the purpose of this article is to study the factors contributing to the political alienation of the students at shiraz university. to explain the concept of alienation, geyer’s theoretical framework in the social psychology was used. the statistical universe of the research consisted of 6822 persons, of which 400 were taken randomly, using couckran formula. the results show that the variables s...

Tissue migration is a collective behavior that plays a key role in the formation of many organ systems. Although tissue movements are guided by extrinsic cues, in many contexts, their receptors need to be active only at the leading edge to ensure morphogenesis. This has led to the prevalent view that extrinsic signals exert their influence by controlling a small number of leader cells. The zebr...

Toward the establishment of suture closure procedures for atrial septal defect or patent foramen ovale under guidance of three-dimensional (3D) echocardiography but without use of cardiopulmonary bypass (off-pump surgery), an experimental study was conducted using a laparoscopic suture instrument, Maniceps. First, the panel setting of the 3D echo system which was optimal for precisely visualizi...

Image deconvolution is still to be a challenging illposed problem for recovering a clear image from a given blurry image, when the point spread function is known. Although competitive deconvolution methods are numerically impressive and approach theoretical limits, they are becoming more complex, making analysis, and implementation difficult. Furthermore, accurate estimation of the regularizati...

We investigate the emission spectra from the edge of optically pumped waveguide. The waveguide is based on vacuum-deposited thin films of small molecular, 2,5,2',5'-tetrakis(2,2-diphenylvinyl)biphenyl (TDPVBi). Narrowed emissions are observed both at high (> 6 KW/cm2) and low (< 1 W/cm2) pump power sources, which are attributed to two different propagation modes in the asymmetric slab waveguide...

T cells navigate a wide variety of tissues and organs for immune surveillance and effector functions. Although nanoscale topographical structures of extracellular matrices and stromal/endothelial cell surfaces in local tissues may guide the migration of T cells, there has been little opportunity to study how nanoscale topographical features affect T cell migration. In this study, we systematica...

Defining the boundaries of regions of interest in biomedical imagery has remained a difficult real-world problem in image processing. Experience with fully automated techniques has shown that it is usually quicker to manually delineate a boundary rather than correct the errors of the automation. Semi-automated, user-guided techniques such as Intelligent Scissors and Active Contour Models have p...

A edge 2-rainbow dominating function (E2RDF) of a graph G is a ‎function f from the edge set E(G) to the set of all subsets‎ ‎of the set {1,2} such that for any edge.......................

the evaluation of the edge effects of forest roads on ecosystem is very useful to understand changes from forest road. with this regard, in this research the effect of main forest road construction on regeneration and biodiversity of established trees in edge of forest road was investigated at 35 m distance into forest area. an existing 10 years old road segment, with same physiographic propert...

Change detection extracts change areas in bitemporal remote sensing images, and plays an important role urban construction coordination. However, due to image offsets brightness differences traditional algorithms often have reduced applicability accuracy. The development of deep learning-based has improved their accuracy; however, existing models use either convolutions or transformers the feat...