• 천문학논총
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• 제27권4호
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• pp.201-207
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• 2012

Following the first Public Release of the AKARI Point Source catalogues, we have worked on the production of a new far-infrared All-Sky Diffuse mapping product. In this paper we report first results from the All Sky diffuse maps that will shortly be released to the community, based on analysis of data from the Far Infrared Surveyor ($65{\mu}m-160{\mu}m$) instrument. These data are likely to have a strong impact on studies of extended structures, and the diffuse ISM.

• 천문학논총
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• 제27권4호
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• pp.347-352
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• 2012

Understanding infrared (IR) luminosity is fundamental to understanding the cosmic star formation history and AGN evolution, since their most intense stages are often obscured by dust. Japanese infrared satellite, AKARI, provided unique data sets to probe this both at low and high redshifts. The AKARI performed an all sky survey in 6 IR bands (9, 18, 65, 90, 140, and $160{\mu}m$) with 3-10 times better sensitivity than IRAS, covering the crucial far-IR wavelengths across the peak of the dust emission. Combined with a better spatial resolution, AKARI can measure the total infrared luminosity ($L_{TIR}$) of individual galaxies much more precisely, and thus, the total infrared luminosity density of the local Universe. In the AKARI NEP deep field, we construct restframe $8{\mu}m$, $12{\mu}m$, and total infrared (TIR) luminosity functions (LFs) at 0.15 < z < 2.2 using 4,128 infrared sources. A continuous filter coverage in the mid-IR wavelength (2.4, 3.2, 4.1, 7, 9, 11, 15, 18, and $24{\mu}m$) by the AKARI satellite allows us to estimate restframe $8{\mu}m$ and $12{\mu}m$ luminosities without using a large extrapolation based on a SED fit, which was the largest uncertainty in previous work. By combining these two results, we reveal dust-hidden cosmic star formation history and AGN evolution from z = 0 to z = 2.2, all probed by the AKARI satellite.

• 천문학논총
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• 제27권4호
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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.

• 대한가정학회지
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• 제50권6호
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• pp.119-130
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• 2012

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.

• 치위생과학회지
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• 제19권4호
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• pp.220-227
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• 2019

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.

• 대한지리학회지
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• 제39권1호
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• pp.1-12
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• 2004

본 논문은 국제기구의 다양한 활동과 관련하여 지리학 분야가 공헌 할 수 있는 가능성과 미래 새로운 영역 개발의 필요성을 동해명칭의 국제표준화 과정을 사례로 점검하였다. 지명을 국제적으로 표준화를 담당하는 국제기구로는UN내에 지명표준화회의와 지명전문가회의가 있으며, 동해와 같이 바다명칭만을 다루는 기구로는 국제수로기구로 각 기구는 이와 관련된 결의안을 이미 확보하고 있다. 그러나, 현실에서는 본 결의안을 수행하는데는 양자 혹은 다자 협의가 필수적이라 많은 노력이 요망되고 있다. 그간 정부와 학계의 노력으로 동해표기가 지도제작사에 의해 빠른 속도로 확산되고 있다. 지명 외에 WTO, 해양문제. 환경과 기후, 영토와 국경 문제, FTA등을 포함한 "지리학의 국제관계"를 다루는 새로운 분야를 개척하여 지리학자가 직접 국제간에 결정과정에 참여할 수 있도록 노력하여야 겠다.

• 동의생리병리학회지
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• 제27권5호
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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.

• 한국정보과학회논문지:시스템및이론
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• 제31권7호
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• pp.387-396
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• 2004

본 논문에서는 화상회의 시스템의 서비스 품질(QoS)을 최대화하기 위해 프레임 복원 태스크들에게 프로세서 시간을 효율적으로 분산하는 방안을 제시하고자 한다. 압축된 프레임은 복원에 소요된 프로세서 시간이 증가함에 따라 복원된 영상의 QoS 또한 증가하는 특성을 가진다. 따라서 각 프레임별 복원영상의 품질은 복원을 위해 주어진 서비스 시간의 QoS 함수로 표현될 수 있다. 또한 각 화상회의 스트림은 연속된 프레임간 밀접한 시간 의존성을 가진다. 이러한 특성과 QoS 함수를 기반으로 본 논문에서는 총 QoS를 최대화하면서 모든 프레임이 아닌 일부 프레임들만 스케줄링하는 온-라인 프레임 스케줄링 알고리즘을 제안한다. 실험 결과 시스템 부하가 증가함에 따라 제안 알고리즘은 기존 EDF에 비해 보다 부드럽게 화질이 감소하고, 연속된 프레임들이 끊김 없이 출력되어 보다 자연스런 화자의 동작을 보일 수 있었다.

• 한국문헌정보학회지
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• 제50권4호
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• pp.55-75
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• 2016

본 논문은 임상의사가 선호하는 임상정보원의 특성과 정보검색 시 장애요인을 심층인터뷰를 통해 분석하였다. 환자 진료를 위한 정보검색은 환자치료방법 결정, 최신 경향 파악, 내부 컨퍼런스 발표자료 준비 등으로 구분되었으며, 이러한 검색행위에 영향을 미치는 변인으로는 주제 배경지식, 진료 경험, 직급, 검색 능력, DB 이용교육, 도서관 홈페이지 친숙도 등으로 나타났다. 온라인 임상정보원은 익숙하고 신뢰성이 높고 방대한 정보의 양 때문에 PubMed가 가장 선호되었으며, 속도가 빠르고 쓰기 쉬운 구글도 많이 사용되었다. 정보내용의 정확성과 최신성이 정보원 선정에 있어 가장 중요한 기준으로 적용되었으며, 시간이 많이 부족한 관계로 검색방법의 용이성, 정보에 대한 접근 편이성도 중요하게 여겨지고 있었다. 사용하기 불편한 검색시스템, 생소한 주제나 용어의 검색 어려움, 너무나 방대한 자료, 원문 접근의 어려움, 복잡한 고급검색 기능 등이 장애요인으로 도출되었다. 본 연구결과는 도서관 서비스 개선이나 임상의사의 정보검색 교육과정을 개선하는데 기초자료로 활용될 수 있을 것이다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
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• pp.586-588
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• 2007

마이크로 칩의 저장능력은 매18개월마다 두 배로 늘어나고, 네트워크 속도 역시 매 9개월마다 두 배로 빨라진다고 하는 보고는 대용량의 데이터와 초고속네트워크를 필요로 하는 응용 연구자들에게 있어 네트워크는 더 이상의 장애물이 아니며 동시에 이러한 응용연구자들의 연구가 네트워크속도의 발전을 더욱 가속화 시킨다고 할 수 있다. 지난 2005년, 한국은 대전-시애틀과 대전-홍콩을 10기가 급의 광 네트워킹으로 연결하는 글로벌 과학기술 협업연구망(GLORIAD)이 개통되면서 대용량의 데이터를 다루는 국내 응용연구자들이 네트워크 속도에 제한받지 않고 다양한 국제 협업연구에 참여할 수 있게 되었다. 본 논문에서는 글로리아드 망을 통해 진행되고 있는 국제 협업연구를 소개하고 특히 지난 슈퍼컴퓨팅 컨퍼런스(SC06) 기간 중에 진행된 VMT시연을 비롯하여, 고에너지물리 시연, 천문데이터전송 및 KISTI와 광주과학 기술원이 공동으로 개발한 저비용 고화질 비디오 재생시연 등을 소개한다.