• 제목/요약/키워드: Documented Studies

검색결과 348건 처리시간 0.029초

Interaction analysis of computer-mediated group decision making a methodology

  • 김재전
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1991년도 춘계공동학술대회 발표논문 및 초록집; 전북대학교, 전주; 26-27 Apr. 1991
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    • pp.487-495
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    • 1991
  • There has been remarkable growth in GDSS research throughout the past decade. The research findings as well as the developments in technology in this area are well - documented in several recent studies (Dennis, George, Jessup, Nunamaker, & Vogel, 1988; Kraemer & King, 1988; Pinsonneault & Kraemer, 1989).

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Effects of Microgravity and Hypergravity on Aging end Longevity of Insects

  • Kim, Hak-Ryul
    • Animal cells and systems
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    • 제4권3호
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    • pp.231-237
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    • 2000
  • The effects of microgravity and hypergravity on aging are still poorly documented, particularly in mammals. However, there is a growing interest for the use of the fruit fly, Drosophila melanogaster, and this species may be now considered as a model organism in gravitational biology studies dealing with aging.

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공동주택 관리업무의 체계적인 분류에 관한 연구 (A Study on the Classification of Management of Multi-Family Housing)

  • 권명희;김선중
    • 한국주거학회논문집
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    • 제24권1호
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    • pp.11-20
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    • 2013
  • The purpose of the study was to develop a classification of management for the qualitative improvement of the management of multi-family housing. The date were analyzed using the Excel program in terms of frequency and, criticality analysis in order to draw items stage by stage. The process of research was as follows: The first process drew classification of types using the content analysis of the documented studies. The second process examined subcategories according to classification of types via interviews of supervisors. Further, the criticality analysis between the two items was examined. Additionally, when this study surveys and analyzes the satisfactions and importance of management on the basis of the classification, it can have an effect on management by reflecting the result. In conclusion, the classification of the management of multi-family housing will make up the improvement scheme of supplement education, certification related management and management regulations on the characteristics of multi-family housing by types of houses in the future.

Mutational analsysis of phage SP6 transcription initiation and a new transcription vector

  • Kang, Changwong;Nam, Sang-Chul;Lee, In-Woo
    • 미생물과산업
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    • 제14권1호
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    • pp.7-11
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    • 1988
  • Efficient in vitro RNA synthesis can be easily accomplished from cloned DNA using bactrio-phage SP6, T7 or T3 RNA polymerase. Despite its popularity as in vitro transcription system, molecular mechanisms of bacteriophage transcription has not been studied, although physical and catalytic properties of several phage RNA polymerases have well been documented (1). Only recently the T7 promoter has been physically mapped by footprinting of the T7 RNA polymerase (2,3). These simple phage systems, however, could be useful for detailed molecular studies of transcription.

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MOLECULAR TARGETS IN SIGNALING PATHWAYS MEDIATING ANTI-TUMOR EFFECTS OF NON-STEROIDAL ANTI-INFLAMMATORY DRUGS (NSAIDs)

  • Hwang, Daniel
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Signal transduction in Toxicology
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    • pp.14-21
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    • 2001
  • Many epidemiological studies have revealed that the use of aspirin or other non-steroidal anti-inflammatory drugs (NSAIDs) can reduce the risk of colon cancer. Since the well-documented pharmacological action of aspirin and other NSAIDs is the inhibition of cyclooxygenase [COX, the rate-limiting enzyme in prostaglandin (PG) biosynthesis], it has been inferred that the beneficial effect of NSAIDs may be mediated through the inhibition of PG biosynthesis.(omitted)

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Vascular plants of Poaceae (II) new to Korea: Holcus mollis L. and Aira elegantissima Schur

  • Cho, Yanghoon;Kim, Jonghwan;Lee, Byoungyoon
    • Journal of Species Research
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    • 제6권2호
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    • pp.171-176
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    • 2017
  • Recent herbarium reexamination and field studies yielded two monocotyledonous plant taxa of the family Poaceae that could be documented in the national inventory list of species of Korea. These species, collected from Jeollabuk-do and Gyeongsangnam-do, were introduced and naturalized in Korea. Two species were identified as Holcus mollis L. and Aira elegantissima Schur. We provided the descriptions and descriptive photos of these species. Keys to the newly recorded species and related taxa were also provided.

잡종견의 심장 이식후 발생한 부정맥의 관찰 (Sinus Node Dysfunction after Orthotopic Dog Heart Transplantation)

  • 박국양
    • Journal of Chest Surgery
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    • 제27권5호
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    • pp.339-344
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    • 1994
  • Sinus node dysfunction is common after orthotopic heart transplantation.Electrophysiologic studies have documented a high incidence [46% to 50%] of impaired sinus node automaticity and sinoatrial conduction in the early posttransplantation period. Sinus node dysfunction persists in over 20 % of patients and leads to prolonged bradyarrythmias, including sinus or nodal bradycardia and sinus arrest.The purpose of this paper was to observe sinus node dysfunction after orthotopic heart transplantation. Ten cardiac recipient dogs were monitored continuously after orthotopic transplantations between unrelated adult mongrel dogs. Crystalloid cardioplegic solution [Choongwoi Cardioplegia

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Correlation between temperature and the timing of arrival of geese in South Korea

  • Kim, Min-kyung;Lee, Sang-im;Jablonski, Piotr G.;Lee, Sang-Don
    • Journal of Ecology and Environment
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    • 제42권4호
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    • pp.285-291
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    • 2018
  • The impact of climate change on animals has been globally documented. Especially, migration of birds has been extensively monitored as migratory birds are susceptible to any changes occurring both on breeding grounds and on wintering grounds. However, in contrast to spring migration, the patterns and the factors for autumn migration have not been well documented. In this study, we investigated the relationship with climate condition and the first arrival dates (FADs) of bean geese (Anser fabalis) and white-fronted geese (A. albifrons), the representative group of wintering birds in South Korea, using the data collected by Korean Meteorological Association during 1995-2016. Average temperature of September in wintering grounds has increased, and the FADs of the geese have advanced over the 22 years. Even when the influence of autumn temperature was statistically controlled for, the FADs of the geese have significantly advanced. This suggests that warming has hastened the completion of breeding, which speeded up the arrival of the geese at the wintering grounds. In order to assess the effect of climate condition on the arrival of the wintering migratory birds such as the geese in more detail, extensive data collection over many sampling sites and with long-term monitoring is needed.

Functional annotation of de novo variants from healthy individuals

  • Lee, Jean;Hong, Sung Eun
    • Genomics & Informatics
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    • 제17권4호
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    • pp.46.1-46.7
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    • 2019
  • The implications of germline de novo variants (DNVs) in diseases are well documented. Despite extensive research, inconsistencies between studies remain a challenge, and the distribution and genetic characteristics of DNVs need to be precisely evaluated. To address this issue at the whole-genome scale, a large number of DNVs identified from the whole-genome sequencing of 1,902 healthy trios (i.e., parents and progeny) from the Simons Foundation for Autism Research Initiative study and 20 healthy Korean trios were analyzed. These apparently nonpathogenic DNVs were enriched in functional elements of the genome but relatively depleted in regions of common copy number variants, implying their potential function as triggers of evolution even in healthy groups. No strong mutational hotspots were identified. The pathogenicity of the DNVs was not strongly elevated, reflecting the health status of the cohort. The mutational signatures were consistent with previous studies. This study will serve as a reference for future DNV studies.

Asset Pricing and the Volume Effect

  • Park, Jin-Woo;Dukas, Stephen
    • 재무관리논총
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    • 제2권1호
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    • pp.127-144
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    • 1995
  • Previous literature in financial economics documents the existence of a liquidity premium in expected returns, measured by the bid-ask spread. This study provides a more comprehensive test of the egect of liquidity on common stock returns by including trading volume as an additional liquidity measure. we find that trading volume is a relevant measure of liquidity, and affects expected returns even aher controlling for the effects of systematic risk, firm size, and the relative bid-ask spread. We also find that trading volume complements the bid-ask spread as a liquidity measure, and provides additional information about the liquidity premium. The liquidity effect emerges in non-January months as a volume effect, in addition to the spread effect in January documented by Eleswarapu and Reinganum(1993).

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