• Title/Summary/Keyword: $P^+$ region

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Fuzzy hypotheses testing by fuzzy p-value (퍼지 p-값에 의한 퍼지가설검정)

  • Kang Man-Ki;Choi Gue-Tak
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2006.05a
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    • pp.199-202
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    • 2006
  • We propose some properties of fuzzy p-value and fuzzy significance level to the test statistics for the fuzzy hypotheses testing. Appling the principle of agreement index, we suggest two method for fuzzy hypothesis testing by fuzzy rejection region and fuzzy p-value with fuzzy hypothesis $H_{f,0}$.

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Development of a Plant Transformation Vector, pKCHI (고등식물 형질전환용 유전자 운반체 pKCHI의 개발)

  • 정상호
    • Journal of Plant Biology
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    • v.32 no.1
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    • pp.23-32
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    • 1989
  • We have developed a plasmid vector, pKCH1, for the purpose of higher plant transformation. It contains the promoter region of cauliflower mosaic virus 35S transcript (P35s) and the terminator region of nopaline synthase gene (Tnos) with unique cloning sites, Bam HI and Xba I, between them. After inserting a foreing gene at the cloning sites, P35s-foreign gene-Tnos cassette can be recovered by using a restriction enzyme Hind III.

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Transcriptional Regulation of the Glial Cell-Specific JC Virus by p53

  • Kim, Hee-Sun;Woo, Moom-Sook
    • Archives of Pharmacal Research
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    • v.25 no.2
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    • pp.208-213
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    • 2002
  • The human polyomavirus JC virus is the etiologic agent of progressive multifocal leukoencephalopathy (PML). As the JC virus early promoter directs cell-specific expression of the viral replication factor large T antigen, transcriptional regulation constitutes a major mechanism of glial tropism in PML. It has been demonstrated that SV4O or JC virus large T antigen interacts with p53 protein and regulates many viral and cellular genes. In this study we founts that p53 represses the JC virus early promoter in both glial and nonglial cells To identify the cis-regulatory elements responsible for p53-mediated repression, deletional and site-directed mutational analyses were performed . Deletion of the enhancer region diminished p53-mediated transcriptional repression. However, point mutations of several transcription factor binding sites in the basal promoter region did not produce any significant changes. In support of this observation, when the enhancer was fused to a heterologous promoter, p53 red reduced the promoter activity about three fold. These results indicate that the enhancer region is important for tole repression of JC virus transcription by p53. Furthermore, coexpression of JC virus T antigen with a p53 protein abolished p53-mediated repression of the JC virus early promoter in non-glial cells, but not in glial cells. This finding suggests that T antigen interacts with p53 and regulates JC virus transcription in a cell-specific manner.

The Role of Phosphorus on Plant Succession of Grassland in Andosol Region I. P-cycle in annual and perennial plant communities (강산성 화산회토양에 있어서 초원의 천이에 미치는 인산의 역할 I. 일년생 및 다년생 목초 군락에 있어서 인의 순환)

  • Chung, Chan;Sugawara, Kazuo;Jean, Byong-Tae
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.12 no.3
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    • pp.145-152
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    • 1992
  • Phosphorus(P) cycle of Miscanthus sinensis, Sasa palmata and Artemicia princeps for perennial plants and Polygonwn thunbergii for annual plant were investigated in natural plant communities established in Andosol region. 1. Perennial plants contained about 50-80 % P of the maximum accumulated in whole plant in under ground parts as reserve P before wintering. On the other hand, annual plant returned the most part of P in plant tissues to soil and wintered with a small amount of P in only seed. 2. The storage percentage of K was low compared to P in both perennial and annual plants. And the return of K from litter to soil proceeded rapidly because of easy leaching of K. 3. Perennial plants stored a large amount of P in reserve organs before wintering and carry it over next generation, and P holded in an individual showed a yearly increase. Consequently, P was less susceptible to depressive factor for growth of perennial plants even in poor P circumstances like Andosol region, compared to annual plant.

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A P2P Real-time Game System for Multiplayer on Overlay Network (Overlay Network망에서의 실시간 멀티플레이어 P2P게임 시스템)

  • Jung, Mi-Sook;Park, Kyoo-Seok
    • Journal of Korea Multimedia Society
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    • v.13 no.1
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    • pp.38-46
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    • 2010
  • A stable game managing system is absolutely needed to accept simultaneous interlacing of many users for on- line game system. The proposed P2P on-line game system in this paper is able to get stable and real-time game managing within limited time stamp utilizing through reorganizing peers according to synchronous time which can be avoid congestion on one region, it is possible to synchronize for game nodes within limited time stamp utilizing. Reorganizing M-tree which leads 10 distribute loads. The system manages each region unit, and it is execute no matter how big game sizes are. Thus to ensure such as the problems of expand server and stabilization or message transmission. Also, prove efficiency of the suggested system through the simulation.

A Scalable Hybrid P2P MMOG Cloud Architecture for Load Management in a Region (영역내 부하 관리를 위한 확장적 하이브리드 P2P MMOG 클라우드 구조)

  • Kim, Jin-Hwan
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.22 no.3
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    • pp.83-91
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    • 2022
  • This paper proposes a scalable hybrid P2P(peer-to-peer) cloud architecture for MMOGs(massively multiplayer online games) which includes load management schemes for each region. A game world is divided into several game regions and each game region is serviced by at least one peer(player) in this MMOG cloud environment. The load must be managed regionally to support smooth interactions among them even in the presence of a high concentration of players in a specific region. In the proposed architecture where an efficient and effective provisioning of resources is realized, it is suitable for players to interact with cloud servers effectively and it avoids bottlenecks of the current client-server MMOG architecture. This architecture also relieves a lot of computational power and network traffic, the load on the servers in the cloud by exploiting the capacity of the players. Simulation results show that the proposed hybrid P2P cloud architecture can reduce the considerable bandwidth at the server compared to the client server architecture as the available resources grow with the number of players in crowding or hotspots.

Variation in the Resistance of Japanese Soybean Cultivars to Phytophthora Root and Stem Rot during the Early Plant Growth Stages and the Effects of a Fungicide Seed Treatment

  • Akamatsu, Hajime;Kato, Masayasu;Ochi, Sunao;Mimuro, Genki;Matsuoka, Jun-ichi;Takahashi, Mami
    • The Plant Pathology Journal
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    • v.35 no.3
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    • pp.219-233
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    • 2019
  • Soybean cultivars susceptible to Phytophthora root and stem rot are vulnerable to seed rot and damping-off of seedlings and young plants following an infection by Phytophthora sojae. In this study, the disease responses of Japanese soybean cultivars including currently grown main cultivars during the early growth stages were investigated following infections by multiple P. sojae isolates from Japanese fields. The extent of the resistance to 17 P. sojae isolates after inoculations at 14, 21, and 28 days after seeding varied significantly among 18 Japanese and two US soybean cultivars. Moreover, the disease responses of each cultivar differed significantly depending on the P. sojae isolate and the plant age at inoculation. Additionally, the treatment of 'Nattosyo-ryu' seeds with three fungicidal agrochemicals provided significant protection from P. sojae when plants were inoculated at 14-28 days after seeding. These results indicate that none of the Japanese soybean cultivars are completely resistant to all tested P. sojae isolates during the first month after sowing. However, the severity of the disease was limited when plants were inoculated during the later growth stages. Furthermore, the protective effects of the tested agrochemicals were maintained for at least 28 days after the seed treatment. Japanese soybean cultivars susceptible to Phytophthora root and stem rot that are grown under environmental conditions favorable for P. sojae infections require the implementation of certain practices, such as seed treatments with appropriate agrochemicals, to ensure they are protected from P. sojae during the early part of the soybean growing season.

Site-Directed Mutation Effect of the Symmetry Region at the mRNA 5'-end of Escherichia coli aeg-46.5 Gene

  • Ahn, Ju-Hyuk;Choe, Mu-Hyeon
    • BMB Reports
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    • v.29 no.1
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    • pp.92-97
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    • 1996
  • The age-46.5 gene of Escherichia coli is induced by nitrate ion and regulated by Fnr, NarL, and NarP during anaerobic growth. aeg-46.5::lacZ fusion gene shows its maximum expression in narL host after two hours of aerobic to anaerobic switch in M9-Glc-nitrate medium. Fnr and NarP act as positive regulators, and NarL acts as a negative regulator. The control region of the aeg-46.5 was identified and the binding sites of regulator proteins have been predicted (Reznikoff and Choe (1993)). It has two symmetry regions. One is located at -52~-37 bp from the anaerobic mRNA 5'-end, which is the binding site of NarL and NarP. The other is located at +37~+56 bp from the 5'-end of mRNA. In this study, the downstream symmetry region from the mRNA 5'-end was investigated by site-directed mutagenesis. The destruction of the symmetry region increases the expression level of aeg-46.5. We propose that the symmetry region interferes with the expression of aeg-46.5 possibly by forming a stem-and-loop structure.

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Analysis of Neurophysiological Approaches to the Intervention of Cerebral palsid child (뇌성마비아 중재에 있어서 신경생리학적 접근기법의 분석)

  • Shin Hong-Cheul;Kang Jung-Koo;Hwang Hwan-Ick;Soe Gyu-Won
    • The Journal of Korean Physical Therapy
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    • v.10 no.1
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    • pp.53-65
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    • 1998
  • The main purpose of this paper is to analyze the modes of therapeutic intervention. The emphasis is on the neurophysiological perpective arising out of neurological principles and developmental concepts. The obtained results are as follows. 1. The important hypostheses predicted that the group intervened by neurodevelopmental approach would improve motor function better than the group done by traditional approach and it was proved that neurodevelopmental approach was more effective in gross motor region(P<.01) 2. In the comparison of type of involovement, neurodevelopmental intervention group in spastic type showed improvements in the region of gross motor.(P<.001) 3. In the comparision of degree of disorder, neurodevelopmental intervention group showed improvement of motor function in all the gross motor region in the mild, moderate and severe case.(P<.001) 4. In the comparison of ages of intervention beginning, the group of child between 25-36, 49-60 and 61-72 months(P<.001) intervened by neurodevelopmental approach showed improvements of motor function. 5. In the comparison of intervention duration, neurodevelopmental intervention group showed improvements of motor function in gross motor region according to intervention durstion(P<.001)

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Molecular Control of Gene Co-suppression in Transgenic Soybean via Particle Bombardment

  • El-Shemy, Hany A.;Khalafalla, Mutasim M.;Fujita, Kounosuke;Ishimoto, Masao
    • BMB Reports
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    • v.39 no.1
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    • pp.61-67
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    • 2006
  • Molecular co-suppression phenomena are important to consider in transgene experiments. Embryogenic cells were obtained from immature cotyledons and engineered with two different gene constructs (pHV and pHVS) through particle bombardment. Both constructs contain a gene conferring resistance to hygromycin (hpt) as a selective marker and a modified glycinin (11S globulin) gene (V3-1) as a target. sGFP(S65T) as a reporter gene was, however, inserted into the flanking region of the V3-1 gene (pHVS). Fluorescence microscopic screening after the selection of hygromycin, identified clearly the expression of sGFP(S65T) in the transformed soybean embryos bombarded with the pHVS construct. Stable integration of the transgenes was confirmed by polymerase chain reaction (PCR) and Southern blot analysis. Seeds of transgenic plants obtained from the pHV construct frequently lacked an accumulation of endogenous glycinin, which is encoded by homologous genes to the target gene V3-1. Most of the transgenic plants expressing sGFP(S65T) showed highly accumulation of glycinin. The expression of sGFP(S65T) and V3-1 inherits into the next generations. sGFP(S65T) as a reporter gene may be useful to increase the transformation efficiency of transgenic soybean with avoiding gene co-suppression.