• Fisheries and Aquatic Sciences
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• v.26 no.5
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• pp.336-343
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• 2023

This study aimed to know the response of deep-sea squid Sthenoteuthis oualaniensis to the light colors of the artificial bait. This experiment used the commercial artificial flashlight baits commonly sold in the fishing shop. The bait has several different light color combinations. The light colors were modified into several light colors by inactivating certain colors and used as treatments. The study is expected to be able to find flashlight bait's most effective color for squid fishing. We applied red-green, green, blue, and commercial bait lights in this study. Each treatment has 3 replications. The effect was expressed as the amount of squid caught. Data were analyzed by one-way analysis of variance. Results showed a significant effect on the number of squid catches. There was significantly different squid catches among the treatments. It indicates that this artificial flashlight bait could be developed to maximize squid catches. This finding can be used for the local fishermen's income and the squid fisheries development.

• Child Health Nursing Research
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• v.29 no.3
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• pp.237-247
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• 2023

Purpose: The purpose of this study was to identify factors affecting parents' intentions to have their children aged 5-11 years vaccinated against coronavirus disease 2019 (COVID-19). Methods: The participants of the study were 298 parents with children aged 5-11 years in South Korea. Data collection took place from October 20 to October 26, 2022 and used an online survey (Google Forms). Data were analyzed using descriptive statistics, the t test, analysis of variance, the Scheffétest, Pearson correlation coefficients, and hierarchical regression in IBM SPSS version 26.0. Results: The factors influencing participants' vaccination intentions for their children aged 5-11 years were cognitive behavioral control (β=.40, p<.001), attitudes (β=.37, p<.001), subjective norms (β=.20, p<.001), and awareness of whether their child could receive the COVID-19 vaccine (β=.07, p=.016). The explanatory power of the regression equation was 89%. Conclusion: Parents' intentions to vaccinate their children against COVID-19 are influenced by their attitudes, subjective norms, and perceived behavioral control toward vaccines. Since parents are concerned about vaccine side effects, it is important to establish a trusted line of communication to keep them informed about vaccinations.

• Computers and Concrete
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• v.32 no.2
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• pp.185-206
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• 2023

This article aimed to explore the optimization of mineral admixtures and retarding admixture for high-performance concrete. In essence, fresh concrete can be regarded as a mixture in which both coarse and fine aggregates are suspended in a cement-based matrix paste. Based on this view, the test procedure was divided into three progressive stages of binder paste, mortar, and concrete to explore their rheological behavior and mechanical properties respectively. At each stage, there were four experimental control factors, and each factor had three levels. In order to reduce the workload of the experiment, the Taguchi method with an L9(3⁴) orthogonal array and four controllable three-level factors was adopted. The test results show that the use of the Taguchi method effectively optimized the composition of high-performance concrete. The slump of the prepared concrete was above 18 cm, and the slump flow was above 50 cm, indicating that it had good workability. On the other hand, the 28-day compressive strength of the hardened concretes was between 31.3-59.8 MPa. Furthermore, the analysis of variance (ANOVA) results showed that the most significant factor affecting the initial setting time of the fresh concretes was the retarder dosage, and its contribution percentage was 62.66%. On the other hand, the ANOVA results show that the most significant factor affecting the 28-day compressive strength of the hardened concretes was the water to binder ratio, and its contribution percentage was 79.05%.

• The Journal of Information Systems
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• v.33 no.2
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• pp.219-236
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• 2024

Purpose The purpose of this study is to investigate the effect of micro and macro-influencers on consumer purchase intentions, specifically focusing on the role of the product's origin (domestic or foreign). The study will specifically analyze the markets of South Korea and Kyrgyzstan to understand how various types of influencers impact consumer behavior within these unique cultural and economic settings. Design/methodology/approach This study evaluates hypotheses using the factorial design method among social media users in South Korea and Kyrgyzstan. The experiments involve scenarios with eight different groups. The analytical research methodology used is analysis of variance (ANOVA). Findings The study findings confirmed that micro- and macro-influencers have varying effects on consumer behavior, which supports previous research. The inclusion of the product origin factor resulted in more accurate data. In both the South Korean and Kyrgyzstan markets, the findings indicated that micro- and macro-influencers have limited success in promoting local products. However, when it comes to promoting foreign products, there are notable differences in effectiveness between micro- and macro-influencers, with macro-influencers being more effective.

• International conference on construction engineering and project management
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• 2024.07a
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• pp.231-237
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• 2024

The global shift towards sustainable energy practices underscores the importance of residential photovoltaic (PV) adoption, a trend that has been gaining more attention in Hong Kong. Despite this, existing research in this area lacks quantitative analysis, with a particular deficiency in statistically robust surveys across diverse residential sectors in Hong Kong and in comparative studies between PV installers and non-PV installers. Addressing these gaps, this study employed a comprehensive questionnaire survey to collect data from a representative sample of both PV installers and non-PV installers regarding their housing types and homeownerships, followed by chi-square tests of independence to explore the demographic distinctions influencing residential PV adoption. The findings highlight significant variance in adoption rates between homeowners and tenants, with a noticeable inclination for PV installation among owners of independent houses. In contrast, co-tenants in residential flats demonstrated a lower propensity for PV adoption. These insights provide a crucial understanding of the factors that affect PV system uptake and could inform the formulation of targeted policies to boost renewable energy integration in urban residential settings.

• Journal of the Korean Society of Clothing and Textiles
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• v.20 no.6
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• pp.1096-1106
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• 1996

This study was to identify the dimensions of consumers' attitudes toward imported casual brands. Another objectives were to examine consumers' attitude according to the preference group, and to ascertain the imported casual brand images. The 55 Likert type questions were selected through the results of self-questionnaire analyses. 520 females aged between 20 to 29 in Pusan responded to the second questionnaire of consumers' attitudes and brand images toward imported casual brands. The results were as follows: 1. For final factor analysis, 56 selected from 85 questions were subjected to the principal component analyses with orthogonal rotation after extraction of 5 major factors. 2. Five dimensions are brand's uniqueness and good quality, high prestige, incongruity with native emotion and ethnocentrism, conspicuous consumption, and reasonable purchasing advantages. These factors explained 45.0% of total variance. 3. Five dimensions were different according to the degree of preference. For preference group, they purchased the imported casual brands by uniqueness, good quality and reasonable purchasing advantages. For non-preference group, they disliked the imported brands by incongruity with native emotion, ethnocentrism, and conspicuous consumption. 4. Preference group had 5.47, whereas non-preference group had 1.76 pieces of imported casual brands for this 2 years. This result suggests that to develop the domestic brands with international uniqueness, good quality, and high prestige, and to improve according to preference group are necessary.

• Journal of the Korean Society of Clothing and Textiles
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• v.17 no.2
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• pp.315-327
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• 1993

The purpose of this study was to clarify the model of fashion change related to the cyclical variations suggested by Kroeber and Young and the selected social changes factors since Kapokyungchang(1894) in Korea. The sample was drawn from illustrations and photos in newspapers and magazines such as Chosunilbo, Dongailbo, and Yeowon. Documentary research and a content analysis have been done. The results were as follows : 1. Cyclical variations in dress were apparent for skirt length and silhouette. However, Kroeber's model and Young's model that regulary recurring cycles exist did not fit the data for 1970 to 1990 in Korea. For skirt length, the cycles appeared to be approximately five to six years for 1970 to 1990. 2. Social and institutional factors tended to account for more the variance in dress dimensions than political factors.

• Computers and Concrete
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• v.17 no.3
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• pp.323-336
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• 2016

Although the self-compacting concrete (SCC) offers several practical and economic benefits and quality improvement in concrete constructions, in comparison with conventionally vibrated concretes confronts with autogenously chemical and drying shrinkage which causes the formation of different cracks and creates different problems in concrete structures. Using different fibers in the mix design and implementation of fibrous concrete, the problem can be solved by connecting cracks and micro cracks together and postponing the propagation of them. In this study an experimental investigation using response surface methodology (RSM) based on full factorial design has been undertaken in order to model and evaluate the polypropylene fiber effect on the fibrous self-compacting concrete and curing time, fiber percentage and fiber amount have been considered as input variables. Compressive strength has been measured and calculated as the output response to achieve a mathematical relationship between input variables. To evaluate the proposed model analysis of variance at a confidence level of 95% has been applied and finally optimum compressive strength predicted. After analyzing the data, it was found that the presented mathematical model is in very good agreement with experimental results. The overall results of the experiments confirm the validity of the proposed model and this model can be used to predict the compressive strength of fibrous self-compacting concrete.

• Journal of Korean Academy of Nursing
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• v.42 no.1
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• pp.105-115
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• 2012

Purpose: This study was done to propose a structural model to explain and predict psychosocial adjustment in patients with early breast cancer and to test the model. The model was based on the Stress-Coping Model of Lazarus and Folkman (1984). Methods: Data were collected from February 18 to March 18, 2009. For data analysis, 198 data sets were analyzed using SPSS/WIN12 and AMOS 7.0 version. Results: Social support, uncertainty, symptom experience, and coping had statistically significant direct, indirect and total effects on psychosocial adjustment, and optimism had significant indirect and total effects on psychosocial adjustment. These variables explained 57% of total variance of the psychosocial adjustment in patients with early breast cancer. Conclusion: The results of the study indicate a need to enhance psychosocial adjustment of patients with early breast cancer by providing detailed structured information and various symptom alleviation programs to reduce perceived stresses such as uncertainty and symptom experience. They also suggest the need to establish support systems through participation of medical personnel and families in such programs, and to apply interventions strengthening coping methods to give the patients positive and optimistic beliefs.

• The Korean Journal of Rehabilitation Nursing
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• v.15 no.2
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• pp.109-116
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• 2012

Purpose: This study was conducted to investigate influencing factors on recovery among alcoholics. Methods: The participants were 123 hospitalized patients with alcohol use disorder in two hospitals in Gyeonggi province. The data were collected from May 16 to June 4, 2012 using self-report questionnaires including Hanil Alcohol Insight Scale, Alcohol Abstinence Self-Efficacy Scale, and Recovery Scale. The data were analyzed using the SPSS/Win 18.0 program with descriptive statistics, Pearson's correlation coefficient and regression analysis. Results: Recovery is positively related to abstinence self-efficacy and duration of abstinence. Recovery differed by insight type, gender, and occupation. Insight, duration of abstinence, gender, and occupation accounted for 59.1% of the variance in recovery of the alcoholics. Conclusion: The influencing factors on recovery among alcoholics were insight, duration of abstinence, gender, and occupation. Programs focusing on insight, abstinence self-efficacy, and abstinence maintenance should be developed and provided. When developing the programs, the environmental context in which the alcoholics work should be considered.