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Building E-learning Apps with Multimedia Contents for Learning Language Variations
Boeun Jung,Sora Lim 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.11
In language education, little attention has been paid to the importance of variations of a language. It is focused only on acquiring standard forms. However, knowing standard forms is not sufficient for understanding the target language in real situations. That is why when we learn a target language; we have to pay attention to its linguistic variations. It is believed that e-learning is the most appropriate means of teaching and learning those dialects, because it can offer multiple speaking contexts in the same time and space. Using and incorporating multimedia content is very helpful in enabling language learners to experience more realistic and practical usage of those variations. From this perspective, this paper gives a brief idea of building e-learning applications that are capable of teaching and learning not only standard, but also variations of a language.
Boeun Kim,Kangjae Yi,Sunyoung Jung,Seoyeon Ji,최민철,윤정희 대한수의학회 2014 JOURNAL OF VETERINARY SCIENCE Vol.15 No.3
Diffusion-weighted imaging (DWI) and apparent diffusioncoefficient (ADC) mapping are functional magneticresonance imaging techniques for detecting water diffusion. DWI and the ADC map were performed for intracraniallesions in two dogs. In necrotizing leukoencephalitis,cavitated lesions contained a hypointense center with ahyperintense periphery on DWI, and hyperintense signals onthe ADC maps. In metastatic sarcoma, masses including anecrotic region were hypointense with DWI, andhyperintense on the ADC map with hyperintense perilesionaledema on DWI and ADC map. Since DWI and ADC datareflect the altered water diffusion, they can provide additional information at the molecular level.
Angioleiomyoma in the Orbital Apex: A Case Report
( Boeun Lee ),( Soo Jeong Park ),( Ju Hyung Moon ),( Se Hoon Kim ),( Jong Hee Chang ),( Sun Ho Kim ),( Eui Hyun Kim ) 대한뇌종양학회·대한신경종양학회·대한소아뇌종양학회 2019 Brain Tumor Research and Treatment Vol.7 No.2
A 56-year woman presented eyeball pain and blurred vision. MRI revealed a small well-delineated solid tumor in the apex of right orbit with optic nerve compression. Intraoperatively, the tumor was found very fibrous, hypervascular and adhesive to surrounding structures. The tumor was completely removed with the combination of endoscopic and microscopic technique. Patient experienced transient oculomotor nerve palsy, which completely recovered 3 months after surgery. Herein we report a rare case of angioleiomyoma in the orbital apex.
Boeun Lee,Young Jun Choi,Seon-Ok Kim,Yoon Se Lee,Jung Yong Hong,백정환,이정현 대한영상의학회 2019 Korean Journal of Radiology Vol.20 No.8
Objective: To determine whether radiologic extranodal extension (ENE) appearing on pretreatment CT and MRI could predict the prognosis in patients with human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC). Materials and Methods: The study population was obtained from a historical cohort diagnosed with HPV-related OPSCC. A total of 134 OPSCC patients who had a metastatic lymph node on pretreatment CT or MRI were included, and radiologic ENE was evaluated by two experienced head and neck radiologists. Kaplan-Meier and multivariate Cox regression analyses were performed to evaluate the impact of radiologic ENE on progression-free survival (PFS). The diagnostic performance of CT and MRI for the diagnosis of ENE was also evaluated in patients who underwent neck dissection. Results: Seventy patients (52.2%) showed radiologic ENE-positive findings. Although patients showing radiologic ENE had a worse 3-year PFS (83.7% vs. 95.3%, p = 0.023), the association between radiologic ENE and PFS was not statistically significant on multivariate analysis (p = 0.141; hazard ratio, 2.68; 95% confidence interval, 0.72–9.97). CT or MRI had a sensitivity of 62%, specificity of 77.8%, and accuracy of 71.9% for predicting pathologic ENE. Conclusion: Radiologic ENE on CT or MRI did not predict poor PFS in patients with HPV-related OPSCC, although there was a trend towards worse PFS. Further studies are warranted to determine whether radiologic ENE is a useful imaging biomarker to risk-stratify patients with HPV-related OPSCC.