• Title/Summary/Keyword: $S_{y}$

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THE EFFECT OF LEUCONOSTOC LACTIS 51 AGAINST THE PLAQUE FORMATION OF STREPTOCOCCUS MUTANS (Streptococcus mutans의 치태형성에 대한 Leuconostoc lactis 51의 영향)

  • Kim, Tae-Geun;Yang, Kyu-Ho;Oh, Jong-Suk
    • Journal of the korean academy of Pediatric Dentistry
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    • v.27 no.4
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    • pp.549-557
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    • 2000

  • Dental caries is a bacterial disease of the dental hard tisssus, characterized by a localized, progressive, molecular disintegration of tooth structure. The action of Leuconostoc lactis 51 about plaque formation and replication by Streptococcus mutans was studied as follows. 1. Lower amount of plaque was produced at the mixed culture of S. mutans and L. lactis 51 than S. mutans alone on the wires in the beaker. 2. Fewer cells of S. mutans were replicated at the mixed culture of S. mutans and L. lactis 51 than S. mutans alone. 3. In M17Y broth, viable cells of S. mutans and L. lactis 51 increased for 12 hours, and decreased for 24 hours. In M17YS broth, viable cells of S. mutans showed time-dependent decrease at mixed culture of S. mutans and L. lactis 51. 4. The culture supernatant of L. lactis 51 didn't inhibit the replication of S. mutans and the formation of artificial plaque. 5. Sucrose and frutose were extracted from the culture supernatant of L. lactis 51 in M17YS broth. These results suggest that L. lactis 51 isolated from the oral cavity inhibits the replication of S. mutans and the formation of artificial plaque.

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A Hybrid QoS Management Model for Distributed Multimedia Services in Ubiquitous Computing (유비쿼터스 컴퓨팅에서 분산 멀티미디어 서비스를 위한 하이브리드 QoS 관리 모델)

  • Jeong, Chang-Won;Lee, Geon-Yeob;Joo, Su-Chong
    • The KIPS Transactions:PartA
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    • v.15A no.2
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    • pp.101-110
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    • 2008

  • Ubiquitous computing has extended the computer system into the whole physical space and has ushered the emergence of more dynamic distributed systems. This environment require unique QoS parameters for various devices, resources and user requirements. In this paper, we propose a new hybrid QoS management model which defines a static-dynamic QoS parameter that is more appropriate to the ubiquitous computing environment. This model consists of the QoS Control Management Module(QoS CMM) in the client side and the Resource QoS Management Module (RQoS MM) in the server side. The RQoS MM deals with the static QoS parameters and the whole QoS control of the distributed control(QoS CMM) in order to minimize server load in cases of multiple communication. Finally, we present the experimental result of our location based application using a graphical user interface that shows the multimedia service execution of selected client device types such as desktop PC, notebook and PDA.

  • https://doi.org/10.3745/KIPSTA.2008.15-A.2.101 인용 PDF KSCI

A More Effective Method of IUI

  • Lee, J.Y.;Hwang, K.J.;Chang, H.S.;Choi, H.J.;Kim, Y.B.;Cho, P.J.;Kim, M.R.
    • 대한생식의학회:학술대회논문집
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    • 2001.06a
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    • pp.80.1-80.1
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    • 2001

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