• 한국언어정보학회:학술대회논문집
• /
• 한국언어정보학회 1998년도 Language, Information and Computation = Selected Papers from the 12th Pacific Asia Conference on Language, Information and Computation, Singapore
• /
• pp.69-81
• /
• 1998

• 대한원격탐사학회지
• /
• 제33권2호
• /
• pp.249-255
• /
• 2017

남극은 기후변화를 이해하는데 있어 중요한 지역 중 하나이며, 선행연구에 따르면 온난화뿐만 아니라 냉각화도 일어나는 복합적인 지역이다. 그렇기 때문에 남극 에너지 수지의 장기간 변화에 대한 파악이 필요하다. 에너지 수지 요소 중 하나인 순복사는 알베도의 영향을 받으며, 이때 알베도는 negative radiative forcing을 일으키는 요소로 작용한다. 남극의 기후 변화 및 얼음-알베도 피드백에서 두 요소 사이의 관계를 면밀하게 분석하기 위해서는 두 요소 사이의 상관관계를 분석할 필요가 있다. 본 연구에서는 위성 자료를 활용하여 남극에서의 순복사량을 계산하고, 장기간 변화를 분석하였다. 순복사는 연구기간 동안 내륙에서 음의 분포를 보였으며, 해양에서는 양의 분포를 보였다. 순복사의 연간 변화의 경우 해양에서 알베도와 반대되는 변화가 관측되었다. 시계열 패턴은 알베도와 순복사가 서로 대칭되어 나타났으며, 두 요소 사이의 상관관계는 남극 내륙에서 -0.73의 높은 음의 상관관계를 보였으며 해양에서는 -0.32의 음의 상관관계를 보였다.

• 산경연구논집
• /
• 제12권3호
• /
• pp.43-49
• /
• 2021

Purpose: This study attempted to examine the risk of stock price plunge according to the firm's management strategy. Prospector firms value innovation and have high uncertainties due to rapid growth. There is a possibility of lowering the quality of financial reporting in order to meet market expectations while withstanding the uncertainty of the results. In addition, managers of prospector firms enter into compensation contracts based on stock prices, thus creating an incentive to withhold negative information disclosure to the market. Prospector firms' information opacity and delays in disclosure of negative information are likely to cause a sharp decline in share prices in the future. Research design, data and methodology: This study performed logistic analysis of KOSPI listed firms from 2014 to 2017. The independent variable is the strategic index, and is calculated by considering the six characteristics (R&D investment, efficiency, growth potential, marketing, organizational stability, capital intensity) of the firm. The higher the total score, the more it is a firm that takes a prospector strategy, and the lower the total score, the more it is a firm that pursues a defender strategy. In the case of the dependent variable, a value of 1 was assigned when there was a week that experienced a sharp decline in stock prices, and 0 when it was not. Results: It was found that the more firms adopting the prospector strategy, the higher the risk of a sharp decline in the stock price. This is interpreted as the reason that firms pursuing a prospector strategy do not disclose negative information by being conscious of market investors while carrying out venture projects. In other words, compensation contracts based on uncertainty in the outcome of prospector firms and stock prices increase the opacity of information and are likely to cause a sharp decline in share prices. Conclusions: This study's analysis of the impact of management strategy on the stock price plunge suggests that investors need to consider the strategy that firms take in allocating resources. Firms need to be cautious in examining the impact of a particular strategy on the capital markets and implementing that strategy.

• 인터넷정보학회논문지
• /
• 제14권4호
• /
• pp.91-100
• /
• 2013

최근 많은 기업들이 도입하는 온라인 브랜드 커뮤니티는 기업 혁신에 도움이 될 고객의 의견을 수집하는 데 유용하게 활용되고 있다. 본 논문은 온라인 브랜드 커뮤니티에 게시되는 다양한 의견들 중 부정적 감정을 담고 있는 고객의견이 기업 혁신에 기여하는데 미치는 영향력을 분석하였다. 이를 위해 먼저 부정적 감정을 Fear, Anger, Shame, Sadness, Frustration의 총 다섯 가지 세분화된 감정으로 분류하고 WordNet과 SentiWordNet을 기반으로 부정적 감정에 대한 감정 어휘군을 구축하였다. 실험을 위해 본 연구에서는 스타벅스의 브랜드 커뮤니티인 MyStarbucksIdea.com에서 81,534건의 고객의견을 수집하였으며 부정적 감정 어휘군을 활용하여 각 고객의견 내 부정적 감정 정보를 추출하였다. 부정적 감정의 유무, 빈도, 강도의 세 가지 측면에 따른 기업 혁신에 대한 영향력을 분석한 결과, 부정적 감정이 담긴 고객의견이 기업 혁신에 유의미한 영향력을 미치는 것으로 나타났으며 부정적 감정 중, Frustration과 Sadness의 감정이 기업 혁신에 긍정적인 영향을 가지고 있음을 확인할 수 있었다.

• 융합정보논문지
• /
• 제10권12호
• /
• pp.256-265
• /
• 2020

본 연구는 실패상황에서 서비스종업원지원인식이 고객의 부정적 침묵인 방어적 침묵과 체념적 침묵에 미치는 영향, 그리고 이러한 부정적 침묵이 고객의 관계유지의도에 미치는 영향에 대해 살펴보자 한다. 조사대상은 일반소비자로 하였으며 최종분석에 사용된 설문지는 총 220부이다. 탐색적 요인분석, 확인적 요인분석을 이용하였고 구조방정식 모형을 통해 가설을 검증하였다. 연구결과, 실패상황에서 서비스종업원의지원은 고객의 방어적 침묵과 체념적 침묵을 감소시키는 것으로 나타났다. 그리고 체념적 침묵은 관계유지의도를 감소시키는 것으로 나타났지만 방어적 침묵은 관계 유지의도에 유의한 영향을 미치지 않는 것으로 나타났다. 또한 체념적 침묵은 방어적 침묵보다 관계유지의도에 미치는 부정적 영향이 더 높은 것으로 나타나 체념적 침묵이 방어적 침묵보다 더 좋지 못한 침묵인 것으로 나타났다. 본 연구는 고객의 말이 아닌 고객의 침묵을 통해 침묵속에 다양한 동기가 있음을 살펴볼 수 있었다. 또한 고객침묵으로 인해 나타나는 부정적 결과, 그리고 이러한 침묵을 감소시킬 수 있는 요소들에 대해 살펴봄으로써 고객의 침묵에 관심을 가질 수 있는 계기를 제공하고 있다.

• 정보교육학회논문지
• /
• 제6권2호
• /
• pp.225-233
• /
• 2002

정보통신 기술의 발달과 컴퓨터 보급의 확대 등으로 가정과 학교에서 학생들이 인터넷을 접할 기회가 많아졌다. 인터넷의 이용은 교육적 활용에 따라 많은 가치를 지니고 있는 반면 불건전 정보의 유통, 게임 통신 중독, 정보의 오 남용 등의 정보화의 역기능 또한 가지고 있다. 최근 사이버 공간에서의 역기능에서 학생을 보호할 수 있는 정보통신윤리교육에 대한 연구들이 진행되고 있다. 본 논문에서는 학생의 올바른 정보통신윤리교육을 위해 학생, 교사, 학부모를 대상으로 설문 조사를 실시하고, 관련연구와 설문결과를 바탕으로 학생을 대상으로 한 정보통신윤리교육의 체계적인 교육 내용과 방법을 제시하였다.

• 보건교육건강증진학회지
• /
• 제33권3호
• /
• pp.83-93
• /
• 2016

Objectives: This study aimed (1) to share findings from the U.S. on customer use of social media for information seeking and sharing about food recall risks, and (2) to discuss the implications of the findings for the context of food safety and risk communication in Korea. Methods: A cross-sectional survey was conducted with 1,026 social media users aged 18 years or older in the U.S., recruited from the Knowledge Network's nationally representative panel. Results: About 26 percent of respondents used social media either to seek or share food recall information in the past year, with social networking sites being the most popular tool. With respect to social media use for information seeking, being married, perceived risk of getting foodborne diseases, and trust in Internet were significant, positive predictors; being Whites and trust in health professionals were negative predictors. Social media use for information sharing was positively associated with education, being married, foodborne disease history, and perceived risk of foodborne diseases; Whites, income, and trust in health professionals were negative predictors. Conclusions: The study gives theoretical, methodological, and practical implications for the context of food safety and risks in Korea.

• 한국유기농업학회지
• /
• 제31권4호
• /
• pp.309-325
• /
• 2023

GMO labeling system in South Korea stipulates three labeling methods: GMO labeling, no labeling and Non-GMO labeling. Products labeled as Non-GMO are not allowed for unintentional commingling of GMO without tolerance. However, consumers vary their acceptance of Non-GMO label on the unintentionally commingled products and willingness to pay according to the mixing rate, rather than devalue the whole products as useless. Additionally, consumers do not believe that the acceptable mixing rate should be discriminated between non-labeled products, which allow up to 3% of unintentional GMO contamination, and Non-GMO labeled products. Information on unintentional GMO mixing mainly refers to the mixing rate, but the Non-GMO content remaining even after commingling is also important information. The decline in value is alleviated when consumers are exposed to positive information, such as Non-GMO content, rather than when exposed to negative information, such as the mixing rate. Loss Aversion Coefficient is relative depending on whether the information representing the loss is positive or negative. Information that a Non-GMO labeled product contains X% GMO is more sensitive than information that (100-X)% Non-GMO remains.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권2호
• /
• pp.531-535
• /
• 2015

Vasculogenic mimicry (VM) refers to the unique ability of highly aggressive tumor cells to mimic the pattern of embryonic vasculogenesis, which was associated with invasion and metastasis. The grape seed proanthocyanidins (GSPs) had attracted much attention as a potential bioactive anti-carcinogenic agent. However, GSPs regulation of VM and its possible mechanisms in a triple-negative breast cancer cells (TNBCs) remain not clear. Therefore, we examined the effect of GSPs on VM information in HCC1937 cell model. In this study, we identified the VM structure via the three-dimensional (3D) matrix in vitro. Cell viability was measured using the CCK8 assay. The effects of GSPs on human triple-negative breast cancer cells (TNBCs) HCC1937 in terms of related proteins of VM information were determined using western blot analysis. In vitro, the tubular networks were found in highly invasive HCC1937 cells but not in the non-invasive MCF-7 cells when plated on matrigel. The number of vascular channels was significantly reduced when cells were exposed in GSPs ($100{\mu}g$/ml) and GSPs ($200{\mu}g/mL$) groups (all p<0.001). Furthermore, we found that treatment with GSPs promoted transition of the mesenchymal state to the epithelial state in HCC1937 cells as well as reducing the expression of Twist1 protein, a master EMT regulator.GSPs has the ability to inhibit VM information by the suppression of Twist1 protein that could be related to the reversal of epithelial-to-mesenchymal (EMT) process. It is firstly concluded that GSPs may be an p otential anti-VM botanical agent for human TNBCs.

• 한국정보시스템학회지:정보시스템연구
• /
• 제26권4호
• /
• pp.39-62
• /
• 2017

Purpose The purpose of this study is to investigate the factors which affect users' fatigue and reluctant intention of using a SNS. In particular, this study focused on the fatigue of SNS users, as the recent excessive use of SNS has led to negative effects such as invasion of privacy, addition and social overload. fatigue This research will explain how producing adverse effects by using SNS caused psychological and mental depression. Previous researches explained that mental fatigue associated with SNS is not simple one and it is complicated with various psychological factors. Considering this fact, this study introduced a behavioral economics concept and a social comparison theory in the research model. Design/methodology/approach For research purposes, this study developed research hypotheses in order to empirically examine the factors that affect SNS users' fatigue and reluctant intention. The empirical research was based on a poll done through 800 research candidates in the SNS fields and the final 451 responses were collected and used in statistical data analysis. The adaptability, trust, and validity to measurement model were verified and the structural relationship in the research model was analyzed through these 451 responses. Findings First of all, maintenance fatigue of SNS had a positive significant effect on coupling and fatigue of SNS and information privacy had a non-significant effect on fatigue. Second, coupling had a negative significant effect on rational inattention, however, perceived cost had a non-significant effect on rational inattention. Third, lateral/upward comparison had a positive significant on user's negative emotions. Meanwhile, user's negative emotions did not have a significant effect on rational inattention.