• Asian-Australasian Journal of Animal Sciences
• /
• 제14권1호
• /
• pp.41-47
• /
• 2001

Ruminal degradation characteristics of dry matter (DM), neutral detergent fiber (NDF) and crude protein (CP) in fresh leaves of two Japanese native grasses (Zoysia japonica and Miscanthus sinensis) and one sown temperate grass (Dactylis glomerata) were investigated by an in sacco method in spring (mid-May), summer (mid-July) and autumn (mid-September). Japanese native grasses had higher NDF and lower CP concentrations than D. glomerata, and the CP concentration in native grasses decreased in autumn. Ruminal degradability of DM, NDF and CP was lower in native grasses than in D. glomerata (p<0.05) in all seasons. DM and NDF degradability decreased in summer for Z. japonica and D. glomerata, while it decreased in autumn for M. sinensis. CP degradability in Z. japonica was constant throughout the seasons, whereas that in M. sinensis greatly decreased in summer and autumn (p<0.05). It was concluded that Z. japonica could stably supply ruminally digestible nutrients for grazing animals in Japanese native pasture. However, the degradation characteristics of freshly chopped native grasses did not fit the exponential model of $D=a+b(1-e^{-ct})$ proposed by Ørskov and McDonald.

• 디지털융복합연구
• /
• 제12권5호
• /
• pp.149-157
• /
• 2014

본 연구의 목적은 이벤트와 스폰서의 자연적 적합성 수준에 따른 접합화 효과와 스폰서십 효과를 살펴보는 것이다. 특히 설득지식의 활성화를 배경으로 기존의 연구와는 다른 접합화 유형의 조절 효과를 살펴보았으며, 사고방식에 따른 조절효과도 살펴보았다. 연구의 결과 1) 이벤트와 스폰서간의 자연적 적합성이 높은 경우보다 낮은 경우에 접합화 효과는 더 크게 나타났다. 2) 접합화 유형의 조절효과도 확인되었다. 즉 자연적 적합성이 낮은 경우에는 상업적 접합화와 비상업적 접합화 간의 접합화 효과차이가 나타나지 않았지만, 자연적 적합성이 높은 경우에는 상업적 접합화보다 비상업적 접합화에서 접합화 효과는 크게 나타났다. 3) 사고방식의 조절효과는 부분적으로 지지되었다. 즉 이벤트와 스폰서 간의 자연적 적합성이 낮은 경우 예상한 바와 같이 분석적 사고자보다 종합적 사고자에게서 접합화 효과는 크게 나타났지만 통계적으로 유의하지는 않았다. 4) 마지막으로 접합화 효과가 클수록 스폰서 효과(스폰서십 평가, 스폰서 브랜드에 대한 태도)는 높게 나타났다. 이와 같은 연구결과는 효과적인 마케팅커뮤니케이션 수단으로서의 접합화와 그 효과에 관한 이론적 실무적 시사점을 제공한다.

• 디지털콘텐츠학회 논문지
• /
• 제18권6호
• /
• pp.1017-1024
• /
• 2017

기술의 발달은 콘텐츠 미디어의 변화를 가져왔다. 구술 시대의 음성, 소리 미디어에서 시작하여 텍스트, 페인팅을 거쳐, 사실성의 사진 미디어, 이미지에 사운드를 더한 영상 미디어의 발달로 이어져 왔다. 여기서 생각해보아야 할 것은 기술의 발달로 인한 미디어의 변화라는 일방적 영향만이 아니라, 어떤 세대가 어떤 미디어를 접하느냐에 따라 정보의 이해도 및 집중력, 몰입도 등이 달라진다는 것이다. 이에 디지털을 주미디어로 활용하고 있는 디지털 네이티브 세대에 주목하게 된다. 디지털 네이티브 세대의 특징으로는 시각정보를 빠르게 처리하며, 멀티태스킹이 가능하고, 분할주의 능력을 지니고 있는 세대로 연구된 바 있다. 이에 본 논문에서는 디지털 네이티브 세대를 위하여 움직이는 픽토그램을 제안, 픽토그램 중에서도 한계성을 보이고 있는 비상구 픽토그램을 움직이는 픽토그램으로 제안하였으며, 설문지를 통하여 근거를 마련하였다. 디지털 네이티브 세대 특성에 맞춘 새로운 동적 픽토그램, 더 나아가 인터랙티브 동적 픽토그램은 생각하고 연구되어야 하는 분야로 본 논문은 첫 발을 내딛는 연구라고 볼 수 있다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제26권3호
• /
• pp.316-322
• /
• 2013

In order to evaluate the genetic diversity and discrimination among five Korean native chicken lines, a total of 86 individuals were genotyped using 150 microsatellite (MS) markers, and 15 highly polymorphic MS markers were selected. Based on the highest value of the number of alleles, the expected heterozygosity (He) and polymorphic information content (PIC) for the selected markers ranged from 6 to 12, 0.466 to 0.852, 0.709 to 0.882 and 0.648 to 0.865, respectively. Using these markers, the calculated genetic distance (Fst), the heterozygote deficit among chicken lines (Fit) and the heterozygote deficit within chicken line (Fis) values ranged from 0.0309 to 0.2473, 0.0013 to 0.4513 and -0.1002 to 0.271, respectively. The expected probability of identity values in random individuals (PI), random half-sib ($PI_{half-sibs}$) and random sibs ($PI_{sibs}$) were estimated at $7.98{\times}10^{-29}$, $2.88{\times}10^{-20}$ and $1.25{\times}10^{-08}$, respectively, indicating that these markers can be used for traceability systems in Korean native chickens. The unrooted phylogenetic neighbor-joining (NJ) tree was constructed using 15 MS markers that clearly differentiated among the five native chicken lines. Also, the structure was estimated by the individual clustering with the K value of 5. The selected 15 MS markers were found to be useful for the conservation, breeding plan, and traceability system in Korean native chickens.

• 인문언어
• /
• 제7집
• /
• pp.11-30
• /
• 2005

Historical origins of both personal names and place names in Korea are reviewed. It is shown that names of native origin have been largely replaced by those of Sino-Korean names. Some statistics are given on the basis of the 2000 census data in South Korea. A unique method of naming personal names which contain a generation marker called hangnyol is reviewed. This enables the person to figure out one's position and others in the family tree up to as many as ten generations without going consulting the book of genealogy. While this practice had a role to play in a vertically structured society where seniority is important, it is less practiced as the society is becoming more egalitarian, so that native names, not writable in Chinese characters, are on the rise. In this global age, a person is not just a member of his family or clan, s/he is also a member of the international community. The author proposes several things that should be considered in naming to fit the modern global age: euphony of names, ambiguity, possible bad connotations when Romanized, unintended homophones with comic meanings, etc.

• 한국임상수의학회지
• /
• 제19권3호
• /
• pp.290-294
• /
• 2002

The frequencies of gamma-ray-induced micronuclei (MN) in cytokinesis-blocked (CB) lymphocytes at several doses were measured in three donors of Korean native cattle and Korean native goat. Measurements performed after irradiation showed a dose-related increases in MN frequency in each of the donors studied. When analysed by linear-quadratic model the line of best fit was cattle : y : 0.1016D +$0.0118D^2$+0.0147, goat : y = 0.1353D +$0.0043D^2$+0.0087 (y : number of MN/CB cells and D = irradiation dose in Gy). The relative sensitivity of goat lymphocytes compared with cattle lymphocytes was estimated by best fitting linear-quadratic model based on the radiation-induced MN data over the range from 0 Gy to 4 Gy. In the case of MN frequency with 0.05, 0.1, 0.2, 0.4 and 0.8, the relative sensitivities of goat lymphocytes were 1.106. 1.166. 1.140, 1.069 and 0.976 respectively. Our in vitro radiobiological study confirmed that the cytogenetic response obtained in blood from cattle and goat can be utilized for application in environmental studies.

• Asian-Australasian Journal of Animal Sciences
• /
• 제20권5호
• /
• pp.669-676
• /
• 2007

This study was conducted to detect quantitative trait loci (QTL) affecting growth and body composition in an $F_2$ reference population of Korean native pig and Landrace crossbreds. The three-generation mapping population was generated with 411 progeny from 38 $F_2$ full-sib families, and 133 genetic markers were used to produce a sex-average map of the 18 autosomes. The data set was analyzed using least squares Mendelian and parent-of-origin interval-mapping models. Lack-of-fit tests between the models were used to characterize QTL for mode of expressions. A total of 8 (39) QTL were detected at the 5% genome (chromosome)-wise level for the 17 analyzed traits. Of the 47 QTL detected, 21 QTL were classified as Mendelian expressed, 13 QTL as paternally expressed, 6 QTL as maternally expressed, and 7 QTL as partially expressed. Of the detected QTL at 5% genome-wise level, two QTL had Mendelian mode of inheritance on SSC6 and SSC9 for backfat thickness and bone weight, respectively, two QTL were maternally expressed for leather weight and front leg weight on SSC6 and SSC12, respectively, one QTL was paternally expressed for birth weight on SSC4, and three QTL were partially expressed for hot carcass weight and rear leg weight on SSC6, and bone weight on SSC13. Many of the Mendelian QTL had a dominant (complete or overdominant) mode of gene action, and only a few of the QTL were primarily additive, which reflects that heterosis for growth is appreciable in a cross between Korean native pig and Landrace. Our results indicate that alternate breed alleles of growth and body composition QTL are segregating between the two breeds, which could be utilized for genetic improvement of growth via marker-assisted selection.

• Mycobiology
• /
• 제50권2호
• /
• pp.142-149
• /
• 2022

Orchids live with mycorrhizal fungi in mutualism. This symbiotic relationship plays an essential role in the overall life cycle of orchids from germination, growth, settlement, and reproduction. Among the 1000 species of the orchid, the Korean lady's slipper, Cypripedium japonicum, is known as an endangered species. Currently, only five natural habitats of the Korean lady's slipper remain in South Korea, and the population of Korean lady's slipper in their natural habitat is not increasing. To prevent extinction, this study was designed to understand the fungal community interacting in the rhizosphere of the Korean lady's slipper living in the native and artificial habitats. In-depth analyses were performed to discover the vital mycorrhizal fungi contributing to habitat expansion and cultivation of the endangered orchid species. Our results suggested that Lycoperdon nigrescens contributed most to the increase in natural habitats and Russula violeipes as a characteristic of successful cultivation. And the fungi that helped L. nigrescens and R. violeipes to fit into the rhizosphere community in Korean lady's slipper native place were Paraboeremia selaginellae and Metarhizium anisopliae, respectively. The findings will contribute to restoring and maintaining the endangered orchid population in natural habitats.

• Asia pacific journal of information systems
• /
• 제25권2호
• /
• pp.265-288
• /
• 2015

IT convergence services, as the main stream of the digital age, are currently on their way to include the concept of Software as a Service (SaaS), where IT products and services are integrated as one. In particular, the recently introduced web-service-based SaaS is expected to be a more developed SaaS model. This new model provides greater influence on clients' job performances than its previous models, such as application service providers and the web-native phase. However, the effects of technology maturity on task performance have been overlooked in adoption and performance studies. Accordingly, this study introduces SaaS technology maturity as the exogenous technological characteristic influencing job performance. This study also examines the relationships among various SaaS-related performances according to the different levels of SaaS maturity. Results suggest that applying innovative technologies (such as SaaS), particularly when the technology reaches a certain level of maturity, is more helpful for managers in improving task-technology fit and job performance. This study makes an academic contribution by establishing and validating a performance model empirically with SaaS technology maturity perspectives.

• Asian-Australasian Journal of Animal Sciences
• /
• 제24권12호
• /
• pp.1644-1650
• /
• 2011

This study was conducted to detect quantitative trait loci (QTL) affecting meat quality in an $F_2$ reference population of Korean native pig and Landrace crossbreds. The three-generation mapping population was generated with 411 progeny from 38 $F_2$ full-sib families, and 133 genetic markers were used to produce a sex-average map of the 17 autosomes. The data set was analyzed using least squares Mendelian and parent-of-origin interval-mapping models. Lack-of-fit tests between models were used to characterize the QTL for mode of gene expressions. A total of 10 (32) QTL were detected at the 5% genome (chromosome)-wise level for the analyzed traits. Of the 42 QTL detected, 13 QTL were classified as Mendelian, 10 as paternal, 14 as maternal, and 5 as partial expressed QTL, respectively. Among the QTL detected at 5% genome-wise level, four QTL had Mendelian mode of inheritance on SSCs 5, 10, 12, and 13 for cooking loss, drip loss, crude lipid and crude protein, respectively; two QTL maternal inheritance for pH at 24-h and shear force on SSC11; three QTL paternal inheritance for CIE b and Hunter b on SSC9 and for cooking loss on SSC15; and one QTL partial expression for crude ash on SSC13, respectively. Most of the Mendelian QTL (9 of 13) had a dominant mode of gene action, suggesting potential utilization of heterosis for genetic improvement of meat quality within the cross population via marker-assisted selection.