• 제목/요약/키워드: Functional failure probability

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A Proteomic Screen for Presynaptic Terminal N-type Calcium Channel (CaV2.2) Binding Partners

  • Khanna, Rajesh;Zougman, Alexandre;Stanley, Elise F.
    • BMB Reports
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    • 제40권3호
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    • pp.302-314
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    • 2007
  • N type calcium channels (CaV2.2) play a key role in the gating of transmitter release at presynaptic nerve terminals. These channels are generally regarded as parts of a multimolecular complex that can modulate their open probability and ensure their location near the vesicle docking and fusion sites. However, the proteins that comprise this component remain poorly characterized. We have carried out the first open screen of presynaptic CaV2.2 complex members by an antibody-mediated capture of the channel from purified rat brain synaptosome lysate followed by mass spectroscopy. 589 unique peptides resulted in a high confidence match of 104 total proteins and 40 synaptosome proteome proteins. This screen identified several known CaV2.2 interacting proteins including syntaxin 1, VAMP, protein phosphatase 2A, $G_{o\alpha}$, G$\beta$ and spectrin and also a number of novel proteins, including clathrin, adaptin, dynamin, dynein, NSF and actin. The unexpected proteins were classified within a number of functional classes that include exocytosis, endocytosis, cytoplasmic matrix, modulators, chaperones, and cell-signaling molecules and this list was contrasted to previous reports that catalogue the synaptosome proteome. The failure to detect any postsynaptic density proteins suggests that the channel itself does not exhibit stable trans-synaptic attachments. Our results suggest that the channel is anchored to a cytoplasmic matrix related to the previously described particle web.

$^{99m}Tc-DMSA$ 신티그램을 이용한 신질환 형태 분류 (Morphological classification of Renal Disease Using $^{99m}Tc-DMSA$ Scintigram)

  • 문태용
    • 대한핵의학회지
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    • 제25권2호
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    • pp.237-244
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    • 1991
  • $^{99m}Tc-DMSA$ renal scan has been evaluated not only the renal functional cell mass but also some anatomical structures at a loss of the renal parenchymal function. The author classified a renal morphology of the posterior image of $^{99m}Tc-DMSA$ renal scan as the groups of symmetric and asymmetric morphology, the groups of the large, normal and small sized kidneys, the groups of the central photon defects (PD) which could be noted in a dilated pelvocalyceal system due to obstructive uropathy and the cortical photon defects (CD) due to focal parenchymal lesions or scars after a loss of function and the last groups of the single and multiple CD for a suggestion of the clinical usefulness. Regarding to measurement of normal renal size, the longest size of the kidneys were evaluated with 5 cm of a lead scale on the posterior renal image, and those were decided to the limits beteen 104.1 and 119.4 mm as comparison with the renal size of intravenous pyelogram (IVP) in 59 cases who were underwent $^{99m}Tc-DMSA$ and IVP concommitantly. Among 85 cases of PD in $^{99m}Tc-DMSA$ renal scan, the 61 (71.8%) were cases of a dilated pelvocalyceal system related with obstructive uropathy, meanwhile the 28 (27.0%) of 162 cases with CD were cases of obstructive and infectious uropathy. The probability of a presence of some uropathy in cases of CD were 99.3%, meanwhile that of the presence of CD in cases of some uropathy were 37.9%. Besides, there were some specific anatomical findings such as polycystic kidneys with symmetric enlarged kidneys with multiple CD and the kidneys of chronic renal failure and/or hypertension with symmetric small size in $^{99m}Tc-DMSA$ renal stan.

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2급 지적 장애를 가진 환자의 SDA 개념을 적용한 전악 수복 증례 (Full mouth rehabilitation of an oligodontia patient with intellectual disability based on shortened dental arch concept: a case report)

  • 유재욱;허성주;김성균;곽재영
    • 대한치과보철학회지
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    • 제50권4호
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    • pp.330-335
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    • 2012
  • Shortened dental arch(SDA) 개념은 여러 현실적인 이유로 적절한 대안이 없을 경우 제 2 소구치까지만 수복이 이루어져도 안정적인 교합과 저작력을 얻을 수 있다는 것으로 자연치와 임플란트를 이용한 수복시 공히 적용되는 개념이다. 본 증례는 2급 지적장애로 인해 치료시 협조를 구할 수 없으며 우식으로 인해 다수의 치아가 상실된 환자로 대구치 부위의 심한 골흡수와 상악동의 함기화 및 상악동염으로 인해 제 2 대구치까지의 수복이 용이하지 않아 가급적 위험요인을 줄이면서 최소한의 전신마취로 치료를 종결하기 위해 SDA 개념을 적용, 제 2 소구치까지만 수복이 이루어졌다. 치료 결과 심미적, 기능적으로 만족할 만한 향상이 이루어졌고 추가적인 저작력의 요구는 없었으며 주기적인 재내원으로 구강위생이 강화되었다.

COMPENSATION STRUCTURE AND CONTINGENCY ALLOCATION IN INTEGRATED PROJECT DELIVERY SYSTEMS

  • Mei Liu;F. H. (Bud) Griffis;Andrew Bates
    • 국제학술발표논문집
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    • The 5th International Conference on Construction Engineering and Project Management
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    • pp.338-343
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    • 2013
  • Integrated Project Delivery (IPD) as a delivery method fully capitalizes on an integrated project team that takes advantage of the knowledge of all team members to maximize project outcomes. IPD is currently the highest form of collaboration available because all three core project stakeholders, owner, designer and contractor, are aligned to the same purpose. Compared with traditional project delivery approaches such as Design-Bid-Build (DBB), Design-Build (DB), and CM at-Risk, IPD is distinguished in that it eliminates the adversarial nature of the business by encouraging transparency, open communication, honesty and collaboration among all project stakeholders. The team appropriately shares the project risk and reward. Sharing reward is easy, while it is hard to fairly share a failure. So the compensation structure and the contingency in IPD are very different from those in traditional delivery methods and they are expected to encourage motivation, inspiration and creativity of all project stakeholders to achieve project success. This paper investigates the compensation structure in IPD and provides a method to determine the proper level of contingency allocation to reduce the risk of cost overrun. It also proposes a method in which contingency could be used as a functional monetary incentive when established to produce the desired level of collaboration in IPD. Based on the compensation structure scenario discovered, a probabilistic contingency calculation model was created by evaluating the random nature of changes and various risk drivers. The model can be used by the IPD team to forecast the probability of the cost overrun and equip the IPD team with confidence to really enjoy the benefits of collaborative team work.

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