• 제목/요약/키워드: Category effect

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Category-Based Feature Inference: Testing Causal Strength (범주기반 속성추론: 인과관계 강도의 검증)

  • JunHyoung Jo;Hyung-Chul O. Li;ShinWoo Kim
    • Science of Emotion and Sensibility
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    • v.26 no.1
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    • pp.55-64
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    • 2023
  • This research investigated category-based feature inference when category features were connected in common cause and common effect causal networks. Previous studies that tested feature inference in causal categories showed unique inference patterns depending on causal direction, number of related features, whether the to-be-inferred feature was cause or effect, etc. However, these prior studies primarily focused on inference pattens that arise from causal relations, and few studies directly explored how the effects of causal relations vary depending on causal strength. We tested feature inference in common cause (Expt. 1) and common effect (Expt. 2) causal categories when casual strengths were either strong or weak. To this end, we had participants learn causal categories where features were causally linked and then perform feature inference task. The results showed that causal strengths as well as causal relations had important impacts on feature inference. When causal strength was strong, inference for common cause feature became weaker but that for the common effect feature became stronger. Moreover, when causal strength was strong and common cause was present, inference for the effect features became stronger, whereas the results were reversed in common effect networks. In particular, in common effect networks, casual discounting was more evident with strong causal strength. These results consistently demonstrate that participants consider not only causal relations but also causal strength in feature inference of causal categories.

An Analysis of Household Expenditures for Wedding, Funeral, Ancestor Worship, and 60th Birthday Anniversary (도시가계의 가정의례비 지출에 대한 관련요인 분석)

  • 이윤금
    • Journal of the Korean Home Economics Association
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    • v.36 no.9
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    • pp.35-47
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    • 1998
  • The purpose of this study was to investigate the effect of household characteristics on household expenditures on wedding, funeral, ancestor worship, and 60th birthday anniversary. Data for this study were from the 1996 Annual Report on the Family Income and Expenditure Survey. OLS regression analysis was used to identify the effect of household characteristics on money spent on family ceremony expenditures. The household income, age of head, education of head, and family size were all significant factors for understanding family ceremony expenditures. The results also indicated that additional income from wife's labor force participation was associated with lesser expenditures on family ceremony, while business income, asset income, and transfer income had no effects on this category. The effect of the third quarter of 1996 was significant on family ceremony expenditures, indication that households spent significantly less for this category in the summer than did in the winter, holding other factors constant.

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The Effect of the classification problem solving of Thinking Science Program on the Classified Activities on Elementary School 5th grade category (Thinking Science 프로그램 중 분류활동이 초등학교 5학년 학생의 분류문제해결능력에 미치는 영향)

  • Lee, Sung-Hyun;Han, Shin
    • Journal of the Korean Society of Earth Science Education
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    • v.4 no.2
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    • pp.102-107
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    • 2011
  • In this study, elementary school science program, this category did not affect any troubleshooting analyzed. Thinking Science Program to buy for them in group activities by using one of the elements of a program of treatment and cognitive level effects were two kinds of research questions. 102, 5th grade four classes were involved, these two classes of the experimental group and the remaining two classes were divided into a control group. Pre-test between the two groups is compared to the level and classification problem-solving skills but the skills did not show a statistically significant difference. Thinking Science activity after application of classification and posttest the experimental group than in the control group problem solving abilities of students classified at the level of statistical significance was higher. Thinking Science program is a treatment effect for each level of analysis, tests, regardless of cognitive level was more effective. Through theses findings, Thinking Science activities 5th grade category classification problem-solving skills of students found to be effective in improving and these types of programs actively introduced in the field suggests that we need to see.

Effects of Land Cover Change on Summer Urban Heat Island Intensity and Heat Index in Seoul Metropolitan Area, Korea (서울 수도권 지역의 토지 피복 변화가 여름철 도시열섬 강도와 체감온도에 미치는 영향)

  • Hong, Seon-Ok;Byon, Jae-Young;Kim, Do-Hyeong;Lee, Sang-Sam;Kim, Yeon-Hee
    • Atmosphere
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    • v.31 no.2
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    • pp.143-156
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    • 2021
  • This study investigates the impacts of land cover change due to urbanization on the Urban Heat Island Intensity (UHII) and the Heat Index (HI) over the Seoul metropolitan area using the Unified Model (UM) with the Met Office Reading Urban Surface Exchange Scheme (MORUSES) during the heat wave from 16, July to 5, August 2018. Two simulations are performed with the late 1980s land-use (EXP1980) and the late 2000s land-use (EXP2000). EXP2000 is verified using Automatic Weather Station (AWS) data from 85 points in the study area, and observation sites are classified into two categories according to the urban fraction change over 20 years; Category A is 0.2 or less increase, and Category B is 0.2 or more increase. The 1.5-m temperature and relative humidity in Category B increase by up to 1.1℃ and decreased by 7% at 1900 LST and 2000 LST, respectively. This means that the effect of the urban fraction changes is higher at night. UHII increases by up to 0.3℃ in Category A and 1.3℃ in Category B at 1900 LST. Analysis of the surface energy balance shows that the heat store for a short time during the daytime and release at nighttime with upward sensible heat flux. As a result of the HI, there is no significant difference between the two experiments during the daytime, but it increases 1.6℃ in category B during the nighttime (2200 LST). The results indicate that the urbanization increase both UHII, and HI, but the times of maximum difference between EXP1980 and EXP2000 are different.

Relationship between nutritional status, psychosocial stimulation, and cognitive development in preschool children in Indonesia

  • Warsito, Oktarina;Khomsan, Ali;Hernawati, Neti;Anwar, Faisal
    • Nutrition Research and Practice
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    • v.6 no.5
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    • pp.451-457
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    • 2012
  • The purposes of the study were to analyze nutritional status, psychosocial stimulation, and factors affecting the cognitive development of preschool-age children. This study was conducted in the Village of Babakan, Sub-District of Dramaga, Bogor Regency, West Java. This cross-sectionally designed study was conducted with mothers who had preschool children aged 3-5 years as respondents. Fifty-eight children were included. The distribution of mother's educational level was quite diverse, and the largest percentage (44.8%) had senior high school education. Approximately 78% of the family income per capita was classified into the non-poor category and 22.4% into the poor category. The average mother's nutritional knowledge score was $76.7{\pm}2.5$ (moderate category). Most of the preschool children (84.4%) had psychosocial stimulation scores in the moderate category (30-45). The nutritional status of children showed that 15.5% were underweight, 5.2% were wasted, 3.4% were severely wasted, and 19% of the children were in the short and very short categories (stunted). The stepwise regression results showed that psychosocial stimulation (P < 0.001), participation in early childhood education (P = 0.002) and nutritional status based on the height index for age (P = 0.028) had a positive and significant effect on cognitive development of the preschool children (adjusted $R^2$, 0.434; P = 0.028).

The Preference on Korean Traditional Motifs and It′s Relationship with Motif Images

  • Chang, Soo-Kyung;Kim, Jae-Sook
    • The International Journal of Costume Culture
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    • v.2 no.2
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    • pp.60-70
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    • 1999
  • The purposes of this study were to investigate preference and images of Korean traditional motifs, and to identify the relationship between them. The subjects consisted of 369 male and 356 female undergraduate students. The experimental materials used in this study were 48 stimuli and a questionnaire composed of 7-point semantic differential scales of 26 adjectives. Twelve motifs selected from 3 groups of Korean motifs were used as pattern design stimuli. Twelve repeated patterns were constructed from them to be applied on a CAD-simulated dress. The data were analyzed by ANOVA, Duncan's multiple range test, and regression. The major findings were as follows : 1. Category, composition type, and application object had a significant effect on the preference. Interpretation type has no significant effects on the preference independently, but it had interaction effects when combined with composition type, and category. Especially the composition type had a greater effect than the other variables on the preference. Cloud motif and its abstract and decorative type were found to be more related to the preference than the other category and interpretation type. On the basis of the analysis results, image charts and preference charts were developed. By combining information from the image chart and preference chart, motifs and images preferred by consumers may be selected and developed into new valuable designs. 2. The preference was affected mainly by 'quality'image followed by 'simplicity', 'interest', and 'modernity'image. The preference on pattern design was affected by 'quality', 'simplicity', 'interest', and 'interest', 'simplicity', and 'modernity'image in the order. The relationship between the preference and sensibility images has been represented by equations.

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The Effects of Gilgyunghaedok-tang on Antitumor and Antimetastatic Activity (길경해독탕이 항암 및 항전이 효과에 미치는 영향)

  • 왕중권;정희재;이형구;정승기
    • The Journal of Korean Medicine
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    • v.23 no.2
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    • pp.211-224
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    • 2002
  • Background and Objective : In order to investigate the effects of Gilgyunglwedok-tang (GRT) on antitumor activity and antimetastatic activity, studies were done experimentally. Materials and Methods : Experimental studies were perfonned for the cytotoxic effect on BALB/c mouse lung fibroblast cells, the proliferating effect of splenic lymphocyte, the expression of CD3e/CD4, CD3e/CD8, and B220 in peripheral blood mononuclear cells (PBMCs), the cytotoxic effect on A549, SK-OV-3, SK-MEL-2, MCF-7 cells, the inhibitory effect on the activity of DNA topoisomerase I, the T/C% in ICR mice bearing S-180, the inhibitory effect of Cell adhesive of A549 Cells and SK-OY-3 Cells to complex extracellular matrix, the inhibitory effect on lung colonies, the change of lung tissue, the antiangiogenic activity, and the effect on MMP-2 and MMP-9 gene expression in the RT1080 cell line. Results and Conclusion : The results were obtained as follows : 1. In the cytotoxic effect on BALB/C mouse lung fibroblast Cell, GHT didn't show the significant cytotoxic effect on BALB/C mouse lung fibroblast cell compared to the control group. 2. In thymidine uptake assay, GHT showed the significant proliferating effect of splenic lymphocyte in proportion to the concentration. 3. In the expression of CD3e/CD4, CD3e/CD8, and B220 in peripheral blood mononuclea cells (PBMCs) of mice, GRT had no significant change to the normal group in CD4. However, GRT showed an increase to the normal group in CD8 and GHT in the only $1\mu\textrm{g}/ml$ category showed an increase to the normal group in B220. 4. In the cytotoxic effect of GRT on A549, SK-OY-3, SK-MEL-2 and MCF-7 cells, there was no significant cytotoxic effect compared to the control group. 5. In the inhibitory effect on the activity of DNA topoisomerase I, GHT in the $10\mu\textrm{g}/ml$ category showed the inhibitory effect on the activity of DNA topoisomerase I in proportion to the concentration. 6. In the T/C% in ICRmice bearing S-180, GHTtreated group showed 123.7% of T/C% compared to the control group. 7. In the inhibitory effect of cell adhesive of A549 Cells and SK-OV-3 Cells to complex extracellular matrix, GRT in the only $100\mu\textrm{g}/ml$ category showed the significant inhibitory effect compared to the control group. 8. In the inhibitory effect on lung colonies, GHT showed the significant inhibitory effect on lung colonies compared to the control group. 9. In the change of lung tissue, GHT showed a significant decrease of lung cancer growth, interalveolar fibrosis and hyaline material compared to the control group. In the development of lymphocyte around lung cancer cells and lung parenchymal, GHT showed the significant inducement efficacy compared to the control group. 10. In CAM assay, the antiangiogenic activity of GHT showed 30%. 11. In the effect on MMP-2 and MMP-9 gene expression in the RT1080 cell line, GHT had no significant inhibitory effect on MMP-2 and MMP-9 gene expression compared to the control group. According to the above results, it could be suggested that GHT has an antitumor activity and antimetastatic activity.

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A Study on the Effect of Information Quality and Source Credibility on Product Arousal in Fresh Food Website (신선식품 유통 사이트에서 제품 정보품질과 정보원천 신뢰성이 제품환기에 미치는 영향)

  • In-Won Kang;Kyo-Won Jung
    • Korea Trade Review
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    • v.46 no.5
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    • pp.99-113
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    • 2021
  • This study aims to analyze the effect of product information quality and source credibility on product arousal in fresh food website. Despite fresh food websites are selling products with various feature, prior studies have focused on consumer behavior for fresh food website characteristics or specific products without considering the feature of the products. Consumers' attitudes, beliefs, and behaviors vary depending on the feature of the product. In other words, depending on the category of product, the decision making process that consumers purchase products can be differ. So, we classify products considering the feature of these products to examine the effect of information quality and source credibility on product arousal into experience goods and search goods. We surveyed 288 consumers having experience of purchase in fresh food website and verified the hypothesis through One-way ANOVA by classifying the information quality and the source credibility as high level and low level. As a result, there was a difference in product arousal according to the product information quality level and the source credibility level for each product category exposed to the fresh food website. In experience goods, source credibility have a more important effect on product arousal than product information quality, and in search goods, product information quality have a more important effect on product arousal than source credibility.

The effect of need of oral health management to oral health impact profile among elderly over 65 years (65세 이상 노인의 구강건강관리요구도가 구강건강영향지수(OHIP-14)에 미치는 영향)

  • Park, Jung-Ran;Kim, Hye-Jin
    • Journal of Korean society of Dental Hygiene
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    • v.11 no.6
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    • pp.961-971
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    • 2011
  • Objectives : The aim of the study was to identify the need of oral health education and prevention? for over 65 years elderly. Methods : his study was to identify the need of oral health management and oral health impact profile among elderly over 65 years. 200 elderly participated in the study, lived in KungBuk and KungNam areas, visited Senior welfare center, from 1st September to 30st December 2008. Results : 1. This majority of respondents are female(74.0%), 75-79 years(29.5%), none education(42.5%), living alone(45.5%), income from children(46.0%), and health insurance(65.5%). 2. In the need of oral health management category, the need of dental treatment are professional toothbrushing, gum treatment, treatment for dental caries, treatment for xerostomia. In the need of prevention and education, the majority participants are 'required'. In oral health impact profile category, the majority participants are 'feel no difficulty during speaking(59.0%)', and 'feel no difficulty during tasting(47.0%)'. In the category, the positive answers are more than negative answers. 3. According to general characteristic with the need of oral health management, famle, obviously income, high level of life are significantly different in the need of prevention and education category. Obviously income is significantly different in the need of dental treatment category. According to general characteristic with the oral health impact profile, getting older, high education are significantly different in disadvantage category. In the case of no spouse, anxiety, physical difficulty, mental difficulty and disadvantage are high score in oral health impact profile. In the case of living alone, pain, anxiety, and disadvantage are high score in oral health impact profile. In the case of no income, limitation of function, pain, anxiety, mental difficulty and disadvantage are high score in oral health impact profile. In the case of no health insurance, anxiety, physical difficulty mental difficulty and lack of sociality are high score in oral health impact profile. 4. The oral health impact profile are positive correlation with the need of dental treatment and the need of prevention education. The effect of oral health impact profile are significantly different with spouse, average of income, the need of prevention education. Conclusions : In Conclusion, the need of prevention education and dental treatment for individual oral health promotion are related with general life condition and life level. Also these are influence of quality of life relate with oral health. These findings are require of development of oral health services program and system from bottom to top.

The effect of prone pelvic blocking on hamstring muscle relaxation and sacral movement (엎드린 자세에서의 다리이음뼈 블록중재가 넙다리뒤근육 이완과 호흡시 엉치뼈 움직임에 미치는 영향)

  • Cha, Kyung-Su;Kim, Ka-Eun;Jung, Ki-Hun;Jung, Seung-Eun;Park, Soon-Kwon;Cho, Il-Young
    • Journal of Digital Convergence
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    • v.10 no.10
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    • pp.397-404
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    • 2012
  • The purpose of this study is to investigate the change of hamstring muscle relaxation and craniosacral reciprocal movement by using S. O. T. (sacrooccipital technique) categoryⅠ block-intervention process. 26 subjects with heel tension were randomly divided into two groups (EXP=13 and CON=13). This study carried out the category I block-intervention process on the experimental group and the false block-intervention process on the control group. Then, this study measured the sit-and-reach and sacral reciprocal movement of subjects before and after the intervention. The result values before and after the intervention were analyzed through ANCOVA by using SPSS PC Program (Ver. 20.0). In both investigations, the degree of hamstring muscle relaxation and the change of sacral reciprocal movement, there were statistically significant differences between the experimental group and the control group as [F(1, 23)=7.73, p<0.5] and [F(1, 23)=7.07, p<.05] respectively. According to the results of this study, it is expected that S. O. T category I bllock-intervention technique will have positive effect on both hamstring muscle relaxation and craniosacral reciprocal movement.