• Title/Summary/Keyword: statistical assessment

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An Analysis of Nursing Research related to the Mother-Child Interaction in Korea (모아상호작용 관련 간호연구 분석)

  • Oh Jina;Lee Ja-Hyung
    • Child Health Nursing Research
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    • v.9 no.2
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    • pp.149-161
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    • 2003
  • Purpose: The purpose of this study is to identified patterns and trend of studies and to analyzed the nursing research related to the mother-child interaction in Korea and to improve direction of nursing research in mother-child interaction in Korea. Method: The research studies related to the mother-child interaction were selected from the Korean Nurses Academic Society Journal, and from dissertation, which were conducted between 1961 and 2002 with the consideration of the condition and the cultural specialty of Korea. The total numbers of the studies were 34. These studies were classified according to 1)time of publication or presentation, 2)research design, 3)type of interaction objects, 4)measurement tool, and 5)chief content of studies. Ressult: 1) Until 1984, there was no research studies related to mother-child interaction. The number of studies on the mother-child interaction on the mother-child interaction has been increased rapidly after 1985. The mother-child interaction studies were 13(38.2%) from the doctoral dissertation, 4(11.8%) from the Master's theses and 17(50%) other papers were published in academic journals. 2) Experimental studies of research design was used in these research studies was 13(38.2%). Descriptive studies was 8(23.6%), correlational studies was 4(11.8%) and comparative studies was 4(11.8%). Qualitative study was just one(2.9%) and literature review was 4(11.8%). Especially experimental studies has been increased. 3) Participants of these studies were mother and infant 29(85.5%), father and infant 2(5.9%), mother and fetus 2(5.9%) and nurse and infant 1(2.9%) 4) Utilization of instruments as follows: 13 studies used Walker et al(1986)'s MIPIS (Mother-Infant Play Interaction Scale), 6 studies used Barnard(1978)'s NCAFS (Nursing Child Assessment Feeding Scale), 4 studies used NCATS(Nursing child Assessment Teaching Scale) for assessing mother-infant interaction. 3 studies used Stainton(1981)'s Parent-Infant Interaction Scale. Choi(1987), Kim(1999) and Kim and Son(1997) used measurement tool researcher made which was modified from NCATS (Nursing child Assessment Teaching Scale) and AMIS(Assessment of Mother-Infant Sensitivity Scale). Other tools used to survey influencing factors of interaction. 5) Content of the research studies were classified 3 different types, such as ① studies about the mother-child interactions' pattern, ② studies about influencing factors of the mother-child interaction, ③ studies about effect of nursing intervention program to improve the mother-child interaction. Conclusion: Therefore we make following suggestions which are made based on the above research analysis : 1) In the future research studies need to compare with other area of discipline in mother-child interaction. 2) More attention and in depth research is needed to validate in terms of research design and statistical data analysis. 3) It is important to develop the instruments which is culturally acceptable in Korea society. 4) The results of correlational studies and experimental studies needs to the integrated by meta analysis.

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Influence of the Alveolar Cleft Type on Preoperative Estimation Using 3D CT Assessment for Alveolar Cleft

  • Choi, Hang Suk;Choi, Hyun Gon;Kim, Soon Heum;Park, Hyung Jun;Shin, Dong Hyeok;Jo, Dong In;Kim, Cheol Keun;Uhm, Ki Il
    • Archives of Plastic Surgery
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    • v.39 no.5
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    • pp.477-482
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    • 2012
  • Background The bone graft for the alveolar cleft has been accepted as one of the essential treatments for cleft lip patients. Precise preoperative measurement of the architecture and size of the bone defect in alveolar cleft has been considered helpful for increasing the success rate of bone grafting because those features may vary with the cleft type. Recently, some studies have reported on the usefulness of three-dimensional (3D) computed tomography (CT) assessment of alveolar bone defect; however, no study on the possible implication of the cleft type on the difference between the presumed and actual value has been conducted yet. We aimed to evaluate the clinical predictability of such measurement using 3D CT assessment according to the cleft type. Methods The study consisted of 47 pediatric patients. The subjects were divided according to the cleft type. CT was performed before the graft operation and assessed using image analysis software. The statistical significance of the difference between the preoperative estimation and intraoperative measurement was analyzed. Results The difference between the preoperative and intraoperative values were $-0.1{\pm}0.3cm^3$ (P=0.084). There was no significant intergroup difference, but the groups with a cleft palate showed a significant difference of $-0.2{\pm}0.3cm^3$ (P<0.05). Conclusions Assessment of the alveolar cleft volume using 3D CT scan data and image analysis software can help in selecting the optimal graft procedure and extracting the correct volume of cancellous bone for grafting. Considering the cleft type, it would be helpful to extract an additional volume of $0.2cm^3$ in the presence of a cleft palate.

Habitat Connectivity Assessment of Tits Using a Statistical Modeling: Focused on Biotop Map of Seoul, South Korea (통계모형을 활용한 박새류의 서식지 연결성 평가: 서울시 도시생태현황도 자료를 중심으로)

  • Song, Wonkyong;Kim, Eunyoung;Lee, Dongkun
    • Journal of Environmental Impact Assessment
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    • v.22 no.3
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    • pp.219-230
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    • 2013
  • Species distribution modeling is one of the most effective habitat analysis methods for wildlife conservation. This study was for evaluating the suitability of species distribution to distance between forest patches in Seoul city using tits. We analyzed the distribution of the four species of tits: varied tit (Parus varius), marsh tit (P. palustris), great tit (P. major) and coal tit (P. ater), using the landscape indexes and connectivity indexes, and compared the resulting suitability indexes from 100m to 1,000m. As factors affecting to the distribution of tits, we calculated landscape indices by separating them into intra-patch indices (i.e. logged patch area (PA), area-weighted mean patch shape index (PSI), tree rate (TR)) and inter-patch indices (i.e. patch degree (PD), patch betweenness (PB), difference probability of connectivity (DPC)), to analyze the internal properties of the patches and their connectivity by tits occurrence data using logistic regression modeling. The models were evaluated by AICc (Akaike Information Criteria with a correction for finite sample sizes) and AUC (Area Under Curve of ROC). The results of AICc and AUC showed DPC, PA, PSI, and TR were important factors of the habitat models for great tit and marsh tit at the level of distance 500~800m. In contrast, habitat models for coal tit and varied tit, which are known as forest interior species, reflected PA, PSI, and TR as intra-patch indices rather than connectivity. These mean that coal tit and varied tit are more likely to find a large circular forest patch than a small and long-shaped forest patch, which are higher rate of forest. Therefore, different strategies are required in order to enhance the habitats of the forest birds, tits, in a region that has fragmented forest patches such as Seoul city. It is important to manage forest interior areas for coal tit and varied tit, which are known as forest interior species and to manage not only forest interior areas but also connectivity of the forest patches in the threshold distance for great tit and marsh tit as adapted species to the urban ecosystem for sustainable ecosystem management.

The Correlation between Acupuncture Therapy on Knee Osteoarthritis and BMI (퇴행성 슬관절염의 침치료 호전도와 BMI와의 상관성)

  • Yeo, In Ho;Kim, Jung Hyun;Jung, Se Ho;Jo, Na Young;Roh, Jeong Du;Kim, Kap Sung;Lee, Seung Deok;Kim, Eun Jung;Lee, Cham Kyul;Lee, Eun Yong
    • Journal of Acupuncture Research
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    • v.30 no.3
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    • pp.101-107
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    • 2013
  • Objectives : The purpose of this study is to investigate the correlation between acupuncture therapy on knee osteoarthritis and BMI. Methods : Data on assessment measurements of knee osteoarthritis and obesity were obtained from 31 patients suffering from knee osteoarthritis from May, 2011 to September, 2012. The assesment measurements consisted of body mass index(BMI), visual analogue scale(VAS) and Western Ontario and McMaster Universities(WOMAC) index. Statistical correlations among assessment measurements were evaluated by examining the Pearson's correlation coefficients. Results : 1. The average age of all patients was $58.87{\pm}9.48$(male : $63.67{\pm}11.34$, female : $57.72{\pm}8.86$). 2. The average BMI of all patients was $25.41{\pm}3.06kg/m^2$. According to clinical definition of obesity by Korean Society for the Study of Obesity, 25.81% of all patients was within normal weight, 25.81% was overweight, 38.71% was obesity and 9.67% was morbid obesity. 3. There were no significant correlations in statistics among assessment measurements. Conclusions : There is significant correlation between knee osteoarthritis and obesity according to many clinical and experimental researches. So more studies on correlation between knee osteoarthritis and obesity and development of assessment measurement are needed.

Quantitative Cyber Security Scoring System Based on Risk Assessment Model (위험 평가 모델 기반의 정량적 사이버 보안 평가 체계)

  • Kim, Inkyung;Park, Namje
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.29 no.5
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    • pp.1179-1189
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    • 2019
  • Cyber security evaluation is a series of processes that estimate the level of risk of assets and systems through asset analysis, threat analysis and vulnerability analysis and apply appropriate security measures. In order to prepare for increasing cyber attacks, systematic cyber security evaluation is required. Various indicators for measuring cyber security level such as CWSS and CVSS have been developed, but the quantitative method to apply appropriate security measures according to the risk priority through the standardized security evaluation result is insufficient. It is needed that an Scoring system taking into consideration the characteristics of the target assets, the applied environment, and the impact on the assets. In this paper, we propose a quantitative risk assessment model based on the analysis of existing cyber security scoring system and a method for quantification of assessment factors to apply to the established model. The level of qualitative attribute elements required for cyber security evaluation is expressed as a value through security requirement weight by AHP, threat influence, and vulnerability element applying probability. It is expected that the standardized cyber security evaluation system will be established by supplementing the limitations of the quantitative method of applying the statistical data through the proposed method.

Comparative Study of Korean Workers' Exposure to Dichloromethane by Process Category between Work Environment Monitoring Program and ECETOC TRA (국내 디클로로메탄 제조·사용 사업장 근로자의 공정별 노출수준에 대한 작업환경측정값과 ECETOC TRA 모델값 비교연구)

  • Jeong, Sujin;Bae, Gyewan;Lee, Naroo
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.31 no.4
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    • pp.317-330
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    • 2021
  • Objectives: By law, companies in Korea must periodically measure workers' exposure to harmful chemicals (the system is called the Work Environment Monitoring Program (WMP)[a]) and report the results to the government. The government also measures exposure to monitor the WMP's reliability (called Reliability Assessment (RA) for WMP[b]). The issue is that measured data from these two sources are so different that the objectivity of WMP needs to be confirmed by comparing the results using the European Centre for Ecotoxicology and Toxicology of Chemicals' Targeted Risk Assessment (ECETOC TRA). Methods: Step 1: Data collection from WMP reports submitted by companies (n=586) and RA for WMP written by the government (n=33). Step 2: Data Standardization by key information included. Step 3: Data conversion to input-variables required to run the ECETOC TRA model, and run the model with specific data (n=514) which meet the predetermined exposure scenario. Step 4: Statistical data analysis by process category (PROC) and ventilation type from each source ([A] and [B]). Step 5: Additional analysis of any unexpected results. Results: The process categories of the production and handling of Dichloromethane were classified into 12 PROCs, and ten of them were selected to run ECETOC TRA. Modeled values tended to be higher than measured values from both sources. For the measured values from WMP, RCR distribution by PROC was narrow (0.197-0.267, 95% CI) and did not have a relationship with ventilation type, which differs from the tendency of the modeling result. Meanwhile, the measured values from RA for WMP were relatively widely distributed (0.301-1.177, 95% CI) by PROC. In particular PROCs (13,19) were high enough to exceed 1. Also, they become low with better ventilation types and appear differently depending on the ventilation type, similar to the model result. Conclusions: This study revealed that ECETOC TRA might have the potential to serve as a screening tool for exposure assessment and to be used as assistive method for WMP to estimate exposure. Further empirical study is required to confirm its availability as a screening tool.

Water Quality Characteristics of the Major Tributaries in Yeongsan and Sumjin River Basin using Statistical Analysis (통계분석을 이용한 영산강·섬진강수계 주요 유입지천의 수질 특성)

  • Park, Jinhwan;Jung, Jaewoon;Kim, Daeyoung;Kim, Kapsoon;Han, Sungwook;Kim, Hyunook;Lim, Byungjin
    • Journal of Environmental Impact Assessment
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    • v.22 no.2
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    • pp.171-181
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    • 2013
  • In this study, we report the water quality characteristics of pollutants for 4 major tributaries in the Yeongsan and Sumjin river basins using statistical analysis, such as regression equation and factor analysis. The flow rate and water qualtiy data collected from 4 sampling sites(Hwangryoung A, Jiseok A, Chooryeong A, Osu A) in the Yeonsan and Sumjin river basin during the past 3 years were analyzed for 11 parameters(flow rate, dissolved oxgen, pH, water temperature, electric conductivity, biochemical oxygen demand, chemical oxygen deman, total organic carbon, total nitorgen, total phosphorus, suspended solid). The results showed that the concentrations of BOD, COD, TOC, T-N, T-P in Hwangryoung A(HW) and Jiseok A(JS) of the Yeongsan river basin were decreased as the flow rate was increased. This means that rather than nonpoint soources, point sources affect water quality. In the cases of Chooryeong A(CR) and Osu A(OS) in the Sumjin river basin, howerever, nonpoint sources than point sources are an important factor that affects the water quality. Also, the factor analysis technique was employed to analyze principal component influencing on water quality. The results revealed that the first principal component in HW was correlated with EC, DO, T-N, water temperature. This "nitrogen influx according to seasonal pattern" factor may be interpreted. In JS, the first principal component was correlated with BOD, COD, TOC and is likely to represent "organic matter" processes. In CR and OS, BOD, COD, TOC, SS and T-P were significantly correlated and is considered as representing "Organic matter and adsorption of phosphorus on sediments influx". This study is expected to contribute to the effective pollution control/management of the surfac waters in the study sites.

Incidence and Mortality of Colorectal Cancer and Relationships with the Human Development Index across the World

  • Rafiemanesh, Hosein;Mohammadian-Hafshejani, Abdollah;Ghoncheh, Mahshid;Sepehri, Zahra;Shamlou, Reza;Salehiniya, Hamid;Towhidi, Farhad;Makhsosi, Behnam Reza
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.5
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    • pp.2465-2473
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    • 2016
  • Background: This study aimed to investigate the standardized incidence and mortality rate of colorectal cancer and its relationship with the human development index (HDI) across the world in 2012. Materials and Methods: This ecologic study was conducted for assessment of the correlation between age-specific incidence rate (ASIR) and age-specific mortality rate (ASMR) with HDI and its components. Data for SIR and SMR for every country for the year 2012 were obtained from the global cancer project. We used a bivariate method for assessment of the correlation between SIR and SMR and HDI. Statistical significance was assumed at P<0.05. Statistical analyses were performed using SPSS (Version 22.0, SPSS Inc.). Results: Countries with the highest SIR of colorectal cancer in the world in 2012, were Republic of Korea, Slovakia, Hungary and countries with the highest SMR were Hungary, Croatia and Slovakia. The correlation between SIR of colorectal cancer and the HDI was 0.712 ($P{\leq}0.001$), with life expectancy at birth 0.513 ($P{\leq}0.001$), with mean years of schooling 0.641 ($P{\leq}0.001$) and with level of income per each person of the population 0.514 (P=0.013). In addition, the correlation between SMR of colorectal cancer and the HDI was 0.628 ($P{\leq}0.001$), with life expectancy at birth 0.469 ($P{\leq}0.001$), with mean years of schooling 0.592 ($P{\leq}0.001$) and with level of income per each person of the population 0.378 (P=0.013). Conclusions: The highest SIR and SMR of colorectal cancer was in the WHO Europe region. There was a positive correlation between HDI and SIR and SMR of colorectal cancer.

Improved Focal Liver Lesion Detection by Increasing Flip Angle During Gadoxetic Acid-Enhancement in MRI (Gadoxetic acid 조영증강 자기공명영상에서 숙임각 변화에 따른 국소 간종양 검출능 비교)

  • Lee, SeJy;Kim, Young-Keun
    • Journal of radiological science and technology
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    • v.38 no.2
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    • pp.115-120
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    • 2015
  • To study the differences of focal liver lesion image detection at 3 minute, 10 minute and 15 minute time points on gadoxetic acid (GA)'s enhanced MR imaging with a flip angle (FA) of $30^{\circ}$ compared with a $11^{\circ}$. The subjects were 69 patients evaluated with GA enhanced MR imaging with 3.0T MR scanner. The patients are total 35(23 men and 7 women at the mean age of 60.4 years), hepatocellular carcinoma(23) and metastsis(12) except for normal, cyst and hemangioma. After GA was injected, FA $11^{\circ}$ and $30^{\circ}$ images were obtained at 3 minute, 10 minute and 15 minute time points respectively. After quantitative and qualitative assessment of each image was done, statistical analysis was performed by using the independent sample T-test. From both quantitative and qualitative assessment of 3 minute and 10 minute MR images after the injection of GA, FA $30^{\circ}$ images was found to be superior than FA $11^{\circ}$, but there were no statistical significance. However, at 15 minute time point, Statistically significant FA $30^{\circ}$ image(p<0.05) was better than FA $11^{\circ}$ therefore, the FA $30^{\circ}$ improves the focal liver lesion detection. FA $30^{\circ}$ of MR image can detect liver lesion more sensitively than the existing $FA11^{\circ}$ image after GA contrast enhancement at 15 minute time point.

The Structural Relationships of The Promotion Mix, Brand Equity and Purchase Intention -Focused on the Automobile Products- (촉진 믹스, 브랜드자산 및 구매의도의 구조 관계 -자동차제품을 중심으로-)

  • Cho, Joong-Il;Ha, Kyu-Soo
    • The Journal of the Korea Contents Association
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    • v.11 no.9
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    • pp.275-292
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    • 2011
  • In this research, we executed a questionnaire survey targeting men and women in 20' or more who reside in the metropolitan area and have experienced purchasing the vehicles in order to study how Promotion Mix Activity affects Brand equity, and ultimately what kind of relation it has with Purchase intention. In the statistical process of collected data, we analyzed the data by using SPSS 12.0 for Windows statistical package and AMOS 7.0 program. As the result of analysis, first, when we analyzed the relation of the Promotion Mix Activity and Brand Equity of the companies, the more affirmative the assessment on the advertising activities of the companies was, the higher the brand popularity, royalty and image increased, And it appeared that as the assessment on PR activities of the companies got more affirmative, the brand popularity, image and royalty increased. Second, as the result of the analysis of the relation between salespersons' Promotion Activities and Brand assets, it appeared that salespersons' social capacity improved Brand awareness and royalty and their strategic capacity improved Brand awareness, royalty and image. Third, seeing the result of the analysis on the relation between Brand equity and Purchase intention, it was shown that Brand popularity had a meaningful positive(+) effect upon satisfaction and repurchase(oral) intention, and Brand royalty had a meaningful positive(+) effect upon satisfaction and repurchase(oral) intention. In addition, it appeared that Brand image had a meaningful positive(+) effect upon satisfaction and repurchase(oral) intention, and finally it could be known that Brand assets had a close correlation with Purchase intention.