• Archives of Pharmacal Research
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• v.4 no.1
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• pp.33-41
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• 1981

The prepared dextran sulfates were characterized by measuring the reduced viscosisty at five different concentrations to obtain an intrinsic viscosity in both phosphate and tris buffers, pH 7.4, ionic strength of 0.1 Dextran sulfates having 0.81, 1.06 sulfate groups per hexose unit have reduced viscosity value below 40 ml/g whereas dextran sulfates having 1.21, 1.43, 1.69 sulfate groups per hexose unit have reduced viscosity value over 40 ml/g. Dextran sulfate having 1.21 sulfate groups per hexose unit had highest value of reduced viscosity. The reduced viscosity of dextran sulfate in tris buffer was always higher than that in phosphate buffer regardless of the sulfate content of dextran sulfate. The influence of the sulfation of the dextran sulfate. The influence of the sulfation of the dextran sulfate molecule on the dextran sulfate-LDL interaction was studied with three different dextran sulfate molecules. Dextran sulfate molecules having more than one sulfate group per hexose unit. The dextran sulfate having 0.81 sulfate groups per hexose unit showed considerably different precipitation curves in phosphate and tris buffers. This peculiar behavior of dextran sulfate having 0.81 sulfate groups per hexose unit in the two buffer systems was not noticed with dextran sulfate having more than one noticed with dextran sulfate having more than one sulfate group per hexose unit.

• Journal of the Korean Society of Clothing and Textiles
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• v.22 no.8
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• pp.1099-1110
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• 1998

The perceived quality is a concept considered from the consumer's perspective. So it is differ from the objective determination of product quality. Thus the consumer perception of quality is a subjective judgement of an individual and an overall feeling on the characteristics which includes the product's reliability, performance and so on. In terms of product perception, consumers utilize the product cues in evaluating the product's quality before the purchase and the cues reflecting the quality can be classifisied into intrinsic and extrinsic ones. When the quality perception is limited to the purchase situation, purchase decision dependent on surrogate indicators such as price, are inclined to increase due to the lack of information. Therefore in this study the perceived quality of apparel is controled to the purchase situation in order to examine the consumer's reaction to the price cues and for the convenience of the exploratory investigation. As a result of the empirical study, consumers show differences in quality and value perceptions to the product with the same price depending on the perception whether the price is high or low. The apparel quality evaluation process goes through the steps of "product attributes - perceived quality - perceived value - purchase intention".

• Fashion & Textile Research Journal
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• v.10 no.2
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• pp.191-197
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• 2008

Despite increasing consumption of luxury brands, research about consumption of luxury brands is limited.The purpose of this article is to gain a deeper understanding of important role of intrinsic consumption motivations in consumption of luxury brands. This article investigated the relationships among consumption motivations, conspicuous consumption belief, Product quality belief, and attitude toward consumption of luxury brands using structural equation modeling. The results reveal that, other-oriented consumers were likely to have strong conspicuous consumption belief,whereas consumers with strong self-oriented value tended to place more importance on product quality attribute of luxury brands. Moreover, Consumers who take into account extended-self tended to have strong conspicuous consumption belief while consumer who put more importance on experientialism were more likely to have greater importance on product quality atthbute. And both conspicuous consumption belief and product quality belief influenced positive attitude formation toward luxury brands.

• Hwankyungkyoyuk
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• v.12 no.1
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• pp.276-293
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• 1999

An environmentally hot issue has arisen from the plan of Young-Wall Dam Construction at Tong river in Korea lately. The point at issue is which value is bigger between the water conservation for human use in future and the ecosystem protection for the intrinsic value of nature including animals and plants there. The purpose of this study is in the qualitative understanding of college students' critical thinking ability and opinion and the environmental values of them through the analysis of their writings. Various environmental values written in the 7th revised national curriculum of Korea are used as a criteria to investigate students' environmental values in their written opinions. Various environmental values are shown up to be handled such as the anthropocentrism, ecocentrism, pro-technology etc. Students of Dept. of Environment Teaching in the Kongju National University are the subject of this study. It shows that they have a deep understanding of the Young-Wall Dam issue and assert their opinions objectively and critically. Most of them(89.5%, n=17) are against the constructional plan of the Young-Wall Dam. Students who are for the plan are proved to have pro-technology value only and the others who are against to have various values including deer ecology.

• Korean Journal of Materials Research
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• v.31 no.8
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• pp.445-449
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• 2021

Zintl compound Mg₃Sb₂ is a promising candidate for efficient thermoelectric material due to its small band gap energy and characteristic electron-crystal phonon-glass behavior. Furthermore, this compound enables fine tuning of carrier concentration via chemical doping for optimizing thermoelectric performance. In this study, nominal compositions of Mg_3.8Sb_2-xTe_x (0 ≤ x ≤ 0.03) are synthesized through controlled melting and subsequent vacuum hot pressing method. X-ray diffraction (XRD) and scanning electron microscopy (SEM) are carried out to investigate phase development and surface morphology during the process. It should be noted that 16 at. % of excessive Mg must be added to the system to compensate for the loss of Mg during melting process. Herein, thermoelectric properties such as Seebeck coefficient, electrical conductivity, and thermal conductivity are evaluated from low to high temperature regimes. The results show that Te substitution at Sb sites effectively tunes the majority carriers from holes to electrons, resulting in a transition from p to n-type. At 873 K, a peak ZT value of 0.27 is found for the specimen Mg_3.8Sb_1.99Te_0.01, indicating an improved ZT value over the intrinsic value.

• Journal of Distribution Science
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• v.20 no.2
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• pp.1-9
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• 2022

Purpose: The online distribution channel has attracted the attention of retailers by potential impact on consumers' purchase intention. The objectives of this study are to provide an insight into how to encourage consumers' impulse buying behavior on commercial website as well as attempts to reveal factors that influence consumers' impulsive buying behavior in the online shopping environment. Research design, data and methodology: The research framework is based on the stimulus-organism-response (S-O-R) framework. The Meta-analysis method carried out the research, gathering data from 37 published studies. Results: The research findings suggest that intrinsic motivations such as perceived ease of use, perceived enjoyment, and online flow experience play a significant role in boosting consumers' hedonic value when buying and online. In addition, these findings help online retailers use appropriate marketing stimuli such as offering pricing incentives, promotion tactics, and improved communication effectiveness. Also, obtaining a better grasp of how to build a website to improve the consumer experience generally helps consumers feel the urge to buy impulsively and act without hesitation. Conclusions: This research confirms a direct positive relationship between marketing stimuli and hedonic shopping value, which may support an applied theoretical framework for future research and provide managerial implications for retailers in online distribution channels.

• Journal of Korea Trade
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• v.23 no.7
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• pp.45-63
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• 2019

Purpose - This study aims to examine the factors that affect consumers' intention to use a global business-to-consumer sharing platform. Design/methodology - The questionnaire collected 300 copies from June 25 to July 11, 2019, of which 281 were used for statistical processing. The structural equation model (SEM) was used to test hypothesis in this research. Findings - The results showed that information innovation, personalization, and personal innovation influenced perceived usefulness, and social connectivity did not affect perceived usefulness. And perceived usefulness greatly influenced the intention to use. Research limitations/implications - The limitations of the study are that most of the survey respondents were in their twenties and could not grasp the perception of sharing economy services for various age groups. This paper derived implications that sharing platform promotes sharing and cooperation, which are the basic principles of international trade, to increase the intrinsic value of resources by cyclically using and utilizing limited resources around the world. Originality/value - It aims to contribute to the growth of consumer value-related industries and the welfare of society by providing implications from the point of view of sharing platform services.

• Hwankyungkyoyuk
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• v.13 no.2
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• pp.63-73
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• 2000

The purpose of this study are two-fold; 1) to identify the differences in the view of environmental value between 6-years-olds and 12-years-old, 2) to identify the differences in the attitude towards animals and plants between male-and female students. To accomplish the purposes of this study, two researchers deeply interviewed ten 6-years-old and 12-years-old boys and girls, respectively. First, the interviewees are asked to rank six constituents in nature, human-being, tiger, ant, gingko tree, weed, and stone, from their views of environmental value. Then, the interviewees were asked to talk about their various interaction with animals and plants. The results of this study are as follows; 1) In evaluating the value of nature constituents, 12-years-olds tended to be affected by scientific knowledge. On the other hand, 6-years-olds tended to evaluate the value of nature constituents by their emotional feeling; 2) From the perspectives of environmental ethics, 12-years-olds showed attitudes in anthropocentric or holistic ethics. On the other hand, 6-years-olds showed attitudes in nonanthropocentric ethics; 3) In evaluating the value of nature constituents, 12-year-olds tended to consider the constituent′s instrumental values and 6-years-olds tended to consider their intrinsic values; 4) From the perspectives of "ethics of care", females, especially 12-years females tended to take care of plants. The results propose more emphasis of environmental "sensuous" in school environmental education. And male- and female students should be expected fairly in their environmental attitudes, especially in taking care of natural creatures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.107-114
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• 2019

The objective of this study was to understand factors of occupational ethics affecting occupational value and educational belief of preservice childcare teachers. In order to achieve this objective, a questionnaire survey was conducted targeting a total of 270 preservice childcare teachers in A city. Study results found that preservice childcare teachers highly perceived the ethics in young children and family out of the occupational ethics, the intrinsic value out of the occupational value, and the maturism and interactionism out of the educational belief. Second, the occupational ethics, occupational value, and educational belief of preservice childcare teachers showed statistically significant correlations. Third, the occupational ethics of preservice childcare teachers had positive effects on the occupational value and educational beliefs. Based on these results, it is necessary to conduct diverse research studies for the formation of clear and appropriate occupational values and positive educational beliefs, so that childcare providers could perceive the importance of occupational ethics and provide high-quality childcare services.

• The Mathematical Education
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• v.60 no.3
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• pp.341-362
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• 2021

The purpose of this study is to explore the qualitative characteristics of pre-service teachers' motivation while they are participating in group activities for developing mathematical essay assessment problem and revising it. For this purpose, we analyzed individual factors about group learning activities as well as contextual factors about practical competency (in developing and revising mathematical essay assessment problem through collecting data of student responses to the problem). As results of data analyses, autonomy, among individual factors regarding group learning activities, was one of the main characteristics in attainment value, utility value, and intrinsic value, whereas task, authority, and grouping, among contextual factors regarding practical competency, appeared to have a positive impact on task value. These results suggest how to think of specific ideas and articulate them in designing a curriculum to develop student-evaluation expertise for pre-service teachers.