• 대한치과의사협회지
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• 제57권12호
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• pp.728-735
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• 2019

Objective: Previous studies suggested the potential influence of YouTube videos regarding dentistry on the mass population. However, there was not any clear investigation for Korean population. We aimed to systemically analyze the type of the dentistry-related videos uploaded on YouTube Korea and the accounts used for uploading, and to assess their effect on the view count of the content. Methods: Classification, type of the accounts, and view count of the videos listed by the keyword 'dentistry' were analyzed, which were uploaded on YouTube Korea platform from September 2017 to April 2019. Kruskal-Wallis test with post hoc analysis was used to assess the effect of the classification of the videos and the type of accounts on the view count. Results: 1.026 videos were enrolled to the analysis. Primary classification of the videos was information/education, advertisement, life, news, child contents, autonomous sensory meridian response, broadcast, cartoon/game, humor, and music. Secondary classification of the videos was dental experience, advertisement, role-playing, information/education., humor, cartoon/game, child contents, life, and broadcast. Type of the accounts was dentistry associates, general public, media company, and government office (sorted by frequency). Subject of the most videos (93.6%) was general public. There was statistically significance in the view count of the videos according to the primary and secondary classifications, the account used for uploading, and target subject of the videos. Conclusion: Dentists and their associates should recognize the importance of YouTube platform and try to monitor and intervene the dentistry-related contents, considering its huge impact on the general public.

• 한국게임학회 논문지
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• 제4권1호
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• pp.3-13
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• 2004

정보 기술과 인터넷의 발달은 물리적인 공간이나 시간에 구애받지 않는 온라인 커뮤니티의 등장을 가능하게 하였다. 이러한 온라인 커뮤니티는 개인 및 기업의 의사 결정에 중요한 수단이 되고 있고 목적에 따라 여러 유형으로 나누어진다. 이 유형 중 온라인 게임커뮤니티는 온라인 게임 내에서 제공되는 커뮤니티와 해당 온라인 게임 관련 커뮤니티로 나누어 질 수 있다. 온라인 게임 관련 커뮤니티는 게시판과 이메일을 이용하여 게임 진행, 게임 관련 자료 등의 다양한 정보를 교환하며, 온라인 게임 내에서 제공되는 커뮤니티는 팀 구성, 아이템 거 래, 채팅등의 형태로 구성되고 있다. 이러한 온라인 게임 커뮤니티의 중요성은 날로 부각되고 있으나 온라인 게임 관련 커뮤니티와 게임 내에서 제공되는 커뮤니티는 그 중요성에 비해 차별화되어 있지 않다. 따라서 본 논문에서는 신세대의 취향에 적합하고 한국적인 커뮤니티로 차별화된 커뮤니티를 구축한 싸이월드의 사례를 분석하고 이를 온라인 게임에 적용하는 방안을 연구하였다. 본 논문은 온라인 게임 관련 커뮤니티와 온라인 게임 내에서 차별화된 커뮤니티 요소를 구축하고자하는 업체에게 도움을 줄 수 있다.

• 한국유기농업학회지
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• 제13권3호
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• pp.243-259
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• 2005

In the development of policies and projects for regional development, consolidating region's organization and organizational leadership that could establish and operate voluntary developmental plans along with active participations by regional people are important. There have been successful cases of regional agricultural products emphasizing regional characteristics by strengthening functions and autonomy of the local government based on the premise of increasing mealable relationship among local industries and maximizing the characteristics of local resources and local resource utilization. However, effective pursuing is difficult due to lack of organization and leadership. Centering around local units with their importance recognized playing the core role in the development of rural areas, other important issues are activating civic organizations essential for local development based on town units and agricultural amenity resources in rural areas by seeking methods of rearing organizational leadership, improving rural incomes by strengthening local competitiveness through environmentally-friendly agricultural products based on local units, and developing and activating farm experience related with green tour. The types of organization and leaders are analyzed by investigating approved cases of farm experience. According to the results of the analysis, we seek the methods of promoting organizations and leaders for promoting farm experiences in villages and methods of constructing support organizations for promoting farm experience centering around local government units (such as city, Kun, Eup, Myun and village).

• 대한정형외과스포츠의학회지
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• 제11권2호
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• pp.96-98
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• 2012

경추 또는 흉추의 극돌기에 단독으로 발생하는 골절을 Clay shoveler 골절이라 한다. 이 골절이 스포츠 활동 중에 발생하는 경우는 매우 드물다. 본 증례에서는 27세 남성으로 반복적인 골프 스윙으로 인하여 제 7경추 극돌기에 골절이 발생하였다. 환자는 진통제, 근육이완제 복용과 4주간의 토마스 칼라를 착용하였다. 통증은 호전되었고, 수상 후 5개월 째에 다시 골프를 시작하였다.

• 펄프종이기술
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• 제47권4호
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• pp.168-176
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• 2015

The history of paper folding had continued before that the paper manufacturing technique was spread in the 3rd century and it was used for witchcrafts and rituals. Fold means as was used with the word Cheop and Jeopji. In the Three Kingdoms period, the conical hat with fabric spread as customs, then it was made of the paper that led the popularization of paper folding form the early Joseon Dynasty. Paper crafts and living things with paper are mostly derived from fabrics except the paper written for saint's name related God. In the period of the tribe nation, witchcrafts and rituals brought to Japan via the Korean Peninsula, as a result Kami which means God in Japanese that becomes the paper. The first folding fan was made to develop from the fan, Baekseopsun in the end of Goryeo Dynasty. It was an outstanding application of paper folding crafts. Since the early Joseon Dynasty, paper flower folding has considered as the virtue of savings and has developed one of the Korean traditional paper arts. Paper folding has also developed in the practical uses like the other Korean paper arts but paper folding that was developed as seasonal customs, playing or religious purpose showed a different trend from Korean paper arts.

• Asian-Australasian Journal of Animal Sciences
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• 제27권4호
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• pp.464-470
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• 2014

One of the most important traits for both animal science and livestock production is the number of offspring for a species. This study was performed to identify differentially evolved genes and their distinct functions that influence the number of offspring at birth by comparative analysis of eight monotocous mammals and seven polytocous mammals in a number of scopes: specific amino acid substitution with site-wise adaptive evolution, gene expansion and specific orthologous group. The mutually exclusive amino acid substitution among the 16 mammalian species identified five candidate genes. These genes were both directly and indirectly related to ovulation. Furthermore, in monotocous mammals, the EPH gene family was found to have undergone expansion. Previously, the EPHA4 gene was found to positively affect litter size in pigs and supports the possibility of the EPH gene playing a role in determining the number of offspring per birth. The identified genes in this study offer a basis from which the differences between monotocous and polytocous species can be studied. Furthermore, these genes may harbor some clues to the underlying mechanism, which determines litter size and may prove useful for livestock breeding strategies.

• 아동학회지
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• 제38권1호
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• pp.251-262
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• 2017

Objective: This study analyzed mother-child interactions in a stressful situation each second by mother's emotional regulation level. Methods: The study was conducted with 16 mothers and their 5-year-old children playing a teaching task for 15 min. During the interactions, the participants were videotaped and examined. Furthermore, qualitative analysis was used for analyzing mother-child interactions in detail by creating a situation that maximizes the stress and frustration of the mother and child. Results: The results showed that maternal humor and affection were significantly related to child positive emotion and that maternal coaching closely correlated with the child pride, pleasure, and whining. Additionally, maternal intrusive behavior showed a positive correlation with child anger. Lastly, mothers with higher levels of emotional regulation more often expressed affection to their children. They were more actively involved in the tasks and used fewer positive or negative directive expressions. Therefore, children of this group expressed more positive emotions. Conclusion: These findings suggests that programs improving parental emotional reaction and emotion regulation should be developed.

• 디지털융복합연구
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• 제10권8호
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• pp.341-346
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• 2012

본 연구에서는 이러닝 환경에서의 학습참여도에 플로우 경험과 인터넷 중독이 미치는 영향을 고찰하였다. 학습참여도는 이러닝 웹 로그 분석을 통해 학습컨텐츠 접속횟수, 접속시간 및 지연시간(컨텐츠 업로드 시간과 접속시간의 시차)을 산정하여 활용하였으며, 이러한 학습참여 변인과 학업성취도간의 관계 또한 분석되었다. 연구결과, 플로우 경험은 모든 이러닝 참여 관련변인과 유의한 관계가 있는 것으로 나타났으며, 인터넷 중독은 지연시간과 유의한 관계가 있는 것으로 파악되었다. 그리고 여학생은 남학생에 비해 더 자주, 더 오래 학습컨텐츠에 접속한 것으로 나타났다. 이러닝 참여 변인 중에서는 접속횟수와 지연시간이 학업성취도에 유의한 영향을 미치는 것으로 파악되었다.

• Advances in concrete construction
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• 제9권3호
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• pp.327-335
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• 2020

Concrete pipes are considered important structures playing integral role in spread of cities besides transportation of gas as well as oil for far distances. Further, concrete structures under seismic load, show behaviors which require to be investigated and improved. Therefore, present research concerns dynamic stress and strain alongside deflection assessment of a concrete pipe carrying water-based nanofluid subjected to seismic loads. This pipe placed in soil is modeled through spring as well as damper. Navier-Stokes equation is utilized in order to gain force created via fluid and, moreover, mixture rule is applied to regard the influences related to nanoparticles. So as to model the structure mathematically, higher order refined shear deformation theory is exercised and with respect to energy method, the motion equations are obtained eventually. The obtained motion equations will be solved with Galerkin and Newmark procedures and consequently, the concrete pipe's dynamic stress, strain as well as deflection can be evaluated. Further, various parameters containing volume percent of nanoparticles, internal fluid, soil foundation, damping and length to diameter proportion of the pipe and their influences upon dynamic stress and strain besides displacement will be analyzed. According to conclusions, increase in volume percent of nanoparticles leads to decrease in dynamic stress, strain as well as displacement of structure.

• 한국항해항만학회지
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• 제40권5호
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• pp.305-310
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• 2016

The sea-port in Northern Vietnam accounts for around one third of the total country's cargo throughput and for many decades has been playing an important role in the logistics system of the country. 11 container terminals currently operate in Northern Vietnam, concentrating in Haiphong city and Quang Ninh province. Despite the increasing demand, the competition among these container terminals has become increasingly more critical. In recent years, massive investments from both government and operators have been made to improve the capability of the local sea-port's logistics infrastructure. This critically needed comprehensive research evaluates the impact of the current logistics infrastructure condition on the competitiveness of terminals and quantitatively compares the competencies of these terminals. In order to meet such requirements, the paper first summarizes the indicators of the logistics infrastructures of the sea ports before developing and testing hypotheses to reveal the correlation between the given factors and the annual throughput of container terminals in the region. Factor analysis will then be applied to score the logistics infrastructure competency of each container terminal. A significant gap between logistics infrastructures among all container terminals was not observed and the competitiveness between container terminals is mostly driven by traditional activities including cargo handling and storage. According to the results, strategic thinking will be needed to contribute to related organizations for better decisions in investment, management, and operation.