• Journal of the korean veterinary medical association
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• v.47 no.1
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• pp.47-54
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• 2011

최근 몇년간 국립수의과학검역원에서 조사한 바에 따르면, 국내 젖소에서 유방염을 일으키는 주된 원인균은 황색포도상구균을 제외하고는 거의 대부분 젖소의 환경으로부터 유래하는 환경성 세균에 의한 것으로 확인된 바 있다. 국내 젖소의 유방염 원인균으로 작용하고 있는 이러한 환경성 세균 중 coagulase-음성 포도상구균 (Coagulase-negative Staphylococci, CNS)과 E. coli 등의 그람 음성균이 가장 많은 비율을 차지하였지만 그 외에 Streptococcus uberis를 비롯한 환경성 연쇄상 구균과 장구균도 상당한 비율을 차지하는 것으로 조사되었으며 이에 대해서는 지난 9월호에서도 상세히 기술한 바 있다. 환경성 연쇄상구균과 장구균은 젖소에서 유선감염 및 임상형 유방염의 중요한 원인이며 환경성 연쇄상구균 중 가장 흔히 발견되는 유방염 원인체는 Streptococcus uberis 로서, 이는 국내에서뿐만 아니라 미국, 유럽, 뉴질랜드, 호주 등에서 수행된 많은 연구결과에서도 마찬가지로 나타났다. 장구균 중 가장 흔히 분리되는 균종은 E. faecium과 E. faecalis로서 검역원에서 지난 몇 년간 조사된 결과에서도 이 두 가지 균 종이 유방염우유에서 분리된 장구균의 90% 이상을 차지하였다. 이러한 환경성 연쇄상구균과 장구균은 사람과 동물의 장관, 분변, 감염된 유방 및 전체적인 목장 환경에서 분리되고 있다. 장구균은 일반적으로 환경성 연쇄상구균/장구균 유방염 감염증 중의 일부일뿐이고 장구균에 의한 유방염이 목장의 주된 문제가 되는 일은 비교적 드물다. 현재, 장구균에 의해 발생하는 유방염은 S. uberis를 통제하기 위해 사용되는 방법과 동일한 방법으로 통제할 수 있다고 여겨진다. 원인체에 상관없이 유방염을 통제하기 위한 기본적인 원칙은 유방염을 일으킬 수 있는 병원체에 유두끝이 노출되는 기회를 줄이거나 감염에 대한 젖소의 저항성을 증가시키는 두 가지 방법이다. 역으로 얘기하면, 병원체에 대한 유두끝 노출을 증가시키거나 감염에 대한 젖소의 저항성을 감소시키는 요인들은 우군 내에서 더 많은 유방염을 발생시킬 가능성이 높기 때문에 위험요인으로 간주된다. 본 고에서는 환경성 연쇄상구균에 의한 유방염과 관련이 있는 것으로 알려진 이러한 여러 가지 위험요인들에 대해 알아보고 그러한 위험요인을 줄일 수 있는 방법에 대해서도 고찰하고자 한다.

• Korean journal of communication and information
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• v.55
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• pp.164-183
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• 2011

Technology innovation of digital convergence in recent years of the media sector has produced a series of significant changes in journalist labor. This study analyzes how recent introduction of convergent newsroom changed the nature of journalist labor and what strategy the management used to control journalists within the technologically innovated working condition with case of CBS. As the labor process theory tells us, the analysis found that technological innovation in the newsroom has encouraged a couple of aspects regarding labor process. First, losing control over their own labor journalists have undergone the process of significant deskilling. Second, the management have made a constant effort to introduce ideological and political apparatuses with twofold purposes, effective control over workers on one hand and concealing oppressive labor conditions on the other. The effort generated journalists' acceptance of new news-making routine and their consent on labor-management culture founded upon naive familism, which at last resulted in reinforcement of corporate power and isolation of labor society by separating internal labor market.

• Journal of the Korea Society of Computer and Information
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• v.13 no.2
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• pp.211-220
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• 2008

The home network technology which used USN is developing quickly. Use yet line to a lot of part as home network technology. Recently be leap into prominence to technology core of home network as wireless technology a ZigBee. ZigBee Perceive with cognition from tag and sensor as use USN, and processing, save, integration, and provide information. Implement the access control system which used technology BigBee with design at these papers. The wireless-based construction that used ZigBee. The influence that can let you implement early a Ubiquitous society is technology there being. Also, show by a large spinoff in an allied industry field, and improve the quality of life, and invention calls value added of leading edge IT service and product. The implementation of mobile base on access control system using zigbee method is expected to be helpful for the convenience in home network use.

• Journal of Navigation and Port Research
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• v.32 no.10
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• pp.785-791
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• 2008

Because of increasement on the transportation of goods by ship and the operation of coastal ships for leisure, the interest of marine parts is growing up lately and then the safe navigation of ships are essential. In these circumstances, it is necessary that it should be examined the regulation of vessel traffic control in effect. Therefore, the wave height is analyzed on korean coast, and then the seakeeping performance with the wave height and the various hull types on operating on the coast is evaluated. These results will be helpful to the improvement of the regulation of vessel traffic control and safe navigation of coastal passenger ships.

• Journal of Korea Technology Innovation Society
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• v.21 no.3
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• pp.1050-1076
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• 2018

In this study, we focus on identifying the determinants of improving technology collaboration performance between buyer and supplier and the impact of the determinants on new product development performance. We adopted trust, control and information sharing as the determinants of technology collaboration and the frequency of new product introduction and ratio of new product on revenue as dependent variables. We conducted hierarchical regression and mediation analysis using the data collected from 600 Korean manufacturing firms by Korean Productivity Association and Ministry of Trade and Industry in 2012. The empirical findings indicate that trust, control and information sharing are positively associated with technology collaboration performance and the degree of technology collaboration is also positively associated with both new product development performance. In addition, new product development performance is not only affected by technology collaboration but also mediated by trust. This result implies that developing social capital, trust with partner play a important role in leading to better performance by open innovation.

• 한국노년학
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• v.30 no.1
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• pp.109-126
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• 2010

The purpose of this study was to examine the effectiveness of group forgiveness program for female elders who had deep and unfair personal hurt experiences from their social relationships. Subjects were divided into 2 groups. The sample was comprised of 20 elders, capable of verbal communication. Experimental and control groups composed of elders, each 2 elders dropped out of each group due to personal reasons. Experimental group completed a total of eight consecutive group forgiveness program sessions that combined listening and supportive techniques. Additionally, qualitative investigations were also done through interviews and observations. Following the intervention, experimental group experienced a significant improvement in degree of forgiveness(t=3.05, p<.01), anger(t=3.78, p<.01), anxiety(F=5.93, p<.05), depression(F=16.73, p<.01). Qualitative analysis also resulted that the elderly relationships were changing positively. This study implies that group forgiveness program was effective in improving elder's degree of forgiveness and reducing anger, anxiety and depression so that the participants were to value their whole life more.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.3
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• pp.149-156
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• 2019

This study investigated the effects of academic self-efficacy and resilience on perception of professionalism. The survey questionnaire was completed by 313 pre-service early childhood teachers. SPSS Win program was used to perform MANOVA and Multiple Regression Analysis. (1)The self-regulatory efficacy was significantly different according to grade and experience of child care practice. (2)The control and sociality, positivity were significantly different according to grade and experience of child care practice. (3)The perception of professionalism was significantly different according to grade and experience of child care practice. (4)The self-regulatory efficacy and the difficulty preference affected perception of professionalism. (5)The positivity and control affected perception of professionalism. This study indicated that it is necessary to make efforts for increasing perception of professionalism in pre-service early childhood teachers.

• Journal of Convergence for Information Technology
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• v.9 no.10
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• pp.133-143
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• 2019

The purpose of this paper was to analyze the differences in executive function according to type of early English learning experience. The subjects were 75 5-years-old who had immersive early English learning in language school, and daycare center. The measurement tools were stroop, DCCST, memorize numbers, pattern fluency, and maze. We conducted covariance analysis with total intelligence as the covariates. In the results, there were significant differences in attention control and cognitive flexibility, but weren't significant differences in information processing and goal setting according to type of early English learning experience. This study suggests that experience of immersive early English learning positively affected attention control and cognitive flexibility, and didn't affect information processing and goal setting.

• Journal of Digital Convergence
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• v.19 no.2
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• pp.143-150
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• 2021

Prior research on consumer psychology has primarily focused on when and why consumers exhibit impulsive behavior, such as impulse buying. This study focuses on physical stimulation during an impulse purchase as another meaningful factor. Specifically, this study examines whether thirst depletes cognitive resources. The results of two experiments show that impulse purchase tendency increases when consumers are thirsty (Exp. 1), and that the loss of self-control is based on the relationship between thirst and impulse purchase tendency (Exp. 2). These findings suggest that physical stimulation, such as thirst, may be a useful indicator of impulsive behavior in consumers.

• Journal of Advanced Navigation Technology
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• v.28 no.2
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• pp.201-209
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• 2024

This study investigates the operational facets of low-density urban air mobility (UAM) from an airline's perspective amid burgeoning concerns about urban congestion in megacities. UAM, employing electric vertical takeoff and landing (eVTOL) technology, emerges as a potential remedy to the challenges of traffic gridlock and environmental degradation. As the UAM market progresses from initial stages to maturity, tailored traffic control systems become paramount. Focused on the context of low-density environments during UAM's inception, this research scrutinizes operational frameworks, essential infrastructure, and likely scenarios. It aims to bolster the safety and efficiency of UAM operations by delving into the specifics of traffic control concepts designed for these unique settings. The study seeks to significantly contribute to optimizing UAM's initial phases, providing insights into crucial operational dynamics for a smoother integration of urban air mobility into contemporary urban landscapes.