• The Journal of Industrial Distribution & Business
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• v.11 no.7
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• pp.29-40
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• 2020

Purpose: In modern society, many urban problems are occurring, such as aging, hollowing out old city centers and polarization within cities. In this study, we intend to apply big data and machine learning methodologies to predict depression symptoms in the elderly population early on, thus contributing to solving the problem of elderly depression. Research design, data and methodology: Machine learning techniques used random forest and analyzed the correlation between CES-D10 and other variables, which are widely used worldwide, to estimate important variables. Dependent variables were set up as two variables that distinguish normal/depression from moderate/severe depression, and a total of 106 independent variables were included, including subjective health conditions, cognitive abilities, and daily life quality surveys, as well as the objective characteristics of the elderly as well as the subjective health, health, employment, household background, income, consumption, assets, subjective expectations, and quality of life surveys. Results: Studies have shown that satisfaction with residential areas and quality of life and cognitive ability scores have important effects in classifying elderly depression, satisfaction with living quality and economic conditions, and number of outpatient care in living areas and clinics have been important variables. In addition, the results of a random forest performance evaluation, the accuracy of classification model that classify whether elderly depression or not was 86.3%, the sensitivity 79.5%, and the specificity 93.3%. And the accuracy of classification model the degree of elderly depression was 86.1%, sensitivity 93.9% and specificity 74.7%. Conclusions: In this study, the important variables of the estimated predictive model were identified using the random forest technique and the study was conducted with a focus on the predictive performance itself. Although there are limitations in research, such as the lack of clear criteria for the classification of depression levels and the failure to reflect variables other than KLoSA data, it is expected that if additional variables are secured in the future and high-performance predictive models are estimated and utilized through various machine learning techniques, it will be able to consider ways to improve the quality of life of senior citizens through early detection of depression and thus help them make public policy decisions.

• Journal of Nutrition and Health
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• v.50 no.4
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• pp.361-375
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• 2017

Purpose: The purpose of this study was to investigate the nutritional status of 3~5 year old children attending kindergarten and childcare facilities in 2010 and 2014. Methods: Data were obtained from the 2010 and 2014 Korea National Health and Nutrition Examination Surveys (KNHANES) and included 509 subjects aged 3~5 years old attending kindergarten and childcare facilities. Results: In 2014, rate of skipping meals by children was 16.2%, an increase of 5.5% compared with the rate of skipping meals by children in 2010. Calcium intake in 2014 was 397.41 mg at 3 years old, 419.27 mg at 4 years old, and 414.01 mg at 5 years old. For the mean nutrient adequacy ratio (MAR) of subjects in 2010 and 2014, MAR at 3 years old (0.86) was significantly lower than those at 4 and 5 years old (0.90, 0.91) (p < 0.01). In 2010 and 2014, EAR intake at 3 years old (2.72) was significantly higher than those at 4 years old (2.14) and 5 years olds (1.92) (p < 0.01). Conclusion: As a result, compared with 2010 before establishment of the Children's foodservice management center, there was no improvement in the polarization of nutrient intake of children in 2014. Therefore, researchers believe that a continuous monitoring system developed by nutrition experts and children's foodservice management center are needed to improve the nutritional status of children. Of children between the ages of 3~5 years old, those with intakes under EAR were mostly 3 years old. Therefore, researchers suggest that the infant age group of KDRIs, which is classified as 1~2 years old and 3~5 years old, needs to be reestablished considering the growth and development of infants.

• Journal of Technologic Dentistry
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• v.35 no.2
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• pp.145-155
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• 2013

Purpose: The recent proliferation of the aging population, oral health care is closely related to the mental health of the elderly is very important being recognized. Provide basic data for improving the quality of life for the elderly, to determine whether the oral health of the elderly whether oral self-perception of health and any related wish. Methods: Surveys to May 20 from April 15, 2011, subjects were elderly and living in Daejeon and Chungnam 277 people were examined. All the statistics using SPSS 18.0 for the determination of statistical significance, and the significance level was 0.05. Results: 1. Recognized, the most common oral health, self-aware bad the state (46.2%) there was no significant difference in the general characteristics according to self-Oral health status, remaining natural dimensions or the intra-oral prosthetic, there was no significant difference. More teeth, residual phase, in accordance with intra-oral prosthetic mandibular Not all dentures, partial dentures, full dentures net self-perception of oral health status better recognized. 2. According to the type of partial dentures, oral health status self-phase, mixed mandibular removable, fixed, fixed, removable partial dentures in order to recognize that good oral health, self-aware state, showed between them, there was no significant difference. 3. Of variable dimension that has nothing to do with the remaining natural maxillary and mandibular prosthetic maxillary prosthetic mandibular partial dentures, age income, a positive correlation was negatively correlated. The case of the mandible, the mandibular prosthetic mandibular partial denture, maxillary prosthetic, the amount of income were correlated. 4. Intra-oral Prosthetics correlation variables in the maxillary, mandibular prosthesis, the positive correlation between income, age was negatively correlated, if the income of the mandible. Maxillary partial denture has nothing to do with the variable portion of the mandibular denture, age was a negative correlation was found. Conclusion: Satisfaction and how now it is important simply to live as long, but you need to pay attention to the quality of life, sometimes with an aging population and the increase of soybean To buy the loss of teeth causes the typical health problems of the elderly. Elderly people of any relevant oral health and the oral cavity by the state to determine whether to provide the basic data for oral health education was more residual value, intra-oral prosthetics there is no more self-aware, the oral health status is good to recognize that appeared. Strengthen the oral health education to improve the quality of life of the elderly, and is thought to be necessary to increase the number of residual.

• Journal of Korean Clinical Nursing Research
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• v.18 no.1
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• pp.39-51
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• 2012

Purpose: Thisstudy was conducted with an aim to get a kind of prioritiesin developing the evidence-based nursing practice guidelines in fields. Methods: This study utilized a two-round Delphi surveys from November to December, 2010 with self-administered questionnaires which had a scale ranged from 0 to 9. A total of 95 head nurses working at the forty different general hospitals was asked to evaluate the priorities in four criteria; patient coverage, certainty, improvement in patient outcome and in nursing practice (first round) and 65 head nurses were asked to decide the importance of the criteria afterwards (second round). Results: The relative importance of 4 criteria was 22.3% in patient coverage, 26.5% in certainty, 23.5% in improvement of patient outcome, and 27.7% in improvement of nursing practice as the results of the 1st round and 20.6%, 26.6%, 24.8%, and 28.0% for the 2nd round, respectively. Top five nursing practices showed high scores after considering the relative importances of the 4 criteria were medication, intravenous therapy, checking vital sign, pain management, and diagnostic test or procedures care. Conclusion: It is recommended to take into account of the priorities that were found in this study when someone intends to develop a evidence-based nursing practice guideline.

• Clinical and Experimental Pediatrics
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• v.60 no.3
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• pp.70-76
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• 2017

Purpose: This study investigated self-food restriction during breastfeeding, reviewed the literature showing the effect of maternal diet on the health of breast-fed infants, and explored the validity of dietary restrictions. Methods: Questionnaire data were collected from breastfeeding Korean mothers who visited the pediatric clinic of Cheil General Hospital & Women's Healthcare Center from July 2015 through August 2015. The survey included items assessing maternal age, number of children, maternal educational attainment, household income, degree of difficulty with self-food restriction, types of self-restricted foods, dietary customs during breastfeeding, and sources of information about breastfeeding. Results: The questionnaire was completed by 145 mothers. More than a third (n=56, 39%) had discomfort from and usually avoided 4-5 types of food (mean, 4.92). Mothers younger than 40 years had more discomfort (odds ratio [OR], 12.762; P=0.017). Primiparas felt less discomfort than multiparas (OR, 0.436; P=0.036). Dietary practices were not influenced by maternal educational attainment or household income. The most common self-restricted foods were caffeine (n=131, 90.3%), spicy foods (n=124, 85.5%), raw foods (n=109, 75.2%), cold foods (n=100, 69%), and sikhye (traditional sweet Korean rice beverage) (n=100, 69%). Most mothers (n=122, 84.1%) avoided foods for vague reasons. Conclusion: Most mothers restricted certain foods unnecessarily. Literature review identified no foods that mothers should absolutely avoid during breastfeeding unless the infant reacts negatively to the food.

• Journal of Computing Science and Engineering
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• v.7 no.4
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• pp.231-241
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• 2013

Improvements in wireless sensor network (WSN) technology have resulted in a large number of applications. WSNs have been mainly used for monitoring applications, but they are also applicable to target tracking, health care, and monitoring with multimedia data. Nodes are generally deployed in environments where the exhausted batteries of sensor nodes are difficult to charge or replace. The primary goal of communication protocols in WSNs is to maximize energy efficiency in order to prolong network lifetime. In this paper, various medium access control (MAC) protocols for synchronous/asynchronous and single/multi-channel WSNs are investigated. Single-channel MAC protocols are categorized into synchronous and asynchronous approaches, and the advantages and disadvantages of each protocol are presented. The different features required in multi-channel WSNs compared to single-channel WSNs are also investigated, and surveys on multi-channel MAC protocols proposed for WSNs are provided. Then, existing broadcast schemes in such MAC protocols and efficient multi-hop broadcast protocols proposed for WSNs are provided. The limitations and challenges in many communication protocols according to this survey are pointed out, which will help future researches on the design of communication protocols for WSNs.

• Journal of The Korean Digital Architecture Interior Association
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• v.9 no.1
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• pp.49-59
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• 2009

This study examined the programs of public library and the spaces for them in Seoul and Gyunggi area. The examination was performed by making field surveys on 12 sample public libraries and posing user questionnaires on 4 libraries out of the sample. The data from the questionnaire survey were processed and analyzed with SPSS 14.0. The results are as follows: First, according to the arrangement of the furniture, the space usages for the programs in public libraries are divided into four classes, one-way exposure: free of furniture: two-way exposure. The one-way exposure has been the most common though the furniture arrangement varies with the characteristics of a program. Second, language or information technology related programs are the most frequently attended programs in public libraries. Lastly, the space usage for the reading education programs has had the highest level of the user satisfaction measurement while the user satisfaction is lower in those for general culture programs and health care programs.

• Journal of Korean Academy of Nursing Administration
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• v.13 no.3
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• pp.362-372
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• 2007

Purpose: This study was performed to identify the perception gaps of nursing services quality between consumers and providers, and identify the perceived influences of nursing services quality on general satisfaction of medical services and revisiting intent of hospital by consumers. Method: The Joo's questionnaire founded on SERVQUAL was modified and distributed to 300 patients and nurses at 6 general hospitals in 5 provincial cities, Korea. Result: It is identified that the perception gaps between consumer and providers exist, and consumers perceive nursing services quality has a influences on general satisfaction of medical services and revisiting intent of hospital. And it is also identified that consumers also perceive general satisfaction of medical services has a powerful influences on revisiting intent of hospital. Conclusion: It is concluded that the marketing strategies being based on the perception gaps between consumers and providers should be specifically planned and applied to improve the perceived nursing services quality by consumers. And it is needed to accurately identify the impact attributes and factors of nursing services quality on general satisfaction of medical services and revisiting intent of hospital that consumers perceive.

• Journal of Oral Medicine and Pain
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• v.43 no.3
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• pp.77-83
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• 2018

Purpose: The present study was designed to investigate the association of ponticulus posticus (PP) and elongated styloid process (ESP) with headaches. Methods: Analysis of head and neck cone beam computed tomography samples from the archives of the Department of Oral Radiology was done for the presence of partial or complete PP and ESP length, type, thickness, mediolateral angulation, anterioposterior angulation (horizontal & vertical), lateral or medial curvature. This was followed by personal & telephonic questionnaires to the subjects for the evaluation of the presence of headaches & other associated symptoms. Results: Among 134 subjects, 62 subjects (46.3%) presented with headache and 72 subjects (53.7%) did not have any headache. On further analysing the total 62 subjects with headache, it was found out that 31 subjects (50.0%) of them had ESP and PP both, 16 subjects (25.8%) had only ESP, and 15 subjects (24.2%) had only PP. A strong association was present between headache and presence of PP & ESP individually and together. Conclusions: All health care professionals dealing with the head and neck pain disorders should also consider the presence of ESP & PP during diagnosis and treatment.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.1
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• pp.229-237
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• 2021

This study aimed to help build a quality control program to improve cardiac arrest treatment via analysis of medical records in a local tertiary general hospital to evaluate factors that influence clinical outcomes of in-hospital cardiac arrest. At first, the medical records of in-hospital cardiac arrest were analyzed, and targeted surveys about functional and structural factors associated with cardiopulmonary resuscitation (CPR) were conducted amongst the workforce in charge of cardiac arrest treatment. From January 2012 through June 2013, a total of 486 adult cases of in-hospital cardiac arrests, except for those occurring in the emergency room, were enrolled in this study. Among the patients, those of recovery of spontaneous circulation were 57.8%; 13.8% of patients were discharged alive; 8.9% of patients were discharged without significant neurologic sequela. Despite CPR is usually successful when administered as quickly as possible, in this analysis showed that prompt reaction after initial recognition was significantly lower in nurses compared with doctors. Analysis of survey results showed that confidence in performing CPR was significantly associated with the experience of CPR in doctors, while in nurses educational experience showed a correlation. In order to improve quality of in-hospital CPR system maintaining and increasing confidence of CPR performance is the most important factor. Therefore it can be helpful to develop and apply a phased, customized education program using training simulators as well as personalizing them to increase the personnel's confidence in CPR performance.