We have investigated the influence of system composition and preparation conditions on the particle size of vitamin E acetate (VE)-loaded nanoemulsions prepared by PIC(phase inversion composition) emulsification. This method relies on the formation of very fine oil droplets when water is added to oil/surfactant mixture. The oil-to-emulsion ratio content was kept constant (5 wt.%) while the surfactant-to-oil ratio (%SOR) was varied from 50 to 200 %. Oil phase composition (vitamin E to medium chain ester ratio, %VOR) had an effect on particle size, with the smallest droplets being formed below 60 % of VOR. Food-grade non-ionic surfactants (Tween 80 and Span 80) were used as an emulsifier. The effect of f on the droplet size distribution has been studied. In our system, the droplet volume fraction, given by the oil volume fraction plus the surfactant volume fraction, was varied from 0.1 to 0.3. The droplet diameter remains less than 350 nm when O/S is fixed at 1:1. The droplet size increases gradually as the increasing the volume fraction. Particle size could also be reduced by increasing the temperature when water was added to oil/ surfactant mixture. By optimizing system composition and homogenization conditions we were able to form VE-loaded nanoemulsions with small mean droplet diameters (d < 50 nm). The PIC emulsification method therefore has great potential for forming nanoemulsion-based delivery systems for food, personal care, and pharmaceutical applications.

최근 정보통신기술이 급속하게 발전함에 따라 산업사회에서 디지털사회로 전환되었으며 최근 스마트사회로 변화 되어가고 있다. 이러한 변화에 발맞추어 모바일기기의 다양한 콘텐츠에 대한 저작권보호 침해를 사전에 예방 하는 것을 고려하는 것이 매우 중요하다. 인터넷과 함께 다양한 업이 내장된 모바일기기를 활용함으로써 학습관 련활동의 목적으로 편리하게 다양한 정보에 접속할 수 있게 되었다. 본 연구의 목적은 통합기술수용이론인 UTAUT(The Unified Theory of Acceptance and Use of Technology) 모형을 개념적 틀(Conceptual Frame)로 이용하여 모바일학습의 이용행동에 영향을 미치는 요인을 검증하고자 한다. 아울러 모바일학습 이용자의 개인적인 특성인 혁신성향의 정도에 따라 위의 핵심 영향요인들이 모바일학습의 이용의도에 미치는 영향에서 유의한 차이가 있는지를 규명하고자 한다. 본 언구의 결과를 요약하면 인지된 이동성의 가치，성과에 대한 기대，사회적 영향 및 촉진조건요인들은 모바일 학습 이용의도에 유의한 영향을 미치는 요인으로 밝혀졌다. 사용의 용이성 및 자기주도 학습관리 요인은 이용의도에 영향을 미치지 않는 것으로 밝혀졌다. 개인적 혁신성의 조절효과의 분석결과 성과에 대한 기대요인만이 모바일학습의 이용의도와의 관계에 유의한 차이가 있는 것으로 나타났다.

인터넷 기술의 발전으로 2004년에 웹2.0이라는 용어가 등장하면서부터 인터넷을 활용하는 여러 분야에서 관심의 대상이 되고 있으며 학습자의 의견을 수렴하고 이를 반영하여 강의를 개선하고 발전시킬 수 있는 환경이 요구되고 있다. 이러한 요구를 반영하여 웹 2.0 환경의 Open-API, RSS, Mash-Up 등 웹 2.0의 참여·공유·개방을 촉진시키는 융합기술은 교육 분야에도 변화를 주고 있는데, 교육 분야에서의 융합은 ’이러닝 2.0’으로의 진회를 뭇하며 이러한 웹 2.0의 사조가 반영된 기술 환경에서의 새로운 교육을 ’이러닝 2.0’이라고 지칭한다. 웹 2.0을 반영한 교쥬L학습의 특성은 사용자 참여 중심이며, 개방성을 근간으로 사회적 상호작용과 개인의 참여가 핵심인 것으로 요약할 수 있다. 우리나라의 경우 웹2.0 사조를 반영한 ’이러닝 2.0’ 교육서비스는 아직 운영되지 않고 있는데，이는 시스랩을 최신화하는 수준이 아니라 교육하는 방법과 기술에 대한 다OJ=한 의미를 가지기 때문이다. 따라서 본 연구에서는 웹2.0 서비스가 줄 수 있는 장점을 어떻게 결합시킬 것인지 고민하는 것에서 출발하여 발전된 웹 2.0 기술을 기반으로 학습자의 참여를 증진시키고 활성화시키며 교육 내용의 수준을 한층 꿀어올리기 위해 웹 2.0 사 조를 반영한 ’이러닝 2.0’ 교육서비스 구현에 필요한 영향 요인을 도출하여 소셜 웹 시대 온라인 교육 콘텐츠의 접근에 대하여 조명하고자 하였다.

PURPOSES : This study deals with first traffic violations occurred by novice drivers, which may be associated with traffic accidents. The objective of this study is to identify what kinds of drivers' characteristics influence on duration till the first traffic violation. METHODS : For the study, Survival Analysis and Cox proportional hazard model, that are usually used in the medical field, were employed. Survival Analysis was conducted to investigate whether there exist differences in survival duration by each covariate, whereas Cox proportional hazard model was used to identify significant factors that affect survival duration till novice drivers violate traffic regulations for the first time after getting a driver license. RESULTS : The results of Survival Analysis indicate that female, age (less than 21), low-frequency examinee of written exam, and non-crash involved drivers have longer duration till the first violation compared to male, greater than 21 years old, high-frequency examinee of written exam, and crash involved drivers, respectively. For the Cox proportional hazard model, license class 1 acquisitor was found to increase the survival duration till the first traffic violation was made, while male, age of 21-24, age of 25-34, age of 45-54, and crash involved drivers were more likely to reduce the survival duration. CONCLUSIONS : Absolutely, traffic violation is closely related to traffic accidents and all of the drivers should keep the traffic regulations to enhance highway safety. The results of this study might provide some insights to construct safe road environments by controlling the factors that reduce the traffic violation duration of novice drivers.

The aim of this study was to investigate the effects of environmental factors such as temperature, salinity, turbidity and pH on the growth of pathogenic Vibrios. In this study, we was obtained the samples from 2 different sites of the Incheon coastal area between January 2012 and December 2012. The water temperature in August and September was the high. the Incheon port changes the width of a small, wherease in the case of Hanjin harbor of changes of larger width. Salinity and turbidity showed significant differences, whereas temperature and hydrogen ion concentration was not significant. Pathogenic vibrios was determined using the real-time PCR method. Pathogenic vibrios in the Incheon port and Hanjin harbor were detected in 11 samples (91.67%) and 9 samples (75.0%) of Vibrio cholerae, 7 samples (58.3%) and 6 samples (50.0%) of V. vulnificus, 10 samples (83.3%) and 12 samples (100.0%) of V. parahaemolyticus, respectively. Pathogenic Vibrio bacteria were the highest at 26.8℃ of seawater in August. Quantitative results were the following: 102 cell/㎖ in Vibrio cholerae, 7.876 cell/㎖ in V. vulnificus, and 503.4 cell/㎖ in V. parahaemolyticus, respectively. The enumeration of pathogenic vibrios showed a positive correlation with temperature and pH, but was negatively correlated with salinity and turbidity.

목 적: 각막굴절교정수술을 받은 환자를 대상으로 비접촉식 안압계로 안압을 측정하고 측정안압에 영향을 주는 변수를 분석하고자 하였다. 방 법: LASIK 또는 LASEK 각막굴절교정수술을 받은 154명(261안)을 대상으로 하였다. 안압은 비접촉식 안압계(KT-800, KOWA, JAPAN)를 이용하여 측정하였고, 각막곡률, 각막지형도검사, 중심각막두께는 Orbscan(OrbscanⅡ, Bausch+Lomb, USA)을 이용하여 측정하였다. 수술 후 안압 변화량과 중심각막두께 변화량, 각막곡률 변화량 및 교정굴절력과의 상관성은 SPSS ver. 18.0(SPSS Inc, Chicago, Illinois)를 이용하여 분석하였으며 유의수준은 p

돌나물 유전자원의 기내 활성보존을 위하여, 10mm 크기의 기내배양 shoot를 agar, Gelrite, ABA 및 sucrose 농도를 달리한 MS 배지에 치상하여, 4oC와 25oC에서 계대배양 없이 보존하였다. 배지는 0.2mg · L−1 BA를 기본으로 첨가하였고, agar와 Gelrite 배지에는 5% sucrose, ABA 배지에는 5% sucrose와 1.2% agar, sucrose 배지 에는 1.2% agar를 각각 첨가하였다. 상온 활성보존(25oC) 에서 sucrose와 Gelrite 배지는 생장억제 효과가 거의 없었고, 0.2mg · L−1 BA + 10mg · L−1 ABA + 1.2% agar, 또는 0.2mg · L−1 BA + 1.6% agar를 첨가한 배지가 효과적이었으며, 계대배양 없이 10개월까지 활성보존이 가능 하였다. 저온 활성보존(4oC)에서 12개월후 생존율은 모든 배지에서 100%였으며, 10mg · L−1 ABA, 또는 6% sucrose 첨가배지에서 계대배양 없이 18개월 이상의 활성보존이 가능하였다. 특히 고농도 sucrose 배지는 저온 활성보존(4oC)에서 돌나물 유전자원의 장기간 활성유지에 가장 효과적이었다.

Users of smart-phone based social network game are rapidly increasing. However, there are few researches for smart-phone based social network game. In this paper, we analysed factors affecting the user satisfaction for smart-phone based social network games through empirical testing. As a result, convenience and social presence were found to have positive effects on the user satisfaction of social network game. This study provides practical suggestions for developers of social network game to invigorate the smart-phone based social network game market, such as improved additional investment for simple game interface, easy game rule, additional interactive services.

The purpose of the study was to identify Korean high school students’ beliefs about L2 learning and a structural model that best explains the belief factors associated with L2 achievement using structural equation modeling (SEM). It has furthermore explored the effect of gender on the structural model of belief factors affecting L2 achievement. A total of 447 students (253 boys, 194 girls) at two schools completed a questionnaire containing 26 Likert-scale items. The results produced five underlying constructs: selfefficacy of English learning, importance of grammar learning, role of teacher feedback, importance of accuracy, and nature of English learning. The final SEM model showed that both self-efficacy of English learning and importance of grammar learning were positive, direct, and significant predictors of L2 achievement. Role of teacher feedback and nature of English learning, however, were indirectly related to the L2 achievement through the mediating role of self-efficacy of English learning. The study also provided empirical evidence that gender moderated the causal relationships among belief factors affecting L2 attainment. Based on the findings, pedagogical implications to improve L2 instruction were suggested.

The development of embryos reconstructed by nuclear transfer is dependent upon numerous factors including the type of recipient cell, method of enucleation, the type of donor cell, method of reconstruction, activation, the cell cycle stage of both the donor nucleus and the recipient cytoplasm and the method of culture of the reconstructed embryos. Many of these points which have been reviewed extensively elsewhere (Sun and Moor, 1995; Colman, 1999; Oback and Wells, 2002; Renard et al., 2002; Galli et al., 2003b), here we will concentrate on main area, the production of suitable cytoplast and nuclear donor, nuclear-cytoplasmic coordination, oocyte activation, culture of reconstructed embryos, and the effects that this may have on development.

본 논문은 조선 관련 기업에 해적에게서 지켜줄 수 있논 시스템 수용에 대한 해적에게서 지켜줄 수 있는 시스템 수용의 주요 요인을 검토하는 것을 목표로 하고 있습니다. 가설은 180 명의 사람들을 조사하여 실험 하였습니다. 연구 결과는 다음과 같습니다. 해적에게서 지켜줄 수 있는 시스템 수용의 네 가지 요소는 수용에 큰 긍정적인 영향을 미쳤습니다. 그것은 조선 회사와 관련 기엽에서 효과적인 해적에게서 지켜줄 수 있는 시스템 수용에 신뢰할 수 있는 기준을 표시됩니다.

Since manufacturing and supplying corporations today come to view their practice of SCM as important, it becomes essential to analyze and control the structural relationship between the information sharing among corporations and the performances resulting from their practice of SCM. It is thus the purpose of this paper to examine the factors that may prompt corporations to implement SCM by means of analyses into the relationship between information sharing and practice of SCM which corporations should lay stress on as well as the relationship between financial and non-financial performances of corporations. The findings of the study can be summed up as follows: First, as for the relationship between information sharing among and practice of SCM by corporations, information sharing among corporations turned out to affect such factors of implementing their SCM as trust, commitment mutual dependence. Consequently, corporations are requested to endeavor to implement SCM itself faithfully if they really aim to achieve their performances by practice of SCM and, at the same time, to make efforts to obtain understanding and support for information sharing among themselves. Second, from the analysis of the relationship between SCM and financial as well as non-financial performances of corporations, it was found that trust, a factor of SCM practice, had influence upon non-financial performances of corporations, but not upon their financial performances, while commitment and mutual dependence affected both financial and non-financial achievements of corporations. Therefore, it was made clear from the analysis that the decision and systematic control of SCM activities which best suit to a corporation play an important role in improving its financial and non-financial performances, because they greatly depend on the implementing extent of SCM factors such as trust, commitment and mutual dependence among corporations.

목적 : 지역보건법에 근거한 보건소와 치매지원센터에서 지역사회중심재활(Community Based Rehabilitation; CBR) 업무를 담당하는 작업치료사들의 직무특성을 알아보고 직무지향에 영향을 미치는 요인을 파악하여, CBR에 서 작업치료사의 역할 정립과 작업치료 질 향상을 위한 기초자료를 제시하고자 함이다. 연구방법 : 국내 보건소 및 치매지원센터에 근무하는 작업치료사를 대상으로 자기 기입식 온라인 설문지를 배부하여 조사하였다. 수집된 설문자료는 기술통계, 상관관계 분석, 위계적 회귀분석 등을 실시하여 직무지향에 영향을 미 치는 요인을 분석하였다. 결과 : CBR에서 작업치료사 직무 내용은 환자평가, 예방교육, 일상생활활동훈련, 인지 및 지각능력 증진 순으로 많았 다. 현재 실시 중인 작업치료 직무 중 힘든 서비스 형태로는 행정적인 업무, 지역사회 교육하기 등이 있었고, 작업 치료 서비스 시행이 어려운 이유로 다른 전문 인력 부족, 프로그램 기획력 및 조직력 부족, 다른 전문가와의 의사소 통 등이 있었다. 고용안정성은 불안정한 편이었고, 자신의 직무에 대한 자율성은 어느 정도 보장되는 것으로 분석 되었다. 고용형태와 고용안정성, 근무처와 자율성, 환자수와 승진기회는 부적 상관성이 있었고, 한편 월 급여와 자 율성, 학력과 자율성은 정적 상관성이 있었다. 결론 : 본 연구결과를 바탕으로 첫째, CBR에서 근무하는 작업치료사 역할 정립의 필요성 둘째, 작업치료 업무 외에 행정적인 업무, 지역사회 교육하기, 프로그램 기획력 및 조직력, 다른 전문가와의 의사소통 등에 대한 교육 및 연구 의 필요성 셋째, 작업치료사의 고용안정성 및 자율성을 개선시키기 위한 법 제정이 필요하다.

목 적: 안경구매자의 구매결정요인과 브랜드 자산인식이 구매만족과 구전의도에 미치는 영향에 대한 상호 관계를 알아보고자 하였다. 방 법 : 2011년 10월부터 12월까지 광주지역, 대구지역, 대전지역의 안경원 구매고객을 대상으로 437부의 설문지가 자료분석에 사용되었다. SPSS 18.0 통계 프로그램을 이용하여 구매결정요인에 대한 상관관계분석 과 구매만족과 구전의도에 대해여 다중회귀분석을 실시하였다. 결 과 : 구매결정요인은 고객서비스 및 디자인요인, 상품특성요인, 구매경험요인, 컨텐츠 및 커뮤니티요인 순으로 나타났고, 안경구매 소비자의 브랜드자산 인식에 대한 구매만족 및 구전의도는 브랜드에 대한 지각된 품질, 브랜드 인지도, 브랜드 이미지 순으로 나타났다. 결 론 : 안경구매자의 구매만족과 구전의도를 향상시키기 위해서 고객서비스 및 디자인에 대해 경쟁력을 갖추어야 하며 브랜드에 대한 지각된 품질을 향상시키는 노력이 필요하겠다.

The goal of this study is to determine, based on survey results, the underlying factors that affect the intention of the farmers who have not adopted the Hazard Analysis and Critical Control Points (HACCP) system for the rearing phase of pig production to adopt this system in the future. The research model for this study was con structed based on strategic contingency theory, the theory of the diffusion of innovation, and the technology acceptance model (TAM). Using structural equation modeling with partial least squares (PLS), this study analyzes the effects of the intensity of competition, the environmental uncertainty, the innovativeness and self-efficacy of the individual farmers, and the impact of the credibility of the Agricultural Technology Service Center (ATSC), which acts as the principal agent of technology dissemination and as a leader of change, on the perceived usefulness of technology and the farmers’ intention to adopt the system. The results of the analysis are as follows. First, with regard to the underlying factors affecting the intention to adopt the new system, the intensity of competition within the industry and the institutional credibility of the ATSC were inferred to underlie the perceived usefulness. Second, institutional credibility has a positive impact on the perceived usefulness of the system, and the perceived usefulness, in turn, has a positive impact on the intention to adopt. The perceived ease of use also has a positive impact on the intention to adopt. Because the factor that has the biggest impact on the intention of a farm to adopt is the credibility of the ATSC, it is crucial for extension organizations, such as the ATSC, to make greater efforts to promote the expansion of the HACCP system. Because farmers feel that the implementation of the HACCP system is an instrumental strategy for coping with the high intensity of competition within the industry, they attempt to gain a competitive edge through the production of safe livestock products.

본 연구는 뉴스 콘텐츠의 디지털화 과정에서 발생하는 여러 가지 변화들이 기자 들의 이직의도에 어떠한 영향을 미치는 지를 알아보고자 하였다. 현재 미디어 환경 의 변화로 인해 뉴스소비자들의 뉴스소비 스타일과 방식이 급격히 바뀌면서 이에 대응하기 위한 국내외 신문업계의 방안 중 하나가 통합뉴스룸이라 할 수 있다. 통 합뉴스룸은 기존의 종이신문과 방송 그리고 웹을 통합하여 텍스트 · 비디오 · 오디 오 · 그래픽을 아우르는 뉴스 콘텐츠를 생산하여 다양한 매체를 통해 뉴스를 공급 할 수 있도록 하기 위한 것이다. 본 연구는 통합뉴스룸 이후 국내 언론사에 종사하는 기자들을 대상으로 언론조 직 문화에 대한 인식과 조직몰입, 직무만족 등을 살펴보고, 이러한 변인들이 기자 들의 이직의도에는 어떠한 영향을 미치는 지 조사하였다. 이를 위해 통합뉴스룸을 도입한 신문사에서 종사하는 기자들을 대상으로 설문조사를 실시하였다. 분석결과, 국내 언론사에서는 관계지향형, 혁신지향형, 위계지향형등의 언론조직문화 유형중 위계지향형이 기자들의 이직의도에 영향을 미치는 것으로 나타났다. 또한 기자들의 이직의도에 영향을 미치는 요인을 알아본 결과, 조직몰입 및 직무만족, 그리고 직 무탈진 등이 기자들의 이직의도에 영향을 미치는 것으로 조사됐다.

This study aimed to evaluate factors related to the ability of ambulatory patients with cerebral palsy (CP) to walk over vertical and horizontal obstacles. Twenty patients with spastic CP who were able to walk independently for at least 10 m with or without walking devices were recruited for the study. Participants were required to walk over small obstacles (1, 4, and 8 cm in height or width; total of 6 conditions). A 'fail' was recorded when either the lower limbs or the walking device contacted the obstacle. Linear regression analyses were used to determine the effects of age, sex, walking devices, eyeglasses, subtype (hemiplegia or diplegia), ankle foot orthoses, functional level, and score of body mass index on the ability of obstacle crossing. Fifteen participants (75%) failed to adequately clear the foot or walking device over obstacles in at least 1 condition. The chance of failure in crossing vertical obstacle was affected by the use of ankle foot orthoses, eyeglasses, gender, and CP subtype (p<.05). The failure rate crossing horizontal obstacle was affected by CP subtype. These findings suggest that rehabilitation procedures should (1) consider the clinical characteristics of patients in order to prepare them to be more independent while performing daily activities, and (2) incorporate environmental conditions that patients encounter at home and in the community.

The main objective of the present paper is to conduct a depth analysis of the structural relationship among cooperation of manufacturing corporations, their development of new products and performance in view of an empirical study. The findings of this study could be summed up as follows: First, from the analysis of relationship between cooperation of manufacturing corporations and development of new products, it was found out that there is a positive relationship among such factors of new product development as development process, organizational culture and substructure when cooperation among corporations becomes intensive. Second, the analysis of relationship between development of new products and financial outcomes showed that the factors of new product development like organizational culture and substructure do influence financial performance, while the development process don't. Third, in terms of relationship between factors of new product development and non-financial performance, it was analyzed that non-financial performance can be affected by such factors of new product development as development process, organizational culture and substructure.

Research in the area of equine artificial insemination (AI) has led to its increased application in field trials. However, procedures for equine semen collection, cooling and freezing of semen and artificial insemination need further improvement. In experiment 1, we investigated the percentage of total motility (TM) and progressive motility (PM) of sperms at after-collection, cooled-diluted, cooled-transported or frozen-thawed semen. In experiment 2, mares were inseminated with either cooled-diluted, cooled-transported or frozen-thawed semen. In experiment 3, we examined the effect of buffer (skim-milk extender), which was infused into the uterus at the time of AI with frozen-thawed semen. In experiment 4, we compared AI pregnancy rates for mares ovulating spontaneously versus after treatment with hCG. In experiment 1, the average percentage of TM was decreased from 75.3% to 14.4% at the stage of after-collection to frozen-thawed semen (p<0.05). The average percentage of PM was 58.2% and 59.6% at after-collection and cooled-diluted, but it was significantly increased 71.7% after frozen-thawed (p<0.05). In experiment 2, the pregnancy rates after AI using cooled-diluted, cooled-transported and frozen-thawed semen were 60%, 50% and 37.5%, respectively, and similar among treatments. In experiment 3, the pregnancy rate of mares infused with buffer at AI was 40% which was higher than that with no buffer (10%). In experiment 4, the pregnancy rates of mares were similar between ovulated spontaneously (25%) and ovulated with hCG (50%). The results suggest that equine semen that has been cooled-diluted, cooled-transported or frozen can be successfully used to establish AI, pregnancy and foal production. Also, the pregnancy rates after AI can be increased by infusing buffer into the uterus at AI or by inducing ovulation with hCG, but further study is need.