• Journal of the Institute of Electronics Engineers of Korea TC
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• v.44 no.5
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• pp.76-84
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• 2007

In this paper, we measured the propagation characteristics of I-UWB channel in time domain and in frequency domain. The measurements carried out in apartment environment while furniture and household electric appliance. Typical indoor scenarios, including line-of-sight(LOS), non-line-of-sight(NLOS) in room-to-room, within-the-room. A transmitting and receiving antenna is a biconical antenna. Results for indoor propagation measurements are presented for power delay profiles(PDP). We extracted the channel characteristic parameters from a power delay profile. Finally, we designed I-UWB channel model in indoor environment, and I-UWB simulator. The results of simulation shows BER characteristics below $10^{-5}$ for SNR over 20[dB].

• Korean Journal of Childcare and Education
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• v.9 no.3
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• pp.189-207
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• 2013

This study was to examine current situations and factors related to private learning expenses. A household survey involving a nationally representative sample of 976 households and 1,648 3-5 year old children was conducted. The questionnaire was comprised of two parts; the first part investigated the demographic and socio-economic status of the parents. The second part inquired as to the type and cost of private education, during the month of June, 2012. Data were analyzed by chi-square, one-way ANOVA and multiple regression analyses. The findings of the study were: First, 86.7% of parents of pre-school children used private learning. Second, private learning expenses were estimated to be 129,700 Won for 3~5 year old children. And older children and children from higher income and full-time homemaker families used more private learning. Thirds, Income and the child's age affected private learning expenses. Policy measures were suggested based on the findings as follows: Institutional infrastructure should be established: Strong support for national curriculum and the development and dissemination of special programs is needed.

• Korean Journal of Community Nutrition
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• v.16 no.1
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• pp.75-85
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• 2011

The purpose of this study was to investigate basic data on the degree of parents' recognition and satisfaction with the use of environment-friendly agricultural products. The conclusions of this study are as follows. The survey on the use of environment-friendly products in households showed that 68.7% of the respondents used environment-friendly products at home. The frequency of purchasing organic products by household consumers showed that 25.1% of the respondents bought organic products one to two times per week. The most popular items of the environment-friendly agricultural products used were vegetables, comprising 63.9%. The households with more than 3,000,000 won of monthly income tended to consume more domestic livestock products (p < 0.05). In comparison to general agricultural products, environment-friendly agricultural products users showed higher satisfaction level with a better quality in term of safety, quality, nutrition, taste, appearance, diversity and price. The degree of satisfaction with safety was the highest ($3.8{\pm}0.68$), and price showed the lowest ($2.76{\pm}0.79$). The degree of parents' recognition of the governmental support for environment-friendly agricultural products showed that those who were aware of the supporting policy were 44.5%, but 55.5% of them didn't know about the fact that 46.6% of the respondents agreed that environment-friendly agricultural products should be used in more than 50% of the foods used for school food service. The respondents pointed out that vegetables (45%) sprayed with pesticide are the most urgent food item that need to be replaced by environment-friendly farm products.

• Korea journal of population studies
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• v.5 no.1
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• pp.167-186
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• 1982

Financial barrier is well known as a determinant of the perceived need for and utilization of medical care in urban areas. This study aims to; a) estimate the levels of the perceived need for and utilization of medical care, b) analyze the reasons for not receiving medical care, and c) determine factors affecting the levels of need and utilization, and major reasons for not receiving medical care. The data of household interview survey in urban areas collected for a National Survey on Reorganization of Nationwide Health Care Delivery Network is used. An interview was conducted with a total of 2, 538 households in urban areas during a 28 day period of October through November, 1981, giving an overall response rate of 99 percent. The results show a factor of third-party payer is most influential to utilization (physician visits by patient), and living standard is a determinant to explain the variance of major reasons for not receiving medical care. Therefore, financial burden is still a major determent in utilization of medical care in urban areas. Improved level of living standard and expanded coverage of the third-party payer such as health insurance and public medical assistance will increase both an overall levels of utilization of and the need for medical care in urban areas in the future. The major statistics are as follows; a) rate of the need for medical care during a 15 day period per 100 persons was 33 percent: the differential rates appeared in sex, age, living standard, and third- party payer variables, b) percent of treatment employed per 100 persons who are wanting medical care was 82: the percents were high in young ages, high levels of living standard and education, and persons covered by third-party payer, and c) economic reasons for not receiving medical care per 100 persons who are wanting medical care were occupied with 60 percent: the rates are high in old ages, low levels of living standard and persons not covered by third-party payer.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2005.11a
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• pp.351-354
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• 2005

In 2004. as a part of special housing policy for low income household, Korean government initiated 'Multiple-dwelling Purchase and Public Rental Program'(MDPPRP) to help people whose needs for appropriate housing cannot be met in private housing market. The main goal of this program was to provide the base for self support of tenants by purchasing 'Multiple-housing' in bundle and transferring them into rental housing with low price to the low income tenants. Unlike other public rental housing programs, this model program limited the length of stay in the rental housing by six years to lead tenant's self support. The purpose of this study was to evaluate the effectiveness of this model program for further expanding enforcement. For this, two groups of residents of 'multiple-dwelling purchase and public rental program' and permanent rental housing were compared and analyzed. Thirty two tenants of MDPPRP were interviewed for the study. As research methods, document review, onsite tenant interviews using questionnaire were used. As a whole, most of the tenants were satisfied with their 'multiple-dwelling' environment in physical and socio-psychological aspects.

• Research in Community and Public Health Nursing
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• v.12 no.1
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• pp.60-70
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• 2001

The purpose of this study was to analyze the relation between health behavior and public health center utilization among lower income families who earned half of the average Korean family income. The cross-sectional descriptive survey research we conducted was a nationwide randomization sampling among lower income families. The data was collected from July 12 to August 7. 1999 and the total sample was 5.819 household members 1,735 households). There were, three major findings according to these studies. 1. In health behaviors, 26.5% of respondents had a health examination. Among them, 41.5% were in a poor condition of health. In health promotion behaviors, only 37.3% of respondents were doing activities for health maintenance or promotion. 2. In the results of the public health center utilization for the past year. 57.4% of respondents visited one or more times. In addition, 46.2% of respondents wanted to use a visiting nursing service. 3. In the results of multiple logistic regression, we found that less education, larger family size, and medicaid affects more utilization of public health center. In addition, older age, living without a spouse, less education, larger family size, lower family income. and public health center usage affects requests for the visiting nurse service.

• Research in Community and Public Health Nursing
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• v.14 no.3
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• pp.520-532
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• 2003

Purpose: The purpose of this study was to identify the health status and request of community residents. This study is part of development of efficient health life enhancement programs. Methods: The subjects of this study were 586 households in a rural community and well-trained interviewers visited every household in the designated area and individually interviewed heads of households for general information and health service utilization. The data were collected using a questionnaire for seven months from March 25 to September 24, 2002. The data were analyzed using frequency. percentage by SPSSWIN (v 10.0). Results: 1. 58.9% of subjects were above sixty, and 60.8% of them were women. 2. The most serious problems they identified were health problems (45.6%), and the second was(##-was+were) economic problems(22.0%). 3. Almost half of the study population regarded themselves as healthy (46.2%). The types of illness they had were neuralgia, arthritis, hypertension, diabetes, and heart disease. 4. Most of the study population answered that they didn't do anything special for health enhancement. 5. Among medical facilities, hospitals or medical clinics (55.3%) were most commonly utilized when they were sick. 6. The highest request of the subjects was 'Home visiting service (45.4%)', and 'free treatment connected to the service of hospitals' was the second. What they needed most regarding health enhancement programs in health life enhancement centers was 'free health examination (58.2%), and heath education programs (57.7%). 7. As a result of investigating the subjects' demand for nursing services in health life enhancement center, 'the clinical examination' was the most requested, and next was 'blood pressure check', 'emergency treatment', and 'rehabilitation service', in that order.

• Journal of Family Resource Management and Policy Review
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• v.11 no.3
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• pp.1-21
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• 2007

The purpose of this study is to investigate the gender division of housework in the Choson period. The gender division in the Choson period has been considered as discriminative because women had to remain indoors and were excluded in social works. But in fact the Confucian idea, which regulated the relation between women and men, emphasized the gender difference and not gender discrimination. Actually it can be seen in genre painting of Choson period that women and men worked complimentarily indoors. So this article intends to explore the possibilities of the new analysis of the traditional gender division of housework by reviewing the paintings. As the results indicate, men in the Choson period were involved in some housework, in contrast to the common idea that they maintained their authority by not participating housework. There is also some evidence that gender division benefited women to protect their own productive territory or to satisfy their needs. So it is suggested that gender division in the Choson period should be considered as a source of power as well as a disadvantage to women. Forth, the employed mens' reemployment decision was affected from their household income, expected income after retirement, pension ownership, and attitude toward retirement. From the findings, it can be concluded that the employed mens' age, economic status, and attitude toward retirement played a important role in the process of retirement and reemployment decision making.

• Human Ecology Research
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• v.53 no.4
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• pp.433-445
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• 2015

This study develops normative scores of the Infant/Toddler version of the Home Observation for Measurement of the Environment (IT-HOME) inventory for Korean infants and toddlers. We selected 482 0- to 36-month-old infants and families by a stratified sampling procedure that considered residency, age, and gender of children. The pass rate, discrimination rate, and internal consistency were analyzed for the item analysis. Statistical validity included intercorrelation among the IT-HOME subscales, correlation between IT-HOME scores and environmental status variables, and correlation between IT-HOME and Korean Bayley Scales of Infant Development second edition (K-BSID-II) scores. Normative scores were prepared by percentile ranks. The results of this study were as follows: First, 45 items were acceptable for Korean subjects with few exceptions. IT-HOME was developed to screen unfavorable environmental factors during infancy; therefore, items such as 12, 17, 23, 39, 44 need to be retained even though they had low discriminating power. Second, IT-HOME subscales were correlated, and IT-HOME was significantly related to parents' education level, household income level, and infant' developmental levels. Third, percentile scores and the median of each IT-HOME subscales were suggested as normative scores. We discussed the normative scores of the IT-HOME to screen the quality of home environments for children aged 0-36 months in Korea, and provide the intervention basis for the at-risk population.

• Human Ecology Research
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• v.51 no.3
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• pp.307-319
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• 2013

The purposes of this study are to examine the differences of gender role identity according to general characteristics, parenting behavior, and family function, and to find out the main predictors of gender role identity, in order to further test the mediating effects of family function between parenting behavior and gender role identity among middle school students. Six hundred-fifty 3rd graders from three middle schools in Busan participated in this study. The results showed that the significant variables for predicting the masculinity of gender role identity include family cohesion, and parenting behaviors (father's reasoning, mother's over-expectation) and monthly household income, respectively. The significant variables for predicting femininity were family cohesion, and father's intrusive parenting behaviors, father's educational background and the mother's affection, respectively. The results indicated that for masculinity, family cohesion played the full mediator with the father's monitoring behavior and the partial mediator with the father's reasoning behavior. Similarly, for the mother's reasoning and affection, family cohesion played a full mediator. For femininity, the family cohesion played the full mediator with the father's affection and the partial mediator with the mother's affection. Similarly, for androgyny, the family cohesion played a role of full mediator with the father's monitoring, reasoning, affection and mother's reasoning and affection. In other words, the parents'positive parenting behaviors affected the family cohesion, and in turn, had an impact on the formation of the gender role identity.