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컴퓨터 교육에서 정보윤리 교육을 위한 교육과정 모델 설계
임진숙,구정모,김성식 한국컴퓨터교육학회 2004 컴퓨터교육학회 논문지 Vol.7 No.2
초등학교 컴퓨터 교육의 필수화로 그동안 다른 과목에 흡수되었던 초등학교 컴퓨터가 독립 과목형태로 교육되고 있으나, 이는 ICT소양교육의 내용 체계를 준거로 하고 있어서 중등학교 컴퓨터 교육과정과의 비연계성 면에서 문제가 제기되고 있으며, 컴퓨터 교육의 한 부분인 정보윤리교육도 같은 문제를 가지고 있다고 할 수 있다. 정보윤리교육의 이러한 문제를 해결하기 위해서는 초·중등학교 전체 과정을 통하여 교육되어야 할 정보윤리교육 목표를 설정하고 내용체계를 재조직할 필요가 있다. 이에 따라 본 연구에서는 현재 시행되고 있는 ICT소양교육과 컴퓨터 교육과정에 포함된 정보윤리교육 내용 체계와 미국의 컴퓨터 교육과정에 포함된 정보윤리 관련 내용 체계를 분석하고, 이러한 분석에 기초하여 컴퓨터 교육에서 정보윤리교육을 위한 교육과정 모델을 설계하였다. After the computer education become essential in elementary school, computer subject which was absorbed by the other subjects is educating in independent way. However, since the contents of computer education in elementary school is based on the ICT literacy education, sequential disconnection problem appears between elementary school and secondary school computer education curriculum. Therefore, information ethics education that is one part of computer education also has same problems. To solve these problems of information ethics education, it is necessary to set the goal of information ethics education that should be educated through the whole courses of elementary and secondary school and to reorganize the contents. In this study, we analyzed the contents of information ethics education included in ICT literacy education and computer curriculum, and analyzed the contents of information ethics education included in U.S. computer curriculum. Based on these analysis, we designed a curriculum model for information ethics education in computer education.
Volumetric Measurements of Lung Nodules with Multi-Detector Row CT: Effect of Changes in Lung Volume
Jin Mo Goo,김광기,David S. Gierada,Mario Castro,Kyongtae T. Bae 대한영상의학회 2006 Korean Journal of Radiology Vol.7 No.4
Objective: To evaluate how changes in lung volume affect volumetric measurements of lung nodules using a multi-detector row CT. Materials and Methods: Ten subjects with asthma or chronic bronchitis who had one or more lung nodules were included. For each subject, two sets of CT images were obtained at inspiration and at expiration. A total of 33 nodules (23 nodules 3 mm) were identified and their volume measured using a semiautomatic volume measurement program. Differences between nodule volume on inspiration and expiration were compared using the paired t-test. Percent differences, between on inspiration and expiration, in nodule attenuation, total lung volume, whole lung attenuation, and regional lung attenuation, were computed and compared with percent difference in nodule volume determined by linear correlation analysis. Results: The difference in nodule volume observed between inspiration and expiration was significant (p < 0.01); the mean percent difference in lung nodule volume was 23.1% for all nodules and for nodules 3 mm. The volume of nodules was measured to be larger on expiration CT than on inspiration CT (28 out of 33 nodules; 19 out of 23 nodules 3 mm). A statistically significant correlation was found between the percent difference of lung nodule volume and lung volume or regional lung attenuation (p < 0.05) for nodules 3 mm. Conclusion: Volumetric measurements of pulmonary nodules were significantly affected by changes in lung volume. The variability in this respiration-related measurement should be considered to determine whether growth has occurred in a lung nodule.
Is the Computer-Aided Detection Scheme for Lung Nodule Also Useful in Detecting Lung Cancer?
Goo, Jin Mo,Kim, Hyae Young,Lee, Jeong Won,Lee, Hyun Ju,Lee, Chang Hyun,Lee, Kyung Won,Kim, Tae Jung,Lim, Kun Young,Park, Seong Ho,Bae, Kyongtae T. Lippincott Williams Wilkins, Inc. 2008 Journal of computer assisted tomography Vol.32 No.4
OBJECTIVE:: To evaluate the impact of a computer-aided diagnosis (CAD) system on the performance of observers for the detection of both lung nodules and lung cancers. MATERIALS AND METHODS:: One hundred fifty computed tomographic scans were evaluated. Database included 23 lung cancers (long diameter <20 mm), nodules stable for at least 2 years, and normal cases. Five chest radiologists and 5 radiology residents each independently recorded the locus of each nodule candidate and assigned a confidence score for the likelihood of nodule and malignancy without CAD; then, the interpretation was repeated with the use of CAD. A consensus panel of 2 chest radiologists served as a reference standard for the nodules. Histological confirmation was a reference standard for the cancers. The performances of the observers for the detection of nodules and cancer with and without CAD were compared using jackknife free-response receiver operating characteristic analysis. RESULTS:: The performance of detecting lung nodules was increased significantly with CAD for all radiologists and subgroups (P < 0.01). Although the overall performance of detecting lung cancers was not affected significantly with the use of CAD (P > 0.05), 4 lung cancers missed by 3 residents on their initial observation were additionally detected with CAD. Eighteen of 23 lung cancers were detected by CAD itself. CONCLUSIONS:: The overall radiologists' performance of detecting lung nodules was improved significantly with the use of CAD, whereas no statistical significance was observed for the detection of lung cancers. The use of CAD, however, contributed to the detection of additional lung cancers for less experienced readers.
Imaging Biomarkers in Lung Cancer
( Jin Mo Goo ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-
Lung cancer screening with low-dose CT (LDCT) has shown to reduce lung cancer mortality in several randomized clinical trials. Most nodule management systems are based on the nodule type (solid, part-solid, nonsolid) and nodule size. Traditionally the nodule size was measured manually and expressed as one-dimensional diameter or two-dimensional average diameter. Recently, many studies have shown the value of nodule volumetry obtained with software in reducing interobserver variability and predicting nodule malignancy. Calculating the volume doubling time can be used in this process. In addition to the assessment of lung nodule, LDCT provides valuable information on smoking-related diseases such as emphysema and coronary artery disease. Management based on this information can contribute to reducing all-cause mortality. With the advance of machine learning techniques, quantitative analysis of LDCT in lung cancer screening will be more effectively explored. Radiomics is defined as high-throughput extraction, analysis, and interpretation of quantitative features from medical images. Radiomics have been applied various aspect of lung cancer imaging: differentiation benign from malignant nodules, histologic correlation in terms of tumor grade, prediction of mutation status, prognosis, clinical outcomes, and treatment response. Many studies have suggested that more heterogeneous tumors are more aggressive and associated with poorer prognosis/survival and tumors that become more homogeneous during treatment seem to be responding to therapy. Although radiomics showed many potentials, there are still challenges and limitation. Because of the nonstandardized protocols and relative lack of multicenter studies, the results are still hard to be generalized. Standardized data collection, establishment of evaluation criteria, and reporting guidelines are required.
A Study on Unsteady Temperature Distribution Analysis of Moss Type LNG Carrier by Insulation System
Jin-Goo Kim(김진구),Yong-Mo Kim(김용모),Chun-Sik Kim(김춘식) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.4
본 연구는 Moss형 LNG선박의 방열구조에서 LNG탱크에 침입하는 열량과 선체의 온도분포를 예측하고, 운항 중 LNG탱크를 Cooling down(예냉)하는 경우 발생하는 비정상상태에서 LNG탱크에 발생하는 국부적인 열응력을 검토할 수 있는 비정상 온도분포해석과 LNG증발량을 검토하였다. 특히 운항 중인 선박을 대상으로 일반적인 수치계산시에 필요한 각종 입력절차를 간소화 하고 경계조건 선정시에 비 전문가도 쉽게 이용할 수 있는 전산프로그램을 개발하였다. Moss형 LNG탱크의 예냉작업에 필요한 최적의 냉매량과 예냉조건을 비정상상태에서 해석한 것은 설계자 및 선박 운항자에게 유용하게 이용될 것이다.