We prepared rapid prototyping models of heads with unruptured cerebral aneurysm based on image data of computed tomography angiography (CTA) using a three-dimensional (3D) printer. The objective of this study was to evaluate the anatomical reproducibility and accuracy of these models by comparison with the CTA images on a monitor. The subjects were 22 patients with unruptured cerebral aneurysm ...

The characterization of tissue morphology in murine models of pathogenesis has traditionally been carried out by excision of affected tissues with subsequent immunohistological examination. Excision-based histology provides a limited two-dimensional presentation of tissue morphology at the cost of halting disease progression at a single time point and sacrifice of the animal. We investigate the...

OBJECTIVES To evaluate the incidence of chorioretinal anastomosis after radial optic neurotomy and to determine its effect on visual acuity and foveal thickness in patients with central retinal vein occlusion. METHODS We conducted a prospective, uncontrolled, interventional study of 14 patients with preoperative visual acuities below 20/125. Pars plana vitrectomy and radial optic neurotomy we...

A scintillation counting system has been constructed with the use of BC-400 and EJ-212 series plastic scintillators along with a subminiature photomultiplier tube to investigate the effect of increasing plastic scintillator thickness on system integrated counts. Measurements have been carried out using four different gamma sources with different energies ranging from 6keV to 1.332MeV and a Ni-6...

In this article, we describe the first results of two series of experiments. It is the aim of our experiments to compare the performance of novice users working with ı̇∗ models. We compared the results achieved with ı̇∗ diagrams in the traditional notation with the results using the alternative notation which has been suggested by using Moody’s “Physics of Notations” framework. We created two mod...

The behavior of agents in multi-agent systems is hard to control without restricting the agents’ autonomy. Normative organizations have been deployed successfully to deal with this. A core requirement of a normative organization is that norm violations can be observed and dealt with. Due to the distributed nature of multi-agent systems it is often fitting that this is done decentrally. In this ...

The study was designed to determine if spatial location of movement was automatically encoded in memory by children with intellectual disabilities (ID) and typically developing (TD) children. Each participant performed motor exercises at each of four selected locations on a 20X20 m field. The condition variable consisted of intentional position-intentional exercise, incidental position-intentio...

A stable three-layer flow system, water/organic solvent/water, has been successfully applied for the first time in a microchannel to get rapid transport through an organic liquid membrane. In the continuous laminar flow region, the analyte (methyl red) was rapidly extracted across the microchannel from the donor to the acceptor phase through the organic solvent phase (cyclohexane). Thermal lens...

MRI has recently been applied to study the retina in vivo. Measurements of relaxation time constants (T1, T2, and T2*) and the apparent diffusion coefficient (ADC) of the retina would be useful to systemically optimize structural, physiological, and functional MRI contrasts. MRI studies were performed on 12 anesthetized and paralyzed rats. High-resolution T1, T2, T2* and ADC of the rat eyes wer...

We examined whether children's ability to integrate speech and gesture follows the pattern of a broader developmental shift between 3and 5-year-olds (Ramscar & Gitcho, 2007) regarding the ability to process two pieces of information simultaneously. In Experiment 1, 3-year-olds, 5-year-olds and adults were presented with either an iconic gesture or a spoken sentence or a combination of the two o...