problems in reality, the deficiencies and contradictions of our society are also revealed by them. The idea of expressing the repressed desires in reality, is similar to the attributes of fantasy in that it criticizes and overthrows reality in order to meet the desires. This study verified not only the subversive characters of fantasy, but also the limitations when such attributes were combined with the characteristics of the medium of television shows. The significance of this study is to give attention to a genre that had previously been neglected by Korean productions but is now gaining traction, and also to suggest many tasks for researching more subdivided and diversified fantasy dramas in the future.