• Journal of the Korean Society of Radiology
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• v.84 no.3
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• pp.550-564
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• 2023

MRI is currently the imaging modality of choice to evaluate rectal cancer after neoadjuvant treatment. The purposes of restaging MRI are to assess the resectability of rectal cancer and to decide whether organ preservation strategies can be applied in patients with a complete clinical response. This review article indicates the key MRI features needed to evaluate rectal cancer after neoadjuvant treatment using a systematic approach. Assessment of primary tumor response including MRI findings to predict a complete response is discussed. Additionally, MRI evaluation of the relationship between the primary tumor and adjacent structures, lymph node response, extramural venous invasion, and tumor deposits after neoadjuvant treatment is presented. Knowledge of these imaging features and their clinical relevance may help radiologists provide an accurate and clinically valuable interpretation of restaging rectal MRI.

• Korean Journal of Pharmacognosy
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• v.49 no.3
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• pp.203-218
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• 2018

It has been extensively known in the high temperature regions such as southern China and south east Asia that Korean ginseng(Panax ginseng) intake raises body heat, while American ginseng(Panax quinquefolium) lowers it, based upon oriental medicine. This is likely due to the misunderstanding of the conception that Korean ginseng shows a warm property, resulting in enhanced blood circulation and stimulation of metabolism. It's further supported by the fact that current scientific studies have shown no notable side effects. Moreover, it has been demonstrated in animal experimental test that Korean ginseng shows a complementary effect in a high temperature environment, together with scientific evidence of a preventive effect of ginseng saponin against cold conditions, suggesting it to exhibit an adaptogenic effect normalizing the body under abnormal body conditions. However, there is a shortage of studies published concerning comparative clinical and animal studies of Korean and American ginsengs, and also, on natives of high temperature countries. Therefore, a further placebo-controlled clinical study has to be considered to elucidate scientifically clinical evaluation of Korean and American ginsengs on the body heat. In this article, we summarize the scientific publications reporting the clinical comparative study of Korean and American ginsengs on body heat response.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.40
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• pp.3.1-3.8
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• 2018

Background: In this research article, we evaluate the use of sub-periosteal tunneling (tunnel technique) combined with alloplastic in situ hardening biphasic calcium phosphate (BCP, a compound of β-tricalcium phosphate and hydroxyapatite) bone graft for lateral augmentation of a deficient alveolar ridge. Methods: A total of 9 patients with deficient mandibular alveolar ridges were included in the present pilot study. Ten lateral ridge augmentation were carried out using the sub-periosteal tunneling technique, including a bilateral procedure in one patient. The increase in ridge width was assessed using CBCT evaluation of the ridge preoperatively and at 4 months postoperatively. Histological assessment of the quality of bone formation was also carried out with bone cores obtained at the implant placement re-entry in one patient. Results: The mean bucco-lingual ridge width increased in average from 4.17 ± 0.99 mm to 8.56 ± 1.93 mm after lateral bone augmentation with easy-graft CRYSTAL using the tunneling technique. The gain in ridge width was statistically highly significant (p = 0.0019). Histomorphometric assessment of two bone cores obtained at the time of implant placement from one patient revealed 27.6% new bone and an overall mineralized fraction of 72.3% in the grafted area 4 months after the bone grafting was carried out. Conclusions: Within the limits of this pilot study, it can be concluded that sub-periosteal tunneling technique using in situ hardening biphasic calcium phosphate is a valuable option for lateral ridge augmentation to allow implant placement in deficient alveolar ridges. Further prospective randomized clinical trials will be necessary to assess its performance in comparison to conventional ridge augmentation procedures.

• Journal of Science and Technology Studies
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• v.2 no.2 s.4
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• pp.91-122
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• 2002

Constructivism has had a great influence on science education over the last two decades. The purpose of this article is twofold: First, to describe the characteristics of constructivism and, second, to suggest an ideal forms of science education in Korea as implied in constructivism. A review of the literature in the first area shows that constructivism is the philosophical/ psychological view which believes in the social nature of the construction of scientific knowledge and its learning. And the analyses of a few schools of constructivism suggests decision-making as a goal of science education, loaming as the active construction of meaning through interaction between learner and learning environments, and discussion and cooperation as appropriate teaching strategies. At the same time, the results necessitate teaching ethical aspects of science in the secondary schools, and also imply that performance assessment must be emphasized in evaluation of science education.

• Journal of KIISE:Software and Applications
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• v.31 no.4
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• pp.505-515
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• 2004

In a newspaper, 5W1H information is the most fundamental and important element for writing and understanding articles. Focusing on such a relation between a newspaper article and the 5W1H, we propose a summarization method based on the activation degree of 5W1H. To overcome problems of the lead-based and the title-based methods, both of which are known to be the most effective in newspaper summarization, sufficient 5W1H information is extracted from both a title and a lead sentence. Moreover, for each sentence, its weight is computed by considering various factors, such as activation degree of 5W1H, the number of 5W1H categories, and its length and position. These factors make a great contribution to the selection of more important sentences, and thus to the improvement of readability of the summarized texts. In an experimental evaluation, the proposed method achieved a precision of 74.7% outperforming the lead-based method. In sum, our 5W1H approach was shown to be promising for automatic summarization of newspaper articles.

• Journal of Korea Entertainment Industry Association
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• v.13 no.3
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• pp.131-138
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• 2019

In general, film acting refers to American method or Hollywood method. Hollywood method is a term to denominate collectively actors from Group Theatre of Lee Strasberg which accepted Russian Stanislavski's system as American acting. We can find out the origins of Korean acting in the attitude of actors who imitate Hollywood. Hollywood method, which seem to be more systematic and rational in the previous Sin-pa, has begun to be accepted in the fields of actors, directors, critics, and educators. The perception of Hollywood method in Korea is part of the search for the identity of Korean film acting. This article approaches from the perspective of four fields. First, it is Korean actors' perceptions about Hollywood methods. Second, I examine the attitude of the direction of staff and technical aesthetics regarding Hollywood method. Third, it is evaluation aspect in criticism area. Fourth, it is an aspect of education.

• Journal of The Korean Association For Science Education
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• v.22 no.4
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• pp.820-836
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• 2002

Constructivism has had a great influence on science education over the last two decades. The purpose of this article is twofold: First, to describe the characteristics of constructivism and, second, to suggest an ideal forms of science education in Korea as implied in constructivism. A review of the literatures in the first area shows that constructivism is philosophical/psychological view which believe in the social nature of the construction of scientific knowledge and its learning. And the analyses of a few schools of constructivism suggest decision-making as a goal of science education, learning as the active construction of meaning through interaction between learner and learning environments, and discussion and cooperation as appropriate teaching strategies. At the same time, the results necessitate teaching ethical aspects of science in the secondary schools, and also imply that performance assessment must be emphasized in evaluation of science education.

• The Journal of the Petrological Society of Korea
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• v.25 no.3
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• pp.253-260
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• 2016

A moment magnitude 3.1 earthquake occurred in the Seoul metropolitan region (SMR), Korea, on 9 February 2010. The unexpected shaking attracted much attention and raised concerns about the seismic hazards and risks in the SMR, which was regarded as an area safe from any earthquake hazard. The SMR has a population of 25 million and is one of the largest metropolitan areas in the world. A shakemap for a scenario earthquake with magnitude 6.5 and focal depth 12 km implies that the SMR will be exposed to serious risk because of its large population and the high vulnerability of its buildings. Although the instrumentally recorded earthquakes discussed in this article cannot be classified as major events, they should not be discounted as insignificant. Considering the low seismicity, micro-earthquakes below the magnitude of a conventional seismic network can achieve would be used to estimate background information in the evaluation of earthquake hazards and risks.

• The Journal of Society for e-Business Studies
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• v.17 no.1
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• pp.173-187
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• 2012

As newspapers which have been major news media are being replaced by on-line news media in recent years, many researchers are paying attention to "comments(news users' short remarks on an article)", a newly emerged way of forming public opinion. This study is examining how the similarity between political disposition of on-line news visitors and that of news media impacts upon their evaluation on quality of comments from the viewpoint of 'social identity theory.' This study may have academic significance because it inspected the pattern of media usage and the cognition of comments in relation to political disposition for the first time and showed 'comments reading' and the function of comments to form public opinion(comments journalism).

• Journal of the Korean Society for Library and Information Science
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• v.39 no.4
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• pp.45-69
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• 2005

The purpose of this article lies in investigating the problems and limitations of the current LIS education in Korea with an emphasis on the viewpoints of librarians. Also identified are the librarians suggestions for a better LIS educational system, in particular, for the renovation of the current LIS curriculum to upgrade the competencies of future librarians. To this end, 347 librarians from public, academic, special, and school libraries were e-mail surveyed. And the collected data were analyzed and interpreted to find out the specific problems and suggestions based on the types of libraries as well as the overall problems and suggestions.