• Journal of Preventive Medicine and Public Health
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• 제54권6호
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• pp.395-403
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• 2021

Objectives: Previous studies have shown that participation in social activities (SA) can prevent cognitive decline (CD) and that living arrangements (LA) can affect cognitive function. This study aimed to evaluate the effects of SA and LA on CD, as well as their interactions, using longitudinal data. Methods: Data were used from the 2006-2018 Korean Longitudinal Study for Aging, which followed 10 254 adults older than 45 years over a 12-year period. CD was defined as a ≥4-point score decrease in the Mini-Mental Status Exam over 2 years. We developed an extended Cox proportional hazards model for time-dependent covariates to estimate the hazard ratio (HR) of CD in 4 groups: (1) socially active and living with others, (2) socially active and living alone, (3) socially inactive and living with others (SILO), and (4) socially inactive and living alone (SILA). The model was stratified by gender and adjusted for important confounders. Results: The HR of CD was significantly higher in the SILO group in men (HR,1.36; 95% confidence interval [CI], 1.08 to 1.78) and in the SILA group in women (HR, 1.72; 95% CI, 1.08 to 2.75). However, the interaction term for gender was not significant. Conclusions: Among socially inactive elderly adults, the HR of CD was elevated in men who lived with others and in women who lived alone, although the interaction term for gender was not significant. Socially inactive men who live with others and socially inactive women who live alone are particularly encouraged to participate in SA to prevent CD.

• 농촌계획
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• 제28권2호
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• pp.61-69
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• 2022

This study categorizes and identifies the characteristics of the living areas of rural dwellers through cluster analysis using mobile floating population data. As a result, rural areas in Korea were classified into 34 rural living areas, and 5 types of rural living areas were derived. Although the 'Suburban in Mega City Areas' and 'Suburban in Regional City Areas' derived through this study have advantages in terms of accessibility to large cities, they are important for rural space management as they can undermine the unique values of rural areas due to urban expansion. In addition, 'Unclassified areas' have low accessibility in the national space, and there is a need to provide their own settlement environment. The population of rural areas in Korea exhibited a phenomenon of widespread migration. This means that rural residents who depend on metropolitan areas are provided with SOC beyond administrative boundaries. Therefore, there is a need to move away from establishing a homogeneous regional plan that does not consider population movement. Through this study, it was possible to understand the rural living area formed by the population movement occurring in the rural area. This is different in that the existing studies classified the national space based on the interconnectedness between regions, beyond the limitations of categorizing regions with homogeneous characteristics based on endogenous indicators. At this point in time when the need for a rural space plan is emphasized, it is important to understand the living area of rural dwellers and to design an appropriate rural plan. Therefore, the establishment of a rural plan suitable for the region using the results of this study can increase the efficiency of the project for revitalization of the rural area and contribute to the creation of an attractive national space.

• 인터넷정보학회논문지
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• 제24권4호
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• pp.65-76
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• 2023

This paper identifies the aspects of living environment elements (PM^2.5, PM¹⁰, Noise) throughout Seoul and the urban characteristics that affect them by utilizing the big data of the S-Dot sensors in Seoul, which has recently become a hot topic. In other words, it proposes a big data based urban computing research methodology and research direction to confirm the relationship between urban characteristics and living environments that directly affect citizens. The temporal range is from 2020 to 2021, which is the available range of time series data for S-Dot sensors, and the spatial range is throughout Seoul by 500mX500m GRID. First of all, as part of analyzing specific living environment patterns, simple trends through EDA are identified, and cluster analysis is conducted based on the trends. After that, in order to derive specific urban planning factors of each cluster, basic statistical analysis such as ANOVA, OLS and MNL analysis were conducted to confirm more specific characteristics. As a result of this study, cluster patterns of environment elements(PM^2.5, PM¹⁰, Noise) and urban factors that affect them are identified, and there are areas with relatively high or low long-term living environment values compared to other regions. The results of this study are believed to be a reference for urban planning management measures for vulnerable areas of living environment, and it is expected to be an exploratory study that can provide directions to urban computing field, especially related to environmental data in the future.

• Journal of Oral Medicine and Pain
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• 제8권1호
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• pp.5-31
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• 1983

Author studied the changes of experimental bite marks using a special apparatus which was equipped with adults human resin dental model(in accordance with the time elapsed). The experimental bite marks were made in the forearm of 20 healthy men and in the buttock of 10 Durac pigs with various pressure. In making the experimental bite marks, the left forearm was pressed with a load of 70kgs and 130kgs for 3 seconds, and 5 of the 10 pigs were sacrigiced immediately after making the bite marks. Through visual examinations, photographs and rubber base impressions of bite marks, following results were obtained : 1. The durations of measurable indentation of the experimental bite marks in the forearm of living human subject were depended upon the degree of the pressure and the length of the pressure time applied in making the bite marks. 2. As a physiological responds to a physical stimulus of biting, indentation, bruising, edema and subepithelial bleeding were observed in the experimental bite marks in the forearm of living human. And the experimental bite marks in the buttok of pigs which were sacrificed immediately after making the bite showed only indentation and subepithelial bleeding in addition to postmortem changes. 3. The duration of measurable indentation of the experimental bite marks in the buttock of pigs which were sacrificed immediatly after making the bite were much longer than those of the living pigs. 4. All of the measurements of the experimental bite marks were not matched completly with those of the model which was used in making the bite marks.

• 한국지역사회생활과학회지
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• 제24권3호
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• pp.369-379
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• 2013

The purpose of this study was to investigate the prevalence rate of atopic dermatitis (AD) and indoor risk factors of AD in school-aged children living in Changwon, which is one of the largest industrial cities in Korean. Data were collected from 2,118 children in 12 elementary schools in Changwon city. A cross-sectional questionnaire based on the Korean Version of the ISAAC (International Study of Allergy and Asthma in Childhood) was employed to survey the $1^{st}$ and $4^{th}$ year elementary students from the 12 elementary schools in Changwon. The life time and last 12-month prevalence of itchy eczema were 20.6%; 70.5% in the elementary children. The life time and last 12-month prevalence of AD diagnosis were 28.8%; 12.6% in the elementary children. There was only one elementary school that was abnormal in the levels of particulate matters (PM), and $Co_2$. Multivariate logistic regression analysis revealed that risk factors for AD were BMI, the levels of PM, $Co_2$, CO, $No_2$, $O_3$, Ethylebenzene, and Xylene. This study could be used to manage possible risk factors that are related to the prevalence of AD and develop the strategies for prevention of AD.

• 건축역사연구
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• 제6권3호
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• pp.89-108
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• 1997

This study has been researched mainly about the gradual changing patterns of site plan and plan layout of 17 sampling traditional houses in kyungpuk province during the time period of 1877-1945. The objective of this study is to closely examine the characteristics of locality and trend of the times. Survey and Measured drawing, personal interviews with clients has been carried out and the result is as down below; 1.The certain changes have shown that the furnace in sarangchae(outer wing for men) in ㅁ shaped and ${\ulcorner}$ ${\lrcorner}$ shaped houses served only for that purpose and inner gate has been built in sideward of sarangchae. 2.As living standard was upgraded storage space and size of the rooms got bigger. On the other hand, spacial formation was emphasized by its function accordding to house activities and living circulation because the family members in direct line became reality of the time. 3.The modernistic thought of rationalism and convenience are well expressed in the plan layout and house living as a whole.

• 한국지역사회생활과학회지
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• 제20권2호
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• pp.205-221
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• 2009

My concern was to explore how the Korean 'wild geese families' functioned to maintain 'familyhood' in spite of spatial separation by using a qualitative approach. I used personal narratives from eleven 'geese mothers' living in the United States. Family paths across time were analyzed to understand their complicated nature. Respondents adopted some coping strategies to obtain the flexibility and the stability for relocating their transnational lives. These were 1) communications, 2) relocation of household work, and 3) reinterpretation of 'sacrifice.' It seemed that their family paths become either the continuous type (prolong their stay) or the discontinuous type (not prolong their stay). These were shaped by complex individual, familial, and social forces which affected differently according to the steps of family life cycles. Therefore, this study showed that the Korean 'wild geese family' did not move toward the uni-direction with the same experiences and nature. More importantly, it is noteworthy to acknowledge that the prevalence of 'wild geese family' reveals the dynamic interactive nature of the family, i.e., actively responding to the changes and challenges from the diverse circumstances. It is inferred that the social and cultural factors such as the class mobility, the education system, and the values may influence the family life style.

• The Journal of Korean Physical Therapy
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• 제21권2호
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• pp.31-38
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• 2009

Purpose: This study was examined the effect of training using a Virtual Reality System on the sitting balance and Activities of Daily Living for patients with a spinal cord injury. Methods: The subjects were divided into an experimental (6 persons) and control group (5 persons). The experimental group trained the 5 programs, three times per week for 6 weeks using the Virtual Reality System and five days for week using conventional physical therapy. The control group trained five days for a week using conventional physical therapy. Results: The difference in the mean Spinal Cord Independence Measurement (SCIM) score in the experimental and control groups was increased to 8.33 and 6.60 (p=0.79), respectively. The difference in the mean functional reaching test in experimental and control group increased to 4.21 and 1.09 (p=0.25), respectively. The difference in the mean sitting time in experimental and control group increased to 41.05 and 10.33 (p=0.66), respectively. There was a difference in the mean of all variances but these differences were not statistically significant. Conclusion: These results suggest that training using the Virtual Reality System increased the SCIM, functional reaching test and sitting time in people with a spinal cord injury.

• 대한건축학회논문집:계획계
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• 제35권4호
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• pp.53-60
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• 2019

This study intends to examine the changes found in the unit floor plans of the apartments built in Beijing from 1979 to 2018. For the 3 - bedroom type apartments, 40 unit floor plans were collected, and the changes of integration values of each space were analyzed periodically in four phases. The unit floor plans are analyzed in the context of the Space Syntax Model and compared to the lifestyle and societal changes in China. The results of the study indicate the followings: As time went by, the living room and the dining room were separated from each other with the increasing area of the apartment unit floor plans. The function of the integrated living room was dispersed, and the integration of the living room and the dining room decreased with the change of time. In the third phase, the dining room occupied the center of the unit floor plans with the highest integration value; Chinese people prefer to place the kitchen in the relatively deep place in order to prevent oil and smoke caused by their cooking habits like stir-fry; The privacy of the master bedroom has been strengthened.

• 한국지역사회생활과학회지
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• 제23권1호
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• pp.79-88
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• 2012

To evaluate the possibility of low-salinity of traditional fermented food, we investigated quality characteristic of low-salted Yacon Jangachi using soybean sauce with sugar or vinegar for 50 days. Sugar content, titration acidity, and salinity of all Yacon Jangachi was increased as storage time increased. All of the Yacon Jangachi had less than 3.0% salinity. Especially, the salinity of the Yacon Jangachi with sugar and vinegar was the lowest during storage time. The L value was decreased as storage time increased but the results of the a and b values were reversed. Cutting force was not significant among samples and storage periods. In the results of sensory evaluation, preference of all samples were increased as storage time increased. The preference of color was not significant among samples from 30 days but the taste was reversed. The preference of flavor was significant between samples in 40 days, texture was not significant during storage time. Overall preference was not significant after 30 days, which suggested that Yacon Jangachi using soybean sauce retains overall preference in steady level from 30 days. Yacon Jangachi using soybean sauce showed the highest preference when produced with sugar and vinegar.