• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 2002년도 제21회 하계학술발표회 논문집
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• pp.203-223
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• 2002

In Korea, Public Research Institutes(PRIs) are today faced with the challenges of creating values by transferring technologies in store within themselves to private commercial sector. Recently, It has been increasingly pointed out that PRIs have the poor capability to valuate prospective technologies of their own, and don't run the reasonable technology transfer mechanism in terms of establishing royalty rate and initial payment, designing remuneration to inventor, screening qualified licensee, and controlling the moral hazard. This paper develops an enhanced mathematical model of technology transfer from a PRI to a private industrial firm with including the inventor as an important player. The model is made up of the main part which derives the optimal royalty rate by maximizing the social welfare and sharing risk fairly between players and some sub-parts. The one sub-part is a principal-agent model which makes it possible to control the moral hazard of inventors, and the other part provides the criteria for screening appropriate licensees. Moreover, the moral hazard between inventor and licensee is addressed by introducing the cost reduction function of efforts exerted by them. The model is able to relate the optimal royalty rate to the parameters that represent the environments under which the concerned parties operate. Especially, the ratio of initial payment over the value of transferred technology is calculated from the binding relation with the royalty rate. The paper shows that the model suggested here is more enhanced by comparing with the existing technology transfer mechanism. Finally, the paper allows us to find better strategies for effective technology transfer and further develop more sophisticated technology transfer model.

• Nutrition Research and Practice
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• 제15권6호
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• pp.773-788
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• 2021

BACKGROUND/OBJECTIVES: Due to the rapid increase of global cancer incidence and mortality and a high level of interest in cancer prevention, a systematic review of garlic intake and cancer risk is needed. SUBJECTS/METHODS: We implemented a systematic review to examine the effects of varying levels of garlic intake on cancer. We conducted comprehensive literature searches in three electronic databases (MEDLINE, Embase, and Web of Science) for studies published between database inception and July or September of 2018. Two investigators independently screened abstracts and full-texts, extracted data, and assessed risk of bias (RoB). A total of one medium-quality randomized controlled trial (RCT) and 13 cohort studies graded as high RoB were included. RESULTS: The 1-year follow-up results from a RCT showed that a significant decrease in the number and size of colorectal adenomas among participants with colorectal adenomas who received high-dose aged garlic extract (AGE) compared with those who received low-dose AGE (P < 0.05). The results of prospective observational studies provided inconsistent associations of colorectal cancer risk with garlic supplements and garlic intake as food. CONCLUSIONS: In summary, the AGE was effective in reducing the number and magnitude of colorectal adenomas in one RCT, but there were inconsistent associations between garlic intake and colorectal cancer in cohort studies. Therefore, we could not draw a firm conclusion regarding the effects of garlic on cancer, because the current strength of evidence is inadequate due to a lack of number of high-quality RCTs.

• 한국응용과학기술학회지
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• 제40권6호
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• pp.1475-1487
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• 2023

본 연구는 COVID-19 팬데믹 상황에서 보건소 간호사로 근무한 경험을 심층적으로 이해하고, 본질을 규명하고자 시도되었다. C도의 3개 군 보건소에서 COVID-19 팬데믹 기간 동안 1년 이상 근무한 경험이 있는 대상자를 연구참여자로 선정하여 Colaizzi가 제안한 현상학적 방법에 따라 분석하였다. 연구결과 'COVID-19에 대한 부정적 감정', '직업적 소명의식 고취', '신종 감염병 대응 체계 구축에 앞장'의 3가지 주제모음이 도출되었다. 이를 바탕으로 간호사들을 위한 심리적 문제 지원 강화, 편중된 업무의 개선, 전문 인력 지원, 체계적 교육 지원, 적정 수준의 보상체계 마련 등의 필요성을 확인하였다. 따라서 본 연구결과를 토대로 보건의료 체계 내 주요 인력인 간호사의 지지체계를 마련하고, 효율적인 감염병 대응 전략을 마련하기 위해 다각도의 관심을 가지고 활발한 논의가 이루어져야 할 것이다.

• Asia pacific journal of information systems
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• 제24권2호
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• pp.233-253
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• 2014

Can the stock market really be predicted? Stock market prediction has attracted much attention from many fields including business, economics, statistics, and mathematics. Early research on stock market prediction was based on random walk theory (RWT) and the efficient market hypothesis (EMH). According to the EMH, stock market are largely driven by new information rather than present and past prices. Since it is unpredictable, stock market will follow a random walk. Even though these theories, Schumaker [2010] asserted that people keep trying to predict the stock market by using artificial intelligence, statistical estimates, and mathematical models. Mathematical approaches include Percolation Methods, Log-Periodic Oscillations and Wavelet Transforms to model future prices. Examples of artificial intelligence approaches that deals with optimization and machine learning are Genetic Algorithms, Support Vector Machines (SVM) and Neural Networks. Statistical approaches typically predicts the future by using past stock market data. Recently, financial engineers have started to predict the stock prices movement pattern by using the SNS data. SNS is the place where peoples opinions and ideas are freely flow and affect others' beliefs on certain things. Through word-of-mouth in SNS, people share product usage experiences, subjective feelings, and commonly accompanying sentiment or mood with others. An increasing number of empirical analyses of sentiment and mood are based on textual collections of public user generated data on the web. The Opinion mining is one domain of the data mining fields extracting public opinions exposed in SNS by utilizing data mining. There have been many studies on the issues of opinion mining from Web sources such as product reviews, forum posts and blogs. In relation to this literatures, we are trying to understand the effects of SNS exposures of firms on stock prices in Korea. Similarly to Bollen et al. [2011], we empirically analyze the impact of SNS exposures on stock return rates. We use Social Metrics by Daum Soft, an SNS big data analysis company in Korea. Social Metrics provides trends and public opinions in Twitter and blogs by using natural language process and analysis tools. It collects the sentences circulated in the Twitter in real time, and breaks down these sentences into the word units and then extracts keywords. In this study, we classify firms' exposures in SNS into two groups: positive and negative. To test the correlation and causation relationship between SNS exposures and stock price returns, we first collect 252 firms' stock prices and KRX100 index in the Korea Stock Exchange (KRX) from May 25, 2012 to September 1, 2012. We also gather the public attitudes (positive, negative) about these firms from Social Metrics over the same period of time. We conduct regression analysis between stock prices and the number of SNS exposures. Having checked the correlation between the two variables, we perform Granger causality test to see the causation direction between the two variables. The research result is that the number of total SNS exposures is positively related with stock market returns. The number of positive mentions of has also positive relationship with stock market returns. Contrarily, the number of negative mentions has negative relationship with stock market returns, but this relationship is statistically not significant. This means that the impact of positive mentions is statistically bigger than the impact of negative mentions. We also investigate whether the impacts are moderated by industry type and firm's size. We find that the SNS exposures impacts are bigger for IT firms than for non-IT firms, and bigger for small sized firms than for large sized firms. The results of Granger causality test shows change of stock price return is caused by SNS exposures, while the causation of the other way round is not significant. Therefore the correlation relationship between SNS exposures and stock prices has uni-direction causality. The more a firm is exposed in SNS, the more is the stock price likely to increase, while stock price changes may not cause more SNS mentions.

• 한국산업보건학회지
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• 제6권1호
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• pp.144-155
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• 1996

During the 1990s the workplace has grown more complex and business competition has increased world-wide. All organizations, whether for-profit or non-profit have been forced to respond to market changes. More advanced information and technology, greater product diversity, shorter product life cycles, increased quality requirements, more regulation oversight, decreasing productivity, more competitors, and increasing overhead costs have motivated organizations to focus on ways to deliver products cheaper, better, and faster. Many organizations are searching for ways to reduce costs through downsizing, reengineering business processes, implementing quality management, outsourcing, and improving cost management. Support departments that provide services internal to an organization such as human resources, legal, and environmental, safety, and health (ES&H) are often the first organization targeted for cost reduction and cost control initiatives because these functions are part of a rapidly increasing overhead cost. Recently, ES&H functions are incresingly being integrated into the business of business to contribute value to organization beyond mere compliance with ES&H regulations. The discussions and development of the ISO compatible Environmental Management Standards or Occupational Safety and Health Management Standards is another impetus to integrate ES&H function into the business of business. Thus, ES&H professional need new skills to analyze the cost of their function and communicate the value of the products and services they provide. In recent years, the need for and the importance developing cost management and business skills by ES&H professionals have been emphasized in the literature. Communicating with decision makers in terms of cost and value to the organization, and by using business language and business arguments is the first step toward effectively integrating ES&H activities into the business of business. Activity-based costing (ABC) is a cost management method that measures the cost of a product or service based on the actual use of resources by activities, and based on the actual amount of activities used to produce a product or service. ABC is recommended as a tool for managers of ES&H organizations to determine the cost of developing and providing ES&H products within a for-profit firm or non-profit agency. This paper discusses the trend of integration of ES&H functions into the mainstream of business activities within an organization. The general principles of treditional cost accounting are presented as a bases for understandging why and how ABC will provide more accurate estimates of cost. The principles and concepts of ABS are presented as a tool for determining more accurately the true cost of ES&H products and services.

• 디지털융복합연구
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• 제15권8호
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• pp.257-265
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• 2017

본 연구에서는 '호스피스 완화의료'의 개념 및 '연명의료' 결정 내용에 대해 일반인들이 어느 정도 인식하고 있는지 알아보고자 하는 목적으로 시행되었다. 2016년 9월 일개 지역에서 열린 행사에 참여한 참가자 및 관계자 중 자발적으로 동의한 346명을 대상으로 설문조사를 진행하였다. 연구결과를 보면, 종교를 가진 사람들이 종교가 없는 사람들에 비해 자연스런 죽음을 원하고 있었으며, 존엄사와 관련된 결정에서 적극적인 태도를 취하는 것으로 보인다. 종교가 있는 집단에서 연명치료 중 인공호흡시행에 동의한 대상이 많이 나왔다. 종교는 삶과 죽음에 대한 인식에 영향을 미칠 수 있는 중요 요소로서 죽음 후 내세가 있다고 믿기 때문에, 무의미한 삶의 연장에 대해서 보다 단호한 입장을 취할 수 있는 것으로 생각된다. 따라서 호스피스 완화의료와 사전연명의료결정법이 일반인들에게 안정적으로 정착하여 존엄한 삶의 마무리와 죽음의 질을 높이기 위해서는 연령, 교육정도, 종교의 유무 등을 고려하여 다양한 교육 프로그램을 통한 인식 확산을 하여야 할 것이다. 또한 호스피스 완화의료 및 연명의료 관련 지식을 일반인이 충분히 이해할 수 있도록 교육 및 홍보를 강화해야 할 것이며 호스피스에 대한 정부차원의 표준화와 정책적 뒷받침이 시급할 것으로 보인다.

• 한국공간정보시스템학회:학술대회논문집
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• 한국공간정보시스템학회 2005년도 GIS/RS 공동 춘계학술대회
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• pp.351-354
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• 2005

NASA's remote sensing market analysis and forecast projects 3.3 billion dollars in 2005. On the other hand, a market research firm expected that world commercial remote sensing imagery, GIS software, Data, and value-added services will generate 8.3 billion dollar in 2007. It has been widely believed that geo-spatial information and service market is growing rapidly and has a huge potential, but it is not clearly understood where it is now and will be heading in the future. Also, it could be a significant question to answer where the industry in Korea fits the best in the world business trends and where it should be strategically heading to take a large market share. Furthermore, if it could be worth being considered as a Korean strategic industry for the future. Instead of pursuing direct answers to the questions, the author will start reviewing general business practices, major business transactions such as merging and acquisitions (M&A's) and initial public offerings (IPO's), and research on market capitalization and revenue of major companies. Throughout the study, a list of common grounds in the market was uncovered and realized as follows: (1) value-added data matters in geo-spatial information and service market; (2) private sector grows faster; (3) characteristics of multi-national industry; and (4) Dependency on major industry. Based on the findings, the author presents a list of recommendations as conclusions.

• 산학경영연구
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• 제12권
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• pp.1-27
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• 1999

마케팅 사고의 진전은 시장의 경쟁상황에 따라 진전되어 왔다고 할 수 있다. 경쟁이 보다 심화되면서 급기야 시장은 개인을 표적으로 하는 개별마케팅이 주를 이룰 것으로 보이는 데 이러한 상황에서는 소비자와의 관계를 자산화하는 관계마케팅을 중시하지 않으면 안된다. 이는 관계형성 자체가 자산이라는 인식하에서 이루어지고 있다. 관계로 인해 형성되는 자산가치를 극대화 하기 위해서 마케팅 커뮤니케이션은 통합적 마케팅 커뮤니케이션(IMC) 관점에서 실행되어야 하나 기존의 IMC는 기업차원의 PR을 소홀히 하고 있어 기업차원의 PR도 통합시켜 기업자산의 가치를 극대화할 필요가 있다.

• 상하수도학회지
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• 제22권1호
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• pp.23-29
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• 2008

Throughout the analysis of field data from water distribution system, valid parameters were determined that can be included in the water service and design plan. This study investigates water consumption patterns to understand the variation of water-demand structures utilizing the pattern analysis of domestic purpose water. Water use data were collected by a public water resources management firm in Korea, Kwater, for 140 houses monitored during three years. Flow meters were installed at the faucet for drinking water, the shower booth, the laundry machine, bathroom sink, toilet, and garden faucet. Data was filtered using multiple physically meaningful criteria to improve analysis credibility. Mann Kendall and Spearman's Rho tests were used to carry out the analysis. Distinct factors of water consumption patterns can be determined for both increasing and decreasing trends of water use. Throughout the data analysis, the characterization of terms was classified and analyzed by the condition of the location of water-demand. Analysis of this data provide a physical basis for the parameter configuration of a reasonable design for a domestic water demand prediction model.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.410-413
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• 2003

건설시장에서 경쟁력을 강화하고 국제정책에 대응하기 위하여 설계업체와 시공업체의 협력을 장려하는 설계시공 일관입찰방식이 대두되었다. 설계시공일괄입찰방식은 공기단축, 사업비 절약, 품질 향상을 위한 전도 유망한 입찰방식이지만 국내 건설산업에서는 제도의 미비, 관계자들의 경험 및 인식부족 등으로 이러한 장점을 살리지 못하고 있다. 이에 따라 본 연구에서는 국내 공공공사 설계시공일괄입찰방식에서의 문제점을 사업비, 품질, 사업기간의 측면에서 분석하여 개선방안을 제안하고자 한다.