• 한국작물학회지
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• 제43권4호
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• pp.250-253
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• 1998

Somaclonal variation was observed in the field on doubled haploid plants derived from single pollen of a rice cultivar "Hwaseongbyeo". The variations of seven quantitative traits including plant height and one qualitative trait (pubescence) in 436 lines ($R_2$ generation) were analyzed. The number of lines which fell beyond the boundaries of the 95% confidence intervals of the check variety, Hwaseongbyeo was checked for each quantitative trait, and of those fertility showed the highest variation frequency (85.6%), followed by plant height (77.5%), flag leaf length (66.5%), grains per panicle (42.2%), days to heading (34.5%), panicle length (30.7%) and panicles per hill (22.7%). And the variations of quantitative traits except days to flowering appeared to move in the negative direction compared to "Hwaseongbyeo". Variability within lines was also observed for quantitative and qualitative traits. Twenty-nine $R_2$ lines (7%) segregated for pubescence and 130 $R_2$ lines (30%) showed variation with regard to fertility. This suggests that mutations usually occur before diploidization. Twenty-nine $R_2$ lines representing a wide spectrum of variation were chosen for RAPD analysis. The number of lines showing DNA polymorphism compared to Hwaseongbyeo ranged 0 from to 10 according to the primer used and this seems to indicate that specific loci have highly mutable genomic site.utable genomic site.

• Physical Therapy Rehabilitation Science
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• 제12권1호
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• pp.48-55
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• 2023

Objective: The purpose of this study is to compare the effects of extracorporeal shock wave therapy (ESWT) and injection therapy through qualitative and quantitative analysis by synthesizing randomized controlled trials (RCTs) conducted on patients with various shoulder diseases. Design: A systematic review and meta-analysis of randomized controlled trials Methods: This review conducted a literature search through international electronic databases in January 2023 to compare the effects of ESWT and injection therapy. Qualitative analysis was performed as a risk of bias tool, and quantitative analysis was synthesized with a random effect model to show the effect size as a standardized mean difference (SMD). Results: Five RCTs involving 298 individuals with shoulder disorders were included in this systematic review and meta-analysis. ESWT showed a moderate effect on pain (SMD=-0.44; 95% CI, -0.95 to 0.06) and a large effect on shoulder function (SMD =-0.81; 95% CI, -1.70 to 0.07) than injection therapy. A significant difference was found in the shoulder range of motion, showing a large effect size (SMD=1.50; 95% CI, 0.58 to 2.43). Conclusions: When considering treatment options for the management of patients complaining of shoulder disorders, it is appropriate to recommend ESWT first rather than injection therapy to increase the range of motion of the joint. In addition, ESWT is safe for pain control and shoulder function improvement, and a positive prognosis could be expected.

• 대한방사선기술학회지:방사선기술과학
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• 제44권5호
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• pp.443-449
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• 2021

In this study, the purpose is to present the foot inclination angle for realizing an image similar to that of the existing examination method and to present the clinical usefulness of the new examination method through comparison between the existing examination method and the newly designed standing foot oblique projection. A foot phantom was used, and the magnification of the image according to the angle was quantitatively evaluated by attaching a nut to the position of the cuboid of the phantom. The internal oblique image acquired using a 30° wedge was set as the standard image. And that image was compared with the images acquired by changing the angle of the foot from 20° to 65° at intervals of 5°. Image evaluation was performed by 3 radiological technologists, and qualitative evaluation using a Likert 5-point scale for evaluation items of true oblique view and quantitative evaluation of the value obtained by measuring the diameter of a nut in each image were performed as image evaluation. For data analysis, reliability analysis between the measure and comparative analysis of the average value for each angle were performed. The qualitative evaluation score for each image was 4.5 to 5 points for most questions in the case of the standard image. And 4 points or less for most questions in the images with a foot angle of 45° or less, and an evaluation score close to the standard image was obtained in the image of 50° or more. And in the quantitative evaluation, the diameter of the nut was measured to be 9.28~9.56 mm. The qualitative evaluation showed a reliability of 0.95~1.0 and the quantitative evaluation was 0.62. As a result of comparing and analyzing the average of the quantitative and qualitative average values for each angle image, the group with the average value most similar to the standard image was images obtained at 55° and 60°, and in the post-analysis, the images of both groups were the same group as the standard image(p<0.01). As a result of this study, it was found that the angle of inclination of the foot for realizing the image most similar to the existing image in the standing foot oblique projection is 55°~60°. In addition, if this test method is applied to the clinic, it is believed that it will help prevent safety accidents such as falls during the test and improve test efficiency by minimizing the movement of patients for the test.

• 분석과학
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• 제27권3호
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• pp.153-160
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• 2014

세계적으로 석면분석방법에 관한 다양한 연구사례가 발표되고 있는 가운데, 분석방법의 차이에 따른 석면함유물질(ACM, Asbestos Containing Material) 결과에 대한 관심이 대두되고 있다. 본 연구에서는 균질성이 확보된 ACM 시료를 시야평가법(visual estimation method)과 포인트계수법(point counting method)의 분석결과에 대한 비교 평가를 통하여 분석기관 및 분석자의 신뢰성 향상과 더불어 편광현미경 분석의 기초자료를 확보고자 하였다. 석면분석은 정성분석과 정량분석으로 구분하였으며, 석면정량을 위한 방법은 EPA 600-R-93-116의 시야평가법과 포인트계수법으로 총 400지점을 계수하는 방법으로 실시하였다. 먼저 준비된 시료의 균질성을 분산분석을 이용하여 확인한 결과 이상이 없음을 확인하였다. 정성분석의 결과는 백석면과 갈석면으로 확인되었고 정량분석결과는 포인트계수법이 시야평가법과 비교하여 전체적인 석면함유량이 저평가되는 경향과 함께 포인트계수법은 분석과정이 조금 복잡하고 분석시간이 많이 소요되었다.

• 한국학교수학회논문집
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• 제19권1호
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• pp.43-61
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• 2016

90년대 중후반 이후 질적 연구법이 우리나라에서 본격적으로 소개되기 시작한 이후, 질적 연구물의 수는 지속적으로 증가하고 있다. 그러한 변화에도 불구하고, 우리의 연구 맥락에서 실제로 적용된 질적 연구물에 대한 분석이나 방법론적 논의는 매우 미흡한 것으로 보인다. 이러한 문제의식에서 본 연구는 출발하였다. 구체적으로 본 연구는, 수학교육에서 질적 연구방법을 어떻게 적용하고 있는지를 분석하여, 향후 질적 연구법을 활용하고자 하는 연구자들에게 연구에서 의도한 목적 달성과 연구 결과의 질적 향상에 도움이 될 수 있는 방법론적 시사점을 제시하고자 한다. 이러한 연구 목적을 성취하기 위하여, 본 연구에서는 한국수학교육학회의 학회지인 '초등수학교육'에서 질적 연구방법을 활용하여 2012년 게재된 논문 5편을 대상으로 샘플링 선정, 자료 수집 및 자료 분석 방법 등을 중심으로 세밀하게 분석하여, 그 결과와 논의점을 질적으로 제시하고 있다.

• Physical Therapy Rehabilitation Science
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• 제10권3호
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• pp.343-350
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• 2021

Objective: The most common type of cancer in women is breast cancer, and pain in the upper extremity and trunk is a discomfort experienced by more than half. Based on the evidence that manual therapy is effective for pain control in postoperative rehabilitation, this study aims to analyze the effects of manual therapy on upper extremity pain and function in patients after breast cancer surgery. Design: A systematic review and meta-analysis. Methods: We searched MEDLINE, Embase, PEDro, and CINAHL databases until August 2021. We included randomized controlled trial evaluating pain and function in patients after breast cancer surgery. Qualitative analysis was performed using Cochrane's risk of bias tool, and quantitative analysis was performed using RevMan 5.4 to analyze post-intervention outcomes. Results: Four randomized controlled trials were selected to evaluate the effects of upper extremity pain and function in 133 patients who underwent manual therapy after breast cancer surgery. In the results of qualitative and quantitative analysis, the experimental group treated with manual therapy showed a significant improvement in pain compared to the control group (-0.62; 95% confidence interval (CI) -0.97 to -0.27). However, there was no significant improvement in upper extremity function (-0.09; 95% CI -0.43 to 0.25). Conclusions: Current evidence shows that manual therapy is effective for pain control in patients who complain of upper extremity pain after breast cancer surgery.

• 대한건축학회논문집:구조계
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• 제34권3호
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• pp.77-86
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• 2018

Recently, Korean construction industry is moving from quantitative growth to qualitative growth. Among the changes in the construction industry, the competency of the project manager who represents the construction project as well as the construction company has been referred to as a factor that effects qualitative growth. This research utilized previous research analysis and expert interview in order to extract essential competency factors of a construction project manager. DEMATEL method was utilized to analyze the quantitative and objective causal relationship between the competency factors. The causal relationship of the competency factors were visualized through Digraph (directed graph) and competency areas of the project manager that requires strengthening were also suggested. Analysis result showed that the important competency categories of a project manager were Internal & External Communication, Project Management Body of Knowledge, and Inspirational Leadership. The analysis results of this research can be utilized in developing competency enhancement method for future project managers and as a basic data in developing an education program.

• 동의신경정신과학회지
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• 제35권2호
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• pp.177-189
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• 2024

Objectives: This study aimed to evaluate the impact of Resource Mindfulness on participants' emotional state, focusing on anxiety and stress reduction and to explore the importance of psychological resources in this process. The effectiveness of Resource Mindfulness was investigated through both quantitative and qualitative analyses, examining its influence on subjective distress, mindfulness, core emotions, and identification of personal resources. Methods: This study involved 27 participants, including Korean medicine students, psychological counselors, clinical psychologists, and Korean medicine specialists, who attended a 2-night, 3-day M&L psychological support education program from July 2 to July 4, 2022. Participants were informed of the study's purpose and procedures. They provided written consent. Quantitative measures included Subjective Units of Disturbance Scale (SUDS), Five Facet Mindfulness Questionnaire (FFMQ), and Core Seven-Emotions Inventory Short Form (CSEI-s). Qualitative analysis was conducted using the "Drawing the Rooms of the Mind" technique. Pre- and post-program assessments were conducted to compare changes in subjective distress, mindfulness, and core emotions. Data were analyzed using paired t-tests and qualitative content analysis methods. Results: Significant reductions in subjective distress and improvements in mindfulness components were observed. Core emotions showed significant decreases in negative emotions. Qualitative analysis revealed increased tranquility, relief, and confidence, with resourceful places often being nature-related. Conclusions: Resource Mindfulness effectively reduced anxiety and stress and enhanced self-awareness and self-efficacy. It is useful for managing various mental health issues. Further research is needed to generalize these findings.

• Toxicological Research
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• 제34권4호
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• pp.303-310
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• 2018

The methods of applied genetic toxicology are changing from qualitative hazard identification to quantitative risk assessment. Recently, quantitative analysis with point of departure (PoD) metrics and benchmark dose (BMD) modeling have been applied to in vitro genotoxicity data. Two software packages are commonly used for BMD analysis. In previous studies, we performed quantitative dose-response analysis by using the PROAST software to quantitatively evaluate the mutagenicity of four piperidine nitroxides with various substituent groups on the 4-position of the piperidine ring and six cigarette whole smoke solutions (WSSs) prepared by bubbling machine-generated whole smoke. In the present study, we reanalyzed the obtained genotoxicity data by using the EPA's BMD software (BMDS) to evaluate the inter-platform quantitative agreement of the estimates of genotoxic potency. We calculated the BMDs for 10%, 50%, and 100% (i.e., a two-fold increase), and 200% increases over the concurrent vehicle controls to achieve better discrimination of the dose-responses, along with their BMDLs (the lower 95% confidence interval of the BMD) and BMDUs (the upper 95% confidence interval of the BMD). The BMD values and rankings estimated in this study by using the EPA's BMDS were reasonably similar to those calculated in our previous studies by using PROAST. These results indicated that both software packages were suitable for dose-response analysis using the mouse lymphoma assay and that the BMD modeling results from these software packages produced comparable rank orders of the mutagenic potency.

• 대한임상검사과학회지
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• 제52권3호
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• pp.202-213
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• 2020

미생물 연구에서 대량의 마이크로바이옴 데이터를 효율적으로 얻는 기술이 발전해왔지만, 마이크로바이옴 빅 데이터를 적절하게 분석하는 도구는 여전히 부족하다. 또한 빈약한 데이터베이스를 사용하여 미생물 군집을 분석하면 잘못된 결과를 초래할 수 있다. 따라서 본 연구는 대량의 미생물 데이터베이스 분석을 위한 적절한 방법을 설계하고자 하였다. 박테리아는 개인의 손끝과 개인 소지품(휴대 전화 및 랩탑 키보드)에서 수집되었다. 박테리아로부터 게놈 DNA를 추출하고 16S rRNA 유전자를 표적으로 하여 차세대 시퀀싱을 실시하였다. 손끝과 개인 소지품 간의 박테리아 매칭 비율의 정확성은 공식과 함께 환경 및 인간관련 데이터베이스를 사용하여 확인하였다. 적절한 분석을 설계하기 위해 다음 세가지 범주를 기준으로: 정성적 분석과 정량적 분석 비교, 성별에 관계없이 모든 참여자뿐만 아니라 동일 성별 참여자 내 비교, 환경(eDB) 및 인간 관련 데이터 베이스(hDB)를 이용하여 샘플간 비교하였다. 결과는 정성적 분석과 동일 성별 참가자 내에서의 비교 및 hDB의 사용이 비교적 정확한 결과를 제공하였다. 우리의 연구는 인간 유래 미생물을 사용하여 대량의 미생물학적 데이터를 포함하는 연구를 수행할 때 정확한 결과를 얻을 수 있는 분석 방법을 제공한다.