A free convective unsteady visco-elastic flow through porous medium bounded by an infinite vertical porous plate with variable suction, constant heat flux under the influence of transverse uniform magnetic field along with permeability in the presence of radiation has been investigated in the present study. The suction velocity of the porous medium fluctuates with time about the constant mean. ...

Previous studies have shown that a cationic water-soluble pyridinium zinc phthalocyanine (PPC) is a powerful photosensitizer that is able to inactivate Escherichia coli. In the current work incubation of E. coli cells with PPC in the dark caused alterations in the outer membrane permeability barrier of the cells, rendering the bacteria much more sensitive to hydrophobic compounds, with little e...

A free convective unsteady visco-elastic flow through porous medium bounded by an infinite vertical porous plate with variable suction, constant heat flux under the influence of transverse uniform magnetic field along with permeability in the presence of radiation and chemical reaction has been investigated in the present study. The suction velocity of the porous medium fluctuates with time abo...

Viscous flow, effusion, and thermal transpiration are the main gas transport modalities for a rarefied gas in a macro-porous medium. They have been well quantified only in the case of simple geometries. This paper develops a model based on the homogenization of kinetic equations producing effective transport properties (permeability, Knudsen diffusivity, thermal transpiration ratio) in any poro...

Mitochondrial swelling techniques were used to evaluate the effects of the aminoglycoside antibiotic gentamicin on renal cortical mitochondrial monovalent cation permeability. Gentamicin behaved like EDTA to enhance energy-dependent Na+and K+-acetate uptake with a relatively greater effect on Na+-acetate uptake. MgZ+ prevented and reversed the effects of both EDTA and gentamicin. Neither agent ...

Platelets and platelet-conditioned medium (PCM) decrease endothelial protein permeability in vitro. Adenosine and a >100-kDa protein have previously been implicated as the soluble factors released from platelets that decrease endothelial permeability. The objective of this study was to further investigate the role of adenosine in this platelet response. Measurements of adenosine and its precurs...

The role of vascular permeability in the preferential accumulation of photosensitizers in tumor tissue was investigated. Two murine tumors [experimental mammary tumor carcinoma (EMT-6) and methylcholanthrene-induced rhabdomyosarcoma (M1S)] and a human bladder carcinoma (EJ) were grown s.c. on the flank in athymic nude mice and analyzed for in vivo vessel permeability, vascular permeability fact...

On total reflection from a half–space filled with an isotropic, homogeneous, weakly dissipative, dielectric–magnetic medium with negative phase–velocity (NPV) characteristics , it is shown here that a linearly polarized beam can experience either a negative or a positive Goos–Hänchen shift. The sign of the shift depends on the polarization state of the beam as well as on the signs of the real p...

Topology of isofrequency surfaces plays a crucial role in characterizing the interaction an electromagnetic wave with medium. Thus, engineering topology complex media is leading to novel applications, ranging from super-resolution microscopy hyperbolic metamaterials sub-wavelength waveguiding structures. Here, we investigate spin-governed nature general gyromagnetic We show that gyrotropy also ...

The imbibition has an important influence on the water injection development of ultra-low-permeability reservoirs. In this paper, nuclear magnetic resonance (NMR) high-temperature and high-pressure displacement system was used to simulate formation temperature pressure spontaneous single porosity medium dual (containing fractures), experiments at different rates were carried out. NMR T2 spectru...