• Journal of Families and Better Life
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• v.34 no.4
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• pp.51-75
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• 2016

This study focuses on the life experience of married women in their 30s to 40s who have experienced parental divorce. For a comprehensive understanding towards the women, this study takes a life history research approach. The participants of this research are 8 women who have experienced parental divorce and are now married with children. The data were gathered through in-depth interviews and were analyzed through the spiral of analysis, following the process of Wolcott's "description, analysis, and interpretation." The results of this study are as follows. First, participants experienced emotions such as fear, anger, and lack of affection. Second, parenting attitude and parental divorce had negative effects on the participants' formation and development of self concept and in turn, participants experienced anxiety and withdrawal from interpersonal relationships. Some had difficulties in concentrating on their schoolwork, which was caused by psychological effects from their instable home environments and some were negligent at school due to their parents' indifference or as an act of rebellion towards them. Third, although participants displayed interest towards the opposite sex, fear towards the opposite sex or unrealistic expectations led to difficulties in forming relationships. Participants also confessed that although they married so that they could escape their original family and form a new happy one, they experienced a rocky start at the beginning of their marriage. Fourth, parental divorce had a lifelong impact on children. Even after the children became adults, parental divorce affected each key stage of transition in life such as dating, choosing one's spouse, marriage, and child rearing. Fifth, participants displayed a strong attachment to life under the assumption that only they themselves can be depended on. This led to their strong commitments to a successful marriage without the possibility of divorce. In conclusion, parental divorce is not a transitory or incidental event. Rather, it becomes a part of the children's lives with lifelong implications.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2006.11a
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• pp.366-369
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• 2006

Multi Housing design has not considered the remodeling even at the beginning of the construction. This severely hindered systematic maintenance, providing fundamental causes of consuming society. In general, in about 20 years when the buildings become too old, they are brought down or removed with a trail of waste left behind. In addition, since the current remodeling or future remodeling type is a general remodeling that leaves only a frame, some question the role of the remodeling as a solution to the reconstruction from economically and environmentally efficient aspects. This study intends to find a solution for long-life span multi-family housing design, promoting sequential remodeling by stating the life cycle of components. Problems were identified by analyzing joints, design and construction of multi-family housing based on the previous researches. Conclusion from characterization of the design plan according to joint parts can be summarized as the following firstly, the problem of the wet was seen in joints between the structure and a finishing materials and ones between separate finishing materials. Secondly, the problem of overlap was frequently seen in joints between the structure and a door/window, ones between a door/window and a finishing materials, and ones between a finishing materials and an electrical/mechanical device.

• Korean Journal of Human Ecology
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• v.21 no.5
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• pp.849-862
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• 2012

The purpose of this study is to classify the characteristic and conduct a typological analysis of college students' attitudes toward remarriage by the elderly, employing Q-methodology. The results are as follows: College students strongly supported the opinion that remarriage relieves the elderly of loneliness, and that familial support is crucial for the remarriage to happen. They also rejected of the idea that the elderly would feel ashamed to remarry. Students' attitudes towards the elderly's remarriage fell into three classifications: the progressively accepting type, the realistically accepting type, and the conservatively accepting type. Type 1, "progressively accepting type" enthusiastically accepts and supports the elderly's remarriage as a progressive and emotive relationship. The "realistically accepting type" holds the opinion that remarriage in later life is based on overcoming loneliness or satisfying attachment need rather than love. This typology believes that the elderly would not be equal as spouses, and would not be overly distressed by public perception. The type 3, "conservatively accepting type" believes that remarriage would be likely to strain the elderly's relationship with other family members, that it will not be the beginning of a new independent life, but are generally accepting of the idea of remarriage in later life.

• Proceedings of the SCSK Conference
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• 2003.09a
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• pp.285-290
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• 2003

Living cells are continuously subject to all sorts of stress such as ultraviolet rays on skin cells. Tests made in various laboratories show that when young fibroblasts (Le. at the beginning of their proliferate life) were repeatedly put under stress at subletal doses, they acquired a phenotype similar to Senescence Induced Prematurely by Stress (SIPS). The work presented hereafter was made on a new model of senescence induced prematurely by stress from ultraviolet Brays (UVB). The human fibroblast model was put under repeated UVB stress, causing SIPS. Several ageing biomarkers were used in order to characterise the cells that underwent stress:. an increase in the proportion of positive cells with senescence associated $\beta$-galactosidase activity (SA $\beta$-gal) measured by a specific coloration,. the proportion in the different morphological stages that fibroblasts undergo during culture visualised by microscopic observation,. the expression of genes known for overexpressing during senescence, particularly fibronectin and apolipoprotein J, measured by Real Time-PCR,. the common deletion of 4,977 bp in mitochondrial DNA, evaluated by nested PCR. Studying the variation of these 4 biomarkers, we have evaluated the protective effect of a Laminaria digitata extract (LDE) that can be used as a natural active ingredient for anti-ageing cosmetics.

• Journal of English Language & Literature
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• v.54 no.2
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• pp.235-261
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• 2008

Countee Cullen has never been fully understood as a poet or as a man, for there existed certain ambiguities concerning his earlier life including family background. But a short but enormously important biography written by Shirley Washington, his niece, a daughter of his youngest sister, titled Countee Cullen's Secret Revealed by Miracle Book: A Biography of His Childhood in New Orleans, has at last come to shed some lights on his childhood which has never been disclosed by Cullen himself or anyone else. Now we can safely say that Countee Cullen was a combination of two personalities, James S. Carter, Jr. and Countee Cullen, In other words, he was a good example of a 'dichotomous personality.' Such disclosure of two conflicting personalities gives us a rare chance to re-examine his literary works. We can now put in perspective why in his first collection of poems Color Countee Cullen was so ironic, dark, cynic, and pessimistic about the life and the world. Also, we can understand why Cullen's response to the jazz was so complex and contradictory and in what ways he used artistic technique to conceal his own feelings. Thanks to Washington's biography, we are now able to locate the real cause of his failure to mature as a poet and of his failure to materialize what was promised in the beginning of his literary career.

• Korean Journal of Soil Science and Fertilizer
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• v.50 no.1
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• pp.40-48
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• 2017

In this study, we evaluated the nitrogen (N) mineralization potential and Nitrogen use efficiency (NUE) of oil-cake, compost, hairy vetch and barley, which are the most widely used organic amendments in South Korea. The N mineralization potential (No) for organic fertilizers treated soil was highest for the hairy vetch treatment with a value of $18.9mg\;N\;100\;g^{-1}$, followed by oil-cake, barley and compost. The amount of pure N mineralization potentials in hairy vetch, oil-cake, barley and compost treatments were 8.42, 7.62, 3.82 and $3.60mg\;N\;100\;g^{-1}$, respectively. The half-life ($t_{1/2}$) of organic N in soil amended with oil-cake fertilizer mineralized quickly in 17 days. While, $t_{1/2}$ values of organic N for the compost and barley treatments accounted to 44.4 and 44.1 days, respectively. Oil-cake was good in supplying nutrients to plants. Compost and barley inhibited plant growth in the beginning growth stage and this is attributed to N immobilization effect. The results of this study highlight that compost and barley could be used as potential slow release fertilizers in conventional agriculture.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.45 no.6
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• pp.666-674
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• 2012

We examined the cause of a disease outbreak in adult olive flounder Paralichthys olivaceus, which occurred at a Korean aquaculture farm in Korea in 2011. The principal signs included an expanded abdomen and congested liver, with persistent mortality (a little over two months). At the beginning of the outbreak, farm administrators misjudged the disease as bacterial in origin, because of the aforementioned signs, persistent mortality, and the detection of bacterial species, including Vibrio spp. and Streptococcus spp. Moreover, the detection of viral hemorrhagic septicemia virus (VHSV) by reverse trasnscription-PCR analysis was complicated by use of the VHS-VN primer set, which has been in general use recently, because it produced weak bands in some samples. Therefore, we recommend the use of at least two different primer sets in the diagnosis of VHSV. Our histopathological findings indicate that necrotizing myocarditis could be considered a pathogenic sign of VHSV infection.

• Hwankyungkyoyuk
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• v.10 no.2
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• pp.175-190
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• 1997

The objective of this study is to increase bio-diversity by developing more efficient methods to created habitats and applying them in introducing prototypes of forest, grassland, and marsh which are found in natural ecosystem, to urban environment. In this context, in creating man-made marsh in Seoul Engineering High School, firstly, philosophical framework to create man-made marsh to restore urban nature and conceptual system to create a region considering life and ecosystem were established. Secondly, by applying the philosophical framework and the conceptual system, water quality section, plantation section, and techniques to create habitats to increase bio-diversity were introduced. Lastly, when the creation is completed, maintenance of the marsh will continue with participation and education of students and residents. This study presents how natural environment can be restored and created in urban areas. This may be viewed as modest beginning. I expect this study proves to be effective in increasing bio-diversity, fulfill its role as an experiment station for restoration and creation of natural environment and natural educational center for students and community as well as habitats for wild life, and open a new chapter in developing a society seeking co-existence of humankind and life. Therefore, when technological guideline on restoration and creation of man-made marsh in urban area is developed based on the outcome of this study, expansion of the project to nationwide including metropolitan cities like Seoul is recommended.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1994.10a
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• pp.235-239
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• 1994

In this paper, the fatigue behaviour of typical axisymmetric forward extrusion die is investigated and extrusion process is analyzed by the rigid-plastic finite element method and elasto-plastic finite element method. To approach the crack problem involving crack initiation and propagation in extrusion die, LEFM(Linear Elastic Fracture Mechanics) is introduced and singular element which models stress.strain singularity in the crack tip vincity has been used to obtain an accurate stress intensityu factor values and other results. Form the displacement around the crack tip the stress intensity factor and the effective stress intensity factor at the beginning of the die inlet radius has been calculated. Applying proper fatigue crack propagation criterion such as Paris/Erdogan fatigue law to this data the angle and direction of fatigue crack growth has been simulated and these are compared with some experimental results. Using the computed crack growth rate, fatigue life of the extrusion die has been evaluated.

• Journal of Microbiology and Biotechnology
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• v.29 no.3
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• pp.367-372
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• 2019

Deactivation of aminoglycosides by their modifying enzymes, including a number of aminoglycoside O-phosphotransferases, is the most ubiquitous resistance mechanism in aminoglycoside-resistant pathogens. Nonetheless, in a couple of biosynthetic pathways for gentamicins, fortimicins, and istamycins, phosphorylation of aminoglycosides seems to be a unique and initial step for the creation of a natural defensive structural feature such as a 3',4'-dideoxy scaffold. Our aim was to elucidate the biochemical details on the beginning of these C3',4'-dideoxygenation biosynthetic steps for aminoglycosides. The biosynthesis of istamycins must surely involve these 3',4'-didehydroxylation steps, but much less has been reported in terms of characterization of istamycin biosynthetic genes, especially about the phosphotransferase-encoding gene. In the disruption and complementation experiments pointing to a putative gene, istP, in the genome of wild-type Streptomyces tenjimariensis, the function of the istP gene was proved here to be a phosphotransferase. Next, an in-frame deletion of a known phosphotransferase-encoding gene forP from the genome of wild-type Micromonospora olivasterospora resulted in the appearance of a hitherto unidentified fortimicin shunt product, namely 3-O-methyl-FOR-KK1, whereas complementation of forP restored the natural fortimicin metabolite profiles. The bilateral complementation of an istP gene (or forP) in the ${\Delta}forP$ mutant (or ${\Delta}istP$ mutant strain) successfully restored the biosynthesis of 3',4'-dideoxy fortimicins and istamycins, thus clearly indicating that they are interchangeable launchers of the biosynthesis of 3',4'-dideoxy types of 1,4-diaminocyclitol antibiotics.