• Asian-Australasian Journal of Animal Sciences
• /
• v.11 no.5
• /
• pp.463-469
• /
• 1998

Factor analysis was applied as a multivariate statistical technique to official genetic evaluations of type classification traits for 1,265,785 Holstein cows and 10,321 sires computed from data collected between August 1982 and June 1994 in Canada. Type traits included eighteen linear descriptive traits and eight major score card traits. Principal components of the factor analysis showed that only five factors explain the information of the genetic value of linear descriptive traits for both cows and sires. Factor 1 included traits related to mammary system, like texture, median suspensory, fore attachment, fore teat placement and rear attachment height and width. Factor 2 described stature, size, chest width and pin width. These two factors had a similar pattern for both cows and sires. In constrast, Factor 3 for cows involved only bone-quality, while in addition for sires, Factor 3 included foot angle, rear legs desirability and legs set. Factor 4 for cows related to foot angle, set of rear leg and leg desirability, while Factor 4 related to loin strenth and pin setting for sires. Finally, Factor 5 included loin strength and pin setting for cows and described only pin setting for sires. Two factors only were required to describe score card traits of cows and sires. Factor 1 related to final score, feet and legs, udder traits, mammary system and dairy character, while frame/capacity and rump were described by Factor 2. Communality estimates which determine the proportion of variance of a type trait that is shared with other type traits via the common factor variant were high, the highest ${\geq}$ 80% for final score, stature, size and chest width. Pin width and pin desirability had the lowest communality, 56% and 37%. Results indicated shifts in emphasis over the twelve-year period away from udder traits and dairy character, and towards size, scale and width traits. A new system that computes fmal score from type components has been initiated.

• Journal of Korean Academy of Nursing
• /
• v.28 no.2
• /
• pp.244-255
• /
• 1998

The purpose of this study was to verify the reliability and validity of the Rosenbaum self-control schedule (SCS) for assessing resourcefulness in Korea and to explore the simplified scale. The study subjects consisted of 787 adults in a community. The data was collected during the period from Oct. to Dec., 1995 and analyzed as Cronbach α, item correlation with total, Pearson correlation and factor analysis with varimax rotation using SAS. Results were as follows : The mean SCS score for this sample was 17.2 and there were statistical differences for gender(men, 13.1 ; women, 20.0) on the SCS scores. The cronbachα of SCS with 36 items was .74 and when simplified with 30 items, it's coefficient alpha was .78. The translated content of the SCS was validated by two nursing faculty members and one professor of psychology. Factor analysis revealed the most parsimonious structure was obtained when six factors were extracted and subsequently rotated via the varimax criterion. There was 40.2% of total communality variance in the SCS with 36 items. The total communality variance was slightly increased to 43.4% with 30 items of the SCS. In order to reduce from 36 items to 30 items, the process excepted 6 items having low item correlation with total and low MSA(means of sampling adequacy) of factor analysis. According to factor analysis, there are six factors such as emotion control, impulse control, self-efficacy, coping with problems, pain control and satisfaction control, The SCS was found to have low, but statistically significant, correlations with social desirability and helplessness. From the above results, it can be concluded that the reliability of the SCS(inherent and simplified) was a acceptable level and its validity was reasonable when comparing it with other validity studies. To determine the usefulness the simplified scale, further study is necessary to simultaneously compare and analyze both scales for stability.

• The Korean Journal of Applied Statistics
• /
• v.26 no.6
• /
• pp.933-942
• /
• 2013

Common factor analysis and principal component analysis represent two technically distinctive approaches to exploratory factor analysis. Much of the psychometric literature recommends the use of common factor analysis instead of principal component analysis. Nonetheless, factor analysts use principal component analysis more frequently because they believe that principal component analysis could yield (relatively) less accurate estimates of factor loadings compared to common factor analysis but most often produce similar pattern of factor loadings, leading to essentially the same factor interpretations. A simulation study is conducted to evaluate the relative performance of these two approaches in terms of factor pattern recovery under different experimental conditions of sample size, overdetermination, and communality.The results show that principal component analysis performs better in factor recovery with small sample sizes (below 200). It was further shown that this tendency is more prominent when there are a small number of variables per factor. The present results are of practical use for factor analysts in the field of marketing and the social sciences.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
• /
• 2008.10a
• /
• pp.235-240
• /
• 2008

The recent development of efficient thermal prime movers for distributed generation id changing the focus of the production of electricity from large centralized power plants to local generation units scattered over the territory. The scientific communality is addressing the analysis and planning of the distributed energy resources(der) with wide spread approaches, taking into account technical, environmental, economical and social issues. The coupling of cogeneration system to absorption/electric chillers or heat pumps as well as the interactions with renewable sources, allow for setting up multi-generation systems for building cooling heating and power(BCHP) systems of different energy vectors such as electricity, heat(at different enthalpy levels), cooling power, hydrogen, various chemical substances and so forth. Adoption of the composite multi-generation systems may lead to significant benefits in term of higher efficiency, reduced $CO_2$ emissions and enhanced economy. This paper outlines the main aspects of the BCHP system framework, illistrating its characteristics and summarizing the relevant distributed multi-generation structures.

• Journal of Christian Education in Korea
• /
• v.62
• /
• pp.257-283
• /
• 2020

Our current society is experiencing a mass upheaval through globalization: mobility, hybridity, and cultural diversity are part of this world phenomenon. We can say that these changes are a result of people crossing borders due to international travel, immigration, emigration, studying abroad, labor, international marriages, fast and comfortable transportation, and the Internet. According to 2018 UNPD(Untied Nations Population Division)'s data, the international migrants have exceeded 258 million as of 2017. The increased number of migrants signifies that people with various backgrounds move from their own culture to a drastically different one. Interacting with different cultures can give people the chance to experience abundant lifestyles and improve life qualities. During that process, however, the differences between cultures can cause not only misunderstandings, conflicts, and violent collisions, but also xenophobia or radical nationalism. The current society is confronted with a problem: the people cannot stubbornly cling to a homogenous ethnicity anymore, which makes the coexistence between the citizens and immigrants necessary. Through these circumstances, I aim to suggest an educational model and a practical curriculum from a Christian perspective as the aim of this study. It seeks to encourage Christians to flexibly respond to these conflicts and collisions, and to fulfill their social responsibilities faithfully. For this reason, I will explore and seek sharing practical values through both shalom's communality as a theological approach and postconventionality in mature adults as a social-scientific approach. Consequently, I have few requests for the readers. First, approach with openness, understanding, and respect for other culture. Second, see this study as one step of confronting the global problem for coexistence and coprosperity of all social agents in the earth, a limited space. Third, notice that this study uses the interdisciplinary approach (theological and social scientific view) for a shareable, practical value that consistently leads the curriculum of my thesis, and a scientific method to eliminate bias. Lastly, understand that this study will eventually be used in educational practice, and as a result it prioritizes giving thought to the Christian educational environment. This study begins by exploring the conflicts and collisions between diverse cultures of our current society in international and national cases. Afterwards, I will reflect on how we can manage these conflicts and collisions by exploring the social-scientific view, postconventionality in mature adults, the theological view, and shalom's communality as a complement for the postconventionality's personal dimension. In conclusion, I suggest a curriculum that achieves peace as a practical value based on postventionality and shalom's communality for this study's goal.

• Journal of Distribution Science
• /
• v.13 no.9
• /
• pp.103-112
• /
• 2015

Purpose - This paper aims to provide a step-by-step approach to factor analytic procedures, such as principal component analysis (PCA) and exploratory factor analysis (EFA), and to offer a guideline for factor analysis. Authors have argued that the results of PCA and EFA are substantially similar. Additionally, they assert that PCA is a more appropriate technique for factor analysis because PCA produces easily interpreted results that are likely to be the basis of better decisions. For these reasons, many researchers have used PCA as a technique instead of EFA. However, these techniques are clearly different. PCA should be used for data reduction. On the other hand, EFA has been tailored to identify any underlying factor structure, a set of measured variables that cause the manifest variables to covary. Thus, it is needed for a guideline and for procedures to use in factor analysis. To date, however, these two techniques have been indiscriminately misused. Research design, data, and methodology - This research conducted a literature review. For this, we summarized the meaningful and consistent arguments and drew up guidelines and suggested procedures for rigorous EFA. Results - PCA can be used instead of common factor analysis when all measured variables have high communality. However, common factor analysis is recommended for EFA. First, researchers should evaluate the sample size and check for sampling adequacy before conducting factor analysis. If these conditions are not satisfied, then the next steps cannot be followed. Sample size must be at least 100 with communality above 0.5 and a minimum subject to item ratio of at least 5:1, with a minimum of five items in EFA. Next, Bartlett's sphericity test and the Kaiser-Mayer-Olkin (KMO) measure should be assessed for sampling adequacy. The chi-square value for Bartlett's test should be significant. In addition, a KMO of more than 0.8 is recommended. The next step is to conduct a factor analysis. The analysis is composed of three stages. The first stage determines a rotation technique. Generally, ML or PAF will suggest to researchers the best results. Selection of one of the two techniques heavily hinges on data normality. ML requires normally distributed data; on the other hand, PAF does not. The second step is associated with determining the number of factors to retain in the EFA. The best way to determine the number of factors to retain is to apply three methods including eigenvalues greater than 1.0, the scree plot test, and the variance extracted. The last step is to select one of two rotation methods: orthogonal or oblique. If the research suggests some variables that are correlated to each other, then the oblique method should be selected for factor rotation because the method assumes all factors are correlated in the research. If not, the orthogonal method is possible for factor rotation. Conclusions - Recommendations are offered for the best factor analytic practice for empirical research.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.34 no.1
• /
• pp.97-120
• /
• 2023

This study determined the communicative characteristics of public libraries through locality, communality, interactivity, and organism and sought to measure the validity of their components to define the role of libraries based on the analysis. According to the analysis results, there are four communicative characteristics of public libraries: locality, communality, interactivity, and organism. This study defined the role of public libraries according to communicative characteristics. First, libraries should encourage the formation of a healthy society by providing a space for diverse community activities, contributing to the building and strengthening of their local communities, and offering the necessary information to do so. Second, libraries should contribute to the formation of local cultural communities and strengthen interpersonal relations among community members to reinforce a sense of community, while also supporting the heightening of social adaptability to foster a sense of belonging and community activity participation among members. Third, libraries act as a space for sharing ideas between generations, provide a space to carry out leisure activities, and enable the cultural prosperity of local communities. Lastly, as a representative space of local communities, libraries raise the value of the residential environment and contribute to their communities and members.

• Journal of the Korean housing association
• /
• v.24 no.2
• /
• pp.11-24
• /
• 2013

Sustainable development has been praised as important new planning paradigm. The concept is being increasingly used in planning processes to address environmental, social and economic sustainable development. The social sustainability is important as community in modern life. The purpose of this study is to find out the community elements of sustainable housing to make it better life in residential environment. The Methods are content analysis and experts survey. We execute the literature for method to find the importance and indicator of social sustainability. We execute the experts survey to find the adequacy of the classification criteria, the adequacy of the indicators and the adequacy of the classification system. The findings of this study are as following; the social sustainability is important to support the sustainable housing planning. The indicator of the social sustainability is deduced; 'Locality' are deduced 'Native support', 'History and culture' and 'Reflected the local characteristics'. 'Communality' are deduced 'Citizen participation', 'Social integration', 'Community space and facilities' and 'community activities and programs'. 'Organic' are deduced 'Employment', 'Self-sufficiency', 'Safety and convenience', 'Infrastructure and service' and 'Housing condition'.

• Journal of Korean Academy of Nursing Administration
• /
• v.9 no.2
• /
• pp.193-203
• /
• 2003

Purpose : The purpose of this study was to develop the Operating Room Nursing Malpractice Scale and to test reliability and validity of the instrument and to describe frequency of malpractice. Method : The subjects used to verify the Scale's reliability and validity were 179 nurses who working at 3 university hospital and 6 general hospital in Busan and Kyoung nam province from september 1 to October 10, 2002. The data was analyzed by the SPSS/ WIN 10.0 program. Result : The factor analysis classified a total 5 factors statistically, it's communality was 44.18%. Item content are as follows. The factor were 'malpractice in the patient's preparation', 'malpractice in nursing technique', 'malpractice in the management of the environment', 'malpractice of the patient's security', 'malpractice in the supervision of the patient'. The most frequent malpractice was 'The patient complained of waiting for a long time to go back from the operating room because of inadequate communication with another department'. Conclusion : The scale of operating room nursing malpractice was to prevent the severe nursing accident and to provide the basis of needs of educational program.

• Journal of Korean Academy of Nursing
• /
• v.32 no.2
• /
• pp.243-253
• /
• 2002

The purpose of this study was to develop Nurse's Suffering Experience Scale and to test the reliability and validity of the instrument. Method: The subjects used to verify the scale's reliability and validity were 220 nurses who were taking care of the end stage cancer patients, while working at university and general hospitals in Daegu and Kyungbuk province from April 20. to July 10, 2001. The data was analyzed by the SPSS/WIN 8.0 program. Results: A factor analysis was conducted, and items that had a factor loading more than .40, and an eigen value more than 1.0. were selected. The factor analysis classified a total of seven factors statistically, and it's communality was 44%. The explanation of factors based on the conceptual framework and item content are as follows: The first factor was expanding self consciousness, the second factor was forming empathy with family, the third factor was professional challenge, the fourth factor was change of values, the fifth factor was spiritual sublimation, the sixth factor was helplessness, and finally the seventh factor was rejection to death. Cronbach's coefficient to test reliability of the scale was .8665 for total of 44 items. The Scale for Nurse's Suffering Experience developed in the study was identified as a tool with a high degree of reliability and validity. Therefore this scale can be effectively utilized for the evaluation of the degree of nurse's suffering experience in clinical settings.