• Title/Summary/Keyword: Multidimensional analysis

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High School Gifted Students' Perception on Cheating in School (개념도를 통해서 본 고등학교 영재학생의 학업부정행위에 관한 인식)

  • Kim, Sang-Woo;Han, Ki-Soon
    • Journal of Gifted/Talented Education
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    • v.23 no.1
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    • pp.67-87
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    • 2013
  • This study explores high school gifted students' perception of cheating in school using the concept mapping method. The map shows the gifted students' concept structure and the different perception between gifted and non-gifted students on cheating. For the purpose, 63 high school gifted students participated at the brainstorming stage to gather the possible related statements. Finally, 64 statements were confirmed and these were divided and evaluated by 13 focus group students. Then, they were analyzed by multidimensional scaling and processed by hierarchical cluster analysis. The results compiled from this procedure show that high school gifted students' perception of cheating is classified into five clusters: "unacceptable cheating behaviors of friends", "an inseparable relation among social structure, giftedness and cheating", "conflict, coping skills, and tolerance related to the cheating", "immorality in one's inner person" and "the judgement based on morality and social justice". In addition, 150 gifted students and 160 non-gifted students checked the degree of agreement to each statement with the likert 6 points scale and the result showed that there was no significant difference in two clusters, "unacceptable cheating behaviors of friends" and "the judgement based on morality and justice", while it turned out that there were significant perception gaps in three clusters, "inseparable relation among social structure, giftedness and cheating", "conflict, coping skills, and tolerance related to the cheating" and "immorality in one's inner person". Implications of the study related to the gifted students' moral behaviors were discussed in depth.

Edge-based spatial descriptor for content-based Image retrieval (내용 기반 영상 검색을 위한 에지 기반의 공간 기술자)

  • Kim, Nac-Woo;Kim, Tae-Yong;Choi, Jong-Soo
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.42 no.5 s.305
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    • pp.1-10
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    • 2005
  • Content-based image retrieval systems are being actively investigated owing to their ability to retrieve images based on the actual visual content rather than by manually associated textual descriptions. In this paper, we propose a novel approach for image retrieval based on edge structural features using edge correlogram and color coherence vector. After color vector angle is applied in the pre-processing stage, an image is divided into two image parts (high frequency image and low frequency image). In low frequency image, the global color distribution of smooth pixels is extracted by color coherence vector, thereby incorporating spatial information into the proposed color descriptor. Meanwhile, in high frequency image, the distribution of the gray pairs at an edge is extracted by edge correlogram. Since the proposed algorithm includes the spatial and edge information between colors, it can robustly reduce the effect of the significant change in appearance and shape in image analysis. The proposed method provides a simple and flexible description for the image with complex scene in terms of structural features of the image contents. Experimental evidence suggests that our algorithm outperforms the recently histogram refinement methods for image indexing and retrieval. To index the multidimensional feature vectors, we use R*-tree structure.

Comparing Multidimensional Analysis Methods in Cognitive Function of Korean-Chinese Stroke Patients in China (중국조선족 뇌졸중환자의 인지기능의 다면적 분석비교)

  • Liu, Ming Ren;Lin, Yin Zi;So, Hee-Young
    • The Korean Journal of Rehabilitation Nursing
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    • v.9 no.1
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    • pp.15-24
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    • 2006
  • Purpose: This study was to explore the cognitive function of Korean-Chinese stroke patient in China. Method: The study sample was 100 who were possible to communicate and agreed. The data were collected from one Brain's hospital at Yanji in China and by trained nurse from December 12, 2005 to April 28, 2006. The measurement tools were Digit span, Trail making, and MMSE-K. The data were analysed by SPSS Win 11.5 using frequency, t-test, ANOVA, and Pearson's correlation coefficients. Results: The mean score of DSF was 5.07, 3.42 of DSB, 161.37 of TMA, 229.28 of TMB, 22.64 of MMSE-K. There was a significant difference in DSF (F=6.35, p=.001), DSB (F=6.10, p=.001), TMA (F=3.53, p=.018), TMB (F=3.26, p=.025), MMSE-K score (F=12.97, p=.000) according to age, and DSF (F=6.67, p=.000), DSB (F=6.01, p=.000), TMA (F=5.82, p=.001), TMB (F=6.23, p=.001), and MMSE-K score (F=13.02, p=.000) according to educational level, and DSF (F=5.35, p=.006), DSB (F=3.16, p=.047), TMA (F=3.30, p=.041), TMB (F=3.42, p=.037), and MMSE-K score (F=4.95, p=.009) according to duration of disease, and DSB (F=3.54, p=.018), and MMSE-K (F=6.05, p=.001) according to frequencies of hospitalization. There was high correlation between DSF and DSB (r=.581, p=.000), TMA and TMB (r=.936, p=.000), MMSE-K and DSF (r=.579, p=.000), MMSE-K and DSB (r=.591, p=.000), DSF and TMA (r=.727, p=.000), and DSF and TMB (r=.721, p=.000). Conclusion: The cognitive evaluation score of Korean-Chinese stroke patients in China was in normal limit. The age, educational level, duration of disease and income were significant demographic characteristic affecting cognitive function. Further study need to compare the cognitive function of Korean-Chinese stoke patients in China and stoke patients in Korea.

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Eco-Systematic Approach to Suicidal Ideation of the Elderly - Focused on the Group Comparison according to their Suicidal Ideation in the Previous Year - (노인의 자살생각에 대한 생태체계적 접근 - 전년도 자살생각 여부집단 비교를 중심으로 -)

  • Bae, Gwang Il
    • Korean Journal of Social Welfare
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    • v.69 no.3
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    • pp.35-63
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    • 2017
  • This study conducted researches to get related basic materials and grope for a way to prevent or treat suicidal ideation. For the researches, the study examined eco-systematical variables of suicidal ideation of those who are 65 years or older, and the influence of the change in the eco-systematical variables by using the source materials researched in sixteen cities/provinces over the country from KOWEPS(Korea Welfare Panel Study), and then reviewed if there any difference according to whether they had suicidal ideation or thought in the previous year. The analysis result shows that each variable of the ecological system such as individual, family, and social system has an effect on the elderly's suicidal ideation, and there is difference in the influence factor according to whether they had suicidal ideation in the previous year or not. The result implies the policy to cope with the elderly's suicide needs multidimensional approach of individual, family, and society rather than a simple individual level. And also there should be a different support or service according to their situation or conditions like previous suicidal ideation. Especially, it is quite significant that the factors do not influence the elderly who had suicidal ideation in the previous year, but have an effect on those who did not have any suicidal ideation, which means that the proactive and preventive support related to suicidal ideation would guarantee a more efficient and effective policy.

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A New Model of Educational Service in the Service Era (서비스시대 교육서비스 신모델 연구)

  • Kim, Hyunsoo
    • Journal of Service Research and Studies
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    • v.8 no.2
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    • pp.25-39
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    • 2018
  • In the period of great change in human society, a change in educational services is also necessary. Thus, the current research investigates a new model of educational services to prepare people to be successful in an era of service and the fourth industrial revolution. We analyzed all the educational service models from the first educational institution, The Academy, founded by Plato to one of the most innovative institutions, Minerva schools. Then, we designed both an educational institution model and an educational service model that will cultivate and educate prospective students to be multidimensional to fit to the new upcoming eras. Since the era of service in the 21st century is also the era of job creation, we designed models focused on developing the broad knowledge and practical skills need to solve the most complex issues of our time. A new model was designed based on the results of the survey of existing major programs, analysis of the demands of the new generation, competency requirements, and etc. The newly designed conceptual model was improved from study focusing on tools to study that focuses on intrinsic discipline and competence, nurturing dream and imagination. In order to realize the new educational service, we developed technical conditions and a methodology for improving educational service performance. In the future, it is necessary to deepen the study and carry out research on implementing new educational service. In addition, an empirical study of the performance of the new model will also be needed.

Conceptualizing Caregiving Supports for Families Who Have Children with Disabilities: A Concept Mapping Application (장애아동 가족을 위한 돌봄지원 개념화: 개념도 연구법을 활용하여)

  • Kim, Yu-Ri;Choi, Bogcheon
    • The Journal of the Korea Contents Association
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    • v.17 no.9
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    • pp.498-509
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    • 2017
  • Caregiving supports have been provided to decrease caregiving burdens of families of children with disabilities, but there are needs for improving caregiving services. The purpose of this study was to conceptualize content items and domains of caregiving supports from the perspectives of parents and service providers in order to help families of children with disabilities to decrease their caregiving burdens. This study used concept mapping that was useful for service-needs identification and program development. First, focus group interviews with two parent groups and one service provider group were conducted to generate a total of 31 items. Also, they sorted the items in terms of conceptual similarity and rated the items in terms of their needs. Next, the sorting data were analyzed using multidimensional scaling and cluster analysis and the rating data were calculated for mean. The results provided 31 content items in four domains: regular caregiving, activity-based caregiving, parent empowerment for caregving, and strengthening family relationships. All the domains were rated as important to decrease caregiving burdens. This study has practical implications for improving caregiving services and the related policies.

Effect of Environmental Variables on the Inter- and Subtidal Macrobenthic Communities in the Iwon Dike Area (이원방조제 주변의 조간대 및 조하대 대형저서동물의 군집과 환경요인과의 관계)

  • LEE Jae-Hac;YU Ok Hwan;LEE Hyung-Gon;PARK Ja-Yang
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.37 no.4
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    • pp.295-306
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    • 2004
  • Spatial patterns in the macrobenthic community structure in the inter- and subtidal zones in front of the Iwon Dike and environmental variables were examined in August 2001, In total, 156 macrobenthic species(123 intertidal species and 90 subtidal species) were recorded during this study, predominately polychaetes $(40{\%})$, bivalves $(22{\%})$, and crustaceans $(22{\%})$. Polychaetes made up less than $40{\%}$ of the intertidal communitr, but more than $50{\%}$ of the subtidal community. The mean density during this study was $1,456ind./m^{2}.$ Multivariate analysis (multidimensional scaling) revealed significant differences in community structure among four regions: near the Iwon dike (B1), the high and middle intertidal zone (B2), low intertidal zone (Al), and subtidal zone (A2). The number of species, total density, and diversity (H') varied significantly among the four regions. The distribution of macrobenthic community was affected by environmental variables, such as ${\%}$ silt/clay content, total sulfide, lose of ignition, and chemical oxygen demand. These environmental variables were negatively correlated with the dominant species (Nephtys polybranchia, Umbonium thomasi, and Scoloplos armiger) in the intertidal area, but positively correlated with the dominant species (Lumbrineris cruzensis, Notomastus latericeus, and Moerella sp.) in the subtidal area. Environmental variables $({\%}\;silt/clay content and total sulfide)$ were positively correlated with the dominant species (Heteromastus filiformis) in region Bl, but negatively correlated with the dominant species (Umbonium thomasi and Scoloplos koreanus) in region B2. Amphipods Urothoe spp. and Monoculodes koreanus were the dominant species in region Al. Umbonium thomasi, the dominant species in region B2, was not found in regions Bl or Al. We suggest that the inter-specific competition for territory and exposure to seawater may be important factors controlling the macrobenthic community structure in the inter- and subtidal zones in front of the Iwon Dike.

What Kinds of Rearing Stress Do the Mothers of the Gifted Have?: Using a Concept Mapping Approach (영재 자녀를 둔 어머니들의 양육 스트레스 분석: 개념도 기법을 활용하여)

  • Han, Ki-Soon;Lee, Young-Mi
    • Journal of Gifted/Talented Education
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    • v.22 no.4
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    • pp.893-916
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    • 2012
  • This research investigates gifted students' mothers' rearing stress based on the concept mapping method. For this, 12 gifted students' mothers solicited, gathered and analyzed related statements, and then did multidimensional scaling and hierarchical cluster analysis. The stress value was .273 which was appropriate for the two level concept mapping study. In addition 101 mothers of gifted students rated for the rearing stresses they experience. Results were as follows. First, 79 concrete statements were solicited and as a result of concept mapping were categorized as 'burden and conflict as mothers of the gifted', 'possible negative characteristics due to the giftedness', and 'self-esteem and pressure by the title of the gifted'. Especially following items showed relatively high average: worrying about how to give the child a specific help for his/her career(M=4.65); worrying that she might be intervening too much in their child's behaviors(M=4.60); getting pressured supporting the child to get involved in the gifted education system continually(M=4.46); worrying if her child is not developing his/her talent enough due to the lack of time and money(M=4.44); being concerned that her high expectations might be putting her child under too much pressure (M=4.43). Implications of the study related to gifted education practices were discussed.

Characteristics of Quality and Volatile Flavor Compounds in Raw and Frozen Pine-mushroom (Tricholoma matsutake) (생송이 버섯과 냉동송이 버섯의 품질 및 향기 성분 특성)

  • Ku, Kyung-Hyung;Cho, Myung-Hee;Park, Wan-Soo
    • Korean Journal of Food Science and Technology
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    • v.34 no.4
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    • pp.625-630
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    • 2002
  • Raw pine-mushrooms (Tricholoma matsutake Sing.) of four grades and those frozen were analyzed for proximate composition, smell pattern, volatile flavor compounds, and sensory evaluation. Proximate compositions of raw pine-mushrooms (A-C, regular grade) were $89.48{\sim}90.77%$ moisture, 6.81% ash excluding D (below regular grade) sample, $2.24{\sim}2.52%$ crude lipid, and $16.19{\sim}20.01%$ crude protein. Proximate compositions of frozen pine-mushrooms preserved for 6 months at -20 and $-70^{\circ}C$ showed no difference compared with raw pine-mushrooms. Results of smell pattern and multidimensional analysis revealed raw pine-mushrooms showed no differences among samples, but frozen pine-mushrooms differed significantly depending on the grade. Volatile flavor compounds of pine-mushrooms were analyzed using a purge and trap method with GC/MSD. Twenty-nine volatile compounds were identified, among which alcohols such as 1-octen-3-ol, 2-octen-1-ol, 3-methyl-butanol, and n-octanol were commonly found in all pine-mushroom samples. In sensory attributes, raw pine-mushrooms were not significantly different at 5% level, and sample D of frozen pine-mushrooms scored lower than samples $A{\sim}C$.

Evaluation of Water Productivity of Thailand and Improvement Measure Proposals

  • Suthidhummajit, Chokchai;Koontanakulvong, Sucharit
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.176-176
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    • 2019
  • Thailand had issued a national strategic development master plan with issues related to water resources and water security in the entire water management. Water resources are an important factor of living and development of the country's socio-economy to be stable, prosperous and sustainable. Therefore, water management in both multidimensional and multi-sectoral systems is important and will supports socio-economic and environmental development. The direction of national development in accordance with the national strategic framework for 20 years that requires the country to level up security level in terms of water, energy and food. To response to the proposed goals, there is a subplan to increase water productivity of the entire water system for economical development use by evaluating use value and to create more value added from water use to meet international standard level. This study aims to evaluate the water productivity of Thailand in each basin and all sectors such as agricultural sector, service and industrial sectors by using the water use data from water account analysis and GDP data from NESDB during the past 10 years (1996-2015). The comparison of water productivity with other countries will also be conducted and in addition, the measures to improve water productivity in next 20 years will be explored to response to the National Strategic Master Plan goals. Water productivity is defined as output per unit of water depleted. The simplest way to compare water productivity across different enterprises is in monetary terms. World Bank presents water productivity as an indication of the efficiency by which each country uses its water resources. There are two data sets used for water productivity analyses, i.e., the first is water use data at end users and the second is Gross Domestic Product. The water use at end users are estimated by water account method based on the System of Environmental-Economic Accounting for Water (SEEA-Water) concept of United Nations. The water account shows the analyses of the water balance between the use and supply of each water resource in physical terms. The water supply and use linkage in the water account analyses separated into each phases, i.e., water sources, water managers, water service providers, water user at end user under water regulators of all kinds of water use activities such as household, industrial, agricultural, tourism, hydropower, and ecological conservation uses. The Gross Domestic Product (GDP), a well- known measuring method of the national economic growth is not actually a comprehensive approach to describe all aspects of national economic status, since GDP does not take into account the costs of the negative impacts to natural resources that result from the overexploitation of development projects, however, at present, integrating the environment with the economy of a country to measure its economic growth with GDP is acceptable worldwide. The study results will show the water use at each basin, use types at end users, water productivity in each sector from 1996-2015 compared with other countries, Besides the productivity improvement measures will be explored and proposed for the National Strategic Master Plan.

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