• Title/Summary/Keyword: statistical data analysis

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An Analysis of Consumers Preferences and Price Sensitivity when Purchasing Domestic Wine (국내산 포도주에 대한 소비자 선호 및 가격 민감성 분석)

  • Son, Mi-Yeon;Ryu, Jin-Chun;Kim, Tea-Kyun
    • Food Science and Preservation
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    • v.16 no.1
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    • pp.17-22
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    • 2009
  • This study analyzes consumers preferences and price sensitivity when buying domestic wine. Data were collected from the consumers (n=200) living in Daegu, Korea. Statistical analyses evaluated purchase, frequency, perceptual mapping, and price sensitivity measurement (PSMs) using SPSS software. Among three domestic wines, ice wine (Vin Coree) attracted most customer satisfaction. The second most popular wine was a white wine (Vin Coree) and the third was a red wine (Royal Campbell). The colors of the red and white wines were highly valued, and bottle design was reported to be the best feature of ice wine. Red wine needs to increase in price and to improve in quality because the price is lower than the point of marginal cheapness. White wine should be reduced in price because the price is higher than the optimal pricing point. The price of ice wine is equal to the point of marginal expensiveness; Thus, the price of ice wine should be reduced.

Food Allergy Awareness and Nutritional Management by Preschooler's Faculty Members of Child Care Facilities (보육기관에서 유아기 아동의 식품 알레르기 인지 및 관리 현황)

  • Kim, Soo Bin;Kim, Jung Hee
    • Korean Journal of Community Nutrition
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    • v.22 no.4
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    • pp.298-306
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    • 2017
  • Objectives: The purpose of this study was to investigate the awareness and nutritional management of food allergy (FA) by preschooler's faculty members in child care centers. Methods: A questionnaire survey was conducted among faculty members of child care centers in Seoul. The questionnaire was designed to identify the prevalence of food allergies, requirements of food allergy support and differences in food management depending on the presence of allergic diseases. After excluding incomplete responses, the data of 171 faculties in 137 child care centers (95.0%) were used for statistical analysis. Results: According to the 137 collected questionnaires, 96 child care centers asked parents about their children's allergic disease and 151 children from 66 child care centers had food allergies. A reported 89 children from 43 child care centers had food restrictions. However, 9 child care centers (21.0%) were not aware of food restriction for children with food allergies. Only 6 child care centers (14.0%) supplied substitute foods with the same amount and type of nutrients. Forty eight faculties (28.1%) received training about food allergies. Although there were some differences according to institution type, most of the faculty members wanted food allergy-related support. Conclusions: This study identified a lack of food allergy training for faculty members in child care centers. For proper management, it is necessary for faculty members of child care centers to be educated on overall food allergies. Food allergy-related support such as menus without allergenic ingredients, guidelines on emergency care for food allergies and anaphylaxis should be provided for faculty members in child care centers.

A Study on the Factors affecting Cyber-Career-Counseling-Activation based on Structural Equation Model(SEM) (구조방정식 모형을 이용한 사이버진로상담 활성화 영향요인에 관한 연구)

  • Lee, Young-Ja;Baek, Hyeon-Gi
    • Journal of Digital Contents Society
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    • v.9 no.3
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    • pp.379-388
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    • 2008
  • This paper is to redefine the concept of Cyber Career Counseling Activation(=C-C-C-A) and verify the effects of the factors affecting the C-C-C-A at Korean academic high school level in Kyunggi Province. In this research, we hypothesize that the three independent variables increase the effects of Cyber Career Counseling Activation.. To discuss the hypothesis, we analyzed survey data of 322 students who had taken Cyber Career Counseling in December 2007 based on Structural Equation Model. The results are as follows: First, the three crucial factors(Expanding C-C-C Opportunities, Improving C-C-C Service, Establishing C-C-C Service System) increase the C-C-C-A effectiveness. Second, as a result of Confirmatory Factor Analysis(CFA), the goodness of fit indices(GFI, AGFI, CFI, RMSEA) demonstrate statistical significance and fitness of the C-C-C-A Model. Therefore, the outcomes show that the three factors are the significant ones of Cyber Career Counseling Activation Model.

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A Study on the Application of a Dementia Prevention Program and Its Effect Test (치매예방 프로그램 운영 및 효과검증 연구)

  • Hwang, Ok-Nam;Yoon, Sook-Rye;Hwang, Hye-Yeon;Nam, Ki-Seok
    • The Korean Journal of Rehabilitation Nursing
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    • v.5 no.2
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    • pp.156-165
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    • 2002
  • The objective of this study was to apply a dementia prevention program to the subjects who were suspected of dementia and test its effect. This study was one group pretest-posttest design. The dementia prevention program was applied for 20 weeks to the 19 subjects who were suspected of dementia after a screen test among 638 subjects enrolled in 10 senior citizen's centers in G city. The scores of self-efficacy, cognition, quality of life were measured before and after the program. The data collected were analyzed using a SPSS (statistical analysis system) program, and frequencies, averages and standard deviations were obtained. The differences of the scores of the pretest and posttest were analyzed with Mann-Whitney test and sign test. The results were as follows: 1. After the program, the average score of self-efficacy was increased from 75.31 (standard deviation 11.99) to 84.26 (standard deviation 13.92). 2. There are no differences between the average scores of physical and psychological quality of life, however, the average score of social quality of life was slightly increased from 2.25 (standard deviation 0.40) to 2.53 (standard deviation 0.43), and the overall score of social quality of life was low. 3. The average score of cognition was significantly increased from 21.00 (standard deviation 2.60) to 24.58 (standard deviation 3.37), thus, it was found that the program was effective to improve the cognition level. 4. The score differences of self-efficacy, quality of life, cognition between the pretest and posttest were statistically significant. 5. The score differences of quality of life between the pretest and posttest were found to be dependent on marital status, exercise and regular checkup yes or no. In conclusion, the program was effective to prevent the subjects suspected of dementia from dementia.

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An Analytical Study on the Influence of Resistance Factors in Adoption and Diffusion of Innovation as for Introducing ERP Systems into Universities (전사적자원관리(ERP) 시스템의 조직 내 확산에 대한 저항요인 분석)

  • Kim, Hyeon-Jeong;Kim, Young-Hee;Kim, Moon-Sun
    • The Journal of Society for e-Business Studies
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    • v.18 no.1
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    • pp.129-146
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    • 2013
  • This paper focuses on the systematic approach to handle possible resistance by the members of an organization which adopts ERP system. We also analyze various factors that affect the members' receptivity to the new system. The analytic result from the data of 169 universities shows that emotional factors such as fear and doubt play a significant role, while other factors such as relative advantages of efficiency, relative advantages of system and technology support does not. This research demonstrates both the psychological and behavioral aspects of resistance to technology, and then provides a new perspective on the adoption and diffusion of technological innovation in an organization by systematically analyzing the possible negative consequences while the majority of existing research emphasizes on the rosy prospects of the innovation.

A comparative study on chemical composition of total saponins extracted from fermented and white ginseng under the effect of macrophage phagocytotic function

  • Xiao, Dan;Xiu, Yang;Yue, Hao;Sun, Xiuli;Zhao, Huanxi;Liu, Shuying
    • Journal of Ginseng Research
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    • v.41 no.3
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    • pp.379-385
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    • 2017
  • In this study, white ginseng was used as the raw material, which was fermented with Paecilomyces hepiali through solid culture medium, to produce ginsenosides with modified chemical composition. The characteristic chemical markers of the products thus produced were investigated using rapid resolution liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (RRLC-QTOF-MS). Chemical profiling data were obtained, which were then subjected to multivariate statistical analysis for the systematic comparison of active ingredients in white ginseng and fermented ginseng to understand the beneficial properties of ginsenoside metabolites. In addition, the effects of these components on biological activity were investigated to understand the improvements in the phagocytic function of macrophages in zebrafish. According to the established RRLC-QTOF-MS chemical profiling, the contents in ginsenosides of high molecular weight, especially malonylated protopanaxadiol ginsenosides, were slightly reduced due to the fermentation, which were hydrolyzed into rare and minor ginsenosides. Moreover, the facilitation of macrophage phagocytic function in zebrafish following treatment with different ginseng extracts confirmed that the fermented ginseng is superior to white ginseng. Our results prove that there is a profound change in chemical constituents of ginsenosides during the fermentation process, which has a significant effect on the biological activity of these compounds.

Improvement of Physical Condition Assessment in Water Mains (상수도 관로의 물리적 상태평가 기준 개선)

  • Kim, Ju-Hwan;Lee, Doo-Jin;Bae, Cheol-Ho;Ahn, Hyo-Won;Hwang, Jin-Soo;Choi, Doo-Yong
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.1710-1715
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    • 2010
  • Service life of water pipes buried in the underground is considerably affected from various factors such as environmental characteristics, pipe characteristics, operation and maintenance, etc. Therefore it is difficult to determine their service life as uniformly the same value assigned by related laws and ordinances. As a result, the service life should be determined by the technical judgement based on the assessment for the condition of water pipes. In this study, It was established that the methodology could predict present and future failure risk, and plan short and long-term strategies for replacement/rehabilitation through the assessment for the physical deterioration and economical values of buried water pipe. The methodology was applied for the verification and reliability to several sites selected in multi-regional transmission pipelines. The proposed method could helps to support reasonable and economical decision of rehabilitation/replacement in the present and future. To improve conventional assessment method of aged water pipes, affecting factors are simplified based on the statistical analysis results from the measured data in the field and the physical deterioration mechanism for better reliability. Also, the guide-line is developed to carry out the reasonal rehabilitation planning through water pipe condition assessment.

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Development of Gait Monitoring System Based on 3-axis Accelerometer and Foot Pressure Sensors (3축 가속도 센서와 족압 감지 시스템을 활용한 보행 모니터링 시스템 개발)

  • Ryu, In-Hwan;Lee, Sunwoo;Jeong, Hyungi;Byun, Kihoon;Kwon, Jang-Woo
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.10 no.3
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    • pp.199-206
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    • 2016
  • Most Koreans walk having their toes in or out, because of their sedentary lifestyles. In addition, using smartphone while walking makes having a desirable walking posture even more difficult. The goal of this study is to make a simple system which easily analyze and inform any person his or her personal walking habit. To discriminate gait patterns, we developed a gait monitoring system using a 3-axis accelerometer and a foot pressure monitoring system. The developed system, with an accelerometer and a few pressure sensors, can acquire subject's foot pressure and how tilted his or her torso is. We analyzed the relationship between type of gate and sensor data using this information. As the result of analysis, we could find out that statistical parameters like standard deviation and root mean square are good for discriminating among torso postures, and k-nearest neighbor algorithm is good at clustering gait patterns. The developed system is expected to be applicable to medical or athletic fields at a low price.

Development and Validation of Teaching-Learning Model for Cyber Education of Giftedness (사이버영재교육을 위한 교수-학습 모형의 개발 및 검증)

  • Lee, Jae-Ho;Hong, Chang-Euy
    • Journal of Gifted/Talented Education
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    • v.19 no.1
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    • pp.119-140
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    • 2009
  • This paper examined its possibility and made its new definition by finding relevant bases in order to make a close inquiry into its Identity and direction at this point when cyber-based gifted education academy is established and operated again by its necessity And 4 models which can be used in special education for the gifted were developed making a link with special education for the gifted by collecting and re-classifying cyber educational methods developed by basic research as priority of the educational method which is considered to be the most urgent issue in practical cyber learning. It is a project-type cooperation education model, an information collection-type research education model, a community-type discussion education model, and a problem focus-type e-PBL education model. To apply developed leaching-learning models to reality, students at gifted education academy in Gyeonggi Cyber Gifted Province were imputed models in different ways respectively for 4 months. As a result of analysis and statistical data of activity level and satisfaction level of students who participated in learning activity, it appeared that high level of satisfaction and active activity level were induced compared to the previous method based on tasks. It is expected that this paper will provide the bases when each cyber-based gifted education academy plans operation plan later on, and it will provide proper methods when cyber guidance teachers plan class activities.

The Contents of Heavy Metal in Fruits and Vegetables Collected from Jinju District (진주지방(晋州地方)의 원예작물중(園藝作物中) 중금속함량(重金屬含量))

  • Kim, Myung-Chan;Sung, Nack-Kie;Shim, Ki-Hwan;Lee, Min-Hyo;Lee, Jae-In
    • Korean Journal of Food Science and Technology
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    • v.13 no.4
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    • pp.299-306
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    • 1981
  • Contents of heavy metals in fruits and vegetables collected from Jinju district of Korea during June 1980 to March 1981 were determined. Statistical analysis of the data showed the maximum, minimum, mean and standard deviation for each variable. The ranges of their amounts in fruits and vegetables were lead, $trace{\sim}0.829\;ppm\;;mercury,\:ND{\sim}0.368\;ppm;cadmium,\;ND{\sim}0.264\;ppm;\;arsenic,\;trace{\sim}1.289\;ppm;\;copper,0.200{\sim}3.759\;ppm;\;zinc,\;0.327{\sim}21.663\;ppm;\; manganese,\;0.828{\sim}22.413\;ppm;\;iron,\;0.201{\sim}32.425 ppm,$ respectively and the content of chromium was in trace for 4 samples.

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