Abstract
Web accessibility is growing in importance as each day goes by. Alongside this growth, is also the increasing need for access to web resources by those with some sort of disability. The web is very important for spreading information and for the interaction between the various elements in society. Given this, it is essential that the web presents itself as a totally accessible resource, so that it can help disabled citizens in their integration within society. This obligation should be even greater for enterprises as primarily the web is used as a marketing and business platform. With this document we would like to present indicators regarding the accessibility levels of Portuguese websites and, we would also like to present a brief comparison between the accessibility levels of the 1000 largest Portuguese enterprises' websites and the accessibility levels of the 1000 best Portuguese SMEs' websites.

Abstract
Organizations with a presence in the Second Life (R) world typically only provide direct user interaction with staff at specific schedules, or not at all. We present a system that provides organizations with a simple way to enable constant interaction with users of the Second Life world, by simulating staff presence using automated avatars as communication channels to real-life staff by means of instant messaging and short message service technologies. Staff members are assigned to communication with Second Life avatars based on a hierarchy of information desk staffing priorities, and communication is bidirectional.

Abstract
Prototypes are valuable tools in Data Warehouse (DW) projects. DW prototypes can help end-users to get an accurate preview of a future DW system, along with its advantages and constraints. However, DW prototypes have considerably smaller development time windows when compared to complete DW projects. This puts additional pressure on the achievement of the expected prototypes' high quality standards, especially at the highly time consuming multidimensional design: in it, a thin margin for harmful unreflected decisions exists. Some devised methods for automating DW multidimensional design can be used to accelerate this stage, yet they are more suitable to DW full projects rather than to prototypes, due to the effort, cost and expertise they require. This paper proposes the semi-automation of DW multidimensional designs using templates. We believe this approach better fits the development speed and cost constraints of DW prototyping since templates are pre-built highly adaptable and highly reusable solutions.

Abstract
In this work, image segmentation is addressed as the starting point within a motion analysis methodology intended for biomechanics behavior characterization. First, we propose a general segmentation framework that uses Atanassov's intuitionistic fuzzy sets (A-IFSs) to determine the optimal image threshold value. Atanassov's intuitionistic fuzzy index values are used for representing the unknowledge/ignorance of an expert on determining whether a pixel belongs to the background or the object of the image. Then, we introduce an extension of this methodology that uses a heuristic based multi-threshold approach to determine the optimal threshold. Experimental results are presented.

Abstract
Currently, methylprednisolone sodium succinate (MPSS) is the standard treatment following acute spinal cord injury (SCI) as a consequence of the results obtained from the National Acute Spinal Cord Injury Studies. However, many have questioned the efficacy of MPSS because of its marginal effects. Additionally there has been criticism of both study design and statistical interpretation. The functional consequences of experimental SCI have been assessed in many ways. The purpose of this investigation was to determine the effects of MPSS vs. saline solution (SS) following moderate T10 contusion injury in rat. Functional recovery was evaluated using the 21-point Basso, Beattie and Bresnahan (BBB) locomotor recovery scale, the inclined plane, the beam walk, footprint analysis and the horizontal ladder. To optimize the precision and accuracy of functional results we examined the locomotion on a treadmill using three-dimensional (3D) analysis. Stereology was used to estimate the amount of damaged tissue. The results of the traditional functional methods showed that administration of the NASCIS dosage of MPSS following acute spinal cord contusion did not lead to any significant differences in the functional recovery of MPSS- vs. SS-treated animals. More importantly, the results of the 3D kinematic showed that the MPSS administration did not affect the flexion/extension of the hip, knee and ankle joints during the step cycle. Finally, stereological results revealed no statistically significant differences between the two experimental groups. Altogether, our results support data previously reported by several authors, suggesting that MPSS does not lead to improved functional outcome following experimental acute SCI.

Abstract
The spread of the Internet throughout society has sparked a revolution in the way many areas of knowledge are promoted. Geographic Information Systems (GIS) are, potentially, such an area. By distributing geospatial information and ways to manipulate it across the Web, a universal broadcast service is achieved, allowing users to access data anywhere. Geographic Information (GI) is usually the realm of specialized companies, and the client's role is often limited to consuming such information. This project aims to conceive a prototype of an architecture that allows the visualization of the Geographic Information System of University of Tras-os-Montes and Alto Douro. This prototype will also be used to feed other systems, also being developed, like navigation systems based on GPS to help people with disabilities, namely, blind users.