• 한국지구과학회지
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• 제42권1호
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• pp.118-131
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• 2021

본 연구의 목적은 중학교 영재 학생들이 수행한 증거 기반 추론의 특징을 조사하는 것이었다. 연구를 위한 자료는 수도권에 위치한 한 대학교의 영재 교육원에서 중학교 영재 학생들이 비대면 방식으로 진행한 탐구 과제를 통해 수집되었다. 학생들에게 수성의 최대 이각을 관측한 자료를 제공하고 이 자료를 이용하여 수성의 공전 궤도를 작도하게 하였다. 또, 작도 전에 수성의 궤도에 대한 자신의 가설을 진술하게 하였으며 작도 결과를 증거로 삼아 수성 궤도의 모양을 추론하게 하였다. 학생들이 제출한 보고서의 내용을 분석하여 수성의 공전 궤도 모양에 관한 판단 유형을 5가지로 분류하고 가설 및 증거에 관한 추론 유형을 4가지로 분류한 후, 판단 유형에 따른 증거 기반 추론의 특징을 정리하였다. 분석 결과를 토대로, 증거 기반 추론에서는 증거에 대한 적절한 해석이 중요하고, 이론과 증거의 조화가 핵심적인 역할을 하며, 복수의 가설을 상정하는 것이 유리할 수 있음을 논의하였고, 지구과학 교육을 위한 시사점을 제안하였다.

• 디지털산업정보학회논문지
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• 제15권4호
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• pp.111-116
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• 2019

The digital forensic analysis ensures the integrity of confiscated data by calculating hash values for seizure and search of digital evidence and receiving confirmation and signature from participants. However, evidence that is irrelevant to the alleged offense needs to be deleted even after seizure from the point of view of privacy. But the hash value is altered by deleting the irrelevant data from the image file, one will not be able to prove that the file is in the initial state when it was seized. Therefore, in this paper, a study was conducted to support the integrity of the digital evidence, even if some of the seized digital evidence was deleted or damaged during the seizure search. The hash value of each data is calculated and hash value of the combination of hash values are also calculated. Even if the unrelated evidence is deleted from the seized evidence regardless of file system such as FAT or NTFS, the suggested method presented a way to provide the integrity that proves there is no change in the evidence file.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.269-272
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• 2011

스마트폰에 대한 소송이 이루어지고 있고, 최근, 법정에서의 스마트폰 증거데이터에 대한 증거자료 채택이 많아지고 있다. 따라서 불법적인 스마트폰 사용에 대한 증거데이터 추출을 위한 포렌식 절차와 증거물 수집에 대한 연구가 필요하다. 본 논문에서는 스마트폰의 증거데이터 주출에 대한 포렌식 절차를 제시하고, 스마트폰 포렌식 증거를 수집함으로써 디지털 증거의 무결성을 확보하고 사건을 진실을 발견하기 위한 방법에 대해 연구하였다. 본 연구를 통해 스마트폰 포렌식의 발전에 기여할 수 있을 것이다.

• 성인간호학회지
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• 제28권1호
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• pp.83-94
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• 2016

Purpose: The purpose of this study was to explore how knowledge management of hospital and nurses' beliefs and competences on evidence-based practice can affect evidence-based decision making. Methods: In this descriptive study, a total of 184 nurses who were working in the five general hospitals participated. The data were collected through a self-administered questionnaire in September, 2014. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficient, and step-wise multiple regression with SPSS/WIN Statistics 21.0 program. Results: Evidence-based decision making was correlated with EBP beliefs (r=.55, p<.001), EBP competence (r=.57, p<.001), and knowledge management (r=.50, p<.001). Hierarchical regression analysis showed that EBP beliefs (${\beta}=.18$, p=.005), EBP competence (${\beta}=.37$, p<.001), organizational knowledge management (${\beta}=.27$, p<.001) explained 48.6% of evidence based decision making (p<.001). Conclusion: The study results indicated that evidence-based practice competences, organizational knowledge management, and evidence-based practice beliefs were important factors on evidence-based decision making. In order to improve evidence-based practice among nurses through organizational knowledge management, EBP beliefs and competence at individual level need to be considered and incorporated into any systemic training of EBP.

• 한국식생활문화학회지
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• 제35권2호
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• pp.181-192
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• 2020

This study aimed to identify whether or not four service situations varying according to positive and negative combinations of physical evidence and functional service influence store image and purchase behavioral intentions of customers at bulgogi restaurants. The video-scenario technique was used for the study. Data were analyzed with the SPSS (Window 19.0) package using frequency analysis, one-way ANOVA, 2 by 2 factorial ANOVA, exploratory factor analysis, and multiple regression analysis to confirm the hypotheses. The combined effect of functional service and physical evidence influenced store image and purchase intention. In terms of seperate effect of physical evidence and functional service, the effect of employee service on store image was more powerful than that of physical evidence, even though the effect differed depending on the situation. Purchase intention was only influenced by functional service quality from employees under the four different scenarios. Thus, when opening a Korean restaurant, proper management of tangible evidence suitable to service, and the prices expected from local customers should be determined. Additionally, extremely high or low levels of physical evidence management should be avoided.

• 임상간호연구
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• 제27권1호
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• pp.35-44
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• 2021

Purpose: The aim of this study was to identify the individual, job, and organizational factors affecting the individual innovative behaviors among tertiary care hospitals' nurses. Methods: The participants in this study were 230 nurses who have worked more than one year in tertiary care hospitals. Data were collected using self-administered questionnaires that included individual factors (self efficacy, and empowerment), job factors (knowledge and skills for evidence-based practice, and beliefs for evidence-based practice), organizational factors (perceived organizational support), and individual innovation behavior. The SPSS/WIN 25.0 program was used for data analysis which included descriptive analysis, t-test, ANOVA, Scheffé test, Pearson's correlation coefficient, and hierarchical regression analysis. Results: Individual innovative behavior had significant positive correlations with all of individual, job, and organizational factors. The results of hierarchical regression analysis showed that knowledge and skills for evidence-based practice (β=.28, p<.001), self efficacy (β=.25, p=.002), gender (female, β=.23, p<.001), and beliefs for evidence-based practice (β=.17, p=.016) were significant factors influencing on individual innovative behavior. Conclusion: These findings suggest that knowledge, skills and beliefs for evidence-based practice, and self efficacy were linked to individual innovative behaviors. Therefore, education and human resource management improving self efficacy, knowledge, skills and beliefs for evidence-based practice are needed to increase nurses' individual innovative behaviors in tertiary care hospitals.

• International journal of advanced smart convergence
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• 제2권2호
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• pp.36-39
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• 2013

It is becoming more important as the growing of health information and increasing in cancer patients diagnose over the time gradually. Among the various types of cancer, we focuses on breast cancer diagnosis. The accuracy of breast cancer diagnosis is increasing when the diagnosis is based on evidence and statistics. To do this we use the weka data mining tools and analysis algorithms significantly associated with the decision tree uses rules. In addition, the data pre-processing and cross-validation are used to increase the reliability of the results. The number and cause of the disease becomes important to increase evidence-based medical doctors. As the evidence-based medical, the data obtained from patients in the past through the disease by calculating the probability for future patients to diagnose and predict disease and treatment plan. It can be found by improving the survival rate plays an important role.

• 대한간호학회지
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• 제50권6호
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• pp.863-875
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• 2020

Purpose: This study was conducted to develop and test the effects of a program for practice application of intravenous infusion evidence based nursing practice (EBP) guidelines in small and medium-sized hospitals. Methods: A mixed method research design was used, combining non-equivalent control group pre-post test design with qualitative study analysis. The subjects consisted of 55 nurses. The practice application program was developed based on the Advancing Research and Clinical practice through close Collaboration (ARCC) model. Data were collected for analysis in the following areas: nurses' EBP organizational culture and readiness, EBP beliefs, EBP implementation, importance about intravenous infusion, and performance about intravenous infusion, with data assessed using valid and reliable instruments. Patient outcomes were collected from the hospital's medical records. Data were analyzed using t-test, χ2-test, and Shapiro-Wilk test, with qualitative content analysis used for interview data. Results: Following the intervention, nurses' EBP organizational culture and readiness, EBP beliefs, EBP implementation, and performance of intravenous infusion and perceptions of its importance showed significant improvement in the experimental group. Phlebitis rates decreased in the experimental group compared to the control group. Conclusion: This program is effective to improve nurse's perception and practice of evidence based nursing. Therefore we recommend to use this program at same levels of hospitals.

• 한국식품조리과학회지
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• 제24권3호
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• pp.367-374
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• 2008

The principal objective of this study was to determine the influence of physical evidence's performance on perception of value at family restaurants in Seoul. Frequency analysis, t-test, ANOVA, reliability analysis, factor analysis, multiregression analysis were employed to analyze the data. The physical evidence was divided into 3 factors. Factor 1, 'matters related to appearances and decoration'; and Factor 3, matters related to atmosphere' differed significantly with monthly pocket money. However, all factors differed significantly by partner. Additionally, all factors positively(+) influenced customer's perception of value. In particular, factor 1, 'matters related to appearances and decoration' was the most positive factor. As a result, physical evidence can be regarded as efficient marketing tactic by which the intangible factors of restaurant-business may be removed. Therefore, food-service companies should endeavor to manage physical evidence ideally as a means of reducing the negative characteristics of service toward customers and inducing customers perceptions of value at family restaurants.

• Journal of Preventive Medicine and Public Health
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• 제46권4호
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• pp.201-209
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• 2013

Objectives: The goal of this study was to perform an economic analysis of a primary stenting with drug-eluting stents (DES) compared with bare-metal stents (BMS) in patients with acute myocardial infarction (AMI) admitted through an emergency room (ER) visit in Korea using population-based data. Methods: We employed a cost-minimization method using a decision analytic model with a two-year time period. Model probabilities and costs were obtained from a published systematic review and population-based data from which a retrospective database analysis of the national reimbursement database of Health Insurance Review and Assessment covering 2006 through 2010 was performed. Uncertainty was evaluated using one-way sensitivity analyses and probabilistic sensitivity analyses. Results: Among 513 979 cases with AMI during 2007 and 2008, 24 742 cases underwent stenting procedures and 20 320 patients admitted through an ER visit with primary stenting were identified in the base model. The transition probabilities of DES-to-DES, DES-to-BMS, DES-to-coronary artery bypass graft, and DES-to-balloon were 59.7%, 0.6%, 4.3%, and 35.3%, respectively, among these patients. The average two-year costs of DES and BMS in 2011 Korean won were 11 065 528 won/person and 9 647 647 won/person, respectively. DES resulted in higher costs than BMS by 1 417 882 won/person. The model was highly sensitive to the probability and costs of having no revascularization. Conclusions: Primary stenting with BMS for AMI with an ER visit was shown to be a cost-saving procedure compared with DES in Korea. Caution is needed when applying this finding to patients with a higher level of severity in health status.