• Parasites, Hosts and Diseases
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• 제51권3호
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• pp.357-361
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• 2013

Several epidemiological surveys have reported the prevalence of Toxoplasma gondii infection in stray cats in Korea, but little information is available on T. gondii infection in household cats. The aim of the present study was to assess the prevalence and risk factors of T. gondii infection among household cats reared in Seoul, Korea. A total of 474 blood samples were collected from clinically healthy household cats. All samples were tested using ELISA and PCR. The risk factor analysis was based on a questionnaire filled out by the owners. The overall positive rate for ELISA and PCR assays was 2.2% (10/437) and 2.1% (10/474), respectively. With regard to the origin of cats, the positive rates among cats adopted from the animal shelter and veterinary clinic for stray cats were significantly different (P<0.05). Our study demonstrated that the positive rate of T. gondii infection in household cats was low and that this low prevalence was assumed to be associated with keeping the cats indoors and restriction of eating raw food and uncooked meat. Therefore, we suggest that the owners check the origin of the cats prior to adoption to prevent infection of other animals, including humans.

• 경영정보학연구
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• 제22권4호
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• pp.115-134
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• 2020

기존의 디지털 콘텐츠에 대한 지불 의사를 고려한 연구들은 대부분 고객 요인과 개인 수준에 중점을 두어 진행되었다. 이런 한계를 보완하기 위해, 본 연구에서는 고객/미디어 요인과 개인/가구 수준의 두 가지 축을 고려하여 디지털 콘텐츠 구매에 영향을 미치는 요인을 찾기 위한 다층수준 분석을 진행하였다. 4,313가구 내 10,172명의 개인을 대상으로 분석한 결과 영화 관람, 클라우드 서비스 경험, 멀티스크린 서비스 이용 등 개인 수준의 미디어 요인이 디지털 콘텐츠 구매에 가장 큰 영향을 미치는 것으로 나타났다. 가구 수준에서는 노트북, 무선 라우터 및 태블릿의 수 등의 미디어 요인이 가구 규모나 가구 소득과 같은 고객 요인보다 더 큰 영향을 미치는 것을 확인하였다. 연구 결과를 통해 개인뿐만 아니라 가구 수준의 고객과 미디어 요인을 통합적으로 고려함으로써 개인의 디지털 콘텐츠 구매 행태에 대한 이해를 높였고, 멀티스크린 서비스 이용의 중요성을 말하였다. 또한 콘텐츠 제공 업체가 멀티스크린 환경을 활용함으로써 신규고객 유치 및 디지털 콘텐츠 판매 증진에 기여할 수 있음을 밝혔다.

• 대한가정학회지
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• 제37권2호
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• pp.127-144
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• 1999

The purposes of this study were to identify the housing maintenance cost, imputed rent fee and total housing cost of households living in rental house, to analyze the factors related to their housing maintenance cost, imputed rent fee and total housing cost and to investigate the factors contributing to total housing cost to total household income ratio. The data used for these purposes, was 97 KHPS of Daewoo Economic Research Institute. Sample size of households living in rental house, was 663. Statistics performed for the analysis were frequencies, percentiles, t-test, Lorenz cutie and Gini coefficient, Tobit analysis, OLS and Logistic analysis. The results of this study were as fellows: First, monthly cost of monthly rent & maintenance and repairs of households living in rental house with a deposit was lower than rental house, while the imputed rent fee of households living rental house with a deposit was higher than monthly rent households'And, total housing cost of households living in rental house with a deposit was higher than monthly rent households'. Second, Gini coefficient of the housing maintenance cost was 0.440, Gini coefficient of imputed rent fee was 0.362, and Gini coefficient of total housing cost was 0.291. Third, the variables related to their housing maintenance cost were family type, total household expenditure of socio-demographic characteristics and residence, type of rent, housing type of housing environmental factor. Also, the variables contributing to imputed rent fee were job type and educational attainment of household hearts, the number of family members, total household expenditure, residence, type of rent, housing type and tole number of rooms. In addition, the variables associated with total housing cost were job type and educational attainment of household head, total household income and residence, type of rent, housing type and the number of room. Finally, age, job type, educational attainment of household head, wife's employment status, the number of family members, family type, total household expenditure, residence, rent type of rent, housing type, the size of living space, and the number of room were significant variables contributing to total household cost to total household income ratio.

• 설비공학논문집
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• 제29권12호
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• pp.628-637
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• 2017

This study was conducted to present an effective control method for the common duct system to uniformly discharge volume flow rate exhausted from the kitchen and bathroom of each household in an apartment regardless of the position of household. Since the common duct system is installed vertically and the ventilator is installed in the terminal, the static pressure of each household decreases when vertical height increases. Therefore, the volume flow rate exhausted from each household is different. In order to improve such a phenomenon, a constant air volume damper shall be installed in a branch duct coupled with a common vertical duct system. The selected ventilator should also be able to handle the maximum volume flow rate considering diversity factor. Therefore, a uniform volume flow rate must be exhausted from all households where the hood is operated. This paper mainly focuses on suggestion of an optimum exhaust control method by comparing exhaust performance of each household according to the presence or absence of a constant air volume damper.

• 대한화장품학회지
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• 제40권4호
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• pp.403-412
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• 2014

효능이 우수한 신규 미백 소재 개발을 위하여, 민간 및 전통 미백 처방에 사용되어 온 오이(Cucumis sativus L.)에서 활성 물질 분획 추적 연구를 통하여 cucurbitacin B를 분리 정제하고, cucurbitacin B의 멜라닌 합성에 미치는 효과를 B16F1 멜라노마 세포를 이용해 확인하였다. Cucurbitacin B는 세포 독성을 보이지 않는 농도에서 실험한 결과, 멜라닌 생합성을 농도 의존적으로 감소시켰다. Cucurbitacin B는 mushroom tyrosinase의 활성은 직접적으로 저해하지 않았지만, 세포에 처리했을 때 세포 내의 tyrosinase의 활성을 감소시킴을 확인하였다. 또한, cucurbitacin B의 이러한 멜라닌 합성 저해의 기전 연구를 위하여, 멜라닌 합성에 중요한 단백질인 tyrosinase와 microphthalmia-associated transcription factor (MITF)의 단백질 발현을 조사한 결과, cucurbitacin B가 tyrosinase와 MITF의 단백질의 발현을 농도 의존적으로 감소시키는 결과를 확인하였다. 또한, cucurbitacin B는 자외선에 의한 피부암 발생 억제인자(tumor repressor) 및 $Wnt/{\beta}$-catenin 신호전달 과정에 대한 억제 기능이 밝혀진 WW domain-containing oxidoreductase (WWOX)의 단백질 발현을 증가시킴을 추가적으로 확인하였다. 따라서, 이상의 연구 결과를 통해, 오이에서 분리 정제된 cucurbitacin B는 멜라닌 세포(melanocytes)에서 멜라닌 합성을 저해하는 효능이 있음을 확인하였으며, 향후 피부 미백 소재로 활용될 수 있을 것으로 판단된다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2006년도 추계학술발표대회 논문집
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• pp.144-148
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• 2006

Kitchen space is one of the most dangerous places for the elderly. Modification of kitchen space for improving safety and independence for older residents is very important factor for aging -in-place. The purpose of this study wes to identify the current situation and modification of kitchen space by elderly-headed household. The sample included 108 respondents over the age 65 who consisted of elderly-couple or single person household with homeownership in Seoul. The data were analyzed by descriptive statistics. Based on the findings of the study, the present incidence and recognition of future need in kitchen modification were identified. Changes in kitchen space made tended to be nonstructural or relatively inexpensive items. In conclusion, this study suggests several ideas for improving current physical problems of kitchen space to support daily living of older residents.

• 대한가정학회지
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• 제45권10호
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• pp.45-57
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• 2007

The causes of indebted overspending were investigated by examining household expenditure patterns using the data from the 2002 Family Expenditure Survey. The five major expenditure categories were identified by factor analysis, and the six types of indebted overspending were clustered. About 28% of the indebted overspending was done out of necessity, and food, utilities, housing, and health care accounted for about 42% of the household expenditure. Luxury spending accounted for about 25% of the overspending by indebted households who spent about 24% of the household expenditure on clothing, entertainment, and private education. Cars (22%) and education (20%) were found to be other major causes of indebted overspending. Paying off debt and durable purchases were identified as the major causes of indebted overspending, but had a low frequency. Finally, the financial status of the four major types of indebted overspending households was evaluated.

• 보건의료산업학회지
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• 제14권1호
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• pp.123-136
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• 2020

Objectives: This study aimed to analyze the factors influencing the life satisfaction of retirees(n=1,919) in one-person and multi-person households using the 2015 wave of the Korean Retirement and Income Study, collected by the National Pension Service. Methods: Frequency analysis and χ2-test were performed to examine the general characteristics and relation between one-person and multi-person household retirees. Logistic analysis was conducted to examine the factors affecting life satisfaction. Results: Public pension income was a statistically significant factor affecting life satisfaction, economic, health, and life in multi-person households. Conclusions: To improve life satisfaction after retirement, selective insurance benefits are needed depending on the type of household. Moreover a policy for expanding labor market participation is needed.

• 가족자원경영과 정책
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• 제23권2호
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• pp.99-115
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• 2019

This study examined the insolvency likelihood of young debtors from the 2018 Household Financial and Welfare Survey. This study used the Household Default Risk Index (HDRI), which considers the ratio of total debt to total assets (DTA), and a total debt service ratio (DSR) to examine the insolvency level of debtors. The descriptive analyses showed no difference in frequency of households with a high probability of insolvency between those less than 35 years of age and those over 35 years of age. However, the median HDRI value for those less than 35 years of age was higher than those over 35 years of age. The multivariate analyses indicated that educational expenses for young Korean debtors was a factor that increased their probability of insolvency, while income was the only variable that decreased their insolvency likelihood.

• 대한영양사협회학술지
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• 제25권1호
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• pp.59-73
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• 2019

This study examined the possible causes of nutritional inadequacy in Vietnamese immigrant women married to Korean husbands. Qualitative in-depth interviews were conducted with a sample of 34 Vietnamese marriage immigrant women and 17 Korean spouses participating in or having experienced Nutrition Plus from four Community Health Centers in Seoul, Korea. The study results showed that the nutritional staus of the Vietnamese marriage immigrant women was affected by the unfamiliar Korean food (cultural factor), low household income (economical factor), difficulty in purchasing Vietnamese food (environmental factor), and low accessibility to nutrition support systems (social factor). The Korean husbands' nutritional status was affected by the unfamiliar Vietnamese food (cultural factor), low household income (economic factor), and irregular working conditions (social factors). Nutritional interventions as a public service to the community needs to be developed and applied. Suggestions are presented regarding the future efforts to better understand and meet the nutrition needs of intermarried couples to respond to their heterogeneous needs and deliver adequate nutrition service to ever increasing intermarried families.