• Journal of Family Resource Management and Policy Review
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• v.21 no.2
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• pp.25-50
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• 2017

Recently, concern about family safety is rising again as an important issue with the context of family healthiness and well-being in Korean society despite of the dramatic economic growth. The purpose of this study is to examine the status of family safety of singles and single-parent households and to investigate the effect of social capital on the level of their family safety. Data are from the 10th wave of Korea Welfare Panel Study analysing one-person households(N=2,017) and single-parent households(N=172). One-person households were categorized as three groups by age(the youths/middle-aged/the elderly) and single-parent households were also three by family types(mother-child/fahter-child/grandparent-child). The major results were as follows: First, the mean of family safety index was highest among middle-aged, while single youths had the fewest problems in terms of family safety. Second, social capital was found to vary by family structure. In the one-person households, all the levels of the social capital variables, including trust, bond, acceptance, and participation, differed significantly; only two variables, bond and embracement, differed in the single-parent households. Third, social capital differed between the low-income households and others significantly. Forth, the positive effects of social capital on overcoming family safety problems were investigated. In conclusion, social capital represents an alternative resource for overcoming economic hardship for low-income one-person/single-parent households, especially for middle-aged singles and father-child single-parent households. Based on these empirical results, theoretical implications were discussed with regard to family policy and programs.

• Journal of the Korea Convergence Society
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• v.8 no.3
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• pp.101-114
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• 2017

This is the study of descriptive research to look into influence factors about how married middle-aged male' job stress, job security, depression, family bond, subjective health status and social support have an effect on the quality life. We collected data by giving questionnaires to 149 middle-aged males between the ages of 40 to 49, living B & D metropolitan city and J city, and used the SPSS/WIN18.0 version to analyze. The correlated factors of quality of life included job stress(r=-.544, p<.001), depression(r=-748, p<.001), job security(r=.566, p<.001), subjective health status(r=.537, p<.001), family bond(r=.712, p<.001) and social support(r=.739, p<.001). Factors influencing quality of life are depression, social support, family bond, subjective health status, current employment period and regular exercise. Therefore, a good quality middle-aged life, it will be needed to lower the depression, expand the social support system, improve family bond and subjective health status, increase employment period.

• Informatization Policy
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• v.24 no.1
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• pp.100-112
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• 2017

This study verified the relationship between internet use, family relationship, and cyber violence victimization by comparing models. 2013 The survey of Internet addiction of National Information Society Agency was used in this study to verify relationship between variables. We compared the model which internet use impact cyber violence victimization through mediating fully family relationship and other model which internet use influence cyber violence victimization through mediating partially family relationship. Based on final model (model 1), More internet use was related to lower family bond and lower family bond was associated with more cyber violence victimization. This results imply that family relationship have an important role in relationship between internet use and cyber violence victimization rather than internet use impact directly cyber violence victimization.

• BMB Reports
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• v.32 no.1
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• pp.76-81
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• 1999

Dihydrolipoamide dehydrogenase (E3) belongs to the protein family of pyridine nucleotide-disulfide oxidoreductases, including glutathione reductase (GR). The two subunits of human GR are covalently linked by an intersubunit disulfide bond between the pair of the Cys-90 residues. The corresponding residue (Ser-79) in human E3 was substituted to Cys using site-directed mutagenesis. The mutant was expressed in Escherichia coli and highly purified using an affinity column. About 40% of the mutants formed a spontaneous intersubunit disulfide bond linkage. This result implies that Ser-79 and possibly surrounding residues constitute one of the several intersubunit contact regions in human E3. It provides another good piece of evidence for the predicted high degree of the structural homology between human E3 and GR. Spectroscopic studies indicate conformational changes in the mutant.

• International Journal of Human Ecology
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• v.17 no.2
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• pp.17-30
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• 2016

This study was conducted to make a policy proposal for Korean grandparent-grandchildren families, analyzing what adversities adolescent grandchildren suffer when living in a grandparent-grandchild family, the types of Korean families and how family resilience appears as family power. In order to conduct this study, 20 consenting adolescents were selected for an interview from grandparent-grandchildren families recommended by the U City Healthy Family Support Center. This study suggests the following conclusions. First, we discussed divorce, death, financial bankruptcy related stress, economic difficulties in the present family, accidents involving family members of a grandparent-grandchild family, grandparents' serious disease, death, family conflicts and family comparisons with friends. Second, in the domain of family resilience, desire to maintain the family appeared as a Korean value. In addition, efforts to bond as an emotional family and grandchildren's attitudes of gratitude to grandparents are also expressed. However, family conversation appears weak due to the generation gap between adolescents and grandparents or complications from family stress. Third, the resilience in the family organization appeared weak since there are relatively insufficient socio-economic resources to support the family. This study makes several suggestions for family policies and shows the necessity to develop policies that reflect the needs of grandchildren and grandparents.

• Journal of the Korean Home Economics Association
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• v.44 no.4 s.218
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• pp.23-38
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• 2006

The purpose of this study was to investigate the strengths of single-parent families and the related variables based on the family strength approach. The major findings were as follows. First, good communication, family bond, children's adjustment and coping ability were characteristics of single-parent family strengths. Secondly, strengths of single-parent family were related to income and period of becoming a single-parent family. Thirdly, single parents who had a higher level of personal resources such as high self-esteem and economic stability perceived a higher level of family strengths. Fourth, single parents who had a higher level of social support perceived a higher level of family strength. Fifth, there was no interaction effect between personal resource and social resource on single-parent family strengths. Last, both personal and social resources had effects on the strength of single- parent family. Especially personal resource and self-esteem were the most important variables and had a strong influence on single-parent family strengths. The results of this study have important implications for theory, research and practice. Research on the strengths of the Korean single-parent family is new and more extensive investigation is required.

• Journal of Convergence for Information Technology
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• v.9 no.5
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• pp.235-242
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• 2019

we explored the case of 'H-Community', a private organization that supports alcohol-dependent homeless people living in the Jokbang village, based on the awareness that "the key to social assistance for alcohol-dependent homeless may be an influential relationship to replace the role of their families." The data collection and analysis followed the research that Spradley presented, and the result was 'living in the balance rather than the great affection'. However, the density of the relationship and emotional bond appeared different, which had something to do with their respective life processes and their health, age and economic conditions. These differences were categorized and suggested as arguments through 'a family-alternative relationship', 'emotional bond' and 'participation'. Based on the results, the conclusions presented the implications needed for alcohol-dependent homeless people.

• Steel and Composite Structures
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• v.44 no.6
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• pp.803-816
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• 2022

Composite materials are effective in forming externally bonded reinforcements which find applications related to existing structures repair, attributed to their high strength-to-weight ratio and ease of installation. Among various composites, fibre reinforced polymers (FRP) have somewhat been largely accepted as a commonly utilized composite for such purposes. It is only recently that steel fibres have been considered as additional members of the FRP fibre family, intuitively termed as steel reinforced polymer (SRP). Owing to its low cost and permissibility of fibre bending at sharp corners, SRP is rapidly becoming a viable contender to other FRP systems. This paper investigates the bond behaviour of SRP-concrete joints with different bonded lengths (50, 75, 100, 150 and 300 mm) and widths (15, 30, 40, 50, and 75 mm) using single-lap shear tests. The experimental specimens contain SRP strips with a fixed density of steel fibres (0.472 cords/mm) bonded to the face of concrete prisms. The load responses were obtained and compared in terms of corresponding load and slip boundaries of the constant region and the peak loads. The failure modes of SRP composites are discussed, and the range of effective bonded length is evaluated herein. In the end, a new analytical model was proposed to estimate the SRP-concrete bond strength using a genetic algorithm, which outperforms 22 existing FRP-concrete bond strength models.

• Korean Journal of Agricultural Science
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• v.35 no.1
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• pp.11-17
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• 2008

This study was conducted to isolate polyacetylenes from the Acanthopanax senticosus and to identify the chemical structure of the polyacetylenes by UV, IR, $^1H$-NMR and $^{13}C$-NMR. One of the liposoluble materials was extracted with petroleum ether. Polyacetylene compounds were collected through solvent fractionation at silica gel column chromatograph. The HPLC was used for the semi-preparative separation IR spectra of fraction 5 showed triple bonds at $2256cm^{-1}$ and double bond at $1654cm^{-1}$, respectively, $^1H$-NMR spectra of Fraction 5 showed the double bond at 5.35-5.48 ppm. Triple bond at 64.0. 71.2, 74.2, 80.2 ppm and double bond at 121.89, 133.0 ppm were observed in the $^{13}C$-NMR spectra.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.18 no.3
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• pp.262-269
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• 2006

Formaldehyde and total volatile organic compounds (TVOC) from building materials have been known as main causes of IAQ problem in Newly-Constructed Multi-Family Houses. Because Multi-Family Houses are built in large quantities in a similar manner, inappropriate selection of building materials and method will detrimental affect IAQ. This research aims to identify major causes of Indoor Air Pollutants in Multi-Family Houses, by constructing Mock-Up & One-Room House. As a result, self leveling concrete, door, and furniture construction is a major cause of indoor formaldehyde increase, and tile bond is TVOC, and urethane water proof is Etylbenzene, and Xylene.