• Journal of Nutrition and Health
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• v.42 no.4
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• pp.374-385
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• 2009

This study aims to develop an index of food security in order to assess food security status in Korea and to evaluate reliability and validity of the index. The index of food security was developed based on the US Household Food Security Survey Module (US-HFSS). After the US-HFSS was translated and back-translated, it was evaluated and modified by a focus interview for experts. The developed Korean Household Food Security Survey Module (K-HFSS) was tested by cognitive interviews and a pretest for general community population to assess its application for Korean population. For the reliability and validity of K-HFSS, the survey was conducted with 300 adults aged 40 years or more living in a rural community and 212 infants and toddlers living in an urban community. The reliability was assessed by Cronbach' alpha and the validity was evaluated by content validity, construct validity, and criterion-related validity. The questionnaire items of K-HFSS were partly modified, accounting for Korean social and cultural backgrounds and adapted by general community population. The reliability was relatively high, showing Cronbach' alpha coefficients ranged from 0.80 (for adults) to 0.87 (for infants and toddlers). The content and construct validities were all acceptable. The result of criterion-related validity showed that food security status was significantly related to the household income level. In conclusion, the K-HFSS would be used as a reliable and valid instrument to assess food security status in parts of the Korean population.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.2
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• pp.75-87
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• 2020

This paper aims to not only investigate the nature of financial security and its measurement, but also to compare financial security level in 629 listed companies divided into four different industries (materials, industrials, health care, and consumer goods) before building a theoretical framework and regression models to examine the determinants of financial security. By gathering 2,167 financial statements published in Vietnamese Stock Exchange during eight years from 2012 to 2019, with the support of STATA, the research results indicate that six different internal factors, which are liquidity, profitability, firm size, debt management ratios, asset management ratios, and cash flows, explain 77.7% the change of financial security ratio and 3.4% the change in sustainable growth ratio. Specifically, while firm size has a positive impact on sustainable growth ratio but a negative impact on financial security ratio, deb management and profitability have an insignificant influence on the financial security level. Furthermore, an increase in asset management ratios would result positively in both two dependent variables whereas a rise in sustainable growth and a decline in financial security ratio are expected to witness if there is an increase in cash flows.

• 한국노년학
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• v.30 no.1
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• pp.93-108
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• 2010

This study conducted a secondary analysis by using original data of performed by Korea Institute for Health and Social Affairs to determine factors affecting health-related quality of life for the elderly aged over 65 years living in Korea. The survey was conducted in 2005 and it evaluated totally 34,152 cases. Among them 3074 cases investigating the elderly aged over 65 years were selected for this study and finally 2036 cases were included in it by excluding cases with no answer or a wrong answer. The results were as follows. In the illness days, the average of the whole subjects was 11.05 days and it was longer when subjects were female and older, had lower educational background and lower family income, did not have spouses and jobs and were covered by medical aid as medical security. In the years of activity restriction, the average of the total subjects was 3.48 years and it was increased when they were older, had lower educational background and lower family income, did not have spouses, lived in detached houses and were covered by medical aid as medical security. Subjective health condition of the total subjects was 2.64 points out of 5 points in average. The scores were higher when subjects were male, younger, had better educational background, spouses, jobs and more family income, lived in multi-family living houses and were covered by corporate insurance as medical security. The average of total quality of life of the subjects was 2.61 points out of 3 points and it was found to be higher when subjects were male, younger, had better educational background, spouses, jobs and more family income and were covered by corporate insurance as medical security. It was decreased with higher illness days, higher years of activity restriction and lower subjective health condition. For the effects of the factors related to quality of life, subjective health condition showed the largest influence.

• Journal of the Korean Society of Food Culture
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• v.38 no.5
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• pp.304-313
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• 2023

This study was a qualitative investigation into the food security and food variety among the rural elderly. For the qualitative data collection, nineteen elderly people who lived in Yangpyeong-gun were interviewed individually. Food security and variety was evaluated based on accessibility and affordability. The participants seemed to have difficulty preparing their own meals and eating with their families or others. The frequency of vegetable intake was found to be high, as vegetables were available through cultivation. However, in terms of diversity, the intake of meat and milk, which are sources of protein and calcium, was found to be significantly low. This has to do with very poor physical accessibility. A lack of nutrition education was identified as the biggest reason for not following dietary therapy despite having a pre-existing disease condition. Therefore, for the elderly in Yangpyeong-gun, it is suggested that a basic nutrition policy for food supply that can increase their actual intake is more essential than education on cooking and nutrients. Moreover, periodic nutrition education or a regular counseling system for dietary therapy through local public health centers may help improve the health of the elderly.

• The Korean Journal of Health Service Management
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• v.6 no.1
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• pp.77-86
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• 2012

Objective of the study represents experiences of medical utilization of Psychiatric Outpatients. This research draws on information obtained from the 2008 National-wide sampling study of the Korean Healthcare Panel(KHP) conducted. The results of our study suggest the significance of variables such as the gender(p<.001) in the social demographical characteristics, the medical security type(p<.016), medical institution utilization(p<.012) treatment type(p<.004) in the utilization factors. In the case of medical utilization cost, the financial support factor(p<.018) showed a significant relationship. Depending on the particularities of gender, medical security type, financial support, medical institution utilization, treatment type were determined through a multiple logistics regression analysis. Gender showed that, among Psychiatric outpatient age of 30-59 level was 5.358 times and 60 years and older, their the second medical examination level was 4.490 times higher than Psychiatric outpatients under the age of 29. Health insurance type showed for the others medical allowance was 6.712 times higher than job health insurance and the other treatment was 0.395 times lower than drug treatment. Psychiatric outpatients utilization are rooted in the thoughts and factor levels of the Psychiatric patients and must be understood from the Psychiatric outpatients's perspective. The point is not only to gauge the patients research during Psychiatric medical utilization. The important of social community mental healthcare services levels goes beyond the goal of enhancing healthcare.

• International Journal of Computer Science & Network Security
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• v.21 no.5
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• pp.84-89
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• 2021

Medical tests are very important part of the health monitoring process. It is performed for various reasons like diagnosing diseases, determining medications effectiveness, etc. Due to that, patients should be able to read and understand the available online tests and results in order to take proper decisions regarding their health condition. In fact, people are varying in their educational level and health backgrounds that make providing such information in an easily readable format by the majority of people considered as a challenge in the health domain since ever. This paper describes the MTReadable corpus which constructed for evaluating the readability of online medical tests. It covered 32 basic periodic check-up tests with over 36k words. These tests information are annotated and labelled based on three readability levels which are easy, neutral and difficult by three non-specialists native Arabic speakers. This paper contributes to enriching the Arabic health research community with an investigation of the level of readability of online medical tests and to be a baseline for further complex health online reports and information.

• International Journal of Computer Science & Network Security
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• v.22 no.2
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• pp.357-361
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• 2022

Employing the available technologies and utilizing the advanced means to improve the level of health care provided to citizens in their various locations. Citizens have the right to get a proper health care services despite the location of their residency or the distance from the health care delivery centers, a goal that can be achieved by utilizing air ambulance systems. In such systems, aircrafts and their life spans are the essential component, the flight duration of the aircraft during its life span is determined by the maintenance schedule. This research, enhances the air ambulance systems by presenting a proposal that maximizes the aircraft flight duration during its life span. The enhancement will be reached by developing a set of algorithms that handles the aircraft maintenance problem. The objective of these algorithms is to minimize the maximum completion time of all maintenance tasks, thus increasing the aircraft operation time. Practical experiments performed to these algorithms showed the ability of these algorithms to achieve the desired goal. The developed algorithms will manage the maintenance scheduling problem to maximize the uptime of the air ambulance which can be achieved by maximizing the minimum life of spare parts. The developed algorithms showed good performance measures during experimental tests. The 3LSL algorithm showed a higher performance compared to other algorithms during all performed experiments.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.15 no.3
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• pp.974-992
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• 2021

Recently, the healthcare field has undergone rapid changes owing to the accumulation of health big data and the development of machine learning. Data mining research in the field of healthcare has different characteristics from those of other data analyses, such as the structural complexity of the medical data, requirement for medical expertise, and security of personal medical information. Various methods have been implemented to address these issues, including the machine learning model and cloud platform. However, the machine learning model presents the problem of opaque result interpretation, and the cloud platform requires more in-depth research on security and efficiency. To address these issues, this paper presents a recent technology for Internet-of-Things-based (IoT-based) health big data processing. We present a cloud-based IoT health platform and health big data processing technology that reduces the medical data management costs and enhances safety. We also present a data mining technology for health-risk prediction, which is the core of healthcare. Finally, we propose a study using explainable artificial intelligence that enhances the reliability and transparency of the decision-making system, which is called the black box model owing to its lack of transparency.

• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.15-22
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• 2017

This paper analyzes vulnerability of each service protocol used in ICT convergence industry, smart factory, smart grid, smart home, smart traffic, smart health care, and suggests technologies that can overcome security vulnerabilities. In addition, we design a service-oriented protocol security framework that allows us to quickly and easily develop security functions in an open environment by defining a security element common to protocols and designing a security module for each protocol layer including the corresponding elements. Service protocol independent security module and specialized security module, it will be possible to develop flexible and fast security system in ICT convergence industry where various protocols are used. The overall security level of the ICT service network can be improved by installing the necessary security modules in the operating system, and the productivity can be improved in the industrial security field by reusing each security module.

• Journal of Korean Public Health Nursing
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• v.5 no.1
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• pp.70-95
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• 1991

The ageing problem of the population has been emerging in Korea since 1970's so that it is expecting the elderly 65 years and over among the total population from $4.5\%$ in 1988 to be $6.3\%$ in year 2000. This study was conducted to provide secure policy development in coming years for the aged on medical and health care aspects based on the examining current status of the aged problems and health care policies and systems. The study divided into four parts; The first part examined the medical insurance program and public assistance program of the health services in relation to the aged. The second part emphasized on reduction of medical care cost for the aged. The third part studied the regular health check-up program and health education for the aged. The fourth part examined the chronic disease management programs for the aged and strategies of the health care service quality improvement and specialized programs. The following recommendations made as the results of the study. 1. At present, the medical insurance program and public assistance program for the medically indigent is not appropriate to the elderly because it is a part of general medical insurance program so that Health Security Law for the Aged is proposed. 2. Medical cost will be increased due to the high occupancy rate of hospital beds and long stay of the elderly so that it is recommended to develop an early discharge program, home health care program, Health hospice and an althernative programs. 3. At present, a regular health check-ups for the elderly is not included in medical insurance program so that it is recommended to be included in the insurance program and at the same time health education program thoroughly developed for the aged. 4. To make proper medical and nursing services on chronic diseases for the elderly, it is recommended manpower development, specialized clinics or hospitals, nursing homes and an equivalent long term care facilitices should be established on the community based and a research institutions also to be related to supper the care programs.