• 한국학교ㆍ지역보건교육학회지
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• 제22권4호
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• pp.1-10
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• 2021

Background & objectives: Understanding the awareness of policy targets and implementers about safety in the local community is the crucial to establish a systematic community safety policy. The purpose of this study was to identify the perception of local citizens and civil servants regarding community safety and its related factors. Methods: For achieving this research goal, this study conducted survey targeting 538 citizens and 404 civil servants in S-si, Kyunggi-do. Self-administred and web-based survey were used to collect data from April 1^st to 16^th 2021. Results: Civil servants scored higher in community safety perception than citizens, and S city's safety interest, information, and participation scores were also higher than those of citizens. Based on the results of multiple regression, thought about in interest of safety in S-si, providing and sharing about safety information to citizens, and participation of community safety policy were significantly associated with perception of community safety. Conclusions: Setting safety as the top priority in S city policy and paying attention to safety by the mayor, public officials, and city council members is an important way to raise citizens' awareness of local safety. Also, efforts at the city level are needed to foster safety knowledge through systematic education on safety.

• 대한통합의학회지
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• 제12권2호
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• pp.155-166
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• 2024

Purpose : This study aims to identify key factors for predicting dropout risk at the university level and to provide a foundation for policy development aimed at dropout prevention. This study explores the optimal machine learning algorithm by comparing the performance of various algorithms using data on college students' dropout risks. Methods : We collected data on factors influencing dropout risk and propensity were collected from N University. The collected data were applied to several machine learning algorithms, including random forest, decision tree, artificial neural network, logistic regression, support vector machine (SVM), k-nearest neighbor (k-NN) classification, and Naive Bayes. The performance of these models was compared and evaluated, with a focus on predictive validity and the identification of significant dropout factors through the information gain index of machine learning. Results : The binary logistic regression analysis showed that the year of the program, department, grades, and year of entry had a statistically significant effect on the dropout risk. The performance of each machine learning algorithm showed that random forest performed the best. The results showed that the relative importance of the predictor variables was highest for department, age, grade, and residence, in the order of whether or not they matched the school location. Conclusion : Machine learning-based prediction of dropout risk focuses on the early identification of students at risk. The types and causes of dropout crises vary significantly among students. It is important to identify the types and causes of dropout crises so that appropriate actions and support can be taken to remove risk factors and increase protective factors. The relative importance of the factors affecting dropout risk found in this study will help guide educational prescriptions for preventing college student dropout.

• 한국식품조리과학회지
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• 제30권2호
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• pp.219-227
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• 2014

The objective of this study was to research the health status of the elderly population and their perception and compliance to cook medicated juk. The results from this research will be used as basic data for medicated juk development. In addition, the purpose of this study was to find a way to popularize the juk and improve their usage as medicated juk in communal feeding and convalescent hospital for elderly. The study surveyed 300 elderly residents of age over 65, in Daejeon. The following data were collected: general characteristic, health status, perception of medicated juk, and preferred kind of juk for cooking. Moreover, the study researched the constraints in cooking the juk. Data were analyzed by SPSS Windows V. 18.0 and t-test verified the differences among the questions, according to frequency analysis of each item and characteristics of the aged. You might want to specify this characteristic. Within the surveyed elderly population, 80.6% had various existing diseases with circulatory diseases being the most prevalent with 68.9%. This emphasizes on the significance of proper diet, but this recognition is not put into practice. The survey also showed that as the individuals age, they tend to care less about the necessity of proper diet. Despite of this lack of perception, 84.5% of the elderly population responded positively to the question, "Would you like to have medicated juk for curing diseases, if such juk is available?" In addition, the elderly population was in favor of developing the juk that helps to prevent and cure diseases, and many were willing to cook them. The reasons behind their will to cook are arranged in the following order: higher efficacy in curing disease than regular juk, excellence in nutrition, and unavailability of the medicated juk in the stores that requires them to cook. The sources constraining the elderly population in cooking are arranged in the following order: not knowing how to cook the juk, lack of physical strength, financial burden, and lack of information order. Please clarify this part. Suggested change: not knowing what medicated juk is. Furthermore, the main obstacle in cooking the juk is lack of cooking technique, followed by inaccessibility to the ingredients and the financial burden to purchase the ingredients.

• 실천공학교육논문지
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• 제15권2호
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• pp.449-457
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• 2023

본 서술적 조사연구의 목적은 대학생의 호흡기감염 예방행위에 영향을 미치는 요인으로 건강신념과 호흡기 감염관리 자기효능감을 알아보고자 시도되었다. 대상자는 경상북도 K 시 일개 대학에 재학 중인 학생 178명으로 2020년 9월 1일부터 10월16일까지 구조화된 설문지로 자료를 수집하였다. 연구결과는 다음과 같다; 건강신념은 참여자의 성별(t=-2.86, p=.005), 전공계열(F=2.95, p=.034), 처방된 약물 복용 유무(t=2.18, p=.030)와 유의한 차이가 있었다. 호흡기 감염관리에 대한 자기효능감은 대학생의 성별(t=-3.56, p=<.001), 전공계열(F=4.59, p=.004)과 유의한 차이가 있었다. 건강신념(r=.276, p<.001)과 호흡기 감염관리에 대한 자기효능감(r=.195, p<.001)은 호흡기감염 예방행위에 정적 상관이 있었다. 다중회귀분석 결과 호흡기 감염관리에 대한 자기효능감(β=.66, p<.001)이 호흡기감염 예방 행동에 유의한 영향을 미치는 것으로 나타났고, 모형의 설명력은 43%로 나타났다. 따라서, 대학생의 호흡기감염을 예방하기 위한 행동을 촉진하기 위해서는 호흡기 감염관리에 대한 자기효능감을 강화할 수 있는 프로그램이 개발되어야 할 것이다.

• 한국방사선학회논문지
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• 제17권1호
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• pp.149-156
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• 2023

보리의 생산년도에 따른 생장과 광합성 차이를 알아보고자 질병의 진단 및 치료에 가장 많이 이용하는 고에너지 X-선을 묵은보리씨앗과 햇보리씨앗에 조사하여 연구를 수행하였다. 묵은보리와 햇보리 종자가 싹이 튼 것을 확인 후, 대조군을 제외한 실험군에 대해 방사선종양학과의 선형가속기(Clinac IS, VERIAN, USA, 2011)를 이용하여 30 Gy X-선을 조사하였다. 조사 조건은 6 MV X-ray, 조사거리(Source-surface distance) 100 cm, 조사면적(field size) 18 × 10 cm², 선량률(dose rate) 600 MU/min 에서 실시하였다. 보리의 생장은 종자별로 X-선 조사 후 4일차 부터 1일 간격으로 9일차 까지 줄기의 길이를 측정하였다. X-선이 보리 싹의 엽록소 형성에 미치는 영향을 알아보기 위하여 분광광도법을 이용하여 클로로필 a 농도를 측정하였다. 통계분석은 SPSS ver 26.0(Chicago, IL, USA)을 사용하여 독립표본 T-검정(Independent T-test)을 실시하였다. 대조군에서는 햇보리가 묵은보리 보다 성장이 빨랐지만, 실험군에서는 묵은보리가 햇보리 보다 빠른 성장을 보였다. 묵은보리에서 대조군의 길이가 실험군 보다 모든 일차에서 유의하게 큰 것으로 나타났다. 대조군에서는 묵은보리 보다 햇보리의 무게가 무거웠지만, 실험군에서는 묵은보리의 무게가 햇보리 무게 보다 높았다. 클로로필 농도를 측정하여 비교한 결과, 대조군 실험군 모두 묵은보리 보다 햇보리가 높은 결과를 보였고, 대조군 보다 실험군이 높게 나타났다. X-선은 햇보리 보다 묵은보리의 성장과 무게를 촉진시켰고, 클로로필 농도에는 햇보리에게 더 큰 영향을 미치는 것으로 나타났다. 이와 같은 결과는 향후 X-선이 새싹보리에 미치는 영향에 대한 연구의 기초 자료로 사용될 수 있을 것이다.