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Many clustering protocols for mobile ad hoc networks (MANETs) have been proposed in the literature. With only one exception so far (1), all these protocols are proactive, thus wasting bandwidth when their function is not currently needed. To reduce the signalling traffic load, reactive clustering may be employed.We have developed a clustering protocol named “On‐Demand Group Mobility‐Based Clustering” (ODGMBC) (2), (3) which is reactive. Its goal is to build clusters as a basis for address autoconfiguration and hierarchical routing. In contrast to the protocol described in ref. (1), the design process especially addresses the notions of group mobility and of multi‐hop clusters in a MANET. As a result, ODGMBC maps varying physical node groups onto logical clusters. In this paper, ODGMBC is described. It was implemented for the ad hoc network simulator GloMoSim (4) and evaluated using several performance indicators. Simulation results are promising and show that ODGMBC leads to stable clusters. This stability is advantageous for autoconfiguration and routing mechansims to be employed in conjunction with the clustering algorithm.

By almost any index Mexico has historically struggled in the last century with economic and social growth. For example, Kearney's (2005) well-respected Globalization Index ranks Mexico 42nd in the world and the U.N. Human Development Reports (2003) rank Mexico 53rd in its Human Development Index. Recently, however, Mexico appears to have made a commitment to transform into a competitive nation by privatizing state-owned industries, reducing international commerce barriers and tariffs, attracting foreign investment, and establishing free-trade agreements (NAFTA) with neighbors such as the United States and Canada (Young & Welsch, 1993). However, to sustain the changes, a strong and capable group of domestic entrepreneurs are needed in Mexico.

In the knowledge economy, where the business environment is characterised by turbulence and complexity, knowledge is the main source of creating both innovation and sustainable competitive advantage. This paper describes a conceptual model and an associated set of managerial and organising implications for the innovation‐led company. The question we are trying to answer is: which management and organising characteristics are necessary to manage innovation in the knowledge economy? The paper is based on in‐depth interviews of 32 CEOs and top executives in leading European organisations, 40 people known internationally for their ability to achieve and maintain a position among the top performers in their fields, and a “best practice study” of five leading international companies.

The nature of the collaborations that exists among the organizations in the climate change and agriculture sectors can influence the tailoring of climate forecasts into information useable for adapting agricultural practices to the risks posed by climate change. Also, the extent to which farmers are integrated into this organizational collaboration network can influence their access to climate information. This paper aims to examine how organizational collaborations in the process of climate information generation and dissemination acts as either barriers or enablers of farmers’ access to and use of climate information in Ghana.

This study used key informant interview and questionnaire survey to interview the organizations in the climate change and agriculture sectors. Using network analysis as an analytical framework, the authors estimated the networks’ core-periphery, density, reciprocity and degree centrality.

The authors observed that communication of climate information to farmers is mostly influenced by the collaborations between governmental organizations and nongovernmental organizations. Nevertheless, information flow and exchange through organizational collaboration network is having limited effect on improving farmers’ knowledge about climate risks, impacts and available risk response options. This is mostly because the feedback flow of information from farmers to national level organizations has not been effective in addressing localized climate/agro challenges.

This paper provides a critical overview of key issues in influencing the relevancy and usefulness of climate information in the Ghanaian agriculture sector. Insights gained and recommendations made are essential for deploying effective climate services in Ghana and can be relevant for many African countries because of similar socioeconomic contexts.

Investigates higher stages of human development in some of the world’s most accomplished performers. Indicates that far more frequent experiences of a silent, expanded, restfully alert and non‐attached state of heightened awareness characterize those individuals who display outstanding skill and accomplishment in their action. Interprets these findings in the light of the Vedic Psychology of Maharishi Mahesh Yogi, which describes higher states of consciousness in which peak performances are all‐time phenomena rather than extraordinary happenings. There is widespread agreement that only very few individuals reach the highest stages of human development; as a consequence, there is a considerable latent human potential in organizations and society.