Home About us Contact
|
Home About us Contact | ||
|
|
||
Management Solutions (management + solution)
Selected AbstractsHydroGeo Analyst: A Data Management Solution to Ground Water and Environmental ProjectsGROUND WATER, Issue 3 2008Yongqiang Qi First page of article [source] Management solutions for QoS support over the entire audio-visual service distribution chainINTERNATIONAL JOURNAL OF NETWORK MANAGEMENT, Issue 5 2007George Kormentzas No abstract is available for this article. [source] A dynamic key management solution to access hierarchyINTERNATIONAL JOURNAL OF NETWORK MANAGEMENT, Issue 6 2007Xukai Zou Hierarchical access control (HAC) has been a fundamental problem in computer and network systems. Since Akl and Taylor proposed the first HAC scheme based on number theory in 1983, cryptographic key management techniques for HAC have appeared as a new and promising class of solutions to the HAC problem. Many cryptographic HAC schemes have been proposed in the past two decades. One common feature associated with these schemes is that they basically limited dynamic operations at the node level. In this paper, by introducing the innovative concept of ,access polynomial' and representing a key value as the sum of two polynomials in a finite field, we propose a new key management scheme for dynamic access hierarchy. The newly proposed scheme supports full dynamics at both the node level and user level in a uniform yet efficient manner. Furthermore, the new scheme allows access hierarchy to be a random structure and can be flexibly adapted to many other access models such as ,transfer down' and ,depth-limited transfer'. Copyright © 2007 John Wiley & Sons, Ltd. [source] Regulatory impact on insect biotechnology and pest managementENTOMOLOGICAL RESEARCH, Issue 4 2007Chris A. WOZNIAK Abstract The application of insect biotechnology is promising for the development of environmentally compatible pest management solutions. As we have refined and enhanced genetic engineering techniques in several insect species that cause significant economic loss and public health injury, it has become clear that insect biotechnology will move forward as one of the key tools of pest management in agriculture and in the human environment. Well characterized genetic elements can be manipulated toward specific aims and maintain a viable insect, albeit one with diminished capacity to exchange genetic material, vector a virus or bacterium, or complete its life cycle. Despite this degree of knowledge and precision, there remain unanswered questions regarding environmental fate, release and public acceptance of this technology. The uncertainty surrounding any novel technology inevitably increases the level of regulatory scrutiny associated with its use. Although the term "insect biotechnology" has many connotations, it certainly includes the genetic modification of symbiotic or commensally associated microbes as a means of delivering a trait (e.g. a toxin) to manage plant and human diseases and insect pests. The distinction between this paratransgenic approach and direct genetic modification of insect pests is an important one biologically as well as from a regulatory standpoint. The regulatory framework for microbial applications to agriculture is in many instances in place; however, we must strive to forge the development of guidelines and regulations that will foster deployment of insect biotechnologies. [source] BROADENING THE APPLICATION OF EVOLUTIONARILY BASED GENETIC PEST MANAGEMENTEVOLUTION, Issue 2 2008Fred Gould Insect- and tick-vectored diseases such as malaria, dengue fever, and Lyme disease cause human suffering, and current approaches for prevention are not adequate. Invasive plants and animals such as Scotch broom, zebra mussels, and gypsy moths continue to cause environmental damage and economic losses in agriculture and forestry. Rodents transmit diseases and cause major pre- and postharvest losses, especially in less affluent countries. Each of these problems might benefit from the developing field of Genetic Pest Management that is conceptually based on principles of evolutionary biology. This article briefly describes the history of this field, new molecular tools in this field, and potential applications of those tools. There will be a need for evolutionary biologists to interact with researchers and practitioners in a variety of other fields to determine the most appropriate targets for genetic pest management, the most appropriate methods for specific targets, and the potential of natural selection to diminish the effectiveness of genetic pest management. In addition to producing environmentally sustainable pest management solutions, research efforts in this area could lead to new insights about the evolution of selfish genetic elements in natural systems and will provide students with the opportunity to develop a more sophisticated understanding of the role of evolutionary biology in solving societal problems. [source] The potential for interactions between predation and habitat change to cause population declines of farmland birdsIBIS, Issue 1 2004K. L. Evans Population declines are often attributed to either habitat change or increased predation rates, without a full consideration of the potential for these two factors to interact. This may lead to an inaccurate diagnosis of the causes of population decline and thus the selection of inappropriate management solutions. Here mechanisms through which habitat change and predation could interact are reviewed. Examples of how these may have contributed to population declines are provided, focusing on European farmland birds. However, very few appropriate studies have been conducted that allow the role of such interactions to be assessed accurately. To remedy this situation experimental designs that could detect the presence of interactive mechanisms are described. When habitat change and predation interact, conservation managers are provided with the opportunity to control predation impacts through habitat management rather than predator removal, which may provide a more cost-effective management strategy. [source] INTEGRATING HUMANS IN ECOSYSTEM MANAGEMENT USING MULTI-CRITERIA DECISION MAKING,JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, Issue 2 2003Georgios E. Pavlikakis ABSTRACT: The Ecosystem Management (EM) process belongs to the category of Multi-Criteria Decision Making (MCDM) problems. It requires appropriate decision support systems (DSS) where "all interested people" would be involved in the decision making process. Environmental values critical to EM, such as the biological diversity, health, productivity and sustainability, have to be studied, and play an important role in modeling the ecosystem functions; human values and preferences also influence decision making. Public participation in decision and policy making is one of the elements that differentiate EM from the traditional methods of management. Here, a methodology is presented on how to quantify human preferences in EM decision making. The case study of the National Park of River Nestos Delta and Lakes Vistonida and Ismarida in Greece, presented as an application of this methodology, shows that the direct involvement of the public, the quantification of its preferences and the decision maker's attitude provide a strong tool to the EM decision making process. Public preferences have been given certain weights and three MCDM methods, namely, the Expected Utility Method, Compromise Programming and the Analytic Hierarchy Process, have been used to select alternative management solutions that lead to the best configuration of the ecosystem and are also socially acceptable. [source] From data to knowledge and back again: understanding the limitations of KMSKNOWLEDGE AND PROCESS MANAGEMENT: THE JOURNAL OF CORPORATE TRANSFORMATION, Issue 3 2003Tom ButlerArticle first published online: 21 JUL 200 Researchers in the field of information systems (IS) view IT-enabled knowledge management solutions as novel approaches to the stimulation of creativity and innovation in post-industrial organizations; hence, the focus by researchers on the role of information and communication technologies (ICT) in enabling and supporting knowledge work. However, despite some success stories, recent research indicates that the majority of knowledge management systems (KMS) have been unsuccessful. This situation has led some to voice deep-seated concerns about the knowledge management paradigm and its influence on the IS field,particularly the belief that IT can help capture, store and transfer knowledge. This paper's objective is to deepen the IS field's understanding of the limitations and capabilities of knowledge management systems. A case study of an Irish software vendor's experiences in developing KMS using case-based reasoning technologies is undertaken to help achieve this objective. The findings of this study illustrate that: (a) the KMS developed in the organization studied did not meet the claims of their creators, as the applications provided a poor approximation of the ,horizons of understanding' of domain experts whose knowledge these systems purported to capture, store and transfer; (b) the ontological and epistemological perspectives of developers were overtly functionalist in orientation and were insensitive to the socially constructed and institutional nature and context of knowledge. The findings lend weight to the claim that information technology deals with data only, and knowledge management requires social as opposed to technical support, in that appropriate institutional mechanisms, rather that technological solutions, constitute the corporate memory. Copyright © 2003 John Wiley & Sons, Ltd. [source] | |||||||||||||