The ability of epithelial cells to polarize requires cell-cell adhesion mediated by cadherin receptors. During cell-cell contact, the mechanism via which a flat, spread cell shape is changed into a tall, cuboidal epithelial morphology is not known. We found that cadherin-dependent adhesion modulates actin dynamics by triggering changes in actin organization both locally at junctions and within ...

the importance of extra cellular matrix (ecm) in development and function of different cells has been reported but little is known about its role in human endometrial epithelial cells. the aim of the present study was to examine effects of artificial ecm (matrigel) and progesterone on the function and morphology of human endometrial epithelial cells in vitro. methods: endometrial samples were r...

9,10-dihydro-9,10-ethano-anthracene-11,12-dicarboxylic acid disodium salt (dheas) was synthesized andused as a nucleating agent for poly(1-butene) (ipb). the isothermal crystallization kinetics of ipb havingdifferent nucleating agents were investigated by differential scanning calorimetry (dsc) and polarized opticalmicroscopy (pom). the results showed that the nucleating agents increased the cr...

the main purpose of this research is to investigate computationally the tautomeric reaction pathway of 5-methyl-3-methylthio-1,2,4-triazole from the thermodynamical and mechanistical viewpoints. in this respect, density functional theory (dft) in conjunction with the quantum theory of atoms in molecule (qtaim) has been employed to model the energetic and electronic features of tautomeric mechan...

Photostructural transformations in amorphous films of chalcogenide glasses (ChG) under light irradiation present scientific and practical interests. That is well known that the composition of ChG determines the kind of structural units and the mean coordination number. In the present work the amorphous films of the chalcogenide systems As100-xSex (x=40÷98), As40Se60:Sny (y=0÷10.0 at.% Sn), as w...

We developed a glasses-free 3D stereoscopic display using an LCD display panel and a special grating film for stereoscopic viewing. The display screen is divided in half in order that left and right regions provide the stereoscopic images for left and right eyes. Because both stereoscopic images are not in the same position, it is difficult for the observer to view the 3D image by the stereovie...

Migratory birds use multiple compass systems for orientation, including a magnetic, star and sun/polarized light compass. To keep these compasses in register, birds have to regularly update them with respect to a common reference. However, cue-conflict studies have revealed contradictory results on the compass hierarchy, favoring either celestial or magnetic compass cues as the primary calibrat...

A 1 TeV linear ee collider with high luminosity and polarized beams is now a distinct possibility. If spin rotators can produce transversely polarized beams (TPB), providing two more vectors, they would make it possible to observe CP violation by observing a single final-state particle without measuring its spin. Two specific processes have been considered: a) ee → tt̄1,2 The four-Fermi Lagrangi...

The analysis of monomolecular layers has traditionally been a challenging spectroscopic measurement due to the relatively low signal obtained from the sample. Specular reflectance at high “grazing” angles (around 80 degrees from normal to the surface) has been recognized as one of the best spectroscopic techniques to monitor monomolecular layers on reflective surfaces due to the enhancement of ...