• Korean Journal of Rural Living Science
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• v.6 no.2
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• pp.109-119
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• 1995

The objectives of this study were 1) to identity the living conditions of old women at rural area, 2) to inquire of the activities for extra income 3) to Provide information on the social service program development for old rural women. Data were collected by interview with the questionaire from 396 old rural women in Korea. In analyzing data, $x^2$-test has been produced by S A S program package at Rural Development Administration. The major results were as follows ; 1. The average age was 69.7years old of the subjects, illiteracy was 54.1%, widows was 58.6%, and the 18.4% of elderly have led a solitary life. Also, the degree of health care was very low. 2. The source of living costs in most old rural women lay on agricultural income. Also, because of the educational expenditure for their children, etc., they led to poverty, and then could not provide for their old age. 3. In spite of the 60.4% of the old women did farming, a lot of them wishes to have a side job. The reasons why they wish to do a side job were making money, spending their time in working, being proud before their children, etc.. 4. According as they rely on their husband, the eldest son and his wife, for the psychological, physical, economical support, their position among family was low. Therefore, only the 43.3% of old women were satisfied with their life. 5. Finally, in the result of this case study, the old women, who particpate in the extra income promoting program, were satisfied with their rural life, and their social position were high rather than elswhere.

• Progress in Medical Physics
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• v.21 no.1
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• pp.42-51
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• 2010

Imaging studies using MRI, PET, and/or MEG have been primary evaluation methods to quantitatively assess cognitive function. Recent advances in computational technology and information technology may allow a novel evaluation methodology to quantitate cognitive function more cost-effectively. In this study, we developed a software package composed of a series of tests to evaluate cognitive ability combined with a user-friendly touch screen input device. This cognitive assessment tool can quantitate concentration, numeric memory, associative memory, topological memory, visual and muscular reaction, and acoustic reaction over a relatively short testing time. We performed an empirical study on eighty normal subjects aged 20 and 59 years old using the developed evaluation methods. Age-related cognitive deterioration after 40 years old was confirmed. There was no difference in cognitive ability between male and female in the same age group. This study demonstrates the feasibility of a simple but effective evaluation software tool to quantitatively assess cognitive ability. This methodology may provide improved accessibility and reduced costs to perform cognitive function studies to compare between various subject groups.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.11
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• pp.4819-4823
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• 2016

Bckground: Adjuvant radiation therapy is commonly administered following breast-conserving surgery for breast cancer patients. Hypofractionated radiotherapy can significantly reduce the waiting time for radiotherapy, working load on machines, patient visits to radiotherapy departments and medical costs. Material/Methods: Fifty-two patients with operable breast cancer (pT1-3pN0M0) who underwent breast conservation surgery in Tehran Cancer Institute during January 2011 to January 2012, were randomly assigned to undergo radiotherapy in two arms (hypofractionated radiotherapy arm with 30 patients, dose 42.5 Gy in 16 fractions; and conventional radiotherapy arm with 22 patients, dose 50 Gy in 25 fractions). W compared these two groups in terms of overall survival, locoregional control, late skin complications and cosmetic results. Results: At a median follow-up of 52.4 months (range: 0-64 months), the follow-up rate was 82.6%. Overall, after 60 months, there was no detectable significant differences between groups regarding cosmetic results (p = 0.857), locoregional control or survival. Conclusions: The results confirm that hypofractionated radiotherapy with a subsequent boost is as effective as conventional radiotherapy, is well-tolerated and can be used as an alternative treatment method following breast conservation surgery.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.11
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• pp.4951-4957
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• 2016

Background: Apart from reducing occupational exposure to cytotoxic hazards, the PhaSeal(R) closed-system transfer device (CSTD) can extend the beyond-use dates (BUDs) of unfinished vials of antineoplastic drugs for up to 168 hours (seven days). In this study, the total material cost incurred by its use in a Malaysian government-funded hospital was calculated. Methods: A list of vial stability following initial needle punctures of 29 commonly-used antineoplastic drugs was compiled. The amount of the materials used, including drugs, infusion bottles, the PhaSeal(R) CSTD and other consumables, was recorded on a daily basis for three months in 2015. The total cost was calculated based on the actual acquisition costs, and was compared with that of a hypothetical scenario, whereby conventional syringe-needle sets were used for the same amounts of preparations. Results: The use of the PhaSeal(R) CSTD incurred a cost of MYR 383,634.52 (USD 92,072.28) in three months, representing an average of MYR 170.5 (USD 40.92) per preparation or an estimated annual cost of MYR 1,534,538.08 (USD 368,289.14). Compared with conventional syringe-needle approach, it is estimated to lead to an additional spending of MYR 148,627.68 (USD 35,670.64) yearly. Conclusion: Although there was a reduction of drug wastage achieved by extending BUDs of unfinished vials using the PhaSeal(R) CSTD, cost saving was not observed, likely attributable to the wide use of lower-priced generic drugs in Malaysia. Future studies should further evaluate the possibility of cost saving, especially in health settings where branded and high-cost antineoplastic drugs are more commonly used.

• Journal of Nutrition and Health
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• v.36 no.5
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• pp.528-535
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• 2003

The purposes of this study were: 1) to investigate the operational and financial characteristics of contract-managed high school food services in Seoul, 2) to analyze the financial performance of high school food services 3) to develop guidelines for meal pricing and facilities investment costs. From Oct to Nov 2001, questionnaires were mailed to 249 high schools that were managed by contract food service companies. A 40.2％ response rate was recorded. The results of this study were as follows: 1. Student enrollment in high schools run by contract-managed food services was 1,518, with a 68.5％ participation rate in the school lunch program. The average meal price was 2,141 won. 2. Based on the income statement analysis, average total sales were 410,440,504 won and average net profit was 16,098,558 won. 3. The optimum food cost per meal was 1,200-1,300 won per meal, calculating using the methods of conversion factor, RDA (Recommended Daily Allowance), and nutrient exchange unit. 4. Guidelines for meal pricing were developed using the modified actual pricing method based on facilities investment cost, number of meals and food cost. The ratio of labor cost, general management expenses and ordinary profit were adopted from the schools with liability. The food cost, depreciation and interest cost were calculated based on unit meal. 5. The guideline for facilities investment was developed based on the number of meals, meal price and food cost. The guideline included the maximum facilities investment cost paid by the contract food service management company. (Korean J Nutrition 36(5): 528∼535, 2003)

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.1
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• pp.57-64
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• 2017

In order to reduce damages to major railroad components, which have the potential to cause interruptions to railroad services and safety accidents and to generate unnecessary maintenance costs, the development of rolling stock maintenance technology is switching from preventive maintenance based on the inspection period to predictive maintenance technology, led by advanced countries. Furthermore, to enhance trust in accordance with the speedup of system and reduce maintenances cost simultaneously, the demand for fault diagnosis and prognostic health management technology is increasing. The objective of this paper is to propose a highly reliable learning model using various machine learning algorithms that can be applied to critical rolling stock components. This paper presents a model for railway rolling stock component fault diagnosis and conducts a mechanical failure diagnosis of motor components by applying the machine learning technique in order to ensure efficient maintenance support along with a data preprocessing plan for component fault diagnosis. This paper first defines a failure diagnosis model for rolling stock components. Function-based algorithms ANFIS and SMO were used as machine learning techniques for generating the failure diagnosis model. Two tree-based algorithms, RadomForest and CART, were also employed. In order to evaluate the performance of the algorithms to be used for diagnosing failures in motors as a critical railroad component, an experiment was carried out on 2 data sets with different classes (includes 6 classes and 3 class levels). According to the results of the experiment, the random forest algorithm, a tree-based machine learning technique, showed the best performance.

• Journal of the Korea Society of Computer and Information
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• v.19 no.4
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• pp.63-69
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• 2014

Third Person Action Game is a genre receiving continuous interest from many game enthusiasts. The most distinctive feature about third person action games is that the user can actually see the character as well as the various actions, which in turn increases user engagement. Many games are developed using game engines. However, this study designs a third person action game using only DirectX library instead of the specialized techniques in game engines. By doing so, the game development costs will be minimalized. The study also uses several basic algorithms in order to process the various events and to make the animation effects more efficiently managed in the graphic device. The performance superiority is demonstrated by the results of the study.

• Korea Journal of Hospital Management
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• v.18 no.3
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• pp.106-125
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• 2013

Medical litigation, as a method of resolving medical disputes, has been a huge burden on both the patient and medical institution as it is both costly and time-consuming. The Korea Medical Dispute Mediation and Arbitration Agency has created a dispute mediation process as a method of alternative dispute resolution(ADR). Being in its early stage of implementation, there are still areas requiring improvement as some functions overlap with the Korea Consumer Agency's damage redress and mediation process. This study examines the problems of existing practices in medical litigation while reviewing the mediation process of the two agencies from legal/administrative aspects, and provides an in-depth analysis of the situation through case studies and interviews. While the Korea Medical Dispute Mediation and Arbitration Agency offers many advantages in resolving medical disputes, there must be a distinct division of roles and mutual cooperation with the Korea Consumer Agency. Considering the increasing amount of compensation in medical disputes, medical professionals are being requested to carry medical malpractice insurance. However, this has yet to become a general trend in the medical field despite the growing social demand. As such, the coverage of medical malpractice insurance should be expanded to prevent medical accidents from escalating into medical disputes, thus acting as a social safety net. This study seeks to examine the methods of medical dispute resolution and to allow institutional provisions to reduce the social costs arising from such disputes.

• Korea Journal of Hospital Management
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• v.25 no.2
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• pp.57-68
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• 2020

Purpose: The purpose of this study is to determine the influence of hospital employees' perceptions and performance expectations on IT technologies introduction and intention to use in the Fourth Industrial Revolution. Methodology: A survey was conducted on 524 employees at 42 hospitals. Pearson's correlation analysis, regression analysis, Sobel test, and structural equation were used for the analysis. Findings: The factors of technical situation (complexity, compatibility, technical readiness, and security concerns), those of environmental situation (competitive pressure and regulatory support), and organizational situation (top management support and costs) have influenced on the recognition of employees in the hospital and the performance expectations. IT technology introduction and use intention have been influenced by technical situation, organizational situation, and environmental situation in order. But security concerns and cost factors have not statistically affected. In addition, due to the perception and performance expectations of hospital employee who have a role in mediating the introduction and use intention of IT technology, the greater the perception and performance expectations of hospital employees, the higher the intention of introduction and usage of IT technology. Practical Implications: Rather than considering the position of external customers and the position of competitive hospitals, more attention is required for the perception and performance expectations of the internal members.

• The Journal of Korean Academic Society of Nursing Education
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• v.5 no.1
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• pp.7-19
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• 1999

The purpose of this study was to examine nursing college students' knowledge of and attitudes toward brain death, organ donation and organ transplantation. The research design utilized in this study was a descriptive research design. The data were collected from September 7 to 14, 1998, by means of strutted questionnaire. To measure students' knowledge of brain death, organ donation and organ transplantation, Joo's(1995) instrument was used. The questionnaire was composed of 22 items. To measure students' attitudes toward organ donation and organ transplantation, s(1995) Instrument was used. The questionnaire was composed of 22 items. The data were analyzed by frequency, t-test, ANOVA, and Pearson's Correlation Coefficient using the SAS program. The results were as follows : 1. Students' knowledge of brain death, organ donation and organ transplantation was 9-20. The mean score was 15.36, with 22, the highest possible score. There was statistically significant difference between students' knowledge and approval on the brain death recognition group(t=9.75, p=0.002). 2. Students' altitudes toward organ do nation and organ transplantation showed is mean score of 3.61 on a 5 attitudes points Liken scale. More than 80% of respondents agreed that organ transplantation can offer a high quality of life to the recipient and is an acceptable form of medical treatment. The health care costs associated with organ transplantation are worth itif another's life can be saved. Students felt it important to help others who are very ill. Also, by donating organs, students felt a part of their own body would continue to live by making it possible for someone else to live. Only 2.9% of students objected to organ donation for religious reasons. There was statistically significant difference among students' attitudes, experienced blood donor group(t=17.04, p=0.000), approval on the brain death recognition group (t=21.06, p=0.000), organ donation agreement group(t=46.13, p=0.000).