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2009 NOV 23 ... differential equations," scientists in the United States report. "In our model, cardiac myocytes are rectangular prisms and gap junctions appear in a distributed ... of cells and the effect of different distributions of gap junctions along the myocyte membranes." Hand and colleagues published their study in Bulletin of Mathematical ...
2009 NOV 25 ... research from Chongqing, People's Republic of China, "Based on multilayer dielectric model, for the spherical biological cell subjected to pulsed electric field (PEF), an ... circuit model is presented. Frequency-domain analysis shows that inner and outer membranes exhibit band-pass and low-pass filter characteristics in response to PEF, ...
2009 NOV 23 ... did not change significantly compared with that of the unmodified one. A mathematical model was derived to determine the rate of mass transfer of urea through modified CA ... research from Izmir, Turkey, "In this study, cellulose acetate (CA) based hemodialysis membranes were prepared by a dry phase inversion method and the influences of urease ...
2009 NOV 24 ... between the actin cytoskeleton and the calcium flux through the membrane. In our model, the fluid cell membrane has a mobile but constant population of proteins with a convex ... "The model results are compared to the published observations of calcium waves in cell membranes, and a number of testable predictions are proposed."Veksler and colleagues ...
2009 NOV 24 ... with a flat reservoir to be a quadratic function of curvature. In this analytical model, the degree of sorting is determined by the ratio of two thermodynamic derivatives. ... Journal (Bending Stiffness Depends on Curvature of Ternary Lipid Mixture Tubular Membranes. Biophysical Journal, 2009;97(6):1636-1646).For additional information, ...
2009 NOV 24 ... proteins from the soluble fraction of LFs using sperm adhesion molecule 1 (SPAM1) as a model." "Ultracentrifugation and native Western blot analysis of the soluble ... reduced and low concentrations enhanced delivery of SPAM1 to human and mouse sperm membranes, reflecting physiological states in the epididymal tract. We propose a lipid exchange ...
2009 NOV 23 ... all-atom MD simulations to investigate the interactions of the peptide IL with model membranes. The lipid bilayer formed by the zwitterionic ...
2009 NOV 23 ... Clinic. The researchers concluded: "In this review, we discuss different model membranes, drug-lipid interactions and their significance, studies of model membrane interactions ...
2009 NOV 25 ... duration (the electrical impulse) can be considered a similarity or scaling factor. A model based on the hypothesis that the intensity of membrane permeabilization effects is ... effects, which are caused by permeability changes in the plasma membrane or subcellular membranes."Schoenbach and colleagues published their study in IEEE Transactions on ...
2009 NOV 23 ... interaction with Fe2+ and hydrogen peroxide were tested using erythrocyte membranes as a model. The results show that some compounds, like hesperetin, evidence a pro-oxidant activity ...
2009 NOV 23 ... of some nanomaterials. Evidence for toxic effects of engineered nanoparticles (ENP) on model organisms is increasing.""However, in order to assess the consequences of ... with different TiO2 nanoparticles in stream microcosms, we have shown that microbial membranes were significantly compromised, even under ambient ultraviolet radiation and nano-TiO2 ...
2009 NOV 25 ... detergent-resistant membranes (mDRMs) in reperfused rat hearts, a well-known apoptotic model. Bax insertion into mDRMs correlated with cytochrome c release from such mitochondria. ...
2009 NOV 24 ... with large patches of lipid membranes of heterogeneous compositions. The computational model includes contributions to the system free energy from electrostatic interactions and ...
2009 NOV 24 ... "A model based on continuum hydrodynamics and electrostatics was developed to predict the ... (Effects of Charge on Osmotic Reflection Coefficients of Macromolecules in Fibrous Membranes. Biophysical Journal, 2009;97(6):1595-1605).For additional information, ...
2009 NOV 24 ... that direct apical localization. When expressed in LLC-PK1 cells, a proximal tubule cell model, the PTH1R localizes to both apical and basolateral membranes. The C terminus of the ...
2009 NOV 24 ... with the membrane probes Laurdan and C-laurdan. First, we assessed lipid packing in model membranes of various compositions and found cholesterol and acyl chain dependence of membrane ...
2009 NOV 23 ... concluded: "In addition, the experimental data were analysed using the Spiegler-Kedem model and the transport parameters, i.e., the reflection coefficient (sigma) and solute ... of this study deals with the characterisation of the different types of nanofiltration membranes used (HL, NF200). In the second part the effects of feed pressure, ionic strength, ...
