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121.
Abdolhossein Amini 《Facies》2006,52(4):579-597
The Oligo-Miocene Zivah Formation forms the principal reservoir unit in the Moghan area of northwest Iran. Characterization
of the constituent facies of the formation and their spatial distribution represent a major aspect of this investigation.
The combination of results from the field and laboratory studies lead to the determination of 18 lithofacies and 13 petrofacies
(petrographic lithofacies). Three major types of sedimentary cycles (small-, medium-, and large-scale cycles) of variable
thickness (few meters, few tens of meters, few hundreds of meters, respectively) are recognized on the basis of facies association
properties. Depositional environments representing each facies and facies association are defined and interpreted on the basis
of their sedimentological characteristics. The major depositional systems of the Zivah Formation are interpreted as fluvial-dominated
deltas on the shelf of the South Caspian Sea (or Paratethys). The principal controls on sedimentation are discussed in terms
of lithofacies/petrofacies characteristics and the nature of sedimentary cycles. Development of large-scale cycles is related
to world-wide sea-level change (eustasy), medium-scale cycles to tectonism along the basin margin, and small-scale cycles
to the rate of sediment supply and local environmental conditions. Active tectonism seems to be the main cause for high sediment
supply to the Zivah Basin. 相似文献
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A respiratory system model (RSM) is developed for the deflation process of a quasistatic pressure-volume (P-V) curve, following the model for the inflation process reported earlier. In the RSM of both the inflation and the deflation limb, a respiratory system consists of a large population of basic alveolar elements, each consisting of a piston-spring-cylinder subsystem. A normal distribution of the basic elements is derived from Boltzmann statistical model with the alveolar closing (opening) pressure as the distribution parameter for the deflation (inflation) process. An error minimization by the method of least squares applied to existing P-V loop data from two different data sources confirms that a simultaneous inflation-deflation analysis is required for an accurate determination of RSM parameters. Commonly used terms such as lower inflection point, upper inflection point, and compliance are examined based on the P-V equations, on the distribution function, as well as on the geometric and physical properties of the basic alveolar element. 相似文献
125.
MR Scrochi CN Zanuzzi N Fuentealba F Nishida ME Bravi ME Pacheco 《Biotechnic & histochemistry》2017,92(8):560-568
Many viruses alter different stages of apoptosis of infected cells as a strategy for successful infection. Few studies have addressed mechanisms of equine herpesvirus 1 (EHV-1) strain-induced cell death. We investigated the effect of an abortigenic strain (AR8 strain) on heterologous Madin–Darby bovine kidney cells and homologous equine dermis (ED) cells cell lines. We compared morphologic and biochemical features of early and late apoptosis at different postinfection times. We investigated translocation of phosphatidylserine to the cell surface, nuclear fragmentation and changes in the cytoskeleton using flow cytometry and annexin V/propidium iodide staining, DNA laddering, terminal deoxynucleotidyl transferase UTP nick-end labeling assay and immunofluorescence staining of cytokeratin 18 cleavage. AR8 EVH-1 strain interfered with apoptosis in both cell lines, particularly during the middle stage of the replication cycle; this was more evident in ED cells. Although this antiapoptotic effect has been reported for other alpha herpesviruses, our findings may help elucidate how EHV-1 improves its infectivity during its cycle. 相似文献
126.
Deshpande NV Sabaté M Ligthart JM Kutryk MJ Serruys PW 《International journal of cardiovascular interventions》1998,1(1):45-48
Jailing of a side-branch is a known complication of stent implantation, and makes access to the side-branch difficult, especially if the stent is of the self-expanding type. Although plain balloon angioplasty is feasible for the jailed side-branches, the use of newer devices (a stent, Rotablation or atherectomy) has not been described. We describe a novel way of treating a side-branch jailed by a self-expanding stent by using stent implantation through the strut of a self-expanding stent. 相似文献
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