• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.283-295
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• 2022

This study attempts to explore factors that influence the perception of importance of information security. Three possible exogenous variables including perceived certainty of punishment, perceived response cost, and acquiescense are suggested that are based on the protectiom motivation theory. As a result, we found followings. First, The perceived punishment certainty has a significant effect on the perceived importance of information security. Also, it influences a negative effect on acquiescence. Second, the response cost has a negative effect on the perceived importance of information security. In addition, the response cost positively effects on acquiescence. Finally, acquiescence negatively influences on the perceived importance of information security. The results show that, in order to increase the perceived importance of information security among employees, it is necessary to make them aware that a security violation can result in certain punishment. At the same time, organizations should also attempt to remove major obstacles accompanying security behaviors of employees. Finally, organizations encourage open communication relating to information security among employees.

• Korea Trade Review
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• v.43 no.6
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• pp.25-50
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• 2018

It is an undeniable fact that the counter-guarantees are always exposed to wrongful or fraudulent demands for payment due to its institutional hallmarks and simplicity. Generally counter-guarantees are payable by presenting a written statement indicating that the local guarantor was in receipt of the beneficiary's statement that the principal was in breach of the underlying contract without any proof of any default. No proof of actual payment of guarantee is required. These matters may lead to numerous disputes or conflicts between the parties concerned. These problems raise may legal issues such as a guarantor(or a counter-guarantor)'s dishonor, the wrongful or fraudulent demands for payment, and the fraudulent conspiracy or the acquiescence of the local guarantor in the course of the procedural demand for payment. On the other hand, the guarantor's dishonor or an injunction are sometimes misused as dispute resolution method between parties involved. Therefore, this research analyzed the guarantor's wrongful dishonor and related issues such as an injunction, fraud exception, and others under the counter-guarantee regime focusing on the relevant cases. This paper also suggested practical implications and countermeasures from a business point of view.

• Journal of Sasang Constitutional Medicine
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• v.13 no.3
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• pp.31-39
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• 2001

Bandwidth and Pitch Range are very important in the area of distinguish of phone which is one of many areas of phonetics and distinguish the individual way of phone. So if each constitution has a trait in its phone, they are important to judge the constitutions. In this report we try to understand the relativity between constitutions and Formant Bandwidth, Pitch Range and the number of syllables in a minute which are important to distinguish the phone. And we try to make judging the constitutions objective. 1. We analyzed Formant Bandwidth and there are some differences between constitutions but it doesn't have any importance in the statistics. 2. We analyzed Pitch Range and there are some differences between constitutions but it doesn't have any importance in the statistics. 3. We analyzed the number of syllables in a minute and there are some differences between constitutions but it doesn't have any importance in the statistics. As mentioned above there are differences between constitutions in Formant Bandwidth, Pitch Range and the numbers of syllables in a minute, but they don't have any importance in the statistics. However if we increase the number of samples and remove noise, there will be great possibility to find some important meanings.

• Journal of Sasang Constitutional Medicine
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• v.13 no.3
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• pp.145-150
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• 2001

Aconitine has much Heat and Toxicity in its property, so many consideration is needed during its use. And there are many contraindications of its use. In the book of Dongyisusebowon, it has to be used when Soeumin has extreme Cold accompanied by Heat of deficiency type. In this case report, a 84 year-old male patient who had taken drugs containing Aconitine had severe Yin-Deficiency-Midday-Fever(陰虛午熱). And he had been treated with Sukjiwhanggosamtang(熟地黃苦參湯) and Dokwhaljiwhangtang(獨活地黃湯). Four conclusions can be made through this case. 1. Soyangin(少陽人) patients may have many side effects or adverse effects when they take drugs containing Aconitine even at a little volume. 2. Soyangin may have chest discomfort when they are constipated. This patient also complained chest discomfort after stroke and toxicosis of Aconitine. 3. Between Sukjiwhanggosamtang(熟地黃苦參湯) and Dokwhaljiwhangtang(獨活地黃湯), Sukjiwhanghosamtang is more effective for this patient who has been skin psoriasis and lower diabetes(下消) for a long time. 4. Although Sukjiwhanghosamtang does not include any antidote drug of Aconitine, it may be used only when defferenciation of symdrome is proper on Sasang Constituional Medicine.

• The Korean Journal of Food And Nutrition
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• v.36 no.6
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• pp.543-550
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• 2023

Mulberry fruit is a superior source of polyphenols, especially anthocyanin, and has a long history of use as an edible fruit and traditional medicine. The anthocyanin composition of mulberry fruit from 15 Korean cultivars was analyzed by ultra-performance liquid chromatography diode array detector with quadrupole time of flight/mass spectrometry (UPLC-DAD-QToF/MS) based on a cyanin internal standard. The four glycosides were identified by comparison with authentic standards and published reports. The major anthocyanin was cyanidin 3-O-glucoside (71.7%), followed by cyanidin 3-O-rutinoside (26.6%). The minor components (total of 1.7%) were pelargonidin 3-O-glucoside and pelargonidin 3-O-rutinoside. The total anthocyanin content (mg/100 g, dry weight) of mulberry fruit varied by cultivar and ranged from 471.5±4.0 (Su Hong) to 4,700.2±54.0 (Gwa Sang2). Among the 15 cultivars examined, Gwa Sang2 showed the highest level of cyanidin 3-O-glucoside (3,133.4±32.6), which was 9-fold higher than that of Su Hong (351.5±3.4). In conclusion, anthocyanin profiles, including pelargonidin 3-O-glucoside and pelargonidin 3-O-rutinoside, were reported for the first time from 15 Korean mulberry fruit cultivars. The results will contribute valuable information on pharmaceutical properties, breeding superior mulberry cultivars, and food industries.

• The Korean Journal of Food And Nutrition
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• v.36 no.6
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• pp.506-514
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• 2023

Reported positive ion fragmentation of phenolic acid derivatives in rice (Oryza sativa L.) were summarized based on the literature. A total of eight phenolic acids (4 derivatives of ferulic acid, 3 derivatives of sinapic acid and p-coumaric acid) were isolated and identified from rice (raw and steamed) using UPLC-DAD-QToF/MS. Results revealed that 6-O-feruloylsurose was the major component with 3'-O-sinapoylsucorse being tentatively identified in Oryza sativa L. for the first time as a new hydroxycinnamoyl derivative in rice grains. In our study, raw brown rice had the highest phenolic acid contents with Samkwang showing higher phenolic acid content than Saeilmi and Sindongjin (12.41 vs. 7.89 and 3.10 mg/100 g dry weight, respectively). Of all varieties, brown rice had higher phenolic acid contents than white rice. These contents decreased considerably when rice was steamed whereas, p-coumaric acid and ferulic acid contents were increased. Additionally, contents of rice (raw and steamed) can be used as a fundamental report for new rice varieties.

• Journal of The Korean Association For Science Education
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• v.26 no.7
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• pp.826-834
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• 2006

The purpose of this study is to examine the pre-service teachers' concept of measurement uncertainty. The subject of this study were 27 pre-service middle-school teachers in Seoul. They carried out open-ended inquiry tasks and surveyed two kinds of open questionnaires, and interviewed several persons. We analysed their behavior and responses. Through the analysis, we summarize pre-service teachers' concept about measurement uncertainty with representation data, precision and accuracy, error analysis, propagation of uncertainty. The results show that the teachers' concept is different from scientists' concept. They make a mistake in using term of precision and accuracy and pay no attention to measure precisely. Also they only point out sources of error but don't consider how the error affects the results of experiment. The results of study will give! 1 some implications for the curriculum and teaching material developers in order that pre-service teacher and student gain scientific concept.

• Journal of The Korean Association For Science Education
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• v.26 no.3
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• pp.406-414
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• 2006

This study investigated 7th grade students' context dependency on explanations about propagating path of light in three different contextual problems: observation of an object, observation of an object's image in a mirror, and observation of one's own face reflection in a mirror. Researchers examined student response in each context through interviews. The students were classified into four groups according to their explanations for the three different contexts. Each group was redivided into two or three subgroups in accordance with their conceptual features. After that, researchers investigated the characteristics of each subgroup. Main findings of the study indicated that (1) group 1 students' conceptions differed in each context; (2) group 2 students showed scientific conceptions in C1 context but in C2 context they showed visual ray conceptions or image misconceptions; (3) group 3 students did not show scientific conceptions in C3 context by strong misconceptions about one's own face reflection in the mirror. Also, this paper discussed the educational implications of the results.

• Journal of the Korean Society for information Management
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• v.41 no.2
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• pp.71-96
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• 2024

This study focused on the fact that limitations of implementing school-centric models and standards of information literacy construction. This study was conducted with the purpose of developing and validating an instructional model to effectively design and practice online information literacy instruction for upper elementary school students based on a public library. Through a review of prior literature and analysis of current status and cases, a primary model was developed including the definition and area of information literacy, learning stages and activities, conceptual and procedural model, and teaching and learning plan. In addition, the first and second expert surveys were conducted to evaluate the internal validity of the model. The final model was derived by synthesizing and converging the collected opinions. As a result of the study, the final model consisted of 7 areas: 'Information literacy concept', 'Instruction component area', 'Conceptual model', 'Procedure model', 'Design principles and detailed guidelines', and 'Learning Steps and Activities' and 'Teaching and Learning Plan'.

• Weed & Turfgrass Science
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• v.7 no.3
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• pp.275-282
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• 2018

Miscanthus species are known as a genus of eco-friendly and low-maintenance cost ornamental grasses. Plug and cutting methods were tested for multi-propagation of most promising ornamental Miscanthus species in greenhouse and field plot. The plug formation period with three different cell sizes with four cultivars (M. sinensis 'Andersson', 'Strictus', 'Gracillimus', 'Variegatus') were evaluated the seedling development stages with two irrigation types of the over-head and the bottom watering in greenhouse and field plot afterward during 2015-2016 season. In seedling plug test, the size of tray cell affected the plug formation. Bottom irrigation resulted positively on plant height, weight, root and tiller development compared with the over-head irrigation. Plug cell size affected the plant growth in the field after transplanting. All of the 3 Miscanthus species showed higher rates of successful propagation at the lower nodes before inflorescence formation (vegetative growth stage). To analyze the survival factors of M. xgiganteus cutting, the cutting time, node part, and culm diameter were tested as independent variables with the binary logistic model. The survival probability was influenced by node part and culm diameter significantly. The third and fifth node parts showed 0.12 (8X higher failure probability) and 0.02 (50X higher failure probability) times less survival probability. It means the survival probability will be increased by using older and lower part of cuttings during a vegetative growth stage before inflorescences of M. xgiganteus.