• Journal of Hospice and Palliative Care
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• v.8 no.1
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• pp.45-51
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• 2005

Purpose: The purpose of this study is to examine the factors surrounding burnout of nurses caring for cancer patients. Methods: The sample of this study was conveniently selected among nurses who had hospice care experiences working in General Hospitals located in Seoul. This study was conducted by a self-administered questionnaire. Two hundred forty four questionnaires were retrieved and the response rate was 81.3%. The period of data collection was from February 25th to March 5th in 1994. Mean, standard deviation, T-test ANOVA, and multiple regression analysis were performed for statistical analysis. Results: The data showed that respondents reported to have burnout as many as 2.71 out of a 5.0 score. Bivariate analyses indicated that those who had hospice education reported to have a lower burnout than those without hospice education. Multivariate regression analyses revealed factors associated with burnout the nurses have had. They include being a Christian, higher job satisfaction, and experiences of hospice education. Hospice education reducing burnout for the nurses was observed by hierarchial multiple regression analyses, after controlling out the effect of coping methods, sociodemographic characteristics, job satisfaction, and job-related stresses on experience of burnout. This observation was not hue for physical and psychological burnout but for burnout in general and emotional one. But this was not confirmed among the nurses with type A personality. Conclusion: The findings of this study have a weakness in generalizability due to the sampling methodology used in this study. However, for the better hospice care further research with a probability sampling method are necessary.

• Nuclear Engineering and Technology
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• v.21 no.1
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• pp.18-31
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• 1989

To analyze the impact of air pollution control on electricity generation cost, a computer program was developed. POGEN calculates levelized discounted power generation cost including additional air pollution control cost for coal power plant. Pollution subprogram calculates total capital and variable costs using governing equations for flue gas control. The costs are used as additional input for levelized discounted power generation cost subprogram. Pollution output for Rue Gas Desulphurization direct cost was verified using published cost data of well experienced industrialized countries. The power generation costs for the year 2001 were estimated by POGEN for three different regulatory scenarios imposed on coal power plant, and by levelized discounted power generation cost subprogram for nuclear power. Because of uncertainty expected in input variables for future plants, sensitivity and uncertainty analysis were made to check the importance and uncertainty propagation of the input variables using Latin Hypercube Sampling and Multiple Least Square method. Most sensitive parameter for levelized discounted power generation cost is discount rate for both nuclear and coal. The control cost for flue gas alone reaches additional 9-11 mills/kWh with standard deviation less than 1.3 mills/kWh. This cost will be nearly 20% of power generation cost and 40% of one GW capacity coal power plant investment cost. With 90% confidence, the generation cost of nuclear power plant will be 32.6-51.9 mills/kWh, and for the coal power plant it will be 45.5-50.5 mills/kWh. Nuclear is favorable with 95% confidence under stringent future regulatory requirement in Korea.

• The Journal of the Acoustical Society of Korea
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• v.14 no.2E
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• pp.91-97
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• 1995

This paper describes the implementation of a multi-channel audio codec for HETV. This codec has the features of the 3/2-stereo plus low frequency enhancement, downward compatibility with the smaller number of channels, backward compatibility with the existing 2/0-stereo system(MPEG-1 audio), and multilingual capability. The encoder of this codec consists of 6-channel analog audio input part with the sampling rate of 48 kHz, 4-channel digital audio input part and three TMS320C40 /DSPs. The encoder implements multi-channel audio compression using a human perceptual psychoacoustic model, and has the bit rate reduction to 384 kbit/s without impairment of subjective quality. The decoder consists of 6-channel analog audio output part, 4-channel digital audio output part, and two TMS320C40 DSPs for a decoding procedure. The decoder analyzes the bit stream received with bit rate of 384 kbit/s from the encoder and reproduces the multi-channel audio signals for analog and digital outputs. The multi-processing of this audio codec using multiple DSPs is ensured by high speed transfer of date between DSPs through coordinating communication port activities with DMA coprocessors. Finally, some technical considerations are suggested to realize the problem of real-time operation, which are found out through the implementation of this codec using the MPEG-2 layer II sudio coding algorithm and the use of the hardware architecture with commercial multiple DSPs.

• Journal of agricultural medicine and community health
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• v.18 no.2
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• pp.121-129
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• 1993

This study was conducted to investigate the incidence and related factors of farming tool-machinery injuries developed in the Chonnam rural area in 1992. A total of 9,068 persons (4,571men and 4,497women)were selected in a stratified cluster sampling manner, and interviewed individually to complete a structured questionnaire covering farmer characteristics, duration of farm working, annual income, kind of farming tools and machinery, type of injuries and medical care. The results were as follows : 1. The incidence rate of farming tool-machinery injuries was 63 per 1,000 persons over all, 73 in males and 54 in females. The age standardized incidence rate was 69 per 1,000 persons over all, 83 in males and 65 in females. 2. The associated factors with farming tool-machinery injuries in univariate analysis were sex, age, duration of farming and monthly income. The occurrence of injuries was higher in men than in woman, and the higher in high-income group than in the low-income group. 3. More men than woman were involved in trunk injuries and treated at the large scale medical care units such as hospitals, and they paid much higher medical fees. 4. The complaint rates for each item of farmers' syndrome in the injured group were higher than those of the non injured group in 'shoulder stiffness', 'sleeplessness', 'dizziness', and 'gastric fullness'. 5. When multiple logistic regression was applied to farming tool-machinery injuries, the significant variables were farmer's syndrome, age, and duration of farming in both males and females.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.5A
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• pp.432-440
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• 2011

For the 4th generation mobile communication, LTE-advanced system needs the broad frequency band up to 100MHz for providing the data rate of maximum 1Gpbs. However, it is very difficult to secure the broad frequency band in the current frequency allocation situation. So, carrier aggregation was proposed as the solution, in which several fragmented frequency bands are used at the same time. Basically, multiple parallel receivers are required to get the information data from the different frequency bands but this conventional multi-chain receiver system is very inefficient. Therefore, in this paper, we like to study the single chain system that is able to receive the multi-band signals in a single receiver based on the time division multiplexing (TDM) reception method. This proposed TDM receiver efficiently manage to receive the multi-band signals in time domain and handle the baseband signals with one DSP board. However, the serious distortion could be generated by the sampling timing offset (STO) in the TDM-based system. Therefore, we like to analyze STO effects in the TDM-based system and propose a compensation method using estimated STO. Finally, it is shown by simulation that the proposed method is appropriate for the single chain receiver and show good compensation performance.

• The Journal of Korean Academic Society of Nursing Education
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• v.7 no.1
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• pp.143-156
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• 2001

This is a survey in order to provide basic information for smoking cessation teaching as investigate adolescent smoking, stress, family function and vital power. Data collection was done at the high school(12 class) and middle school(12 class) with quota sampling during 2 weeks from October 27, 2000. in the metropolitan area of Taegu. Total subjects of this study were 1710 students. The instruments for this study were the Life Event Checklist, Family APGAR, and vital power item among in the SF-36. Frequency, percentage, t-test, ANOVA, and multiple logistic regression by SPSS/PC Win Ver7.5 program were used to analyze the data. The results of this study were as fellows; 1) The subjects of this study was consisted with middle school student (876, 51.2%) and high school students. The students that they have used smoking at past or current smoker was reported 18.9%. Most of the smoking adolescents reported that they started smoking during middle school age, and there were more smoking rate among vocational high school students than academic high school students. 2) There were more stress among high school, men, and vocational high school. In aspect of family function, there were reported high score among women and middle school. At the vital power, there were reported more score among men students than women students. 3) Current smokers were more likely than nonsmokers to report more stress, low family functioning. 4) In order to identify predicting factor for adolescent smoking, family function and stress were tested significant variables statistically.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.8
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• pp.3983-3988
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• 2016

Background: Cervical cancer though preventable is still the leading cause of cancer death among women secondary to breast cancer. Persistent infection with HPV has been causally linked to the disease. A school based HPV vaccination program was introduced in late 2010 in Malaysia and nurse support is essential for its success. Objectives: To determine nurses knowledge and attitudes about HPV infection and its vaccines, and factors associated with their knowledge. Materials and Methods: This cross-sectional study was conducted among nurses working at primary health clinics in Kelantan from mid-June till the end of July 2014. Its involved 330 nurses selected through multistage random sampling. A validated self-administered questionnaire consisting of 11 items for the knowledge domain and eight items for the attitude domain was used. Results: The response rate of the study was 93.7%. The mean knowledge and mean attitude (SD) scores were 5.37 (1.76) and 29.8 (3.51) respectively. Only 24% knew that HPV is the most common sexually transmitted infection and 67% correctly answered that Gardasil vaccine can protect against four types of HPV. Nearly 60% of participants wrongly answered that HPV vaccines cannot be offered to sexually active women. Likewise, 70.9% participants were not aware that HPV vaccine may be appropriate for females aged 9 through 26 years. Though 90% of participants believed that the vaccine is safe, nearly half of them were unsure about efficacy. From multiple linear regression analysis, among the factors tested only participant's level of education showed a statistically significant association with the HPV knowledge score (p <0.001). Conclusions: This study indicates nurses have favorable attitudes towards HPV vaccination; however they have significant knowledge deficit and major misunderstanding in critical knowledge items. Among the factors tested, nursing qualification is the only factor that is significantly associated with the nurses knowledge score.

• Health Policy and Management
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• v.19 no.4
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• pp.78-97
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• 2009

This study examined the factors related to family caregiver satisfaction with institutional care services for beneficiaries under the Public Long-Term Care Insurance(PLTCI) system. Determining what contributes to family caregiver satisfaction is a critical step toward implementing effective quality improvement strategies. A national cross-sectional descriptive survey was conducted from November to December 2008, using proportionate quota sampling based on the location and level of Long-Term Care of the beneficiaries. Total 1,745 family caregivers wrote informed consents and 733 (response rate 42%) completed questionnaires, which included caregiver characteristics, organizational resources, primary objective and subjective stressors, perceived quality of services, and family caregiver satisfaction. Family caregivers were satisfied overall with institutional care. In multiple regression analysis, there was a statistically significant difference in degree of family caregiver satisfaction according to caregiver characteristics(relationship to beneficiary), primary objective stressors (insurance type of beneficiary), perceived quality of services(respect to family caregivers' idea, ADL support, expertness of staff, careful concern of staff, fulfillment of client's requests, and safety of institution's environment). In public long-term care, satisfaction efforts are in an early stage of development. This study is meaningful as the first attempt to measure family caregiver satisfaction with institutional care for beneficiaries under the PLTCI system, and to identify factors affecting the satisfaction. Among the identified factors, the policy makers, the insurer, and the providers need to pay attention to perceived quality of services, in particular, to improve customer satisfaction. Our findings can provide quality care improvement initiatives in the public long-term care setting.

• Korea-Australia Rheology Journal
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• v.21 no.3
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• pp.155-160
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• 2009

Micropore filtration of dilute red blood cell (RBC) suspensions is a widely known method for determining red blood cell deformability. Use of this method for cells from various laboratory animal species does require considering the effects of the cell size to pore size ratio and of suspension hematocrit. In general, previous animal studies have utilized 5% hematocrit suspensions and five micron pores, and thus conditions similar to human clinical laboratory practice. However, when used for repeated sampling from small laboratory animals or for parallel multiple samples from different sites in large laboratory animals, the volume of blood sampled and hence the hematocrit of the test suspension may be limited. Our results indicate that hematocrit levels yielding stable values of RBC pore transit time are pore size and species specific: three micron pores = $2{\sim}5%$ for dog and $3{\sim}5%$ for rat; five micron pores $3{\sim}5%$ for dog and $1{\sim}5%$ for rat. An analytical approach using a common expression for calculating transit time is useful for determining the sensitivity of this time to hematocrit alterations and hence to indicate hematocrit levels that may be problematic.

• Journal of Community Nutrition
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• v.1 no.2
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• pp.81-87
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• 1999

Body mass index(BMI) is recognized as one of the most useful indexes for adiposity in children and adults. This study was conducted to provide information on BMI distribution by age and sex in Korean children, and to identify sociodemographic factors that affected BMI among children. The study was conducted on 2376 children(boys 1184, girls 1192) living in a middle-size city in Korea. Subjects were selected from the primary schoolchildren in grades 1-6 using the two-stage sampling method. Their mean age was 9.4 years. The percentile of BMI tended to increase as age increased in both sexes. The 85th percentile for boys, aged 6-12 years, was 19.8kg/㎡, and the 95th percentile was 22.5kg/㎡. The 85th percentile for girls, aged 6-12 years, was 18.9kg/㎡, and the 95th percentile was 21.5kg/㎡. Multiple regression analysis was carried out to predict BMI from percent ideal body weight (PIBW), age and sex. After adjusting PIBW and age, BMI for boys was 0.062kg/㎡ lower than that for girls. One year of age increased BIM by 0.55kg/㎡. The prevalence rate of overweight and obesity based on PIBW was 15.8% and 15.0% for boys, and 14.0% and 11.0% for girls, respectively. Demographic factors such as sex, age, and parents' obesity influenced children's BMI. After adjusting for sex, age and parents' BMI, the presence of another children in family, and mother's employment status showed a strong effect on children's BMI. The results suggest an age-sex specific BMI distribution of Korean children. The present study also provides direct evidence of a correlation between early life environmental factors, such as presence of siblings or mother's employment, and BMI level in Korean children.