• Journal of the Korean Chemical Society
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• v.63 no.1
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• pp.56-65
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• 2019

This study investigated the perceptions of the relationship among the three acid-base models of chemistry teachers. In addition, we examined how the perception of the relationship between models affected on the interpretation of concepts in each model. To investigate teachers' perceptions and interpretations, a questionnaire and interviews were conducted for 24 chemistry teachers. As results, most of the chemistry teachers recognized the three models as cumulative extension relationships. The perceptions were related to the contents of textbooks. The perception of the relationship of these models influenced on interpretations of the models' acid-base concept. In this study, we suggested that science teachers need to be aware of diverse models' roles.

• Nutrition Research and Practice
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• v.15 no.3
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• pp.346-354
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• 2021

BACKGROUND/OBJECTIVES: While the use of food additives in food processing has become a common practice worldwide, consumers' worry about potential hazards has not diminished. The purpose of this study was to identify trends in South Korean parents' perceptions about food additives by analyzing the results of surveys conducted from 2014 to 2018. SUBJECTS/METHODS: We conducted an off-line survey in Korea annually between 2014 and 2018 on perceptions about food additives. The numbers of survey respondents in each year from 2014 to 2018 were 381, 426, 301, 519, and 369, respectively. Our consumer respondents were parents of elementary-school-aged children. RESULTS: The ratios of respondents perceiving "food safety" as the most important factor in purchasing processed foods and "food additives" as the biggest threat to food safety have decreased over the years. However, most consumers still have negative perceptions of food additives. Additionally, among consumers lower confidence in or trust of the Korean government continued throughout the study period and appeared to be the main problem that needs to be overcome. CONCLUSIONS: This study found that Korean parents are still troubled by food additives. Consumers' confidence in the government needs to be increased through public communications. More multifaceted educational programs communicating scientific knowledge of food additives are needed in order to correct consumers' misperceptions.

• Journal of Hospice and Palliative Care
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• v.23 no.4
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• pp.172-182
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• 2020

Purpose: This study aimed to identify the relationships among attitudes towards death, perceptions of hospice care, and hospice care needs as perceived by family members of patients in the intensive care unit (ICU). Methods: This study used a descriptive correlational method. A structured questionnaire was used to collect data from 114 participating families in the ICU at Dong-A University Hospital, from October 10 to November 1, 2019. The data were analyzed in terms of frequency, percentage, and mean and standard deviation. The t-test, one-way analysis of variance, and Pearson correlation coefficients were also conducted. Results: Perceptions of hospice care showed significant differences according to age (F=3.06, P=0.031) and marital status (t=3.55, P=0.001). However, no significant differences in attitudes towards death or hospice care needs were found. A significant positive correlation was found between perceptions of hospice care and hospice care needs (r=0.49, P<0.001). Conclusion: In order for families to recognize the need for hospice care and to receive high-quality palliative care at the appropriate time, it is necessary to increase public awareness of hospice care through various educational and awareness-raising efforts, thereby providing opportunities for families of terminally ill patients to request hospice care.

• International Journal of Computer Science & Network Security
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• v.21 no.11
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• pp.31-42
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• 2021

Several studies have been conducted on market orientation over the last three decades. However, the majority of previous research focused exclusively on an internal vision that conceives the market orientation from an organizational perspective, considering the market orientation as a strictly perceived culture or behavior by company's staff (managers and employees) .This study aims to emphasize the importance of analyzing the market orientation from a dual perspective by investigating simultaneously the perceptions of customers and those of managers. It examines the perceptual gap or perceptual congruence of market orientation between customers and managers. A survey is conducted with Tunisian bank managers and B to B customers to measure their market orientation perception. The results should reveal level of manager's market orientation in Tunisian banks compared to customers' perceptions. The perception gaps of market orientation between managers and customers named congruence is highlighted and categorized. This study provides some contributions to fill the gap emerging from the one-sidedness of market orientation evaluation and gives a dyadic vision of market orientation that helps managers in their continuous learning about markets and sensing customers' needs and expectations. Market orientation level between the two groups is evaluated to give some managerial recommendations.

• Journal of the Korean Society of Clothing and Textiles
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• v.47 no.6
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• pp.1012-1026
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• 2023

This study used the Q-methodology to identify and categorize the types of subjective perceptions of Korean hanbok among foreigners currently living in Korea, and to explore the characteristics of each type. We used the QUANL PC program to analyze the data. We categorized foreigners' perceptions of hanbok into three types. The first type comprised the "hanbok experience novice tradition affirming" individuals who thought hanbok was beautiful, affirming Korean culture and traditional clothing. They encountered hanbok for the first time upon arriving in Korea. The second type was the "design preference positive change". These individuals thought hanbok's design was beautiful and belived Korea's image improved because of hanbok. The third type was the "change-seeking tradition negative". This group believed that hanbok was not traditional Korean clothing and required modernizing. The first category comprised mostly individuals from Nepal, the second category was Myanmar, and the third category was China. Thus, different nationalities have different perceptions of hanbok. Future research should explore how foreigners from diverse nationalities perceive hanbok and coduct a comparative analysis based on nationality.

• Korean Institute of Interior Design Journal
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• v.21 no.1
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• pp.68-77
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• 2012

Appreciating the aspect of modem architecture requires not only the comprehension of the nature of design and architects' ways of thinking and expression but also observers' views on buildings and their perceptive/cognitive stages. This calls for an in-depth study on the "system of phenomenological perceptions" that works as a new architectural experience system. The system of phenomenological perceptions makes it possible to specify the individual process of understanding architecture, that is, hands-on experiences, participations, feelings, perceptions, and cognition. The value of user experience and cognition has been emphasized by philosophical and aesthetical concepts as well. Therefore, in order to better appreciate the modern architecture, this study suggests theoretical consideration to "orientation and event" that are crucial elements in understanding a phenomenological view and materializing actual space formation. This offers the cognitive system with which we analyze modem architecture and comprehensive expressional methods. In other words, this study contemplates the system of phenomenological perceptions from an existential spatial perspective by structurizing the system of the orientation and the event in order to segmentalize users' current locations, potential directions, the relations with spaces, continual vie'wpoints as well as buildings' functions and interior and exterior division. The system of phenomenological perceptions helps understand and systemize modern architecture through a system based on relations between sensation, perception, cognition, sensitivity, and rationality. This creates a new cognitive system employing the concept of the orientation and the event, which is different from a normal cognitive system basing on the sense of vision. When observers appreciate space, they tend to relate the space to a certain event and to remember their experiences in it. During the process, they draw borders of the space in which the event takes place and give shape to their experiences including actions, movements, cognition and sensation. The process leads to the formation of "placeness," and here, the concept of the orientation comes in as the location and the center of the placeness. This study proves that a determined orientation coupled with individual experience and events settles the place ness; detailed elements in the cognitive system have close relations with one another; the orientation, actions, events, and places are the factors that materialize observers' architectural experience.

• Korean Journal of Child Studies
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• v.33 no.4
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• pp.69-89
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• 2012

The purpose of this study was to examine the differences in maternal perceptions of mothers in regards to the conditions of happiness across the life-cycles of their children. The participants consisted of a total of 961 women who were the mothers of preschool children, school aged children, and adolescents. The mothers completed a questionnaire on the perceptions of the conditions of happiness which consisted of a total of 56 items. The results of this study revealed that mothers in their 20's and 30's, with high levels of education, and on high incomes were more likely to have high expectations regarding most of the conditions of happiness compared to mothers in their 40's and 50's, with lower levels of education, and on low incomes. In addition, the results further revealed that mothers perceived that 'children grow up well and healthy' as being the most important factor in their happiness regardless of the life cycles of their children. In particular, mothers with younger children tended to give greater priority to a close mother-child relationship in their happiness. However, when mothers' demographic variables were controlled, there were no differences in maternal perceptions of the conditions of happiness across the life-cycles of their children. The implications of parent education and the directions of following research were also discussed.

• Journal of The Korean Association For Science Education
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• v.31 no.8
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• pp.1110-1120
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• 2011

The purpose of this study was to investigate teachers' perceptions of gender differences in students' mathematics and science learning ability. The sample included 289 elementary and secondary school gifted teachers. The teachers filled out the survey, asking their perceptions of gender differences in mathematics and science learning ability, as well as of the reasons of the differences. The results were as follows: 1) 65% of the teachers responded that gender differences existed in students' mathematics and science learning ability, 2) 63% of the teachers perceived that the differences began around higher elementary or middle school ages, 3) 57% of the teachers thought that gender differences existed in the high-achieving student group. Teachers perceived the reasons of differences were 1) differences in inborn ability, 2) the different expectation, and 3) the different ways of parental cares. Since teachers' perceptions of students' ability would impact teachers' attitudes on students, implications and suggestions were included in this article to provide teachers insights that promote students' better learning.

• Journal of Korean Elementary Science Education
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• v.37 no.3
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• pp.267-284
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• 2018

This study analyzed the types of scientific humors made by scientifically-gifted elementary school students and their perceptions of making scientific humor. For this, 77 students from $4^{th}$ to $6^{th}$ graders of gifted science education center in Seoul National University of Education were selected. Scientific humors made by the students were analyzed according to the number and types. Their perceptions of making scientific humor were also analyzed through a questionnaire and group interviews. The analysis of the results revealed that most of scientifically-gifted students made more than 2 scientific humors, and the number of scientific humor for each students varied from 0 to 11. The most types they made were the descriptive type and the pun using pronunciation type, but they made various types without any special type to be biased. And They made more the dialogue type than the narrative type, especially the riddle type. They used scientific knowledge that preceded the knowledge of science curriculum in their grade level over two or more years. The scientific knowledge of chemistry was used more than physics, biology, earth science and combination field. The name utilization type was more than the characteristic utilization type and the principle utilization type. Scientific humors in the everyday situation were more than humors in artificial situation. The students had various positive perceptions in making scientific humor such as increase of scientific knowledge, increase of various thinking abilities, deep understanding of science concept and principle, increase of interest and motivation about science and science learning, and increase on sense of humor. They had also some negative perceptions related to difficulties in the process of making scientific humor, lack of fun, and lack of time in the class.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.12 s.159
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• pp.1714-1722
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• 2006

Women's perceptions of body size and body image are important topics for researchers in multiple fields. The terms body image or body self refer to perceptions and beliefs that an individual holds about his or her body (Rosenbaum, 1979; Schilder, 1953). Few studies have focused on body image perceptions as they relate to parent-child pairs. This study investigated the perceptions that mothers and daughters each had of their own body, the other's body, and their ideals for the same. The purposive sample used in this study consisted of 41 mother-daughter pairs. The sampled focus was girls between ages 9 and 14, and their mothers. Significant differences between how mothers saw their daughters and how daughters saw themselves emerged only for the plus size group. The clearest significant difference between mothers and daughters was in their dissatisfaction with themselves. The mothers were more dissatisfied. flus-size girls were significantly more dissatisfied with their mothers' bodies than normal size girls were with their mothers' bodies. The mothers of plus size girls were significantly more dissatisfied with their daughters' bodies than were the mothers of normal size daughters.