• Asian Pacific Journal of Cancer Prevention
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• 제15권23호
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• pp.10101-10106
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• 2015

The purpose of this study was to identify factors of intrinsic motivation that affect regular breast cancer screening and contribute to development of a program for strategies to improve effective breast cancer screening. Subjects were residing in South Korea Gangwon-Province and were female over 40 and under 69 years of age. For the investigation, the Intrinsic Motivation Inventory (IMI) was modified to the situation of cancer screening and was used to survey 905 inhabitants. Multinominal logistic regression analyses were conducted for regular breast cancer screening (RS), one-time breast cancer screening (OS) and non-breast cancer screening (NS). For statistical analysis, IBM SPSS 20.0 was utilized. The determinant factors between RS and NS were "perceived effort and choice" and "stress and strain" - internal motivations related to regular breast cancer screening. Also, determinant factors between RS and OS are "age" and "perceived effort and choice" for internal motivation related to cancer screening. To increase regular screening, strategies that address individual perceived effort and choice are recommended.

• 대한영양사협회학술지
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• 제21권4호
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• pp.308-319
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• 2015

The purpose of this study was to assess risk factors associated with food insecurity in the Korean elderly aged over 65 years using data from the Korea National Health & Nutrition Examination Survey 2013 (KNHANES VI). A total of 1,200 subjects were analyzed among the participants of the KNHANES 2013 by using SPSS statistics complex samples (ver. 21.0). Food insecurity was measured by using the modified US Household Food Security/Hunger Survey Module. Thirteen percent of subjects lived in food insecure households. There were differences in the prevalence of food insecurity according to sex, educational level, income level, and household structure. Mean age of the food insecurity group was significantly higher than that of the food security group. The results of logistic regression analysis showed that food insecurity was significantly associated with alcohol intake (OR: 1.82), prevalence of melancholy (OR: 2.07) and suicidal thoughts (OR: 2.67), and intake deficiency of energy (OR: 1.60), calcium (OR: 1.97), iron (OR: 1.97), potassium (OR: 1.96), riboflavin (OR: 1.76), and niacin (OR: 1.64), while not with smoking, physical activity, chronic diseases including obesity, anemia, diabetes, and osteoarthritis, and deficiency of protein, vitamin A, thiamin and vitamin C. These findings suggest that food insecurity is strongly related to mental health and certain nutrient intakes. Prospective research is needed to establish the effects of food insecurity on chronic diseases.

• Journal of the Korean Data and Information Science Society
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• 제24권2호
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• pp.211-222
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• 2013

중도절단된 자료가 있을 경우 조건부 분위수함수를 비모수적으로 추정하는 문제에 대하여 다루고 있다. 역함수에 근거한 방법인 Yu와 Jones (1998)에 의해 제안된 중복커널기법 추정량과 Lee 등(2006)의 국소로지스틱기법 추정량을 중도절단된 자료가 있는 경우로 수정하여 새롭게 제안하고, 이들을 기존의 Koenker와 Bassett (1978)의 점검함수에 근거한 커널평활 추정량들과 모의실험을 통해 비교해 보았다. 모의실험을 통하여 역함수에 근거한 추정량들은 조건부 분포가 대칭인 모형에서, 점검함수기법 추정량들은 한쪽으로 치우친 분포인 경우에 조건부 분위수를 대체로 더 잘 추정하고 있음을 알 수 있었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1992년도 하계학술대회 논문집 A
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• pp.242-244
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• 1992

Conventionally in the industrial control, PlD controller has been used because of its robustness, and nonlinear characteristic of a system under control. Although the PlD controller produce suitable parameter of the each system and also variable of PlD controller should be changed according to environment, disturbance, load. In this paper, the convergence and learning accuracy of the back-propagation(BP) method in neural network are investigated by analyzing the reason for decelerating the convergence of BP method. and examining the rapid deceleration of the convergence when the learning is executed on the part of sigmoid activation function with the very small first derivative. The modified logistic activation function it proposed by defining the convergence factor based on the analysis and applied to the position and speed control of a DC-servo motor. This paper revealed for experimental, a neural network and a PD controller combined off-line system using developed the position and speed characteristics of a DC-servo motor.

• 임상간호연구
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• 제18권1호
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• pp.171-181
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• 2012

Purpose: This study was conducted to identify the clinical characteristics and risk factors on the occurrence of metabolic syndrome (MS), and to examine factors affecting the severity of coronary artery diseases in patients with acute myocardial infarction (AMI). Methods: A total of 894 patients who had admitted C national university hospital from 2008 to 2010 participated in this study. Collected data were lipid profiles, abdominal circumference, blood pressure, fasting blood sugar (FBS) level, participants' demographic data and other risk factors by interview, measurement, and review of participants' medical records. MS was defined according to modified National Cholesterol Education Program Adult Treatment Panel III and Asia-Pacific Criteria. Results: The participants' mean age was 64.7 (${\pm}11.0$) years and 65% was male patients. The participants' with MS was 37.6% in men and 71.4% in women. According to binary logistic regression analysis, high FBS (95% CI 1.7-2.0) and lower high-density lipoprotein (HDL) cholesterol (95% CI 1.1-1.9) were independent predictors of severe coronary artery disease. Conclusion: These risk factors of severe coronary artery disease will be utilized as an important basic data in part of management, education, and countermeasure of patients with both MS and AMI.

• 한국산업융합학회 논문집
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• 제6권4호
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• pp.413-420
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• 2003

We can take 'Profit security', in the field Process improvement activity and man-power upgrade in the learning of organization activity or upgrading ability of each peoples. After Tayler System(Scientific Management in1911) and Ford System(Conveyor system in 1913), Toyota System(Ohno's TPS; Toyota Production System around 1980) which was developed by Toyota in Japan in the third productive revolution. This thesis study on the focus of 2 successful examples(P and S companies in Seong-Seo industrial complex Tae-Gu city) which introduce Toyota system can apply to VM(Visual Management), 3jeong(Right Products Right Quantity, Right Box and Right Position)5S(Seiri, Seiton, Seisoh Seiketsu, Sitsuke), JIT(Just In Time), KAIZEN(Improvement), KANBAN System(Logistic) and output of Factory. For examples P company obtained a lot of results(productivity increase 19%, Quality up 46%-36ppm, storage decrease 25% per year), S company obtained a lot of results(productivity increase 20%, Quality up 40%, storage decrease 33% per year, 2600 improvements in 2002. In conclusion Korean KANBAN system (modified Toyota System) is similar to exchange of work as Korean traditional system in agriculture as like dure 'PUMASHI' SANGBU-SANJO) that's autonomous management systems. In conclusion Korea KANBAN system needs apply to not only all the manufacturing industry but also the various fields of industry.

• 한국지하수토양환경학회지:지하수토양환경
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• 제21권3호
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• pp.21-34
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• 2016

In the present study, we applied various machine learning techniques comparatively for prediction of subsurface structures based on multiple secondary information (i.e., well-logging data). The machine learning techniques employed in this study are Naive Bayes classification (NB), artificial neural network (ANN), support vector machine (SVM) and logistic regression classification (LR). As an alternative model, conventional hidden Markov model (HMM) and modified hidden Markov model (mHMM) are used where additional information of transition probability between primary properties is incorporated in the predictions. In the comparisons, 16 boreholes consisted with four different materials are synthesized, which show directional non-stationarity in upward and downward directions. Futhermore, two types of the secondary information that is statistically related to each material are generated. From the comparative analysis with various case studies, the accuracies of the techniques become degenerated with inclusion of additive errors and small amount of the training data. For HMM predictions, the conventional HMM shows the similar accuracies with the models that does not relies on transition probability. However, the mHMM consistently shows the highest prediction accuracy among the test cases, which can be attributed to the consideration of geological nature in the training of the model.

• 근관절건강학회지
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• 제21권1호
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• pp.36-45
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• 2014

Purpose: The purpose of this study was to investigate the factors increasing fall risk in the residential environment risk and the perceived fall risk among the older adults who received home care services to provide information for developing a comprehensive falls intervention program. Methods: The subjects were 227 community-dwelling elderly aged 65 years and over who were taken care of by home-visiting nurses of the national health centers. The data were collected from July to August in 2012 using the Choi's residential environmental risk scale (2010) and the Hong's fall risk scale (2011). Results: Requires an assistive devices to walk, modified residential environment, health security, approval certificate of LTC, residential safety perception, residential environment risk, and perception of fall risk were statistically significant risk factors. A multiple logistic regression analysis showed that room & kitchen, physical perception, medication & ADL perception, floor-related environmental perception, and daily living tool-related perception were statistically significant predictors of fall. Conclusion: The results showed that the residential environment and the perceived fall risk were associated with fall experiences among the elderly. It is necessary to develope multifactorial intervention programs considering both environmental and perceived risk factors as well as physical risk factors to reduce and prevent falls among the elderly.

• Child Health Nursing Research
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• 제14권3호
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• pp.285-294
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• 2008

Purpose: This study was done to estimate the prevalence of atopic dermatitis (AD) and its risk factors for AD in children living in the community. Method: Random samples of 10,236 were selected from 43 kindergarten (1,418) and 57 elementary (8,718) students in K city. Data from 1,079 (kindergarten children) and 7,271 (elementary) students were used in the final analysis. The Korean-translated modified version of the International Study of Asthma and Allergies in Childhood (ISSAC) questionnaire was used in this cross-sectional survey. Parents answered the survey questionnaire. Results: The lifetime and last 12-month prevalence of AD were 40.15%; 30.86% in kindergarten children and 33.56%; 25.37% in elementary children. The lifetime and last 12-month prevalence of AD diagnosis were 40.8%; 18.68% in kindergarten children and 34.36%; 12.63% in elementary children. The lifetime prevalence of AD treatment was 25.93% in kindergarten children and 22.07% in elementary children. Multivariate logistic regression analysis revealed that risk factors for AD were age, allergic disease, age of house, carpets, pets. Conclusion: The study suggests that prevalence of AD has increased among children in the community. These data can be used to manage possible risk factors that are predictors of childhood AD.

• East Asian Economic Review
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• 제20권4호
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• pp.447-467
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• 2016

The RTAs with trade facilitation provisions have been expected to generate a larger net trade-creating effect and complement the discriminatory feature of RTAs but have yet to be empirically proven. Recognizing the limitations of existing studies, we conducted a quantitative analysis on the effects of RTAs with and without trade facilitation provisions on both intra- and extra-bloc trade by using a modified gravity equation. We applied the Poisson Pseudo-Maximum Likelihood (PPML) estimation with time varying exporter and importer fixed effect method to panel data consisting of 45,770 country pairs covering 170 countries for 2000-2010. We found that the trade facilitation provisions in existing RTAs are non-discriminatory by generating more intra- and extra-bloc trade in general. In particular, we found that the trade effects of RTAs in the APEC region are much stronger than the general case covering all RTAs in the world. In addition, as we control the trade effect of a country's trade facilitation, which is ranked by the World Bank's logistic performance index, RTAs consisting of trade facilitation provisions are discriminatory for trade in final goods and non-discriminatory for trade in intermediate goods. Overall, we endeavor to "explain," instead of "hypothesizing," why most of the recent RTAs contain trade facilitation provisions, especially in light of the deepening regional interdependence through trade in parts and components under global value chains and support the necessity of multilateralizing RTAs by implementing non-discriminatory trade facilitation provisions.