The epithelial cells exhibit either a columnar or a flat shape dependent on extracellular stimuli or the cell-cell adhesion. Membrane-anchored ephrinA stimulates EphA receptor tyrosine kinases as a ligand in a cell-cell contact-dependent manner. The mechanism through which ephrinA1/EphA2 signal regulates the cell morphology remains elusive. We demonstrate here that ephrinA1/EphA2 signal induces...

The nuclear envelope (NE), a double membrane enclosing the nucleus of eukaryotic cells, controls the flow of information between the nucleoplasm and the cytoplasm and provides a scaffold for the organization of chromatin and the cytoskeleton. In dividing metazoan cells, the NE breaks down at the onset of mitosis and then reforms around segregated chromosomes to generate the daughter nuclei. Rec...

We determined the shape of membrane cylinder adherent to a flat support and derived the relationship between the energy of membrane adhesion and the geometncal charactenstics of membrane contour The obtained theoretical results allow an altemative method of adhesion energj measurement in addition to the method which includes the measurement of contact angle Two different cases are analytically ...

We introduce and study the behavior of a tethered membrane of non-zero thickness embedded in three dimensions subject to an effective self-attraction induced by hydrophobicity arising from the tendency to minimize the area exposed to a solvent. The phase behavior and the nature of the folded conformations are found to be quite distinct in the small and large solvent size regimes. We demonstrate...

in this study the catalytic dehydrogenation of ethylbenzene to styrene was investigated in a simulated tubular sodalite membrane reactor. the high quality microporous sodalite membrane was synthesized by direct hydrothermal method and characterized by single gas permeation measurements. the performance of the prepared membrane showed high potential for application in a dehydrogenation membrane ...

A 67-year-old man underwent a trabeculectomy for pseudo-exfoliative glaucoma. The postoperative course was complicated by overfiltration with hypotony and a flat anterior chamber (AC) with lens touch. While the AC chamber was refilled at the slitlamp with a viscoelastic (Healon), stripping of Descemet’s membrane was observed. The patient was referred to our department. Slitlamp examination show...

Motivated by experiments on colloidal membranes composed of chiral rod-like viruses, we use Monte Carlo methods to determine the phase diagram for liquid crystalline order rods and membrane shape. We generalize Lebwohl-Lasher model a nematic with coupling curved surface edge tension resistance bending, include an energy cost tilting relative local normal. The is represented triangular mesh hard...

Animal models of colitis, which develop dysplasia and cancer similar to human ulcerative colitis are needed to further investigate the dysplasia cancer sequence. This study describes the expression of B-catenin and p53 along with the histopathology and inflammation scores as they relate to dysplasia and cancer in the dextran sulfate sodium (DSS) colitis model. Swiss Webster mice were fed with 5...

A rectangular rod is placed in a flow field flowing parallel to a flat plate. Effect of chord-thickness ratio of rectangular rod on developing vortex shedding downstream to the rod is studied. Then, for each one of the aspect ratios, the distance of the rod from the neighboring flat plate is reduced until the rod sticks to the flat plate. In each case, the effect of the flat plate boundary laye...

A novel nanofiltration membrane, whose active layer consists of 98.6 wt% a thermocatalytic perovskite with composition Sr0.85Ce0.15FeO3-δ (CSF), 1.0 graphene oxide (GO), and 0.4 humic acid-like (HAL) crosslinker, was deposited over commercial flat-sheet polyethersulfone support good reproducibility by simple 1-step coating procedure. The synergistic coupling CSF the crosslinked GO resulted in a...