1,077 research outputs found

    Do endotracheal tubes prevent microaspiration?

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    Clarification of homonymy (misnaming) for a grapevine cultivar in Georgia: the case of 'Moldova' alias 'Aladasturi'

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    Two different grape cultivars are grown in Georgia under the name 'Aladasturi', one in the West and one in the East part of the Country. Investigation of ampelographic and ampelometric parameters and nuclear microsatellite markers demonstrated, that the cultivar from West Georgia is the real Georgian autochthonous wine and table grape cultivar 'Aladasturi', while the cultivar from East Georgia is the table grape cultivar 'Moldova' with high resistance to downy mildew, obtained in the Republic of Moldova in the 1960s. This cultivar was probably introduced to Georgia in the period of 1970-1980s. Similarity of berry and bunch characteristics of 'Moldova' and 'Aladasturi' might be the reason for creation of homonymy, respectively misnaming. The homonymous 'Aladasturi' finally turned out to be a misnomer

    ECMO Biocompatibility: Surface Coatings, Anticoagulation, and Coagulation Monitoring

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    The interaction between the patient and the ECMO (extracorporeal membrane oxygenation) circuit initiates a significant coagulation and inflammatory response due to the large surface area of foreign material contained within the circuit. This response can be blunted with the appropriate mix of biocompatible materials and anticoagulation therapy. The use of anticoagulants, in turn, requires appropriate laboratory testing to determine whether the patient is appropriately anticoagulated. Physicians must balance the risks of bleeding with the risks of thrombosis; the proper interpretation of these tests is often shrouded in mystery. It is the purpose of this chapter to help demystify the coagulation system, anticoagulants, biocompatible surfaces, and coagulation testing so that ECMO practitioners can make informed decisions about their patients and to spur coordinated efforts for future research to improve our understanding of these complex processes

    Field genebank standards for grapevines (Vitis vinifera L.)

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    Vector-pseudoscalar two-meson distribution amplitudes in three-body BB meson decays

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    We study three-body nonleptonic decays BVVPB\to VVP by introducing two-meson distribution amplitudes for the vector-pseudoscalar pair, such that the analysis is simplified into the one for two-body decays. The twist-2 and twist-3 ϕK\phi K two-meson distribution amplitudes, associated with longitudinally and transversely polarized ϕ\phi mesons, are constrained by the experimental data of the τϕKν\tau\to\phi K\nu and BϕKγB\to\phi K\gamma branching ratios. We then predict the BϕKγB\to\phi K\gamma and BϕϕKB\to\phi\phi K decay spectra in the ϕK\phi K invariant mass. Since the resonant contribution in the ϕK\phi K channel is negligible, the above decay spectra provide a clean test for the application of two-meson distribution amplitudes to three-body BB meson decays.Comment: 9 pages, 1 figure, Revtex4, version to appear in PR

    A polarized version of the CCFM equation for gluons

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    A derivation for a polarized CCFM evolution equation which is suitable to describe the scaling behavior of the the unintegrated polarized gluon density is given. We discuss the properties of this polarized CCFM equation and compare it to the standard CCFM equation in the unpolarized case.Comment: 15 pages, 6 figures, RevTeX, some minor typos corrected, version to appear in Phys. Rev.

    Paracorporeal Lung Devices: Thinking Outside the Box

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    Extracorporeal Membrane Oxygenation (ECMO) is a resource intensive, life-preserving support system that has seen ever-expanding clinical indications as technology and collective experience has matured. Clinicians caring for patients who develop pulmonary failure secondary to cardiac failure can find themselves in unique situations where traditional ECMO may not be the ideal clinical solution. Existing paracorporeal ventricular assist device (VAD) technology or unique patient physiologies offer the opportunity for thinking “outside the box.” Hybrid ECMO approaches include splicing oxygenators into paracorporeal VAD systems and alternative cannulation strategies to provide a staged approach to transition a patient from ECMO to a VAD. Alternative technologies include the adaptation of ECMO and extracorporeal CO2 removal systems for specific physiologies and pediatric aged patients. This chapter will focus on: (1) hybrid and alternative approaches to extracorporeal support for pulmonary failure, (2) patient selection and, (3) technical considerations of these therapies. By examining the successes and challenges of the relatively select patients treated with these approaches, we hope to spur appropriate research and development to expand the clinical armamentarium of extracorporeal technology
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