• 간호행정학회지
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• 제5권3호
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• pp.415-424
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• 1999

The purpose of this study was to estimate the population requiring nursing home services for frail elders who received home care nursing services. This study identified the need of nursing home services and the proportion of elders over 60 years of age requiring nursing home services according to the admission eligibility including items with intensity of home care nursing services and the criteria for screening of patients requiring home care nursing services. In this study, survey research design was conducted. A total of 49 home care nurses were collected. They were asked to assess the need of nursing home services based on items with intensity of home care nursing services and the criteria for screening of patients requiring home care nursing services. Using secondary data analysis from the survey on 'The Evaluation of Home Care Nursing Service Program in 1994 in Korea', the proportion of elders requiring nursing home services was estimated. The estimated numbers and proportion of frail elders requiring nursing home services were 169 (86.2%) aged persons among community dwelling elders based on admission eligibility. However, the proportion of aged persons was 68% using the only criteria for screening of patients requiring for screening home care nursing services.

• 응용통계연구
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• 제19권2호
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• pp.217-230
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• 2006

본 연구에서는 낮은 이항비율에 관한 구간추정을 위해서 어떤 신뢰구간이 바람직한지를 살펴보았다. 실제 적으로 희귀질병, 특정 산업재해율, 그리 고 기생충에 관한 실태조사를 위해서 대규모 표본조사가 실시된다. 표본 규모가 크고, 0 < p ${\leq}$ 0.1인 상황에서 모비율 p의 추정에 바람직한 신뢰구간을 살펴보았다. 위의 조건에서 6가지의 신뢰구간들에 대해 평균포함확률과 평균제곱오차의 제곱근, 그리고 평균기대폭을 사용한 결과 Mid-p 신뢰 구간이 가장 바람직하고 다음으로 AC, score와 Jeffrey 신뢰 구간들이 적절한 것으로 밝혀졌다.

• Journal of Preventive Medicine and Public Health
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• 제33권3호
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• pp.280-284
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• 2000

Background : Congenital rubella syndrome (CRS) can be controlled by vaccination. Because rubella is typically a childhood disease, occurring predominantly in the 5 to 14 year age group, female school teachers nay be a high-risk population for CRS. Objectives : To determine the prevalence rate of rubella antibodies in school teachers of child bearing age. Methods : The study population consisted of primary, middle and high school teachers of child bearing age. The subjects were aged 35 years and younger, and consented to immunoglobulin (Ig) level testing using the ELISA method. Results : The positive rate of IgG was 77.9% in the study subjects (n=314). Sixty-three teachers (21.4%) were susceptible to rubella infection. Thirty-seven teachers (11.8%) had a history of rubella vaccination. Among the female teachers with no vaccination history, the proportion of negative IgM and IgG was 21.7%, and the proportion of positive IgM was 2.9%. Seventy-nine percent of the study subjects did not know that they should not become pregnant for three months after receiving the rubella vaccine. Conclusion : School teachers of child bearing age should be considered a high risk group for CRS, and should be vaccinated if they are found to be seronegative.

• Journal of Nutrition and Health
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• 제17권3호
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• pp.236-241
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• 1984

In order to make clear the relationship between sample design and sample survey in community, it was conducted research on sample design for National Nutrition Survey in 1983. In this paper it was tried to analize the data based on The Report of a Settled Population, 1981 conducted by National Bureau of Statistics Economic Planning Board. The sample was basically using stratified two-stage sampling with systematic sampling of Ban or Li as administrative unit. The population represents the whole nation excluding Jeju-do because of budget. The selection of sampling unit and sampling procedure was as follows. 1) Stratify the nation-wide area in 20 sections according to administrative districts. 2) Determine the sample size in each section according to equal proportional rate (1 / 8040) and to about 1,000 households in the sample. 3) Select the 25 sampling units by section according to households proportion. 4) Select the 10 households at random from each Ban or Li according to equal probability proportion as the final sampling unit. Using the procedure, it was sampled 1,000 households for National Nutrition Survey in 1983.

• 환경영향평가
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• 제13권3호
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• pp.137-151
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• 2004

Many of today's environmental problems are regional in scope and their effects overlap and interact. The purpose of this paper is to developed a simple method for an integrated assessment of environmental conditions across the Mid-Nakdong River Region, by combining data on land use, impervious cover, roads, streams, riparian areas, forest patches, population, pollutant loadings, soil erosion and topography. A cluster analysis was used to identify groups of sub-watersheds with similar environmental characteristics. The mean value for each group was used to find watershed that may be more vulnerable to future environmental degradation. Watersheds in cluster I and II had high amount of forest, but the amount of riparian vegetation was low. Watersheds in cluster III, which located in the middle Geumho River and the main course of Nakdong River, had a greater proportion of their agriculture, a greater proportion of agriculture on steep slopes, and less forest adjacent to streams. Watersheds in cluster IV and V were in the most urbanized areas of the region. The principal adverse impacts for watersheds in this group were high scores for urban area, impervious cover, pollutant loadings, population density, forest fragmentation, and low amounts of forest and riparian forest cover. Notwithstanding the exploratory nature of cluster analysis, it appears to be a useful tool for grouping watersheds with similar environmental characteristics.

• Communications for Statistical Applications and Methods
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• 제16권3호
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• pp.501-509
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• 2009

Recently the interval estimation of binomial proportions is revisited in various literatures. This is mainly due to the erratic behavior of the coverage probability of the well-known Wald confidence interval. Various alternatives have been proposed. Among them, the Agresti-Coull confidence interval, the Wilson confidence interval and the Bayes confidence interval resulting from the noninformative Jefferys prior were recommended by Brown et al. (2001). However, unlike the binomial distribution case, little is known about the properties of the confidence intervals in finite population sampling. In this note, the property of confidence intervals is investigated in anile population sampling.

• 한국토양동물학회지
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• 제9권1_2호
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• pp.16-23
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• 2004

본 연구는 서부 호주의 Durokkopin 자연 보호 구역에 서식하고 있는 흰개미의 개미집과 서식밀도를 조사하기 위해 수행되었다. 조사결과 Woodland에서의 흰개미 집의 분포와 서식밀도가 Shrubland보다 월등히 높았으며, 일부 흰개미집의 경우 조사기간인 14개월 동안 크기가 감소한 것으로 조사되었으나, 일반적으로 조사기간 중 흰개미 집의 크기 변화는 거의 없었으며, 계급별 구성비율 또한 거의 변화가 없는 것으로 조사되었다. 그러나, 흰개미 개체수는 개미집이 작을수록 증가율이 높은 것으로 조사되었다. 본 연구결과를 토대로 종합해 보면, 두 조사지역 중 Wooldland가 Shurubland보다 공시 흰개미인 Drepanotermes tomminensis (Hill)에 보다 나은 서식처를 제공하는 것으로 사료된다.

• Parasites, Hosts and Diseases
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• 제55권5호
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• pp.465-472
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• 2017

Recent trends of malaria in Thailand illustrate an increasing proportion of Plasmodium vivax, indicating the importance of P. vivax as a major causative agent of malaria. P. vivax malaria is usually considered a benign disease so the knowledge of this parasite has been limited, especially the genetic diversity and genetic structure of isolates from different endemic areas. The aim of this study was to examine the population genetics and structure of P. vivax isolates from 4 provinces with different malaria endemic settings in Thailand using 6 microsatellite markers. Total 234 blood samples from P. vivax mono-infected patients were collected. Strong genetic diversity was observed across all study sites; the expected heterozygosity values ranged from 0.5871 to 0.9033. Genetic variability in this study divided P. vivax population into 3 clusters; first was P. vivax isolates from Mae Hong Son and Kanchanaburi Provinces located on the western part of Thailand; second, Yala isolates from the south; and third, Chanthaburi isolates from the east. P. vivax isolates from patients having parasite clearance time (PCT) longer than 24 hr after the first dose of chloroquine treatment had higher diversity when compared with those having PCT within 24 hr. This study revealed a clear evidence of different population structure of P. vivax from different malaria endemic areas of Thailand. The findings provide beneficial information to malaria control programme as it is a useful tool to track the source of infections and current malaria control efforts.

• Asian-Australasian Journal of Animal Sciences
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• 제18권4호
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• pp.453-457
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• 2005

The genetic variations in three major river populations viz. the Halda, the Jamuna and the Padma of the Indian major carp, Catla catla were analyzed by Random Amplified Polymorphic DNA (RAPD) markers. Four decamer primers were used for amplifying DNA of 10 individuals from each population. The proportion of polymorphic loci and the gene diversity estimates were 59.4 and 0.20 for the Halda, 37.5 and 0.14 for the Jamuna and 46.9 and 0.16 for the Padma populations respectively indicating the existence of a relatively high level of genetic variation in the Halda river population. The inter-population similarity indices, gene flow and genetic distance values indicated that the Jamuna-Padma population pair of catla was genetically closer than the Halda-Jamuna and the Halda-Padma population pairs in compliance with the geographical distances among them. The coefficient of gene differentiation ($G_{ST}$=0.13) reflects some degree of genetic differentiation among three populations of catla studied. The data suggest that the RAPD technique could be used to discriminate different river populations of catla.

• 한국환경과학회지
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• 제8권5호
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• pp.587-592
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• 1999

The purpose of this study was to identify the controlling factors to construct tidal flat ecosystems having similar characteristics as natural ones. We transplanted the soil in a constructed tidal flat to a natural one and vice versa. Parameters monitored after these transplantations were silt content, organic matter, bacterial population and oxidation-reduction potential. Moreover, the relationship among silt content, organic matter and bacterial population was investigated by laboratory column experiment. The silt content, organic matter, bacterial population and vertical profile of oxidation-reduction potential in the soil transplanted from the constructed tidal flat to the natural one changed to similar values to those in the natural one. On the contrary, all the parameters for the soil transplanted from the natural tidal flat to the constructed one changed to similar values as those in the constructed one. The silt contents in thses two transplanted solis were in proportion to the organic carbon contents and bacterial population. Similarly, the bacterial population in laboratory column experiment increased with the increase in silt and organic matter contents. It seemed to be important to select a place to enhance accumulative of silt and/or to maintain the silt content by hydrodynamic control of seawater in order to construct a tidal flat having similar characteristics as natural one.