Kim, Ji Hoon;Im, M.;Kim, D.;Woo, J.H.;Park, D.;Imanishi, M.;AMUSES Team, AMUSES Team;LQSONG Team, LQSONG Team
Publications of The Korean Astronomical Society
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v.27
no.4
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pp.281-284
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2012
We utilize AKARI's slitless spectroscopic capability to detect the $3.3{\mu}m$ polycyclic aromatic hydrocarbons (PAHs) emission and measure star formation (SF) activity for various AKARI programs. First, we obtain $2{\sim}5{\mu}m$ spectra of 20 flux-limited galaxies with mixed SED classes in order to calibrate the $3.3{\mu}m$ PAH luminosity ($L_{PAH3.3}$) as a star formation rate (SFR) indicator. We find that $L_{PAH3.3}$ correlates with $L_{IR}$ as well as with the $6.2{\mu}m$ PAH luminosity ($L_{PAH6.2}$). The correlations does not depend on SED classes. We find that ULIRGs deviate from the correlation between PAH luminosities and $L_{IR}$, while they do not for the correlation between PAH luminosities. We suggest possible effects to cause this deviation. On the other hand, how AGN activity is linked to SB activity is one of the most intriguing questions. While it is suggested that AGN luminosity of quasars correlates with starburst (SB) luminosity, it is still unclear how AGN activity is connected to SF activity based on host galaxy properties. We are measuring SFRs for the LQSONG sample consisting of reverberation mapped AGNs and PG-QSOs. This is an extension of the ASCSG program by which we investigated the connection between SB and AGN activities for Seyferts type 1s at z ~ 0.36. While we found no strong correlation between $L_{PAH3.3}$ and AGN luminosity for these Seyferts 1s, $L_{PAH3.3}$ measured from the central part of galaxies correlates with AGN luminosity, implying that SB and AGN activities are directly connected in the nuclear region.
This study attempted to investigate school participation experiences and the need for a school-participation leave for employed parents. A school participation leave is a paid or unpaid leave that guarantees workers to take time-off for school participation regarding children's educational purposes. We reviewed cases of school participation in other countries. There are similar types of educational leave in Russia, Greece, Italia, Sweden, Swaziland, and South Africa. We collected survey data from 1,194 employed parents (794 fathers and 400 mothers) whose children attend kindergarten, elementary, middle, or high-school. This study compares school participation experiences and needs by parent gender. The results showed that 62 % of the fathers and 80 % of the mothers participated in any type of school meetings and events at least once in the previous year. Fathers attended school events such as art festivals and mothers attended PTA meetings, school events, and parent-teacher conferences. The most frequently mentioned reason for non-participation among parents was related to work. A total of 87.7% of the parents agreed that a school-participation leave should be introduced. The results of the logistic regression showed that mothers compared to fathers, college graduates compared to post-secondary graduates, those whose children attended preschool or elementary school compared to high school, and those who had longer working hours were more likely to agree on the introduction of school participation leave. In conclusion, a policy intervention such as school-participation leave should be considered to provide employed parents time to be involved in their children's education and participate in school activities.
Background: This descriptive study aimed to examine the relationship between the 4C core competencies and work ability among dental hygienists. Methods: From November 2018 to January 2019, data were collected-from 190 dental hygienists workong in dental clinics in Busan, Ulsan, and Gyeongsangnam province using structured questionnaires. For the general characteristics of the dental hygienists, frequency and percentage were calculated, and the level of the 4C core competencies and work ability of dental hygienists was calculated using means and standard deviations. A multiple regression analysis was conducted to analyze the effects of the 4C core competencies on work ability. Results: The mean scores for the 4C core competency levels of the dental hygienists were as follows: communication ability 3.34, critical thinking ability 3.41, creative problem-solving 3.40, and collaborative self-efficacy 3.27. Meanwhile the mean score for work ability level was 3.65. The predictive factors influencing work ability were communication ability and cooperative self-efficacy (p<0.001), and the sub-factors of critical thinking ability that affect work ability were sound conferences (p<0.01), intellectual fairness (p<0.05), intellectual enthusiasm (p<0.05), and self-confidence (p<0.001). Finally, the sub-factors of creative problem-solving ability that affect work ability were planning and execution (p<0.01) and performance evaluation (p<0.05). Conclusion: The current study showed that education programs covering the core competencies of dental hygienists, rather than the existing theoretical education program, should be developed and implemented to enhance 4C core competencies that affect work ability.
This paper deals with a possible contribution to international relations and affairs by the discipline of geography and raises the necessity of a new field in geography that would study relations between nations. The proposed change of the name 'East Sea' is used as a case study in promoting international standardization. Two major international organizations oversee the international standardization of geographical names. One is the UN Conferences of the Standardization of the Geographical Names which work in association with the UN Group of Experts on Geographical Names, and the other is the International Hydrographic Organization. These two organizations have in the past passed all the relevant resolutions pertaining to geographical names. From recent developments on the Korean Peninsula, however, it has become evident that international disputes on place names sometimes require a long process of consultation with the relevant parties. Efforts being made to restore the historically appropriate name of 'East Sea' as opposed to the 'Sea of Japan' have only now begun to diffuse in many areas. It would be appropriate if geographers could develop a new area of 'Geography of International Relations' that deals with WTO, oceans, environment and climatic issues, FAT, as well as territories and boundaries. Furthermore, it would improve the quality of discourse if geographers participated more in the decision-making processes in international affairs.
Journal of Physiology & Pathology in Korean Medicine
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v.27
no.5
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pp.553-562
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2013
This study was performed to develop cold-heat and deficiency-excess pattern identification for dementia, as well as for standard Korean medicine diagnosis and treatment. Five experts comprised of 4 neuropsychiatrists of Korean medicine and 1 statistician to develop cold-heat and deficiency-excess pattern identification for dementia. We searched studies about pattern identification and selected 507 articles using Oasis search terms provided by the KIOM. As a result, 10 pattern identification research study were recruited. Moreover, we analyzed neuropsychological assessments for dementia that evaluate Behavioral and Psychological Symptoms of Dementia (BPSD) and cognitive function using experts conferences and we selected neuropsychological instruments using pattern identification. Six cold patterns, six heat patterns, ten deficiency patterns, and four excess patterns were identified according to the cold-heat and deficiency-excess pattern identification of dementia. We selected the Caregiver-Administered Neuropsychiatric Inventory and the Korean Mini-Mental State Examination as neuropsychological assessments of dementia, which examine behavioral symptoms and cognitive function, suspectively. We formed positive and negative correlation between Korean medicine pattern identification and neuropsychological assessments for dementia. We developed and suggested a forecast module of pattern identification for dementia. But, it is necessary to perform additional clinical trials to verify its validity and accuracy.
In this paper, we propose an algorithm that distributes processor time to the tasks decoding encoded frames with a goal maximizing total QoS (quality of services) of video conference system. An encoded frame has such a characteristic that the QoS of recovered frame image also increases as the processor time given for decoding the frame gets to increase. Thus, the quality of decoded image for each frame can be represented as a QoS function of the amount of service time given to decode. In addition, every stream of video conference has close time-dependency between continuous frames belonging to the same stream. Based on the time-dependency and QoS functions, we propose an on-line frame scheduling algorithm which does not schedule all frames in the system but just a few frames while maximizing total QoS of video streams in the conference. The simulation results show that, as the system load gets to increase, the proposed algorithm compared to the existing EDF algorithm can reduce the quality of decoded frame images more smoothly and show the movements of conference attendees more naturally without short cutting.
Journal of the Korean Society for Library and Information Science
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v.50
no.4
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pp.55-75
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2016
We analyzed the characteristics of the physicians preferred information sources and barriers through in-depth interviews. Information searches for patient treatment were subdivided into deciding patient treatment methods, understanding the latest treatment trends, and preparing presentation materials for conferences. The variables that affected the search behaviors were identified as being background knowledge on the topic, clinical experience, job title, search skills, user training, and familiarity with the library homepage. PubMed was the most preferred choice because of users' familiarity, reliability, and the vastness of information; Google was also used frequently for easy access and fast search result. The accuracy and the recentness of information were the most significant criteria. Easy interface and convenient access were also considered important due to physicians' time constraints. Searching obstacles were divided into difficulty of searching system, unfamiliar term, too vast resources, difficulty to get fulltext articles and complex advanced search features. The results of this study can be utilized as a basis for improving information service of library and curriculum development for physicians.
Proceedings of the Korea Contents Association Conference
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2007.11a
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pp.586-588
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2007
The Moore's law states that the number of transistors on a chip doubles about every 18 months. And it was reported that the network speed has been doubled about every 9 months. This indicates that computing power and network is no longer the obstacles for the high performance applications requiring terabits networks. We believe that the application motivates the network and vice versa. This presentation will introduce the GLORIAD which is the first ring network connecting six countries around the world and provides scientists with advanced networking tools that improve a communications and data exchange. The GLORIAD trans-Pacific link started its service on August 1, 2005. Since then, there has been remarkable demonstrations were performed through major conferences like Supercomputing Conference. This paper will introduce the global collaborative works on demonstrations of VMT, high energy physics, SDSS and HD video transmission during SC'06 in Tampa, FL.
Stosic, Nikola;Smith, Ian K.;Kovacevic, Ahmed;Mujic, Elvedin
International Journal of Fluid Machinery and Systems
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v.4
no.2
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pp.271-288
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2011
The mathematical modelling of screw compressor processes and its implementation in their design began about 30 years ago with the publication of several pioneering papers on this topic, mainly at Purdue Compressor Conferences. This led to the gradual introduction of computer aided design, which, in turn, resulted in huge improvements in these machines, especially in oil-flooded air compressors, where the market is very competitive. A review of progress in such methods is presented in this paper together with their application in successful compressor designs. As a result of their introduction, even small details are now considered significant in efforts to improve performance and reduce costs. Despite this, there are still possibilities to introduce new methods and procedures for improved rotor profiles, design optimisation for each specified duty and specialized compressor design, all of which can lead to a better product and new areas of application. A review of methods and procedures which lead to modern screw compressor practice is presented in this paper. This paper is intended to give a cross section through activities being done in mathematical modelling of screw compressor process through last five decades. It is expected to serve as a basis for further contributions in the area and as a challenge to the forthcoming generations of scientists and engineers to concentrate their efforts in finding future and more extended approaches and submit their contributions.
Korean dentist's new mission was extended in dental practice field since the National Liberation Day of Korea. Modern dentistry development were due to the introduction of american dentistry, the development of Military dentistry, the unified academic activities koreans dental Association and improvement of korean dentist system. Modern dentistry development factors were as follows, First, Seoul National University's professors have been sent for studying abroad since May 1954. Thanks to this advanced system, each dental department established branch academy. Researchers and academic activities were increased in Seoul National University, Second, from January 1954, the military started training program to the korean dentists in the United States, and also the korean dentists were sent to the US Army hospital in korea for practical training courses (On the Job Training) so they could get chances to learn the advanced dentistry. During the korean war, the oral surgery dentists enlarged treatments to the maxillofacial field. Third, korean Dental academy meeting, special lectures and tables clinic from 1947 were contributing to the development of modern dentistry in the transmission of knowledge and skills. Since 1955 "Dentistry(齒學)" with a focus on the translation of foreign literature also developed modern dentistry. Since 1958 the International dental conference could broaden dental knowledge, it also provided opportunities to communicate with the world dentistry. On Oct 11, 1962, revised the Articles of association in Korean Dental academy and korean dental association unified meeting and enhanced the conferences. Improvement of korean dentist system in 1964 unified the dentists as new dentist education. Articles, case reports, review articles and academic meetings of korean dental association from 1946 to 1969 analyzed to demonstrate the development of korean modern dentistry, The titles and lectures were classified according to department and they were organized by topic.
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