Abstract
Adsorption equilibrium of fructose, glucose and sucrose was evaluated on sulfonated poly(styrene-co-divinylbenzene) cation-exchange resins. Two types of resins were used: potassium (K(+)) gel-type and sodium (Na(+)) macroporous resins. Influence of the cation and effect of the resin structure on adsorption were studied. The adsorption isotherms were determined by the static method in batch mode for mono-component and multi-component sugar mixtures, at 25 and 40 degrees C, in a range of concentrations between 5 and 250gL(-1). All adsorption isotherms were fitted by a linear model in this range of concentrations. Sugars were adsorbed in both resins by the following order: fructose > glucose > sucrose. Sucrose was more adsorbed in the Na(+) macroporous resin, glucose was identically adsorbed, and fructose was more adsorbed in the K(+) gel-type resin. Data obtained from the adsorption of multi-component mixtures as compared to the mono-component ones showed a competitive effect on the adsorption at 25 degrees C, and a synergetic effect at 40 degrees C. The temperature increase conducted to a decrease on the adsorption capacity for mono-component Sugar mixtures, and to an increase for the multi-component mixtures. Based on the selectivity results, K(+) gel-type resin seems to be the best choice for the separation of fructose, glucose and sucrose, at 25 degrees C.

Abstract
Complex networks from domains like Biology or Sociology are present in many e-Science data sets. Dealing with networks can often form a workflow bottleneck as several related algorithms are computationally hard. One example is detecting characteristic patterns or "network motifs" - a problem involving subgraph mining and graph isomorphism. This paper provides a review and runtime comparison of current motif detection algorithms in the field. We present the strategies and the corresponding algorithms in pseudo-code yielding a framework for comparison. We categorize the algorithms outlining the main differences and advantages of each strategy. We finally implement all strategies in a common platform to allow a fair and objective efficiency comparison using a set of benchmark networks.We hope to inform the choice of strategy and critically discuss future improvements in motif detection. © 2009 IEEE.

Abstract
Purpose: The purpose of this paper is to present a methodology for incubating business ideas in rural communities in Portugal. The work provides an example of a bottom-up approach to rural entrepreneurship. Design/methodology/approach: The paper analyses case study of an entrepreneurial support organisation conceived and used in rural European regions and aiming at local development through entrepreneurial boost. Findings: Although the methodology for incubating business ideas was adapted from a similar situation in France, its originality comes from the description of how the awareness of local specificities requires a calibration of the framework. Research limitations/implications: The case study is the outcome of a pioneering study of incubation of business ideas in rural areas. Further research needs to be taken in order to claim generalisability of these findings to other less favoured target groups. Practical implications: The incubation of business ideas can be used to encourage local development in declining rural regions. It is important to calibrate the framework used to the local/regional reality. Originality/value: Apart from being innovative in providing a supportive entrepreneurial infrastructure with mentoring people-based support in the creation of new firms in rural areas, it is also a nation-wide entrepreneurial service innovation. © Emerald Group Publishing Limited.

Abstract
Unified Communications (UC) have the potential to dramatically simplify and improve enterprise communications, reducing costs and improving revenue opportunities. However, these benefits do not come without risks. The introduction of an IP-based UC solution brings an array of new vulnerabilities into the enterprise, exploited by a growing number of malicious programs. This paper presents the most common of risks faced by the major dominant technologies used in unified communications solutions and an approach to mitigate them.

Abstract
Learning environments where all participants can present their ideas, where all contribute to discuss and assess those ideas are in our opinion essential to improve the learning process. Grading peers is also important to the development of motivation and sense of responsibility. The Moodle's Workshop module seems to address this issues. However, this module is rarely used and, is planned to be removed from the next release. We run a set of tests and inquiries that led us to conclude that its usability is very low, its interface is generically pour-understandable and the final grades for the activity are usually surprising. In this work we present a reformulation of the workshop in which concerns the configuration interface, the administration module, and the final grades page. The preliminary results indicate an improvement of more than 300% of the usability. Future development plans include full integration of the code in the Moodle LMS and testing the new module for improvement and measuring of real usefulness. ©2009 IEEE.

Abstract
Purpose - The main purpose of the paper is to provide an example of a bottom-up approach to entrepreneurial policy and its mismatch with the top-down approach SMEs policy. Design/methodology/approach - The paper analyses a case study of an entrepreneurial support organisation that addresses local development in rural areas. Findings - The paper highlights the important role of innovation in rural areas and the need to close the gap between entrepreneurial policy and SMEs policy. Research limitations/implications - The main limitation stems from the fact that it is the outcome of a single case study. One practical implication is that the incubation of business ideas poses a challenge when there is a mismatch between entrepreneurial policy and SMEs policy.