• Title/Summary/Keyword: What-if Analysis

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Nursing Home Environment with Positive Distraction for Reduction of Chronic Pain and Healing (만성통증의 경감과 치유를 위한 노인요양시설의 긍정적 관심 전환 환경)

  • Chung, Miryum
    • Korean Institute of Interior Design Journal
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    • v.24 no.2
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    • pp.206-216
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    • 2015
  • Majority of the seniors living in nursing homes suffer from persistent chronic pain, which may cause depression and compromised quality of life if untreated. The environment should support them to lift their focus from current pain and worries to the positive feelings and the delight of life. The purpose of this research is to classify the healing environment elements for positive distraction, and analyze 6 international cases to see the current situation. The elements were categorized as follows, based on literature review from both healing spaces and elderly care field: spatial elements(view, natural elements, artificial elements, exercise space, garden), psychological elements(grooming area, space for privacy, meal/drink area, elements for recollection, religious space), social elements(common living area, activity/hoppy room, family/visitor area, information area, local community program space). Analysis on 6 facilities showed that each elements were reflected to designed relatively well. New inventions from workers who think distraction is important were also introduced. Healing environment for positive distraction requires delicate touch, derived from understanding characteristics and situation of the residing elderly individuals. Technology update is also significant, from audio books to virtual reality devices, since cultural life of nursing home is far behind from what the others enjoy now.

An Empirical Study on the Relationship between Competitive Strategy and e-Business Performance by e-Business Development Stages (e-비즈니스 발전단계에 따른 경쟁전략과 e-비즈니스 성과와의 관련성 분석)

  • Park, Yong-Jae;Chung, Kyung-Soo
    • The Journal of Information Systems
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    • v.16 no.2
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    • pp.1-33
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    • 2007
  • Selecting and implementing competitive strategies based on e-business is extremely important since it determines if an enterprise can continue to grow or not. Accordingly, systematic and empirical study on the implementation of e-business based on competitive strategy is required, and in-depth studies considering various e-business development stages of enterprises are also needed. The purpose of this study is to present guideline for the staff in charge and managers of enterprises to achieve competitive advantage and to increase organizational performance in e-business environments. What we have found are as follows. (1) Factors greatly influencing on competitive strategy selection through e-business were environmental uncertainty, centralization, innovative culture, technological competence, and formalization. (2) Results of the relationship between competitive strategies and e-business performance showed that each strategy had different effects on financial performance, process performance, and customer performance. and (3) Data analysis between internal and external environmental factors and competitive strategy by each e-business development stage proved that the relationships between competitive strategy and e-business performance were different based on e-business development stage. Implications of the study and guidelines for the managers are provided in the paper.

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Are the nurses overpaid or underpaid\ulcorner (간호사 임금수준의 상대적 적정성 연구)

  • 김철환;송미숙
    • Health Policy and Management
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    • v.6 no.1
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    • pp.59-84
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    • 1996
  • It is generally believed that the medical profession in Korea is an well-paid field along with legal profession. In this vein, the nursing is regarded one of well-paid profession. The actual data, however, reveals that nurses belong to low income bracket. We carefully compare the nurse's earnings with those of other professions. We selected 58 professions, which are similar in vocational characteristics and education background to nurses and conduct a regression analysis to estimate earning functions. Using the estimated coefficients, we project an optimum salary level for nurse, and compare it with the actual salary level. The estimated results show that the nurses are underpaid : their actual salary is less than the optimum level. We provide several explanations for this phenomenon : a tradition based on Confucian value, wage discrimination for women, and wage inequality among hospitals. Undercompensation will result either ratard professional development, or block the motivation for high quality of nursing care. If the current underpaying situation is not improved, a shortage of nurses along with an noticeable decline in the quality of medical services are expected. Therefore an adequate compensation for nurses must be properly assessed and addresed not only be health care authorities but also by legislators. Further research is needed to explain why there is such as wide salary inequality among nurses, and to find what cause it.

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A study on the application of the extreme value distribution model for analysis of probability of exceeding the facility capacity (시설용량을 초과하는 폐수량의 유입확률 분석을 위한 극치분포모델의 적용에 관한 연구)

  • Choi, Sunghyun;Yoo, Soonyoo;Park, Taeuk;Park, Kyoohong
    • Journal of Korean Society of Water and Wastewater
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    • v.30 no.4
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    • pp.369-379
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    • 2016
  • It was confirmed that the extreme value distribution model applies to probability of exceeding more than once a day monthly the facility capacities using data of daily maximum inflow rate for 7 wastewater treatment plant. The result of applying the extreme value model, A, D, E wastewater treatment plant has a problem compared to B, C, F, G wastewater treatment plant. but all the wastewater treatment plant has a problem except C, F wastewater treatment plant based 80% of facility capacity. In conclusion, if you make a standard in statistical aspects probability exceeding more than once a day monthly can be 'exceed day is less than a few times annually' or 'probability of exceeding more than once a day monthly is less than what percent'.

Study on the improvement of online food information services

  • Nam, Jae Won;Kim, Sun Nam;Lee, Hwansoo
    • Agribusiness and Information Management
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    • v.7 no.2
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    • pp.19-26
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    • 2015
  • Recently, food delivery apps are seeing rapid growth into a market worth 1 trillion won under a simple but unique business model of connecting nearby restaurants with consumers via smartphone. Though basic similarities with social commerce exists in aspects such as mail-order sales intermediaries, startups, types of services and market competition structure, food delivery apps resemble social commerce in many ways in that they use excessive marketing to secure market dominance, causing a spike in consumer complaints. If the excessive marketing and increase in customer complaints are not rectified, the food delivery app could also see rapid decline as it gradually grows distant from consumers, just like social commerce. Accordingly, this study will identify the factors consumers recognize as important for continuous use vis-a-vis social commerce and food delivery apps to perform an empirical analysis on what areas need improvement. After deriving the four upper factors of product, information system and service along with eight sub-factors by referring to existing literature, the areas with opportunity for improvement were derived through satisfaction level and relative importance evaluation. The results of this study present a strategic direction for maintaining customers of social commerce and food delivery apps.

Standard-based Integration of Heterogeneous Large-scale DNA Microarray Data for Improving Reusability

  • Jung, Yong;Seo, Hwa-Jeong;Park, Yu-Rang;Kim, Ji-Hun;Bien, Sang Jay;Kim, Ju-Han
    • Genomics & Informatics
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    • v.9 no.1
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    • pp.19-27
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    • 2011
  • Gene Expression Omnibus (GEO) has kept the largest amount of gene-expression microarray data that have grown exponentially. Microarray data in GEO have been generated in many different formats and often lack standardized annotation and documentation. It is hard to know if preprocessing has been applied to a dataset or not and in what way. Standard-based integration of heterogeneous data formats and metadata is necessary for comprehensive data query, analysis and mining. We attempted to integrate the heterogeneous microarray data in GEO based on Minimum Information About a Microarray Experiment (MIAME) standard. We unified the data fields of GEO Data table and mapped the attributes of GEO metadata into MIAME elements. We also discriminated non-preprocessed raw datasets from others and processed ones by using a two-step classification method. Most of the procedures were developed as semi-automated algorithms with some degree of text mining techniques. We localized 2,967 Platforms, 4,867 Series and 103,590 Samples with covering 279 organisms, integrated them into a standard-based relational schema and developed a comprehensive query interface to extract. Our tool, GEOQuest is available at http://www.snubi.org/software/GEOQuest/.

Recognition and Preference of Korean Traditional Boyangsik (보양식에 대한 인지도 및 선호도)

  • Lee, Haeng-Soon;Shin, Min-Ja
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.5
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    • pp.684-691
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    • 2008
  • The purpose of this study was to analyse the recognition and preference level associated with the preservation of Korean traditional health food. Self-administered questionnaires were collected from 289 individuals. The data was statistically analysed using I-test as well as the one-way analysis of variance (ANOVA). We studied whether or not respondents had the constitutional cuisine before Ed-comments : Please complete the sentence. Before what?. Twenty-two kinds of Korean traditional foods were randomly selected based on old cookbooks, and then recognition and preference of Korea traditional constitutional cuisine were asked. The tasting experience in the constitutional cuisine affected recognition and preference significantly. The coefficients of recognition and preference were the highest in Junbokjoog ($4.20{\pm}1.00$), Yookgejang ($4.18{\pm}1.03$), Jangagui ($4.05{\pm}1.17$), Origui ($3.97{\pm}1.19$) and Samgeitang ($3.94{\pm}1.15$). Ed-comment : Please check if this value is correct. There are two decimal points. Bosintang ($1.81{\pm}1.60$) showed a low preference compared to high recognition, and was therefore considered to be enthusiasts' cuisine only. It is believed that promoting the greater awareness of Korean traditional constitutional cuisine through the mass media would result in a higher recognition and preference of the same.

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Morning-afternoon asymmetry of geosynchronous magnetic field variations during geomagnetic sudden commencements

  • Park, Jong-Sun;Kim, Khan-Hyuk;Sung, Suk-Kyung;Lee, Dong-Hun
    • Bulletin of the Korean Space Science Society
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    • 2010.04a
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    • pp.40.2-40.2
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    • 2010
  • It has been reported that geosynchronous magnetopause crossings are more frequently observed in the prenoon sector than in the postnoon sector, indicating a dawn-dusk magnetopause asymmetry during extreme solar wind conditions. Motivated by these observations, we investigate geosynchronous magnetic field variations normalized to SYM-H when sudden commencements (SC) are observed on the ground. From a statistical analysis of the geosynchronous magnetic field responses to SC events from 1997 to 2006, we found that the normalized SC amplitude at geosynchronous orbit is larger in the morning sector than in the afternoon sector. In order to examine if this morning-afternoon asymmetry at geosynchronous orbit occurs only during disturbed geomagnetic conditions, we compared the geosynchronous magnetic field strength obtained in the morning and afternoon during undisturbed intervals (Kp < 3). We found that the asymmetry appears under undisturbed geomagnetic conditions and it is not due to solar wind aberration. This indicates that the morning-afternoon asymmetry was not strongly affected by changes in solar wind condition. Using solar wind data, we discuss what causes the morning-afternoon asymmetry at geosynchronous orbit.

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Analysing and Neutralizing the Stuxnet's Stealthing Techniques (Stuxnet의 파일 은닉 기법 분석 및 무력화 방법 연구)

  • Lee, Kyung-Roul;Yim, Kang-Bin
    • Journal of Advanced Navigation Technology
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    • v.14 no.6
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    • pp.838-844
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    • 2010
  • This paper introduces Stuxnet, a malicious ware that presently stimulates severity of the cyber warfare worldwide, analyses how it propagates and what it affects if infected and proposes a process to cure infected systems according to its organization. Malicious wares such as Stuxnet secretes themselves within the system during propagation and it is required to analyze file hiding techniques they use to detect and remove them. According to the result of the analysis in this paper, Stuxnet uses the library hooking technique and the file system filter driver technique on both user level and kernel level, respectively, to hide its files. Therefore, this paper shows the results of the Stuxnet's file hiding approach and proposes an idea for countermeasure to neutralize it. A pilot implementation of the idea afterward shows that the stealthing techniques of Stuxnet are removed by the implementation.

A Quantitative Trade Model with Unemployment

  • Lee, Kyu Yub
    • East Asian Economic Review
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    • v.23 no.1
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    • pp.27-53
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    • 2019
  • I employ search-and-matching to a multi-country and multi-sector Ricardian model with input-output linkages, trade in intermediate goods, and sectoral heterogeneity, in order to quantify the welfare effects from tariff changes. The paper shows that labor market frictions can be a source of comparative advantage in the sense that better labor market conditions contribute to lower cost in production. Labor market frictions play a critical role in determining the probability of exporting goods to trading partners, and interact with bilateral trade share, price, expenditures, etc. Unemployment and changes in unemployment rates due to tariff reductions contribute welfare changes across countries, implying that welfare effects based on quantitative trade models with full-employment are likely to be biased. I confirm the biased welfare effects by revisiting Caliendo and Parro (2015), who conduct an analysis of the welfare effects from the NAFTA from 1993 to 2005. I show that the welfare gap between theirs and mine has a positive correlation with changes in observed unemployment rates across countries. With the constructed model, I further conduct counterfactual exercises by asking what would happen if China's tariffs remain unchanged from 2006 to 2015. It turns out that there are mild welfare effects to trading partners in the world trading system.