Visualization of 3-D volume data through maximum intensity projections (MIP) requires isotropic voxels for generation of undistorted projected images. Unfortunately, due to the inherent scanning geometry, X-ray computed tomographic (CT) images are mostly axial images with submillimeter pixel resolution, with the slice spacing on the order of half to one centimeter. These axial images must be in...

We study the spectral pictures of (jointly) hyponormal 2-variable weighted shifts with commuting subnormal components. By contrast with all known results in the theory of subnormal single and 2-variable weighted shifts, we show that the Taylor essential spectrum can be disconnected. We do this by obtaining a simple sufficient condition that guarantees disconnectedness, based on the norms of the...

A comparative study of spinal connective tissue and its structural arrangement was carried out using tissue preserved in epoxy resin plastinated slices and paraffin embedded sections. The 2.5mm horizontal plastinated slices provide a more complete overview of connective tissue arrangement in the spine, including fibre arrangement, bony attachment sites and, continuity with neighbouring structur...

Determination of the internal stability of reinforced soil walls under earthquake conditions is an important part of seismic design. The horizontal method of slices is used for determining internal stability or for tieback analysis of the reinforced soil wall. A pseudo-dynamic method is adopted in the present analysis, which considers the effect of phase difference in both the shear and primary...

The registration of scan data often uses special markers which are placed in the scene. This leads to a reliable registration but the method is not very efficient. Therefore, we search for a registration method which works without markers. There are methods like the iterative closest point (ICP) algorithm which calculate the registration on the basis of the data itself. However, these algorithm...

Objective(s): Precision-cut tissue slices are considered an organotypic 3D model widely used in biomedical research. The comet assay is an important screening test for early genotoxicity risk assessment that is mainly applied on in vitro models.  The aim of the present study was to provide a 3D organ system for determination of genotoxicity using a modified method of the comet assay since the s...

Introduction: A close link between spreading depression (SD) and several neurological diseases such as epilepsy could be demonstrated in many experimental studies. Epilepsy is among the most common brain disorders. Despite a large number of investigations, its mechanisms have not been yet well elucidated. Hippocampus is one of the important structures involved in seizures. The aim of this st...