• Journal of The Korean Society of Grassland and Forage Science
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• v.14 no.3
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• pp.201-205
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• 1994

The objectives of this research are to determine the seasonal and varietal differences of total digestible nutrients(TDN) and in vitro dry matter digestibility(1VDMD) of tall fescue grown in Takwalyon areas, based on the data of preceding paper(Lee et al. 1994b). The results are may be summarized as follows : 1. The values of total digestible nutrients(TDN) and in vitro dry matter digestibility(1VDMD) in 1st cutting were lower than the values of 2nd and 3rd cutting, and it was due to different stages of growth and seasonal difference of climatic conditions in this areas. 2. The relative yield(RY) had negative significantly correlation with in vitm dry matter digestibility(1VDMD) of 1st cutting. 3. Total digestible nutrients(TDN) indicated high positive significant correlation with in vitro dry matter digestility (IVDMD) in all cuttings. 4. The variety of Johnstone showed a high values of total digestible nutrients(TDN) and in vitm dry matter digestibility(1VDMD) of 2nd and 3rd cutting, but Fuego was lower than the other varieties.

• Proceedings of the Korean Society of Embryo Transfer Conference
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• 2000.06a
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• pp.64-75
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• 2000

During the last three decades considerable advances has been made in goat embryo production and transfer technology. The Korean native black goat is the most useful domestic ruminant in this country for biological investigation and application because it has a lot of merits such as relatively short generation period(1 vs 2 year for a cow), easy of handling, well adaptation, high fertility, convenient and inexpensive. This article covers the methods of superovulation, estrus synchronization, embryo collection and transfer techniques, pregnancy diagnosis and subsequent pregnancy and kidding rates for the production of transgenic Korean native black goats. More than one hundred goat kids have been produced as a result of our transgenic goat project via microinjection of foreign gene into pronuclei, in vitro culture, transfer of various stages of fresh and frozen-thawed microinjected embryos into oviducts or uteri of recipient does. We have got two transgenic goats carrying a transgene targeting the expression of recombinant human granulocyte colony stimulating factor(hG-CSF) to the mammary gland so far. Since collection and transfer of embryos in this species is usually accomplished by laparotomy, exteriorization of the reproductive tract for surgical embryo collection leads to the formation of post-operative adhesions. Nonsurgical or laparoscopic technique to reduce adhesions from repeated surgeries has great advantages in improving embryo production and transfer especially from valuable donors. We will discuss this later.

• Korean Journal of Occupational Health Nursing
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• v.16 no.2
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• pp.119-129
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• 2007

Purpose: The purposes of this study were to understand the coping experience that family caregivers undergo during the process of care, to grasp coping behaviors used to solve problems and, finally, to develop a substantive theory by analyzing the coping process. Method: The methodology of collecting and analyzing data used in this study followed the ground theory. Data were collected through in-depth interviews with open-ended and descriptive questions about the subjects' coping experiences. The survey was conducted between May 2006 and August. The subjects of this study were 10 women. Result: The result of the study is as follows. Core category of This Study was "Self-Sacrifice". And The coping process of family caregivers while taking care of the industrial disaster victim was found to have five stages: shocked stage; undertaking stage of new role; skilled stage; exhausted stage; and desiderating stage. Seven coping behaviors were found to reduce the stress of role and anguish resulting from care. Conclusion: The result of this study is helpful for developing effective industrial nursing strategies suitable for each coping stage. It is necessary to practice nursing mediation and to analyze the change about nursing effect and family caregivers' adaptation.

• Earthquakes and Structures
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• v.2 no.1
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• pp.89-107
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• 2011

In this paper a simple mathematical model is presented for estimating the natural frequencies and corresponding mode shapes of a tall building with outrigger-belt truss system. For this purposes an equivalent continuum system is analyzed in which a tall building structure is replaced by an idealized cantilever continuum beam representing the structural characteristics. The equivalent system is comprised of a cantilever shear beam in parallel to a cantilever flexural beam that is constrained by a rotational spring at outrigger-belt truss location. The mathematical modeling and the derivation of the equation of motion are given for the cantilevers with identically paralleled and rotational spring. The equation of motion and the associated boundary conditions are analytically obtained by using Hamilton's variational principle. After obtaining non-trivial solution of the eigensystem, the resulting is used to determine the natural frequencies and associated mode shapes of free vibration analysis. A numerical example for a 40 story tall building has been solved with proposed method and finite element method. The results of the proposed mathematical model have good adaptation with those obtained from finite element analysis. Proposed model is practically suitable for quick evaluations during the preliminary design stages.

• Journal of Korea Multimedia Society
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• v.14 no.5
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• pp.650-657
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• 2011

This paper proposes a novel bit allocation algorithm for H.264 scalable extension(SE) based on a human visual system (HVS) to improve the coding efficiency. The proposed algorithm is consist of two stages: visual weighting model and visual weighting-based bit allocation algorithm. In the first stage, the visual weighting for each macroblock (MB) is analyzed according to the region of interests. Then the adaptation of the visual weighting into the bit allocation routine for each quality layer is performed for improving the visual quality. In the simulation results, it is observed that the proposed scheme can improve the subjective and objective video quality in the same bit rate, compared to the previous scalable video coding in H.264.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.25 no.3
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• pp.185-196
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• 2018

Purpose: The purpose of this study was to investigate the alopecia experience in adults and to explain the process of their experiences. Methods: Using a grounded theory methodology, 18 interviews were performed with fourteen men and four women, 34~57 years of age, suffering from alopecia. Data were analyzed using the constant comparative analysis method. Results: The core category emerged as "inescapable fetters". adults with alopecia engaged in three stages: embarrassment, seeking solution, and acceptance phase. Causal conditions were a vicious cycle of stress, biological factors and poor life style. Contextual conditions were recognition of irreversibleness, negative social awareness, and marriage. The central phenomenon of the adaptation process among the adults with alopecia was withdrawn life due to negative body image. Action/Interaction strategies included rely on medical treatment, efforts to take good care of hair, research for information treatment, efforts to cover up hair loss, and mind control. Intervening conditions were time cost, economic cost, support of surrounding people. Consequences was burden of unfinished lifetime homework. Conclusion: When caring for these adults, it is important to identify needs, allow patients to express what they want at that moment and support them in maintaining a daily life.

• Fisheries and Aquatic Sciences
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• v.25 no.10
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• pp.499-516
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• 2022

Endobiotic microalgae inhabit various groups of organisms, including bivalves. In this group, the association between the giant molluscs Tridacna and Symbiodinium is one of the most recognizable. This consortium allows hydrobionts to survive in oligotrophic waters by regulating their metabolism. The available research has provided an understanding of the interaction and adaptation of these symbionts, but the problem of the beginning of the formation of these relationships remains unresolved. In the case of Tridacninae, symbiosis is essential for the survival of bivalves, in contrast to representatives of the Mytilidae and the Coccomyxa found in them. A few works devoted mainly to the morphological aspects of invasion have shown that endobiont causes inflammation and pathology. Having data to clarify the exact "diagnosis" of the interaction of these organisms is not enough. It is possible that the relationship between bivalves and Coccomyxa is in the early stages of being established, which may lead to mutualism or parasitism in the future. We assume that the analysis of works on the symbiosis of Symbiodinium and bivalves will facilitate the course of research for the less studied Coccomyxa and their hosts. By postulating the Coccomyxa represent a unique evolutionary model for the formation of a symbiotic system, it is possible to use this system to study the interaction of organisms during their initial contact. The identified signalling pathways and mechanisms that allow the photobionts to evade host immunity can be useful for constructing new forms of symbiosystems.

• Korea Journal of Hospital Management
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• v.29 no.1
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• pp.19-31
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• 2024

Purposes: The purpose of this study is to analyze cases of development and operation of a mentoring program that provides psychological support to new employees and helps them adapt to work, thereby applying it to actual work and laying the foundation for follow-up research. Methodology: We explored the development and application process of A Hospital mentoring program by applying the mentoring program model developed according to the procedures of the ADDIE model, and confirmed the perceptions of participants who participated in the training course through analysis of activity logs and in-depth interviews. Findings: The main results of the case analysis are as follows. First, the curriculum was developed according to the stages of analysis, design, development, implementation, and evaluation. As a result of activity log and in-depth interview analysis, participants recognized that the mentoring program was helpful in forming social relationships, organizational adaptation, and preventing job turnover, and recognized difficulties in communication. Participants mentioned supplementing the operating system. Practical Implication: The results of a systematic review of the application and effectiveness of mentoring programs for new employees can serve as reference material for practical program design.

• The Journal of the Korea Contents Association
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• v.20 no.10
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• pp.470-487
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• 2020

The study was aimed to find out whether there are differences in perception toward multicultural youth's career problems according to the four stages of life cycle(adolescence, pre-marriage, family formation child rearing), and multicultural families and non-multicultural respondents. Also is was aimed to find out if there is an interactive effect on problem recognition. A nationwide survey was conducted using questionnaire on the perception of multicultural youth careers and a total of 1,338 responses were used for the final analysis. For the research purpose, a two-way MANOVA was performed. First it was found that multicultural family members had higher negative perceptions of multicultural appearances than non-multicultural family members had and the adolescents had relatively low negative perceptions of personal relationships and social life adaptation of multicultural youth. Also, as a result of examining whether there is an interaction effect on perception of career problems of multicultural adolescents between multicultural families and their life cycle stages, interaction effects existed in all aspects of family environment, career activities, education, and institutions. It has been shown that there are differences in the perception of career issues among members of multicultural families or among non-cultural families.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.295-305
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• 2010

The occupational socialization process of security and secretary service goes through four stages of preparation, adaptation, conflicts, and maturity and dynamic and incessant changes. The preparation stage includes the preparation to become a security and secretary service, the importance of what to prepare, usefulness of college education, required courses, and certificates. The adaptation stage includes the percentage of bodyguard and secretary, systematic nature of work, stagnation of the job, abilities required for a security and secretary service, elements to work on, job satisfaction, information sources, professionalism of the job, and future of the job. In the conflicts stage includes conflicts at work, difficulty of security and secretary service, problem-solving efforts, advice and consultation, satisfaction with workload, job stress, perceptions of others for security and secretary service, experience of trying to get another job, and supplements. And the maturity stage includes the changes to the roles and capabilities of a security and secretary service, autonomy of business management, degree of others' recognition of one's abilities, methods to evaluate job performance, salary, social status and pride, and efforts for self-development.