• Title/Summary/Keyword: qualitative/quantitative analysis

Search Result 1,943, Processing Time 0.035 seconds

Characterization of Isoflavones from Seed of Selected Soybean (Glycine max L.) Resources Using High-Resolution Mass Spectrometry (고해상도 질량 분석을 이용한 대두(Glycine max L.) 우수자원 종자의 이소플라본 특성 평가)

  • Lee, So-Jeong;Kim, Heon-Woong;Lee, Suji;Na, Hyemin;Kwon, Ryeong Ha;Kim, Ju Hyung;Yoon, Hyemyeong;Choi, Yu-Mi;Wee, Chi-Do;Yoo, Seon Mi;Lee, Sang Hoon
    • The Korean Journal of Food And Nutrition
    • /
    • v.33 no.6
    • /
    • pp.655-665
    • /
    • 2020
  • In this study, chemical information on a total of 20 individual compounds was constructed to identify isoflavones from the previous reports related with used parts(seeds, leaves, stems, pods) and products of soybean(Glycine max L.). Through constructed library and UPLC-DAD-QToF/MS analysis, a total of 19 individual isoflavones including aglycones, glucosides, acetylglucosides and malonylglucosides as major compounds was identified and quantified from 14 selected soybean seeds. Among them, genistein 7-O-(2"-O-apiosyl)glucoside and genistein 7-O-(6"-O-apiosyl)glucoside(ambocin) were identified tentatively as novel compounds in soybean seeds. Besides, among malonylglucosides, glycitein 4'-O-(6"-O-malonyl)glucoside was estimated for the first time. Total isoflavone contents were distributed from 240.21 to 445.21(mg/100 g, dry matter) and 7-O-6"-O-malonylglucosides were composed of 77.8% on total isoflavone as well as genistein derivatives were confirmed as major class. It was considered importantly that the development of isoflavone-rich varieties was necessary to strengthen their effects such as anti-inflammation, anti-cancer and menopause mitigation. The qualitative and quantitative data presented precisely in this study could be help to select and breed isoflavone-rich varieties. Furthermore, their basic isoflavone profile is expected to be applied to estimate the change of isoflavone conjugates on bioavailability after soy food supplements.

The Effect of Entrepreneurship on Life Satisfaction: Focusing on the Mediating Effect of Self-Determination and Self-Efficacy (기업가정신이 삶의 만족도에 미치는 영향: 자기결정성과 자기효능감의 매개효과중심으로)

  • Hong, Hye Young;Nam, Jung Mi
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
    • /
    • v.16 no.3
    • /
    • pp.59-72
    • /
    • 2021
  • Research in which an individual's entrepreneurial spirit contributes to the country's economic development through revitalization of entrepreneurship is being actively conducted, but studies related to individual satisfaction or life satisfaction are still insufficient. This study aims to clarify the influence of young adults' entrepreneurial spirit on their life satisfaction and at the same time verify the mediating effect of self-efficacy and self-determination. In addition, an empirical analysis was conducted on 511 young people to reveal the effectiveness of participation in government start-up support projects. The research results are as follows. First, the entrepreneurial spirit had a positive effect on the life satisfaction of young people. Second, self-determination and self-efficacy played a role in mediating the relationship between entrepreneurship and life satisfaction. Finally, participation in start-up support projects did not show a statistically significant moderating effect. This study is expected to provide a clue that life satisfaction can act as a major variable in the impact of entrepreneurship on entrepreneurship. It also implies that the performance of the government start-up support project should be considered not only about the quantitative performance such as sales and employment effect, but also the qualitative performance such as personal life satisfaction.

Analysis of High School Students' Polar Literacy and Its Implications for Polar Education (고등학생들의 극지 소양 평가 결과 분석 및 극지 교육에의 시사점)

  • Chung, Sueim;Choi, Haneul;Kim, Minjee;Shin, Donghee
    • Journal of the Korean earth science society
    • /
    • v.43 no.3
    • /
    • pp.446-463
    • /
    • 2022
  • This study suggests the need for polar literacy education as an effective conceptual system to explain climate change in terms of science education in line with the common effort of humankind to respond to global environmental changes. To this end, we investigated the status of polar literacy in high school students through quantitative tests and qualitative interviews and discussed the resulting implications. A total of 329 high school sophomore students from two high schools participated in a test consisting of 25 true and false questions developed by referring to the Polar Literacy Principles, while 13 students agreed to be interviewed. The results showed that a somewhat insufficient understanding and conceptual gaps appeared regarding several areas of the Polar Literacy Principles. Knowledge of the geographic features of the polar regions was weak, and little was known about the components and key characteristics of the cryosphere. The lack of understanding of these concepts results in the inability of students to link the operational mechanisms of polar and global climate change sufficiently. While accepting unsatisfactory concepts in the school curriculum without criticism from outside media, students perceived the mechanism of climate change as somewhat monotonous or distorted. Moreover, linguistic information, analogies, and visual observation were used as cognitive strategies to compensate for the ambiguous understanding of polar and climate change. Based on the abovementioned results, we argue that polar literacy education should be introduced as a new knowledge system that can be used to aid a systematic and comprehensive understanding of climate change within the school science curriculum. Additionally, we suggest the following implications: review the consistency of knowledge related to polar literacy in other subjects, provide critical standards for out-of-school media information related to climate change, examine students' misconceptions, and identify improved thinking strategies.

Exploring the Types of Elementary Students' Scientific Creativity According to the Structural Relationship between Creative Process and Product (창의 과정과 산물의 구조적 관계에 따른 초등학생의 과학 창의성 유형 탐색)

  • Kim, Minju;Lim, Chaeseong
    • Journal of The Korean Association For Science Education
    • /
    • v.42 no.1
    • /
    • pp.33-49
    • /
    • 2022
  • This study aims to explore, using both quantitative and qualitative data analyzing the structural relationship between creative process and product, the types of elementary students' scientific creativity. For this, 105 fifth-graders responded to a scientific creativity test that assesses creative process and product, and four students who scored the highest were interviewed. In the interview, they were asked about the cognitive process they used in generating the creative product. Then, correlation analysis and structural equation modeling were used, along with the interview data, to type the students. The main findings of the study are as follows. First, the structural equation modeling of creative process and product gave satisfactory results in absolute and incremental fit indexes. Second, among the three components of creative process - knowledge, inquiry skill-observation, and creative thinking skills -, only creative thinking skills had significant effects on creative product. Third, divergent thinking skills had the strongest correlation with the creative product, followed by convergent thinking skills. Associational thinking skills did not have significant correlation. Fourth, elementary students' scientific creativity could be categorized into Creative Type, Useful Type, Original Type, and Non-creative Type, based on their creative product. The Non-creative Type could be further classified into Common Type, Repetitive Type, Non-response Type, Irrelevant Type, and Abstract Type. Fifth, most students used either knowledge or observation in their creative process, making them either Knowledge-oriented Type or Observation-oriented Type. In addition, there were DT Type, DT-CT Type, and DT-CT-AT Type among the students, based on the kinds of creative thinking skills they mainly used in the process. This study provides implications for educators and researchers in scientific creativity education.

Analysis of Growth Characteristics and Major Components of Angelica gigas Root under Flower Colors (참당귀 꽃 색에 따른 생육특성 및 뿌리의 주성분 함량 분석)

  • Jeong, Dae Hui;Yun, Yeong Bae;Huh, Jeong Hoon;Park, Hong Woo;Um, Yurry;Jung, Chung Ryul;Park, Eung Jun
    • Korean Journal of Plant Resources
    • /
    • v.35 no.4
    • /
    • pp.445-454
    • /
    • 2022
  • The aim of this study was to provide basic data for breeding new varieties of Angelica gigas Nakai by identifying the growth characteristics and useful components of its below- and above-ground parts. The basic varieties expressing dark purple (N79-A), light blue-pink (62-C), and white (NN115-C) flowers were identified and collected in the cultivation area, and their seeds were cultured for use as experimental materials. Qualitative growth characteristics of the above-ground parts were then examined. Purple coloration was evident throughout the entire plant body in the N79-A group, whereas the 62-C and NN115-C groups displayed yellow-green coloration. In terms of quantitative growth characteristics, the 62-C group displayed significantly lower above- and below-ground growth than the other two groups. Levels of nodakenin and decursinol-angelate were high in the NN115-C group (0.88 ± 0.13%) and N79-A group (2.56 ± 0.12%). However, the overall results were not statistically significant. The results could provide a foundation for breeding new varieties of Angelica gigas Nakai, which are used predominantly for medicinal purposes and have low bolting and high yield potential.

A Trend Analysis of in the U.S. Cybersecurity Strategy and Implications for Korea (미국 사이버안보 전략의 경향 분석과 한국에의 함의)

  • Sunha Bae;Minkyung Song;Dong Hee Kim
    • Convergence Security Journal
    • /
    • v.23 no.2
    • /
    • pp.11-25
    • /
    • 2023
  • Since President Biden's inauguration, significant cyberattacks have occurred several times in the United States, and cybersecurity was emphasized as a national priority. The U.S. is advancing efforts to strengthen the cybersecurity both domestically and internationally, including with allies. In particular, the Biden administration announced the National Cybersecurity Strategy in March 2023. The National Cybersecurity Strategy is the top guideline of cybersecurity and is the foundation of other cybersecurity policies. And it includes public-privates as well as international policy directions, so it is expected to affect the international order. Meanwhile, In Korea, a new administration was launched in 2022, and the revision of the National Cybersecurity Strategy is necessary. In addition, cooperation between Korea and the U.S. has recently been strengthened, and cybersecurity is being treated as a key agenda in the cooperative relationship. In this paper, we examine the cyber security strategies of the Trump and Biden administration, and analyze how the strategies have changed, their characteristics and implications in qualitative and quantitative terms. And we derive the implications of these changes for Korea's cybersecurity policy.

Comparison between South Korean and Taiwanese college culture: Focusing on the Hierarchical Sexist Influence of Military Culture (한국과 대만의 대학문화 비교 : 위계와 성차별, 폭력의 군대적 징후를 중심으로)

  • Kwon, Insook;Nah, Yoonkyeong;Moon, Hyona
    • Women's Studies Review
    • /
    • v.27 no.1
    • /
    • pp.145-183
    • /
    • 2010
  • This study has compared South Korea with Taiwan, a society which has an almost non-hierarchical college culture in spite of its social and historical similarities to Korea, including the recruit system. By the means of quantitative and qualitative comparative studies and analysis, it has tried to clarify the reasons behind the hierarchical and sexist military culture of Korean universities. According to the comparative studies, Taiwan's college culture is less hierarchical than that of South Korea, and support for the necessity of hierarchy is weaker. Hierarchy had a greater influence on the payment of meals, appellations and society admissions in South Korea. Elements of military culture such as violence or group discipline were usually only present in South Korean college culture. Male-centered drinking and prostitution culture was also found to be stronger in South Korea. The historical and social reason for these differences is that Taiwan has a weaker basis for nationalism and militarism, both essential factors in the founding of hierarchical and collective culture. The most direct reason for the lack of hierarchy in Taiwanese college culture is the period of recruitment. In South Korea, young men usually apply for military service during the first or second year or college, and return to school as second or third-year studies. In Taiwan, however, men are usually recruited after having graduated from college. Students who have served in the army have proved to have a significant influence on violence, hierarchy and drinking culture in Korea's college culture. South Korea's college culture has two main problems. The first is that South Korean college students are not able to be critical towards the harms of South Korea's oppressively hierarchical collective culture, and therefore do not develop the strength to fight against it. This is all the more problematic because they are the future components of South Korea's main institutions. The second is that it roots male-centeredness even further into the South Korean mentality.

A Study on Improvement of throughput-linked Port Development (Trigger Rule) System (물동량 연동 항만개발제도 개선방안 연구)

  • LEE, Su-Young;LEE, Na-Young
    • Journal of Korea Port Economic Association
    • /
    • v.39 no.3
    • /
    • pp.179-189
    • /
    • 2023
  • Korea's port development adjusts the completion time and size of port facilities according to the future port throughput. The current port development system, which is referred to as "throughput-linked port development (Trigger Rule)", has received positive evaluation for efficiently executing the limited port development budget. Recently concerns have been growing over deteriorating service levels in port facilities in Korea due to accelerated aging of terminal facilities. However, the current port development system does not possess any standard for assessing the level of service and utilizing development indicators. The purpose of this paper is to calculate the Port Service Index (PSI) by selecting indicators to measure the Level of Service (LOS) of ports and deriving weights between the indicators, so that the current "throughput-linked port development (Trigger Rule)" can be linked with the level of service. Based on the result of analysis on a variety of preceding studies, the ship waiting rate, berth productivity, ship turnaround time and ship productivity were selected as four indicators to constitute the Port Service Index. The AHP and entropy methodologies were used to derive weights for each of four indicators which were later combined to calculate the comprehensive weight. The calculation formula of the Port Service Index (PSI) was derived by using the aggregated weights of each indicator, based on which the LOS of domestic container and bulk terminals were evaluated and this measurement result was divided into 6 classes to define each LOS. This paper contributes to draw the improvement measures for port development system that are able to connect the quantitative indicator of throughput, as well as a qualitative indicator of the level of "service".

An Analysis of Urie Consciousness and Behavioral Pattern in Close Relationships of the Korean People (한국인의 대인관계에서의 기본도덕으로서의 의리분석 : 한국인에게 진정한 친구는 의리있는 친구인가)

  • Kibum Kim;Mee Hee Kim;Sang-Chin Choi
    • Korean Journal of Culture and Social Issue
    • /
    • v.8 no.1
    • /
    • pp.79-101
    • /
    • 2002
  • The present study was to investigate the psychological characteristics of Urie(義理; interpersonal morality) in Korean interpersonal relationships in terms of qualitative approach and quantitative approach. In study 1, the authors developed an open-ended questionnaire focused on Urie behavior and not Urie behavior. The results revealed that helping, trusting, and caring behaviors and historicality were the key elements of Urie relationships. On the other hand, selfish and distrusting behaviors disrupted Urie relationships. In study 2, the authors conducted video experiment in order to study how the subjects interpret and understand Urie phenomenon. This video stimulus composed of love and friendship. The main characters showed their conflicts between love and friendship. Thus, subjects were asked to answer their interpretations and understandings about what was going on according to the scene. In study 3, we made three kinds of scenarios which were constituted in conflict situation between close friends who works together at their own company. If one asks some favors to you against social justice, how do you do? Most subjects evaluated the whistle blowing behavior as moral and just. However, they evaluated the insider as not good friend. They evaluated one who did favor even though that behavior was socially unjust as good friend and having Urie. Consequently, Korean people emphasize on their human relationships in everyday life. Urie relationship is built in close and Cheong relationship.

  • PDF

A Theoretical Model for Effective Public Diplomacy (효과적인 공공외교 분석을 위한 이론적 모형)

  • Kisuk Cho;Hwajung Kim
    • Journal of Public Diplomacy
    • /
    • v.2 no.2
    • /
    • pp.1-26
    • /
    • 2022
  • Since the seminal publication of Joseph Nye's Soft Power, soft power became the central concept to public diplomacy. However, over-emphasis on soft power, which is still controversial, deterred academics from producing valuable knowledge that can be applied to practices in the field. Soft power is a cause and effect at the same time and thus it makes systematic analysis almost implausible because it is not only a tool for successful public diplomacy, but it is a result of successful diplomacy. This study aims at offering a theoretical framework linking soft power and public diplomacy by including various factors that may affect the outcomes of effective public diplomacy. This theoretical framework assessing the effectiveness of public diplomacy will make it possible to explore how and when new public diplomacy was adopted in a certain country and examine hard and soft power resources. The model also includes political system variables such as ideas and values, institutions, governance, leadership, and communication system, which are expected to influence public diplomacy effectiveness rather than soft power itself. The model yields the effectiveness of public diplomacy by assessing outcome and impact relative to input and output that are applicable to practices. The model is expected to enable both quantitative and qualitative studies generating possible propositions from the model with some preliminary outcomes of comparative case studies.