• The Journal of the Korean dental association
• /
• v.45 no.2 s.453
• /
• pp.89-102
• /
• 2007

Evidence-based dentistry is a new, worldwide trend in the field of clinical dentistry. Despite this fact, it has been neglected in Korean dental community. Thus, its basic concepts and the 5-step procedures are introduced and described in this 2-part series report. Evidence-based dentistry is a method of clinical practice where the clinicians use the best available research evidence for their own clinical decision making. By using this method, the clinical outcomes can be improved and the clinicians themselves can have the ability to keep watch over their daily practices. To clinically apply the principles of evidence-based dentistry, dental practitioners have to formulate a clear question, find the best available research evidence efficiently, critically appraise the evidence systematically, apply the results of the evidence to their practice, and evaluate the clinical outcomes comprehensively. In building a clinical question, it is essential to categorize questions according to their types followed by their organization using the key elements. Then, literature search must be done. There are many web sites for searching evidence, but PubMed is considered to be the leading site. To efficiently search the literature, search term must be selected appropriately and the search results should be limited.

• The Korean Journal of Pain
• /
• v.28 no.2
• /
• pp.75-87
• /
• 2015

Background: Lumbar discogenic pain without pain mediated by a disc herniation, facet joints, or the sacroiliac joints, is common and often results in chronic, persistent pain and disability. After conservative treatment failure, injection therapy, such as an epidural injection, is frequently the next step considered in managing discogenic pain. The objective of this systematic review is to determine the efficacy of lumbar epidural injections in managing discogenic pain without radiculopathy, and compare this approach to lumbar fusion or disc arthroplasty surgery. Methods: A systematic review of randomized trials published from 1966 through October 2014 of all types of epidural injections and lumbar fusion or disc arthroplasty in managing lumbar discogenic pain was performed with methodological quality assessment and grading of evidence. The level of evidence was based on the grading of evidence criteria which, was conducted using 5 levels of evidence ranging from levels I to V. Results: Based on a qualitative assessment of the evidence for both approaches, there is Level II evidence for epidural injections, either caudal or lumbar interlaminar. Conclusions: The available evidence suggests fluoroscopically directed epidural injections provide long-term improvement in back and lower extremity pain for patients with lumbar discogenic pain. There is also limited evidence showing the potential effectiveness of surgical interventions compared to nonsurgical treatments.

• Journal of The Korean Association For Science Education
• /
• v.25 no.2
• /
• pp.111-121
• /
• 2005

The purpose of this study was to analyze characteristics of experimental design and evidence choice of the elementary school students in problem solving process related to controlling variable. For this study, 96 6th grade students were selected and tested with Science Reasoning Task. This study revealed that the types of experimental design were categorized as variance of control variable, controlling of causal variable, perfect controlling variable, imperfect controlling variable, variance of all variable. Prior belief had a strong influence on student's experimental design. The types of evidence choice were categorized as perfect controlling variable, controlling causal variable, variance of causal variable. The degree of controlling variable in evidence choice process was much lower than that in experimental design. Most students tended to choose evidence according to prior belief without controlling variable. The results of this study implied that student's prior belief and characteristic of science process skills should be considered to develop program for promoting controlling variable ability.

• Journal of Advanced Navigation Technology
• /
• v.18 no.1
• /
• pp.50-55
• /
• 2014

Recently, importance of digital forensics has increased and using analysis methods of digital evidence in the analysis of evidence of various types. However, analysis time and effort is steadily increasing because personal disk capacity is too big and it has many number of files. Most digital evidence has time property, such as access time, creation time, and modification time. These time information of digital evidence is one of most important factors in the digital forensic area. But if digital examiner simply analyze based on binary source only, it is possible to have wrong result because time has various types. In this paper, we classify various type of time in the digital evidence and describe advanced analysis method based on timeline chart for digital forensic investigation.

• Journal of the Korea Society of Computer and Information
• /
• v.24 no.3
• /
• pp.87-93
• /
• 2019

In this paper, we propose a real-time drone-based violent protest detection system. Our proposed system uses drones to detect scenes of violent protest in real-time. The important problem is that the victims and violent actions have to be manually searched in videos when the evidence has been collected. Firstly, we focused to solve the limitations of existing collecting evidence devices by using drone to collect evidence live and upload in AWS(Amazon Web Service)[1]. Secondly, we built a Deep Learning based violence detection model from the videos using Yolov3 Feature Pyramid Network for human activity recognition, in order to detect three types of violent action. The built model classifies people with possession of gun, swinging pipe, and violent activity with the accuracy of 92, 91 and 80.5% respectively. This system is expected to significantly save time and human resource of the existing collecting evidence.

• Journal of The Korea Institute of Healthcare Architecture
• /
• v.17 no.1
• /
• pp.41-50
• /
• 2011

This paper assesses the evidence of the built environments' impact on patients' and staff's well-being. It also introduces evidence-based design (EBD) and discusses barriers and solutions for promoting EBD. EBD is an informed approach to design by improving design decisions based on best available knowledge. Designers should provide psychologically and physically supportive environments to promote occupants' well-being. There is increasing evidence that a poorly designed environment elicits negative feelings and stress. Better design will lead to better outcomes especially when it applied to a vulnerable population such as patients, children, and the elderly. Due to high demands of promoting patients' health, healthcare providers and professional designers have been searching for evidence to create healing environments. EBD has been well received in healthcare facilities design and is expanding to other types of environmental design such as educational and commercial design. Design firms should consider EBD as a value-added component of design to meet current and future challenges. It is important for designers to realize that engaging in EBD is not a rejection of creativity, but a means by which to scrutinize their design projects. With critical literature reviews on healing environments, there is sufficient evidence that well-designed environments can promote patients' and medical staff's health outcomes.

• Educational Technology International
• /
• v.12 no.2
• /
• pp.19-46
• /
• 2011

The purpose of the study was to identify the characteristics of classroom inquiry features exhibited on a web-based discussion board, which is called the Message Board. Approximately 4,000 students from 80 schools with 60 on-line scientists were participated in the study. During the study, a total of 639 messages in the selected cluster and several patterns were identified and analyzed. Three main features of the classroom inquiry were analyzed in terms of: 1) learner gives priority to evidence in responding to questions; 2) learner formulates explanations from evidence; 3) learner communicates and justifies explanations. The results are as follow. First, once learners identified and understood the questions posed by the curriculum, they needed to collect evidence or information in responding to the questions. Depending on the question that students were given, types of evidence/data students needed to collect and how to collect the data could vary. Second, students' formulated descriptions, explanations, and predictions after summarizing evidence were observed on the Message Board. However, the extent to which students summarized evidence for descriptions, explanations, and predictions varied. In addition, students were able to make a better use of evidence over time when they formulate descriptions and explanations. Third, the Message Board was designed to allow the great amount of learner self-direction. Classroom teachers and on-line scientists played an important role in providing guidance in developing inquiry. At the same time, development of content understanding also contributed to inquiry development.

• The Journal of Health Technology Assessment
• /
• v.6 no.2
• /
• pp.88-94
• /
• 2018

This review aims to provide implications for relevant domestic policies and researches from Patient-Centered Medical Home (PCMH), a reinforcement model for primary care and its evaluations in the United States. As chronic diseases became dominant, changes in the health care delivery system in which primary care is central was required. The United States initiated primary care-reinforcing policies based on the PCMH following the increased demand for evidence-based health care policies. The current activities of the United States such as sharing research tools used to evaluate primary care interventions and circulating evaluation findings provide examples to Korea. Systematic evaluations for primary care interventions are required and appropriate methods using various types of data to reflect the real-world settings should be prepared. It is necessary to conduct policy assessment studies of public interests considering regional context. Support for the researches to make and advance from the existing environment must be examined.

• Journal of Radiation Protection and Research
• /
• v.47 no.2
• /
• pp.93-98
• /
• 2022

Background: This study aims to derive the characteristics of each work type for industrial radiography based on empirical evidence through expert advice and a survey of radiation workers of various types of industrial radiography. Materials and Methods: According to a Korean report, work types of industrial radiography are classified into indoor tests, underground pipe tests, tests in a shielded room (radiographic testing [RT] room test), outdoor field tests, and outdoor large structure tests. For each work type, exposure geometry and radiation sources were mainly identified through the expert advice and workers' survey as reliable empirical evidence. Results and Discussion: The expert advice and survey results were consistent as the proportion of the work types were high in the order of RT room test, outdoor large structure test, underground pipe test, outdoor field test, and indoor test. The outdoor large structure test is the highest exposure risk work type in the industrial radiography. In most types of industrial radiography, radiation workers generally used ¹⁹²Ir as the main source. In the results of the survey, the portion of sources was high in the order of ¹⁹²Ir, X-ray generator, ⁶⁰Co, and ⁷⁵Se. As the exposure geometry, the antero-posterior geometry is dominant, and the rotational and isotropic geometry should be also considered with the work type. Conclusion: In this study, through expert advice and a survey, the external exposure characteristics for each work type of industrial radiography workers were derived. This information will be used in the reconstruction of organ dose for health effects assessment of Korean radiation workers.

• Journal of Korean Biological Nursing Science
• /
• v.14 no.3
• /
• pp.221-230
• /
• 2012

Purpose: Quality of nursing research should be evaluated before it is applied as an evidence for evidence-based nursing practice. This study attempted to analyze and to compare tools for the quality assessment and reporting standards of nursing research using CONSORT and STROBE checklist by types of research design. Methods: We searched the tools for quality assessment in nursing research based on the National Evidence-based Healthcare Collaborating Agency (NECA) publication. Then, we analysed and compared the tools for quality evaluation by types of research design. Results: According to the analysis using CONSORT checklist, ROB shows coherence in 17 items, Jadad shows coherence in 3 items, SIGN (for RCT) shows coherence in 26 items, and Downs & Black shows coherence in 24 items. According to the analysis using STROBE checklist, MINORS shows coherence in 25 items, NOS shows coherence in 21 items, SIGN (for Cohort studies & Case-control studies) shows coherence in 29 items, and RoBANS shows coherence in 21 items. Conclusion: Based on our analysis, we recommend that nursing researchers should report according to the reporting standards of tools for quality evaluation. We hope that our analysis can be helpful to develop evidence-based nursing.